منابع مشابه
investigation of thermal comfort properties of woven sport fabric using blend of estabragh fibers
امروزه لباس در نظر ورزشکاران و کسانی که برای اوقات فراغت خود و یا برای رسیدن به اندامی متعادل، ورزش می کنند؛ بسیار با اهمیت است. احساس مطلوب از لباس در زمره خصوصیات راحتی پوشش می باشد. خصوصیات انتقال رطوبت لباس، در ارزیابی راحتی حسی و حرارتی منسوجات تولید شده از آن ها بسیار مهم است. هدف از این تحقیق، معرفی پارچه جدید است که متشکل از الیاف استبرق با خواص منحصر به فرد می باشد. استبرق لیف طبیعی تو...
Thermal Properties and Thermal Degradation of Cellulose Tri-Stearate (CTs)
Cellulose tri-stearate (CTs) was synthesized employing trifluoroacetic anhydride (TFAA), stearic acid (SA), with microcrystal cellulose (MCC) and characterized with FT-IR and 1 H-NMR. The degree of substitution of CTs was determined by the traditional saponification method and 1 H-NMR. The thermal properties of CTs were investigated by the thermogravimetric analysis (TGA) under Ar flow in dynam...
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In this work, the relationship between cellulose crystallinity, the influence of extractive content on lignocellulosic fiber degradation, the correlation between chemical composition and the physical properties of ten types of natural fibers were investigated by FTIR spectroscopy, X-ray diffraction and thermogravimetry techniques. The results showed that higher extractive contents associated wi...
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This paper describes the results obtained on the preparation of films composed of linter cellulose and the corresponding acetates. The acetylation was carried out in the LiCl/DMAc solvent system. Films were prepared from a LiCl/DMAc solution of cellulose acetates (degree of substitution, DS 0.8-2.9) mixed with linter cellulose (5, 10 and 15 wt %). Detailed characterization of the films revealed...
متن کاملThermal and Dynamic Mechanical Properties of Hydroxypropyl Cellulose Films
DifI'..tial scanning calorimetry (~ and dynamic ~-,!jCaJ thermal analysis (DMTA) were used to characterize the morphology of eolv81t cast hydroXYPl'Opyl ceUuloee (Hpc) films. DSC r-.lta windicative of a aemicryltaUine mat«ial with a melt at 220°C and a ,tran8itioo at 19°C (T1). althoucb an 8dditiCXlal _t wu MIumted by a baseline inftectioo at about ~C (Tt). Cc pcx1din, relaxatiMS wfound by DMTA...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1958
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.61.605