A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming
Yang, CG; Wang, MH; Xing, Z; Zhao, Q; Wang, ML; Wu, GZ
2018
发表期刊RSC ADVANCES
ISSN2046-2069
卷号8期号:36页码:20061-20067
文章类型期刊论文
摘要Because polypropylene (PP) foam normally exhibits nonuniform cell size and cracked cellular structure, a narrow cell-size distribution and a well-defined morphology are always the focus of PP foaming technology. In this work, hollow molecular-sieve (MS) particles were applied as a potential nucleating agent in supercritical carbon dioxide (scCO(2)) foaming of PP. It was observed that the addition of MS particles largely narrowed the cell-size distribution. The resultant PP/MS foams exhibited significant concurrent enhancement in their cell density and mechanical properties: the cell density increased remarkably, by approximately 10 times, and the tensile strength increased from 6.1MPa to 12.6 MPa. The hollow-structure MS particles resulted in a higher heterogeneous nucleation efficiency in the PP foaming process. We believe that the trapping of CO2 in the hollow holes of MS particles largely increased the solubility CO2 in PP and a number of gas cavities were formed. The existence of gas cavities reduced the energy barrier of heterogeneous nucleation, favoring the formation of a well-defined cellular structure. Additionally, the regular-hexagon shape of the cells might endow the PP foam with better mechanical properties compared with a circular cell shape.
关键词Carbon-dioxide Nanocomposite Foams Isotactic Polypropylene Size Distribution Impact Properties Cell Morphology Extrusion Radiation Crystallization Composites
DOI10.1039/c8ra03071e
收录类别SCI
语种英语
WOS记录号WOS:000434390100020
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28908
专题中科院上海应用物理研究所2011-2018年
作者单位1.Yang, CG
2.Wang, MH
3.Xing, Z
4.Zhao, Q
5.Wang, ML
6.Wu, GZ
推荐引用方式
GB/T 7714
Yang, CG,Wang, MH,Xing, Z,et al. A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming[J]. RSC ADVANCES,2018,8(36):20061-20067.
APA Yang, CG,Wang, MH,Xing, Z,Zhao, Q,Wang, ML,&Wu, GZ.(2018).A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming.RSC ADVANCES,8(36),20061-20067.
MLA Yang, CG,et al."A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming".RSC ADVANCES 8.36(2018):20061-20067.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A new promising nucl(1507KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Yang, CG]的文章
[Wang, MH]的文章
[Xing, Z]的文章
百度学术
百度学术中相似的文章
[Yang, CG]的文章
[Wang, MH]的文章
[Xing, Z]的文章
必应学术
必应学术中相似的文章
[Yang, CG]的文章
[Wang, MH]的文章
[Xing, Z]的文章
相关权益政策
暂无数据
收藏/分享
文件名: A new promising nucleating agent for polymer foaming effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。