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36results about How to "Solve the problem of static electricity" patented technology

A kind of plastic hose for mine and its preparation method

The invention relates to a plastic hose for a mine and a preparation method. The plastic hose comprises 90-110 parts of polyvinyl chloride, 28-34 parts of dibutyl phthalate, 36-44 parts of chlorinated paraffin-52, 3-5 parts of stabilizing agent, 1 part of stearic acid, 7-9 parts of flame retardant and 14-16 parts of carbon black. The preparation method comprises the following steps: adding the polyvinyl chloride into a stirrer; respectively adding half of the dibutyl phthalate, half of the chlorinated paraffin-52, half of the stabilizing agent and half of the stearic acid while stirring; adding the rest of the dibutyl phthalate, the rest of the chlorinated paraffin-52, the rest of the stabilizing agent and the rest of the stearic acid when the temperature of the materials is 50 DEG C; adding the lame retardant and the carbon black when the temperature of the materials is 75-80 DEG C; stopping stirring when the temperature of the materials is 85-90 DEG C; granulating to obtain plastic soft layer granular materials when the temperature of the materials is cooled to 50-60 DEG C; and feeding a mold and the plastic soft layer granular materials into an extruder and preparing a product.The plastic hose for the mine, provided by the invention, has the advantages of big crankshaft radius, easiness for bending, high antistatic coefficient and good flame-retardant effect, good sealing effect; and the preparation method is simple and convenient and is convenient to operate.
Owner:PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIP MFG

Processing technology of wear-resistant and flame-retardant fabric

The invention discloses a processing technology of a wear-resistant and flame-retardant fabric. The processing technology comprises the following steps of S1, dip-coating the surface of polyamide fiber with graphene for modification; S2, blending the modified polyamide fiber, mercerized wool fiber and flame-retardant viscose fiber as raw materials into single yarns, plying and twisting two single yarns into yarns, and weaving the yarns with warps and wefts to obtain a fabric base material; and S3, enabling the fabric base material to be subjected to water washing, first mixed solution based soaking, flame-retardant finishing solution based dipping and flame-retardant finishing, and performing water washing and drying to obtain the wear-resistant and flame-retardant fabric. The fabric obtained through processing has excellent wear resistance and flame retardance and also has good wearability, and a more suitable fabric choice is provided for protective clothing of special work types; and the graphene is firmly attached to the surface of the polyamide fiber, so that the wear resistance of the polyamide fiber is improved, meanwhile, the conductivity is improved, and the problem that the wear-resistant and flame-retardant fabric is prone to generating static electricity due to addition of the polyamide fiber is effectively solved.
Owner:安徽弋尚纺织科技有限公司

Production method of polyester film

The invention relates to a production method of a polyester film. The production method comprises the following steps of (1) respectively feeding an antistatic super-bright polyester slice at an upper surface layer, an antistatic super-bright polyester slice at a lower surface layer and a super-bright polyester slice at an intermediate core layer into a three-layer co-extrusion bi-directional stretching device; (2) extruding and melting modified super-bright polyester slices at the upper surface layer and the lower surface layer and the super-bright polyester slice at the intermediate core layer at the temperature of 260 to 280 DEG C to obtain a melt, cooling the melt and casting the cooled melt to generate PET pieces at the temperature of less than 30 DEG C; (3) preheating the cast PET pieces, longitudinally stretching at the temperature of 80 to 100 DEG C, cooling, and setting the cooled PET pieces at the temperature of less than 35 DEG C; (4) then preheating the PET pieces, and transversely stretching at the temperature of 86 to 110 DEG C, setting and crystallizing the set PET pieces at the temperature of 150 to 200 DEG C; and (5) finally removing waste edges of the PET pieces, performing corona treating on the PET pieces, detecting the thickness of each PET piece, and coiling the PET pieces to form the antistatic polyester film with the thickness of 23 to 75 micrometers. Nano zinc oxide is chemically grafted into a PBT (polybutylece terephthalate) material, so that the antistatic effect of a product can be improved.
Owner:福建百宏高新材料实业有限公司

Sizing process of synthetic fiber filament in short fiber sizing machine

The invention belongs to the technical field of textiles, and specifically relates to a sizing process of a synthetic fiber filament on a short fiber sizing machine. The synthetic fiber filament adopts a production process of dyeing first and then sizing; the sizing process is: sizing - drying - moisturizing treatment - antistatic treatment; wherein low-viscosity slurry is used for sizing at roomtemperature when sizing, a single-group drying process is used for drying, and then the yarn after sizing is treated with moisturizing and antistatic treatment. According to the invention, the PVA content in the sizing agent is low; the sizing is performed at room temperature, which ensures the color fastness of the fiber and is more environmentally friendly; meanwhile, by optimizing the drying process route and adding the moisturizing and antistatic treatment process, the defects that the filament fiber is easy to be static during the sizing process on the short fiber sizing machine, the yarndiverges, and the warp beam is broken are perfectly solved; and the weaving efficiency is improved, the steam is saved by more than 30%, the double sizing tank production can be realized, the vehiclespeed is stable, the variety production adaptability is better, and the sizing process of the synthetic fiber filament on the short fiber sizing machine meets the requirements of low-consumption andenvironmentally friendly sizing.
Owner:LUTAI TEXTILE

Dry dust removal filter bag for coke oven

The invention discloses a dry dust removal filter bag for a coke oven. The dry dust removal filter bag, which comprises an outer bag body, an inner bag body and a skeleton, wherein a secondary air flow path is annularly arranged between the outer bag body and the inner bag body, and an air outlet connected with the secondary air flow path is formed in the upper end of the outer bag body; a barrel is arranged between the bottom of the inner bag body and the bottom of the outer bag body, and the open end of the barrel is communicated with the inside of the inner bag body; pores communicated with the secondary air flow path are formed in the two side walls of the barrel, and a sliding block is arranged in the barrel in a sliding way; a spring is arranged at the bottom of the sliding block. The acting stress generated by secondary expansion of the outer bag body is much larger than the acting stress generated by primary expansion thereof, i.e., dust attached to the outer bag body is completely ejected; compared with a dust removal cloth bag with a single-layer structure, the dust removal efficiency is greatly improved, and the expansion of the outer bag body is driven by the expansion of the inner bag body, so that the direct sweeping of air flow on the outer bag body is reduced, and thus the loss of the outer bag body is reduced.
Owner:SICHUAN ANCHUANG ENVIRONMENTAL PROTECTION TECH CO LTD

Preparation method of oral oxiracetam preparation suitable for old people to take

The invention provides a preparation method of an oral oxiracetam preparation suitable for old people to take. Medicines and auxiliary materials are reasonably compatible and are granulated and tableted through a fluidized bed to prepare the preparation, the preparation can quickly disintegrate in the oral cavity under the waterless condition (or under the condition that only a small amount of water exists) and enter the digestive tract with swallowing actions, is consistent with a common tablet in the body about behaviors and is very suitable for old patients difficulty in swallowing. The prepared orally disintegrating oxiracetam tablet is reasonable in composition, prepared fluidized bed granules are thin, small and uniform, the angle of repose ranges from 30 degrees to 35 degrees, the liquidity is good, tablets do not break or is not softened or sticky, astringent and odd flavor phenomena do not occur in the tableting process, and the hardness of the prepared disintegrating oxiracetam tablet is 35-50 N. The disintegrating time limit is 30-40 S, the taste is better, no gravel feeling exists, the dissolution rate accumulated within 20 minutes exceeds 80%, and the oral oxiracetam preparation does not need special production conditions, has the advantages of being low in production cost and convenient to carry, store, transport and take, improves the taking compliance of patients and has a higher practical value.
Owner:CHONGQING RUNZE PHARM CO LTD

Plastic hose for mine and preparation method

The invention relates to a plastic hose for a mine and a preparation method. The plastic hose comprises 90-110 parts of polyvinyl chloride, 28-34 parts of dibutyl phthalate, 36-44 parts of chlorinated paraffin-52, 3-5 parts of stabilizing agent, 1 part of stearic acid, 7-9 parts of flame retardant and 14-16 parts of carbon black. The preparation method comprises the following steps: adding the polyvinyl chloride into a stirrer; respectively adding half of the dibutyl phthalate, half of the chlorinated paraffin-52, half of the stabilizing agent and half of the stearic acid while stirring; adding the rest of the dibutyl phthalate, the rest of the chlorinated paraffin-52, the rest of the stabilizing agent and the rest of the stearic acid when the temperature of the materials is 50 DEG C; adding the lame retardant and the carbon black when the temperature of the materials is 75-80 DEG C; stopping stirring when the temperature of the materials is 85-90 DEG C; granulating to obtain plastic soft layer granular materials when the temperature of the materials is cooled to 50-60 DEG C; and feeding a mold and the plastic soft layer granular materials into an extruder and preparing a product.The plastic hose for the mine, provided by the invention, has the advantages of big crankshaft radius, easiness for bending, high antistatic coefficient and good flame-retardant effect, good sealing effect; and the preparation method is simple and convenient and is convenient to operate.
Owner:PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIP MFG

A liquid crystal display device

The invention provides a liquid crystal display device, which comprises a first transparent glass substrate and a second transparent glass substrate which are arranged oppositely; at least one column electrode arranged in a visible area and at least one column extension electrode corresponding to the column electrode are arranged on the first transparent glass substrate, wherein the column extension electrode is connected with one end of the column electrode, on which a wire is not drawn out, and extends to frame glue outside the visible area; at least one line electrode and at least one line extension electrode corresponding to the line electrode are arranged on the second transparent glass substrate, wherein the line electrode is intersected with the column electrode in the visible area, and the line extension electrode is connected with one end of the line electrode, on which a wire is not drawn out, and extends to frame glue outside the visible area. According to the invention, the column electrode and the line electrode extend to the frame glue through the column extension electrode and the line extension electrode, and therefore the problems that a small piece filled in the area is easy to generate static electricity and a large piece filled in the area can display a pattern contour line in the prior art are solved.
Owner:深圳市合力泰光电有限公司

Production method of polyester film

The invention relates to a production method of a polyester film. The production method comprises the following steps of (1) respectively feeding an antistatic super-bright polyester slice at an upper surface layer, an antistatic super-bright polyester slice at a lower surface layer and a super-bright polyester slice at an intermediate core layer into a three-layer co-extrusion bi-directional stretching device; (2) extruding and melting modified super-bright polyester slices at the upper surface layer and the lower surface layer and the super-bright polyester slice at the intermediate core layer at the temperature of 260 to 280 DEG C to obtain a melt, cooling the melt and casting the cooled melt to generate PET pieces at the temperature of less than 30 DEG C; (3) preheating the cast PET pieces, longitudinally stretching at the temperature of 80 to 100 DEG C, cooling, and setting the cooled PET pieces at the temperature of less than 35 DEG C; (4) then preheating the PET pieces, and transversely stretching at the temperature of 86 to 110 DEG C, setting and crystallizing the set PET pieces at the temperature of 150 to 200 DEG C; and (5) finally removing waste edges of the PET pieces, performing corona treating on the PET pieces, detecting the thickness of each PET piece, and coiling the PET pieces to form the antistatic polyester film with the thickness of 23 to 75 micrometers. Nano zinc oxide is chemically grafted into a PBT (polybutylece terephthalate) material, so that the antistatic effect of a product can be improved.
Owner:福建百宏高新材料实业有限公司

Liquid crystal display device

The invention provides a liquid crystal display device, which comprises a first transparent glass substrate and a second transparent glass substrate which are arranged oppositely; at least one column electrode arranged in a visible area and at least one column extension electrode corresponding to the column electrode are arranged on the first transparent glass substrate, wherein the column extension electrode is connected with one end of the column electrode, on which a wire is not drawn out, and extends to frame glue outside the visible area; at least one line electrode and at least one line extension electrode corresponding to the line electrode are arranged on the second transparent glass substrate, wherein the line electrode is intersected with the column electrode in the visible area, and the line extension electrode is connected with one end of the line electrode, on which a wire is not drawn out, and extends to frame glue outside the visible area. According to the invention, the column electrode and the line electrode extend to the frame glue through the column extension electrode and the line extension electrode, and therefore the problems that a small piece filled in the area is easy to generate static electricity and a large piece filled in the area can display a pattern contour line in the prior art are solved.
Owner:深圳市合力泰光电有限公司
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