Microcellular Structure of PP/Waste Rubber Powder Blends with Supercritical CO2 by Foam Extrusion Process

被引：23

作者：

Xin, Zhen Xiang ^{[1
,2
]}

Zhang, Zhen Xiu ^{[1
,2
]}

Pal, Kaushik ^{[1
]}

Kim, Kwang-Jea ^{[2
,3
]}

Kang, Dong Jin ^{[1
]}

Kim, Jin Kuk ^{[1
]}

Bang, Dae-Suk ^{[4
]}

机构：

[1] Gyeongsang Natl Univ, Sch Nano & Adv Mat Engn, Gyeongnam 660701, Jinju, South Korea

[2] Qingdao Univ Sci & Technol, Minist Educ, Key Lab Rubber Plast, Qingdao 266042, Peoples R China

[3] Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA

[4] Kumoh Natl Inst Technol, Dept Polymer Sci & Engn, Gyungbuk 730701, South Korea

来源：

JOURNAL OF CELLULAR PLASTICS | 2009年 / 45卷 / 06期

关键词：

polypropylene; waste ground rubber tire powder; foam; extrusion; supercritical carbon dioxide; central composite design; HIGH-DENSITY POLYETHYLENE; THERMOPLASTIC ELASTOMERS; MECHANICAL-PROPERTIES; CELLULAR MORPHOLOGY; PARAMETERS; CHALLENGE; EXTRUDER;

D O I：

10.1177/0021955X09342937

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new approach towards the recycling of waste ground rubber tire (WGRT) powder was demonstrated in this study by introducing the polypropylene/ waste ground rubber tire (PP/WGRT) foaming method by using CO2 as the foaming agent in an extrusion foaming process. The regression models were constructed to study the relationships between the foam structure (i.e., void fraction, average cell size, and cell density) of foamed PP/WGRT blends, the processing parameters (extruder's die temperature and CO2 concentration), and WGRT content by applying a three-factor central composite design (CCD) statistical approach. The response surface plots generated using the regression models allow the rapid selection of the proper process parameters to obtain microcellular PP/WGRT blends with the desired density and morphology.

引用

页码：499 / 514

页数：16

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