7results about "Monocomponent polystyrene artificial filament" patented technology

The application belongs to the field of functional polymer materials, and particularly relates to a preparation method of a high-toughness hydrophobic fiber membrane without the action of an electric field force. An ultrahigh molecular weight polymer prepared by room temperature emulsion polymerization is fully dissolved in a high-boiling-point polar solvent, and a high-toughness polymer fiber membrane with good hydrophobicity is obtained by using a microfluidic nanogas jet spinning technology. The preparation method is simple to operate, does not need a static electric field, has strong controllability, good spinnability, can be tractionally stretched, can orderly form a film through a chemical reaction, has fast surface drying, and is low in energy consumption.

The invention relates to lithium-based battery systems and, more particularly, to electro-spinable solution compositions, electro-spun sulfur-polymer fibers, e.g., wires and yarns, and their use in preparing high performance sulfur mattes, e.g., electrodes, for lithium-sulfur batteries with potential applications in small-scale mobile devices. The sulfur-polymer fibers have nanoscale dimensions and yarn-like morphology. The sulfur-polymer fibers can be prepared by co-dissolving sulfur and polymer in a solvent for forming the electro-spinable solution, and electrospinning the solution. The electrospun fibers can be used to form a composite that includes alternating layers of the electrospun fibers and polymer on a current collector.

The present invention provides a fiber containing syndiotactic polystyrene that exhibits dyeability with disperse dyes and shrinkage at high temperatures equivalent to those of polyester fibers. [Solution] The fiber is characterized by containing a mixture of syndiotactic polystyrene A and atactic polystyrene B, wherein the amount of atactic polystyrene B is 15 to 50 parts by mass per 100 parts by mass of the total of syndiotactic polystyrene A and atactic polystyrene B, wherein the crystallite size D(110) in the (110) plane determined by X-ray diffraction is greater than 0 Å and 75 Å or less, and the crystallite size D(002) in the (002) plane is 75 Å or more and 110 Å or less.

The application discloses a kind of porous polymer fibers and preparation method and application thereof, and relates to the technical field of foamed material.The preparation method of the porous polymer fiber provided by the application foams polymer matrix containing foaming agent by adopting the process of extrusion foaming, and by controlling the parameters in the extrusion process, the controllable foaming of polymer is realized, and the obtained porous polymer fiber, the density reaches 0.7g / cm 3 The following has high porosity, and the cell distribution and size are uniform, the range of cell size in the fiber is kept within 20 μm, and the cells are distributed from the center to the outer layer, and the diameter of the fiber can reach 0.3-0.4 mm while maintaining high uniformity.

To provide polymer filaments compatible with fused filament fabrication, capable of reducing volatile organic compound (VOC) emissions while 3D printing.SOLUTION: Polymer filaments comprise a thermoplastic polymer and a bio-based additive; the bio-based additive is admixed with the thermoplastic polymer in an effective amount to decrease total volatile organic compound (TVOC) emissions under additive manufacturing conditions, as determined by gas chromatography and measured relative to the thermoplastic polymer alone, by at least about 10% on a weight basis. Methods for forming a polymer filament compatible with fused filament fabrication may comprise: forming a melt blend comprising a thermoplastic polymer and a bio-based additive; and extruding the melt blend and cooling to form a polymer filament comprising the bio-based additive admixed with the thermoplastic polymer.SELECTED DRAWING: Figure 1

The invention relates to the technical field of oil-water separation, in particular to an oil-water separation membrane with dye adsorption and pH response as well as a preparation method and application of the oil-water separation membrane. The invention relates to an oil-water separation membrane with dye adsorption and pH response, which is a fiber membrane prepared from modified polystyrene through electrostatic spinning, and the modified polystyrene has a structure as shown in a formula (I). The number average molecular weight of the modified polystyrene is 100,000 to 200,000; the ratio range of m to n is (1-3): 1. According to the invention, methoxyl is introduced to a carboxyl modified polystyrene benzene ring, so that the flexibility of polymer molecules is optimized, the spinning stability is improved, the brittleness of the membrane is improved, the membrane has an excellent separation effect on an oil-water mixture and an oil-water emulsion, also has an excellent dye removal effect, and achieves a synergistic strengthening effect of oil-water separation and dye adsorption.

The present invention relates to a hollow fiber membrane comprising a polymer and an antioxidant, wherein the antioxidant is present in an amount of 0.01 to 5 parts by weight per 100 parts by weight of the hollow fiber membrane.