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Low and high temperature resistant oil nitrile rubber tube and preparation method thereof

A technology of nitrile rubber, high and low temperature resistance, applied in the field of material processing, can solve the problems of cold resistance decline and other problems, achieve good high and low temperature resistance and wear resistance, suitable for large-scale production, and the effect of simple preparation process

Inactive Publication Date: 2018-12-28
浙江久运汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of the content of acrylonitrile, the polarity increases, the oil resistance improves obviously, but the cold resistance decreases

Method used

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  • Low and high temperature resistant oil nitrile rubber tube and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of high and low temperature resistant oily nitrile rubber tube comprises the following steps:

[0023] (1) Weigh 75 parts of nitrile rubber, 50 parts of hydrogenated nitrile rubber, 30 parts of fast extruded carbon black with a particle size of 40 to 45 nm, 10 parts of zinc oxide, 1 part of stearic acid, and anti-aging agent in parts by weight. 1 part of RD, 1.5 parts of vinyltriethoxysilane, 3 parts of plasticizer TP, 2 parts of crosslinking agent DCP, 0.5 part of accelerator DM, 0.5 part of sulfur, mix well and knead at 160 ° C for 20 minutes, then in Mix at 200°C for 1.5h, the mixing pressure is 11KN, and the speed of internal mixer is 50r / min to obtain the mixed rubber.

[0024] (2) extruding the mixed rubber with an extruder to obtain a nitrile rubber tube.

Embodiment 2

[0026] A kind of preparation method of high and low temperature resistant oily nitrile rubber tube comprises the following steps:

[0027] (1) Take by weight 75 parts of nitrile rubber, 50 parts of hydrogenated nitrile rubber, 12.5 parts of halloysite nanotubes modified by fluorosilane, 12.5 parts of modified carbon nanotubes with a particle size of 800-900nm, The specific surface area is 130m 2 17 parts per g of white carbon black, 30 parts of fast extrusion carbon black with a particle size of 40-45nm, 10 parts of zinc oxide, 1 part of stearic acid, 1 part of anti-aging agent RD, 1.5 parts of vinyltriethoxysilane , 3 parts of plasticizer TP, 2 parts of crosslinking agent DCP, 0.5 part of accelerator DM, and 0.5 part of sulfur. After mixing evenly, knead at 160°C for 20min, then at 200°C for 1.5h, and the mixing pressure is 11KN. The rotating speed of the internal mixer is 50r / min, and the mixed rubber is obtained.

[0028] (2) extruding the mixed rubber with an extruder to...

Embodiment 3

[0032] A kind of preparation method of high and low temperature resistant oily nitrile rubber tube comprises the following steps:

[0033] (1) Take by weight 85 parts of nitrile rubber, 60 parts of hydrogenated nitrile rubber, 15 parts of halloysite nanotubes modified by fluorosilane, 15 parts of modified carbon nanotubes, 12.9 parts of white carbon black, granules 20 parts of fast extruded carbon black with a diameter of 40-45nm, 8 parts of zinc oxide, 0.5 part of stearic acid, 0.5 part of anti-aging agent RD, 1 part of vinyltrimethoxysilane, 2 parts of plasticizer TP, crosslinking agent 1 part of DCP, 0.3 part of accelerator DM, and 0.3 part of sulfur, after mixing evenly, knead at 170°C for 10 minutes, then at 220°C for 1h, the mixing pressure is 12KN, the speed of the internal mixer is 45r / min, and the mixing glue.

[0034] (2) extruding the mixed rubber with an extruder to obtain a nitrile rubber tube.

[0035] Among them, the preparation method of fluorosilane-modified...

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Abstract

The invention relates to the field of material processing and discloses a low and high temperature resistant oil nitrile rubber tube and a preparation method thereof. The nitrile rubber tube is prepared from, by weight, 65-85 parts of nitrile rubber, 40-60 parts of hydrogenated butadiene-acrylonitrile rubber, 20-40 parts of fast extruding furnace black, 8-12 parts of zinc oxide, 0.5-1.5 parts of stearic acid, 0.5-1.5 parts of anti-aging agent RD, 1-2 parts of organosilicone processing aid, 2-4 parts of plasticizer TP, 1-3 parts of cross-linking agent DCP, 0.3-0.7 part of accelerant DM and 0.3-0.7 part of Sulphur. The fast extruding furnace black is adopted as filler to improve the high temperature resistance of the rubber, the nitrile rubber tube has good low temperature resistance itself,and the hydrogenated butadiene-acrylonitrile rubber has good solvent resistance. The nitrile rubber tube prepared by adopting the preparation method has good low and high temperature resistance and oil resistance and is suitable for large-size production.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a high and low temperature resistant oily nitrile rubber tube and a preparation method thereof. Background technique [0002] There are many kinds of rubber products with good physical and mechanical properties and high elasticity. They are widely used in various parts of automobiles, including tires, rubber hoses, transmission belts, sealing products, shock-absorbing rubber parts and safety products. In recent years, with the rapid development of the automobile industry, the performance requirements of rubber products are getting higher and higher, and the high and low temperature resistance of rubber materials in the existing market is increasingly unable to meet the needs of the market. Therefore, there is an urgent need to develop a high and low temperature resistant rubber material for automotive air-conditioning hoses. Nitrile rubber is a random copolymer of acrylonitril...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L15/00C08K13/02C08K13/06C08K9/06C08K9/02C08K9/04C08K7/24C08K3/36C08K3/04C08K3/22C08K5/09C08K5/5425C08K5/3437
CPCC08K2003/2296C08K2201/006C08K2201/011C08L9/02C08L2201/08C08L2203/18C08L15/005C08K13/02C08K3/04C08K3/22C08K5/09C08K5/5425C08K5/3437C08K13/06C08K9/06C08K9/02C08K9/04C08K7/24C08K3/041C08K3/36
Inventor 闻浩泉张利芳马志豪唐刚峰彭春美叶会杰王平谭小均
Owner 浙江久运汽车零部件有限公司