| 胶乳共混法天然橡胶/二氧化硅纳米复合材料的制备及性能 |
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| 引用本文： | 罗勇悦,邱权芳,冯春芳,李永振,彭政.胶乳共混法天然橡胶/二氧化硅纳米复合材料的制备及性能[J].高分子材料科学与工程,2010(6):152-154,158. |
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| 作者姓名： | 罗勇悦 邱权芳 冯春芳 李永振 彭政 |
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| 作者单位： | 中国热带农业科学院农产品加工研究所农业部热带作物加工重点开放实验室;中国热带农业科学院橡胶研究所 |
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| 基金项目： | 国家自然科学基金资助项目(50763006);科技部科研院所技术开发研究专项资金(2008EG134285)资助;海南省自然科学基金资助项目(807048);中国热带农业科学院橡胶研究所基本科研业务费专项资金(XJSYWFZX2008-30) |
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| 摘 要： | 采用胶乳共混法制备天然橡胶/二氧化硅(NR/SiO2)纳米复合材料。先用硅烷偶联剂KH-570对纳米二氧化硅进行改性,再经乳液聚合接枝上聚甲基丙烯酸甲酯(PMMA)得到PMMA-SiO2粒子,最后将其与用MMA改性的天然胶乳(NR-PMMA)共混制得NR/SiO2纳米复合材料。采用红外光谱仪、透射电镜、扫描电镜、热重分析仪、橡胶拉伸测试机对样品进行了表征。实验结果表明,PMMA成功地接枝于SiO2表面,PMMA-SiO2在橡胶基体中分散均匀,平均粒径在60nm～80nm之间,复合材料的拉伸强度比纯的NR提高了35%,定伸应力也有显著提高。
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| 关 键 词： | 纳米二氧化硅 天然橡胶 纳米复合材料 胶乳共混法 |
Natural Rubber/Silica Nanocomposites Using ‘Latex Compounding Techniques’:Preparation and Properties |
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| LUO Yong-yue,QIU Quan-fang,FENG Chun-fang,LI Yong-zhen,PENG Zheng.Natural Rubber/Silica Nanocomposites Using ‘Latex Compounding Techniques’:Preparation and Properties[J].Polymer Materials Science & Engineering,2010(6):152-154,158. |
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| Authors: | LUO Yong-yue QIU Quan-fang FENG Chun-fang LI Yong-zhen PENG Zheng |
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| Affiliation: | 1(1.Agricultural Product Processing Research Institute at Chinese Academy of Tropical Agricultural Sciences,Chinese Agricultural Ministry Key Laboratory of Tropical Crop Products Processing,Zhanjiang 524001,China;2.Rubber Research Institute at Chinese Academy of Tropical Agricultural Sciences,Danzhou 571737,China) |
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| Abstract: | Natural rubber/nanosilica(NR/SiO2) composite was developed with latex compounding techniques.SiO2 was firstly modified by KH570,and then grafted with polymethyl methacrylate (PMMA) through polymerization in order to obtain SiO2-PMMA nanoparticles.Finally,NR/SiO2 nanocomposites were formed,blending SiO2-PMMA with NR-PMMA.The Fourier transform infrared spectroscopy (FT-IR),transmission electron microscopy (TEM),scanning electron microscopy (SEM),thermal gravimetric analysis (TGA) and mechanical characterization results showed that PMMA has been successfully introduced onto the surface of SiO2.SiO2-PMMA nanoparticles are homogenously distributed throughout NR matrix,with the average particle range from 60 nm to 80 nm.The tensile strength of NR/SiO2 composite,compared to the pure NR,is enhanced by 35%. |
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| Keywords: | nano-silica natural rubber nanocomposite latex compound |
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