文献类型：期刊文献

英文题名：The synergistic effect of zinc oxide and phenylphosphonic acid zinc salt on the crystallization behavior of poly (lactic acid)

作者：Chen, Peng Zhou, Hongfu Liu, Wei Zhang, Min Du, Zhongjie Wang, Xiangdong

第一作者：Chen, Peng

通信作者：Wang, XD[1]

机构：[1]Beijing Technol & Business Univ, Sch Mat & Mech Engn, Beijing 100048, Peoples R China;[2]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou Provinc, Peoples R China;[3]Beijing Univ Chem Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China

第一机构：Beijing Technol & Business Univ, Sch Mat & Mech Engn, Beijing 100048, Peoples R China

通信机构：corresponding author), 11 Fucheng Rd, Beijing 100048, Peoples R China.

年份：2015

卷号：122

起止页码：25-35

外文期刊名：POLYMER DEGRADATION AND STABILITY

收录：;EI(收录号：20154501491003);Scopus(收录号：2-s2.0-84945920228);WOS:【SCI-EXPANDED(收录号:WOS:000366776400004)】；

基金：This work was supported by Chinese Ministry of Science and Technology [Grant number 2011EG111244], the Development Project of Beijing Municipal Education Commission (KM20131 001002), the Joint Research Program of the Science and Technology Department of Guizhou Province (Grant No. QianKeHeLH [2014] 7372) as well as Research Program of Talented Scholars of Guizhou Institute of Technology (Grant No. XJG20141103).

语种：英文

外文关键词：Synergistic effect; Poly(lactic acid); Phenylphosphonic acid zinc salt; Zinc oxide; Composite nucleating agent; Crystallization kinetics

摘要：In order to improve the crystallinity and crystallization rate of poly (lactic acid) (PLA), a method for the preparation of a composite nucleating agent (CNA) consisting of zinc oxide and phenylphosphonic acid zinc salt was proposed. Zinc oxide, phenylphosphonic acid zinc salt and CNA were mixed into PLA through the melt blending method, respectively. The resultant PLA samples were characterized by differential scan calorimeter (DSC) and polarized optical microscope (POM). The DSC results showed that the crystallinity and crystallization temperature of the PLA samples with CNA were higher than those of the other PLA samples. The phenomena of crystallization nucleation and growth of various PIA samples were observed by means of POM. Isothermal and non-isothermal crystallization behavior of various PLA samples with different addition of CNA was studied, the corresponding result showed that the overall crystallinity, crystallization rate, nucleation density, and spherulite number increased obviously, as well as the crystallization time decreased, indicating the heterogeneous nucleating effect of CNA on the crystallization of PLA. For each of the component of CNA, the phenylphosphonic acid zinc salt could be used as an effective site of heterogeneous nucleation, resulting in the increasing nucleation density of PLA, and the zinc oxide could be acted as a good crystallization promoter for promoting the crystal growth of PLA. At the CNA content of 1 phr, CNA had a significant impact on crystallization behavior of PLA with a little negative influence on the molecular weight of PLA. (C) 2015 Elsevier Ltd. All rights reserved.