| 微晶纤维素-SiO2杂化纳米填料的制备及应用研究 |
| Studies on the Preparation and Application of Microcrystalline Cellulose-SiO2 hybrid nanofiller |
| 投稿时间：2016-09-09 修订日期：2016-09-09 |
| DOI： |
| 中文关键词: 微晶纤维素 杂化填料 微反应器 橡胶 |
| 英文关键词: microcrystalline cellulose hybrid filler microreactor rubber |
| 基金项目:国家自然科学基金(51372128)、亚热带农业生物资源保护与利用国家重点实验室开放课题资助(SKL201402)。 |
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| 中文摘要: |
| 以正硅酸乙酯为硅源,采用“微反应器”技术,在微晶纤维素(MCC)表面负载纳米级别的SiO2,得到MCC-SiO2杂化体。红外光谱(IR)热失重(TG)和扫描电镜分析(SEM)表明不同形态结构的纳米级别的SiO2成功的负载在微晶纤维素表面。将MCC-SiO2杂化体应用于橡胶体系,结果发现MCC杂化改性后补强性能提高,硫化胶的tanδ值在0℃时明显提高,而在60℃时下降。SEM分析测试结果表明MCC杂化改性后在橡胶基体粒径变小,达到原位微细化的目的,同时MCC-橡胶的界面结合性能提高。 |
| 英文摘要: |
| The microcrystalline cellulose (MCC) was hybrid modified with SiO2 nanoparticles, which was in-situ loaded on its surface through microreactor technique using tetraethoxysilane (TEOS) as precursor. The results of IR, TG and SEM showed that nano-SiO2 with different structure were successfully loaded on the surface of MCC. When the MCC-SiO2 hybrids were used in rubber compounds, its reinforcement improved, furthermore, the tanδ value improved at 0℃ and decreased at 60℃. From SEM photos, it was observed that the size of MCC was in-situ decreased during the processes of rubber compounds and the interface adhesion between MCC and rubber was also improved. |
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