کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5205265 1502927 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Poly(cetyl trimethylammonium 4-styrenesulfonate)-wrapped carbon nanotubes filled in polylactide nanocomposites: Fabrication and properties
ترجمه فارسی عنوان
نانولولههای کربنی پلی کربنیک (سیتیل تریدیتل آمونیوم 4-استریلنسولفونات) بسته بندی شده در نانوکامپوزیتهای پلی اتیلن: ساخت و خواص
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Poly(cetyl trimethylammonium 4-styrenesulfonate) (PSS-CTA) was synthesized by the ionic exchange reaction of poly(sodium 4-styrenesulfonate) (PSS-Na) with cetyl trimethylammonium bromide (CTAB). It was then used as a surface modifier for carbon nanotubes (CNTs) to improve dispersion in and interfacial adhesion with a polylactide (PLA) matrix to fabricate high performance PLA/CNT nanocomposites via a solution precipitation method. The morphology, electrical conductivity, crystallization and mechanical properties of the PLA nanocomposites were investigated in detail. The results indicate that CNTs wrapped (coated) with a suitable amount of PSS-CTA dispersed in the PLA matrix homogeneously. The electrical conductivity of PLA was enhanced by up to 10 orders of magnitude with the incorporation of 1.0 wt% PSS-CTA-modified CNTs (mCNTs). The crystallization rate of PLA was improved due to the nucleation effect of mCNTs towards the crystallization of PLA, but the crystallization mechanisms and crystal structure of PLA remained unchanged with the incorporation of mCNTs. Both the tensile strength and toughness of PLA were improved by the incorporation of mCNTs, and the fracture behaviour of PLA changed from brittle e to ductile during tensile testing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 63, October 2017, Pages 323-333
نویسندگان
, , , , ,