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Anti-aging epoxy resin curing agent and preparation method thereof

An epoxy resin curing and anti-aging technology, applied in the preparation of anti-aging epoxy resin curing agent, the field of anti-aging epoxy resin curing agent, can solve the problem of easy powdering, poor anti-ultraviolet performance, poor anti-ultraviolet aging performance, etc. question

Inactive Publication Date: 2020-05-12
NANJING ZHONGYING NEW NANOMATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-ultraviolet aging performance of epoxy resin-based composite materials is poor. The molecular chain of ordinary epoxy resin has the characteristics of being destroyed by absorbing ultraviolet rays. Resins have many limitations when used as coatings or other materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An anti-aging epoxy resin curing agent, comprising the following raw materials in parts by mass: 1 part of diethylenetriamine, 2 parts of diethylaminopropylene, 2 parts of hexamethylenediamine, 3 parts of cardanol, 3 parts of polyamide, 2 parts of aluminum oxide 1 part, 1 part of 2-hydroxy-4-(2,3-oxirane glycidyl ether)-benzophenone, and 0.3 part of titanium dioxide.

[0016] A method for preparing an anti-aging epoxy resin curing agent, comprising the following steps: (1) sequentially adding cardanol and polyamide to the stirred fatty polyamine and mixing evenly, and reacting the mixture at 62°C for 20 minutes; (2) Add aluminum oxide and react at 50°C for 10 minutes; (3) Slowly add 2-hydroxy-4-(2,3-ethylene oxide glycidyl ether)-benzophenone and mix well, and react the mixture at 60°C for 60 minutes After cooling, filter to obtain the anti-aging epoxy resin curing agent product.

Embodiment 2

[0018] An anti-aging epoxy resin curing agent, comprising the following raw materials in parts by mass: 2 parts of diethylenetriamine, 2 parts of diethylaminopropylene, 2 parts of hexamethylene diamine, 4 parts of cardanol, 2 parts of polyamide, 2 parts of aluminum oxide 0.9 parts of 2-hydroxy-4-(2,3-oxirane glycidyl ether)-benzophenone and 0.3 parts of titanium dioxide.

[0019] A method for preparing an anti-aging epoxy resin curing agent, comprising the following steps: (1) sequentially adding cardanol and polyamide to the stirred fatty polyamine and mixing evenly, and reacting the mixed liquid at 70°C for 30 minutes; (2) Add aluminum oxide and react at 55°C for 20 minutes; (3) slowly add 2-hydroxy-4-(2,3-ethylene oxide glycidyl ether)-benzophenone and mix well, and react the mixture at 70°C for 30 minutes After cooling, filter to obtain the anti-aging epoxy resin curing agent product.

Embodiment 3

[0021] An anti-aging epoxy resin curing agent, comprising the following raw materials in parts by mass: 2 parts of diethylenetriamine, 2 parts of diethylaminopropylene, 3 parts of hexamethylenediamine, 5 parts of cardanol, 1 part of polyamide, 4 parts of aluminum oxide 0.8 parts of 2-hydroxy-4-(2,3-oxirane glycidyl ether)-benzophenone, 0.6-1.2 parts of γ-glycidyl etheroxypropyltrimethoxysilane, and 0.4 parts of titanium dioxide.

[0022] A method for preparing an anti-aging epoxy resin curing agent, comprising the following steps: (1) sequentially adding cardanol and polyamide to the stirred fatty polyamine and mixing evenly, and reacting the mixture at 65°C for 30 minutes; (2) Add alumina and react at 65°C for 20 minutes; (3) Slowly add 2-hydroxy-4-(2,3-ethylene oxide glycidyl ether)-benzophenone and mix well, and react the mixture at 68°C for 50 minutes Afterwards, cool and filter to obtain the anti-aging epoxy resin curing agent product.

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PUM

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Abstract

The invention provides an anti-aging epoxy resin curing agent, which is prepared from the following raw materials in parts by mass: 3 to 8 parts of fatty polyamine, 2 to 5 parts of cardanol, 1 to 3 parts of polyamide, 2 to 4 parts of aluminum oxide, 0.5 to 1 part of 2-hydroxy-4-(2,3-ethylene oxide glycidyl ether)-benzophenone and 0.3 to 0.5 part of titanium dioxide. According to the invention, thecuring agent system provided by the invention has hardness and chemical corrosion resistance of an aliphatic amine system, also has long-term applicability, good toughness and low toxicity of a polyamide system, can well absorb ultraviolet rays, and can prevent epoxy resins from aging; the cardanol structure contains a C15 branched chain with unsaturated double bonds, so that the surface energy and the viscosity of the system are reduced, the binding power to a base material is improved, and excellent hydrophobicity and low permeability are provided for the system; and gamma-glycidyl ether oxypropyl trimethoxy silane is used as a filler and can participate in the curing process of a curing agent and an epoxy resin, so that corrosion and damage of acids and alkalis are prevented.

Description

technical field [0001] The invention relates to an anti-aging epoxy resin curing agent and a preparation method of the anti-aging epoxy resin curing agent, belonging to the field of epoxy resin curing agents. Background technique [0002] Epoxy resin is widely used in many fields such as electronics, electricity, machinery manufacturing, chemical corrosion, aerospace, shipping and so on because of its good adhesion, corrosion resistance, electrical insulation, high strength, and small shrinkage. , has become an indispensable basic material in industrial production. However, the anti-ultraviolet aging performance of epoxy resin-based composite materials is poor. The molecular chain of ordinary epoxy resin has the characteristics of being destroyed by absorbing ultraviolet rays. Resins have many limitations when used as coatings or other materials. Therefore, how to improve the anti-ultraviolet aging performance of epoxy resin, delay the aging speed of products, and prolong ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/62C08G59/60C08G59/46C08K3/22
CPCC08G59/46C08G59/60C08G59/62C08K3/22C08K2003/2227C08K2003/2241
Inventor 苏杨王奇
Owner NANJING ZHONGYING NEW NANOMATERIALS
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