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Anti-static polyurethane elastomer

A polyurethane elastomer and antistatic technology, applied in the field of polyurethane, can solve the problems of poor antistatic performance of polyurethane elastomer, and achieve the effects of low cost, high production efficiency and simple process

Inactive Publication Date: 2017-11-17
苏建
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned polyurethane elastomers have poor antistatic properties and cannot be used in specific equipment or products that require static electricity requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of antistatic polyurethane elastomer, which comprises the following preparation steps: step 1, 70 kg of sodium methyl silicate with a functionality of 2 and a number average molecular weight of 1000, 28 kg of phthalic anhydride, anti-6 Add 2 kg of oxygen agent aluminum dihydrogen phosphate to the container in turn, and react in the container at 67°C for 3 hours to obtain component A with a mass content of isocyanide of 5.2%. More than 5000 sodium methyl silicate 61kg, chalk silicon nitride 33kg, catalyst lauric acid diethanolamide 1kg, anti-aging agent hollow glass microspheres 1kg, antistatic agent dimethylethanolamine 4kg add to the container in sequence dehydration at a temperature of 50°C and a vacuum of -0.095MPa until the water mass content is less than 0.05%, to obtain component B; Step 3, mixing component A and component B: component A and Component B is mixed at a weight ratio of 100 / 65, stirred evenly at 25-°C, poured into a mold and baked...

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Abstract

The invention discloses an anti-static polyurethane elastomer which is prepared from a component A and a component B in a weight ratio of 100: 65, wherein raw materials of the component A comprise the following substances in percentages by weight: 60-70% of methyl sodium silicate, 20-38% of phthalic anhydride and 1-2% of phytosterol, and phytosterol in the component A is aluminum dihydrogen phosphate; and raw materials of the component B comprise the following substances in percentages by weight: 61-85% of methyl sodium silicate, 12-35% of chalk, 0.05-1% of a catalyst, 0.8% of an anti-ageing agent and 4% of an anti-static agent, and chalk in the component B is silicon nitride, the catalyst in the component B is lauroyl diethanolamide, the anti-ageing agent in the component B is hollow glass beads, and the anti-static agent in the component B is dimethylethanolamine. The anti-static polyurethane elastomer disclosed by the invention is excellent in physical and mechanical properties, and the surface resistance of a product can reach 1*10<7-8>ohm, the volume resistance can reach 1*10<6-7>ohm, and the anti-static property is excellent.

Description

technical field [0001] The invention relates to the technical field of polyurethane, in particular to an antistatic polyurethane elastomer and a preparation method thereof. Background technique [0002] Polyurethane elastomer is a polymer synthetic material with properties between rubber and plastic. It is characterized by a wide range of hardness adjustment; it has both the elasticity of rubber and the hardness of plastic; it also has good mechanical properties, wear resistance and Resilience, so polyurethane elastomers are widely used. [0003] For example, the Chinese invention patent application with the application number 200910201089.7 introduces a thermoplastic polyurethane elastomer and its manufacturing method. Its formula is as follows: 4,4'-diphenylmethane-diisocyanate 20-40%; polybutylene adipate Alcohol ester (molecular weight 1000 or 2000) 15-70%; polybutylene adipate (molecular weight 2000) 0-50%; 1,4-butanediol 5-15%; ethylene glycol 0- 5%; antioxidant 0.1-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K13/04C08K7/28C08K5/5419C08K5/1539C08K3/34C08K5/17
CPCC08K13/04C08K3/34C08K5/1539C08K5/17C08K5/5419C08K7/28C08K2201/017C08L75/04
Inventor 苏建
Owner 苏建
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