Silica gel heat-resistant covering glue for conveyor belt and manufacturing method of silica gel heat-resistant covering glue

Abstract

The invention provides silica gel heat-resistant covering glue for a conveyor belt and a manufacturing method of the silica gel heat-resistant covering glue. The silica gel heat-resistant covering glue is composed of a material A, a material B and vulcanization accelerator; the material A is prepared from, by mass, 70 parts of ethylene propylene terpolymer, 30 parts of butyl rubber, 1 part of barium stearate, 1 part of zinc stearate, 60 parts of carbon black N330, 15 parts of paraffin oil, 5 parts of zinc oxide, 2 parts of stearic acid and 2 parts of triallyl isocyanate (TAC); all the constituents of the material A are mixed into a glue material obtained after roll banding is conducted for standby use; the material B is prepared from, by mass, 100 parts of silica gel (methyl vinyl silicone rubber), 5 parts of zinc oxide, 45 parts of white carbon black, 1.2 parts of a silane coupling agent, 3 parts of dihydroxydiphenylsilane, 2 parts of TAC and 2 parts of double-oxygen resin HVA; mixed roll banding is conducted firstly, and all the materials are mixed to a glue material obtained after roll banding is conducted for standby use; the material A and the material B are subjected to mixed packaging three times, then by mass, 2.0 parts of the vulcanization accelerator (DCP) is added, three triangular packages are made, the left portion and the right portion are each cut once, and batching out is conducted for standby use. By means of the silica gel heat-resistant covering glue, the silica gel can be used for the conveyor belt which is of a multi-layer structure and moves, long-term heat resistance of the silica gel is fully utilized, and the silica gel heat-resistant covering glue can have a long service life which cannot be achieved by other products.

Description

technical field [0001] The invention relates to a silica gel heat-resistant conveyor belt covering glue and a manufacturing method thereof. Background technique [0002] In modern rubber formulations, in order to achieve a certain function of the product, several varieties of rubber are mixed together for use. We all know that rubber as a polymer material, most of the raw rubber is in the form of lumps, and it is difficult to disperse evenly in the internal mixer (refining) machine. Silicone has excellent high temperature resistance, but low strength, poor tear resistance, and poor adhesion, so it cannot be used for fabric combination glue in multi-layer silicone products. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a kind of silica gel that can be used on the conveyor belt with multi-layer structure and moving, and make full use of its long-term heat resistance, so that this product can have the characteristics tha...

AI Technical Summary

Problems solved by technology

We all know that rubber as a polymer material, most of the raw rubber is in the form of lumps, and it is difficult to disperse evenly in the mixer (refining) machine

Silicone has excellent high temperature resistance, but low strength, poor tear resistance, and poor adhesion, so it cannot be used for fabric combination glue in multi-layer silicone products.