Process for improving chloroprene mixed rubber scorching performances

A neoprene and mixed rubber technology, which is applied in the field of rubber mixing, can solve the problems of economic loss, expired and scrapped mixed rubber, etc., and achieve the effect of improving scorch performance and ensuring processing safety

Active Publication Date: 2016-02-03
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, many rubber and plastic companies around the world are carrying out the takeaway compound business. At the same time, many companies entrust other rubber and plastic companies to process services because they cannot meet the production capacity requirements. The prolongation of the release time will cause self-scorch and lead to the overdue scrapping of the compounded rubber, which will bring huge economic losses to these enterprises. Therefore, it is imperative to develop a process to improve the scorch performance of neoprene compounded rubber.

Method used

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  • Process for improving chloroprene mixed rubber scorching performances
  • Process for improving chloroprene mixed rubber scorching performances
  • Process for improving chloroprene mixed rubber scorching performances

Examples

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Embodiment 1

[0023] A kind of rubber compound that improves chloroprene rubber scorch performance, and its preferred parts by weight are composed as follows:

[0024] Masterbatch components: 100 parts of neoprene, 1 part of accelerator, 1 part of stearic acid, 2 parts of protective wax, 1 part of anti-aging agent OCT, 40 parts of fast extruded carbon black N55040 parts, 30 parts of semi-reinforcing carbon black N77430, decane 20 parts of dioctyl esters.

[0025] Small material components: 31002 parts of anti-aging agent, 2 parts of anti-aging agent 4010NA, 5 parts of vulcanizing agent. Wherein, the vulcanizing agent is magnesium oxide and zinc oxide or ZIMAG29 / 43.

[0026] A kind of mixing process of the mixed rubber that improves chloroprene rubber scorch performance comprises the following steps:

[0027] (1) Initial mixing: Add 100 parts of neoprene to the internal mixer to press the top bolt, after 30 seconds, raise the top bolt, add 70 parts of carbon black, 20 parts of plasticizer ...

Embodiment 2

[0030] A kind of rubber compound that improves chloroprene rubber scorch performance, and its preferred parts by weight are composed as follows:

[0031] Masterbatch components: 90 parts of neoprene, 0.5 parts of accelerator, 0.8 parts of stearic acid, 1.5 parts of protective wax, 2.5 parts of antioxidant OCT, 20 parts of fast extrusion carbon black N55020 parts, 20 parts of semi-reinforcing carbon black N77420 parts, Dioctyl sebacate 15 parts.

[0032] Small material components: 31003 parts of anti-aging agent, 1 part of anti-aging agent 4010NA, 9 parts of vulcanizing agent. Wherein, the vulcanizing agent is magnesium oxide and zinc oxide or ZIMAG29 / 43.

[0033] A kind of mixing process of the mixed rubber that improves chloroprene rubber scorch performance comprises the following steps:

[0034] (1) Initial mixing: Add 90 parts of neoprene to the internal mixer to press the top bolt, after 30 seconds, raise the top bolt and add 40 parts of carbon black, 15 parts of plastic...

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Abstract

The invention discloses a process for improving chloroprene mixed rubber scorching performances. The mixed rubber comprises, by weight, a masterbatch ingredient comprising 70-100 parts of chloroprene rubber, 1-3 parts of a promoter, 0.5-2 parts of stearic acid, 1-3 parts of protection wax, 1-3.5 parts of an antiager OCT, 20-80 parts of fast extruding furnace black N550, 20-70 parts of semi-reinforcing furnace black N774 and 10-50 parts of dioctyl sebacate, and an auxiliary material ingredient comprising 1-3 parts of an antiager 3100, 1-2.5 parts of an antiager 4010NA and 2-10 parts of a vulcanizing agent. The mixing process comprises 1, initial stage mixing and 2, tail stage auxiliary material addition and mixing. Compared with the existing mixing process, the process provided by the invention improves mixing processes, changes a material use order by prior use of a part of the promoter and later use of all vulcanizing agent and a part of antiagers in masterbatch preparation to improve mixed rubber scorching time, and guarantees a mixed rubber transport and storage period and processing safety.

Description

technical field [0001] The invention belongs to the technical field of rubber mixing, and in particular relates to a process method for improving the scorch performance of neoprene rubber mixing rubber. Background technique [0002] At present, many rubber and plastic companies around the world are carrying out the takeaway compound business. At the same time, many companies entrust other rubber and plastic companies to process services because they cannot meet the production capacity requirements. The prolongation of the release time will cause self-scorch and lead to the overdue scrapping of the compounded rubber, which will bring huge economic losses to these enterprises. Therefore, it is imperative to develop a process to improve the scorch performance of neoprene compounded rubber. . Contents of the invention [0003] The purpose of the present invention is to develop a new rubber mixing process. The innovation of this process is to add the components that prolong th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08K13/02C08K3/04C08K5/11C08K5/09C08K3/22B29B7/00
Inventor 王胜王定东邹惠芳
Owner NANJING ORIENTLEADER TECH CO LTD
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