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Organic silicon resin modified epoxide resin composition

A technology of epoxy resin and novolac epoxy resin, which is applied in the field of compositions containing silicone resin flame retardant modified epoxy resin, can solve the problems of reducing the elongation at break and toughness of the resin internal stress

Inactive Publication Date: 2016-11-09
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone modified epoxy resin can not only improve the mechanical properties of the resin, such as reducing the internal stress of the resin, increasing its elongation at break and toughness; but also increase the chemical properties of the resin, such as oxidation resistance, heat resistance, etc., which make Silicone flame retardants have attracted much attention, but there are still compatibility issues between silicone resin flame retardants and epoxy resins

Method used

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  • Organic silicon resin modified epoxide resin composition
  • Organic silicon resin modified epoxide resin composition
  • Organic silicon resin modified epoxide resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Preparation of epoxy resin composition: Heat 100 parts of novolac epoxy resin (epoxy value 0.51mol / 100g, Shanghai Resin Co., Ltd. F-51) to 80°C, add 10 parts of silicone resin solubilizer, and stir slowly for 0.5 hours , add 0.3 parts of methyl MQ silicone resin (industrial grade Zhonglan Chenguang Chemical Research Institute) with a double-layer compact spherical structure, and 19.58 parts of diethyltoluenediamine. After stirring evenly, pour it into a preheated mold ( To prevent the silicone from curing, this step must be done within 15 minutes). Then heat and cure in a blast drying oven at a suitable temperature, the temperature is 130°C / 2.5 hours, 160°C / 2.5 hours. After curing, the flame-retardant epoxy resin cured product is obtained.

[0016] Preparation of silicone resin solubilizer: Put 23.6g of γ-(2,3-epoxypropoxy)propyltrimethoxysilane (KH560) and 18g of dimethyldimethoxysilane (DEMS) and appropriate amount of absolute ethanol into Put into the 250ml round-bo...

Embodiment 2

[0018] Epoxy resin composition: heat 100 parts of novolak epoxy resin (epoxy value 0.51mol / 100g, Shanghai Resin Co., Ltd. F-51) to 80°C, add 10 parts of silicone resin solubilizer (same as Example 1) , stirred at a slow speed for 0.5 hours, added 0.5 parts of methyl MQ silicone resin with a double-layer compact spherical structure, 19.58 parts of diethyltoluenediamine, and poured it into a preheated mold after stirring evenly (to prevent silicon The resin is cured, this step must be completed within 15 minutes). Then heat and cure in a blast drying oven at a suitable temperature, the temperature is 130°C / 2.5 hours, 160°C / 2.5 hours. After curing, the flame-retardant epoxy resin cured product is obtained.

Embodiment 3

[0020] Epoxy resin composition: Heat 100 parts of novolak epoxy resin (epoxy value 0.51mol / 100g, F-51 of Shanghai Resin Co., Ltd.) to 80°C, add 10 parts of silicone resin solubilizer (HPSi) developed in the laboratory, Stir at a slow speed for 0.5 hours, add 1 part of methyl MQ silicone resin with a double-layer compact spherical structure, and 19.58 parts of diethyltoluenediamine. After stirring evenly, pour it into a preheated mold (to prevent the silicone resin from Curing, this step must be completed within 15 minutes). Then heat and cure in a blast drying oven at a suitable temperature, the temperature is 130°C / 2.5 hours, 160°C / 2.5 hours. After curing, the flame-retardant epoxy resin cured product is obtained.

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Abstract

The invention discloses an organic silicon resin modified epoxide resin composition. The composition is mainly composed, by weight, 100 parts of epoxy resin, 0.3-80 parts of organic silicon resin, 5-80 parts of organic silicon resin solubilizer and 19.58 parts of diethyl methyl benzene diamine. The composition contains the organic silicon resin with a double-layer dense spherical structure, the organic silicon resin can be completely compatible with epoxy resin and evenly dispersed in epoxy resin under the action of the organic silicon resin solubilizer, in this way, the flame retardant property of a blend system is improved greatly, and flame retardant effect is improved.

Description

technical field [0001] The invention relates to an epoxy resin composition, in particular to a composition containing a silicone resin flame retardant modified epoxy resin. Background technique [0002] Epoxy resin is widely used as a matrix resin in composite materials. It is a kind of thermosetting resin with excellent performance, but its easy combustion limits its use in some fields. Therefore, a large number of flame retardants are used in epoxy resin molding, such as halogen-containing compounds, boron derivatives, metal oxides, phosphorus-containing compounds, etc., which can be added singly or compounded. However, flame retardant materials containing chlorine and bromine tend to emit irritating and corrosive hydrogen halide gas when burned, so halogen flame retardants have been gradually restricted; in order to avoid the use of traditional halogen flame retardants on the environment Harm, people are now committed to the development of halogen-free flame retardants. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/04C08L83/04C08L83/06C08G77/14
CPCC08G77/14C08L63/04C08L2205/02C08L2205/03C08L2201/02C08L83/04C08L83/06
Inventor 蔡绪福贾珮罗航曹席磊
Owner SICHUAN UNIV
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