کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
820665 906714 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cooling-/water-responsive shape memory hybrids
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Cooling-/water-responsive shape memory hybrids
چکیده انگلیسی

We report our experimental results of a hybrid which has both the cooling-responsive shape memory effect (SME) and water-responsive SME. The hybrid is designed based on the concept of shape memory hybrid (SMH), and is made of a plastic sponge (as elastic component) filled with Poloxamer 407 (P407) gel (as transition component). It is observed that the hybrid is able to recover its original shape upon immersing into 0 °C water in less than one minute (due to “melting” of P407 gel upon cooling), while upon immersing into 20 °C water, the recovery time is about one hour (due to dissolving of P407 gel in the water). Apparently, cooling for shape recovery is a complement to heating induced SME as in almost all traditional thermo-responsive shape memory materials. Mechanical properties of these samples are characterized by cyclic uniaxial compression test. Our experimental results reveal the compatibility and feasibility of P407 hybrid for biomedical applications inside human body. Potential biomedical applications are further discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 72, Issue 10, 8 June 2012, Pages 1178–1182
نویسندگان
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