文献类型： 外文期刊
作者： Zhang, Li 1 ; Liao, Lusheng 2 ; Chen, Jing 1 ; Ma, Lin 1 ; Zhang, Fuquan 2 ; Huang, Qianqian 1 ; Ju, Guoxian 1 ; Chen, Me 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, Guangdong Prov Key Lab Nat Rubber Proc, Agr Prod Proc Res Inst, Zhanjiang 524001, Guangdong, Peoples R China
关键词： natural rubber latex; PMAA; properties; Sm3+
期刊名称：POLYMER ENGINEERING AND SCIENCE （ 影响因子：2.428； 五年影响因子：2.276 ）
ISSN： 0032-3888
年卷期： 2021 年 61 卷 5 期
页码：
收录情况： SCI
摘要： Samarium carbonate [Sm-2(CO3)(3)] was taken as the source of Sm3+, and methyl acrylic acid (MAA) was employed as the precursor to prepare polymethacrylic acid (PMAA). The mixture of Sm-2(CO3)(3) and PMAA was marked as "SmP." The SmP prepared under different conditions was added to natural rubber (NR) latex to prepare NR/SmP films. The influence of the polymerization temperature of MAA and the amount of SmP on the mechanical properties and structure of NR/SmP films were analyzed. The results show that polymerization temperature has significant effect on the mechanical properties of NR/SmP film; lower temperature is benefit to improve modulus and rigidity, whereas higher temperature helps maintain good elasticity. Compared with neat NR, addition of 5-phr Sm-2(CO3)(3) results in a 30%-37% increase of tensile strength. Furthermore, the glass transition temperature (T-g) can also be increased by the addition of SmP; and the tan delta curves of all samples exhibit only one transition peak and indicate no phase separation between SmP and NR matrix. The influence of SmP on the structure and morphology of NR was explored by Fourier transform infrared, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy analysis; and the results show that SmP can be dispersed uniformly in the NR latex when loading of Sm-2(CO3)(3) is lower than 20 phr.
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