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Zinc oxide pre-dispersed masterbatch particle and preparation method and applications thereof

A technology of pre-dispersed masterbatch and zinc oxide, applied in the field of rubber additives, can solve the problems of slow mixing speed and dispersion speed, long rubber vulcanization time, uneven dispersion, etc. The effect of adding

Active Publication Date: 2014-03-12
PANJIN XINANYUAN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of long vulcanization time of rubber caused by slow mixing speed and dispersion speed and uneven dispersion when the zinc oxide pre-dispersed masterbatch particles in the prior art are applied to the tread rubber formula, an oxidation Zinc pre-dispersed masterbatch, and further provides the preparation method of said zinc oxide pre-dispersed masterbatch

Method used

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  • Zinc oxide pre-dispersed masterbatch particle and preparation method and applications thereof

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Experimental program
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Effect test

Embodiment 1

[0026] The zinc oxide pre-dispersed masterbatch described in this embodiment is composed of the following components by mass: 80 parts of zinc oxide powder; 4 parts of EPDM; 5 parts of BR; 4 parts of fatty acid zinc; 4 parts of zinc oleate; 3 parts of isobutylene sulfide share.

[0027] The preparation method of the zinc oxide pre-dispersed masterbatch particles described in the present embodiment is as follows:

[0028] (1) Put 4 parts of EPDM and 5 parts of butadiene rubber BR into the open mill, and mix evenly at room temperature to obtain the required rubber carrier;

[0029] (2) Add 80 parts of zinc oxide powder, the rubber carrier, 4 parts of fatty acid zinc, 4 parts of oleic acid zinc and 3 parts of vulcanized isobutylene into the internal mixer, and mix at 40°C. The feeding form enters the granulation equipment for granulation, and the short columnar zinc oxide masterbatch particles are obtained through extrusion granulation.

Embodiment 2

[0031] The zinc oxide pre-dispersed masterbatch described in this embodiment is composed of the following components by mass: 80 parts of zinc oxide powder; 5 parts of EPDM; 4 parts of BR; 6 parts of fatty acid zinc; 2 parts of zinc oleate; 3 parts of isobutylene sulfide share.

[0032] The preparation method of the zinc oxide pre-dispersed masterbatch particles described in the present embodiment is as follows:

[0033] (1) Put EPDM and butadiene rubber BR into the open mixer, and mix them uniformly at room temperature to obtain the required rubber carrier;

[0034] (2) Add zinc oxide powder, the rubber carrier, fatty acid zinc, oleic acid zinc and isobutylene vulcanization into the internal mixer, mix at 50°C, and enter the granulation equipment in the form of cold feed after mixing. Granules, after extrusion granulation to obtain short columnar zinc oxide masterbatch particles.

Embodiment 3

[0036] The zinc oxide pre-dispersed masterbatch described in this embodiment is composed of the following components by mass: 80 parts of zinc oxide powder; 6 parts of EPDM; 3 parts of BR; 2 parts of fatty acid zinc; 6 parts of zinc oleate; 3 parts of isobutylene sulfide share.

[0037] The preparation method of the zinc oxide pre-dispersed masterbatch particles described in the present embodiment is as follows:

[0038] (1) Put EPDM and butadiene rubber BR into the open mixer, and mix them uniformly at room temperature to obtain the required rubber carrier;

[0039] (2) Add zinc oxide powder, the rubber carrier, fatty acid zinc, oleic acid zinc and isobutylene vulcanization into the internal mixer, mix at 60°C, and enter the granulation equipment in the form of cold feed after mixing. Granules, after extrusion granulation to obtain short columnar zinc oxide masterbatch particles.

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Abstract

The invention provides a zinc oxide pre-dispersed masterbatch particle, which comprises the following components in parts by mass: 75-85 parts of zinc oxide powder, 6-14 parts of a matrix material, 7-11 parts of a dispersant and 1-3 parts of a plasticizer, wherein the matrix material comprises an ethylene propylene diene monomer EPDM and butadiene rubber BR, the dispersant is composed of a zinc fatty acid and zinc dioleate, and the plasticizer is sulfurized isobutylene. Due to the mutual cooperation of the materials and the mutual influence of molecules, the hardness of the masterbatch particle is reduced, the ash content is increased, and in the process of practical application, the interfusion speed, dispersion speed and dispersion uniformity of the masterbatch particle are significantly increased, the vulcanizing time is short, the vulcanizing effect is good, the energy consumption for blending is reduced, and the production cost is saved.

Description

technical field [0001] The invention relates to a rubber additive, in particular to a zinc oxide pre-dispersed masterbatch and its preparation method and application. Background technique [0002] With the rapid development of the tire industry, both the physical and chemical properties of raw materials in the rubber industry, or the rapid processing characteristics and quality stability of raw materials have put forward higher requirements, in order to meet the requirements of the modern rubber processing industry for high quality and high output , It is very necessary to pre-process traditional rubber additives that are difficult to disperse, mix or measure into pre-dispersed rubber additives. Pre-dispersed rubber additives use polymers as carriers, and disperse traditional rubber additives into polymers through special processes to obtain uniform dispersions with a certain concentration (extrusion granulation). [0003] The rubber processing process usually includes mast...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L9/00C08L9/06C08K13/02C08K3/22C08K5/098C08K5/372C08J3/22
CPCC08J3/226C08J2409/00C08J2409/06C08J2423/16C08K2201/003C08K2201/014C08L9/00C08L9/06C08L23/16C08L2205/03C08K13/02C08K2003/2296C08K5/098C08K5/372
Inventor 李海生胡长海张晓华张明艳金明玥
Owner PANJIN XINANYUAN CHEM IND
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