Phthalimide diglycidyl ether and preparation thereof

Abstract

The invention discloses phthalimide diglycidyl ether and a preparation method thereof, which relate to a high performance resin and a preparation method thereof. The invention solves the problems that the prior high performance resin has high price or high solidification molding temperature and softening point. The phthalimide diglycidyl ether is prepared by 100 portions of diphenylmethane bismaleimide, 160 to 170 portions of furfuryl alcohol, 350 to 370 portions of epoxy chloropropane, and 20 to 25 portions of sodium hydroxide according to weight portion ratio through an addition reaction, a phthaloylation reaction and an epoxidation reaction. The solidification temperature of a product is between 160 and 170 DEG C, the epoxy value is between 0.24 and 0.31, and the softening point is between 40 and 50 DEG C. The method has rich raw material sources, a simple process, no discharge of pollutants, and low production cost, reduces the price of the product, has steady product performance, and is convenient for popularization and application. The product can produce materials with grade C insulation structures such as grade C insulation products and grade C insulation binding materials with good performance when being matched with other auxiliary materials.

Description

technical field [0001] The invention relates to a high-performance resin and a preparation method thereof. Background technique [0002] Because high-performance resins have excellent physical, mechanical, electrical, thermal, chemical corrosion resistance and other comprehensive properties, high-performance resins are often used as C-level and H-level insulation products, laminated products, potting glue, impregnating paint, etc. At present, the commonly used high-performance resins include polyimide, polybenzimidazole, polyether ether ketone, bismaleimide, etc., but the prices of these resins except diphenylmethane bismaleimide are very expensive. It is expensive, so it is difficult to popularize and apply. Although the price of diphenylmethane bismaleimide is relatively moderate, it is also difficult to be directly applied due to poor manufacturability and high brittleness of the cured product. Therefore, domestic and foreign efforts to diphenylmethane bismaleimide modif...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of phthalimide diglycidyl ether and its preparation method in order to solve the problems of high price or high curing molding temperature and high softening point of existing high-performance resins

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