纳米氧化锌/二氧化硅杂化体的制备及其对天然橡胶复合材料性能的影响

doi:10.16085/j.issn.1000-6613.2020-0409

化工进展 ›› 2020, Vol. 39 ›› Issue (8): 3213-3220.DOI: 10.16085/j.issn.1000-6613.2020-0409

纳米氧化锌/二氧化硅杂化体的制备及其对天然橡胶复合材料性能的影响

李宜航¹(), 熊玉竹¹^,²(), 张清坡¹, 吴江兵¹

^1.贵州大学材料与冶金学院，贵州贵阳 550025
^2.贵州省橡胶复合材料工程实验室，贵州贵阳 550025

出版日期:2020-08-01 发布日期:2020-08-12
通讯作者: 熊玉竹
作者简介:李宜航（1994—），男，硕士研究生，研究方向为功能橡胶助剂的制备。E-mail: liyih23@163.com。
基金资助:
国家自然科学基金(51663003);贵州省科技计划([2019]2166)

Preparation of nano zinc oxide/silica hybrid and its effect on properties of natural rubber composites

Yihang LI¹(), Yuzhu XIONG¹^,²(), Qingpo ZHANG¹, Jiangbing WU¹

^1.College of Materials and Metallurgy, Guizhou University, Guiyang 550025, Guizhou, China
^2.Guizhou Province Engineering Laboratory for Rubber Composites, Guizhou University, Guiyang 550025, Guizhou, China

Online:2020-08-01 Published:2020-08-12
Contact: Yuzhu XIONG

摘要/Abstract

摘要：

采用3-氰基丙基三乙氧基硅烷（CTOS）对二氧化硅（SiO₂）进行了氰基化改性，并采用热溶剂法将纳米ZnO沉积于氰基官能化SiO₂（SiO₂-CN）表面，制备出纳米氧化锌/二氧化硅杂化体（ZnO@SiO₂），并使用X射线衍射仪、傅里叶变换红外光谱仪、扫描电镜等对杂化结构进行表征。将ZnO@SiO₂作为填料添加入天然橡胶中制备复合材料（NR/ZnO@SiO₂），然后对ZnO@SiO₂与橡胶的界面关系进行了分析，并研究了ZnO@SiO₂对橡胶复合材料的硫化特性、力学性能的影响。结果表明，纳米ZnO成功沉积在SiO₂-CN表面，并且NR/ZnO@SiO₂复合材料表现出优异的机械性能和硫化特性。与天然橡胶相比，仅添加5份杂化体的NR/ZnO@SiO₂复合材料的拉伸强度、100%定伸及300%定伸强度分别增加了150.2%、86.2%和65.5%，并且正硫化时间缩短了38.5%。

关键词: 纳米氧化锌, 二氧化硅改性, 杂化结构, 橡胶复合材料

Abstract:

SiO₂ particles were cyano-functionalized by 3-cyanopropyltriethoxysilane (CTOS), and ZnO/SiO₂ hybrids (ZnO@SiO₂) were produced by deposition of the ZnO nanoparticles on cyano-functionalized SiO₂ (SiO₂-CN) surface via a facile solvothermal method. The hybrid structures were analyzed by X-ray diffractometer, Fourier transform infrared spectrometer and scanning electron microscope. ZnO@SiO₂ was used as a filler to prepare NR/ZnO@SiO₂ composites, and the interface relationship between ZnO@SiO₂ and rubber was studied. In addition, the influence of ZnO@SiO₂ on the vulcanization characteristics and mechanical properties of rubber composites was analyzed. As a result, ZnO nanoparticles was successfully deposited on the surface of SiO₂-CN, and NR/ZnO@SiO₂ composites exhibited excellent mechanical properties and vulcanization characteristics. Compared with natural rubber, the tensile strength, stress at 100% strain, and stress at 300% strain of NR/ZnO@SiO₂ composites with 5 phr hybrids were superlatively increased by 150.2%, 86.2% and 65.5%, respectively, and the curing time was reduced by 38.5%.

Key words: zinc oxide nanoparticles, silica modification, hybrid structure, rubber composites

中图分类号:

TB332

李宜航, 熊玉竹, 张清坡, 吴江兵. 纳米氧化锌/二氧化硅杂化体的制备及其对天然橡胶复合材料性能的影响[J]. 化工进展, 2020, 39(8): 3213-3220.

Yihang LI, Yuzhu XIONG, Qingpo ZHANG, Jiangbing WU. Preparation of nano zinc oxide/silica hybrid and its effect on properties of natural rubber composites[J]. Chemical Industry and Engineering Progress, 2020, 39(8): 3213-3220.

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纳米氧化锌/二氧化硅杂化体的制备及其对天然橡胶复合材料性能的影响

Preparation of nano zinc oxide/silica hybrid and its effect on properties of natural rubber composites

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