Polyvinylpyrrolidone and polystyrene composites based on economical high quality biofillers derived from rice husk: Spectroscopic and hydrophilic investigations
محل انتشار: فصلنامه پلی اولفین ها، دوره: 10، شماره: 1
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 150
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شناسه ملی سند علمی:
JR_POJ-10-1_006
تاریخ نمایه سازی: 27 دی 1401
چکیده مقاله:
Polyvinylpyrrolidone (PVP) composites based on rice husk (RH), rice husk carbon (RHC, i.e., black rice husk ash (BRHA)) and rice husk ash (RHA, i.e., white rice husk ash (WRHA)) were prepared separately through solution casting method. Similar composites were made using polystyrene (PS) through the same protocol. The carbon and ash obtained from this type of rice husk were obtained via pyrolysis at ۳۰۰ and ۶۰۰ °C, respectively, for ۱ hour. The effects of these additives on the spectroscopic characteristics of polymers were verified by examining the infrared (FT-IR) and X-ray diffraction (XRD) spectra of the prepared composites. The resulting showed a remarkable difference between the spectra of parent polymers and the corresponding composites. Changes in peak width and ۲θ parameters (observed in XRD patterns) revealed that PVP possesses better interactions with RHC, while PS has better interactions with RHA. Due to the high hydrophilicity of PVP, some investigations were accomplished on the hydrophilic properties of PVP samples. Polystyrene did not reveal detectable water vapor absorption (WVA), thus this experiment was not carried out for PS samples. Eventually, it was disclosed that there are significant discrepancies between the hydrophilic properties of PVP and its composites. In the other word, the WVA decreased from ۲۹۰% for parent PVP to ۲۱۰% for PVP-RHC composite.
کلیدواژه ها:
polyvinylpyrrolidone ، Polystyrene ، Rice husk derivatives ، bio-composite ، Spectroscopic and hydrophilic characteristics
نویسندگان
Hamed NazarpourFard
Department of Polymer Engineering, Faculty of Engineering, Lorestan University, Khorramabad, Iran