Study on sulfur vulcanized natural rubber formulated with nitrosamine safe diisopropyl xanthogen polysulfide/tertiary butyl benzothiazole sulphenamide binary accelerator system

IF 1.1 4区材料科学 Q4 MATERIALS SCIENCE, COMPOSITES Progress in Rubber Plastics and Recycling Technology Pub Date : 2020-12-11 DOI:10.1177/1477760620977499

I. Samarasinghe, S. Walpalage, D. Edirisinghe, S. Egodage

{"title":"Study on sulfur vulcanized natural rubber formulated with nitrosamine safe diisopropyl xanthogen polysulfide/tertiary butyl benzothiazole sulphenamide binary accelerator system","authors":"I. Samarasinghe, S. Walpalage, D. Edirisinghe, S. Egodage","doi":"10.1177/1477760620977499","DOIUrl":null,"url":null,"abstract":"An outstanding interest on elimination of nitrosamine generation in traditional sulfur vulcanization systems has led to introduce nitrosamine safe accelerator/s to produce safe natural rubber (NR) vulcanizates. It is an effective way to prevent formation of carcinogenic N-nitroso compounds during manufacture of rubber products. In the present study, behavior of nitrosamine safe binary accelerator system consisting of diisopropyl xanthogen polysulfide (DIXP) with commonly used non-regulated accelerator N-tert-butyl-2-benzothiazole sulfenamide (TBBS) was investigated in efficient sulfur vulcanization of NR. Cure characteristics, physico-mechanical properties and crosslink density of vulcanizates prepared with different combinations of the accelerator system were evaluated and compared with those of individual accelerators. The study reveals that moduli and strength properties of the vulcanizate prepared with DIXP accelerator are inferior to those of the vulcanizate prepared with TBBS accelerator. Nevertheless, optimum cure time of the DIXP compounds is lower in comparison to TBBS compounds. Moreover, progressive replacement of DIXP with TBBS in the accelerator system showed a synergistic effect in regard to cure characteristics and physico-mechanical properties.","PeriodicalId":20860,"journal":{"name":"Progress in Rubber Plastics and Recycling Technology","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Rubber Plastics and Recycling Technology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1177/1477760620977499","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}

引用次数: 8

Abstract

An outstanding interest on elimination of nitrosamine generation in traditional sulfur vulcanization systems has led to introduce nitrosamine safe accelerator/s to produce safe natural rubber (NR) vulcanizates. It is an effective way to prevent formation of carcinogenic N-nitroso compounds during manufacture of rubber products. In the present study, behavior of nitrosamine safe binary accelerator system consisting of diisopropyl xanthogen polysulfide (DIXP) with commonly used non-regulated accelerator N-tert-butyl-2-benzothiazole sulfenamide (TBBS) was investigated in efficient sulfur vulcanization of NR. Cure characteristics, physico-mechanical properties and crosslink density of vulcanizates prepared with different combinations of the accelerator system were evaluated and compared with those of individual accelerators. The study reveals that moduli and strength properties of the vulcanizate prepared with DIXP accelerator are inferior to those of the vulcanizate prepared with TBBS accelerator. Nevertheless, optimum cure time of the DIXP compounds is lower in comparison to TBBS compounds. Moreover, progressive replacement of DIXP with TBBS in the accelerator system showed a synergistic effect in regard to cure characteristics and physico-mechanical properties.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

亚硝胺安全型二异丙基原硫聚硫/叔丁基苯并噻唑磺胺二元促进体系的硫化天然橡胶研究

为了消除传统硫化体系中亚硝胺的产生，人们引入了亚硝胺安全促进剂来生产安全的天然橡胶(NR)硫化胶。这是防止橡胶制品生产过程中产生致癌物n -亚硝基化合物的有效途径。本文研究了由二异丙基原硫多元硫化(DIXP)和常用的无调节促进剂n-叔丁基-2-苯并噻唑磺胺(TBBS)组成的亚硝胺安全二元促进剂体系在NR高效硫硫化中的行为。对不同促进剂组合制备的硫化胶的物理力学性能和交联密度进行了评价，并与单独的促进剂进行了比较。研究表明，DIXP促进剂制备的硫化胶的模量和强度性能不如TBBS促进剂制备的硫化胶。然而，与TBBS化合物相比，DIXP化合物的最佳固化时间较短。此外，在加速剂系统中，用TBBS逐步替代DIXP，在固化特性和物理力学性能方面显示出协同效应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Progress in Rubber Plastics and Recycling Technology MATERIALS SCIENCE, COMPOSITES-POLYMER SCIENCE

CiteScore

4.40

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： The journal aims to bridge the gap between research and development and the practical and commercial applications of polymers in a wide range of uses. Current developments and likely future trends are reviewed across key areas of the polymer industry, together with existing and potential opportunities for the innovative use of plastic and rubber products.