| 第 41 卷第 2 期 |  | Vol. 41 No. 2 | | 2011 年 4 月 | Apr 2011 |
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所属栏目：功能材料
黑液-硅藻土共沉物在丁腈橡胶与丁苯橡胶中的应用研究 |
| 廖泽栋，王 曦，曹仲林，蒋喜龙，苏胜培*
（湖南师范大学 化学化工学院 资源精细化与先进材料湖南省高校重点实验室，湖南 长沙 410081） |
| 摘 要：通过絮凝-酸沉降法制备了一种复合补强剂——黑液-硅藻土共沉物（CLD），将其分别与丁腈橡胶（NBR）和丁苯橡胶（SBR）机械共混制得NBR／CLD与SBR／CLD复合材料。考察了CLD的含量对橡胶复合材料硫化特性、交联密度、力学性能、热氧老化性能以及热性能的影响。结果表明：随着CLD的加入，焦烧时间与正硫化时间逐渐降低，硫化速度逐渐提高；交联密度逐渐增加；力学性能逐渐增强；但老化性能及热性能没有得到改善。 |
| 关键词：黑液硅藻土共沉物；丁腈橡胶；丁苯橡胶；力学性能 |
| 中图分类号：TQ333 文献标识码：B 文章编号：1009-9212（2011）02-0051-05 |
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| Study on Application of Co-precipitate of Lignin and Diatomite in Acrylonitrile-butadiene Rubber and Styrene-butadiene Rubber |
| LIAO Ze-dong，WANG Xi，CAO Zhong-lin，JIANG Xi-long，SU Sheng-pei*
（College of Chemistry and Chemical Engineering，Key Lab of Sustainable Resources Processing and Advanced Materials，Hunan Normal University，Changsha 410081，China） |
| Abstract：A synthetic reinforcing agent，co-precipitate of lignin and diatomite（CLD） was prepared by means of coagulation and acid precipitation，and then acrylonitrile-butadiene rubber（NBR）／CLD and styrene-butadiene rubber（SBR）／CLD composites were prepared by blending NBR or SBR with CLD under mechanical mixing. The effects of the loading of CLD on curing characteristics，cross-linking densities，mechanical properties，thermal properties and thermo-oxidative ageing properties were evaluated. The results showed the scorch time and optimum cure time were reduced and a remarkable enhancement in cross-linking densities and mechanical properties was observed，however，the thermal oxidative ageing properties decreased with the increase of CLM loading. |
| Key words：co-precipitation of black liquid and diatomite；NBR；SBR；mechanical properties |
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基金项目：湖南师范大学潇湘学者启动基金资助课题（化050613）。
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作者简介：廖泽栋（1980-），男，湖南常宁人，博士研究生，研究方向：橡胶复合材料。（E-mail：liaozedong80@126.com）
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联 系 人： 苏胜培，教授，博士生导师。（E-mail：shengpeisu@gmail.com）
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收稿日期：011-03-21
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