Ageing resistant furan resin sealing gasket and production method thereof

Abstract

The invention discloses an ageing resistant furan resin sealing gasket and a production method thereof. The sealing gasket is produced from chlorohydrin rubber, ethylene propylene diene monomer and a modifier, wherein aluminum dihydrogen phosphate added in the invention has high fracture, compression and hydration resistance, and various ageing and wear resistant materials added in the modifier enhance the integral performances of the sealing gasket. A condensation polymerization reaction of active hydrogen, a hydroxymethyl group and a hydroxymethyl group on molecules of furan resin added in the invention and a polymerization reaction of opened double bonds on a furan nucleus are carried out under the catalysis of p-toluenesulfonic acid, methyl sulfate and glyceryl triacetate to form tridimensional network structured solid resin in order to realize hardening molding; and 3-(phenylamino)propyltrimethoxysilane, sulfobutyl ether-beta-cyclodextrin and diethylene glycol diacetate added in the invention reinforce the bonding property between particles and the furan resin, and rock wool, porous aluminum titanate, zircon, cement cinder and other reinforcing agents added in the invention improve the heat ageing cracking resistance, so the casting efficiency is improved, and the casting cost is reduced.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to a furan resin anti-aging gasket and a preparation method thereof. Background technique [0002] The rubber gasket is a kind of self-expanding sealing gasket, which belongs to the sealing part of the pipeline. The gasket is composed of three parts: the outer ring, the middle expansion ring and the inner ring; the outer ring and the inner ring are general elastic sealing rings, the center of the middle expansion ring has a ring bubble structure, and the two sides are hollow rings. The outside of the ring is sealed, and the inside of the ring is open; the outer ring and the inner ring are divided into two parts, which are installed on the inner and outer sides of the ring bubble structure of the middle expansion ring. Rubber gaskets are resistant to oil, acid and alkali, cold and heat, and aging, so they are widely used in industries such as automobiles, electronics, chemic...

AI Technical Summary

Problems solved by technology

[0003] However, the existing rubber gaskets have defects such as unsatisfactory sealing effect, poor wear resistance, and low strength, which are far from meeting the actual needs.