53results about How to "Reduced antistatic properties" patented technology

The invention provides an antistatic blended yarn, which is prepared from 20 to 45 percent of polyester fiber, 35 to 70 percent of cotton fiber and 10 to 30 percent of stainless steel fiber by weight percentage through blended spinning. The invention also provides an antistatic sweater produced by adopting the antistatic blended yarn and a method for producing the same. The product of the antistatic blended yarn has antistatic and electromagnetic shielding functions, does not have special requirement on washing, is not influenced by the environment, has complete colors and solid texture, is sweat-resistant and corrosion-resistant, can be applied to special industries such as anti-microwave clothes and radiation-resistant clothes, can effectively prevent human body from being radiated by computers and the like, and particularly protect pregnant women. The antistatic blended yarn can be processed into clothes worn in spring, autumn and winter and the clothes are comfortable to wear with excellent performance.

The invention introduces a GaN-based LED epitaxial wafer and a growing method thereof. At least one cyclic n type defect blocking layer is introduced after an n type GaN layer. Due to the introduction of the n type defect blocking layer, on one hand, a defect that is generated by heteroepitaxy or n type doping can be blocked, thereby improving a growing quality of a crystal; on the other hand, a current can be expanded and an impact of static electricity on a GaN-based LED is softened, thereby enhancing an endurance capacity of the LED to the static electricity; moreover, electrons can access a quantum well effectively and an injection efficiency of the electrons into the quantum well can be increased, so that a brightness of the LED can be enhanced. According to the invention, a chip with an area of 300 * 300 square microns is manufactured according to a standard chip technology; an ESD with 4, 000 V (human body mode) is enhanced from 70% to over 90% and a brightness is raised from 14 mW to over 16 mW.

The invention discloses a high-strength, flame-retardant and antistatic polyolefin pipeline which is mainly prepared from the following components in parts by weight: polyethylene, a modifier, a co-modifier, a peroxide initiator, short glass fibers, a surface coupling agent, red phosphorus, carbon black and a compound stabilizer. The preparation method comprises the following steps: weighing raw materials; performing surface coupling treatment on the short glass fibers; mixing the red phosphorus, carbon black and one part of polyethylene, extruding, and granulating, thereby obtaining a flame-retardant master batch; mixing the residual polyethylene, the modifier and the co-modifier, adding benzoyl peroxide and the compound stabilizer, mixing, adding the short glass fibers subjected to surface treatment and flame-retardant master batch, and performing melt extrusion molding, thereby obtaining the product. The pipeline prepared by the invention is excellent in ring stiffness and tensile strength and has excellent corrosion resistance, static resistance and flame resistance, and the preparation method is simple, high in operability, low in production cost, high in production efficiency and suitable for industrial production, popularization and application.

The method for producing anti-electrostatic knitted includes the following steps: (a) raw material selection; general fibre uses polyester / cotton blended yarn, and conductive fibre uses carbon black type polyester matrix bicomponent fibre; and (b) knitting process; basic stitch is weft plain stitch, knitting the conductive fibre into tuck and float combined stitch, the space distance of conductive fibre is 1.5-2.0 cm, and the yarn tension; polyester / cotton yarn tension is 5-9 cN, and the conductive fibre tension is 3-5 cN, and stitch length: polyester / cotton yarn is 2.5-3.8 mm, and the conductive fibre average stitch length is 1.0-1.8mm.

The invention discloses a flame-retardant antistatic two-component waterborne polyurethane coating and a preparation method thereof. The flame-retardant antistatic two-component waterborne polyurethane coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (8:1) to (10:1); the component A is prepared from the following raw materials in parts by weight: 50-70 parts of methyl methacrylate, 30-40 parts of butyl acrylate, 10-14 parts of methacrylic acid, 5-7 parts of sodium dodecyl sulfate, 10-16 parts of polythiophene antistatic liquid, 2-4 parts of composite conductive mica powder, 5-6 parts of ultrafine carbon black, 4-8 parts of an emulsifier, 2-4 parts of potassium persulfate, 6-8 parts of polysiloxane, 10-12 parts of nano calcium carbonate, and 50-60 parts of water; the component B is prepared from the following raw materials in parts by weight: 6-8 parts of waterborne nitrocellulose, 1-3 parts of modified nano-alumina, and 2-4 parts of a surfactant. The flame-retardant antistatic two-component waterborne polyurethane coating disclosed by the invention is high in environmental protection safety, excellent in flame-retardant and antistatic effects, stronger in adhesion and better in water resistance.

The invention relates to the technical field of plastic product production, and particularly discloses a flame-retardant wood-plastic compound material tray. The tray is prepared from the following raw materials in parts by weight: 50-70 parts of bamboo powder, 45-60 parts of high-density polyethylene, 1-4 parts of silane coupler KH550, 0.3-2 parts of maleic anhydride grafted polyethylene, 0.5-2 parts of sodium stearate, 1-2 parts of polyethylene wax, 0.5-1 part of azodiisobutyronitrile, 3-7 parts of muscovite, 0.2-1 part of p-phenylenediamine, 0.2-1 part of antioxidant 1076, 1-2 parts of black masterbatch, 9-13 parts of compound flame retardant and 6-10 parts of modified carbon black. The flame-retardant wood-plastic compound material tray has excellent electrostatic resistance and flameretardance.

The invention relates to a quaternary amino cation modified polysiloxane softening agent and a preparation method thereof. The structural formula of the softening agent is A1BA2. The preparation method comprises the following steps: (1) mixing hydroxy silicone oil and silane coupling agent according to a molar ratio of 1:1-1:4, and carrying out reaction on the mixture for 4 to 24 hours at the temperature of between 25 and 105 DEG C to obtain an amino terminated siloxane intermediate; (2) carrying out reaction on the amino terminated siloxane intermediate and epoxy quaternary ammonium salt for2 to 10 hours in a solvent under the protection of nitrogen during the whole reaction, and finally vacuumizing the mixture and removing partial solvent to obtain a sticky transparent modified polysiloxane product; and (3) diluting the modified polysiloxane product by water and organic acid to obtain transparent emulsion, and adding an emulsifying agent which is 5 to 10 percent of weight of the emulsion into the emulsion to obtain a product. Compared with the prior art, the softening agent has the advantages of good softness, fluffy feeling, hydrophilicity, extremely low yellowing property, and the like.