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Compounding technique of nano zinc oxide-rubber composite damping rubber material

A technology of nano-zinc oxide and shock-absorbing rubber, which is applied in the field of preparation of rubber-like composite materials, can solve the problems of low aging performance and fatigue-prone durability of shock-absorbing rubber materials, and achieve good rubber flow properties, tensile fatigue coefficient and The effect of durability improvement

Inactive Publication Date: 2013-09-11
XIAN HANHUA RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to develop a mixing process of a shock-absorbing rubber material compounded with nano-zinc oxide and rubber, to improve its dispersion in the rubber material, thereby improving the existing shock-absorbing rubber material with low aging performance, fatigue resistance and durability gender issues

Method used

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  • Compounding technique of nano zinc oxide-rubber composite damping rubber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix natural rubber and butadiene rubber according to the ratio of parts by mass in the open mill for a certain period of time, and pass through several times until the Mooney viscosity of the mixed rubber is ML (1+4)，100℃ In the range of 40 to 60.

[0023] Two-stage mixing process is adopted. The first stage uses internal mixer for mixing, and the second stage uses open mill for vulcanization.

[0024] The rotational speed of the first-stage mixing rotor is 50r / min, and the mixing process is: raw rubber, nano-zinc oxide, stearic acid, white carbon black, silane coupling agent-pressure weight-carbon black, softening plasticizer-pressure weight -150°C debinding.

[0025] The two-stage mixing process is as follows: one-stage mixing rubber, sulfur and accelerators DTDM, CBS, MBT, etc., thin pass 3 to 4 times for sheet cooling (the temperature of the roller during the entire vulcanization process should not exceed 60°C).

Embodiment 2

[0027] The mixing process of the shock-absorbing rubber material composited with nano-zinc oxide and rubber in this embodiment is the same as 1, the difference is that in the first stage of mixing, carbon black is first added and mixed, and then softening plasticizer is added.

Embodiment 3

[0029] A three-stage mixing process is adopted. The first and second stages are mixed by internal mixer, and the third stage is vulcanized by open mill.

[0030] The rotational speed of the first-stage mixing rotor is 50r / min, and the mixing process is: raw rubber, nano-zinc oxide, stearic acid, white carbon black, silane coupling agent-pressure weight-3 / 5 carbon black-pressure weight-softening Plasticizer - pressing weight - 150 ° C deglue.

[0031] The rotational speed of the second-stage mixing rotor is 40r / min, and the mixing process is: first-stage rubber compound, 2 / 5 carbon black, anti-aging agent-pressure weight-140°C debinding.

[0032] The three-stage mixing process is: two-stage rubber compounding, sulfur and accelerators DTDM, CBS, MBT, etc., thin pass 3 to 4 times for sheet cooling (the temperature of the roller during the entire vulcanization process should not exceed 60°C).

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Abstract

The invention relates to a compounding technique of a nano zinc oxide-rubber composite damping rubber material, which comprises the following steps: plasticizing natural rubber and butadiene rubber according to a certain mass ratio and carrying out thin pass many times in an open mill until the Mooney viscosity ML[(1+4),100 DEG C] of the mixed rubber is 40-60, carrying out multistage compounding to obtain favorable dispersion properties, and finally, adding a vulcanizing agent and an accelerator into the open mill. The damping rubber material prepared by the compounding technique provided by the invention has the advantages of low Mooney viscosity, heat resistance, favorable durability and favorable fatigue resistance.

Description

technical field [0001] The invention relates to the technical field of preparation of rubber composite materials, in particular to a mixing process of a heat-resistant and durable shock-absorbing rubber material compounded with nano-zinc oxide and rubber. The Mooney of the shock-absorbing rubber material prepared by the process is Low viscosity, good heat resistance, durability and fatigue resistance. Background technique [0002] The harmfulness of vibration and noise caused by the rapid development of modern industry has become more and more prominent. Therefore, solving the related technologies of vibration and noise is a major problem that countries are currently facing. Rubber materials are widely used in shock absorption because of their remarkable characteristics in cushioning and reducing vibration. With the development of the automobile industry, the development of shock-absorbing materials is developing in the following two directions: (1) improving the mechanica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/00C08L7/00C08L9/00C08K13/02C08K3/22C08K5/09C08K3/04
Inventor 扈广法王显妮黄捷高超锋郭潜李鹏陈玉涌
Owner XIAN HANHUA RUBBER TECH