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Nanometer meerschaum-modified chlorhydrin rubber gasket and preparation method thereof

A nano-sepiolite and chlorohydrin rubber technology, applied in the field of gaskets, can solve the problems of unsatisfactory sealing effect, poor wear resistance, low strength, etc., and achieve the effects of excellent effect, good wear resistance and good corrosion resistance.

Active Publication Date: 2013-03-20
BENGBU TRIUMPH ENG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing chlorohydrin rubber gaskets have defects such as unsatisfactory sealing effect, poor wear resistance, and low strength, which are far from meeting the actual requirements.

Method used

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  • Nanometer meerschaum-modified chlorhydrin rubber gasket and preparation method thereof

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Embodiment

[0015] A kind of nano sepiolite modified epichlorohydrin rubber gasket, the weight parts of its composition raw material are: epichlorohydrin rubber H45 142, Butyl rubber CBK139 15. Neoprene A-90 8. Acetyl triethyl citrate 4. Dibutyl maleate 5. Dibasic lead phosphite 1.6. Sulfur 1.5. Zinc oxide 4. Sodium Fatty Alcohol Polyoxyethylene Ether Sulfate 1.8. Nanometer sepiolite powder 44, nano clay 35, carbon black N220 12, isopropyl dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate 1.8, antioxidant 1035 2, antiaging agent NBC 1.6 , Anti-aging agent MB 1.5, accelerator Na-22 1.5, accelerator DM 3, crosslinking agent TAC 0.8, silane coupling agent KH550 1.5, modified tree ash 1.5.

[0016] Wherein, the modified tree ashes are prepared by the following method: first soak the tree ashes with 10% hydrogen peroxide for 3 hours, then wash with deionized water until neutral, and dry; add nano-carbon equivalent to 3% of the weight of the tree ashes , 2% polyisobutylene, 3% tribut...

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Abstract

The invention discloses a nanometer meerschaum-modified chlorhydrin rubber gasket. Raw materials for the nanometer meerschaum-modified chlorhydrin rubber gasket comprise, by weight, 135 to 145 parts of chlorhydrin rubber H45, 10 to 15 parts of butyl rubber CBK139, 5 to 10 parts of chloroprene rubber A-90, 3 to 5 parts of triethyl acetyl citrate, 3 to 5 parts of dibutyl maleate, 1 to 2 parts of dibasic lead phosphate, 1 to 2 parts of sulphur, 3 to 5 parts of zinc oxide, 1 to 2 parts of sodium polyoxyethylene fatty alcohol ether sulfate, 40 to 50 parts of nanometer meerschaum powder, etc. The gasket provided by the invention has the advantages of good high temperature resistance, sealing performance and flame resistance, excellent resistance to corrosion, small changes in its volume and hardness when working in mediums like an acid, an alkali and oil for a long time, no adherency onto the surface of a metal, a small friction coefficient, good wear resistance, flexibility of bonding with a sealing surface, good resistance to weathering ageing and ozone ageing, durability, etc.

Description

technical field [0001] The invention relates to a sealing gasket, in particular to a nano sepiolite modified epichlorohydrin rubber sealing gasket and a preparation method thereof. Background technique [0002] Chlorohydrin rubber gasket is a material used for sealing inside machinery, equipment, pipelines, etc. Its characteristics are: good heat aging resistance and ozone resistance, flex resistance, good elasticity, oil resistance, solvent resistance, combustion resistance, low air permeability, good adhesion, etc., so the comprehensive performance is better than nitrile rubber and chloroprene Rubber, the price is lower than fluorine rubber and silicone rubber, widely used in defense industry and civilian industry. However, the existing chlorohydrin rubber gasket has defects such as unsatisfactory sealing effect, poor wear resistance and low strength, which are far from meeting the actual requirements. Therefore research and develop a kind of novel chlorohydrin rubber se...

Claims

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Application Information

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IPC IPC(8): C08L71/00C08L23/22C08L11/00C08K13/06C08K3/34C08K3/04C08K3/22
Inventor 邢宝山刘润东陈坤郑纤秀卢佩庆徐超
Owner BENGBU TRIUMPH ENG TECH CO LTD
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