نتایج جستجو برای: polymer fibres

تعداد نتایج: 108675  

Journal: :Polymers & Polymer Composites 2021

In this study, HDPE-based flat-pressed WPCs were reinforced with glass fibre and carbon woven fabrics, which could be used where high strength stiffness are required. The effect of reinforcement on some physical, mechanical, thermal properties fire performance was investigated. According to the results, increase in fabric density resulted holding much water microvoids fabric, increased absorpti...

Journal: :Acta biomaterialia 2012
Denver C Surrao Stephen D Waldman Brian G Amsden

The aim of this study was to fabricate a fibrous scaffold that closely resembled the micro-structural architecture and mechanical properties of collagen fibres found in the anterior cruciate ligament (ACL). To achieve this aim, fibrous scaffolds were made by electrospinning L-lactide based polymers. L-Lactide was chosen primarily due to its demonstrated biocompatibility, biodegradability and hi...

Journal: :iranian journal of earth science 0
h. fajković department of geology, faculty of science, university of zagreb, horvatovac 95, 10000 zagreb, croatia

in 2007, research was carried out to determine the type and amount of asbestos fibers in a croatian factory with a long history of making asbestos-containing products.since the 1970s, asbestos fibres have been considered carcinogenic in humans i.e as a known cancer-causing agent. in the environment, asbestos fibres are inactive and naturally resist biodegradation. in time, fibres can only be gr...

2010
Karine Charlet Alexis Béakou

As flax fibres exhibit good mechanical properties and low cost, they are more and more considered, since the early 2000’s, as efficient reinforcement for polymer based composites in replacement of E-glass fibres in automotive or building areas. The properties of the elementary fibres are now relatively well-known (strength comprised between 600 and 2000 MPa, Young’s modulus around 50 GPa and fa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی نساجی 1386

تولید الیاف پلی آمید 6 با وزن مولکولی زیاد و ساخت غشاء پلی آمید 6، بطور متداول، از طریق شکل دادن محلول پلی آمید 6/اسید فرمیک بصورت لیف یا فیلم و غوطه ور کردن آن در حجم زیادی از غیرحلال انجام می گیرد. کنترل رفتار فازی سیستم های غیرحلال/حلال/پلیمر برای دستیابی به ساختارهای متنوع و ویژه اهمیت زیادی دارد. در این تحقیق رفتار فازی سیستم آب/اسید فرمیک/پلی آمید 6 در حضور نانوورقه های سیلیکا بررسی شده ا...

Journal: :Materials advances 2021

Porous polyvinyl butyral and poly(3,4-ethylenedioxythiophene)polystyrene sulfonate fibers (porous PPPS-f) non-porous PPPS-f solid fibres were fabricated via electrospinning. The microwave absorption characteristics investigated for single bi-layered structures.

2011
Alberto Milani Mosè Casalegno Chiara Castiglioni Guido Raos G. Raos

We describe the development of a coarse-grained (CG) force field for nylon-6 (polycaprolactam) and its application to the simulation of the structure and macromolecular dynamics within cylindrical fibres formed by this polymer, having diameters in the 14–28nm range. Our CG model is based on the MARTINI force field for the non-bonded interactions and on Boltzmanninverted gas-phase atomistic simu...

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