Antistatic polyurethane elastomer and preparation method thereof

A polyurethane elastomer and antistatic technology, which is applied in the field of polymer material synthesis, can solve the problems of reducing material strength, easy agglomeration of carbon black, and difficulty in dispersing, and achieve the effect of improving dispersibility

Active Publication Date: 2018-06-19
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, the purpose of antistatic is achieved by adding carbon black. This method has the following defects. Adding a large amount of carbon black is easy to agglomerate and difficult to disperse.

Method used

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  • Antistatic polyurethane elastomer and preparation method thereof
  • Antistatic polyurethane elastomer and preparation method thereof
  • Antistatic polyurethane elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An antistatic polyurethane elastomer, which is mainly prepared from the following raw materials by weight fraction:

[0033]

[0034] (1) polybutylene adipate diol (M-1000), antioxidant 1010, organotin joins in reactor A by weight percentage, nitrogen protection, keep reactor A temperature is 95 ℃, and in Stir well in the reaction kettle A evenly. Add MDI to reactor B by weight percentage, protect the reactor with nitrogen, and keep the temperature of the reactor at 40°C.

[0035] (2) Add 1,4-butanediol and graphene oxide into reaction kettle C according to weight percentage, and disperse in ultrasonic for 2 hours to form graphene oxide-1,4-butanediol dispersion, nitrogen protection, keep The temperature of the reaction kettle was 55°C.

[0036] (3) When the temperature of each reactor is stable, through the perfusion system with accurate metering, the raw material components in reactors A, B and C are accurately metered by the metering pump according to the weight...

Embodiment 2

[0038] An antistatic polyurethane elastomer, which is mainly prepared from the following raw materials by weight fraction:

[0039]

[0040]The specific preparation process is the same as that of Example 1, the difference being that the insulation temperature of reactor A is 100°C, the insulation temperature of reactor B is 50°C, the insulation temperature of reactor C is 50°C, and the hydroxylated modified graphene and 1,6 - The hexanediol ultrasonic dispersion time is 4 hours to form a hydroxylated modified graphene-1,6-hexanediol dispersion; the temperature of the twin-screw extruder is 210° C., and the screw speed is 190 rpm.

Embodiment 3

[0042] An antistatic polyurethane elastomer, which is mainly prepared from the following raw materials by weight fraction:

[0043]

[0044] The specific preparation process is the same as in Example 1, the difference is that the temperature of the reactor A is 98°C, the temperature of the reactor B is 60°C, the temperature of the reactor C is 58°C, and the amination modified graphene and 1,6 - The hexanediol ultrasonic dispersion time is 4 hours to form an aminated modified graphene-1,6-hexanediol dispersion; the temperature of the twin-screw extruder is 180° C., and the screw speed is 180 rpm.

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Abstract

The invention belongs to the field of the synthesis of polymer materials, and particularly relates to an antistatic polyurethane elastomer and a preparation method thereof. The antistatic polyurethaneelastomer is prepared from the following raw materials: polymer polyol, isocyanate, a chain extender, an antioxidant, modified graphene and a catalyst. The modified graphene is added in the followingway: the modified graphene is added into the chain extender to form modified graphene-chain extender dispersion liquid under an ultrasonic condition. Groups contained in the surface of the modified graphene such as hydroxyl, carboxyl, and amino react with-NCO, the antistatic polyurethane elastomer obtained by virtue of an in-situ polymerization way has lower surface resistivity and volume resistivity, higher mechanical performance and good wear resistance and heat stability, and can be applied to the fields such as polyurethane textiles.

Description

technical field [0001] The invention belongs to the field of polymer material synthesis, and in particular relates to an antistatic polyurethane elastomer and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomers have good electrical insulation properties, and their surface resistivity ρs (about 10 11 ~10 14 Ω) and volume resistivity ρv (about 10 13 ~10 15 Ω·m) is very large, that is, the conductivity is very small. Polyurethane elastomers are widely used in industrial production and products, so there are friction, handling, contact, separation and collision during normal use. In these processes, a large amount of charge is easy to accumulate, and these accumulated charges will pose a huge hazard to electronic equipment, human health, production and life, and even cause fire or explosion in an environment with flammable and explosive substances. [0003] At present, the common antistatic method for polyurethane elastomers is ...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/42C08G18/30C08G18/32
CPCC08G18/30C08G18/3206C08G18/4238C08G18/4854C08G18/6633C08G18/664C08G18/6666C08G18/6674C08G18/7614C08G18/7671
Inventor 陈淑海管永陈伟范文庆
Owner SHANDONG INOV POLYURETHANE
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