کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5211536 | 1382954 | 2008 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grafting of 3-(trimethoxysilyl)propyl methacrylate onto polypropylene and use as a coupling agent in viscose fiber/polypropylene composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, 3-(trimethoxysilyl)propyl methacrylate (MPTMS) was grafted onto polypropylene (PP) with use of dicumyl peroxide (DCP) as initiator in a twin screw extruder. Two batches of the grafted PP (PPgSIL) were prepared corresponding to two different grafting levels (4 and 8Â wt.%). The presence of MPTMS in the PPgSIL samples was confirmed by FTIR, 1H NMR, and elemental analysis. DSC and GPC results showed that the melting point(s) and molar mass of the PP were reduced due to the grafting. The two PPgSIL batches were used as coupling agents in viscose fiber/PP composites, each at three different levels (5, 2, and 1Â wt.% of the weight of the composite). PPgSIL had a significant effect on the mechanical properties of the composites. The composites where PPgSIL was applied, the tensile strength increased by 59% relative to the composites without PPgSIL (64.6Â MPa vs. 40.7Â MPa). For comparison, the viscose fibers were treated with MPTMS in 1Â wt.% MPTMS/water solution; however, the improvement in mechanical properties of the viscose fiber/PP composites was considerably less than that achieved with the PPgSIL coupling agent (46.6Â MPa vs. 64.6Â MPa).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 68, Issue 3, March 2008, Pages 797-808
Journal: Reactive and Functional Polymers - Volume 68, Issue 3, March 2008, Pages 797-808
نویسندگان
T. Paunikallio, M. Suvanto, T.T. Pakkanen,