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Preparation and properties of g-C3N4 on natural rubber latex films

文献类型： 外文期刊

作者： Chen, Jing 1 ; Liao, Lusheng 2 ; Zhang, Fuquan 2 ; Gao, Tianming 1 ; Lin, Jiazhao 1 ; Wu, Jianglun 1 ; Zhang, Yinhao 1 ;

作者机构： 1.Lingnan Normal Univ, Sch Chem & Chem Engn, Key Lab Clean Energy Mat Chem, Guangdong Higher Educ Inst, Zhanjiang, Peoples R China

2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Minist Agr & Rural Affairs, Key Lab Trop Crop Prod Proc, Guangzhou 524001, Guangdong, Peoples R China

关键词： g-C3N4; mechanical properties; natural rubber latex; reinforcement

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： 2020 年 41 卷 8 期

页码：

收录情况： SCI

摘要： Natural rubber (NR) latex was used as template, melamine as precursors, g-C3N4 (CN) were synthesized by thermal polymerization. The results of structure and morphology show that CNs have obvious two-dimensional laminar structure and improved specific surface area, the specific surface area attend to 40.26 m(2)/g and 2.4 times to no NR latex added CN (0%-CN) when 4 wt% NR latex added (4%-CN). The CN (4%-CN) particles were then compounded with NR latex to prepare NR/CN composites. The results of mechanical properties show that the tensile modulus, tear strength and the cross-link density of NR/CN films increase with increment of CN loading, the mechanical properties improved obviously even just 1phr CN added. The SEM of tensile fracture surface show that CNs and NR combined firmly and the section is very rough. DMA results show that the addition of CNs increase glass transition temperature (T- g) and decrease the peak values of tan delta. The mechanical properties of the NR/CN films were fitted by Guth-Smallwood and Halpin-Tsai models to understand the CN's reinforcing behavior. The dramatically improved mechanical properties and thermal stability are caused by good interfacial interactions between CN and rubber molecular chains.

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