کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7791079 | 1500645 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Homogeneous isolation of nanocelluloses by controlling the shearing force and pressure in microenvironment
ترجمه فارسی عنوان
جداسازی همگن نانوسلولز با کنترل نیروی برشی و فشار در محیط میکروکنترلر
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کلمات کلیدی
Dynamic high pressure microfluidizationLithium Chloride (PubChem CID: 433294)Sulfuric acid (PubChem CID: 1118) - اسید سولفوریک (PubChem CID: 1118)Nitric acid (PubChem CID: 944) - اسید نیتریک (PubChem CID: 944)Methanol (PubChem CID: 887) - متانول (PubChem CID: 887)Microenvironment - میکرو محیطNanocellulose - نانوسلولوزHigh pressure homogenization - همگن سازی فشار بالاSodium hydroxide (PubChem CID: 14798) - هیدروکسید سدیم (PubChem CID: 14798)Potassium bromide (PubChem CID: 253877) - پتاسیم برومید (PubChem CID: 253877)
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Nanocelluloses were prepared from sugarcane bagasse celluloses by dynamic high pressure microfluidization (DHPM), aiming at achieving a homogeneous isolation through the controlling of shearing force and pressure within a microenvironment. In the DHPM process, the homogeneous cellulose solution passed through chambers at a higher pressure in fewer cycles, compared with the high pressure homogenization (HPH) process. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) demonstrated that entangled network structures of celluloses were well dispersed in the microenvironment, which provided proper shearing forces and pressure to fracture the hydrogen bonds. Gel permeation chromatography (GPC), CP/MAS 13C NMR and Fourier transform infrared spectroscopy (FT-IR) measurements suggested that intra-molecular hydrogen bonds were maintained. These nanocelluloses of smaller particle size, good dispersion and lower thermal stability will have great potential to be applied in electronics devices, electrochemistry, medicine, and package and printing industry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 113, 26 November 2014, Pages 388-393
Journal: Carbohydrate Polymers - Volume 113, 26 November 2014, Pages 388-393
نویسندگان
Jihua Li, Yihong Wang, Xiaoyi Wei, Fei Wang, Donghui Han, Qinghuang Wang, Lingxue Kong,