|Table of Contents|

Crystallization Kinetics of LDPE/CA-MMT Nanocomposites(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2021年03期
Page:
31-37
Research Field:
·化学·
Publishing date:

Info

Title:
Crystallization Kinetics of LDPE/CA-MMT Nanocomposites
Author(s):
Song Wenfeng1; Wei Xiaofang1; Xu Ying1; Wang Lu1; Fan Kun2; Bai Yin2; Tian Maozhang1; Zhang Fan1; Zhang Min2; Jiang Hang1; Shao Guangqiang2; Huang Jia1; Yang Jiru1; Zheng Miaomiao3; Zhao Yue3; Zhang Jun3
(1.State Key Laboratory of Enhanced Oil Recovery,Research Institute of Petroleum Exploration and Development,CNPC,Beijing 100083,China)(2.Tarim Oilfield Company,PetroChina,Korla 841000,China)(3.Jiangsu Collaborative Innovation Center of Biomedical Functional Materials,National and Local Joint Engineering Research Center ofBiomedical Functional Materials,Jiangsu Engineering Research Center for Biomedical Function Materials,School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210023,China)
Keywords:
low density polyethylene; montmorillonite; chlorhexidine acetate; crystallization kinetics
PACS:
O631.1+3
DOI:
10.3969/j.issn.1001-4616.2021.03.006
Abstract:
Polymer/layered silicate(PLS)nanocomposites are a class of typical functionalized inorganic/organic nanocomposites. The properties of PLS nanocomposites can be influenced by the intercalation of layered silicate fillers,since the intercalation can cause changes in the crystallization properties of the polymer. Therefore,it is important to investigate the crystallization propertiesand kineticsof PLS nanocomposites. In this work,a series of PLS nanocomposites were prepared by melt blending low density polyethylene(LDPE)with montmorillonite(MMT),chlorhexidine acetate(CA)and CA-MMT on a Hark torque rheometer. The crystallization properties of these PLS nanocomposites and kinetics were investigated with differential scanning calorimetry(DSC). The addition of MMT led to the heterogeneous nucleation of LDPEcrystallization. In addition,the plasticization of CA reduced the crystallization rate constant K. The hindering effect of MMT on the movement of LDPE chains reduced the crystallization rate of LDPE.

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Last Update: 2021-09-15