نتایج جستجو برای: polymer composite

تعداد نتایج: 207786  

2006
M. Drabik J. Hanus D. Slavinska

History and theory of plasma polymerization is reviewed below. The deposition process of metal/plasma polymer composite films and their properties are shortly discussed. The experimental part of the paper describes the preparation procedure and the properties of composite TiOx/hydrocarbon plasma polymer films. The composite films have been prepared by a simultaneous sputtering in argon from two...

2000
Xuecang Geng T. Ritter K. K. Shung

In this paper, we demonstrated that 1-3 PZT/polymer composites, fabricated using PZT-4 ceramic and a polymer possessing a high glass transition temperature and low loss, can be used as high power ultrasonic transducer materials for high intensity focused ultrasound (HIFU) applications. The mechanical quality factor of the 1-3 composite with 64% ceramic volume fraction is over 200. The dielectri...

2011
Hiroshi Yabu Ayako Endo Kazutaka Koike Kiwamu Motoyoshi Takeshi Higuchi Masatsugu Shimomura

The preparation of size-controlled CdS nanoparticles in block copolymer micelles and formation of composite particles of CdS nanoparticles and polymers are described in this paper. Uniformly sized CdS nanoparticles with different emission wavelengths were successfully synthesized. In addition, composite Janus particles, unidirectionally stacked lamellae particles and onion particles were formed...

2006
H. Tan L. Y. Jiang Y. Huang B. Liu K. C. Hwang

The nonlinear cohesive law derived from the weak van der Waals force for carbon nanotube/polymer interfaces is incorporated in present study of CNT-reinforced composites. Carbon nanotubes can indeed improve the mechanical behavior of composite at the small strain, but such improvement disappears at relatively large strain because the completely debonded nanotubes behave like voids in the matrix...

2015
Victoriya Payentko Tetyana Kulyk Volodymyr Kuts

Using semiempirical PM3 method, a comparative quantum chemical estimation has been carried out of the energy of articaine adsorption on the surfaces of the following composite materials: silica-anaesthetic, polymer-anaesthetic, and silica-polymer-anaesthetic. It has been found that adsorption on silica surface takes place due to electrostatic and nonspecific interactions. The data of quantum ch...

2017
Yawar Abbas Johan Bomer Marjolein Brusse-Keizer Kris Movig Paul van der Valk Marcel Pieterse Loes Segerink Wouter Olthuis Albert van den Berg

A cotinine sensor based on the dc resistance of a polymer composite films is presented. The composite film comprises a cotinine selective molecularly imprinted polymer and carbon nanotube particles. This polymer film is deposited over a gold interdigitated electrode array to measure its electrical resistance. The electrical resistance of the imprinted polymer changes upon its selective binding ...

2010
Sheng Liu Yang Liu Hulya Cebeci Roberto Guzman de Villoria Jun-Hong Lin Brian L. Wardle Qiming Zhang

Several generations of ionic polymer metal composite (IPMC) actuators have been developed since 1992. It has been discovered that the composite electrodes which are composed of electronic and ionic conductors, have great impact on performance of ionic polymer actuators by affecting strain level, efficiency and speed. One of important factors in composite electrodes is the shape and morphology o...

Journal: :Journal of nanoscience and nanotechnology 2012
T Nguyen B Pellegrin C Bernard S Rabb P Stuztman J M Gorham X Gu L L Yu J W Chin

Polymer nanocomposites are increasingly used in applications that are subjected to harsh environments. Owing to polymer's susceptibility to photodegradation, nanofillers in a polymer nanocomposite may be released into the environments during the composite's life cycle. Such release potentially poses an environmental health and safety problem and may hinder commercialization of these advanced ma...

2006
Min Wang

Biomaterial and scaffold development underpins the advancement of tissue engineering. Traditional scaffolds based on biodegradable polymers such as poly(lactic acid) and poly(lactic acidco-glycolic acid) are weak and non-osteoconductive. For bone tissue engineering, polymer-based composite scaffolds containing bioceramics such as hydroxyapatite can be produced and used. The bioceramics can be e...

Journal: :Nanoscale 2013
Maolin Li Guofang Chen

The early reported pseudo-first-order reaction kinetics of the polymer-supported metallic nanocatalysts for the model reaction of p-nitrophenol (p-NP)/NaBH4 were probably oversimplified. Here a detailed study of p-NP reduction by NaBH4 in the presence of the raspberry-like poly(allylamine hydrochloride)-modified polymer poly(glycidyl methacrylate) composite sub-microspheres with tunable gold na...

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