Simulation of beta-dextranase from raw natural rubber to investigate structure and properties of natural rubber/halloysite composites

文献类型： 外文期刊

第一作者： Xu, Tiwen

作者： Xu, Tiwen;Xin, Yuanni;Li, Haifeng;Ban, Jianfeng;Yang, Ying;Wang, Yueqiong;Liao, Lusheng

作者机构：

关键词： interfaces; mechanical properties; rubber; structure-property relations

期刊名称：POLYMER COMPOSITES （ 影响因子：3.171； 五年影响因子：2.877 ）

ISSN： 0272-8397

年卷期：

页码：

收录情况： SCI

摘要： The effects of crude beta-dextranase in raw natural rubber (NR) on the structure and properties of NR/halloysite nanotube (HNT) composites are investigated by introducing external biological beta-dextranase. Results of curing tests as well as mechanical and dynamic mechanical analyses show that the curing time of the composite increases with beta-dextranase concentration and then plateaus at 6 wt%, at which the maximum values of the elastic modulus, tensile strength, and crosslink density are achieved and the lowest hysteresis loss factor at 0-80 degrees C is observed. Morphological investigations show that the addition of beta-dextranase improves the dispersion of HNTs and enhances interfacial adhesion in the composites owing to hydrogen bonds between beta-dextranase and HNTs, as revealed by Fourier-transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy analyses. We envision the use of beta-dextranase in NR as a novel interfacial modifier in NR composites.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序