نتایج جستجو برای: polyvinyl chloride pvc

تعداد نتایج: 94770  

2018
Li Hou Chunguang Fan Chenghu Liu Qiujin Qu Chunren Wang Yanping Shi

Systemic toxicity caused by repeated exposure to both polar and nonpolar leachables of di(2-ethylhexyl)-1,2-cyclohexane plasticized polyvinyl chloride (PVC) was evaluated with dual routes of parenteral administration method on rats in the study. Experimental group and control group were designed by researchers. Tail intravenous injection with 0.9% sodium chloride injection extracts and intraper...

Journal: :Journal of Inorganic and Organometallic Polymers and Materials 2021

The current work deals with the synthesis and characterization of strontium titanate (SrTiO3) nanoparticles reinforced polyvinyl chloride (PVC) polyvinylidene fluoride (PVDF) blend nanocomposite films prepared via a solution casting approach. structural, thermal, morphological characteristics PVC/PVDF/SrTiO3 were explored through Fourier transform infrared spectroscopy- FTIR, X-ray diffraction–...

Journal: :International journal of clinical and experimental medicine 2014
Wenqing Gao Tong Li Meili Yu Xiaomin Hu Dawei Duan Tingting Lin

Inflammatory reaction and thrombosis are the unsolved main problems of non-coated biomaterials applied in cardiac surgery. In the present study, a series of sustained composite coating was prepared and characterized, such as in the chemical modification of polyvinyl chloride (PVC) for applications in cardiac surgery and the assessment of the biological property of modified PVC. The composite co...

2011
Mengliang Tong Hongyan Chen Zhanhong Yang Runjuan Wen

A clean-route synthesis of Zn-Al-hydrotalcites (Zn-Al-LDHs) using zinc oxide and sodium aluminate solution has been developed. The as-obtained materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). The effects of metal ions at different molar ratios on the performance of hydrotalcites were discussed. The ...

2006
Anneli Tuomainen Harri Stark Markku Seuri Maija-Riitta Hirvonen Markku Linnainmaa Anne Sieppi Hannu Tukiainen

BACKGROUND Polyvinyl chloride (PVC) materials have been linked to asthma in several epidemiologic studies, but the possible causal factors remain unknown. PARTICIPANTS We challenged 10 subjects experimentally to degraded PVC products under controlled conditions. All of the subjects had previously experienced respiratory symptoms suspected to be caused by this kind of exposure in their work pl...

Journal: :Journal of Environmental Engineering and Landscape Management 2022

Simultaneous solar photocatalytic decolorization of Methlene Blue (MB) dye and degradation polymer nanocomposite film in water has been attempted the present work. The immobilized iron (Fe)-doped zinc oxide (ZnO) nanoparticles (NPs) polyvinyl chloride (PVC) matrix. This reduced cost separation from treated water. Doped NPs were prepared sonochemically using acetylacetonate (0.95 mmol) ferric (0...

Journal: :E3S web of conferences 2021

The production of polyvinyl chloride (PVC) is a very promising and dynamically growing segment the chemical industry. In article it’s considered new aspects technical equipment PVC enterprise from point view reducing environmental load on environment. There are identified ways to reduce energy intensity capital this process due use innovative technologies, in particular plasma-chemical pyrolysi...

2008
Jouni J.K. Jaakkola Trudy L. Knight

BACKGROUND Phthalates from polyvinyl chloride (PVC) plastics may have adverse effects on airways and immunologic systems, but the evidence has not been reviewed systematically. OBJECTIVE We reviewed the evidence for the role of exposure to phthalates from PVC products in the development of asthma and allergies. METHODS We conducted a Medline database search (1950 through May 2007) for relev...

Journal: :international journal of nano dimension 0
v. parvaneh school of mechanical engineering, shahrood university, shahrood, iran m. shariati school of mechanical engineering, ferdowsi university of mashhad, mashhad, iran a. nezakati department ofmathematics, shahrood university, shahrood, iran

in this paper, a new method is proposed for the production of mwcnts/pvc (multi-walled carbon nanotubes/ polyvinyl chloride) nanocomposites. in this method, a spray is used to produce layers of carbon nanotubes within a pvc matrix. various parameters influence the production of the nanocomposite and its mechanical properties. these parameters are studied separately and the effect of each of par...

Journal: :journal of hydraulic structures 2013
a. bergant q. hou a. keramat a. s. tijsseling

an experiment featuring waterhammer in viscoelastic pipes is presented in which the effects of pipe-wall viscoelasticity on waterhammer pressures are investigated. a large-scale pipeline apparatus made of polyvinyl chloride (pvc) at deltares, delft, the netherlands, has been used to carry out waterhammer experiments. tests have been conducted in a reservoir-pipeline-valve system consisting of a...

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