开发与应用

防老剂对EUG/NR并用胶性能的影响

展开
  • 1.沈阳化工大学材料科学与工程学院,沈阳110142;
    2.辽宁省橡胶弹性体重点实验室,沈阳110142
张超(1994-),男,硕士研究生,主要从事橡胶复合材料研究工作。

收稿日期: 2019-08-26

  修回日期: 2020-08-05

  网络出版日期: 2021-01-21

基金资助

国家重点研发项目计划(2017YFB0306902);国家自然科学基金(51573098)

Influence of antioxidant on the property of EUG/NR blend

Expand
  • 1. School of Material Science and Engineering,Shenyang University of Chemical Technology,Shenyang 110142;
    2. Key Laboratory for Rubber Elastomer of Liaoning Province,Shenyang University of Chemical Technology,Shenyang 110142

Received date: 2019-08-26

  Revised date: 2020-08-05

  Online published: 2021-01-21

摘要

研究了不同防老剂对杜仲胶/天然橡胶(EUG/NR)并用胶性能及其热氧老化性能的影响。利用扫描电子显微镜、差示扫描量热仪、热重分析仪、万用拉伸机对并用胶的微观形貌、结晶熔融行为、热稳定性及力学性能进行了测试和表征。结果表明:防老剂的加入有助于并用胶的硫化,能够提高并用胶的力学性能;在热氧老化条件下防老剂4010NA对并用胶的防护效果最佳;并用胶在老化过程中EUG相先发生反应,防老剂4010NA主要延缓并用胶中EUG相交联网络的进一步交联。热重分析表明老化24h后,EUG/NR并用胶的分子主链及交联网络未出现明显的破坏。

本文引用格式

张超, 康海澜, 杨凤, 方庆红 . 防老剂对EUG/NR并用胶性能的影响[J]. 化工新型材料, 2020 , 48(12) : 255 -260 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.059

Abstract

The effects of different antioxidants on the thermal oxidative aging properties of eucommia ulmoides gum(EUG)/natural rubber(NR) blends were studied.The microstructure,crystallization and melting behavior,thermal stability and mechanical properties of the blends were tested and characterized by SEM,DSC,TGA and universal drawing machine.The results showed that the addition of antioxidant was helpful to the vulcanization and the mechanical properties of the blends were improved;The antioxidant 4010NA had the best protective effect on the combined glue under the condition of thermal oxidative aging.The EUG phase reacted first in the aging process,and 4010NA mainly delayed the further crosslinking of EUG phase network in blends.Thermogravimetric analysis showed that the main molecular chain and crosslinking network of EUG/NR did not appear obvious damage after 24h aging.

参考文献

[1] 杜红岩.我国的杜仲胶资源及其开发潜力与产业发展思路[J].经济林研究,2010,28(3):1-6.
[2] 朱峰,岳红,祖恩峰,等.杜仲胶对三元共混硫化胶性能的影响[J].西安理工大学学报,2006,22(1):99-101.
[3] Baboo M.Study on thermal and mechanical properties of cis- and trans-polyisoprene blends implanted by carbon ions[J].Nuclear Instruments & Methods in Physics Research,2011,269(21):2479-2486.
[4] Mahesh Baboo,Kananbala Sharma,Saxena N S.Viscosity,glass transition and activation energy of solid cis-polyisoprene and trans-polyisoprene blends[J].Phase Transitions,2011,84(11/12):901-907.
[5] 王思静,熊金平,左禹.橡胶老化机理与研究方法进展[J].合成材料老化与应用,2009,38(2):23-33.
[6] 杨清芝.现代橡胶工艺学[M].北京:中国石化出版社,1997.
[7] 金冰,胡小锋,魏伯荣,等.天然橡胶的热氧老化研究[J].特种橡胶制品,2003,24(2):43-46.
[8] 李强国,陈新,张卓,等.实验与分子模拟法结合探究防老剂对天然橡胶热氧老化的防护机理[J].高分子材料科学与工程,2018,34(1):106-111;118.
[9] 黄俊,李春,陈咏梅,等.4010NA接枝聚异戊二烯大分子防老剂的制备及在天然橡胶中的抗老化性能[J].合成橡胶工业,2013,36(5):386-389.
[10] 秦颖,马驹,陈春花,等.胺类防老剂及其并用对三元乙丙橡胶性能的影响[J].合成橡胶工业,2017,40(4):320-324.
[11] 王琎,康海澜,杨凤,等.杜仲胶/天然橡胶并用硫化胶的力学性能[J].高分子材料科学与工程,2017,33(8):62-67.
[12] 刘倩,岳红,江浩,等.杜仲胶/天然橡胶共混物的分子动力学模拟和耗散粒子动力学模拟[J].材料导报,2012,26(6):141-145.
[13] 姚薇,孙静,邵华锋,等.环氧化反式异戊橡胶/天然橡胶并用胶的疲劳和动态性能[J].高分子材料科学与工程,2013,29(9):44-47.
[14] 李良萍,李翔,薛兆弘,等.天然橡胶/杜仲胶共混硫化胶性能研究[J].特种橡胶制品,2001(3):1-3.
Options
文章导航

/