نتایج جستجو برای: pvoh
تعداد نتایج: 71 فیلتر نتایج به سال:
Background and Objectives: Kefiran (Kef) is a water-soluble polysaccharide that can form transparent film however, it is brittle. Therefore, in order to improve the mechanical properties of kefiran film, a mixture with other polymers can be offered. The expansion of mixed systems can propose kefiran and polyvinyl alcohol (PVOH) as a new composite film. Materials and Methods: Solutions of 20 gr...
An alternative oxygen sensor to conventional ZrO2 based automotive sensors (COS) was successfully manufactured. nanoparticles were used as base material and nanofibers fabricated via electrospinning using polyvinyl alcohol solution (ZrO2+PVOH) obtain active surface of the where engine exhaust gas interacts chemisorption reactions take place prior calcination process at 700 oC. Thanks operating ...
carboxymethyl cellulose (cmc)-polyvinyl alcohol (pvoh) blend film was produced through casting. cellulose nanowhisker (cnw) was produced by means of acid hydrolysis of cotton linter and cmc-pvoh-cellulose nanowhiskers through which fully degradable bionanocomposites were prepared. prepared nanowhisker suspension contained rod like particles averaging lengths of 240 nm and diameters of 13 nm. an...
Valorization of lignocellulosic waste residues in the development of potential biodegradable composites has been of recent research interest. Recent research has shown that wheat straw can be used as a reinforcement material for the synthesis of novel polyvinyl alcohol (PVOH)based composites. However, certain pretreatment methodology needs to be used for the selective removal of the lignin comp...
background and objectives: kefiran (kef) is a water-soluble polysaccharide that can form transparent film however, it is brittle. therefore, in order to improve the mechanical properties of kefiran film, a mixture with other polymers can be offered. the expansion of mixed systems can propose kefiran and polyvinyl alcohol (pvoh) as a new composite film. materials and methods: solutions of 20 gra...
در پژوهش حاضر فیلم مخلوط کربوکسی متیل سلولز (CMC)- پلی وینیل الکل (PVOH) با روش قالب گیری تولید شد. در مرحله بعد نانوویسکر سلولز (CNW) به وسیله هیدرولیز اسیدی لینتر پنبه تولید و به منظور تهیه بیونانوکامپوزیتهای کاملاً زیست تخریبپذیر CMC – PVOH - نانوویسکر سلولز مورد استفاده قرار گرفت. سوسپانسیون نانوویسکر سلولز تولید شده، حاوی ذرات میلهای شکل با طول میانگین nm 240 و قطر میانگین nm 13 بود. نت...
در این تحقیق بافت و خواص عایقی آمیزه های شامل evoh (به عنوان عایق نفوذ اکسیژن)، lldpe ldpe همراه با سازگار کننده lld-g-ma بررسی شده است ، تا مدلی با خواص عایقی قابل قبول برای جایگزینی فیلمهای پنج لایه (حاوی یک لایه evoh و دو لایه از آمیزه های ldpe و lldpe و مقادیر جزیی از کربن بلاک و مستربچ سفید می باشد) ارائه شود. بدین منظور آمیزه ها توسط یک اکسترودر دوپیچه تهیه شده و با یک پرس هیدرولیک بافت ن...
the starch based films have some disadvantages such as weak mechanical and poor water barrier properties that restrict their applications in food packaging. in the present research, the polyvinyl alcohol (povh), as a compatible polymer, and montmorillonite (mmt) nanoclay, as a nanofiller, were added to plasticized starch film (ps) to improve its properties and also to produce ps-mmt-pvoh nanoco...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید