Modified epoxy resin composite material of prereacted material of epoxy-terminated silicone oil and preparation method and application thereof

An epoxy-terminated silicone oil, epoxy resin technology, applied in epoxy resin coatings, novolac epoxy resin adhesives, epoxy resin adhesives, etc., can solve the problem of poor mechanical properties and thermal properties, compatibility The problems such as poor performance and incomplete bonding of epoxy-terminated silicone oil to achieve the effect of increasing toughness and thermal stability, good compatibility and high heat resistance

Inactive Publication Date: 2010-08-04
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, epoxy-terminated silicone oil-modified epoxy resin composite materials mainly adopt the method of direct blending. Although the operation is simple, the compatibility is not good, and phase separation occurs, and the epoxy-terminated silicone oil cannot be completely bonded to the resin. On the substrate, the mechanical and thermal properties are not good

Method used

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  • Modified epoxy resin composite material of prereacted material of epoxy-terminated silicone oil and preparation method and application thereof
  • Modified epoxy resin composite material of prereacted material of epoxy-terminated silicone oil and preparation method and application thereof
  • Modified epoxy resin composite material of prereacted material of epoxy-terminated silicone oil and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Get 100g of epoxy-terminated silicone oil with an epoxy value of 0.1mol / 100g (produced from Shanghai Sili Industry and Trade Co., Ltd.) and 6g of ethylenediamine (the molar ratio is 1: 2) and place it in the reactor together, Dissolve with 100g xylene. Heated and stirred in an oil bath, and refluxed at 104°C for 15 hours. After the reaction was completed, the reaction mixture was distilled under reduced pressure to remove xylene to obtain an epoxy-terminated silicone oil pre-reactant.

[0041] (2) 100g terminal epoxy silicone oil pre-reactant, 100g E-44 epoxy resin and 30g SiO 2 Put it in a beaker, add 21.8g p-, p-diaminodiphenylmethane, and stir evenly. According to the curing process of 90°C / 3h+150°C / 2h+180°C / 2h, the epoxy resin composite material modified by epoxy-terminated silicone oil pre-reactant is obtained. The measured tensile strength is 50.32MPa, the elongation at break is 12.31%, and the impact strength is 18.73KJ / m 2 , the glass transition temperatu...

Embodiment 2

[0043] (1) Take 100g of epoxy-terminated silicone oil with an epoxy value of 0.1mol / 100g (produced by Shanghai Sili Industry and Trade Co., Ltd.) and 24.8g of diaminodiphenyl sulfone (molar ratio is 1:2) In the reactor, dissolve with 150g of dimethylformamide. Heated and stirred in an oil bath, and refluxed at 105°C for 16 hours. After the reaction, the reaction mixture was distilled under reduced pressure to remove dimethylformamide to obtain a pre-reaction product of epoxy-terminated silicone oil.

[0044] (2) 0.1g terminal epoxy silicone oil pre-reactant, 100g E-32 epoxy resin and 30g SiO 2Place in a beaker, add 19.8g of diaminodiphenyl sulfone, and stir evenly. According to the curing process of 80°C / 1h+160°C / 2h+180°C / 2h, the epoxy resin composite material modified by epoxy-terminated silicone oil pre-reactant is obtained. The measured tensile strength is 43.18MPa, the elongation at break is 10.27%, and the impact strength is 16.35KJ / m 2 , the glass transition temperatu...

Embodiment 3

[0046] (1) Get 100g of epoxy-terminated silicone oil (produced from Shanghai Sili Industry and Trade Co., Ltd.) and 1.98g of epoxy value 0.01mol / 100g to, p-diaminodiphenylmethane (molar ratio is 1: 2) Put them together in a reactor and dissolve them with 100g of toluene. Heated and stirred in an oil bath, and refluxed at 106°C for 16 hours. After the reaction, the reaction mixture was distilled under reduced pressure to remove toluene to obtain a pre-reactant of epoxy-terminated silicone oil.

[0047] (2) 10g terminal epoxy silicone oil pre-reactant, 100g BPF-45 epoxy resin and 50g SiO 2 Put it in a beaker, add 22.3g p-, p-diaminodiphenylmethane, and stir evenly. According to the curing process of 90°C / 3h+150°C / 2h+180°C / 2h, the epoxy resin composite material modified by the epoxy-terminated silicone oil pre-reactant is obtained. The measured tensile strength is 52.79MPa, the elongation at break is 14.28%, and the impact strength is 20.15KJ / m 2 , The glass transition tempera...

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Abstract

The invention discloses a modified epoxy resin composite material of a prereacted material of epoxy-terminated silicone oil and a preparation method and application thereof. The modified epoxy resin composite material of the prereacted material of the epoxy-terminated silicone oil contains 0.1-100 parts of prereacted material of the epoxy-terminated silicone oil, 100 parts of epoxy resin, 0-50 parts of silica and 5-70 parts of curing agent, wherein the structural formula of the prereacted material of the epoxy-terminated silicone oil is shown as the formula (1). Since the prereacted material of the epoxy-terminated silicone oil has a functional group capable of reacting with the epoxy resin, the polarity of the epoxy resin is enlarged and the compatibility becomes good, and thereby, the epoxy resin is better modified, which more evenly distributes the epoxy-terminated silicone oil in the epoxy resin, achieves smaller the dimensions of phase regions, and improves and the toughness and the heat stability of the epoxy resin, and thereby, the obtained modified epoxy resin composite material of the prereacted material of the epoxy-terminated silicone oil has wide application range and can be used as high-performance materials of dopes, structural adhesives, electronic package materials and the like.

Description

technical field [0001] The invention relates to a modified epoxy resin composite material, in particular to an epoxy resin composite material modified by an epoxy-terminated silicone oil pre-reactant and its preparation method and application. Background technique [0002] Epoxy resin is a kind of thermosetting polymer synthetic material with good adhesion, corrosion resistance, electrical insulation and high strength. It has been widely used in the bonding of various metals and non-metals, corrosion-resistant coatings, electrical insulation materials, FRP / composite materials, etc. It plays an important role in electronics, electricity, machinery manufacturing, chemical anticorrosion, aerospace, shipping and many other industrial fields. In recent years, its application has expanded to fiber reinforced materials, semiconductor packaging materials, laminates, integrated circuits and other electronic and electrical packaging materials, etc., which requires materials to have h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/02C08L63/04C08L83/04C08L83/08C08K13/02C08K3/36C08G59/14C09D163/00C09D163/02C09D163/04C09J163/00C09J163/02C09J163/04C09K3/10
Inventor 刘伟区李宏静
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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