Embodiments of the invention relate to flame resistant fabrics formed of a combination of filament and long staple yarns that exhibit excellent physical and thermal properties at relatively light weights.

Disclosed is a method for preparation and activation of a super hydrophobic electret nanofibrous filter material for cleaning PM2.5, comprising the steps as follows: (1) dissolving polymer powders and resin into a corresponding solvent so as to prepare a polymer solution, then stirring on a magnetic stirrer and standing for use; (2) in order to reinforce the electrostatic effect of the fiber, before preparing the polymer solution, adding in organic electret nanoparticles into the solvent, then oscillating with an ultrasonic oscillator; (3) in order to reinforce the super hydrophobic effect of the filter, spraying a low surface energy solution on the prepared nanofiber with a designed nozzle to carry out modification.

Disclosed is a thread combining multiple polymers. The thread consists of fibers of a first synthetic polymer of the Polyethylene terephthalate (PET) family and fibers of a second synthetic polymer of the Polyimide family, wherein the first fibers and the second fibers are combined together such that the resulting material, forming the thread, blocks photons with wavelengths falling within a first range of wavelengths and allows passage of photons with wavelengths falling within a second range of wavelengths. Photons whose wavelengths are within the second range of wavelengths, allowed to pass by the resulting material, may contribute to tanning of human skin.

A flame-resistant fabric containing staple yarns which contain non-FR cellulosic fibers, modacrylic fibers, and non-flammable fibers intimately blended together. At least a portion of the non-flammable fibers comprise an energy absorbing additive to form energy absorbing fibers. The fabric comprises less than 14 wt. % of energy absorbing fibers and the fabric has an arc resistance according to ASTM F1959/F1959M-14e1 of at least 1.33 calories per square centimeter per ounce per square yard of fabric.

The present invention relates to a helical toothed belt including: a back portion; a tension member buried in the back portion; and a plurality of tooth portions arranged at a predetermined interval along a belt longitudinal direction on one surface of the back portion, in which the plurality of tooth portions have a tooth pitch of 1.5 mm or more and less than 2.0 mm, the back portion has a thickness of 0.4 mm or more and 1.2 mm or less, the tension member is formed of a twisted cord containing a high-strength glass fiber or a carbon fiber, and the ratio of the total value of an interval between the tension members adjacent to each other to the belt width is 20% or more and 60% or less.

The present disclosure discloses a method for preparing a pure chitosan fiber, and relates to the technical field of preparation of chitosan. The method includes the following steps: S1, preparing an acetic acid solution; S2, preparing a chitosan stock solution; S3, treating a chitosan spinning solution; and S4, preparing a chitosan fiber. In step S3, a pretreatment machine includes a body; an driving mechanism is arranged in the body; a stirring mechanism is arranged in the driving mechanism; a scraping mechanism is arranged below the driving mechanism; a preliminary treatment mechanism is arranged at an inner upper side of the body; the driving mechanism penetrates through the preliminary treatment mechanism and is arranged in the body; a separation mechanism is arranged on a bottom of the body.

Disclosed is an electrode including a polymer fiber aggregate and a manufacturing method thereof. The electrode may be used in a capacitor and include a cut conductive polymer fiber and pores therein to increase a specific surface area even when the thickness is increased, thereby increasing ion conductivity and improving energy power and a manufacturing method thereof.

The present invention contemplates a method for forming a reformable epoxy resin material into a fiber format and: (i) weaving the reformable epoxy resin material (10) with a reinforcing fiber (12) to form a woven material; (ii) stitching a secondary material (14) with reformable epoxy resin material; and optionally (iii) forming a web or mesh with the reformable epoxy resin material.

A fabric that includes an air jet core-spun yarn including a core composed of continuous filament thermoplastic yarns and a sheath composed of cellulose staple wrapper fibers or cellulose-rich staple fibers, wherein the fabric is treated with a flame retardant compound.

A gas diffusion layer for proton exchange membrane fuel cell and preparation method thereof are provided. The preparation method is to papermake and dry carbon fiber suspension mainly composed of a fibrous binder, water, a dispersant and carbon fibers with different aspect ratios to obtain a carbon fiber base paper, and then carbonize and graphitize under the protection of nitrogen or inert gas to obtain a gas diffusion layer for proton exchange membrane fuel cell; where the fibrous binder is a composite fiber or a blend fiber composed of a phenolic resin and other resin; where the prepared gas diffusion layer for proton exchange membrane fuel cell has a pore gradient, and the layer with the smallest pore size is an intrinsic microporous layer.