کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
821487 906761 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of woven fabric reinforced all-polypropylene composites with beta nucleated homo- and copolymer matrices
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Development of woven fabric reinforced all-polypropylene composites with beta nucleated homo- and copolymer matrices
چکیده انگلیسی

In the present work self-reinforced polypropylene composites (SRPPC) were developed and investigated. As reinforcement a fabric, woven from highly stretched split PP yarns, whereas as matrix materials α and β crystal forms of isotactic PP homopolymer and random copolymer (with ethylene) were selected and used. The composite sheets were produced by film-stacking method and compression moulded at different processing temperatures keeping the holding time and pressure constant. The quality of the composite sheets was assessed by optical microscopy, density and peel-strength measurements. The SRPPC specimens were subjected to static tensile and flexural, and dynamic falling weight impact tests and the related results were analyzed as a function of processing temperature and polymorphic composition. Based on the results the optimum processing temperature was determined and found by 20–25 °C above the related matrix melting temperature. It was established that the β-modified PP homopolymer based one-component SRPPCs possessed similar attractive mechanical properties as the intensively studied α-random PP copolymer based two-component ones.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 69, Issue 13, October 2009, Pages 2185–2192
نویسندگان
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