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A kind of modified epoxy vinyl ester resin and preparation method thereof

A technology of epoxy vinyl ester and epoxy vinyl ester, which is applied in the field of modified epoxy vinyl ester resin and its preparation, and can solve the problems of small elongation at break and poor impact strength

Active Publication Date: 2018-06-01
信之高新材料(浙江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defective of prior art, provide a kind of modified epoxy vinyl ester resin and preparation method thereof, modified epoxy vinyl ester resin of the present invention has overcome epoxy vinyl ester resin impact strength difference, Disadvantages of small elongation at break

Method used

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  • A kind of modified epoxy vinyl ester resin and preparation method thereof
  • A kind of modified epoxy vinyl ester resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In parts by weight, the modified epoxy vinyl ester resin is prepared from raw materials including the following components: 100 parts of bisphenol A epoxy vinyl ester resin, 30 parts of styrene, hydroxyl-terminated polydimethyl 20 parts of siloxane, 5 parts of polymethylhydrogen siloxane, 3 parts of γ-glycidyl triethoxysilane, 0.3 parts of dibutyltin dilaurate, 5 parts of silicone surfactant .

[0021] Add 100 parts of bisphenol A type epoxy vinyl ester resin and 30 parts of styrene into the reaction kettle and raise the temperature to 80°C, keep warm until the mixture is evenly stirred;

[0022] At a reaction temperature of 80°C, add 20 parts of hydroxyl-terminated polydimethylsiloxane, 5 parts of polymethylhydrogensiloxane, 0.3 parts of dibutyltin dilaurate, and 5 parts of silicone surfactant, Disperse and stir for 30 minutes, add 3 parts of γ-glycidyltriethoxysilane, disperse and stir for 30 minutes, and obtain the modified epoxy vinyl ester resin.

[0023] Add 1 p...

Embodiment 2

[0025] In parts by weight, the modified epoxy vinyl ester resin is prepared from raw materials including the following components: 100 parts of bisphenol A epoxy vinyl ester resin, 25 parts of styrene, hydroxyl-terminated polydimethyl 15 parts of siloxane, 3 parts of polymethylhydrogen siloxane, 4 parts of γ-glycidyl triethoxysilane, 0.2 parts of dibutyltin dilaurate, 8 parts of silicone surfactant share.

[0026] Add 100 parts of bisphenol A type epoxy vinyl ester resin and 25 parts of styrene into the reaction kettle and heat up to 80°C, keep warm until the mixture is evenly stirred;

[0027] At a reaction temperature of 80°C, sequentially add 15 parts of hydroxyl-terminated polydimethylsiloxane, 3 parts of polymethylhydrogen siloxane, 0.2 parts of dibutyltin dilaurate, and parts of silicone surfactant 8 parts, disperse and stir for 30 minutes, add 4 parts of γ-glycidyltriethoxysilane, disperse and stir for 30 minutes, and obtain the modified epoxy vinyl ester resin.

[00...

Embodiment 3

[0030] In parts by weight, the modified epoxy vinyl ester resin is prepared from raw materials including the following components: 100 parts of novolac epoxy vinyl ester resin, 35 parts of styrene, hydroxyl-terminated polydimethylsiloxane 25 parts, 6 parts of polymethylhydrogen siloxane, 3 parts of γ-glycidyl triethoxysilane, 0.5 part of dibutyltin dilaurate, and 10 parts of silicone surfactant.

[0031] Add 100 parts of novolac epoxy vinyl ester resin and 35 parts of styrene into the reaction kettle and raise the temperature to 80°C, keep it warm until it is evenly stirred;

[0032] At a reaction temperature of 80°C, sequentially add 25 parts of hydroxyl-terminated polydimethylsiloxane, 6 parts of polymethylhydrogen siloxane, 0.5 parts of dibutyltin dilaurate, and 10 parts of silicone surfactant 3 parts, disperse and stir for 30 minutes, add 3 parts of γ-glycidyltriethoxysilane, disperse and stir for 30 minutes, and then obtain the modified epoxy vinyl ester resin.

[0033] ...

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Abstract

The invention discloses modified epoxy vinyl ester resin. The resin is prepared from, by weight, 100 parts of epoxy vinyl ester resin, 5-50 parts of dilution agent, 5-40 parts of polysiloxane, 0.5-6 parts of coupling agent, 0.1-0.6 part of catalyst and 1-15 parts of surfactant, wherein epoxy vinyl ester resin is bisphenol A type epoxy vinyl ester resin or novolac epoxy vinyl ester resin, and polysiloxane is hydroxyl end-blocked dimethylsiloxane and polymethylhydrosiloxane. The modified epoxy vinyl ester resin overcomes the defect that epoxy vinyl ester resin is poor in impact toughness, can be used as a resin body of a glass fiber or carbon fiber composite material, high-temperature-resistant structural glue and a corrosion-resistant material, and can be widely used in the industrial fields of aviation, aerospace, electronics, traffic transport and the like.

Description

technical field [0001] The invention relates to an epoxy vinyl ester resin, in particular to a modified epoxy vinyl ester resin and a preparation method thereof. Background technique [0002] Epoxy vinyl ester resin is prepared by chemical reaction of epoxy resin and methacrylic acid or acrylic acid through ring-opening addition. It retains the basic chain segment of epoxy resin and has the good process performance of unsaturated polyester resin, so it not only has the room temperature curing performance of unsaturated polyester resin, but also has similar performance to epoxy resin. Since its industrialization in the 1960s, it has developed rapidly, and its application range is gradually expanding. It can be used as a resin matrix for glass fiber or carbon fiber composite materials, high temperature resistant structural adhesives and anti-corrosion materials, etc. [0003] Although epoxy vinyl ester resin has high strength and rigidity and excellent comprehensive performa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/08C08L83/06C08L83/05C08K5/5435C08F283/10C08F212/08
CPCC08F283/105C08L51/08C08L2205/02C08L2205/03C08L83/06C08L83/04C08K5/5435C08F212/08
Inventor 吴之中张继忠
Owner 信之高新材料(浙江)有限公司