modification of jute fibre through vinyl grafting aimed at improved rot resistance and dyeability

raw, dewaxed and oxidized jute fibers and those chemically modified with phenol and formaldehyde (treatment for 3 h at 95 $degree$ c and ph 8) before or subsequent to oxidation were subjected to graft copolymerization with methyl methacrylate (mma) in the presence or absence of some other monomers such as maleic anhydride (ma) or methacry..

painting of plastics in the outer skin of the car body

important plastics used in the outer skin of the car body are smc, pur-rim and rrim as well as thermoplastic polyurethane and thermoplastic polyester elastomers, both with glass fiber reinforcement. a report is given on the painting of moldings made from these materials. the authors outline those requirements that have to be met with resp..

joint venture formed to develop container coating

a joint venture recently formed by american glass research, inc., and ensign-bickford optics co. is devoted to developing and marketing a strength-enhancing coating system for glass containers american glass research has conducted a series of extensive strength tests and performance evaluations of the new, proprietary glass coating materi..

european symposium on textile effluents: recycling, re-use and reduction of pollution

this issue contains three special articles based on papers presented at the european symposium on textile effluents. the symposium focused on recycling, re-use and reduction of pollution the topics discussed are: color removal from textile effluents by micellar aggregation and ultrafiltration; treatment of textile effluents containing bio..

why applying biocides is essential

following recent eec directives to combat pollution of the aquatic environment, wira technology group is looking at ways and means of removing pesticide and mothproofing formulations from textile wastewaters. this is particularly important in view of the fact that although the use of persistent pesticides has been banned in uk textile ind..

core-level binding energy shifts on inp surfaces induced by sputtering and annealing

fabrication of microelectronic devices based upon iii-v semiconductors such as inp will often involve plasma or sputter deposition of materials onto the semiconductor surface. impingement of such high-energy particles during the initial stages of deposition may cause significant surface damage which in turn may affect the electrical prope..

fabrication and characterization of small-diameter vascular prostheses

a process has been developed to fabricate polyurethane vascular grafts of various dimensions and porosities. a primary feature of the fabrication technique is the ability to control surface porosity and roughness, and bulk mechanical properties. the method is based on the spray application of a fine mixture of polymer solution and nitroge..

povrchove upravy sklenenych vlakien. $left bracket$ surface treatment of glass fiber $right bracket$

use of surface treated glass fibers as a reinforcement of anisotropic composite materials results in changes of properties of the composites such as stiffness and, in many cases, also strength with increasing content of the glass fibers. it also leads to increased fatigue time limit in flow, improved hot shape retention, decreased thermal..

use of optical fibre for damage and strain detection in composite materials

a polarization maintaining optical fiber was embedded in a woven glass epoxy composite 3 point bend specimen and loaded to failure to determine the effectiveness of such fiber as a strain gauge and damage indicator. various fiber surface treatments were investigated and the validity of assuming structural strain continuity for those fiber..

on the improvement of carbon fiber/matrix adhesion

in fabricating carbon composites the adhesion between a carbon fiber and matrix can be improved by employing a proper fiber surface treatment prior to the impregnation process. the treatment could be either oxidative or non-oxidative. these treatments are known to increase the interlaminar shear strength of the composite. the adhesion of ..