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Preparation and Performance of Continuous Glass Fiber Reinforced preparation and Performance of Continuous. Glass Fiber Reinforced polypropylene. Composite Honeycomb Sandwich panels. Ke CHENa, Ping XUEb, Xiang ZHOUc and Mingyin JIAd,*. Institute of Plastic Machinery and Engineering, Beijing University of Chemical Technology, Beijing. 100029, China aningxiaomeng0903hotmail1, bxuepingmail.buct.edu.cn, cbuctzx1209126, djiamymail.buct.edu.cn. Abstract. As the light-weight and high-strength thermoplastic 

Preparation and water sorption properties of cellulose A series of cellulose-polypropylene glycol block copolymers have been prepared by techniques described previously. The chain extension reactions used for their preparation were confirmed by i.r. and intrinsic viscosity data. The water sorption of films of the blocks was determined and the results, calculated on the cellulose content, compared with various forms of pure cellulose. It was found that lower crystallinity of the blocks was indicated by the higher water sorption values. As the 

Preparation and Performance of Continuous Glass Fiber Reinforced 29 Jul 2016 As the light-weight and high-strength thermoplastic composites, novel honeycomb sandwich panels were discussed in this paper: continuous glass fiber reinforced polypropylene (GF/PP) laminated sheets were used as the surface and polypropylene (PP) honeycomb was used as the core. The effects of honeycomb core's height, thickness and aperture on the mechanical properties were analyzed in this paper. The composite honeycomb sandwich panels exhibited 

Polypyrrole—polypropylene composite films: preparation and polypyrrole—polypropylene conducting polymer composite films with good mechanical properties and high electrical conductivity were prepared using a two-direction permeation/diffusion polymerization method. The oxidant used was iron(III) chloride. polypropylene microporous films prepared by the biaxial stretching technique were used as the matrix material. The maximum conductivity of these composite films, 6.0 S cm<sup>−1</sup>, is of the same order of magnitude as that of pure&nbsp;

Researches on preparation and properties of polypropylene polypropylene composite nonwovens containing rare-earth strontium aluminates SrAl2O4:Eu<sup>2+</sup>,Dy<sup>3+</sup> and functional additives were fabricated by the spun-bonded technique. The optical properties, morphology and mechanical properties of the samples were characterized. Results from scanning electron microscopy photographs (SEM) indicated that the surface of the fiber was destroyed by the addition of rare earth luminescent materials lightly but the thickness of the fiber was&nbsp;

Preparation of poly (propylene carbonate)/organophilic rectorite The completely degradable nanocomposites comprised of poly(propylene carbonate)(PPC) and organo-modified rectorite (OREC) were prepared by direct melt intercalation. The structure and mechanical properties of PPC/OREC nanocomposites were investigated. The wide-angle X-ray diffraction (WAXD) results show that the galleries distance of OREC is increased after PPC and OREC melt intercalation, which indicates that PPC molecular chain has intercalated into the layers of&nbsp;

Environmental and Cost Assessment of a Polypropylene 19 Aug 2007 glass fiber-reinforced polypropylene as automotive panels. In all three cases, the use of the PP À36.5% for agricultural film, and. À1.25% for automotive panels. It goes without saying that a product's impact on the environment will decrease when less material is used. The production and incorporation of nanoparticles, however, may have additional impacts. We .. preparation of polypropylene, the mix/dilution step, the use phase, and the waste treatment phase.

Preparation and characterization of polypropylene and waste tire 17 Nov 2008 Abstract. Waste tire powder subjected to allylamine modification in the presence of ultraviolet (UV) radiation has been used to prepare polypropylene based thermoplastic vulcanizates with maleic anhydride polypropylene (MA-PP) as compatibilizer. The effect of increasing the concentration of MA-PP on performance characteristics like tensile strength, elongation and rheological properties have been investigated. X-ray diffraction studies of the PP/waste tire powder&nbsp;

Preparation and characterization of polypropylene/silica composite A novel interpenetrating structural ultrafine polypropylene-silica nanocomposite particles were synthesized by a modified sol–gel approach in the presence of the melt polypropylene emulsion. A series of samples with different polypropylene content was prepared to investigate the unique characteristics of this original nanocomposite. The thermal gravimetric analysis and differential scanning calorimetry results showed that the nanocomposites had the interpenetrating structure and&nbsp;

Preparation of some thermal stable polymers based on diesters of Based on polyethylene (PE) and polypropylene (PP) oxides, six macromonomers were prepared through two steps. The first step was esterification of the PE and PP oxides, with oleic acid to give the corresponding monoesters. The second was the diesterfication of the prepared monoesters with methacrylic acid to give the corresponding diesters. The prepared macromonomers (diesters) were polymerized to obtain six polymers. The chemical structure of the prepared mono- and&nbsp;

Preparation and properties of self-reinforced polypropylene/liquid The mechanical properties of self-reinforced liquid crystalline polymer/polypropylene (LCP/PP) blends strongly depend on the viscosity ratio of the blend components in the melt. This ratio was determined for PP blends with different commercial LCPs (Vectra A950 and Vectra B950), by means of capillary rheometry, under conditions representative for the blending process during extrusion. It was found that optimal mechanical properties were achieved when the LCP/PP viscosity ratio&nbsp;

Preparation and characterization of electrically conductive polypropylene particles 35 μm in diameter were chemically coated with polypyrrole. The content of polypyrrole varied from 1.1 to 10.4 wt%. polypropylene/polypyrrole (PP/PPy) composite films about 0.2 mm thick were prepared by compression moulding of modified powders. The electrical conductivity of compression moulded samples depends on the concentration of polypyrrole, and reached values from 4 × 10<sup>−10</sup> to 5 × 10<sup>−3</sup> S cm<sup>−1</sup>, which is about seven orders of magnitude&nbsp;

Preparation of a New Radiolabeled Biomaterial and Its Biomaterials have attracted more attention from biomedical research in recent years. Yet there are still unmet demands for current biomaterials, such as the reduction of local inflammation of the implantation site. poly-propylene Carbonate (PPC), a polymer with ester bonds on CO2 backbone, degrades to CO2 and water, which are natural components of human body, yielding less inflammatory response than traditional biomaterials. However, the tensile strength and heat resistance&nbsp;

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