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65results about How to "Long-lasting antistatic effect" patented technology

Hydrophilic block polyether amino silicone oil with amino branched chain, and preparation method and application thereof

InactiveCN104031269AStable working fluidThe reaction steps are simpleVegetal fibresDisiloxaneEpoxy
The invention discloses hydrophilic block polyether amino silicone oil with an amino branched chain and a preparation method thereof. The hydrophilic block polyether amino silicone oil with the amino branched chain has the following structure as shown in the specification, wherein R1 is represented by formulas shown in the specification. The preparation method comprises the following steps: carrying out mixing reaction of tetramethyl dihydro disiloxane, polysiloxane and concentrated sulfuric acid, neutralizing with anhydrous sodium carbonate, carrying out reduced pressure pumping to remove a low-boiling-point substance, and thus obtaining silicone oil with the end containing hydrogen; carrying out mixing reaction of the silicone oil with the end containing hydrogen, allyl epoxy polyether and a catalyst, and thus obtaining epoxy silicone oil; carrying out mixing reaction of the epoxy silicone oil, polyether amine and a solvent, and thus obtaining block polyether amino silicone oil; and carrying out mixing reaction of the block polyether amino silicone oil, a silane coupling agent hydrolysate and an alkali catalyst, neutralizing with glacial acetic acid, and thus obtaining the hydrophilic polyether amino silicone oil with the amino branched chain.
Owner:江阴市诺科科技有限公司

Ultrahigh molecular weight polyethylene pipe with long-acting anti-static property and flame retardant property and preparation method thereof

ActiveCN104592617AImprove processing fluidityLong-lasting flame retardant and antistatic propertiesCarbon blackOrganosolv
The invention provides a method for improving anti-static property and flame retardant property of an ultrahigh molecular weight polyethylene pipe and the ultrahigh molecular weight polyethylene pipe with long-acting anti-static property and flame retardant property obtained through the method. According to the method, methyl vinyl siloxane grafted low-density polyethylene is used as a flame retardant and polyelectrolyte grafted low-density polyethylene is used as an anti-static agent in the machining process of the ultrahigh molecular weight polyethylene pipe, and molybdenum disulfide, a lubricant, superfine carbon black and a coupling agent are combined to enhance the processing fluidity, anti-static property, flame retardant property and compatibility with inorganic additives of the ultrahigh molecular weight polyethylene. The pipe wall thickness of the prepared anti-static flame retardant pipe can be up to 40 mm, the oxygen index is higher than 27, the surface resistance of the pipe is 105-1010 ohm, the anti-static property and the flame retardant property hardly decline after the processes of long-time friction, water washing and organic solvent washing, and the application prospect is good.
Owner:FOSHAN RISUN HANKE PLASTIC TECH

Coating for improving wear resistance of PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and preparation method of coating

The invention provides a coating for improving wear resistance of a PVC (polyvinyl chloride) whole-core flame-retardant conveyor belt and a preparation method of the coating. The coating comprises an active interface treating agent coating and a modified polyurethane coating which are arranged on the surface of the PVC whole-core flame-retardant conveyor belt. The active interface treating agent contains methyl ethyl ketone, isopropanol, propylene glycol diacetate, dimethyl nylon acid and polyester glycol L3025. The modified polyurethane coating comprises a component A and a component B, polyester diol L3025 is used for preparing a prepolymer component A, and a reactive flame retardant and an antistatic agent are adopted in the component B. After the PVC whole-core flame-retardant conveying belt is treated by an active interface agent, the modified polyurethane coating is coated by using high-pressure spraying equipment to form a wear-resistant coating. The wear-resistant coating provided by the invention has good tensile strength and elongation at break. The coated PVC whole-core flame-retardant conveyor belt composite coating has excellent bonding strength, flame retardance and antistatic property, particularly has excellent wear resistance and is long in service life.
Owner:LIAOYANG YIBANG NEW BUILDING MATERIALS GRP CO LTD

HDPE double-wall corrugated pipe and production process thereof

The invention relates to an HDPE double-wall corrugated pipe and a production process thereof. The double-wall corrugated pipe is prepared from the following components in parts by weight: HDPE, polypropylene, talcum powder, antistatic masterbatch, anti-impact modified masterbatch, coupling agents, ethylene-propylene-diene monomers, carbon nanotubes and color masterbatch. The production process comprises the following steps: step 1, weighing the raw materials according to parts by weight, then stirring and mixing uniformly to obtain a raw material mixture; step 2, melting the raw material mixture, then extruding through a twin-screw extruder, and then forming through a die to obtain a primary product; step 3, drawing the primary product, and then cutting the primary product according to aspecification to obtain an intermediate product; and step 4, flaring the intermediate product to obtain the double-wall corrugated pipe. According to the HDPE double-wall corrugated pipe and the production process thereof, polypropylene, the anti-impact modified masterbatch, ethylene-propylene-diene monomers and the carbon nanotubes are added into the HDPE double-wall corrugated pipe, so that thedefects of the HDPE double-wall corrugated pipe are overcome, and the ring stiffness and the creep resistance of the corrugated pipe are improved.
Owner:陕西飞天管业科技有限公司
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