moulded headliners: a technological assessment

the introduction in the late 1970's of phenolic resin bonded felts as an alternative substrate to glassfiber created a competitively priced material which, in turn, opened the way to larger volume growth for molded headliners for vehicles. today the technology embraces dozens of material options ranging through natural and synthetic fiber..

soft-nip calendering of paper and paperboard

a theoretical, phenomenological description is presented for the changes produced on a paper web by soft-nip or hard-nip calendering both on-machine and off-machine. experimental results compare well with theories in the relevant literature. cotton-filled rolls have been successfully replaced by rolls covered with polymer composites. thes..

relaxation of self-entangled many-arm star polymers

a description is given of the relaxation of star polymers based on the conformational scaling properties predicted by m. daoud and j.p. cotton and confirmed in recent simulations. the authors identify three typical relaxation mechanisms. the first describes elastic deformation of the overall shape. its relaxation time is nearly independen..

air stream facilitated application of cotton foliage treatments

the upper canopy of cotton foliage prevents sprayed droplets from reaching the lower leaves, and especially from reaching the undersides of lower leaves. an air-sleeve sprayer, which uses a vertical air stream, was recently developed to achieve a uniform coverage of all the leaves and was very successful in controlling most insects in the..

cotton cultivation in haryana state, india

various operations needed for raising cotton crop yield have to be mechanized, not necessarily with the costly automatic equipment but with suitable (effective and hazard-free) improvised implements suited to local conditions. this will ensure the proper and effective application of inputs like seed, fertilizer, insecticides, etc., hence ..

kinetics of dust removal from cotton by repetitive mechanical cleaning. part i: theory

two models of the kinetics of dust removal from cotton by repetitive mechanical processing are considered on the basis of the fiber-frictional force applied to clean the fiber. the approach in the constant-force model is to hold the fiber-frictional force constant with repetitive processing. in the decreasing-force model, the fiber-fricti..

surface energy of untreated and surface-modified cellulose fibers

average advancing and receding contact angles made against cotton and glass fibers by a set of probe liquids are determined using the wilhelmy technique. the dispersive and polar components of the surface energy are calculated from the measured contact angles using both the geometric and the harmonic mean methods. it is found that these c..

temperature and humidity control in cotton classing offices

dependable temperature and humidity control systems in cotton classing facilities can reduce varied classing of similar grade cotton. this study examined the dust concentrations and effectiveness of environmental control systems at three usda-ams cotton classing facilities. the hygroscopic nature of cotton fibers and the moisture and heat..

cottonseed linters

the cottonseed linter or fuzz fiber is the short cellulosic fiber that is left after the staple cotton fiber is removed from the seed surface by ginning. cottonseed linters differ essentially from cotton lint (normal length fibers) in length and to some extent morphology. x-ray evidence illustrates that both linters and lint are largely a..

experimental investigation on application of cottonseed oil and its methyl ester as fuels for diesel engine

in this paper a study on the fuel properties of cottonseed oil (cso) and its methyl ester (mecso), the diesel engine performance on cso and mecso as fuel, and the preparation of mecso were carried out the research has shown that mecso is a better alternative fuel for diesel engines than cso. (edited author abstract) 5 refs. in chinese