این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Polyolefins Journal، جلد ۱۱، شماره ۱، صفحات ۲۱-۲۸
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Ultra-high molecular weight polypropylene (UHMWPP): Synthesis and fiber processing
چکیده انگلیسی مقاله Ultra-high molecular weight polyolefin (UHMWPO) has enormous potential applications due to their excellent mechanical properties such as tensile strength, flexural modulus, toughness and outstanding chemical resistance. But the processing of polyolefin, in particular, UHMWPO fibers cannot be processed by conventional methods due to its very high melt viscosity. In this work, we synthesized isotactic ultra-high molecular weight polypropylene (UHMWPP) resin and studied the processability of UHMWPP fibers using gel spinning and investigated physicomechanical properties. UHMWPP gel was made at various concentrations in decalin solvent at 150°C to produce consistent spinning dope solutions. The 7 wt.% concentration of UHMWPP was deemed best for fiber creation, compared to 3 wt.% and 5 wt.%. A rheological time sweep was done to ensure the gel's stability at 170°C before the spinning process. The UHMWPP's gelation and fiber formation were studied by tweaking the gel concentration and adjusting the processing temperature. The resulting UHMWPP monofilament had a measure of 220-250 denier. The hot stretched fibers were analyzed with the scanning electron microscope (SEM) to understand the surface morphology of the fibers. The crystal morphology of UHMWPP fibers was measured with wide-angle x-ray scattering (WAXS) and DSC. The X-ray measurement of hot stretched UHMWPP fibers showed crystalline peaks compared to those without stretched fibers.
کلیدواژه‌های انگلیسی مقاله polyolefin, UHMWPP fibres, gel-spinning process, fiber stretching
نویسندگان مقاله Parthiv M Trivedi |
Polymer Synthesis & Catalysis Division, Reliance Research & Development Centre, RCP, Reliance Industries Limited, Ghansoli-400701, Navi Mumbai, Maharashtra, India

Sandip Patil |
E-Spin Nanotech Pvt. Ltd., IIT Kanpur, Uttar Pradesh, India

Virendra K. Gupta |
Polymer Synthesis & Catalysis Division, Reliance Research & Development Centre, RCP, Reliance Industries Limited, Ghansoli-400701, Navi Mumbai, Maharashtra, India

نشانی اینترنتی http://poj.ippi.ac.ir/article_2000_a6e0668967d544897a964333758cfaec.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات