High-conductivity and low-hardness NBR (nitrile-butadiene rubber) blended rubber and preparation method thereof

A low-hardness, high-conductivity technology, applied in the field of rubber formulations, can solve the problems of high production cost, complicated preparation process, and low production efficiency, and achieve the effect of improving conductivity and high efficiency

Pending Publication Date: 2020-02-07
环球石墨烯(青岛)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this method is complicated, the industrial production cost is high, the production efficiency is low, and the volume resistivity of the conductive rubber is also relatively large.
[0004] Patent CN 107501656 A discloses a method for preparing conductive and wear-resistant nitrile rubber materials. The graphite is microwave-treated to obtain expanded graphite, and it is ultrasonically treated. The expanded graphite is oscillated and dispersed into nano-graphite sheet

Method used

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  • High-conductivity and low-hardness NBR (nitrile-butadiene rubber) blended rubber and preparation method thereof
  • High-conductivity and low-hardness NBR (nitrile-butadiene rubber) blended rubber and preparation method thereof
  • High-conductivity and low-hardness NBR (nitrile-butadiene rubber) blended rubber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0024] Formula (mass parts phr)

[0025]

[0026]

[0027] Steps: (1) Set the initial temperature of the internal mixer to 70°C and the rotational speed to 65rpm, then put the nitrile rubber into the internal mixer and masticate for 1.5 minutes, then put in the active agent, anti-aging agent, white carbon black, Liquid nitrile rubber, dioctyl phthalate and 1 / 2 metered portion of conductive carbon black and all carbon nanotubes and graphene, put in the remaining conductive carbon black after banburying for 1.5min, and then banbury for 1.5min, Lift the upper bolt of the internal mixer for cleaning, and then internally mix to about 140°C to remove the glue;

[0028] (2) Adjust the roller pitch of the open mill to 1.5mm, re-mill the film from the internal mixer for 2-3 times, cover the rolls, then put in sulfur and accelerator, turn the rubber three times on the left and right, and then turn the film on the open mill Adjust the roller distance to 0.2mm for thin pass 6-8 tim...

Embodiment approach 2

[0030] Formula (mass parts phr)

[0031]

[0032]

[0033] The main steps:

[0034](1) Set the initial temperature of the internal mixer to 70°C and the rotational speed to 65rpm, then put the nitrile rubber into the internal mixer and masticate for 1.5min, then put in the active agent, anti-aging agent, white carbon black, liquid butyl Nitrile rubber, dioctyl phthalate, and 1 / 2 metered portion of conductive carbon black and all carbon nanotubes and graphene, put in the remaining conductive carbon black after 1.5 minutes of banburying, and then banbury for 1.5 minutes, lift the compactor Clean the top bolt on the mixer, and then banbury to about 140°C to remove the glue;

[0035] (2) Adjust the roller pitch of the open mill to 1.5mm, re-mill the film from the internal mixer for 2-3 times, cover the rolls, then put in sulfur and accelerator, turn the rubber three times on the left and right, and then turn the film on the open mill Adjust the roller distance to 0.2mm for...

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Abstract

The invention discloses high-conductivity and low-hardness NBR (nitrile-butadiene rubber) blended rubber and a preparation method thereof. The hardness of the blended rubber is reduced by liquid nitrile-butadiene rubber; the processing property of the blended rubber is improved by adding a special elastomer; the high-conductivity and low-hardness blended rubber is prepared by combining conductivecarbon black, a carbon nanotube and graphene; and the preparation method is simple to operate and the raw materials are easily available.

Description

technical field [0001] The invention relates to the field of rubber formulations, in particular to a blended rubber and a preparation method thereof. Background technique [0002] The advantage of NBR / TPEE blend rubber is to use TPEE's high and low temperature resistance, aging resistance, ozone resistance and medium resistance to improve the performance of nitrile rubber. Compared with pure NBR, NBR / TPEE blends have the following characteristics: Significantly improved ozone resistance and weather resistance; improved oil resistance, fuel resistance and chemical resistance; increased NBR hardness and improved rubber properties. Resilience, and the rubber compound has excellent dynamic mechanical properties. [0003] Patent CN 109851872 A discloses a method for preparing highly elastic conductive rubber, the conductive rubber includes the following components in parts by weight: 50-200 parts of nitrile rubber, 2-15 parts of active agent, and 20-100 parts of reinforcing fill...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L23/08C08L91/06C08K13/04C08K7/26C08K3/04C08K5/12
CPCC08K2201/001C08K2201/011C08K2201/014C08L9/02C08L2201/04C08L2205/025C08L2205/035C08L23/0853C08L91/06C08K13/04C08K7/26C08K3/042C08K3/041C08K3/04C08K5/12C08L23/0815
Inventor 高洪强闫龙龙刘璇刘世志马艺斌
Owner 环球石墨烯(青岛)有限公司
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