Surface modification of CFs by different acids, bases, and surfactants has been explored 35 36 37 . Notably, very strong acids or bases can degrade the fiber quality and result in poor
Chemical Modification of the Fiber Surface Print Send Share. Thermoplastic Composites : Solutions to Optimize Matrix Fiber Interface Thermoplastic composite materials often suffer from a lack of fiber-matrix adhesion. A weak interface in these materials results in low stiffness and and strength but a high resistance to fracture. On the other
Wood polymer composites were manufactured from several types of tropical wood species by impregnating the woods with acrylonitrile monomer solution. The physical and mechanical properties of wood polymer composites were then investigated in this study. The vacuum-pressure method was employed to impregnate wood samples with monomer and in situ polymerization.
The implications of the surface modification achieved are discussed primarily in terms of nanotubepolymer composite applications. The chemical nature of the interface plays a crucial role in the mechanical properties of nanotube-reinforced polymer composites.
Chemical reactions taking place on the surface of the fiber were followed by FTIR spectroscopy. Foldes, E and Pukánszky, B 2000, ' Chemical modification and adhesion in carbon fiber/epoxy micro-composites; Coupling and surface coverage ' Polymer Composites, vol. 21, no. 3, pp. 387 / Chemical modification and adhesion in carbon fiber
Surface modification is the act of modifying the surface of a material by bringing physical, chemical or biological characteristics different from the ones originally found on the surface of a material.
Abstract. The main approaches that have been taken to chemically modify polymer surfaces are introduced and reviewed. These are wet chemical oxidation, plasma treatment, classical organic chemistry, and attachment of polymer chains.
In Situ Surface Chemical Modification of Thin-Film Composite Forward Osmosis Membranes for Enhanced Organic Fouling Resistance. microstructure and the chemical composition of the surface. 42.
Chemical Modification of Wood for Improved Adhesion in Composites Roger M. Rowell Abstract Failures in adhesion of wood particles or fiber in a composite board can result from several factors.
Its surface properties are modified to improve the adhesion between it and the matrix of the composite material. Further, since only the surface structure of the natural fiber is modified, the body of the grafted fiber remains unchanged and maintains its mechanical resistance.
Also, the effects of CW particle surface modification on the mechanical and water sorption properties of epoxy resin composites were investigated in detail. It was observed that PECVD-treated CW particles had much more positive effects on the thermal, mechanical, wettability and flammability properties of composites.
In Situ Surface Chemical Modification of Thin-Film Composite Forward Osmosis Membranes for Enhanced Organic Fouling Resistance Xinglin Lu , Santiago Romero-Vargas Castrillón , Devin L. Shaffer , Jun Ma * , and Menachem Elimelech *
Effect of chemical modification of titanium dioxide surface with dicarboxylic acid on the crystalline parameters and rheology behavior in polypropylene composites.
Key words: Surface modification, supercritical drying, polymer-dispersed liquid crystal, surface anchoring. 1. Introduction The electrooptical properties of the composites before chemical modification are measured at this stage of the process. The liquid crystal is removed from the composite as described above, and the
Abstract. In order to improve our understanding of the mechanisms involved in the electrooptical effects of liquid crystalpolymer composites, and to identify the relevant parameters of these complex systems, we have investigated the influence of the chemical nature of the polymer surface on the anchoring of the liquid crystal.
Chemical and spectroscopic analyses identified, on the carbon surface, the presence of many functional groups such as carboxyl, phenol, lactone, carbonyl, and quinone .In some carbon black hydroxyl content was determined by direct chemical analysis The aim of this paper is a study of the modified carbon fiber surface characteristics and their behavior in polymer composites.