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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 deterioration of tear performance, high cost of carbon fiber, short service life, etc., and achieve simple preparation process, low cost, good durability The effect of tear properties

Active Publication Date: 2008-06-25
GUANGZHOU MECHANICAL ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The raw material ratio and preparation method of the tear-resistant fluororubber diverter umbrella are as follows:

[0019] (1) 100 parts by mass of tetrapropylene fluororubber (FE2701) from Sanaifu Company, 30 parts by mass of N990 carbon black, 1.0 parts by mass of sodium stearate, 3 parts by mass of dicumyl peroxide, and 3 parts by mass of triallyl isocyanate 5 parts by mass of cyanurate, mixed uniformly on an open mill, to obtain tetrapropylene fluoride rubber compound;

[0020] (2) 100 mass parts of hydrogenated nitrile rubber (Therban A3406) of LANXESS company, 2 mass parts of magnesium oxide, 1.5 mass parts of antioxidant MB, 50 mass parts of N550 carbon black, 3 mass parts of dicumyl peroxide, 5 parts of triallyl isocyanurates are uniformly mixed on an open mill to obtain hydrogenated nitrile rubber mix;

[0021] (3) each get 75 mass parts of tetrapropyl fluorine rubber compound and 25 mass parts of hydrogenated nitrile rubber compound prepared above, mix evenl...

Embodiment 2

[0023] The raw material ratio and preparation method of the tear-resistant fluororubber diverter umbrella are as follows:

[0024] (1) 100 parts by mass of tetrapropylene fluororubber (FE2701) from Sanaifu Company, 30 parts by mass of N990 carbon black, 1.0 parts by mass of sodium stearate, 3 parts by mass of dicumyl peroxide, and 3 parts by mass of triallyl isocyanate 5 parts by mass of cyanurate, mixed uniformly on an open mill, to obtain tetrapropylene fluoride rubber compound;

[0025] (2) 100 parts by mass of hydrogenated nitrile rubber (Zetpot 2000) from Zeon Corporation, 5 parts by mass of magnesium oxide, 1.5 parts by mass of antioxidant MB, 50 parts by mass of N550 carbon black, and 3 parts by mass of dicumyl peroxide , 5 parts by mass of triallyl isocyanurate, mixed uniformly on an open mill, to obtain hydrogenated nitrile rubber mix;

[0026] (3) each get 80 mass parts of the above-mentioned prepared tetrapropyl fluorine rubber compound and 20 mass parts of hydroge...

Embodiment 3

[0028] The raw material ratio and preparation method of the tear-resistant fluororubber diverter umbrella are as follows:

[0029] (1) Asahi Glass Co., Ltd.'s tetrapropylene fluororubber (Aflas  FA 100S) 100 parts by mass, 30 parts by mass of N990 carbon black, 1.0 parts by mass of sodium stearate, 2 parts by mass of dicumyl peroxide, 4 parts by mass of triallyl isocyanurate, mixed on an open mill Evenly kneaded to obtain tetrapropylene fluorine rubber compound rubber;

[0030] (2) 100 parts by mass of hydrogenated nitrile rubber (Zetpot 2000) from Zeon Corporation, 5 parts by mass of magnesium oxide, 1.5 parts by mass of antioxidant MB, 50 parts by mass of N550 carbon black, and 3 parts by mass of dicumyl peroxide , 5 parts of triallyl isocyanurate, mixed uniformly on an open mill to obtain hydrogenated nitrile rubber mix;

[0031] (3) each get 70 mass parts of tetrapropyl fluorine rubber compound and 30 mass parts of hydrogenated nitrile rubber compound prepared above, mi...

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PUM

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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

technical field [0001] 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 [0002] 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 heat tear resistance of tetrapropylene fluororubber is poor, espe...

Claims

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Application Information

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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
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