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第 43 卷第 4 期Vol. 43 No. 4
2013 年 8 月Aug 2013

所屬欄目:功能材料

硫化劑及填料對氯醚橡膠力學(xué)性能和老化性能的影響研究
譚雅婷1,徐建雙2,王 曦1,蘇勝培1* (1. 湖南師范大學(xué) 化學(xué)化工學(xué)院 資源精細化與先進(jìn)材料湖南省高校重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410081; 2. 深圳市博富隆新材料科技有限公司,廣東 深圳 518118)
摘 要:研究了3種硫化劑——2,3-二巰基-喹喔啉(DNR-12A)、三巰基均三嗪(TCY)和亞乙基硫脲(NA-22)及3種填料——高耐磨炭黑(N330)、木質(zhì)素-蒙脫土復合物填料(BL-MMT)和堿性木質(zhì)素(lignin)對共聚型氯醚橡膠(ECO)硫化特性、交聯(lián)密度、力學(xué)性能和老化性能的影響。結果表明,固定填料為N330時(shí),用NA-22硫化的膠料的力學(xué)性能最好,但熱氧老化性能最差;改變填料后NA-22硫化膠料的老化性能得到提高,固定硫化劑為NA-22時(shí),以堿性lignin為填料的膠料的力學(xué)性能與熱氧老化性能均最好,拉伸強度達15.5 MPa,斷裂伸長(cháng)率達394%,100%定伸應力達6.4 MPa,老化后拉伸強度保持率為103.2%。
關(guān)鍵詞:氯醚橡膠;硫化劑;填料;力學(xué)性能;老化性能
中圖分類(lèi)號:TQ333  文獻標識碼:A  文章編號:1009-9212(2013)04-0045-06
Study on Effects of Vulcanizing Agent and Filler to Mechanical Properties and Thermo-oxidative Aging Properties of Epichlorohydrin Rubber
TAN Ya-ting1,XU Jian-shuang2,WANG Xi1,SU Sheng-pei1* (1. College of Chemistry and Chemical Engineering,Key Lab of Sustainable Resources Processing and Advanced Materials,Hunan Normal University,Changsha 410081,China;2. Shenzhen Prosperous New Materials Co.,Ltd.,Shenzhen 518118,China )
Abstract:Effects of three kinds of vulcanizing agents (2,3-dithiolquinoxalines,trithiocyanuric acid and ethylene thiourea)and three kinds of fillers (carbon black,lignin-montmorillonite complex and alkalescent lignin)on the curing characteristics,crosslinking densities,mechanical properties and thermo-oxidative aging properties of epichlorohydrin rubber have been evaluated. The experimental results indicated that when carbon black was fixed as the filler,the rubber cured with ethylene thiourea possess the best mechanical properties and the worst thermo-oxidative aging properties. When ethylene thiourea was used as the vulcanizing agent,the rubber filled with alkalescent lignin possess the best mechanical properties and thermo-oxidative aging properties. The tensile strength of rubber composite is 15.5 MPa;the elongation at break is 394%;the 100% modulus is 6.4 MPa;and the retention of tensile strength is 103.2%.
Key words:epichlorohydrin rubber;vulcanizing agent;filler;mechanical property;thermo-oxidative aging property
基金項目:湖南師范大學(xué)瀟湘學(xué)者啟動(dòng)資金資助課題(化050613),深圳市戰略新興產(chǎn)業(yè)發(fā)展專(zhuān)項資金(CXZZ20120830161412161)。
作者簡(jiǎn)介:譚雅婷(1989-),女,湖南津市人,碩士研究生,研究方向:高分子復合材料。(E-mail:tanyating413@gmail.com)
聯(lián) 系 人: 蘇勝培,教授,博士生導師,研究方向:高分子復合材料。(E-mail:sushengpei@gmail.corn)
收稿日期: 2013-08-2
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