102 results about "Ethylene bis" patented technology

The invention relates to the technical field of high-performance polyester, in particular to a high-strength low-shrinkage polyester fiber and a preparation method thereof. The defects that existing polyester fibers are poor in strength and shrinkage resistance are overcome. The preparation method comprises the following steps: mixing the modified resin, the modified nano silicon dioxide, the composite antioxidant, the composite nucleating agent and the composite lubricant, and carrying out melt spinning. Wherein the modified resin is prepared from the following raw materials: dimethyl terephthalate, isophthalic acid, ethylene glycol and isosorbide; the modified nano silicon dioxide comprises nano silicon dioxide, KH570 and silver nitrate; the composite antioxidant comprises an antioxidant 1010, an antioxidant 168 and an antioxidant 1222; the composite nucleating agent comprises sodium benzoate and nano montmorillonite; the composite lubricant is prepared from ethylene bis stearamide and pentaerythritol stearate. The prepared polyester fiber is high in strength, high in shrinkage resistance and suitable for manufacturing of outdoor equipment.

The invention discloses an anti-yellowing PVB (Polyvinyl Butyral) adhesive for laminated glass and a preparation method thereof, and relates to the technical field of adhesives. The yellowing-resistant PVB glue for the laminated glass has the advantages that the yellowing resistance is high; the modified PVB / nano silicon dioxide composite material is prepared from the following raw materials in parts by weight: 55 to 65 parts of modified PVB resin, 4 to 6 parts of modified nano silicon dioxide, 15 to 20 parts of dioctyl adipate, 0.5 to 1 part of a compound antioxidant, 0.3 to 0.8 part of an ultraviolet absorbent UV-327, 0.2 to 0.5 part of a silane coupling agent KH-560, 0.3 to 0.6 part of ethylene bis stearamide, 0.1 to 0.3 part of 2-benzimidazole methyl carbamate, 3 to 5 parts of tris (1-chloro-2-propyl) phosphate and 0.1 to 0.3 part of nano titanium dioxide. 5 to 8 parts of isopropanol; 0.8 to 1.2 parts of polycarbodiimide. The special modified PVB resin and the nano silicon dioxide are matched with the auxiliary agents such as the compound antioxidant, the anti-yellowing performance of the PVB glue for the laminated glass is remarkably improved through precise process preparation, the components have a synergistic effect, the process is controllable, the product performance is stable, and the cohesiveness is good.

The invention discloses a low-dielectric-constant polyamide material, and relates to the technical field of high polymer materials. The invention discloses a low-dielectric-constant polyamide material. The composite material is prepared from the following raw materials in parts by weight: 35 to 45 parts of polyamide 66, 5 to 10 parts of polytetrafluoroethylene micro powder, 8 to 12 parts of modified porous siloxane microspheres, 3 to 7 parts of modified nano zinc oxide, 10 to 15 parts of glass fibers, 4 to 8 parts of polyether-ether-ketone, 1 to 3 parts of graphene nanosheets, 3 to 5 parts of fluororubber, 1 to 2 parts of a titanate coupling agent, 0.3 to 0.7 part of an antioxidant 1010, 0.5 to 1.0 part of ethylene bis stearamide and 0.1 to 0.3 part of an ultraviolet absorbent UV-531. The low-dielectric-constant polyamide material has the remarkable advantages that the raw materials are scientifically proportioned, and various modified components are contained to enhance the performance; all the components are subjected to special treatment, so that the compatibility is good; the preparation process is rigorous, and the material has excellent dielectric properties; and the material also has good heat resistance and weather resistance and strong mechanical properties, and is suitable for various scenes with high dielectric constant requirements.

The invention discloses an anti-aging light-conversion silver black mulching film and a preparation method thereof, and belongs to the technical field of agricultural polymer films. The preparation method comprises the following steps: S1, mixing low-density polyethylene powder, aluminum paste, a complex light conversion agent, dioctyl phthalate and EVA (Ethylene Vinyl Acetate) to prepare silver light conversion master batches; s2, vinyl-terminated fluorosilicone oil, tert-butyl peroxybenzoate and linear low-density polyethylene powder are stirred for a reaction, and modified low-density polyethylene is obtained; the modified low-density polyethylene, maleic anhydride grafted polyethylene, a multi-effect light stabilizer and polyethylene wax are subjected to banburying granulation, and modified light-stable master batches are obtained; s3, carrying out banburying granulation on the low-density polyethylene powder, the polyethylene powder, carbon black, zinc stearate, ethylene bis-stearamide and the EVA powder to obtain black master batches; s4, blending the silver layer and the black layer, and performing double-layer co-extrusion to obtain the light-conversion silver-black mulching film. The light-conversion silver black mulching film provided by the invention has good mechanical properties and aging resistance.

The invention provides a bio-based low-temperature curing powder coating and a preparation method thereof, and belongs to the technical field of powder coatings, and the bio-based low-temperature curing powder coating specifically comprises the following components in parts by weight: 65-75 parts of bio-based resin, 5-6 parts of triglycidyl isocyanurate, 0.05-0.15 part of tetrabutylammonium bromide, 8-12 parts of air glass beads, 4-6 parts of mica and 0.4-0.6 part of ethylene bis stearamide. 0.7 to 1.3 parts of flatting agent, 0.2 to 0.5 part of benzoin, 0.3 to 0.7 part of amide wax and 6 to 8 parts of pigment. The curing temperature of the bio-based low-temperature curing powder coating is 100-120 DEG C, and the bio-based low-temperature curing powder coating has the advantage of low curing temperature, can be suitable for surface coating of plastic devices, has the advantages of salt mist resistance, impact resistance and the like, and can effectively solve the problems of existing powder coatings.

The invention discloses a halogen-free flame-retardant epoxy resin system composition and application, the epoxy resin system composition is composed of an epoxy resin part and a curing agent part, the epoxy resin part is composed of dihydroxydiphenylmethane glycidyl ether, 2, 2 '-[(1-methylethylene) bis (4, 1-phenylene formaldehyde)] dioxirane, 2, 2'-dihydroxydiphenylmethane glycidyl ether, 2, 2 '-[(1-methylethylene) bis (4, 1-phenylene formaldehyde)] dioxirane, 2, 2'-dihydroxydiphenylmethane, 2, 2 '-dihydroxydiphenylmethane, the halogen-free flame retardant is composed of hydroxyl-terminated polysiloxane modified bisphenol A glycidyl ether, an organophosphorus flame retardant, an active diluent and an auxiliary agent. And the curing agent part consists of an alicyclic amine curing agent, amine-terminated polyether and an accelerant. The epoxy resin system composition provided by the invention is low in mixing viscosity and strong in operability, a cured product has excellent toughness and heat resistance while ensuring that the flame retardant grade meets UL94V0, and the problems that a halogen-free flame-retardant system is poor in process operability, the performance of the cured product is reduced, halogen elements can release harmful gas at high temperature, and the service life of the cured product is prolonged can be effectively solved. And harm to human health and environment is caused.

The invention relates to an odorless antibacterial polymer-based composite material and a preparation method thereof. The odorless antibacterial polymer-based composite material comprises the following components in parts by weight: 20-30 parts of modified water-borne epoxy resin, 5-20 parts of a water-borne epoxy resin curing agent, 5-10 parts of a dispersing agent, 5-10 parts of a defoaming agent, 5-10 parts of a flatting agent, 5-10 parts of a coalescing agent, 5-10 parts of modified glass fibers, 20-30 parts of filler, 5-10 parts of an antibacterial agent, 3-8 parts of an antioxidant and 20-30 parts of water. The coating has excellent properties, such as good adhesiveness, corrosion resistance, good mechanical properties, good antibacterial property, good weather resistance, water resistance and the like. And the modified tetrapod-like zinc oxide whisker is compounded with the ethylene bis-dithiocarbamic acid zinc, so that the problem of poor compatibility with the odorless antibacterial polymer-based composite material when the modified tetrapod-like zinc oxide is independently added is solved, the surface hardness of the odorless antibacterial polymer-based composite material is increased, and the service life of the odorless antibacterial polymer-based composite material is prolonged.

The invention discloses a full-biodegradable bag and a preparation method thereof in the technical field of biodegradable materials.According to the full-biodegradable bag, polylactic acid and poly (butylene adipate-co-terephthalate) serve as matrixes, and performance optimization is achieved by adding a specially-made nanofiber interpenetrating network compatibilizer and a star-shaped structure bio-based plasticizer; wherein the nanofiber interpenetrating network compatibilizer is prepared by grafting polylactic acid and poly (butylene adipate-co-terephthalate) chain segments on cellulose nanofibers through an atom transfer radical polymerization technology, and the star-shaped structure bio-based plasticizer is prepared through ring opening polymerization and melt grafting technologies. In addition, the formula also comprises a maleimide modified lignin filler, an ethylene bis stearamide lubricant and an antioxidant. Through the synergistic effect of the two specially-made modified compounds, the compatibility of all the components is remarkably improved, the preparation process is simple and reliable and suitable for industrial production, and the problem of white pollution of traditional plastic products can be effectively solved.

The application discloses a micro-smoke and odor-free cast steel environment-friendly regenerated coated sand process, which replaces a lubricant with hydroxyethyl ethylene bis-stearamide and corresponding auxiliary triisopropyl phosphate, significantly enhances the hot tensile strength and environmental protection of the coated sand, removes the solidified resin on the surface of the coated sand through a frozen shell breaking mode, greatly improves the shell breaking rate of the coated sand waste sand through modified aluminum nitride and preparation of a shell breaking auxiliary, and prepares a friction auxiliary to enhance the particle shaping of the coated sand regenerated sand, and further enhances the flowability of the coated sand prepared from the regenerated sand.

The present invention relates to a composition containing (a) a guanidine and / or an unsubstituted guanidine salt, and (b) at least one further component selected from the group consisting of 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 1, 2-benzisothiazolin-3-one, N-butyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, 2-benzisothiazolin-3-one, N-methyl-1, the cleaning agent is prepared from 2-benzisothiazolin-3-one, octyl isothiazolinone, bronopol, dibromo-nitrilopropionamide, dibromo-dicyanobutane, butyl carbamic acid iodopropynyl ester, aminomethyl propanol, aminoethyl propylene glycol, monoethanolamine, ethylhexylglycerin, hexylglycerin, 1, 2-pentanediol, 1, 2-hexanediol, 1, 2-heptanediol, 1, 2-octylene glycol, phenoxy ethanol and phenethyl alcohol. The cleaning agent is prepared from phenyl propanol, benzyl alcohol, isopropanol, ethylenediamine tetraacetic acid, (1-hydroxyethylidene) diphosphonic acid, 2-mercaptopyridine sodium oxide, 2-mercaptopyridine zinc oxide, o-phenylphenol, sorbic acid, benzoic acid, salicylic acid, lactic acid, citric acid and zinc. The invention also relates to an industrial product containing components (a) and (b), and to the use of said composition for the preservation of containers and for the preservation of industrial products. The invention also relates to the use of (a) a guanidine and / or an unsubstituted guanidine salt for improving the antimicrobial efficacy of one or more compounds selected from the group (b) described above.

The invention provides a bi-component spun-bonded non-woven fabric and a production process thereof, and belongs to the technical field of non-woven fabrics. The non-woven fabric is composed of bi-component fibers of a skin-core composite structure, the skin layer of the bi-component fibers is composite polypropylene, and the core layer of the bi-component fibers is polycaprolactam; the preparation method of the composite polypropylene comprises the steps of polypropylene hydrophilic treatment, starch functional treatment and compounding. The hydrophilic treatment of polypropylene comprises the following steps: adding benzoyl peroxide, an antioxidant and ethylene bis stearamide into polypropylene, stirring for 20-25 minutes, adding polyethylene glycol monoallyl ether, stirring for 10-15 minutes, adding polyethylene glycol monoallyl ether again to obtain a polypropylene mixture, putting the polypropylene mixture into a twin-screw extruder, carrying out melt extrusion, and carrying out extrusion molding to obtain the polypropylene material. Hydrophilic polypropylene is obtained; the non-woven fabric is high in water absorption rate, short in liquid penetration time and excellent in strength and chemical stability resistance.

This invention discloses a PBT composition, its preparation method, and its applications. The PBT composition comprises the following components by weight: 44-56 parts PBT resin; 10-15 parts ethylene bis(tetrabromophthalimide); 25-35 parts glass fiber; and 0.5-1 part ultraviolet absorber. This invention, by adding specific ethylene bis(tetrabromophthalimide) and a specific ultraviolet absorber to a glass fiber reinforced PBT composition, results in a PBT composition with minimal color change after aging. This makes it particularly suitable for components requiring long-term outdoor operation, such as smart boat outdoor units, photovoltaic brackets, air conditioner outdoor unit components, and new energy battery components.

The application belongs to the field of high polymer materials, and particularly relates to a color master batch special for lithium battery diaphragm, a preparation method and application thereof. The color master batch provided by the application includes the following components in parts by weight: 55-85 parts of polymer base material, 4-14 parts of mixed colorant, 3-7 parts of antioxidant, and 4.5-12 parts of modified nano filler; the mixed colorant includes the following components: pigment and processing aid, the processing aid is one or more of N,N'-ethylene bis-stearamide, polyethylene wax and coupling agent; and the modified nano filler is a nano filler treated by a surfactant. The application optimizes the component composition of the color master batch, especially modifies the nano filler contained therein to ensure good dispersibility, so as to ensure that the film forming raw material added with the color master batch forms a uniform pore effect in the stretching film forming process.

The invention relates to the technical field of production of chemical materials, and particularly discloses a production process and application of micron-level fatty glyceride fine powder, the production process comprises the following steps: heating and dissolving monoglyceride or triglyceride, fully stirring, conveying to a head tank through a pipeline, keeping the liquid level stable, conveying to a centrifugal spray head, and drying to obtain the micron-level fatty glyceride fine powder. And treating by a high-speed centrifugal rotor to form fine liquid drops, cooling into small particles by cold air input by an air cooler, cooling in a centrifugal drying tower to obtain an intermediate, standing, fully cooling, and sieving to obtain micron-grade fine powder. The invention also provides an application of the fine powder in an expanded polystyrene ultrafine powder coating agent, the coating agent is prepared from monoglyceride, triglyceride, zinc stearate, EBS ethylene bis stearamide and silicon dioxide in specific parts by mass, and the coating agent is produced by adopting a zero-gravity dry mixing method. The particle size of the produced fine powder reaches 75 micrometers or below, the particle size D50 of a finished product is about 50 micrometers, the fine powder can be evenly coated on EPS particles, powder falling is not prone to occurring, and the processing efficiency and the product performance of the EPS industry are improved.

This invention belongs to the field of coal seam development technology and discloses a coal seam wetting reversal agent and its preparation method. The coal seam wetting reversal agent provided by this invention exhibits excellent pH-affected behavior, and the wettability of the coal sample surface by the surfactant EBMAA-DMA12 can be altered by adjusting the pH value of the solution. When the solution pH is less than 6.87, it helps reduce capillary forces and can be used as a water-locking agent. When the pH of the surfactant solution is adjusted to greater than 6.87, it helps reduce the surface free energy of the coal seam and can be used as a coalbed methane desorbent. Furthermore, the method for preparing this coal seam wetting reversal agent involves first synthesizing the dicarboxylic acid intermediate N,N′-ethylenebismaleamic acid (EBMAA) using MAH and EDA, and then obtaining it through a neutralization reaction between N,N′-ethylenebismaleamic acid (EBMAA) and N,N-dimethyldodecylamine. This preparation method uses readily available raw materials, has a simple process, high repeatability and stability, and has significant potential for widespread application.

The invention relates to the technical field of cables, and provides an insulating flame-retardant wire cable and a preparation method thereof. An insulating flame-retardant wire cable comprises a conductor layer and a sheath layer. The sheath layer is prepared from the following raw materials in parts by weight: 40 to 50 parts of ethylene-vinyl acetate copolymer, 20 to 25 parts of low-density polyethylene, 8 to 12 parts of polyolefin elastomer, 15 to 20 parts of magnesium hydroxide and zinc borate core-shell filler, 3 to 4 parts of nano diatomite, 4 to 5 parts of calcium-zinc composite stabilizer, 1 to 1.2 parts of silane coupling agent KH-550, 0.8 to 1.2 parts of antioxidant, 0.5 to 0.8 part of polyethylene wax and 0.3 to 0.5 part of zinc stearate. 0.4 to 0.6 part of ethylene bis stearamide and 0.3 to 0.5 part of polytetrafluoroethylene micro powder. According to the prepared insulating flame-retardant electric wire and cable, the stability of the insulating material of the electric wire and cable is improved; and meanwhile, the flame-retardant effect of the wire cable is improved.

This utility model discloses a reactor for the production of ethylene bis(tetrabromophthalimide), comprising a reactor body, a stirring motor, a servo motor, an internal exhaust valve, and an external exhaust valve. The stirring motor and a discharge pipe are respectively installed at the upper and lower ends of the reactor body. A square rod is fixedly connected to the lower end of the output shaft of the stirring motor, and a stirring paddle is fixedly installed on the lower outer wall of the square rod. A support sleeve is fixedly installed through the reactor body surface on the side of the stirring motor, and a servo motor is installed on the upper end of the support sleeve. A powder pipe and a feeding pipe are respectively installed on the reactor body surfaces on the front and rear sides of the stirring motor, and a powder sleeve and a feeding sleeve are respectively fixed to the inner wall of the cover plate on the side of the powder pipe and the feeding pipe. This reactor for the production of ethylene bis(tetrabromophthalimide) facilitates the suppression of powder diffusion, thereby preventing powder from filling the reactor and affecting the reaction of the materials, thus improving the practicality of the device.

This application relates to the field of nylon powder, specifically disclosing a composite nylon powder for printing rollers and its preparation method. The composite nylon powder for printing rollers is composed of 82-90% nylon powder, 1-3% a wetting and dispersing agent mixture, 2-5% a binder strengthening agent, and 5-10% filler. The wetting and dispersing agent mixture includes two or more of hydroxyethyl ethylene bis-stearamide, zinc stearate, and lubricant CYD-816A. The preparation method is as follows: nylon powder and the wetting and dispersing agent mixture are mixed, then a mixture of the binder strengthening agent and filler is added, and the mixture is stirred to obtain a mixture. The mixture is then melt-co-extruded, granulated, and pulverized to obtain the composite nylon powder for printing rollers. The wetting and dispersing agent mixture of this application can coat the surface of the nylon powder, improving powder flowability and facilitating the uniform dispersion of filler in the nylon powder, resulting in a composite nylon powder with both excellent mechanical properties and film-forming properties.

This invention relates to the field of polyamide film flexible packaging technology, and particularly to a flame-retardant biaxially oriented polyamide film and its preparation method. The polyamide film, from top to bottom, consists of a flame-retardant upper layer, a flame-retardant polyamide core layer, and a flame-retardant lower layer. By mass parts: the flame-retardant upper layer comprises 1-10 parts of anti-sticking masterbatch and 90-99 parts of flame-retardant nylon composite material; the flame-retardant polyamide core layer comprises 1-15 parts of 3-ethylidene bis(ethylphosphonic acid) aluminum salt and 85-99 parts of flame-retardant nylon composite material; the flame-retardant lower layer comprises 1-10 parts of anti-sticking masterbatch and 90-99 parts of flame-retardant nylon composite material. The flame-retardant biaxially oriented polyamide film provided by this invention not only has excellent flame-retardant properties but also superior mechanical properties, is environmentally friendly and pollution-free, and is particularly suitable for the field of electronic product packaging.

The present application belongs to the technical field of degradable polymer composite materials, and particularly relates to a heat-resistant degradable composite material and a preparation method thereof. In the method, epoxy silane grafted zirconium titanium phytate layered microsheets, lactic acid modified silicon boron calcium phosphate whiskers and light calcium carbonate are premixed with ethylene bis-stearamide and monoglyceride, and then mixed with polybutylene succinate, polylactic acid, polybutylene terephthalate adipate, an epoxy chain extender and an antioxidant, and then subjected to double-screw melt blending, cooling and granulation, drying, molding and heat treatment to obtain the heat-resistant degradable composite material. Through the synergistic effect of the epoxy silane grafted zirconium titanium phytate layered microsheets, the lactic acid modified silicon boron calcium phosphate whiskers and the degradable polyester matrix, the heat resistance, dimensional stability, mechanical strength and processing stability of the material are improved.

The invention relates to the field of automobile films, and discloses an anti-fogging surface TPU film for an automobile film and a preparation method of the anti-fogging surface TPU film, the TPU film is prepared from a thermoplastic polyurethane elastomer, an anti-fogging agent, silane modified nano silicon dioxide, a tetra [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester antioxidant and an N, N '-ethylene bis stearamide lubricant; the silane modified nano silicon dioxide is prepared from an ethanol water solution, acetic acid, gamma-aminopropyltriethoxysilane and nano silicon dioxide; the antifogging agent is prepared from deionized water, polyvinyl alcohol, urea, a phosphoric acid aqueous solution, a sodium hydroxide aqueous solution, epoxy chloropropane and an L-threonine aqueous solution. The TPU film provided by the invention has good antifogging performance, transparency and mechanical properties.

The invention belongs to the technical field of demulsifier preparation, and particularly relates to a demulsifier for an offshore oilfield and a preparation method of the demulsifier. According to the demulsifying agent for the offshore oilfield, modified polysiloxane is used as a main demulsifying agent, tallow alkyl bis (hydroxyethyl) amine oxide and tetradecyl tributyl phosphonium bis (trifluoromethanesulfonyl) imine salt are used as auxiliary demulsifying agents, methyl-1-oleamidoethyl-2-oleyl imidazoline methyl ammonium sulfate is used as a corrosion inhibitor, ethylene bis stearamide is used as a defoaming agent, and the demulsifying agent is prepared through a one-step method. The cosolvent is a dissolution dispersion medium, the triethanolamine is a pH regulator and a corrosion inhibition synergist, and the deionized water is a continuous phase carrier; all the raw materials have a synergistic effect, so that the prepared demulsifier for the offshore oilfield has excellent dehydration and demulsification performance.

Provided is a polyamide resin composition including: 38 wt % to 82 wt % of polyamide 6; 1 wt % to 30 wt % of a long chain polyamide; 15 wt % to 35 wt % of an impact modifier including a polyolefin-based rubber; 0.1 wt % to 1.0 wt % of an antioxidant including a phenol-based antioxidant, an amine-based antioxidant, a phosphite-based antioxidant, or a mixture thereof; and 0.1 wt % to 1.0 wt % of a release agent including ethylene bis stearamide.

The invention relates to a blue boiling-resistant flame-retardant nylon composite material and a preparation method thereof.The nylon composite material is prepared from, by weight, 61-72 parts of nylon resin, 20-25 parts of flame retardant, 5-10 parts of filling mineral, 0.3 part of laser etching powder, 0.3-0.8 part of blue toner, 1-2 parts of dispersing agent and 1 part of processing aid; the flame retardant is a phosphinate halogen-free flame retardant; the filling mineral is kaolin with a lamellar structure; the dispersing agent is a mixture of zinc stearate and N, N-ethylene bis stearamide; the preparation method comprises the following steps: uniformly mixing the components according to the weight ratio, and adding the mixture into a double-screw extruder for extrusion molding to obtain the blue boiling-resistant flame-retardant nylon composite material. The preparation method is simple in process; the prepared nylon composite material has the color difference E of less than 1 before and after water boiling, the flame retardant grade of 1.6 mm V0 and excellent laser marking performance.

The invention provides a plastic composite material, ethylene bis stearamide and a preparation method and application thereof, and relates to the technical field of high-molecular compounds and plastics. The plastic composite material is prepared from the following components: 200 to 380 parts of polyvinyl chloride, 1.5 to 3 parts of ethylene bis stearamide, 5 to 10 parts of plasticizer, 5 to 10 parts of coupling agent, 1 to 2.1 parts of lubricant, 1.5 to 3 parts of zinc stearate, 0.5 to 1.5 parts of barium stearate and 1 to 3 parts of nano montmorillonite. The lubricant is selected from at least one of pentaerythritol stearate and polyethylene wax. Ethylene bis stearamide is compounded with the plasticizer, the coupling agent, the lubricant and the nano montmorillonite, so that the mechanical property and the heat resistance of the plastic composite material are synergistically improved; in addition, the preparation method of the ethylene bis stearamide is improved, and the acid value and the amine value of the ethylene bis stearamide are reduced. The plastic composite material can be widely applied to plastic preparation in different fields.

The application belongs to the technical field of polymer composites, and particularly relates to a sprayable conductive PPE / PA material, which is composed of polyphenylene ether, polyamide, styrene-maleic anhydride copolymer, silane functionalized zinc tin oxide nanowire, boron-nitrogen co-doped reduced graphene oxide-silver hybrid nanosheet, antioxidant and ethylene bis-stearamide. The application first prepares zinc metatitanate nanowire through a hydrothermal-calcination method, and obtains silane functionalized zinc tin oxide nanowire through surface functionalization of aminopropyl triethoxysilane. Meanwhile, the boron-nitrogen co-doped reduced graphene oxide-silver hybrid nanosheet is prepared through a hydrothermal co-doping-in-situ reduction method. The modified compounds are melt blended, extruded and granulated together with polyphenylene ether, polyamide, a compatibilizer and the like, and then a coating is obtained through melt spraying and solidification. The application adopts nanowire and nanosheet to synergistically enhance the conductive network, and the filler is firmly combined with the matrix interface, so that the obtained material has good conductivity and excellent sprayability.

This invention relates to the field of flame retardant chemical synthesis technology, and discloses ethylene bis(tetrabromophthalimide) and its preparation method and applications. The method includes reacting phthalic anhydride and ethylenediamine in an aqueous medium at a controlled mass ratio of 3.0-5.5:1 to obtain an intermediate; reacting the intermediate with bromine in a fuming sulfuric acid medium, controlling the dropping temperature at 45-60℃ and the holding temperature at 130-150℃; and washing the reaction product followed by high-temperature heat treatment at 150-220℃ to constant weight. This invention effectively inhibits residual active amino groups and organic carbonization by strictly controlling the intermediate synthesis ratio and the temperature range of the bromination reaction. By utilizing high-temperature heat treatment, it thoroughly removes deep-seated acidic volatiles that cannot be removed by conventional drying, solving the problems of yellowing appearance, poor heat resistance, and easy corrosion of processing equipment in existing products. It is applicable to the field of flame-retardant engineering plastics.

The invention provides a special material for a polypropylene plastic needle and a preparation method thereof, and belongs to the technical field of high polymer materials and modification. The special material for the polypropylene plastic needle, provided by the invention, is prepared from the following raw material components in parts by weight: 100 parts of homo-polypropylene, 0.5 to 1.0 part of itaconic acid, 0.05 to 0.1 part of (4E)-4-octylenedioic acid, 0.1 to 0.3 part of nano-zinc oxide, 0.1 to 0.2 part of ethylene bis stearamide and 0.1 to 0.3 part of initiator, the melt flow rate of the homo-polypropylene is 2.5 to 4.5 g / 10 min. The special material for the polypropylene plastic needle has excellent elongation at break, toughness and stiffness, the molding qualification rate and the product quality qualification rate are both considered, and the preparation method is simple and easy to control and suitable for industrial production.

The application relates to the technical field of concrete, and particularly discloses early-strength and viscosity-reducing low-water-binder-ratio concrete and a preparation method thereof. The early-strength and viscosity-reducing low-water-binder-ratio concrete comprises cementitious materials, aggregates, water and an additive, the additive comprises hydroxyethyl ethylene bis-stearamide, propoxy glycerol triacrylate and ethoxy polyether modified siloxane, and the mass ratio of water to the cementitious materials is less than or equal to 0.35. The three components of the additive synergistically act on each other, the early-strength component promotes hydration, the viscosity-reducing component reduces friction, and the synergistic component stabilizes adsorption, so that the problem that the early-strength and viscosity-reducing functions of general additives added in low-water-binder-ratio concrete are mutually restricted and the compatibility of the components is poor is solved.

The application discloses a high-temperature non-tackifying material and a preparation method and application thereof, and belongs to the technical field of new energy battery protection films. The self-adhesive layer composition provided by the application comprises the following components in parts by weight: 25-52 parts of a styrene thermoplastic elastomer, 4-28 parts of a tackifying resin, 28-62 parts of a polyolefin substance and 0.008-1.05 parts of a lubricant. The lubricant comprises ethylene bis-stearamide. The polyolefin substance is an ethylene / alpha-olefin copolymer. The high-temperature non-tackifying material provided by the application has a certain peeling force, and after high-temperature treatment, the peeling force change range is within a reasonable range, which is beneficial to peeling after high-temperature treatment and actual application requirements. The application also provides a preparation method of the high-temperature non-tackifying material and application of the high-temperature non-tackifying material in power battery protection films for new energy vehicles.