Academic Journal
All‐polyethylene compositions based on ultrahigh molecular weight polyethylene: Synthesis and properties
| العنوان: | All‐polyethylene compositions based on ultrahigh molecular weight polyethylene: Synthesis and properties |
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| المؤلفون: | Ushakova, Tatiana M., Starchak, Elena E., Gostev, Sergey S., Grinev, Vitaly G., Krasheninnikov, Vadim G., Gorenberg, Arcady Ya., Novokshonova, Lyudmila A. |
| المساهمون: | Russian Academy of Sciences, Russian Foundation for Basic Research |
| المصدر: | Journal of Applied Polymer Science ; volume 137, issue 38 ; ISSN 0021-8995 1097-4628 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2020 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Reactor polymer compositions (RPC) of ultrahigh molecular weight polyethylene (UHMWPE) with M w = 1,000 kg/mol and low molecular weight high density polyethylene (LMWPE) with M w = 160 kg/mol were synthesized in a two‐stage ethylene polymerization with a rac ‐Me 2 Si(Ind) 2 ZrCl 2 /methylaluminoxane catalyst. The conditions of the stages that ensure the formation of UHMWPE and LMWPE fractions with the desired molecular weight and properties were selected based on the study of one‐stage ethylene polymerization over this catalyst in a wide temperature range. The order of fraction synthesis in RPC preparation was changed. Two series of compositions UHMWPE/LMWPE and LMWPE/UHMWPE with UHMWPE content from 20 to 90 wt% were obtained. The SEM method was used to study the morphology of the nascent polymer particles. It was shown that RPC physical and mechanical properties depend not only on the UHMWPE content, but also on the morphology of the particles of reactor powders, which is determined by the order of polymer fraction synthesis. Materials of LMWPE/UHMWPE series have higher tensile properties compared to UHMWPE/LMWPE of the same composition. The LMWPE/UHMWPE compositions containing ≤50 wt% of UHMWPE flow even at a load of 10.5 kg. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/app.49121 |
| الاتاحة: | http://dx.doi.org/10.1002/app.49121 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fapp.49121 https://onlinelibrary.wiley.com/doi/pdf/10.1002/app.49121 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/app.49121 |
| Rights: | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| رقم الانضمام: | edsbas.15446F1E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/app.49121 |
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