کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7781731 1500561 2018 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-strength and morphology-controlled aerogel based on carboxymethyl cellulose and graphene oxide
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
High-strength and morphology-controlled aerogel based on carboxymethyl cellulose and graphene oxide
چکیده انگلیسی
Composite aerogels with excellent mechanical properties were prepared by using carboxymethyl cellulose (CMC) as raw materials, 2D graphene oxide (GO) nanosheets as reinforcement, boric acid (BA) as cross-linker. By controlling the heat transfer rate, composite aerogels with isotropy and anisotropy structure were prepared, the mechanical and heat insulation properties were studied. The isotropy composite aerogel had compression strength of 110 kPa at 60% compression, which was 5 times of the axial and 14 times of the radial of anisotropy structure composite aerogels, and thermal conductivity was also lower than those of two directions of anisotropy composite aerogel. Besides, the mechanical properties of isotropy composite aerogels increased with the increase of GO content. When GO content was up to 5 wt%, the compressive strength and Young's modulus of composite aerogels reached 349 kPa and 1029 kPa, which were 1.6 and 4.5 times that of CMC aerogels, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 197, 1 October 2018, Pages 277-283
نویسندگان
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