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External layer glue formulation of microwave-vulcanized double-complex glue tube
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A technology of microwave vulcanization and outer layer glue, which is applied in the direction of hoses, pipes, pipes/pipe joints/fittings, etc. It can solve the problems of bubbles on the outer surface, bubbles on the outer surface, affecting product performance and appearance, and reduce production costs. , Improve production efficiency and save manpower
Inactive Publication Date: 2011-11-16
TIANJIN PENGYI GRP CO LTD
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Problems solved by technology
Microwave vulcanization equipment includes a microwave heating section and three hot air heating sections. The product is vulcanized under high temperature and normal pressure conditions. The vulcanization medium is hot air. Micropores are prone to appear inside the outer rubber of the hose, and bubbles appear on the outer surface, which affects the quality of the product. performance and appearance
The formula of the original steam vulcanization tank vulcanization process using the microwave vulcanization process cannot meet the requirements, and a new formula needs to be designed to solve the problem of the internal micropores of the outer layer of rubber and the problem of air bubbles on the outer surface. At the same time, it achieves the purpose of simplifying the process, saving manpower, improving production efficiency and reducing costs.
Method used
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[0070] Using the formula of the outer layer rubber in the above embodiment, the outer layer rubber is cut horizontally and vertically after microwave vulcanization, and visually observed that there are no micropores inside and no bubbles on the outer surface, which is the same as that of traditional steam autoclave vulcanization, and the material properties are also the same...
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PUM
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Abstract
The invention relates to the technical field of glue tubes, in particular to an external layer glue formulation of a microwave-vulcanized double-complex glue tube. The external glue formulation comprises the following components in parts by weight: 100 parts of chlorosulfonated polyethylene rubber, 0.8-1 parts of high-abrasion carbon black, 16-20 parts of white carbon black, 12-18 parts of titanium white powder, 10-20 parts of dioctyl phthalate, 50-60 parts of dehumidification defoaming agent, 6-10 parts of coumaroneindene resin, 0.6-1 parts of stearic acid, 20-24 parts of magnesium oxide, 2-6 parts of polyethylene glycol, 1.4-1.8 parts of dibenzothiazyl disulfide, 0.8-1.2 parts of dialkyl disulfide zinc phosphate, and 1-2 parts of tetrasulfide bithiuram. Because of addition of TP / S, the dehumidification defoaming agent and the coumaroneindene, the invention solves the problem that the external layer glue is subjected to microwave vulcanization and the surface generates bubbles. Compared with the vulcanized glue tube of the traditional steam vulcanized tank, the invention has simple procedure, saves labor, doubles the production efficiency, and reduces the production cost of the product by 50 percent, and the performance of the material is the same as that of the vulcanized glue tube of the traditional steam vulcanized tank.
Description
technical field [0001] The invention relates to the technical field of rubber hoses, in particular to the outer layer rubber formula of microwave vulcanized double-composite rubber hoses. Background technique [0002] At present, the NBR / CSM double-compound rubber hoses that are widely used in the world and at home are all vulcanized by steam vulcanization tanks under high temperature and high pressure conditions to prepare rubber hoses. In this method, a semi-finished rubber hose is prepared by co-extruding with a double compound extruder, and the release agent is sprayed on the surface, and then cut according to the specified length. The cut semi-finished rubber hose is stacked together and parked for 4 to 8 hours. Rubber hoses are placed on a metal tray in a single layer, and finally the metal tray is pushed into a steam vulcanization tank, vulcanized and formed under high temperature and high pressure conditions, and the formed rubber hose is cleaned with a cleaning agen...
Claims
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Application Information
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