Dry spinning is the fiber formation process that transforms a high vapor pressure polymer solution to a solid fiber by controlled fiber evaporation in the spinline. The key variables in dry spinning are heat transfer, mass transfer and stress on the filament. The spinning fiber reaches its final...
The production of this amount of valuable waste has encouraged researchers to develop new recycling strategies such as spinning CF into yarns, fabricating nonwovens, and non-crimp prepreg fabrics using combined recycled and virgin CF. 4.1. Spinning rCF hybrid yarns The methodologies for spinning CF ...
Fibers which contain potentially superconducting material are dry spun by the steps of preparing a suspension of potentially superconducting powder in a thickened solvent; preparing a solution of fiber-forming polymer; supplying the suspension and the solution to a spinning apparatus; in the spinning ap...
3296063Synthetic elastomeric lubricated filament1967-01-03Chandler161/175 Foreign References: EP03172731989-05-24Improved spinning of spandex filaments. EP03934221990-10-24Spinning in water-vapour of segmented polyurethane-urea elastomers. EP03971211990-11-14Elastic polyurethane fiber. ...
A solution of a synthetic fibre-forming organic polymer, such as a spandex polyurethane polymer, an acrylonitrile polymer or copolymer (various comonomers are specified), or a polycarbonamide in a volatile organic solvent such as a dialkylamide of a lower fatty acid, e.g. N,N-...
Green ceramic fibers of Al 2 O 3 , Si 3 N 4 , Ce-ZrO 2 , and SiC were prepared by suspension dry spinning of powderloaded polymer solutions. The fiber-forming polymer was ethyl methacrylate dissolved in methyl ethyl ketone. The experimental conditions for fiber formation were defined for ...
Melt, wet or dry spinning blend of fiber-forming polymer and hard filler; protective glovesdoi:US6126879 AA fiber having increased cut resistance is made from a fiber-forming polymer and a hard filler having a Mohs Hardness Value greater than about 3. The filler is included in an amount of...
A process for the production of continuous inorganic fibers is disclosed which comprises causing a spinning dope composed of a water-soluble organic polymer, a water-soluble inorganic salt capable of forming a refractory inorganic oxide, additives, and water and adjusted to a viscosity of 200 to ...
A two-dimensional mathematical model has been developed for dry spinning of polymer fibers. Among the transport equations, a set of diffusion equations have been derived for ternary systems which explicitly express the solvent evaporation velocities for both components (acetone and water for acetate ...
and a method for providing monomer or polymer having a hydrophilic group onto fiber surface by graft polymerization have been carried out. However, these methods result in poor quick drying characteristics and sticky feeling when get sweaty, due to too strong water-holding ability of fiber, and ...