文献类型：期刊文献

英文题名：Visualization observation of cells growth in low-density polyethylene foaming processes

作者：Wu, Shan He, Li Zhang, Chun Gong, Wei He, Yue Luo, Yuan

第一作者：Wu, Shan

通信作者：He, L[1];Zhang, C[2]|[14440f6a6d277849ce3bf]张纯;

机构：[1]Guizhou Univ, Coll Mat Sci & Met Engn, Guiyang 550025, Guizhou, Peoples R China;[2]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China;[3]Guizhou Inst Technol, Coll Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：Guizhou Univ, Coll Mat Sci & Met Engn, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Mat Sci & Met Engn, Guiyang 550025, Guizhou, Peoples R China;corresponding author), Guizhou Inst Technol, Coll Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2017

卷号：63

起止页码：367-374

外文期刊名：POLYMER TESTING

收录：;EI(收录号：20173604127135);Scopus(收录号：2-s2.0-85028719679);WOS:【SCI-EXPANDED(收录号:WOS:000413378700043)】；

基金：This work was financially supported by the Major Special Project of Guizhou Province [Grant no. 6023].

语种：英文

外文关键词：Cells growth; Growth driving force; Cells deformation

摘要：Low-density polyethylene (LDPE)/p, p-oxybis (benzenesulfonylhydrazide) (OBSH) system was carried out to investigate the cell growth during foaming process with a visualization apparatus at a constant temperature. The results showed that the cells growth of LDPE foams follows the Logistic function with a higher correlation coefficient of 0.96738. Here, a method was adopted to establish the relationships between cell growth and foaming process with first and second derivatives of cell mean diameter vs. time, which reflected the cells growth rate and driving force during cell growth, respectively. Moreover, we elucidated the interactions of cells growth at less-foamed, better-foamed and over-foamed stages were asymmetric during foaming process, which resulted from the greater cells deformation. This revealed the method in describing cells growth provided a visual comprehension of the mechanisms for foaming process. (C) 2017 Elsevier Ltd. All rights reserved.