نتایج جستجو برای: acrylonitrile butadiene rubber nbr

تعداد نتایج: 22152  

Journal: : 2021

For the manufacture of frost-resistant oil and petrol-resistant rubber products, one most widely used rubbers is nitrile-butadiene (NBR) with a low acrylonitrile content 17–20 %. However, technical properties its vulcanizates do not always meet all high performance requirements. Therefore, study possibility improving characteristics based on NBR an urgent task. This paper presents results study...

Journal: :Journal of Agricultural Sciences 2022

Purpose: Rice husk is burnt and discarded without effective use; however, it a reliable resource that can be used to extract silica from its ash (RHAS) incorporated in rubber blends as filler. The effect of Natural (NR) Acrylonitrile-butadiene (NBR) ratio NR/NBR filled with RHAS on physico-mechanical, swelling percentage specific oils (brake oil, hydraulic engine oil) toluene were studied since...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1393

در پیل سوختی پلیمری برای نگهداری هیدروژن و اکسیژن/هوا در ناحیه مربوط به خود، وجود واشر آب بندی در هر سل ضروری است. پایداری واشرهای آب بندی تاثیر بسیار زیادی بر روی طول عمر عملیاتی و عملکرد الکتروشیمیایی پیل سوختی می گذارد. هدف از این تحقیق یافتن ماده الاستومری مناسب جهت استفاده به عنوان آب بند در پیل سوختی پلیمری است. برای این کار چهار نوع ماده الاستومری که بهترین خواص را برای این کار داشتند،...

2017
Lokesh Saini Manoj Kumar Patra Raj Kumar Jani Goutam Kumar Gupta Ambesh Dixit Sampat Raj Vadera

The gel to carbonate precipitate route has been used for the synthesis of Ni1-xZnxFe2O4 (x = 0, 0.25, 0.5 and 0.75) bulk inverse spinel ferrite powder samples. The optimal zinc (50%) substitution has shown the maximum saturation magnetic moment and resulted into the maximum magnetic loss tangent (tanδm) > -1.2 over the entire 2-10 GHz frequency range with an optimum value ~-1.75 at 6 GHz. Ni0.5...

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: GPC: Gel Permeation Chromatography; FTIR: Fourier Transform Infra Red; XRD: X Ray Diffraction; HRTEM: High Resolution Transmission Electron Microscopy; TGA: Thermo Gravimetric Analysis; IEC 60520: International Electronic Commission Number 60520; BS 7655: British Standard Number 7655; PMMA: Poly Methyl Methacrylate; PC: Poly Carbonate...

2016
Chandra Mouli R. Madhuranthakam Alexander Penlidis Masoud Soroush

Chemical processes with complex reaction mechanisms generally lead to dynamic models which, while beneficial for predicting and capturing the detailed process behavior, are not readily amenable for direct use in online applications related to process operation, optimisation, control, and troubleshooting. Surrogate models can help overcome this problem. In this research article, the first part f...

Journal: :JOM 2022

Abstract This work shows an innovative application for electric arc furnace (EAF) slag: its use as a filler nitrile butadiene rubber (NBR). Composites with various EAF slag contents were tested. It was found that the polymer matrix significantly reduces leaching of (determined according to standard CEN-EN 12457-2) incorporated in NBR. The processability characteristics determined by rheometric ...

Journal: :Macromolecular Theory and Simulations 2023

Front Cover: The effects of 4010NA content on the damping and aging properties hydrogenated nitrile butadiene rubber (HNBR)/nitrile (NBR) matrix are studied via molecular simulation experiments. With an increase in content, there is a decrease free volume fraction (FFV), attributed to hydrogen bond network between HNBR/NBR matrix. This reported by Meng Song, Qi Qin, co-workers article number 22...

Journal: :Macromolecular Materials and Engineering 2021

A resorcinol resin/water dispersion and a rubber latex are added to 1% 2,2,6,6,-tetramethylpyperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibers (TEMPO-CNFs) dispersed in water, followed by oven drying at 40 °C for 20 h prepare dried TEMPO-CNF/resorcinol resin/latex (DTRL) mixture with weight ratio of 1/0.5/3. DTRL is then nitrile-butadiene (NBR) or carboxy group-containing NBR (X-NBR) sheet,...

Journal: :Journal of Leather Science and Engineering 2021

Abstract The recycling of leather solid waste not only involves resource utilization and environmental protection but also has important significance for the sustainable development industry. In this paper, was crushed into fibers, which were stabilized mixed with nitrile-butadiene rubber (NBR). mixture milled vulcanized a composite NBR-SLF (Stabilized Leather Fiber) is prepared sealing materia...

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