High-temperature-resistant oil-resistant rubber composition and preparation method thereof

A technology of oil-resistant rubber and high-temperature resistance, which is applied in the field of high-temperature-resistant oil-resistant rubber composition and its preparation, can solve the problems of short service life at high temperature, complicated manufacturing process, and high production cost, achieve good high-temperature oil resistance, overcome single function, The effect of low processing cost

Inactive Publication Date: 2018-04-06
DSP TECH DEV WENZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the existing deficiencies and provide a high-temperature-resistant and oil-resistant rubber composition, which can improve the current disadvantages of easy embrittlement of rubber and short service life at high temperatures, and solve the problems of complicated manufacturing process and high production cost; The high temperature and oil resistant rubber composition has a special high temperature and oil resistance ability, which can overcome the poor performance of traditional rubber. The material selection can improve the anti-oxidation and anti-brittle ability of the high temperature and oil-resistant rubber composition, and can effectively avoid the use of rubber on the environment. pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A high temperature and oil resistant rubber compound

[0037] Raw material and ingredient composition: (unit: kg)

[0038] Chlorosulfonated polyethylene rubber 30kg, chlorinated polyether nitrile rubber 80kg, acrylate rubber 70kg, calcium silicate 1kg, modified paraffin 4kg, calcium stearate 1kg, dimethyl silicone oil 3kg, antioxidant 1kg, zinc oxide 2kg, plasticizer 4kg.

[0039] The preparation method of modified paraffin in the above-mentioned raw material is:

[0040] Step a: ultrasonically wash the paraffin powder in ethanol for 30 minutes, filter, air dry and crush through a 30-mesh sieve;

[0041] Step b: After the polyethylene is heated and melted, the paraffin wax obtained in step a is added to co-melt, mixed at a temperature of 120°C for 1 hour, and then extruded and granulated to obtain the modified paraffin wax. The mass ratio of polyethylene and paraffin is 3:5; the mass ratio of ethanol and paraffin is 10:6.

[0042]Prepared by:

[0043] Step A1: Grin...

Embodiment 2

[0048] A high temperature and oil resistant rubber mixture

[0049] Raw material and ingredient composition: (unit: kg)

[0050] Chlorosulfonated polyethylene rubber 50kg, chlorinated polyether nitrile rubber 90kg, acrylate rubber 90kg, calcium silicate 2kg, modified paraffin wax 12kg, calcium stearate 3kg, dimethyl silicone oil 7kg, antioxidant 5kg, zinc oxide 4kg, plasticizer 8kg.

[0051] The preparation method of modified paraffin in the above-mentioned raw material is:

[0052] Step a: ultrasonically wash the paraffin in ethanol for 60 minutes, filter, air dry and crush through a 40-mesh sieve;

[0053] Step b: After the polyethylene is heated and melted, the paraffin wax obtained in step a is added to co-melt, mixed at a temperature of 135°C for 3 hours, and then extruded and granulated to obtain the modified paraffin wax. The mass ratio of polyethylene and paraffin is 3:5; the mass ratio of ethanol and paraffin is 10:6.

[0054] Prepared by:

[0055] Step A1: Grind...

Embodiment 3

[0060] A high temperature and oil resistant rubber compound

[0061] Raw material and ingredient composition: (unit: kg)

[0062] Chlorosulfonated polyethylene rubber 35kg, chlorinated polyether nitrile rubber 85kg, acrylate rubber 70kg, calcium silicate 12kg, modified paraffin wax 6kg, calcium stearate 2kg, dimethyl silicone oil 5kg, antioxidant 2kg, zinc oxide 3kg, plasticizer 6kg.

[0063] The preparation method of modified paraffin in the above-mentioned raw material is:

[0064] Step a: ultrasonically wash the paraffin wax in ethanol for 40 minutes, filter it, dry it naturally and pulverize it through a 30-mesh sieve;

[0065] Step b: After the polyethylene is heated and melted, the paraffin wax obtained in step a is added to co-melt, mixed at a temperature of 125°C for 2 hours, and then extruded and granulated to obtain the modified paraffin wax. The mass ratio of polyethylene and paraffin is 3:5; the mass ratio of ethanol and paraffin is 10:6.

[0066] Prepared by: ...

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PUM

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Abstract

The invention discloses a high-temperature-resistant oil-resistant rubber composition and a preparation method thereof. The high-temperature-resistant oil-resistant rubber composition is prepared fromchlorosulfonated polyethylene rubber, chlorinated polyether nitrile rubber, acrylate rubber, calcium silicate, modified paraffin, calcium stearate, dimethicone, an anti-aging agent, zinc oxide and aplasticizing agent. By adopting the high-temperature-resistant oil-resistant rubber composition, the defects that the existing rubber is easy to fragile and short in service life at a high temperatureand the like can be overcome, the problem that the production process is complicated and the production cost is high can be solved, the high-temperature-resistant oil-resistant rubber composition hasspecial high temperature resistance and oil resistance and can overcome the problem that the traditional rubber performance is poor, and the selected materials can improve the antioxidant capacity and anti-fragile capacity of the high-temperature-resistant oil-resistant rubber composition.

Description

technical field [0001] The invention belongs to the technical field of rubber materials, and in particular relates to a high-temperature and oil-resistant rubber composition and a preparation method thereof. Background technique [0002] High temperature has a great influence on the physical and mechanical properties of rubber, which is mainly manifested in the physical and chemical changes of rubber under high temperature. , followed by hardening, brittleness, loss of elasticity and other aging phenomena of rubber, which reduce its original quality. The high temperature resistance of rubber, that is, the ability to maintain its elasticity and work normally at high temperatures. [0003] The oil resistance of rubber refers to the ability of vulcanized rubber to resist the action of oil. When rubber products are in contact with oily substances, the oil will penetrate into the rubber, causing it to swell or increase in volume, seriously affecting the use of the rubber and ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/02C08L23/34C08L33/04C08L83/04C08L91/06C08L23/06C08K13/02C08K3/34C08K5/098C08K3/22C08K5/13C08K5/18
Inventor 陈海燕
Owner DSP TECH DEV WENZHOU CO LTD
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