Recovery and Reuse of Waste PVC Coated Fabrics. Part 1: Experimental Procedures and Separation of Fabric Components

Experiments involved chopping, grinding, and extracting with a methyl ethyl ketone (MEK) solution to separate the polyester in the base fabrics, polyvinyl chloride (PVC) coating, plasticizers, and adhesive in PVC coated fabrics. This swelling recovery method has little environmental impact. The MEK/water system that serves as the swelling..

Review and Recommendation of Testing Approaches for Evaluating Hand Function Effects from Emergency Responder Gloves.

Existing glove standards balance protection from such hazards as chemicals, bloodborne pathogens, and high heat against glove hand function. Standardized tests evaluate wearer dexterity, tactility, and grip. However, these tests have not been successfully applied to improve glove design. The tests fail to discriminate variations in glove ..

Thermal Analysis as Optimum Method to Determine Textile Materials and Their Properties

A review of thermal analysis explains the techniques involved, applications, and examples. According to DIN 51005, thermal analysis measures physical and chemical properties of a substance, a mixture of substances, or mixtures as a function of time and temperature. Thermal analysis techniques include thermal gravimetry, offerential scanni..

Use of SEM in Textile Forensic Work

Forensic and textile scientists conduct scanning electron microscopic (SEM) analysis of fiber and yarn damage to create records for evidence, identify fiber or yarn features associated with different sources of damage, and report the results of controlled experimentation with known sources of textile damage. At present, no established pro..

Prospects of Textile Wet Processing Machinery in the 21st Century

Analysts anticipate greater changes in machinery and technologies for fiber and filament processing and chemical wet processing than in spinning machines and looms. Major influences on future chemical wet processing technologies will include fiber availability and environmental regulations. Fiber production is expected to shift toward man..

Prospects of Textile Wet Processing Machinery in the 21st Century.

Future developments in textile wet processing machinery will focus on its environmental impact. The dissolution of wood pulp for the production of viscose fiber will be achieved via organic solvents. Courtaulds' new technology for solvent dissolution of wood pulp allows regeneration of cellulosic fiber waste into a new type of fiber. The ..

Synthesis of Hydroxypropyl Derivatives of Chitosan and Observation of Phase Behavior of Their Aqueous Solutions.

An experiment synthesized hydroxypropyl derivatives of chitosan with different degrees of substitution (DSs) via etherification of chitosan with propylene oxide. Light absorption, polarized optical microscopy (POM), and small angle light scattering analyzed the phase behavior and liquid crystalline properties of aqueous solutions of hydro..

Polymer Composites Containing Chitosan and Strach as Biodegradable Fillers.

Researchers blended chitosan or potato strach as a biodegradable filler with the oligomeric matrix of a nonbiodegradable unsaturated polyester resin (UPR) or oligo(methyl methacrylate) (OMMA), Polimal 194-3, followed by polymerization of the matrix, which yielded composites containing up to 15 percent chitosan or up to 40 percent starch. ..

Fiber Technology: From Film to Fiber.

An overview of processes for the manufacture of film tapes, split film yarns, and fibrillated film fibers discusses the basic physical and chemical aspects of polymer processing and end uses for these products in the textile industry. Topics discussed include polymers for film to fiber processing, polymer selection and characteristics, st..

Graft Copolymerization of Polyester Fibers with a Fluorine-Containing Monomer.

To improve grafting yield, researchers investigated the graft copolymerization of perfluoroalkanoyl monomer onto polyethylene terephthalate (PET) fibers using a two step grafting method and benzoyl peroxide as an initiator. Grafting polyester monofilaments with perfluorooctyl-2 ethanol acrylic monomer (AC8) (C(8)F(17)-C(2)H(4)-O-CO-CH = C..