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Functional curing agent and method for preparing bisphenol A type epoxy resin thereof

An epoxy resin and curing agent technology, applied in the field of material science, can solve the problems of poor heat resistance and poor mechanical strength, and achieve the effects of low cost, improved combustion resistance, and easy preparation.

Active Publication Date: 2016-10-26
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention solves the problems of poor heat resistance and poor mechanical strength after curing in the existing bisphenol A epoxy resin, and provides a functional inorganic curing agent and a method for preparing the bisphenol A epoxy resin

Method used

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  • Functional curing agent and method for preparing bisphenol A type epoxy resin thereof
  • Functional curing agent and method for preparing bisphenol A type epoxy resin thereof
  • Functional curing agent and method for preparing bisphenol A type epoxy resin thereof

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Embodiment Construction

[0030] specific implementation plan

[0031] A functional curing agent, comprising the following preparation steps:

[0032] A. Add magnesium hydroxide and adipic acid into the flask at a molar ratio of 10~3:1, add absolute ethanol and react at 80°C for 6h, then wash with absolute ethanol, and place in a vacuum oven at 60°C Drying to remove ethanol;

[0033] B. Weigh 5-10 g of the product in step A and add it to the flask, add thionyl chloride, react at 80°C for 12 hours, distill and remove the remaining thionyl chloride by degassing with a vacuum oil pump;

[0034] C. Weigh 5~10g of the product in step B and add it to the flask, add 100~300mL of analytical grade dimethylformamide DMF per gram of step B product, add 10~20mL of analytical grade diethylenetriamine per gram of step B product, React at 55°C for 12h, wash with analytically pure dimethylformamide DMF, and dry in a vacuum oven at 90°C to remove DMF to obtain the curing agent FOIHM.

[0035] In the step A, magnesiu...

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Abstract

The invention relates to the technical field of material science, in particular to a functional curing agent and a method for preparing bisphenol A type epoxy resin thereof. Magnesium hydroxide and adipic acid are added into a flask, added into absolute ethyl alcohol to react for 6 h at 80 DEG C and then washed through absolute ethyl alcohol; 5-10 g of the product in the step A is added into the flask, and thionyl chloride is added; 5-10 g of the product in the step B is added into the flask, 100-300 ml of analytically pure dimethyl formamide (DMF) is added into each gram of product in the step B, the analytically pure DMF is utilized for washing, DMF is removed through drying in a vacuum drying oven at 90 DEG C, and the curing agent FOIHM is obtained. The functional curing agent is a hybrid functional material and has the advantages of being easy to prepare and low in cost, and the epoxy resin curing capability of the prepared curing agent is much better than that of a commercially available curing agent at the same grade. The adding of magnesium hydroxide also potentially improves combustion resistance of the composite material.

Description

technical field [0001] The invention relates to the technical field of material science, in particular to a functional curing agent and a method for preparing bisphenol A epoxy resin. Background technique [0002] Various advanced functional materials have been widely used in today's life and production. Among them, the thermosetting resin-based composite material is a kind of composite material that has been studied more and widely used. It has the characteristics of light weight, high strength, large modulus, good corrosion resistance, excellent electrical properties, wide source of raw materials, easy processing and molding, strong adaptability to the environment, high production efficiency, etc., and has material designability and other special features. Performance, such as vibration reduction, noise reduction, electromagnetic wave transmission, stealth, ablation resistance and other characteristics, has become an irreplaceable important material in the national econom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/40
CPCC08G59/4007
Inventor 雷自强高承永张哲
Owner NORTHWEST NORMAL UNIVERSITY
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