| 淀粉/SBR复合材料结构和性能的研究 |
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| 引用本文： | 齐卿,吴友平,梁桂花,张立群.淀粉/SBR复合材料结构和性能的研究[J].橡胶工业,2007,54(4):197-202. |
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| 作者姓名： | 齐卿 吴友平 梁桂花 张立群 |
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| 作者单位： | 1. 北京化工大学,纳米材料先进制备技术与应用科学教育部重点实验室,北京,100029;北京化工大学,北京市新型高分子材料制备与成型加工重点实验室,北京,100029
2. 北京化工大学,北京市新型高分子材料制备与成型加工重点实验室,北京,100029 |
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| 基金项目： | 国家自然科学基金;北京市教委科研项目 |
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| 摘 要： | 采用淀粉水溶液与丁苯胶乳共混共凝聚的方法制备淀粉／SBR复合材料，并对其结构和性能进行研究。结果表明，与SBR相比，淀粉／SBR复合材料的焦烧时间缩短，硫化速度减慢，且随着淀粉用量的增大，复合材料的ML和MH增大，邵尔A型硬度、300％定伸应力、拉伸强度和撕裂强度显著增大；淀粉与SBR形成较好的界面结合，淀粉在SBR基体中分散粒径较小；随着淀粉用量的增大，复合材料的剪切储能模量增大，高温拉伸储能模量逐渐增大，只有一个玻璃化温度，不具有两相结构的特征。
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| 关 键 词： | 淀粉 丁苯胶乳 复合材料 改性 补强 |
| 文章编号： | 1000-890X(2007)04-0197-06 |
| 修稿时间： | 2006-10-18 |
Structure and properties of starch/SBR composite |
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| QI Qing,WU You-ping,LIANG Gui-hua and ZHANG Li-qun.Structure and properties of starch/SBR composite[J].China Rubber Industry,2007,54(4):197-202. |
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| Authors: | QI Qing WU You-ping LIANG Gui-hua and ZHANG Li-qun |
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| Affiliation: | Beijing University of Chemical Technology,Beijing 100029,China |
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| Abstract: | A starch/SBR composite was prepared by blending and co-coagulation of water solution of starch and SBR latex,and its structure and properties were investigated. The results showed that in comparison to SBR,the starch/SBR composite gave shorter scorch time and lower curing rate,and as the starch loading increased,ML and MH of the composite increased,and its Shore A hardness, modulus at 300%, tensile strength and tear strength increased significantly; a better boundary bonding was formed between starch and SBR,and the starch with smaller particle size was dispersed in SBR matrix;as the starch loading increased,the shear storage modulus of the composite increased and the tensile storage modulus at high temperature increased gradually;and the composite had only one Tg temperature indicating no characteristics of two-phase structure. |
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| Keywords: | starch SBR latex composite modification reinforcement |
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