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High-temperature-resistant ultraviolet-resistant epoxy resin prepolymer and preparation method thereof

A technology of epoxy resin and prepolymer, which is applied in the field of high temperature-resistant and UV-resistant epoxy resin prepolymer and its preparation, can solve the problems of limited use of epoxy resin, poor high-temperature aging resistance and UV resistance, and the like, Achieve excellent high temperature aging resistance and anti-ultraviolet performance, improve high temperature aging resistance and anti-ultraviolet performance, and control the process

Inactive Publication Date: 2016-03-09
WUXI CHUANGDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the high temperature aging resistance and UV resistance of traditional epoxy resins are poor, which limits the use of epoxy resins in some environments that require high temperature resistance and long-term light

Method used

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  • High-temperature-resistant ultraviolet-resistant epoxy resin prepolymer and preparation method thereof
  • High-temperature-resistant ultraviolet-resistant epoxy resin prepolymer and preparation method thereof
  • High-temperature-resistant ultraviolet-resistant epoxy resin prepolymer and preparation method thereof

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Embodiment Construction

[0028] The present invention will be described in more detail below by way of examples, but the present invention is not limited to the examples consisting of the following experimental examples.

[0029] In the following examples, embodiment 1 is an embodiment of the present invention, and embodiment 2 is a comparative example.

[0030] According to the proportion, mix the epoxy resin and antioxidant evenly at 80°C-130°C, and then add the acid anhydride curing agent, coupling agent and polyol at 40°C-80°C for 30min-4h to obtain epoxy resin prepolymerization Finally, post-cure the above prepolymer at 40°C-80°C for 8h-18h to obtain the final epoxy resin prepolymer.

[0031] components Example 1 Example 2 Epoxy resin (Ⅰ) 34 0 Epoxy resin (Ⅳ) 0 50 Anhydride curing agent 60 44 Polyol 3 3 antioxidant 2 2 coupling agent 1 1

[0032] Note: The epoxy resin (Ⅳ) is bisphenol A type epoxy resin.

[0033] The epoxy resin prepoly...

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Abstract

The present invention discloses a high-temperature-resistant ultraviolet-resistant epoxy resin prepolymer comprising the following components: 20-50wt% of epoxy resin, 40-60wt% of an anhydride curing agent, 1-15wt% of a polyol, 0.1-2wt% of a coupling agent and 0.1wt%-5wt% of an antioxidant; a preparation method of the high-temperature-resistant ultraviolet-resistant epoxy resin prepolymer is as follows: after the epoxy resin and the antioxidant are evenly mixed, the anhydride curing agent and the coupling agent are added, when the reaction system is cooled to 40 DEG C-80 DEG C, the polyol is added for ring opening reaction with anhydride to obtain a carboxylic compound, and the carboxyl compound is reacted with the epoxy resin to obtain the epoxy resin prepolymer. Advantages of the high-temperature-resistant ultraviolet-resistant epoxy resin prepolymer are that: the high-temperature-resistant ultraviolet-resistant epoxy resin prepolymer has excellent high-temperature aging resistance and ultraviolet resistance, and the preparation method is simple, raw materials are easily available, the process is controllable, industrial production is easy, and the high-temperature-resistant ultraviolet-resistant epoxy resin prepolymer can be widely used in electronic device packaging materials, coatings and adhesives and other field.

Description

technical field [0001] The invention relates to the technical field of epoxy resin synthesis, in particular to a high temperature-resistant and ultraviolet-resistant epoxy resin prepolymer and a preparation method thereof. Background technique [0002] Epoxy resin has excellent bonding performance, chemical corrosion resistance, good chemical stability and electrical insulation, etc., and is widely used in the fields of coatings, adhesives, packaging of electronic devices and advanced composite materials. [0003] However, the high temperature aging resistance and UV resistance of traditional epoxy resins are poor, which limits the use of epoxy resins in some environments that require high temperature resistance and long-term light. Therefore, there is an urgent need to improve the high-temperature aging resistance and UV resistance of epoxy resins in practical applications. Contents of the invention [0004] The object of the present invention is to provide a high temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/42C08G59/38
CPCC08G59/4223C08G59/38C08G59/4215C08G2190/00
Inventor 陈子栋
Owner WUXI CHUANGDA ELECTRONICS
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