文献类型：期刊文献

英文题名：Phase Structure and Properties of Poly(ethylene terephthalate)/High-Density Polyethylene Based on Recycled Materials

作者：Lei, Yong[1];Wu, Qinglin[1];Clemons, Craig M.[2];Gu, Weihong[3]

机构：[1]Louisiana State Univ, Ctr Agr, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA;[2]US Forest Serv, USDA, Forest Prod Lab, Madison, WI 53705 USA;[3]E China Univ Sci & Technol, Polymer Alloy Lab, Dept Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2009

卷号：113

期号：3

起止页码：1710

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20092912193310);WOS:【SCI-EXPANDED(收录号:WOS:000266891100043)】；

语种：英文

外文关键词：polyethylene; recycling; blends; poly(ethylene terephthalate)

摘要：Blends based on recycled high density polyethylene (R-HDPE) and recycled poly(ethylene terephthalate) (R-PET) were made through reactive extrusion. The effects of maleated polyethylene (PE-g-MA), triblock copolymer of styrene and ethylene/butylene (SEBS), and 4,4'-methylenedi(phenyl isocyanate) (MDI) on blend properties were studied. The 2% PE-g-MA improved the compatibility of R-HDPE and R-PET in all blends toughened by SEBS. For the R-HDPE/R-PET (70/30 w/w) blend toughened by SEBS, the dispersed PET domain size was significantly reduced with use of 2% PE-g-MA, and the impact strength of the resultant blend doubled. For blends with R-PET matrix, all strengths were improved by adding MDI through extending the PET molecular chains. The crystalline behaviors of R-HDPE and R-PET in one-phase rich systems influenced each other. The addition of PE-g-MA and SEBS consistently reduced the crystalline level (X,) of either the R-PET or the R-HDPE phase and lowered the crystallization peak temperature (T-c) of R-PET. Further addition of MDI did not influence R-HDPE crystallization behavior but lowered the X, of R-PET in R-PET rich blends. The thermal stability of R-HDPE/R-PET 70/30 and 50/50 (w/w) blends were improved by chain-extension when 0.5% MDI was added. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 1710-1719, 2009