Tear-resistant fluororubber shunt umbrella and preparation thereof
A technology of fluororubber and shunting umbrella, which is applied in liquid bottling, packaging, liquid treatment, etc., can solve the problems of high cost of carbon fiber, deterioration of tear performance, short service life, etc., and achieves low cost, simple preparation process, good durability The effect of tear properties
Active Publication Date: 2010-11-24
GUANGZHOU MECHANICAL ENG RES INST
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Problems solved by technology
However, the heat tear resistance of tetrapropylene fluororubber is poor, especially the tear performance at high temperature is worse. During the vulcanization process of thin products, since the vulcanization temperature is about 170 ° C, after the vulcanization is completed, the shunt umbrella will be removed from the When the mold comes out again, it is easy to be scrapped due to tearing of the product, so the service life is very short
CN1935893A proposes a method for filling carbon fiber to improve the tear strength of fluororubber, but the cost of choosing carbon fiber is relatively high, and it is not suitable for application in thin products such as shunting umbrellas
Method used
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Abstract
The invention discloses a fluorubber shunt parachute with tearing resistance and the preparation method thereof. The invention is made of the following row materials with the percentage in weight: 70-80 shares of tetrapropyl fluoro elastomer gross rubber, 20-30 shares of hydrogenated nitrile-butadiene gross rubber. The shunt parachute is both with the chemical mediator of the resistance to the broad spectrum and the better tearing resistance. The invention has the advantages of low cost and simple preparation technology.
Description
A tear-resistant fluororubber shunting umbrella and preparation method thereof technical field The invention relates to the field of rubber industrial products, in particular to a tear-resistant fluororubber shunting umbrella and a preparation method thereof. Background technique The rubber diverter umbrella is a thin-walled rubber product, and the wall thickness of the product usually gradually transitions from 0.5mm to 3mm. On the liquid filling production line, the filled liquid flows through the diverter umbrella along the outer edge of the exhaust pipe, and then discharges down the inner wall of the packaging bottle. Due to exposure to various chemical media in pharmaceutical, daily chemical, food, pesticide and special industries, the rubber shunt umbrella must have good chemical media resistance. Tetrapropane fluoro rubber has a broad spectrum of chemical resistance, so tetrapropane fluoro rubber is usually used to manufacture rubber shunt umbrellas. However, the ...
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IPC IPC(8): C08L27/12C08K5/29B67C3/28C08L9/02C08K3/04C08K5/09C08K5/14
Inventor 肖风亮黄兴彭兵王勇
Owner GUANGZHOU MECHANICAL ENG RES INST