نتایج جستجو برای: super absorbent polymer

تعداد نتایج: 144749  

Journal: :Buildings 2022

Carbonization coefficient research has great significance in concrete carbonization evaluation. Nano-silica (NS) can reduce the content of Ca(OH)2, which is generated during hydration concrete, resulting improved resistance and compressive strength concrete. This paper investigates effects with internal curing, such as Super Absorbent Polymer (SAP). The shows that SAP promote but form tiny pore...

Journal: :Cellulose 2022

An efficient heavy metal absorbent, amino-terminated hyperbranched polymer modified walnut shell (FWNS) was prepared. The adsorption behavior for Pb(II) ions from aqueous solution also discussed. FWNS prepared using an (ATHBP) as modifying agent and glycidyl methacrylate(GMA) the grafting bridge. characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) Scanning e...

Journal: :IOP conference series 2022

The use of radiation-induced grafting (RIG) polymerization techniques is an appealing way to create and develop polymer. method copolymerization preparation was evaluated in this paper based on the types their prospective applications. Based preparation, optimum yield monomer polymer backbone described. approach used summarise review go through polymer-related papers from science direct online ...

Background and purpose: Contamination of groundwater with colored and toxic wastewater causes many environmental problems and has adverse effects on human health. This study aimed at coating a nano polyaniline polymer layer on the surface of sawdust and preparing polyaniline sawdust composite (Pan/SD) via chemical polymerization of aniline monomer onto sawdust in aqueous solutions and removal o...

Sadegh Lamochi Tayeb Sakinejad,

BACKGROUND: Super absorbent polymers (SAP) by increasing the capacity of water storage and nutrition materials, reduction of wasting water and evaporation from the surface of soil improve crop production under water stress condition. Bio-fertilizers have the significant advantages to chemical fertilizers; for instance, they do not produce toxic and bacterial substances in the f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده کشاورزی 1392

به منظور بررسی اثر تنش خشکی بر برخی شاخص های فیزیولوژیک و مورفولوژیک دو رقم ارزن آزمایشی در شرایط مزرعه )به صورت طرح اسپلیت پلات در قالب فاکتوریل با سه تکرار( در مزرعه تحقیقاتی دانشگاه شهید باهنر کرمان انجام شد. صفات محتوای نسبی آب برگ، شاخص کلروفیل(spad)، رنگریزه های گیاهی) کلروفیل a ، کلروفیل b ، نسبت کلروفیل a/b) ارتفاع ساقه، قطر ساقه، تعداد برگ،نسبت برگ به ساقه، عملکرد ماده خشک و کارایی مصر...

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