第 41 卷第 5 期 |  | Vol. 41 No. 5 | 2011 年 10 月 | Oct 2011 |
|
所屬欄目:功能材料
黑液/高嶺土復合物在丁腈橡膠和丁苯橡膠中的應用研究 |
廖澤棟1,2,曹仲林1,2,王 曦1,2,蘇勝培1,2 *
(1. 湖南師范大學(xué),湖南 長(cháng)沙 410081;2. 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) |
摘 要:通過(guò)絮凝沉降法制備了一種復合補強劑——黑液/高嶺土復合物(CLK),將其分別與丁腈橡膠(NBR)和丁苯橡膠(SBR)共混制備了NBR/CLK與SBR/CLK復合材料?疾炝薈LK的添加量對橡膠復合材料硫化特性、交聯(lián)密度、力學(xué)性能、熱氧老化性能以及熱降解性能的影響。結果表明:隨著(zhù)CLK含量的增加,在NBR/CLK復合材料體系中,焦燒時(shí)間、正硫化時(shí)間和硫化速度指數先增加而后逐漸降低;交聯(lián)密度和力學(xué)性能則逐漸增大;老化性能及熱性能沒(méi)有顯著(zhù)改善。在SBR/CLK復合材料中,焦燒時(shí)間、硫化速度指數先增加而后逐漸降低,正硫化時(shí)間先減少而后逐漸增加;交聯(lián)密度和力學(xué)性能則逐漸增大;老化性能沒(méi)有顯著(zhù)改善,但熱性能得到了提高。 |
關(guān)鍵詞:黑液/高嶺土復合物;丁腈橡膠;丁苯橡膠;力學(xué)性能 |
中圖分類(lèi)號:TQ333 文獻標識碼:A 文章編號:1009-9212(2011)05-0053-05 |
|
Study on the Application of Complex of Black Liquor and Kaolin in Acrylonitrile-butadiene Rubber and Styrene-butadiene Rubber |
LIAO Ze-dong1,2,CAO Zhong-lin1,2,WANG Xi1,2,SU Sheng-pei1,2*
(1. College of Chemistry and Chemical Engineering,Changsha 410081,China;2. Key Lab of Sustainable Resources Processing and Advanced Materials,Hunan Normal University,Changsha 410081,China) |
Abstract:A synthetic reinforcing agent,complex of black liquor and kaolin(CLK) was prepared by coagulation-precipitation method,and then acrylonitrile-butadiene rubber(NBR)/CLK and styrene-butadiene rubber (SBR)/CLK composites were prepared by blending NBR or SBR with CLK using mechanical mixer. The effects of the loading of CLK on cure characteristics,the cross-linking densities,the mechanical properties,the thermal properties and the thermo-oxidative ageing properties were evaluated. The results showed that with the increase of CLK loading,in NBR/CLK composites,the scorch time,optimum cure time and cure rate index firstly increased and then decreased,cross-linking densities and mechanical properties increased gradually. However,the thermal oxidative ageing and thermal properties had no obvious improvement. In SBR/CLK composites,the scorch time and cure rate index started to increase and then decreased,optimum cure time started to decrease and then increased,cross-linking densities,mechanical properties and thermal degradation properties increased gradually. However,the thermal oxidative ageing decreased. |
Key words:complex of black liquor and kaolin;NBR;SBR;mechanical properties |
|
基金項目:湖南師范大學(xué)瀟湘學(xué)者啟動(dòng)基金資助課題(化050613)。
|
作者簡(jiǎn)介:廖澤棟(1980-),男,湖南常寧人,博士研究生,研究方向:橡膠復合材料。(E-mail:liaozedong80@126.com)
|
聯(lián) 系 人:蘇勝培,教授,博士生導師。(E-mail:shengpeisu@gmail.com)
|
收稿日期:2011-09-08
|
|