JPH0631171B2 - Extruded product and manufacturing method thereof - Google Patents
Extruded product and manufacturing method thereofInfo
- Publication number
- JPH0631171B2 JPH0631171B2 JP61244353A JP24435386A JPH0631171B2 JP H0631171 B2 JPH0631171 B2 JP H0631171B2 JP 61244353 A JP61244353 A JP 61244353A JP 24435386 A JP24435386 A JP 24435386A JP H0631171 B2 JPH0631171 B2 JP H0631171B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- raw material
- resin beads
- product
- extruded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 235000012438 extruded product Nutrition 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 47
- 229920003002 synthetic resin Polymers 0.000 claims description 47
- 239000002994 raw material Substances 0.000 claims description 38
- 239000011324 bead Substances 0.000 claims description 35
- 238000001125 extrusion Methods 0.000 claims description 25
- MKTRXTLKNXLULX-UHFFFAOYSA-P pentacalcium;dioxido(oxo)silane;hydron;tetrahydrate Chemical compound [H+].[H+].O.O.O.O.[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O MKTRXTLKNXLULX-UHFFFAOYSA-P 0.000 claims description 20
- 239000000378 calcium silicate Substances 0.000 claims description 19
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 19
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- UGGQKDBXXFIWJD-UHFFFAOYSA-N calcium;dihydroxy(oxo)silane;hydrate Chemical compound O.[Ca].O[Si](O)=O UGGQKDBXXFIWJD-UHFFFAOYSA-N 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 7
- 239000012783 reinforcing fiber Substances 0.000 claims description 7
- 239000000306 component Substances 0.000 claims 1
- 238000001723 curing Methods 0.000 description 20
- 239000002585 base Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000013007 heat curing Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は建物の外壁等に用いられる成形品に関し、特に
内部に独立気泡孔を有し保温性に優れた珪酸カルシウム
系の軽量押出し成形品、及びその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a molded product used for an outer wall of a building and the like, and in particular, a calcium silicate-based lightweight extruded product having closed cell pores inside and excellent in heat retention. And a manufacturing method thereof.
＜従来技術＞ 珪酸質原料と石灰質原料と少量の有機質又はアスベスト
の如き無機質の補強用繊維質原料と成形用助剤とを加え
て乾式分散混合してから注水混練した後押出機により押
出し成形して成形体となし、トバモライト(Tobermorite
−5CaO・6SiO2・5H2O)又はゾノトライト(Xonotlite−6CaO
・6SiO2・H2O)系組成物の成形体を生成せしめる蒸気中で
加熱硬化させ、後乾燥させることにより珪酸カルシウム
成形品を製造する方法が知られている（特開昭５１−１
１２８３２号）。<Prior Art> A siliceous raw material, a calcareous raw material, a small amount of a reinforcing fibrous raw material for an inorganic substance such as organic or asbestos, and a molding aid are added, dry-dispersed and mixed, and then water-blended and kneaded, followed by extrusion molding by an extruder. To form a molded body, Tobermorite
-5CaO ・ 6SiO 2・ 5H 2 O) or xonotlite-6CaO
· 6SiO 2 · H 2 O) system cured by heating at product allowed to steam the green body composition, method of producing a calcium silicate molded product by post-drying is known (JP-51-1
12832).
＜発明が解決しようとする問題点＞ 一般に珪酸カルシウム系板体は、トバモライト及び／又
はゾノトライトの結晶が箔状或いは繊維状乃至針状の微
細な結晶で構成されているので、低密度の軽量成形体で
はあるが強度が低いものであった。<Problems to be Solved by the Invention> Generally, since calcium silicate-based plate is composed of tobermorite and / or xonotlite crystals composed of foil-like or fibrous or needle-like fine crystals, low-density lightweight molding is performed. Although it was a body, it had low strength.
また、上記したような押出し成形によって珪酸カルシウ
ム系成形品を得る場合には強度上昇を図ることができる
ものの、押出成形機を用いて一般に１５０〜３５０kg/c
m2のような高圧で押出し成形されるため、高比重のもの
とならざるを得ず、軽量化の要請に反することとなって
いた。In addition, although strength can be increased when a calcium silicate-based molded product is obtained by the extrusion molding as described above, it is generally 150 to 350 kg / c using an extruder.
Since it is extruded at a high pressure such as m 2 , it has to have a high specific gravity, which is against the demand for weight reduction.
＜問題点を解決するための手段＞ 従って本発明は、高強度且つ低比重の珪酸カルシウム系
成形品を提供することを目的とする。<Means for Solving Problems> Therefore, an object of the present invention is to provide a calcium silicate-based molded product having high strength and low specific gravity.
本発明の別の目的は、押出し成形における押出圧力によ
っても破壊或いは変形されることのない、珪酸カルシウ
ム系成形品を提供することにある。Another object of the present invention is to provide a calcium silicate-based molded product that is not broken or deformed by the extrusion pressure in extrusion molding.
これら目的を達成し、上記従来技術の問題点を解決すべ
く創案された本発明は、珪酸質原料と石灰質原料とを主
成分とした混練物を押出し成形して得られる押出し成形
品であって、その成形品基材の内部に多数の独立気泡孔
を有すると共に該独立気泡孔の内面にその一部が該基材
に含浸された合成樹脂被膜が形成されていることを特徴
とする押出し成形品である。The present invention, which was devised to achieve these objects and solve the problems of the above-mentioned conventional techniques, is an extruded product obtained by extruding a kneaded product containing a siliceous raw material and a calcareous raw material as main components. Extrusion molding characterized in that the base material of the molded article has a large number of closed cell pores, and a synthetic resin coating part of which is impregnated in the base material is formed on the inner surface of the closed cell pores. It is a product.
本発明はまた、このような押出し成形品の製造方法も提
供するものであって、珪酸質原料と石灰質原料と補強繊
維と合成樹脂ビーズと適量の水とを原材料とし、これら
を適宜混合して得た混練物を押出し成形機により押出し
成形し、得られた成形物を混入した合成樹脂ビーズの溶
融温度以上の温度条件でオートクレーブ養生又は加熱養
生することによって養生硬化させることを特徴とする珪
酸カルシウム系押出し成形品の製造方法である。この方
法においては、珪酸質原料と石灰質原料とを含む混合物
を珪酸カルシウム水和物であるトバモライト又はゾノト
ライトを生成せしめる温度以上の温度条件に加熱せしめ
ることが必須であるが、この工程は押出し成形機により
得られた押出し成形物を合成樹脂ビーズの溶融温度以上
の温度条件でオートクレーブ養生する工程と同時に行っ
ても、或いはこれら珪酸質原料と石灰質原料とに適量の
水を加えて得た混練物をオートクレーブ中で撹拌して十
分な水熱反応によりトバモライト又はゾノトライトの結
晶スラリーを得た後に補強繊維と合成樹脂ビーズとを混
合して押出し成形機にかけるようにしても、或いはまた
該混練物をオートクレーブ中で撹拌して一部を水熱反応
せしめてトバモライト又はゾノトライトの半結晶化スラ
リーを得た後に補強繊維と合成樹脂ビーズとを混合して
押出し成形し更に未反応分のトバモライト又はゾノトラ
イト結晶化反応を合成樹脂ビーズ溶融温度以上の温度条
件によるオートクレーブ養生と同時に行うようにしても
よい。The present invention also provides a method for producing such an extruded product, which comprises using a siliceous raw material, a calcareous raw material, reinforcing fibers, synthetic resin beads, and an appropriate amount of water as raw materials, and mixing them appropriately. The obtained kneaded product is extrusion-molded by an extrusion molding machine, and calcium silicate is characterized by curing and curing by autoclave curing or heat curing under a temperature condition of the melting temperature of the synthetic resin beads mixed with the obtained molded product. It is a method for producing a system extrusion molded article. In this method, it is essential that the mixture containing the siliceous raw material and the calcareous raw material is heated to a temperature condition that is equal to or higher than the temperature at which tobermorite or zonotolite, which is a calcium silicate hydrate, is heated, but this step is an extruder. The extruded product obtained in accordance with the step of autoclave curing at a temperature above the melting temperature of the synthetic resin beads, or a kneaded product obtained by adding an appropriate amount of water to these siliceous raw material and calcareous raw material. After stirring in an autoclave to obtain a crystalline slurry of tobermorite or xonotlite by sufficient hydrothermal reaction, reinforcing fibers and synthetic resin beads may be mixed and then subjected to an extrusion molding machine, or the kneaded product may be autoclaved. The mixture was stirred in water and a part was hydrothermally reacted to obtain a semi-crystallized slurry of tobermorite or xonotlite. It may be carried out reinforcement fibers and synthetic resin beads and at the same time are mixed extruded further autoclave curing the tobermorite or xonotlite crystallization reaction of unreacted with synthetic resin beads a temperature above the melting temperature conditions.
＜作用＞ 珪酸質原料と石灰質原料とを主成分とした混練物を押出
し成形して得られる押出し成形品において、合成樹脂ビ
ーズが添加混入されているため、これを養生して得られ
る該成形品内部には独立気泡孔が多数形成される。<Operation> In an extruded product obtained by extruding a kneaded material containing a siliceous raw material and a calcareous raw material as main components, synthetic resin beads are added and mixed, so the molded product obtained by curing this Many closed-cell holes are formed inside.
該成形品は、添加混入された合成樹脂ビーズの溶融温度
以上の温度条件でオートクレーブ養生されて養生硬化さ
れるため、該養生過程において該合成樹脂ビーズが溶融
してその一部が基材に含浸され、また独立気泡孔の内面
が合成樹脂被膜によって被覆形成される。Since the molded product is aged by autoclaving at a temperature equal to or higher than the melting temperature of the added and mixed synthetic resin beads and cured by curing, the synthetic resin beads are melted during the curing process and a part of the synthetic resin beads is impregnated into the base material. In addition, the inner surface of the closed-cell hole is covered with a synthetic resin film.
該成形品の製造工程においては、合成樹脂ビーズの溶融
温度以上の温度条件でのオートクレーブ養生に先立って
又は同時に、珪酸カルシウム系水和物であるトバモライ
ト又はゾノトライトを生成せしめ、珪酸カルシウム系の
軽量押出し成形体が得られる。In the manufacturing process of the molded article, prior to or at the same time as the autoclave curing under the temperature condition of the melting temperature of the synthetic resin beads or more, tobermorite or zonotolite which is a calcium silicate hydrate is produced, and the calcium silicate lightweight extrusion is performed. A molded body is obtained.
＜構成の具体的な説明＞ 本発明による珪酸カルシウム系の押出し成形品は、成形
品基材の内部に多数の独立気泡孔を有すると共に該独立
気泡孔の内面に一部基材に含浸された合成樹脂被膜が形
成された押出し成形品であって、その一例は第１図に略
図的に示す通りである。即ち、本発明による押出し成形
品１には多数の独立気泡孔２が形成されている。この独
立気泡孔の一について拡大して示したのが第２図であ
り、該独立気泡孔２の周面は混入合成樹脂ビーズの溶融
によって形成された合成樹脂被膜４によって被覆形成さ
れていると共に、その一部が基材３（第１図）に浸透含
浸されて樹脂含浸部５を形成している。これら図面によ
り、本発明の押出し成形品においては、独立気泡孔２と
基材３とが合成樹脂被膜４を介して密着形成されている
ことが理解されるであろう。<Detailed Description of Configuration> The calcium silicate-based extrusion-molded product according to the present invention has a large number of closed cell pores inside the molded article substrate, and the inside surface of the closed cell holes is partially impregnated into the substrate. It is an extrusion-molded product having a synthetic resin film formed thereon, an example of which is shown schematically in FIG. That is, the extrusion-molded product 1 according to the present invention has a large number of closed-cell holes 2. An enlarged view of one of the closed-cell holes is shown in FIG. 2. The peripheral surface of the closed-cell hole 2 is covered with a synthetic resin film 4 formed by melting the mixed synthetic resin beads. A part of the resin is impregnated into the base material 3 (FIG. 1) to form the resin impregnated portion 5. From these drawings, it will be understood that in the extrusion-molded article of the present invention, the closed cell pores 2 and the base material 3 are closely formed via the synthetic resin coating film 4.
このような本発明の押出し成形品を製造するに当たって
必要とされる原料は、珪酸質原料、石灰質原料、繊維質
原料、合成樹脂ビーズ、適量の水、及び必要に応じて添
加配合されるメチルセルロース、助剤等である。Raw materials required in producing such an extrusion-molded article of the present invention are siliceous raw materials, calcareous raw materials, fibrous raw materials, synthetic resin beads, an appropriate amount of water, and methyl cellulose added and blended as necessary, It is an auxiliary agent or the like.
珪酸質原料としては、珪砂、珪藻土、クレー、シリカゲ
ル、ホワイトカーボン、シリカダスト、フェロシリコン
ダスト等の珪酸質物質を用いることができる。As the siliceous raw material, siliceous substances such as silica sand, diatomaceous earth, clay, silica gel, white carbon, silica dust, and ferrosilicon dust can be used.
石灰質原料は、生石灰、消石灰、カーバイド残渣等であ
る。Calcareous raw materials include quick lime, slaked lime, and carbide residue.
繊維質原料としては、アスベスト、炭素繊維、合成繊
維、木質繊維、麻繊維、耐アルカリ性ガラス繊維等を用
いることができる。As the fibrous raw material, asbestos, carbon fiber, synthetic fiber, wood fiber, hemp fiber, alkali resistant glass fiber and the like can be used.
また、合成樹脂ビーズは、ポリエチレン、ポリスチレ
ン、ポリプロピレン、アクリル、ビニル系等のものを適
宜選択して用いることができる。Further, as the synthetic resin beads, polyethylene, polystyrene, polypropylene, acryl, vinyl, or the like can be appropriately selected and used.
また、上記した各々の原料においては、それらを単独で
或いは適宜複数種を併用して用いることができる。In addition, each of the above-mentioned raw materials may be used alone or in combination of two or more kinds.
これら原料を用いて本発明の押出し成形品を製造するに
は、次の３通りの方法のいずれかを適宜選択して用いる
ことができる。In order to produce the extrusion molded article of the present invention using these raw materials, any one of the following three methods can be appropriately selected and used.
第一の方法は、珪酸カルシウム反応によるトバモライト
又はゾノトライトの生成と合成樹脂ビーズ溶融温度以上
の温度における養生とを一工程で行わしめる方法であ
る。即ち、まず、珪酸質原料と石灰質原料と繊維質原料
と合成樹脂ビーズとを混合し、空練りした後、メチルセ
ルロースと適量の水とを加えて混練して混練物を得る。
この混練物を押出し成形機に投入して押出し成形し、任
意長さに切断した後、成形物をパレットに受け取る。The first method is a method in which the production of tobermorite or xonotlite by the calcium silicate reaction and the curing at a temperature equal to or higher than the melting temperature of the synthetic resin beads are performed in one step. That is, first, a siliceous raw material, a calcareous raw material, a fibrous raw material, and synthetic resin beads are mixed and kneaded, and then methyl cellulose and an appropriate amount of water are added and kneaded to obtain a kneaded product.
This kneaded product is put into an extrusion molding machine, extruded and molded, cut into an arbitrary length, and then the molded product is received on a pallet.
押出し成形は、その押出し方向に連続した貫通孔を有す
る中空押出しとして行うこともできる。The extrusion molding can also be performed as a hollow extrusion having continuous through holes in the extrusion direction.
得られた成形物は、次いで、珪酸カルシウム水和物であ
るトバモライト又はゾノトライトを生成する温度及び混
入した合成樹脂ビニルの溶融温度以上の温度条件にてオ
ートクレーブ養生を行い、養生硬化する。このオートク
レーブ養生によって、成形物の基材としてトバモライト
又はゾノトライトが生成されると共に、該基材内で合成
樹脂ビーズが溶融されてその一部が基材内に浸透含浸さ
れ、内面が合成樹脂被膜で被覆形成された独立気泡孔が
多数含有せしめるものである。The obtained molded product is then subjected to autoclave curing at a temperature at which the temperature of forming tobermorite or xonotlite, which is a hydrated calcium silicate, and the melting temperature of the mixed synthetic resin vinyl or higher, and then curing and curing. By this autoclave curing, tobermorite or xonotlite is produced as the base material of the molded product, and the synthetic resin beads are melted in the base material so that a part of the synthetic resin beads is permeated and impregnated into the base material, and the inner surface is coated with the synthetic resin coating. A large number of closed-cell pores formed by coating are contained.
第二の方法は、まず珪酸カルシウム反応をさせて板状体
に押出し成形したものを、合成樹脂ビーズ溶融温度以上
で養生硬化させる方法である。即ち、珪酸質原料と石灰
質原料に適量の水に加えて混練し、得られた混練物をオ
ートクレーブ中で撹拌し水熱反応による珪酸カルシウム
水和物であるトバモライト又はゾノトライトの結晶スラ
リーを得、この結晶スラリー中に補強繊維と合成樹脂ビ
ーズを混合し、該混合物をそのまま或いは適当な水分量
となるまで脱水した後、押出し成形機に投入して押出し
成形し、任意長さに切断した後、得られた成形物をパレ
ットに受け取る。次いで、成形物は、合成樹脂ビーズ溶
融温度以上の温度条件でオートクレーブ養生或いは加熱
養生されて、養生硬化される。このオートクレーブ養生
或いは加熱養生によって、合成樹脂ビーズが、トバモラ
イト又はゾノトライトの結晶組織より成る基材中で溶融
状態になされ、その一部が基材内に浸透含浸されて、同
様に内面が合成樹脂被膜で被覆形成された独立気泡孔を
多数含有する押出し成形品が得られる。The second method is a method in which calcium silicate reaction is first performed to extrude and form a plate-like body, and then curing is carried out at a melting temperature of synthetic resin beads or higher. That is, an appropriate amount of water is added to a siliceous raw material and a calcareous raw material and kneaded, and the obtained kneaded product is stirred in an autoclave to obtain a crystal slurry of tobermorite or xonotlite which is a calcium silicate hydrate by hydrothermal reaction. Reinforcing fibers and synthetic resin beads are mixed in a crystal slurry, and the mixture is dehydrated as it is or until it has an appropriate water content, then put into an extrusion molding machine to be extruded and molded, and cut into arbitrary lengths, and then obtained. The formed product is received on a pallet. Next, the molded product is subjected to autoclave curing or heat curing under a temperature condition equal to or higher than the melting temperature of the synthetic resin beads to be cured and cured. By this autoclave curing or heat curing, the synthetic resin beads are made into a molten state in the base material composed of the crystal structure of tobermorite or xonotlite, and a part of the synthetic resin beads is permeated and impregnated into the base material, and similarly the inner surface is coated with the synthetic resin film. An extruded product containing a large number of closed cell pores formed by coating is obtained.
第三の方法は、第二の方法における珪酸カルシウム反応
を完全に行わずに一部のみ行ってトバモライト又はゾノ
トライトの半結晶化スラリーを得、これを押出し成形品
とした後、所定温度以上でオートクレーブ養生して残余
の未反応分をトバモライト又はゾノトライトに結晶化さ
せると共に合成樹脂ビーズ溶融を行わしめる方法であ
る。即ち、珪酸質原料と石灰質原料とに適量の水を加え
て混練して得られた混練物をオートクレーブ中で撹拌
し、その一部が水熱反応によるトバモライト又はゾノト
ライトの結晶化がなされた時にオートクレーブを中断し
て半結晶化スラリーを得、この半結晶化スラリーに補強
繊維と合成樹脂ビーズを混合し、得られた混合物をその
まま或いは適当な水分量になるまで脱水した後、押出し
成形機に投入して押出し成形し、任意長さに切断した
後、得られた成形物をパレットに受け取る。次いで、成
形物中の未反応分が水熱反応によりトバモライト又はゾ
ノトライトを生成する温度及び合成樹脂ビーズの溶融温
度以上の温度条件でオートクレーブ養生して、該成形物
を養生硬化する。この工程によっても、同様に、第１図
図示の如き押出し成形品が得られる。The third method is to carry out a part of the calcium silicate reaction in the second method, not completely, to obtain a semi-crystallized slurry of tobermorite or xonotlite, which is used as an extrusion molded product, and then autoclaved at a predetermined temperature or higher. This is a method of curing and crystallizing the remaining unreacted portion into tobermorite or xonotlite, and melting the synthetic resin beads. That is, a kneaded material obtained by adding an appropriate amount of water to a siliceous raw material and a calcareous raw material and kneading the mixture is stirred in an autoclave, and a part of the mixture is autoclaved when crystallization of tobermorite or zonotolite is caused by a hydrothermal reaction. To obtain a semi-crystallized slurry, mix reinforcing fibers and synthetic resin beads in the semi-crystallized slurry, and dehydrate the resulting mixture as it is or until it has an appropriate water content, and then put it into an extrusion molding machine. Then, the resulting product is extruded, cut to an arbitrary length, and then the obtained molded product is received on a pallet. Then, the unreacted component in the molded product is aged by autoclaving under the temperature conditions at which the temperature of forming tobermorite or xonotlite by the hydrothermal reaction and the melting temperature of the synthetic resin beads or higher are obtained, and the molded product is cured by curing. Through this step as well, an extrusion molded product as shown in FIG. 1 is similarly obtained.
＜発明の効果＞ 本発明においては珪酸カルシウム系の押出し成形品にお
いて強度的に優れた合成樹脂ビーズを添加混入している
ため、高強度且つ軽量の珪酸カルシウム系押出し成形品
が得られる。<Effects of the Invention> In the present invention, since the synthetic resin beads excellent in strength are added and mixed in the calcium silicate-based extrusion molded product, a high-strength and lightweight calcium silicate-based extrusion molded product is obtained.
また、得られた成形品を混入合成樹脂ビーズの溶融温度
以上の温度条件でオートクレーブ養生することから、成
形品内部に多数形成される独立気泡孔の内面が合成樹脂
被膜によって被覆形成され且つ該被膜の一部が基材に浸
透含浸されるため、成形品の強度が著しく向上する。更
に、該独立気泡孔が多数存在することから、成形品の軽
量化と共に保温性の向上をもたらす。独立気泡孔は合成
樹脂被膜によって被覆されているので、雨水等の水分の
浸透が防止され、保温性を低下させることがない。In addition, since the obtained molded product is subjected to autoclave curing at a temperature condition equal to or higher than the melting temperature of the mixed synthetic resin beads, the inner surface of a large number of closed-cell pores formed inside the molded product is covered with a synthetic resin film and the film is formed. Since a part of the above is permeated and impregnated into the base material, the strength of the molded product is significantly improved. Further, since there are a large number of the closed cell holes, the weight of the molded product is reduced and the heat retention is improved. Since the closed-cell pores are covered with the synthetic resin film, the penetration of moisture such as rainwater is prevented, and the heat retention is not deteriorated.
更に、本発明方法は従来の押出し成形製造設備をそのま
ま使用して実施することができるので、経済性に優れて
いる。Further, the method of the present invention can be carried out by using the conventional extrusion molding manufacturing equipment as it is, and therefore it is excellent in economic efficiency.
第１図は本発明の押出し成形品の一例についてその構造
を略解的に示す破断面図、第２図は第１図図示のものの
一部を拡大して示す拡大図である。 符号の説明 １……押出し成形品、２……独立気泡孔 ３……基材、４……合成樹脂被膜 ５……樹脂含浸部FIG. 1 is a fragmentary sectional view schematically showing the structure of an example of the extrusion molded article of the present invention, and FIG. 2 is an enlarged view showing a part of the one shown in FIG. 1 in an enlarged manner. Explanation of symbols 1 ... Extruded product, 2 ... Closed cell pores 3 ... Base material, 4 ... Synthetic resin coating 5 ... Resin impregnated part
Claims (4)
混練物を押出し成形して得られる押出し成形品であっ
て、その成形品基材の内部に多数の独立気泡孔を有する
と共に該独立気泡孔の内面にその一部が該基材に含浸さ
れた合成樹脂被膜が形成されていることを特徴とする押
出し成形品。1. An extruded product obtained by extruding a kneaded product containing a siliceous raw material and a calcareous raw material as main components, wherein the extruded molded product has a large number of closed cell pores inside the base material of the extruded product. An extruded product, characterized in that a synthetic resin film, a part of which is impregnated in the base material, is formed on the inner surface of the closed cell pores.
これに補強繊維と合成樹脂ビーズと適量の水とを加えて
混練し、 得られた混練物を押出し成形機により押出し成形し、 得られた成形物を、珪酸カルシウム水和物であるトバモ
ライト又はゾノトライトを生成せしめる温度及び該合成
樹脂ビーズの溶融温度以上の温度条件でオートクレーブ
養生して養生硬化する、 工程より成ることを特徴とする、押出し成形品の製造方
法。2. A siliceous raw material and a calcareous raw material as main components,
Reinforcing fibers, synthetic resin beads and an appropriate amount of water were added and kneaded, and the resulting kneaded product was extruded by an extrusion molding machine, and the obtained molded product was calcium silicate tobermorite or xonotrite. A method for producing an extrusion-molded article, which comprises a step of curing by autoclave curing at a temperature above the melting temperature of the synthetic resin beads and the melting temperature of the synthetic resin beads.
これに適量の水を加えて混練し、 得られた混練物をオートクレーブ中で攪拌し水熱反応に
よりトバモライト又はゾノトライトの結晶スラリーを
得、 該結晶スラリーに補強繊維と合成樹脂ビーズとを混合
し、 得られた混合物を押出し成形機により押出し成形し、 得られた成形物を、該合成樹脂ビーズの溶融温度以上の
温度条件でオートクレーブ養生し或いは加熱養生する、 工程より成ることを特徴とする、押出し成形品の製造方
法。3. A siliceous raw material and a calcareous raw material as main components,
An appropriate amount of water is added to this and kneaded, and the obtained kneaded product is stirred in an autoclave to obtain a crystal slurry of tobermorite or xonotlite by hydrothermal reaction, and the reinforcing fiber and synthetic resin beads are mixed with the crystal slurry, The obtained mixture is extruded by an extrusion molding machine, and the obtained molded product is autoclave-cured or heat-cured at a temperature condition equal to or higher than the melting temperature of the synthetic resin beads. Molded article manufacturing method.
これに適量の水を加えて混練し、 得られた混練物をオートクレーブ中で攪拌して、一部が
水熱反応によりトバモライト又はゾノトライトの結晶化
された時、オートクレーブを中断して半結晶化スラリー
を得、 該半結晶化スラリーに補強繊維と合成樹脂ビーズとを混
合し、 得られた混合物を押出し成形機により押出し成形し、 得られた成形物を、その未反応分が水熱反応によりトバ
モライト又はゾノトライトを生成せしめる温度及び該合
成樹脂ビーズの溶融温度以上の温度条件でオートクレー
ブ養生して養生硬化する、 工程より成ることを特徴とする、押出し成形品の製造方
法。4. A siliceous raw material and a calcareous raw material as main components,
An appropriate amount of water was added to this and kneaded, and the resulting kneaded product was stirred in an autoclave, and when a part of tobermorite or xonotlite was crystallized by a hydrothermal reaction, the autoclave was interrupted and a semi-crystallized slurry was obtained. Reinforcing fiber and synthetic resin beads are mixed with the semi-crystallized slurry, and the obtained mixture is extruded by an extrusion molding machine. The resulting unreacted component is tobermorite by hydrothermal reaction. Alternatively, the method for producing an extrusion-molded article comprises the steps of curing by autoclave curing and curing at a temperature at which xonotlite is generated and a melting temperature of the synthetic resin beads or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61244353A JPH0631171B2 (en) | 1986-10-15 | 1986-10-15 | Extruded product and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61244353A JPH0631171B2 (en) | 1986-10-15 | 1986-10-15 | Extruded product and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63100078A JPS63100078A (en) | 1988-05-02 |
| JPH0631171B2 true JPH0631171B2 (en) | 1994-04-27 |
Family
ID=17117437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61244353A Expired - Lifetime JPH0631171B2 (en) | 1986-10-15 | 1986-10-15 | Extruded product and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631171B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4963729A (en) * | 1972-10-23 | 1974-06-20 | ||
| JPS56134549A (en) * | 1980-03-21 | 1981-10-21 | Sumitomo Metal Mining Co | Manufacture of waterproofing vapor-cured lightweght foamed concrete |
| JPS5717458A (en) * | 1980-07-02 | 1982-01-29 | Sumitomo Metal Mining Co | Good impact-resistance steam-cured lightweight foamed concrete |
| JPS57170886A (en) * | 1981-04-13 | 1982-10-21 | Toyo Pairu Hiyuumukan Seisakus | Inorganic heat-insulating board manufacture and heat-insulating board |
-
1986
- 1986-10-15 JP JP61244353A patent/JPH0631171B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63100078A (en) | 1988-05-02 |
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