JPS6341941B2 - - Google Patents
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- Publication number
- JPS6341941B2 JPS6341941B2 JP59121291A JP12129184A JPS6341941B2 JP S6341941 B2 JPS6341941 B2 JP S6341941B2 JP 59121291 A JP59121291 A JP 59121291A JP 12129184 A JP12129184 A JP 12129184A JP S6341941 B2 JPS6341941 B2 JP S6341941B2
- Authority
- JP
- Japan
- Prior art keywords
- foam
- phenolic resin
- parts
- inorganic powder
- gypsum
- 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
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
【発明の詳細な説明】
この発明はフエノール樹脂発泡体の製造方法に
関するものであり、さらに詳しくは無機質粉末を
高充填した高発泡フエノール樹脂発泡体の製造方
法に関するものであつて、その目的とするところ
は特に機械的性質に優れ、耐炎性ならびに耐熱性
を有するフエノール樹脂発泡体の製造方法を提供
することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a phenolic resin foam, and more particularly to a method for producing a highly expanded phenolic resin foam highly filled with inorganic powder. The object of the present invention is to provide a method for producing a phenolic resin foam having particularly excellent mechanical properties, flame resistance, and heat resistance.
従来、液状レゾールタイプフエノール樹脂発泡
体は、通常、フエノール、クレゾール、キシレノ
ール、カテコール等のフエノール類とホルムアル
デヒド、アセトアルデヒド等のアルデヒド類とを
塩基性触媒の存在下で反応させて得られる液状レ
ゾールタイプフエノール樹脂に整泡剤、発泡剤、
硬化剤を混合して発泡硬化させることにより製造
されている。この方法によつて得られたフエノー
ル樹脂発泡体は耐炎性ならびに耐熱性等におい
て、他のプラスチツク発泡体よりも優れた性質を
有し、近時化学プラント、建材用等の不燃性の断
熱材として注目されている。 Conventionally, liquid resol type phenolic resin foams are usually liquid resol type phenols obtained by reacting phenols such as phenol, cresol, xylenol, and catechol with aldehydes such as formaldehyde and acetaldehyde in the presence of a basic catalyst. Resin with foam stabilizer, foaming agent,
It is manufactured by mixing a curing agent and foaming and curing the mixture. The phenolic resin foam obtained by this method has properties superior to other plastic foams in terms of flame resistance and heat resistance, and has recently been used as a nonflammable heat insulating material for chemical plants, building materials, etc. Attention has been paid.
しかしながら、前記方法によつて得られたフエ
ノール樹脂発泡体は火焔に晒らされると、炭化層
が容易に形成され、発煙及び発炎性が非常に低い
が、発泡体の気泡構造が完全に炭化、かつ灰化し
気泡の骨格が崩壊するという欠点があり、完全な
不燃性断熱材としての実用性能を有していない。 However, when the phenolic resin foam obtained by the above method is exposed to flame, a carbonized layer is easily formed, and although the smoke and flammability are very low, the cell structure of the foam is completely destroyed. It has the disadvantage that it carbonizes and ashes, causing the bubble skeleton to collapse, so it does not have practical performance as a completely nonflammable heat insulating material.
上記フエノール樹脂発泡体の欠点を改良するた
めに、無機質充填材を添加する方法が提案されて
いるがフエノール樹脂の縮重合および発泡過程に
影響を及ぼし、硬化反応を阻害し、強度低下が顕
著であり、また樹脂発泡体成形材料組成物の発泡
時の粘度が著しく上昇し、流動性が極めて悪く実
用可能な強度を有する発泡体を形成することは極
めて困難である。 In order to improve the above-mentioned drawbacks of phenolic resin foam, a method of adding inorganic fillers has been proposed, but it affects the condensation polymerization and foaming process of phenolic resin, inhibits the curing reaction, and causes a noticeable decrease in strength. In addition, the viscosity of the resin foam molding material composition increases significantly during foaming, and the fluidity is extremely poor, making it extremely difficult to form a foam with a practically usable strength.
この発明者らは上記実情に鑑み、優れた機械的
性質を有し、かつ火焔に晒らされた場合にも発泡
体の気泡構造が灰化することなく、気泡の骨格が
崩壊しない耐炎性に優れたフエノール樹脂発泡体
を経済的に製造する方法を開発すべく鋭意研究し
た結果、石膏および結晶水含有無機化合物から成
る無機粉末の存在下に液状レゾールタイプフエノ
ール樹脂を発泡硬化させることにより、機械的性
質に優れ耐炎性を有する経済的な無機質粉末高充
填高発泡フエノール樹脂発泡体が得られることを
見出し、この知見にもとづいて本発明を完成する
に至つたものである。 In view of the above circumstances, the inventors developed a foam that has excellent mechanical properties and is flame resistant so that the cell structure of the foam does not turn into ash even when exposed to flames, and the cell skeleton does not collapse. As a result of intensive research to develop an economical method for manufacturing superior phenolic resin foams, a mechanical process was developed in which a liquid resol-type phenolic resin was foam-cured in the presence of an inorganic powder consisting of gypsum and an inorganic compound containing water of crystallization. The inventors have discovered that it is possible to obtain an economical highly expanded phenolic resin foam with high filling of inorganic powder and excellent flame resistance, and based on this knowledge, the present invention has been completed.
この発明に使用する液状レゾールタイプフエノ
ール樹脂は、フエノール、クレゾール等のフエノ
ール類とホルムアルデヒド、アセトアルデヒド等
のアルデヒド類との塩基性触媒の存在下での縮重
合反応によつて得られる液状のフエノール樹脂で
あつて、公知の製造方法によつて製造される。液
状のレゾールタイプ樹脂であれば適宜に使用でき
るが、発泡体を製造する操作性の点から25℃での
粘度が50〜1500cps程度のものが好適である。 The liquid resol type phenolic resin used in this invention is a liquid phenolic resin obtained by a polycondensation reaction between phenols such as phenol and cresol and aldehydes such as formaldehyde and acetaldehyde in the presence of a basic catalyst. It is manufactured by a known manufacturing method. Any liquid resol type resin can be used, but from the viewpoint of operability in producing a foam, one with a viscosity of about 50 to 1500 cps at 25°C is preferred.
この発明に使用する酸性硬化剤は、硫酸、リン
酸等の無機酸、トルエンスルホン酸、フエノール
スルホン酸等の有機酸、これら無機酸と有機酸と
の混合物等、従来の公知の酸を使用する。 As the acidic curing agent used in this invention, conventionally known acids such as inorganic acids such as sulfuric acid and phosphoric acid, organic acids such as toluenesulfonic acid and phenolsulfonic acid, and mixtures of these inorganic acids and organic acids are used. .
整泡剤は、シリコーン系界面活性剤やソルビタ
ン脂肪酸エステル、ポリオキシエチレンアルキル
フエニルエーテル等のノニオン系界面活性剤等従
来の公知の整泡剤を用いることができ、これらの
併用使用も可能である。 As the foam stabilizer, conventionally known foam stabilizers such as silicone surfactants, sorbitan fatty acid esters, nonionic surfactants such as polyoxyethylene alkyl phenyl ethers can be used, and these can also be used in combination. be.
発泡剤は、脂肪族炭化水素およびそれのハロゲ
ン誘導体等の低沸点の揮発性有機化合物を使用す
る。 As blowing agents, low boiling volatile organic compounds such as aliphatic hydrocarbons and their halogen derivatives are used.
特に、ハロゲン化炭化水素が断熱性能、フオー
ム外観上の点から好適である。 In particular, halogenated hydrocarbons are preferred from the viewpoint of heat insulation performance and foam appearance.
この発明に使用する無機質粉末を成す石膏は、
無水石膏、焼石膏（半水セツコウ）等の中で水和
反応して凝結硬化する石膏が好ましく、α型焼石
膏が好適である。この石膏は、例えばリン酸製造
に際しての副産物として得られる副産セツコウを
利用できることから、化学工業上の副産物の再利
用ということで、かなりの経済的利点がある。 The gypsum that constitutes the inorganic powder used in this invention is
Gypsum that undergoes a hydration reaction to set and harden in anhydrous gypsum, calcined gypsum (hanhydrous gypsum), etc. is preferable, and α-type calcined gypsum is preferable. This gypsum has a considerable economic advantage in that it allows the use of by-products obtained as by-products, for example, in the production of phosphoric acid, allowing for the reuse of chemical industry by-products.
この発明に使用する無機質粉末を成す結晶水含
有無機化合物は、水酸化アルミニウム、水酸化カ
ルシウム、硼酸、炭酸カルシウム、カオリンクレ
ー、硼砂、硼酸亜鉛等があり、特に水酸化アルミ
ニウムおよび硼砂はそれぞれ約35％、47％もの高
いモル当りの結合水量を有する結晶水含有化合物
であり、加熱時に結晶水が激しく脱水分解する
際、大量の熱を吸収する作用を有するので好適で
ある。 Inorganic compounds containing crystal water constituting the inorganic powder used in this invention include aluminum hydroxide, calcium hydroxide, boric acid, calcium carbonate, kaolin clay, borax, zinc borate, etc. In particular, aluminum hydroxide and borax each have a It is a crystal water-containing compound that has a high amount of bound water per mole of 47%, and is suitable because it has the ability to absorb a large amount of heat when crystal water is violently dehydrated and decomposed during heating.
前記無機質粉末の粒度は発泡特性および物性に
大きな影響を及ぼすものであり、この発明に使用
する無機質粉末は200〜325メツシユより粒径が小
であり、特に325メツシユ以下が好ましい。 The particle size of the inorganic powder has a great influence on the foaming characteristics and physical properties, and the inorganic powder used in the present invention has a particle size smaller than 200 to 325 mesh, particularly preferably 325 mesh or less.
この発明に使用する無機質粉末の石膏と結晶水
含有無機化合物の混合比率は石膏100重量部に対
して結晶水含有無機化合物10ないし500重量部が
好ましく、石膏がこの範囲より多いと難燃性が低
下し、また少ないと樹脂発泡体成形材料組成物の
粘度上昇を招き、発泡特性が低下するとともに生
成したフエノール樹脂発泡体の機械的性質が低下
する。 The mixing ratio of the inorganic powder containing gypsum and the inorganic compound containing water of crystallization used in this invention is preferably 10 to 500 parts by weight of the inorganic compound containing water of crystallization per 100 parts by weight of gypsum. If it is too low, the viscosity of the resin foam molding material composition will increase, and the foaming properties will deteriorate, as well as the mechanical properties of the produced phenolic resin foam.
この発明に使用する石膏および結晶水含有無機
化合物から成る無機質粉末はフエノール樹脂100
重量部に対して20ないし120重量部配合して含有
させることが好ましく、特に35〜80重量部が好適
であり、20重量部以下では耐炎性が不十分であ
り、120重量部以上では発泡体の機械的強度が低
下する。 The inorganic powder made of gypsum and an inorganic compound containing water of crystallization used in this invention is phenolic resin 100%
It is preferable to contain 20 to 120 parts by weight, especially 35 to 80 parts by weight.If it is less than 20 parts by weight, the flame resistance will be insufficient, and if it is more than 120 parts by weight, the foam will mechanical strength decreases.
この発明によつて無機質粉末高充填フエノール
樹脂発泡体を製造するに際しては、先に所定の混
合比率で配合した無機質粉末をフエノール樹脂に
予め混合しても良く、あるいは各成分を混合する
際に同時に混合しても良い。 When producing a phenolic resin foam with high filling of inorganic powder according to the present invention, the inorganic powder blended in a predetermined mixing ratio may be mixed in advance with the phenolic resin, or simultaneously when mixing each component. May be mixed.
この発明によれば、無機質粉末を成す石膏はレ
ゾールタイプフエノール樹脂の縮重合反応の過程
で発生する水と水和反応して凝結硬化するので、
無機質粉末を配合するこの発明方法においては、
通常、知見される無機質粉末の高充填によるフエ
ノール樹脂発泡体の実用上不可能となるような著
しい強度低下現象の発生が未然に防止され、か
つ、この発明に使用する無機質粉末はレゾールタ
イプフエノール樹脂発泡組成分の縮重合反応およ
び発泡硬化過程に悪影響を及ぼすことがなくまた
粘度上昇などによる発泡時の流動性および操作性
を損うことがないため、無機質粉末を液状レゾー
ルタイプフエノール樹脂発泡組成物に高充填する
ことが可能となり、優れた機械的性質を有する無
機質粉末高充填高発泡フエノール樹脂発泡体を得
ることができる。 According to this invention, gypsum, which is an inorganic powder, undergoes a hydration reaction with water generated in the process of polycondensation reaction of resol type phenolic resin and hardens by condensation.
In this invention method of blending inorganic powder,
It is possible to prevent the occurrence of a phenomenon in which the strength of the phenolic resin foam becomes practically impossible due to the high loading of inorganic powder, which is usually observed, and the inorganic powder used in this invention is a resol type phenolic resin. The inorganic powder is used as a liquid resol type phenolic resin foam composition because it does not have any adverse effect on the polycondensation reaction and foam curing process of the foaming composition, and does not impair fluidity and operability during foaming due to increased viscosity. This makes it possible to obtain a highly expanded phenolic resin foam that is highly filled with inorganic powder and has excellent mechanical properties.
この発明によれば、結晶水含有無機化合物に石
膏を配合して成る無機質粉末の使用による上記に
説明した効果により、無機質粉末の高充填が可能
となり、製造コストを低減できると共に燃焼時の
発熱量を大幅に減少させ、耐炎性、耐熱性を向上
させることが可能であり、さらに無機質粉末を成
す石膏がレゾールタイプフエノール樹脂の縮重合
反応の過程で発生する水と水和凝結硬化し、結晶
水含有化合物となり、この水和石膏は無機質粉末
の結晶水含有無機化合物と同様な特長のある作
用、すなわち加熱時に脱水分解して不燃性物質を
生成すると共に、その際大量の熱の吸収を伴うこ
とにより、フエノール樹脂発泡体の温度上昇を抑
制し、不燃化を促す作用を有する。 According to this invention, due to the above-described effects of using an inorganic powder made by blending gypsum with an inorganic compound containing water of crystallization, it becomes possible to fill a high amount of inorganic powder, thereby reducing manufacturing costs and producing a calorific value during combustion. In addition, gypsum, which is an inorganic powder, hydrates and hardens with water generated during the condensation reaction of resol type phenolic resin, resulting in crystallization water. This hydrated gypsum has the same characteristic action as an inorganic compound containing water of crystallization in an inorganic powder, that is, it dehydrates and decomposes when heated to produce a nonflammable substance, and at the same time absorbs a large amount of heat. This has the effect of suppressing the temperature rise of the phenolic resin foam and promoting nonflammability.
上記した石膏および結晶水含有無機化合物から
成る無機質粉末の作用効果は、フエノール樹脂発
泡体の灰化および気泡の骨格の崩壊を防止し、耐
炎性および耐熱性を増大ならしめる。すなわち、
この発明によれば、石膏および結晶含有無機化合
物から成る無機質粉末の高充填と、その脱水分解
による不燃物の生成と、吸熱作用との相乗効果に
より、極めて優れた耐炎性を有するフエノール樹
脂発泡体を経済的に製造することができる。 The effects of the above-described inorganic powder consisting of gypsum and an inorganic compound containing water of crystallization are to prevent the phenolic resin foam from ashing and collapse of the cell skeleton, and to increase flame resistance and heat resistance. That is,
According to this invention, the phenolic resin foam has extremely excellent flame resistance due to the synergistic effect of the high filling of inorganic powder made of gypsum and crystal-containing inorganic compounds, the generation of nonflammable substances through dehydration and decomposition, and the endothermic action. can be manufactured economically.
次に、実施例および比較例によつて、この発明
をさらに詳しく説明する。 Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples.
各実施例および比較例中の部は特に記載がない
かぎり重量によるものである。 Parts in each Example and Comparative Example are by weight unless otherwise specified.
実施例 １
液状レゾールタイプフエノール樹脂（粘度
1200cps（25℃））100部にトウイン80（花王アトラ
ス(株)製、ノニオン系界面活性剤）３部および
SH193（トーレシリコーン(株)製、シリコーン系界
面活性剤）0.5部、トリクロロトリフルオロエタ
ン15部焼石膏（α型半水セツコウ）100部および
水酸化アルミニウム粉末ハイジライトＨ−43M
（昭和軽金属(株)製、325メツシユ以下）100部から
成る無機質粉末40部を加えて約２分間撹拌してプ
レミツクスを調製した後、フエノールスルホン酸
（有効成分70％）を25部加えて撹拌混合してフエ
ノール樹脂発泡体を得た。Example 1 Liquid resol type phenolic resin (viscosity
1200cps (25℃)) 3 parts Towin 80 (manufactured by Kao Atlas Co., Ltd., nonionic surfactant) and
0.5 parts of SH193 (manufactured by Toray Silicone Co., Ltd., silicone surfactant), 15 parts of trichlorotrifluoroethane, 100 parts of calcined gypsum (α-type hemihydrate), and aluminum hydroxide powder Hygilite H-43M
(manufactured by Showa Light Metal Co., Ltd., 325 mesh or less) Add 40 parts of inorganic powder consisting of 100 parts and stir for about 2 minutes to prepare a premix, then add 25 parts of phenolsulfonic acid (active ingredient 70%) and stir A phenolic resin foam was obtained by mixing.
この発泡体を24時間室温放置した後、
JISA9514に基づいて物性測定した結果、密度は
38Kg／m3、圧縮強さは1.0Kg／cm2であつた。ま
たこの発泡体をブンゼンバーナー火焔（900〜
1000℃）に60秒間晒らしたが、この発泡体には灰
化および気泡骨格の崩壊現象は認められなかつ
た。 After leaving this foam at room temperature for 24 hours,
As a result of physical property measurement based on JISA9514, the density is
The compressive strength was 38Kg/m 3 and 1.0Kg/cm 2 . This foam can also be used in a Bunsen burner flame (900 ~
(1000°C) for 60 seconds, no ashing or collapse of the cell skeleton was observed in this foam.
比較例
実施例１において、無機質粉末として石膏を未
配合したハイジライトＨ−43Mのみを40部加えて
調整したプレミツクス液にフエノールスルホン酸
（有効成分70％）25部を加えて撹拌混合してフエ
ノール樹脂発泡体を得た。Comparative Example In Example 1, 25 parts of phenolsulfonic acid (active ingredient 70%) was added to the premix solution prepared by adding only 40 parts of Hygilite H-43M, which does not contain gypsum as an inorganic powder, and mixed with stirring to prepare phenol. A resin foam was obtained.
この発泡体を実施例１と同様に試験した結果、
この発泡体には、灰化および気泡の骨格の崩壊は
認められなかつたが、密度は41Kg／m3、圧縮強さ
は0.7Kg／cm2であり、樹脂発泡体成形材料組成
物の流動性は極めて悪かつた。 As a result of testing this foam in the same manner as in Example 1,
Although no ashing or collapse of the cell skeleton was observed in this foam, the density was 41Kg/m 3 and the compressive strength was 0.7Kg/cm 2 , and the fluidity of the resin foam molding material composition was was extremely bad.
実施例 ２
実施例１において、無機質粉末として焼石膏
100部およびハイジライトＨ−43M 17部から成る
ものを70部、トリクロロトリフルオロエタンを20
部として撹拌混合して発泡硬化させフエノール樹
脂発泡体を得た。Example 2 In Example 1, calcined gypsum was used as the inorganic powder.
100 parts and 70 parts of Hygilite H-43M and 20 parts of trichlorotrifluoroethane.
A phenolic resin foam was obtained by stirring and mixing in batches and foaming and curing.
この発泡体を実施例１と同様に試験した結果、
密度は40Kg／m3、圧縮強さは1.1Kg／cm2であり、
この発泡体には灰化および気泡骨格の崩壊現象は
認められなかつた。 As a result of testing this foam in the same manner as in Example 1,
The density is 40Kg/m 3 and the compressive strength is 1.1Kg/cm 2 .
No ashing or collapse of the cell skeleton was observed in this foam.
実施例 ３
液状レゾールタイプフエノール樹脂（粘度
800cps（25℃））100部にトウイン80およびSH193
各々３部、0.1部、焼石膏（α型半水セツコウ）
100部およびハイジライトＨ−43M 250部から成
る無機質粉末35部、トリクロロトリフルオロエタ
ン10部を加えて、撹拌してプレミツクスを調整し
た後、フエノールスルホン酸（有効成分70％）を
25部加えて撹拌混合してフエノール樹脂発泡体を
得た。この発泡体を実施例１と同様に試験した結
果、密度は49.5Kg／m3、圧縮強さは、1.5Kg／
cm2であり、この発泡体には灰化および気泡骨格の
崩壊現象は認められなかつた。Example 3 Liquid resol type phenolic resin (viscosity
800cps (25°C)) 100 copies with tow 80 and SH193
3 parts each, 0.1 part, calcined gypsum (α type semi-hydrated plaster)
After adding 100 parts of inorganic powder and 250 parts of Hygilite H-43M and 10 parts of trichlorotrifluoroethane and stirring to prepare a premix, phenolsulfonic acid (70% active ingredient) was added.
25 parts were added and mixed with stirring to obtain a phenolic resin foam. As a result of testing this foam in the same manner as in Example 1, the density was 49.5Kg/m 3 and the compressive strength was 1.5Kg/m 3 .
cm2 , and no ashing or collapse of the cell skeleton was observed in this foam.
実施例 ４
実施例３において、無機質粉末として焼石膏
（α型半水セツコウ）100部およびハイジライトＨ
−43M 11部から成るものを100部、トリクロロト
リフルオロエタン20部を加えて調整したプレミツ
クス液にフエノールスルホン酸（有効成分70％）
25部を加えて撹拌混合してフエノール樹脂発泡体
を得た。Example 4 In Example 3, 100 parts of calcined gypsum (α-type hemihydrate) and Hygilite H were used as inorganic powders.
Phenolsulfonic acid (70% active ingredient) is added to a premix solution prepared by adding 100 parts of -43M 11 parts and 20 parts of trichlorotrifluoroethane.
25 parts were added and mixed with stirring to obtain a phenolic resin foam.
この発泡体を実施例１と同様に試験した結果、
密度は52Kg／m3で1.35Kg／cm2であり、この発泡
体には灰化および気泡骨格の崩壊現象は認められ
なかつた。 As a result of testing this foam in the same manner as in Example 1,
The density was 52Kg/m 3 and 1.35Kg/cm 2 , and no ashing or collapse of the cell skeleton was observed in this foam.
実施例 ５
実施例３において、無機質粉末として焼石膏
（α型半水セツコウ）100部およびハイジライトＨ
−43M 20部から成るものを80部、トリクロロト
リフルオロエタン17部を加えて調整したプレミツ
クス液にフエノールスルホ酸（有効成分70％）25
部を加えて撹拌混合してフエノール樹脂発泡体を
得た。Example 5 In Example 3, 100 parts of calcined gypsum (α-type hemihydrate) and Hygilite H were used as inorganic powders.
Phenolsulfonic acid (active ingredient 70%) 25% to a premix solution prepared by adding 80 parts of -43M 20 parts and 17 parts of trichlorotrifluoroethane.
1 part and stirred and mixed to obtain a phenolic resin foam.
この発泡体を実施例１と同様に試験した結果、
密度は48Kg／m3、圧縮強さは1.45Kg／cm2であ
り、この発泡体には灰化および気泡骨格の崩壊現
象は認められなかつた。 As a result of testing this foam in the same manner as in Example 1,
The density was 48 Kg/m 3 and the compressive strength was 1.45 Kg/cm 2 , and no ashing or collapse of the cell skeleton was observed in this foam.
実施例 ６
実施例３において、無機質粉末として焼石膏
（α型半水セツコウ）100部および硼砂25部から成
るものを80部、トリクロロトリフルオロエタン20
部を加えて調整したプレミツクス液にフエノール
スルホン酸（有効成分70％）30部を加えて撹拌混
合してフエノール樹脂発泡体を得た。Example 6 In Example 3, 80 parts of inorganic powder consisting of 100 parts of calcined gypsum (α-type hemihydrate) and 25 parts of borax, and 20 parts of trichlorotrifluoroethane were used.
30 parts of phenolsulfonic acid (active ingredient 70%) was added to the prepared premix liquid and mixed with stirring to obtain a phenolic resin foam.
この発泡体を実施例１と同様に試験した結果、
密度は51Kg／m3で圧縮強さは1.5Kg／cm2であり、
この発泡体には灰化および気泡骨格の崩壊現象は
認められなかつた。 As a result of testing this foam in the same manner as in Example 1,
The density is 51Kg/m 3 and the compressive strength is 1.5Kg/cm 2 .
No ashing or collapse of the cell skeleton was observed in this foam.
以上に述べたように、この発明によれば、優れ
た機械的性質を有し、かつ火焔に晒らされて発泡
体の気泡構造が灰化することがなく、気泡の骨格
が崩壊しない耐炎性に優れたフエノール樹脂発泡
体を経済的に製造することができる。 As described above, according to the present invention, the foam has excellent mechanical properties, the cell structure of the foam does not turn into ash when exposed to flames, and the cell structure does not collapse. It is possible to economically produce a phenolic resin foam with excellent properties.
Claims (1)
化剤、整泡剤、発泡剤からフエノール樹脂発泡体
を製造する方法において、前記フエノール樹脂
100重量部に対して石膏と結晶水含有無機化合物
を100：10〜500で混合して成る無機質粉末20乃至
120重量部を配合して発泡硬化させることを特徴
とするフエノール樹脂発泡体の製造方法。1. In a method for producing a phenolic resin foam from a liquid resol type phenolic resin, an acidic curing agent, a foam stabilizer, and a foaming agent, the phenolic resin
An inorganic powder made by mixing gypsum and an inorganic compound containing water of crystallization in a ratio of 100:10 to 500 to 100 parts by weight.
A method for producing a phenolic resin foam, which comprises blending 120 parts by weight and foaming and curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12129184A JPS61243A (en) | 1984-06-13 | 1984-06-13 | Method for producing phenolic resin foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12129184A JPS61243A (en) | 1984-06-13 | 1984-06-13 | Method for producing phenolic resin foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61243A JPS61243A (en) | 1986-01-06 |
| JPS6341941B2 true JPS6341941B2 (en) | 1988-08-19 |
Family
ID=14807620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12129184A Granted JPS61243A (en) | 1984-06-13 | 1984-06-13 | Method for producing phenolic resin foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61243A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11326036B2 (en) | 2018-04-27 | 2022-05-10 | Asahi Kasei Construction Materials Corporation | Flame-retardant phenolic resin foam |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5318975U (en) * | 1976-07-26 | 1978-02-17 | ||
| JPS5434424A (en) * | 1977-08-15 | 1979-03-13 | Kobe Steel Ltd | Production of steel fiber reinforcing material |
| CA1150450A (en) * | 1978-09-14 | 1983-07-19 | Company 'a' (Foam) Limited | Foamed plastics materials |
| JPS55765A (en) * | 1979-04-06 | 1980-01-07 | Takashi Ishikawa | Fire and heat resistant phenolic resin foam |
| US4419460A (en) * | 1980-12-22 | 1983-12-06 | Monsanto Company | Phenolic foams |
| JPS58149939A (en) * | 1982-03-01 | 1983-09-06 | Sumitomo Bakelite Co Ltd | Fresin composition |
-
1984
- 1984-06-13 JP JP12129184A patent/JPS61243A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61243A (en) | 1986-01-06 |
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