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Anstatic agent and antistatic urethane elastomer material thereof

A polyurethane elastomer, antistatic agent technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of low heat resistance, poor antistatic effect, unstable electrical properties, etc., and achieve good antistatic performance , Antistatic high efficiency, good compatibility effect

Inactive Publication Date: 2009-07-22
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the antistatic agent commonly used in China is a quaternary ammonium salt surfactant with Cl- as an anionic group, but it has disadvantages such as poor antistatic effect, unstable electrical performance, and low heat resistance, which cannot fully meet the requirements of the antistatic agent. The application requirements of the electronic and electrical industries with high anti-static requirements need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Disperse 10g of dodecyltrimethylammonium chloride and 10g of copper chloride in 40g of carbon tetrachloride solvent and stir for 1 hour; then add 40g of sodium dodecylsulfonate and stir to obtain a stable dispersion Liquid, the stirring time is 2 hours, and the whole system becomes viscous liquid, which obtains the required antistatic agent.

[0044] Add 80g of polyoxypropylene diol and 20g of TDI into a three-neck flask, raise the temperature to 60°C, and react for 1 hour to obtain a prepolymer; vacuumize at 90°C, degas for 10 minutes and then take a sample to analyze the isocyanate content; add 5g of ethanolamine and 1g Antistatic agent, stir quickly and evenly, pour it into a preheated steel mold at 100°C, and place it in an oven for degassing for 10 minutes, then move it into a flat vulcanizer for 2 hours vulcanization, demould, and place it at room temperature for 24 hours to obtain this product Invented antistatic polyurethane elastomer.

[0045] The surface resi...

Embodiment 2

[0047]Disperse 20g of dodecyldimethylbenzyl ammonium chloride and 20g of antimony chloride in 40g of ethyl acetate solvent and stir for 2 hours; then add 40g of sodium dodecylbenzenesulfonate and stir to obtain a stable The dispersion liquid, the stirring time is 3 hours, and the whole system becomes viscous liquid, promptly obtains required antistatic agent.

[0048] Add 90g of polyethylene adipate diol and 30g of MDI into a three-neck flask, heat up to 75°C, and react for 2 hours to obtain a prepolymer; vacuumize at 100°C, degas for 20min, and then take a sample to analyze the isocyanate content; Add 8g MOCA and 2g antistatic agent, stir quickly and evenly, pour into a preheated steel mold at 100°C, place in an oven for degassing for 15min, then move it into a flat vulcanizer for vulcanization for 3h, demould, and place at room temperature for 24h. That is, the antistatic polyurethane elastomer of the present invention is obtained.

[0049] The surface resistivity test was ...

Embodiment 3

[0051] Disperse 30g polynitrocyclic quaternary ammonium salt and 30g silver nitrate in 40g isopropyl myristate solvent and stir for 3 hours; then add 40g polyvinyl alcohol and stir to obtain a stable dispersion. The stirring time is 4 Hours, the whole system becomes viscous liquid, that is, the required antistatic agent.

[0052] Add 100g of polybutadiene diol and 40g of HDI into a three-necked flask, raise the temperature to 90°C, and react for 3 hours to obtain a prepolymer, vacuumize at 110°C, and analyze the isocyanate content after degassing for 30 minutes; add 10g of allyl Ether diol and 3g antistatic agent, stir quickly and evenly, pour into a preheated steel mold at 100°C, and place in an oven to degas for 20min, then move it into a flat vulcanizer for 4h vulcanization, demould, and place at room temperature for 24h , to obtain the antistatic polyurethane elastomer of the present invention.

[0053] The surface resistivity test was carried out according to GB11210-89 ...

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PUM

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Abstract

The invention relates to an antistatic agent and polyurethane elastomer material containing the antistatic agent. The invention discloses an antistatic agent which is characterized by comprising materials of the following weight portions: 1 to 6 of emulsifier, 1 to 6 of nonpolar solvent, 1 to 3 of quaternary ammonium salt and 1 to 3 of metal salt. The invention also discloses polyurethane elastomer materials including 0.5 to 3.5 percent of the antistatic agent. The polyurethane elastomer material produced by using the antistatic agent has good antistatic performance; the surface resistivity reaches 10 to 10ohm, with high-efficiency and durable antistatic performance; besides, the antistatic agent has a good compatibility with other additives of the polyurethane elastomer products, meets the high-temperature requirement during the production process of the product and has no mutual impact on respective physical and chemical properties.

Description

technical field [0001] The invention relates to an antistatic agent and its antistatic polyurethane elastomer material. Background technique [0002] Polyurethane elastomer is a new type of synthetic material between general rubber and plastic. It has extremely excellent high wear resistance, so it is known as wear-resistant rubber. Its hardness range is very wide, and it has high elasticity under high hardness. In addition, its high strength, high load carrying capacity, high tear strength and excellent oil resistance, ozone resistance, radiation resistance and other properties combine to make it suitable for practical applications. Core tires, tapes, rubber roller linings, oil seals, sealing rings, mold pads, potting of electrical components, adhesives and coatings, etc. Therefore, polyurethane elastomer is one of the indispensable engineering materials in various industrial sectors. Polyurethane elastomers can replace natural rubber, nitrile rubber and neoprene, etc., ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/16C08L75/04C08K5/19C08G18/48C08G18/42C08G18/74C08K3/30C08K3/16
Inventor 王锦成
Owner SHANGHAI UNIV OF ENG SCI
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