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A kind of antistatic polyurethane elastomer and preparation method thereof

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 superior antistatic performance, low cost and simple process

Active Publication Date: 2018-02-23
DONGGUAN JINGLUN IND
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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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  • A kind of antistatic polyurethane elastomer and preparation method thereof
  • A kind of antistatic polyurethane elastomer and preparation method thereof
  • A kind of antistatic polyurethane elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] A kind of preparation method of antistatic polyurethane elastomer, it comprises following preparation steps:

[0078]Step 1. 70 kg of polyether polyol with a functionality of 2 and a number average molecular weight of 1000, 28 kg of toluene dicyanate, and an antioxidant (bis[β(3-tert-butyl-5-methyl-4- Hydroxyphenyl) propionate] triethylene glycol ester) 2kg were added to the container in turn, and reacted in the container at 67°C for 3 hours to obtain component A with a mass content of isocyanide of 5.2%;

[0079] Step 2. Add 61 kg of polyether polyol with a functionality of 3 and a number average molecular weight of more than 5000, 33 kg of curing agent diethyltoluenediamine, catalyst N,N-bis[3-(dimethylamino)propyl ]-N',N'-dimethyl-1,3-propylenediamine 1㎏, anti-aging agent {2-(2'-hydroxy-3',5'-di[1,1-dimethylbenzene Base]) – benzotriazole)-5-chlorinated benzotriazole} 1㎏, antistatic agent octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate 4 kg are added to t...

Embodiment 2

[0082] A kind of preparation method of antistatic polyurethane elastomer, it comprises following preparation steps:

[0083] Step 1. 65 kg of polyether polyol with a functionality of 2 and a number average molecular weight of 1500, 33 kg of toluene dicyanate, antioxidant (bis[β(3-tert-butyl-5-methyl-4- Hydroxyphenyl) propionate] triethylene glycol ester) 2kg were added to the container in turn, and reacted in the container at 70°C for 2 hours to obtain component A with a mass content of isocyanide of 7.2%;

[0084] Step 2. Add 70 kg of polyether polyol with a functionality of 3 and a number average molecular weight of more than 5000, 25 kg of curing agent diethyltoluenediamine, catalyst N,N-bis[3-(dimethylamino)propyl ]-N',N'-Dimethyl-1,3-propylenediamine 0.05kg, anti-aging agent {2-(2'-hydroxy-3',5'-bis[1,1-dimethylbenzene base]) – benzotriazole)-5-chlorinated benzotriazole} 0.95kg, antistatic agent octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate 4kg were added t...

Embodiment 3

[0087] A kind of preparation method of antistatic polyurethane elastomer, it comprises following preparation steps:

[0088] Step 1. Add 64 kg of polyether polyol with a functionality of 2 and a number average molecular weight of 3000, 35 kg of toluene dicyanate, antioxidant (bis[β(3-tert-butyl-5-methyl-4- Hydroxyphenyl) propionate] triethylene glycol ester) 1kg was sequentially added to the container, and reacted in the container at 70°C for 3 hours to obtain component A with a mass content of isocyanide of 7.0%;

[0089] Step 2. Add 82kg of polyether polyol with a functionality of 3 and a number average molecular weight of more than 5000, 12kg of curing agent diethyltoluenediamine, catalyst N,N-bis[3-(dimethylamino)propyl ]-N',N'-Dimethyl-1,3-propylenediamine 0.5kg, anti-aging agent {2-(2'-hydroxy-3',5'-di[1,1-dimethylbenzene Base]) – benzotriazole)-5-chlorinated benzotriazole} 1.5kg, antistatic agent octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate 4kg were adde...

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Abstract

The invention discloses an antistatic polyurethane elastomer and a preparation method thereof. It is made of component A and component B. The raw material of component A is composed of the following substances in weight percentage: polyether polyol 60‑ 70%, toluene dicyanate 20%-35%, antioxidant (bis[β(3-tert-butyl-5-methyl-4-hydroxyphenyl) propionate] triethylene glycol ester) 1%, The raw material of component B is made up of the following substances by weight percentage: polyether polyol 60-85%, curing agent 12-30%, catalyst 0.05%-1%, antiaging agent 0.8%, antistatic agent 4%, the present invention The obtained antistatic polyurethane elastomer not only has superior physical and mechanical properties, but also the surface resistance of the product can reach 107-8Ω, the volume resistance can reach 106-7Ω, and the antistatic performance 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 Patents(China)
IPC IPC(8): C08L75/08C08K5/19C08G18/76C08G18/66C08G18/48
Inventor 李文东
Owner DONGGUAN JINGLUN IND
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