JPS63128018A - Epoxy resin composition - Google Patents

Epoxy resin composition

Info

Publication number
JPS63128018A
JPS63128018A JP27610486A JP27610486A JPS63128018A JP S63128018 A JPS63128018 A JP S63128018A JP 27610486 A JP27610486 A JP 27610486A JP 27610486 A JP27610486 A JP 27610486A JP S63128018 A JPS63128018 A JP S63128018A
Authority
JP
Japan
Prior art keywords
epoxy resin
curing agent
component
resin composition
agent component
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.)
Granted
Application number
JP27610486A
Other languages
Japanese (ja)
Other versions
JPH0518324B2 (en
Inventor
Noriyuki Utakado
歌門 範幸
Koji Kitao
北尾 孝二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunstar Giken KK
Sunstar Engineering Inc
Original Assignee
Sunstar Giken KK
Sunstar Engineering Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sunstar Giken KK, Sunstar Engineering Inc filed Critical Sunstar Giken KK
Priority to JP27610486A priority Critical patent/JPS63128018A/en
Publication of JPS63128018A publication Critical patent/JPS63128018A/en
Publication of JPH0518324B2 publication Critical patent/JPH0518324B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)
  • Epoxy Resins (AREA)

Abstract

PURPOSE:To obtain the epoxy resin composition of two-pack type, capable of preventing drip during reaction and curing process, by adding a fixed amount of a polybutadiene containing a carboxyl terminal group to a polyamide resin of a curing agent component. CONSTITUTION:A composition comprising (A) an epoxy resin (e.g. bisphenol A type epoxy resin, etc.) as a main component and (B) a polyamide resin as a curing agent component is blended with (C) 0.5-5pts.wt. based on the component B of polybutadiene containing a carboxyl terminal group to give the aimed composition. Drip preventing effects can be further raised by adding preferably 3-8wt% silicic anhydride powder and/or aliphatic amide to one of the components A and B or both the components.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はエポキシ樹脂組成物、更に詳しくは、二液型の
エポキシ樹脂組成物において、その反応硬化過程におけ
るタレを防止、いわゆる揺変性を改良したエポキシ樹脂
組成物に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an epoxy resin composition, more specifically, to an epoxy resin composition with improved so-called thixotropy, which prevents sagging during the reaction curing process in a two-component epoxy resin composition. The present invention relates to a resin composition.

従来技術と解決すべき問題点 通常、経年後の建築構造物にあってタイルまたはモルタ
ル等が下地のコンクリートから剥離したり、亀裂が起っ
たりするが、この場合、その接着不良の浮いた部分や亀
裂部分に、主剤と硬化剤からなる二液型のエポキシ樹脂
組成物を注入乃至充填して修復する方法かとられている
Conventional technology and problems to be solved Usually, tiles or mortar in building structures after aging will peel off or crack from the underlying concrete. A method of repairing cracks and cracks by injecting or filling them with a two-component epoxy resin composition consisting of a base resin and a curing agent has been proposed.

この用途に使用するエポキシ樹脂組成物は反応硬化過程
において、発熱反応により組成物温度が40〜80℃の
如き高温となり、その結果、エポキシ樹脂がタレ落ちた
り、また壁面等の垂直面を流れ出すことがあり、浮き部
分への注入または亀裂の修復作業において、注入、充填
が不充分となったり、また修復部分近傍にエポキシ樹脂
が付着したりするなどの問題が起る。
During the reaction curing process, the epoxy resin composition used for this purpose reaches a high temperature of 40 to 80°C due to an exothermic reaction, and as a result, the epoxy resin may drip or flow down vertical surfaces such as walls. When injecting into floating areas or repairing cracks, problems may occur, such as insufficient injection or filling, or adhesion of epoxy resin near the repaired areas.

本発明者らは、かかる問題を解決するため鋭意検討を進
めた結果、硬化剤成分に両末端カルボキシル基を持つポ
リブタジェンを少量添加すれば、組成物の揺変性を所望
程度に改良しうることを見出し、本発明を完成するに至
った。
As a result of intensive studies to solve this problem, the present inventors found that the thixotropy of the composition can be improved to the desired degree by adding a small amount of polybutadiene having carboxyl groups at both ends to the curing agent component. This discovery led to the completion of the present invention.

すなわち、本発明は、エポキシ樹脂を主剤成分、ポリア
ミド樹脂を硬化剤成分とする二液型のエポキシ樹脂組成
物において、硬化剤成分に対して0.5〜5%(重量悌
、以下同様〕のカルボキシル基末端ポリブタジェンを添
加したことを特徴とするエポキシ樹脂組成物を提供する
ものである。
That is, the present invention provides a two-component epoxy resin composition containing an epoxy resin as a main component and a polyamide resin as a curing agent component. The present invention provides an epoxy resin composition characterized in that a carboxyl group-terminated polybutadiene is added.

本発明におけるエポキシ樹脂としては、通常のビスフェ
ノールA型、ウレタン変性ビスフェノールA型、臭素化
ビスフェノールA型、ノボラック型、脂肪族型、脂環族
型のエポキシ樹脂が使用されてよく、常温液状が好まし
い。固形のものについては液状のものと併用すればよい
As the epoxy resin in the present invention, normal bisphenol A type, urethane modified bisphenol A type, brominated bisphenol A type, novolak type, aliphatic type, and alicyclic type epoxy resin may be used, and a liquid state at room temperature is preferable. . Solid ones may be used in combination with liquid ones.

本発明におけるポリアミド樹脂とは、ダイマー酸に脂肪
族アミンを反応させたもので、従来よりエポキシ樹脂用
常温硬化剤として使用されているものを指称する。また
かかる硬化剤成分に加えて、公卸の脂肪族アミン、脂環
式ポリアミン、芳香族ポリアミン、アミンアダクト等を
併用してもよい。
The polyamide resin in the present invention refers to a resin obtained by reacting a dimer acid with an aliphatic amine, which has been conventionally used as a room temperature curing agent for epoxy resins. In addition to such curing agent components, publicly available aliphatic amines, alicyclic polyamines, aromatic polyamines, amine adducts, etc. may be used in combination.

本発明における硬化剤成分に添加するカルボキシル基末
端ポリブタジェンとは、式: %式% で示される1、2−結合からなるアタクチック1,2ポ
リブタジエンの両末端にカルボキシル基を持ったものを
指称し、数平均分子量1000.2000゜3000(
好ましくは1000)の市販品が使用されてよい。たと
えば、日本曹達社製のr Po1yPdC1000J、
r同2000J、「同3000Jがある。添加着は硬化
剤成分に対して、0.5〜5%、好ましくは1.0〜3
.0%の範囲で選定する。0.5多未満では、所望の改
質効果が得られず、また5%を越えてもそれ以上の効果
は期待できず、逆に粘度が高くなり、主剤と硬化剤の混
合作業上難点となる。
The carboxyl group-terminated polybutadiene added to the curing agent component in the present invention refers to an atactic 1,2 polybutadiene consisting of 1,2-bonds represented by the formula: % formula % having carboxyl groups at both ends, Number average molecular weight 1000.2000゜3000 (
Preferably 1000) commercially available products may be used. For example, rPolyPdC1000J manufactured by Nippon Soda Co., Ltd.
There are 2000J and 3000J.The additive amount is 0.5 to 5%, preferably 1.0 to 3%, based on the curing agent component.
.. Select within the range of 0%. If it is less than 0.5%, the desired modification effect cannot be obtained, and if it exceeds 5%, no further effect can be expected; on the contrary, the viscosity increases, which is a problem in mixing the base resin and curing agent. Become.

本発明に係るエポキシ樹脂組成物は、上述の主剤 ポキシ樹脂を主成分とし、ポリアミド樹脂および△ 要すれば他の硬化剤からなる硬化剤成分に所定量のカル
ボキシル基末端ポリブタジェンを添加したことで構成さ
れ、注入、充填における発熱時のタレが効率的に防止さ
れる。なお、主剤成分と硬化剤成分のいずれか一方また
は両方へ、そのグリース形状を維持せしめてタレ防止を
より高めるために、無水硅酸粉末や脂肪酸アマイドを適
量添加することができる。
The epoxy resin composition according to the present invention is composed of the above-mentioned main poxy resin as a main component, and a predetermined amount of carboxyl group-terminated polybutadiene added to a curing agent component consisting of a polyamide resin and, if necessary, other curing agents. This effectively prevents sagging during heat generation during pouring and filling. In addition, an appropriate amount of silicic anhydride powder or fatty acid amide can be added to either or both of the base agent component and the curing agent component in order to maintain the shape of the grease and further enhance prevention of sagging.

上記無水硫酸粉末とは、四塩化縫累の高温気相加水分解
で製造された超微粒子状の無水シリカであり、その表面
には適量のシラノールグループが存在しているものであ
って、通常、主剤と硬化剤成分のそれぞれに1〜10%
の範囲で用いる。望ましくは3〜8%である。かかる無
水it酸粉末は、日本アエロジル(株]からアエロジル
として市販されている。
The above-mentioned anhydrous sulfuric acid powder is ultrafine anhydrous silica produced by high-temperature gas-phase hydrolysis of tetrachloride, and has an appropriate amount of silanol groups on its surface. , 1 to 10% for each of the base agent and curing agent components.
Used within the range of. It is preferably 3 to 8%. Such an it acid anhydride powder is commercially available as Aerosil from Nippon Aerosil Co., Ltd.

上記脂肪酸アマイドとは、脂肪酸(ステアリン酸、リシ
ノール酸、オレイン酸、オキシステアリン酸、エルカ酸
、ラウリン酸、エチレンビスステアリン酸、エチレンビ
スオレイン酸、アルカン酸△ ントリアミン、トリエチレンテトラミン、ポリエチレン
ポリアミンなど)との反応物を指称し、特にステアリン
酸またはアルカン酸とジエチレンジアミンを反応させた
分子量500〜1500のものが好ましい。使用量は通
常、主剤と硬化剤成分のそれぞれに1〜6%の範囲で選
定する。
The above fatty acid amide refers to fatty acids (stearic acid, ricinoleic acid, oleic acid, oxystearic acid, erucic acid, lauric acid, ethylenebisstearic acid, ethylenebisoleic acid, triamine alkanoic acid, triethylenetetramine, polyethylenepolyamine, etc.) It refers to a reaction product with stearic acid or an alkanoic acid and diethylenediamine, and a product having a molecular weight of 500 to 1500 is particularly preferred. The amounts used are usually selected within the range of 1 to 6% for each of the base agent and curing agent components.

上記無水石を酸粉末および/または脂肪酸アマイドは、
本発明のエポキシ樹脂組成物の揺変性を改良することが
できるが、カルボキシル基末端ポリブタジェンを添加す
ると、その反応温度の上昇に伴う該組成物のタレを抑制
するのに望ましい。
The above anhydrite is mixed with acid powder and/or fatty acid amide.
Although the thixotropy of the epoxy resin composition of the present invention can be improved, the addition of carboxyl-terminated polybutadiene is desirable for suppressing sag of the composition as the reaction temperature increases.

更に、必要に応じて通常の可塑剤、希釈剤、増量剤等を
加えてもよい。
Furthermore, if necessary, ordinary plasticizers, diluents, fillers, etc. may be added.

次に実施例および比較例を挙げて本発明をより具体的に
説明する。
Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples.

実施例1 ビスフェノールA型エポキシ樹脂(シェル化学社製、エ
ピコート828)     ・・団・100無水鈍酸粉
末(日本アエロジル社製、アエロジルン       
       ・・壷・・・  5脂肪酸アマイド(補
水化成社製、デスバロン6900−20X)     
         ・・・・・・ 、 2を混合後、ペ
イントロールを通してグリース状の主剤成分を調製する
Example 1 Bisphenol A type epoxy resin (manufactured by Shell Chemical Co., Ltd., Epicoat 828) ... Group 100 anhydrous blunt acid powder (manufactured by Nippon Aerosil Co., Ltd., Aerosiln)
・Bottle... 5 fatty acid amide (manufactured by Hosui Kasei Co., Ltd., Desbaron 6900-20X)
...... After mixing 2, pass it through a paint roll to prepare a grease-like base ingredient.

硬化剤成分             重量部ポリアミ
ド樹脂(富士化成工業社製、トーマイド245LP) 
           ・・・・・・ 88脂肪族変性
ポリアミン(大日本インキ化学工業社製、ラッカマイト
WH108)   ’・・・・・・ 12無水石↓酸粉
末(アエロジル〕   ・・・・・・  6脂肪酸アマ
イド(デスバロン6900−20x〕        
        ・・・・・・  2カルボキシル基末
端ポリブタジエン(日本曹達社製、Po1y  PdC
1000)     ・−=   2を混合後、ペイン
トロールを通してグリース状の硬化剤成分を調製する。
Hardening agent component Weight part Polyamide resin (manufactured by Fuji Kasei Kogyo Co., Ltd., Tomide 245LP)
・・・・・・ 88 Aliphatic modified polyamine (manufactured by Dainippon Ink and Chemicals Co., Ltd., Laccamite WH108) '・・・・・・ 12 Anhydrite ↓ acid powder (Aerosil) ・・・・・・ 6 Fatty acid amide (Desbaron) 6900-20x]
・・・・・・ 2 carboxyl group-terminated polybutadiene (manufactured by Nippon Soda Co., Ltd., Po1y PdC
1000) ·-= After mixing 2, pass through a paint roll to prepare a grease-like curing agent component.

実施例2 主剤成分:実施例1と同じ。Example 2 Main ingredient: Same as Example 1.

硬化剤成分:実施例1の硬化剤成分において、脂肪酸ア
マイド2部を省略する以外は同様にして調製。
Curing agent component: Prepared in the same manner as in Example 1 except that 2 parts of fatty acid amide was omitted.

比較例1 主剤成分:実施例1と同じ。Comparative example 1 Main ingredient: Same as Example 1.

硬化剤成分:実施例1の硬化剤成分において、カルボキ
シル基末端ポリブタジェン2部の代わりにモンモリロナ
イトの有機塩基複合体(白石カルシウム社製、オルベン
)2部を用いる以外は同様にして調製。
Curing agent component: Prepared in the same manner as in Example 1 except that 2 parts of an organic base complex of montmorillonite (manufactured by Shiraishi Calcium Co., Ltd., Olben) was used instead of 2 parts of the carboxyl group-terminated polybutadiene.

くタレ試験評価〉 主剤成分660A’と硬化剤成分330gを混合してエ
ポキシ樹脂組成物を得、これを20℃で40分放置後グ
リースガンに充填する。スレート板と透明アクリル板を
間隔5flとなるように重ね合せ、これらを垂直に立て
た状態に保持し、アクリル板に設けた5ffφの穴から
グリースガンよりエポキシ樹脂組成物50gを注入する
。1日放置して硬化させた後、透明なアクリル板を通し
て中の硬化物形状を観察する。垂直面において注入穴を
中心にその上下に硬化物が延びた距離の割合(上/下)
をもって評価した。結果を表1に示す。
Sagging test evaluation> 660 A' of the base component and 330 g of the curing agent component were mixed to obtain an epoxy resin composition, which was left to stand at 20° C. for 40 minutes and then filled into a grease gun. A slate board and a transparent acrylic board were placed one on top of the other with a spacing of 5fl, held vertically, and 50g of an epoxy resin composition was injected from a grease gun through a 5ffφ hole provided in the acrylic board. After being left to cure for one day, the shape of the cured product inside was observed through a transparent acrylic plate. Ratio of the distance that the cured material extends above and below the injection hole in the vertical plane (top/bottom)
It was evaluated using The results are shown in Table 1.

表1 実施例1,2では、注入穴を中心としてはy同心円状に
注入されており、これは反応硬化過程において樹脂のタ
レ落ちが良好に防止されていることを示している。
Table 1 In Examples 1 and 2, the resin was injected in a y-concentric circle with the injection hole at the center, which indicates that dripping of the resin was well prevented during the reaction curing process.

Claims (1)

【特許請求の範囲】 1、エポキシ樹脂を主剤成分、ポリアミド樹脂を硬化剤
成分とする二液型のエポキシ樹脂組成物において、硬化
剤成分に対して0.5〜5重量%のカルボキシル基末端
ポリブタジエンを添加したことを特徴とするエポキシ樹
脂組成物。 2、主剤成分と硬化剤成分のいずれか一方または両方に
、無水硅酸粉末および/または脂肪酸アマイドを添加し
た前記第1項記載の組成物。
[Scope of Claims] 1. In a two-component epoxy resin composition containing an epoxy resin as a main component and a polyamide resin as a curing agent component, 0.5 to 5% by weight of carboxyl group-terminated polybutadiene based on the curing agent component. An epoxy resin composition characterized by adding. 2. The composition according to item 1 above, wherein silicic anhydride powder and/or fatty acid amide is added to either or both of the base component and the curing agent component.
JP27610486A 1986-11-19 1986-11-19 Epoxy resin composition Granted JPS63128018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27610486A JPS63128018A (en) 1986-11-19 1986-11-19 Epoxy resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27610486A JPS63128018A (en) 1986-11-19 1986-11-19 Epoxy resin composition

Publications (2)

Publication Number Publication Date
JPS63128018A true JPS63128018A (en) 1988-05-31
JPH0518324B2 JPH0518324B2 (en) 1993-03-11

Family

ID=17564855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27610486A Granted JPS63128018A (en) 1986-11-19 1986-11-19 Epoxy resin composition

Country Status (1)

Country Link
JP (1) JPS63128018A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03172343A (en) * 1989-11-30 1991-07-25 Sumitomo Rubber Ind Ltd Epoxy resin composition
JPH05156127A (en) * 1991-05-15 1993-06-22 Somar Corp Thixotropic epoxy resin composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166225A (en) * 1980-05-27 1981-12-21 Hitachi Ltd Epoxy resin composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166225A (en) * 1980-05-27 1981-12-21 Hitachi Ltd Epoxy resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03172343A (en) * 1989-11-30 1991-07-25 Sumitomo Rubber Ind Ltd Epoxy resin composition
JPH05156127A (en) * 1991-05-15 1993-06-22 Somar Corp Thixotropic epoxy resin composition

Also Published As

Publication number Publication date
JPH0518324B2 (en) 1993-03-11

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