Multiple-Shape Memory based on polymethylmetacrylate/ poly (lactic acid)/graphenenanoplatelets(PMMA/PLA/GNp)
- سال انتشار: 1395
- محل انتشار: دوازدهمین سمینار بین المللی علوم و تکنولوژی پلیمر
- کد COI اختصاصی: ISPST12_166
- زبان مقاله: انگلیسی
- تعداد مشاهده: 418
نویسندگان
Faculty of Chemistry, Tehran south Branch of Islamic Azad University, Tehran, Iran
Faculty of Chemistry, Tehran North Branch of Islamic Azad University, Tehran, Iran
Department of Polymer Processing, Iran Polymer and Petrochemical Institute
چکیده
Recently, research interests have been focused onmultiple shape memory based on polymer-carbon nanocomposites. Graphenenanoplateletis a new class of two-dimensional nanostructured layer of carbon with superior thermal and electrical conductivity, mechanical properties and high surface area which can be used in shape memory polymers. In this study nanocomposite samples based on PMMA/PLA/GNp were prepared via melt mixing. Shape memory programming was based on glass transition temperature as switching point and conducted using tensile instrument equipped with hot oven. The switching temperatures were selected using DMTA analysis based on determined glass transition temperature. The results showed that two polymeric phases were miscible due to appearing one glass transition temperature in the samples. There was no effect on miscibility by incorporation of GNp. The performance of shape memory was determined using shape recovery and fixity at two steps and the results revealed that the shape fixity and recovery was enhanced by addition of GNpکلیدواژه ها
Multiple shape memory polymers-nanocomposite,PLA/PMMA blendاطلاعات بیشتر در مورد COI
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