[1]宋文枫,魏小芳,许 颖,等.LDPE/CA-MMT纳米复合材料结晶动力学研究[J].南京师大学报(自然科学版),2021,44(03):31-37.[doi:10.3969/j.issn.1001-4616.2021.03.006]
　Song Wenfeng,Wei Xiaofang,Xu Ying,et al.Crystallization Kinetics of LDPE/CA-MMT Nanocomposites[J].Journal of Nanjing Normal University(Natural Science Edition),2021,44(03):31-37.[doi:10.3969/j.issn.1001-4616.2021.03.006]
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LDPE/CA-MMT纳米复合材料结晶动力学研究()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第44卷
期数:
2021年03期
页码:
31-37
栏目:
·化学·
出版日期:
2021-09-15

文章信息/Info

Title:
Crystallization Kinetics of LDPE/CA-MMT Nanocomposites
文章编号:
1001-4616(2021)03-0031-07
作者:
宋文枫1; 魏小芳1; 许 颖1; 王 璐1; 范 坤2; 白 银2; 田茂章1; 张 帆1; 张 敏2; 江 航1; 邵光强2; 黄 佳1; 杨济如1; 郑苗苗3; 赵 越3; 章 峻3
(1.中国石油勘探开发研究院强化采油国家重点实验室,北京 100083)(2.中国石油塔里木油田公司,新疆 库尔勒 841000)(3.江苏省生物医学功能材料协同创新中心,生物医学功能材料国家和地方联合工程研究中心,江苏省生物医学功能材料工程研究中心,南京师范大学化学与材料科学学院,江苏 南京 210023)
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)
关键词:
低密聚乙烯; 醋酸洗必泰; 蒙脱土; 结晶动力学
Keywords:
low density polyethylene; montmorillonite; chlorhexidine acetate; crystallization kinetics
分类号:
O631.1+3
DOI:
10.3969/j.issn.1001-4616.2021.03.006
文献标志码:
A
摘要:
聚合物/层状硅酸盐纳米复合材料是功能化无机/有机纳米复合材料的典型代表. 层状硅酸盐填料的加入会导致聚合物结晶性能的明显变化,进而对聚合物复合材料的使用性能产生显著影响. 因此,对聚合物/层状硅酸盐纳米复合材料结晶性能和结晶动力学的研究具有极大的实际应用价值. 本文以哈克转矩流变仪制备了具有长效抗菌功能的低密聚乙烯/醋酸洗必泰-蒙脱土(LDPE/CA-MMT)纳米复合材料,通过差示扫描量热计(DSC)研究其结晶性能和结晶动力学,并与纯LDPE,LDPE/MMT,LDPE/CA样品进行比较. 结果表明,MMT的加入可诱导LDPE结晶的异相成核,CA的增塑作用则会导致结晶速率常数K值的下降,而MMT对LDPE分子链运动的阻隔作用则会导致LDPE结晶生长速率的降低.
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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备注/Memo

备注/Memo:
收稿日期:2020-02-21.
基金项目:江苏省重点研发项目(BE2019391).
通讯作者:宋文枫,博士,高级工程师,研究方向:油田化学. E-mail:songwf@petrochina.com.cn
更新日期/Last Update: 2021-09-15