نتایج جستجو برای: superabsorbent polymer

تعداد نتایج: 93400  

Journal: :Journal of Pediatric Surgery Case Reports 2019

Journal: :Horticulturae 2022

Water management is rapidly becoming one of the most pressing issues facing all countries in semi-arid and arid parts world. Global water consumption predicted to increase by 50% 2030, resulting an acute shortage. Presently, agricultural sector consumes more than 70% freshwater regions world, putting pressure on scarcity. Hydrogels are superabsorbent polymers that can hold plant nutrients when ...

Journal: :Land 2023

Post-disturbance rangeland restoration efforts are often thwarted due to soil moisture deficits. Superabsorbent polymers (SAPs) absorb hundreds of times their weight in water, increasing when the SAP is mixed with soil. The objective this study was evaluate banded SAPs under surface increase plant available water and thus seedling establishment for perennial species during efforts. Five glassho...

Journal: :Journal of Polymers and The Environment 2022

In arid areas, the rapid evaporation of water leads to severe shortage for plant growth. Superabsorbent polymers have prospect preventing because its excellent absorbency. However, insufficient in salt resistance, retention, and swelling rate limit application. Herein, we fabricated Hydroxyethyl cellulose-g-(Acrylic acid-co-2-Acrylamido-2-methyl-1-propane sulfonic acid)/laterite (HEC-g-P (AA-co...

Journal: : 2022

The effect of Superabsorbent polymer (SAP) admixture in patch repair materials on the adhesion to base concrete and protection performance reinforcing bars was investigated. In experiment, one side RC joint specimens were exposed water. Water leakage from interface between material reduced SAP specimen compared conventional Polymer modified mortar specimen. addition, half-cell potential polariz...

Journal: :تولید گیاهان زراعی 0
زهرا عربی دانشکده کشاورزی و منابع طبیعی- دانشگاه آزاد اسلامی گرگان کامی کابوسی هیات علمی دانشکده کشاورزی و منابعطبیعی دانشگاه آزاد اسلامی واحد گرگان نصیبه رضوان طلب دانشجوی دکتری گروه زراعت دانشکده تولید گیاهی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

abstractbackground and objectives:anise (pimpinella anisum l.) is an annual medicinal plant which belonged to the apiaaceace family. grain is the most important organ to produce essential oil of anise. in order to produce medicinal plant it is necessary to determine the environmental factors under which they give higher yields and better quality (23). in medicinal plants, balanced fertilization...

Journal: :Pediatrics 2012
Irving J Zamora Lan T Vu Emily L Larimer Oluyinka O Olutoye

Foreign body ingestion is a potentially serious clinical problem in children. We report a case of an 8-month-old infant who developed complete bowel obstruction requiring laparotomy due to ingestion of a superabsorbent polymer ball with advertised growth up to 400 times its original size. Most ingested foreign bodies that pass through the pylorus will make it safely through the gastrointestinal...

فرحبخش, حسن, کشاورز, لیلا , گلکار, پوراندخت ,

Drought stress has an important role in yield reduction of crops. To investigate the effects of applying zeolite hydrogel (as a superabsorbent) in reduction of adverse effects of drought stress on chlorophyll content, nitrogen, growth indices and their relationships with quantitative and qualitative yield of pearl millet (cv. Nitrifeed), a split plot experiment (in space and time), based on ran...

2017
Bingjie Li Jie Shen Lijuan Wang

Tel.: +86-451-8219-1693 An antimicrobial superabsorbent was prepared by grafting polyacrylic acid on tara gum and adding chitosan quaternary ammonium salt (2-NHydroxypropyl-3-trimethylammonium chloride chitosan, HTCC). The effect of the amount of HTCC on swelling ratio of the product was investigated. The product was characterized by Fourier transform infrared (FTIR) spectroscopy, scanning elec...

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