JPH0244683B2 - - Google Patents
Info
- Publication number
- JPH0244683B2 JPH0244683B2 JP61305176A JP30517686A JPH0244683B2 JP H0244683 B2 JPH0244683 B2 JP H0244683B2 JP 61305176 A JP61305176 A JP 61305176A JP 30517686 A JP30517686 A JP 30517686A JP H0244683 B2 JPH0244683 B2 JP H0244683B2
- Authority
- JP
- Japan
- Prior art keywords
- asbestos
- calcareous
- surface layer
- molded product
- silicic acid
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、表面層に石綿を含有していない複層
の押出成形珪酸質−石灰質系成形品及びその製法
に関し、更に詳細には、表面層に石綿を含まずに
不燃性、耐火性、寸法安定性を有する、特に、床
材等に有用な複層押出成形珪酸質−石灰質系成形
品及びその製方に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a multi-layer extrusion-molded silicic acid-calcareous molded product whose surface layer does not contain asbestos and a method for producing the same, and more specifically relates to a surface layer containing no asbestos. The present invention relates to a multi-layer extrusion-molded siliceous-calcareous molded product which is non-combustible, fire-resistant and dimensionally stable without containing asbestos, and which is particularly useful for flooring materials, etc., and a method for producing the same.
［従来の技術］
建築用内外装材として、従来、セメントや珪酸
カルシウム系の水硬性物質を押出成形した製品が
開発され、よく用いられている。これらの製品
は、軽量で断熱効果に優れ、不燃で耐火性、加工
性に優れるところから建築用内外装材として、よ
く用いられているが、強度の補強のために石綿を
含有するために、床材等のように使用中に摩耗す
るようなものには、石綿飛散の可能性があり、健
康、衛生の上で問題であつた。[Prior Art] Conventionally, products made by extruding cement or calcium silicate-based hydraulic substances have been developed and often used as interior and exterior materials for buildings. These products are often used as interior and exterior materials for construction because they are lightweight, have excellent heat insulation effects, are non-combustible, have excellent fire resistance, and are easy to process. However, they contain asbestos to reinforce their strength. Materials that wear out during use, such as flooring materials, have the possibility of asbestos scattering, which is a health and hygiene problem.
然し乍ら、無機硬化体のつねとして、成形体に
は繊維物質で引張強度などを補強する必要があ
る。そのために、補強用としての石綿含有は必要
不可欠のものであつた。 However, as with any inorganic cured product, it is necessary to reinforce the tensile strength of the molded product with a fibrous material. For this reason, the inclusion of asbestos as reinforcement was essential.
［発明が可決しようとする問題点］
本発明は、以上述べたような従来の珪酸質−石
灰質系押出成形体の問題点を解決すべく鋭意研究
を行なつた結果、表面層に石綿の含有のない珪酸
質−石灰質系の押出成形品を提供しようとするも
のである。[Problems to be Solved by the Invention] The present invention was developed as a result of intensive research to solve the problems of conventional silicic acid-calcareous extruded products as described above. The object of the present invention is to provide a silicic acid-calcareous extrusion molded product that is free of
従つて、本発明は、従来の珪酸質−石灰質系材
料で無公害な床材などに有用な無機押出成形品を
提供することを目的とする。 Therefore, an object of the present invention is to provide an inorganic extrusion molded article made of conventional silicic acid-calcareous materials and useful for non-polluting flooring materials.
［問題点を解決するための手段］
本発明の要旨とするものは、石綿含有のないセ
メントなどの珪酸質−石灰質系水硬性無機物質を
表面層として、石綿或いは／及び他の補強繊維を
含有し、セメントなどの珪酸質−石灰質系水硬性
物質を基礎層として、一緒に押出成形した構造を
有する、表面層に石綿含有のない複層押出成形珪
酸質−石灰質系成形品である。また、その製法
は、主押出機に、石綿或いは／及び他の補強繊維
を含有するセメントなどの珪酸質−石灰質系水硬
性物質素地を入れ、副押出機に、石綿含有のない
セメントなどの珪酸質−石灰質系水硬性無機物質
素地を入れ、主押出機の後の口金部の先端近くの
部位に副押出機より前記石綿含有のない素地を圧
入するものである。[Means for Solving the Problems] The gist of the present invention is to use a silicate-calcareous hydraulic inorganic material such as cement that does not contain asbestos as a surface layer, and which contains asbestos and/or other reinforcing fibers. It is a multi-layer extruded silicic-calcareous molded product having a structure in which a silicic-calcareous hydraulic material such as cement is used as a base layer and extruded together, and the surface layer does not contain asbestos. In addition, in the manufacturing method, a silicic acid-calcareous hydraulic material base such as cement containing asbestos and/or other reinforcing fibers is placed in the main extruder, and a silicic acid base such as cement that does not contain asbestos is placed in the sub-extruder. A calcareous hydraulic inorganic material matrix is put in the asbestos-free matrix, and the asbestos-free matrix is press-fitted from a sub-extruder into a region near the tip of the mouthpiece after the main extruder.
［作用］
本発明によると、特殊な押出成形方法により、
表面層に石綿含有のない珪酸質−石灰質系成形品
を得るものである。健康に害のある石綿分を表面
層より除いた複層押出成形珪酸質−石灰質系成形
品が得られ、これは、床材等の製品に有用な材料
を提供できる。[Function] According to the present invention, by a special extrusion method,
A siliceous-calcareous molded article containing no asbestos in the surface layer is obtained. A multi-layer extruded siliceous-calcareous molded article is obtained in which the asbestos content harmful to health is removed from the surface layer, and this can provide a useful material for products such as flooring.
本発明に用いられる珪酸質−石灰質系水硬性素
地は、セメント、水硬性せつこう、石灰質原料と
珪酸質原料との混合物等を主原料とし、補強用繊
維物質を含有せしめ、これに用途に応じて補強繊
維、軽量材、硬化促進剤などを加えた調合原料を
水にて混練したものが用いられる。 The siliceous-calcareous hydraulic base material used in the present invention is mainly made of cement, hydraulic plaster, a mixture of calcareous raw materials and silicic raw materials, etc., and contains reinforcing fiber substances, depending on the use. A mixture of raw materials to which reinforcing fibers, lightweight materials, hardening accelerators, etc. are added is kneaded with water.
これには、通常セメントペーストが用いられ
る。また、所望により、美観を目的として白色セ
メントなどを用いることができる。 Cement paste is usually used for this. Furthermore, if desired, white cement or the like may be used for aesthetic purposes.
一方、本発明の複層押出成形品を補強するため
に含有せしめるもの、通常、石綿繊維である。本
発明の基礎層では、通常、石綿繊維で補強する
が、表面層には必要であれば、石綿以外の繊維で
補強する。その他の補強用繊維物質には、ガラス
繊維、炭素繊維等を用いることが好適である。ま
た、ポリアミド、ポリプロピレン、ポリエステ
ル、ビニロン等の有機繊維も、また、パルプなど
も、用いることが可能である。更にこれらの繊維
が持つ特長を相補完するために、２種以上の繊維
の組合わせを用いることができる。 On the other hand, what is contained in order to reinforce the multilayer extrusion molded product of the present invention is usually asbestos fiber. The base layer of the present invention is usually reinforced with asbestos fibers, but the surface layer is reinforced with fibers other than asbestos, if necessary. It is suitable to use glass fiber, carbon fiber, etc. as other reinforcing fiber materials. Furthermore, organic fibers such as polyamide, polypropylene, polyester, and vinylon, as well as pulp and the like can be used. Furthermore, in order to complement the characteristics of these fibers, a combination of two or more types of fibers can be used.
但し、本発明の複層押出成形品の表面層には、
アスベスト含有のないものでなければならない。
即ち、２重構造を持つ押出成形珪酸質−石灰質系
成形品であり、表面層の補強用繊維から石綿を除
去した構造の押出成形品を生産できるものであ
る。 However, the surface layer of the multilayer extrusion molded product of the present invention contains
Must be free of asbestos.
That is, it is an extrusion-molded siliceous-calcareous molded article having a double structure, and it is possible to produce an extrusion-molded article having a structure in which asbestos is removed from the reinforcing fibers in the surface layer.
従つて、本発明の成形品は、第１図の構造のも
のである。表面層２と石綿をも含有し得る基礎層
３よりなり、中空部４を有する珪酸質−石灰質系
押出成形品である。表面層２基礎層３の境界は、
通常、図示の如く平面で充分に密着強度が得られ
るが、凹凸のある面にして、より密着強度を高め
ることもできる。 Therefore, the molded article of the present invention has the structure shown in FIG. It is a silicic acid-calcareous extrusion molded product that includes a surface layer 2 and a base layer 3 that may also contain asbestos, and has a hollow portion 4. The boundary between surface layer 2 and base layer 3 is
Normally, a flat surface as shown in the figure provides sufficient adhesion strength, but it is also possible to increase the adhesion strength by using an uneven surface.
更に、本発明の表面層の素地、組成に熱可塑性
樹脂を含有させて、成形品の強度を改善すること
もできる。従つて、表面層に樹脂を入れることに
よつて外観の優れた表面層を得て、後処理工程を
省略することのできる製品も生産することができ
る。 Furthermore, the strength of the molded article can be improved by incorporating a thermoplastic resin into the base material and composition of the surface layer of the present invention. Therefore, by adding a resin to the surface layer, a surface layer with an excellent appearance can be obtained, and a product can be produced that can omit post-treatment steps.
また、本発明の複層押出成形品の製造に関し
て、珪酸質−石灰質系成形品を構成する材料は、
珪酸質−石灰質系水硬性物質と補強繊維よりなる
が、他に制限されるものではなく、押出成形作業
の能率を向上させるために凝集剤、硬化助剤、粘
性剤、表面活性剤、可塑剤等を添加することがで
きる。また、表面層に靭性、耐摩耗性を付与する
ために有機ポリマーの添加や化粧性能を向上させ
るために、顔料、白色セメント、その他の材料を
含有させ得る。 In addition, regarding the production of the multilayer extrusion molded product of the present invention, the materials constituting the silicic acid-calcareous molded product are:
It consists of a siliceous-calcareous hydraulic substance and reinforcing fibers, but is not limited to other agents, such as flocculants, curing aids, viscosity agents, surfactants, and plasticizers to improve the efficiency of extrusion molding operations. etc. can be added. Additionally, organic polymers may be added to impart toughness and wear resistance to the surface layer, and pigments, white cement, and other materials may be included to improve cosmetic performance.
次に、本発明による複層押出成形品及びその製
法について実施例により説明するが、本発明は、
実施例に限定されるものではない。 Next, the multilayer extrusion molded product and the manufacturing method thereof according to the present invention will be explained using examples.
It is not limited to the examples.
［実施例］
普通ポルトランドセメント80重量部、クリソタ
イル石綿20重量部、メチルセルロース0.8重量部、
水25重量部を混練して得た素地を、第２，３図に
示すように、主押出機８に入れ、普通ポルトラン
ドセメント97重量部、炭素繊維３重量部、メチル
セルロース0.8重量部、水20重量部を混練した素
地を副押出機７に入れ、製品の厚さ60mm、幅600
mmの口金５を通して、中空孔５個を有する成形体
１に押出成形した。上記の素地９は主押出機のス
クリユウ８で押出され、口金５で副押出機７から
連結管６を通つてきた素地と合わされ、中子４の
ある口金５から、図示のように、中空孔を有する
複層押出成形品１（第１図）が得られた。この複
層押出成形品１は、石綿含有のない表面層２と基
礎層３よりなるものである。[Example] 80 parts by weight of ordinary Portland cement, 20 parts by weight of chrysotile asbestos, 0.8 parts by weight of methyl cellulose,
The base material obtained by kneading 25 parts by weight of water was put into the main extruder 8 as shown in Figures 2 and 3, and 97 parts by weight of ordinary Portland cement, 3 parts by weight of carbon fiber, 0.8 parts by weight of methyl cellulose, and 20 parts by weight of water were added. The base material with the weight parts kneaded is put into the sub-extruder 7, and the product thickness is 60mm and the width is 60mm.
The molded product 1 having five hollow holes was extruded through a die 5 having a diameter of 1 mm. The above-mentioned base material 9 is extruded by the screw 8 of the main extruder, and is combined with the base material that has passed through the connecting pipe 6 from the sub-extruder 7 at the nozzle 5. A multilayer extrusion molded product 1 (FIG. 1) was obtained. This multilayer extrusion molded product 1 consists of a surface layer 2 and a base layer 3 that do not contain asbestos.
尚、使用した石綿繊維は、クリソタイルであ
る。また、製造した成形体の寸法は、長さ４ｍ、
横60cmで厚さ60mmである。その表面層の厚さは、
約２〜５mmである。 The asbestos fiber used was chrysotile. In addition, the dimensions of the manufactured molded body are 4 m in length,
It is 60cm wide and 60mm thick. The thickness of the surface layer is
It is approximately 2 to 5 mm.
以上のように成形し、１次養生及びオートクレ
ーブ養生して、製品を得た。 The product was molded as described above, and subjected to primary curing and autoclave curing.
［発明効果］
本発明の複層押出成形珪酸質−石灰質系成形品
及びその製造方法は、
第１に、軽量で断熱効果の優れ、不燃で耐火性
を有し、且つ、表面摩耗しても石綿の飛散のない
床材の改良された成形体製品を製造できること、
第２に、表面層を形成する組成に、白色セメン
ト及び願料を用いて、美観の優れた製品を生産す
ることができること、
第３に、耐摩擦性を高めるために、樹脂を含有
せしめて複層押出成形品の生産ができること、
第４に、建築用部材として化粧性の優れた成形
体製品を提供できること、
第５に、成形後に、後のコーテイング塗布の必
要を略することができる珪酸質−石灰質系複層押
出成形品の供給が可能になつたことなどの技術的
効果が得られた。[Effects of the Invention] The multi-layer extruded siliceous-calcareous molded product of the present invention and its manufacturing method are, firstly, lightweight, excellent in heat insulation, nonflammable and fire resistant, and durable even with surface abrasion. It is possible to produce an improved molded product of flooring material that does not scatter asbestos.Secondly, it is possible to produce a product with excellent appearance by using white cement and application material in the composition that forms the surface layer. , Thirdly, it is possible to produce multi-layer extrusion molded products by incorporating resin in order to increase the abrasion resistance. Fourthly, it is possible to provide molded products with excellent cosmetic properties as architectural members. In addition, technical effects such as the ability to supply a silicic acid-calcareous multilayer extrusion molded product without the need for subsequent coating application after molding were obtained.
第１図は、本発明の珪酸質−石灰質系複層押出
成形品の斜視図である。第２図は、本発明の珪酸
質−石灰質系複層押出成形品の製造に用いる装置
の正面図である。第３図は、第２図のＡ−Ａの線
で切断した本発明の珪酸質−石灰質系複層押出成
形品の製造に用いる装置の断面図である。
FIG. 1 is a perspective view of a silicic acid-calcareous multilayer extrusion molded product of the present invention. FIG. 2 is a front view of the apparatus used for manufacturing the silicic acid-calcareous multilayer extrusion molded product of the present invention. FIG. 3 is a cross-sectional view of the apparatus used for producing the silicic acid-calcareous multilayer extrusion molded product of the present invention, taken along the line A-A in FIG. 2.
Claims (1)
を含有するセメントなどの珪酸質−石灰質系水硬
性物質素地を入れ、口金部に圧入し、副押出機
に、石綿含有のないセメントなどの珪酸質−石灰
質系水硬性無機物質を入れ、主押出機の後の口金
部先端に近い位置で、該先端より手前の部位に、
副押出機より、前記の石綿含有のない素地を圧入
することを特徴とする表面層に石綿含有のない二
層の押出成形珪酸質−石灰質系成形品の製造方
法。1. A silicate-calcareous hydraulic material base such as cement containing asbestos and/or other reinforcing fibers is put into the main extruder and press-fitted into the mouthpiece, and a cement containing no asbestos is put into the sub-extruder. A silicic acid-calcareous hydraulic inorganic substance is placed in a position near the tip of the mouthpiece after the main extruder, and in front of the tip.
A method for producing an extrusion-molded silicic acid-calcareous molded article having a two-layer surface layer free of asbestos, which comprises press-fitting the asbestos-free base material through a sub-extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30517686A JPS63159244A (en) | 1986-12-23 | 1986-12-23 | Double-layer extrusion-formed silicate-lime base formed article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30517686A JPS63159244A (en) | 1986-12-23 | 1986-12-23 | Double-layer extrusion-formed silicate-lime base formed article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63159244A JPS63159244A (en) | 1988-07-02 |
| JPH0244683B2 true JPH0244683B2 (en) | 1990-10-04 |
Family
ID=17941972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30517686A Granted JPS63159244A (en) | 1986-12-23 | 1986-12-23 | Double-layer extrusion-formed silicate-lime base formed article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63159244A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342832A (en) * | 1979-07-05 | 1982-08-03 | Genentech, Inc. | Method of constructing a replicable cloning vehicle having quasi-synthetic genes |
| DD209260A1 (en) * | 1982-08-02 | 1984-04-25 | Gerhard Meister | TIPPING INDEPENDENT SPANNING WIRE LINEAL |
| JPS5947643A (en) * | 1982-09-13 | 1984-03-17 | Hitachi Ltd | Arithmetic processing system |
-
1986
- 1986-12-23 JP JP30517686A patent/JPS63159244A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63159244A (en) | 1988-07-02 |
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