نتایج جستجو برای: h3bo3
تعداد نتایج: 184 فیلتر نتایج به سال:
Zinc borates can be used as multi-functional synergistic additives with flame retardant additives in polymers. Zinc borate is white, non-hygroscopic and powder type product. The most important properties are low solubility in water and high dehydration temperature. Zinc borates dehydrate above 290°C and anhydrous zinc borate has thermal resistance about 400°C. Zinc borates can be synthesized us...
The study was carried out to evaluate the effect of different mulch materials and foliar application micronutrients on growth yield sweet pepper under net house. experiment consisted two factors. Factor A: Three viz., M0-No (control), M2-Black polyethylene M2-Rice straw B: N0-control (No micronutrients), N1-Zn @0.6% as ZnSO4 N2-B H3BO3. laid in a Randomized Complete Block Design (RCBD) with thr...
Bu çalışmada, toz metalürjisi yöntemi kullanılarak ağırlıkça %50 boşluk oluşturucu olarak borik asit (H3BO3) ilavesiyle üretilen saf Zn ve alaşımı (ZA27) köpük malzemelerin, makro yapısal mikro karakterizasyonu yanı sıra basma mukavemetleri araştırılmıştır. Köpük malzemelerden köpükler, 300, 420 630 MPa'lık farklı basınçlarda, malzemeleri MPa basınçta preslenmiş 70 dk boyunca 350 ° C'de sinterl...
بنزایمیدازول حد واسط مهمی در پیشبرد مولکول های مورد توجه در پزشکی و داروسازی است. مشتقات استخلاف دار بنزایمیدازول کاربردهای درمانی مانند ضد آسم، ضد برافروختگی، ضد ویروس، ضد قارچ، ضد سرطان و ضد حساسیت پیدا کرده اند. توجه گسترده به ترکیباتی که دارای بنزایمیدازول در ساختارشان می باشند، مطالعات گسترده ای را برای سنتز این ترکیبات باعث شده است. دو روش عمومی برای سنتز بنزایمیدازول های استخلاف دار وجود...
Nanosilver of nanometer-sized silver (Ag+) particles (2-5 nm diam) are used in various applications as an anti-microbial. Boric acid (H3BO3) is water soluble (pH=7). Boric acid is ethylene synthese inhibitor and reduce ethylene production through reducing the ACC synthase and ACC oxidase delays senescence of flower. In this study of different concentrations of boric acid and nano-silver was eva...
In this study, the effect of Al2O3 addition as a diluent during mechanically activated self-propagating high temperature synthesis (MASHS) of Al2O3-ZrB2 composite was investigated. For this purpose, the thermite mixture of Al, ZrO2, H3BO3 and different amounts of Al2O3 (0, 3, 6, 9 wt.%) were used as the raw materials and mechanically activated for 5 h, then furnace sintering was performed at 65...
Magnesium borate(MB) istechnical ceramic for high heat-resisting, corrosion-resisting, super mechanical strength, superinsulation, light weight, high strength, and high coefficient of elasticity. Zinc borate (ZB) can be used as multi-functional synergistic additives with flame retardant additives in polymers. The most important properties are low solubility in water and high dehydration tempera...
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