نتایج جستجو برای: polypropylene oxide

تعداد نتایج: 184306  

2015
Huixia Liu Hairong Jiang Dehui Guo Guochun Chen Zhang Yan Pin Li Hejun Zhu Jun Chen Xiao Wang

Polypropylene and PA66 are widely used in our daily life, but they cannot be welded by laser transmission welding (LTW) because of polar differences and poor compatibility. In this paper, grafting modification technology is used to improve the welding performance between polypropylene and PA66. Firstly, the strong reactive and polar maleic-anhydride (MAH) is grafted to polypropylene and infrare...

2010
Neng Guo Sara A. DiBenedetto Pratyush Tewari Michael T. Lanagan Mark A. Ratner Tobin J. Marks

A series of 0-3 metal oxide-polyolefin nanocomposites are synthesized via in situ olefin polymerization, using the following single-site metallocene catalysts:C2-symmetric dichloro[rac-ethylenebisindenyl]zirconium(IV),Me2Si( BuN)(η-C5Me4)TiCl2, and (η -C5Me5)TiCl3 immobilized onmethylaluminoxane (MAO)-treated BaTiO3, ZrO2, 3-mol%-yttria-stabilized zirconia, 8-mol%-yttria-stabilized zirconia, sp...

Journal: :PloS one 2016
Christopher J Hillary Sabiniano Roman Anthony J Bullock Nicola H Green Christopher R Chapple Sheila MacNeil

BACKGROUND Polypropylene mesh used as a mid-urethral sling is associated with severe clinical complications in a significant minority of patients. Current in vitro mechanical testing shows that polypropylene responds inadequately to mechanical distension and is also poor at supporting cell proliferation. AIMS AND OBJECTIVES Our objective therefore is to produce materials with more appropriate...

Journal: : 2021

The effect of nanofilles additives containing copper oxide nanoparticles stabilized by a polymer matrix high-pressure polyethylene obtained the mechanochemical method on features structure and properties metal-containing nanocomposites based isotactic polypropylene was studied using differential thermal (DTA) X-ray phase (XRD) analyzes. improvement strength, deformation rheological parameters, ...

Journal: :علوم و تکنولوژی پلیمر 0
احسان باغبان کوچک الهام فلاحی محمد حقیقت کیش

atechnical feasibility study has been conducted on production of nano- and micro-fibrils from nylon 6/polypropylene grafted with maleic anhydride/polypropylene blended films. fibrils are prepared in four consecutive steps.in the first step the polymers melt blended in an extruder with and without compatibilizers to produce chips; in the second step films are extruded from polymer blends chips, ...

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