کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7890410 1509881 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multivariable dependency of thermal shrinkage in highly aligned polypropylene tapes for self-reinforced polymer composites
ترجمه فارسی عنوان
وابستگی چند متغیری از انقباض حرارتی در نوارهای پلی پروپیلن بسیار هموار شده برای کامپوزیت پلیمرهای تقویت شده خود
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Self-reinforced composites offer a unique combination of properties such as high specific strength, high impact resistance, and recyclability by incorporating highly aligned fibers within a random matrix of the same polymer. However, high temperatures will shrink the system to recover randomness in the aligned segments, compromising the composite thermal stability during processing as self-reinforced tapes are consolidated into the final composite through heating and pressure. Hence, the dynamic nonlinear multivariable (i.e., time, temperature, stress) shrinkage exhibited by self-reinforced polypropylene (SRPP) tapes was measured and modeled at the maximum shrinkage limit achieved in the proximity of the composite processing temperature [∼140 to160 °C]. At high stress (∼7.5 MPa) the thermal shrinkage of the SRPP tapes was reduced and a parallel creep mechanism was activated. The modeling, and prediction of the main factors governing the thermal shrinkage expand and diversify the dynamic design window for new SRPP composites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 90, November 2016, Pages 771-777
نویسندگان
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