文献类型：期刊文献

英文题名：Visual observation and Numerical Studies of bubble formation of polypropylene chemical foaming system in the different injection foaming environment

作者：Deng, Rong Jiang, Tuanhui Liu, Bujin Yang, Jingkui Zeng, Xiangbu Li, Shengnan Gong, Wei Zhang, Chun He, Li

第一作者：Deng, Rong

通信作者：He, L[1]

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

第一机构：Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China

通信机构：corresponding author), Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China.

年份：2022

卷号：29

期号：9

外文期刊名：JOURNAL OF POLYMER RESEARCH

收录：;EI(收录号：20223212542418);Scopus(收录号：2-s2.0-85135391363);WOS:【SCI-EXPANDED(收录号:WOS:000836224500001)】；

基金：This work was supported by the Foundation of Guizhou Scientific Research Institute (QianKeFuQi [2018] 4010), the Natural Science Foundation Funding Projects of Guizhou Province (No. [2019]1176), Supported by Guiyang Science and Technology Projects (ZhuKeHeTong [2020]-18-9) and Supported by Baiyun Science and Technology Projects (BaiKeHeTong [2020]30).

语种：英文

外文关键词：Polypropylene; Foaming environment; Bubble formation process; Mathematical fitting

摘要：In this paper, polypropylene (PP) and chemical foaming agent (AC) were taken as the research objects, and the influence of different injection molding foaming environment on the bubble formation process was studied by using the visualization device. And the mathematical model formula was used to fit the curve of bubble number (N) with time (t) in the foaming process. Among them, the change of injection temperature and foaming agent content only changed the bubble formation rate and the final bubble number. With the increase of injection temperature, the foaming agent decomposed in advance in the barrel. The change of injection pressure had the most obvious effect on the nucleation process. Through the nonlinear fitting of N-t curves under different foaming environments, the correlation coefficient R-2 was always greater than 0.98, indicating that the process of foaming nucleation could be described intuitively through the mathematical model.