365 results about "Hyperbranched polyester" patented technology

The invention relates to the technical field of folding screen supporting films, and particularly discloses a double-layer buffering supporting film for a flexible folding display screen and a preparation method of the double-layer buffering supporting film. The double-layer buffer supporting film for the flexible folding display screen sequentially comprises a release film layer, a first adhesive layer, a first stainless steel layer, a second adhesive layer, a second stainless steel layer and a protective film layer from top to bottom, the first adhesive layer and the second adhesive layer are prepared by curing the same pressure-sensitive adhesive composition; the pressure-sensitive adhesive composition is prepared from the following raw materials: acrylate copolymer, hydrogenated rosin glyceride, hyperbranched polyesteramide-dopamine conjugate, acylhydrazone bond modified siloxane, a curing agent and a silane coupling agent; the protective film layer comprises the following raw materials: PET particles, nano silicon dioxide, an ethylene-vinyl acetate copolymer and an antioxidant. The double-layer buffer supporting film has the advantages of being high in supporting rigidity and interlayer peel strength, and serious folds caused by long-term repeated folding of the folding screen can be relieved.

The invention relates to the field of quantum dot ink, and discloses diffusion plate printing quantum dot ink and a preparation method thereof.The diffusion plate printing quantum dot ink comprises acrylic resin, hyperbranched polyester resin, a quantum dot material, modified boron nitride, a reactive diluent, a photoinitiator, a wetting agent and a defoaming agent; the hyperbranched polyester resin is prepared by reacting hyperbranched polyester acrylate and a sulfydryl-terminated silicon-containing reaction monomer, wherein the hyperbranched polyester acrylate is prepared by reacting pentaerythritol with 2, 2-dimethylolpropionic acid and then carrying out esterification reaction with acrylic acid; the sulfydryl-terminated silicon-containing reaction monomer is prepared by reacting eugenol with 1, 1, 3, 3-tetramethyldisiloxane and then carrying out esterification reaction with 3-mercaptopropionic acid; the modified boron nitride is prepared by modifying a cationic polymer which is prepared by carrying out a Mannich reaction on triethylene tetramine, formaldehyde and acetone and then carrying out a condensation polymerization reaction with formaldehyde. After the ink prepared by the invention is cured, a coating film is high in hardness, adhesive force and heat conductivity coefficient, and good in flexibility, heat resistance and migration barrier property.

The invention discloses a synergistic compound light stabilizer for an automobile coating and a preparation method of the synergistic compound light stabilizer, and belongs to the technical field of coating additives. The light stabilizer comprises the following components in percentage by mass: 30-50% of a hindered amine light stabilizer, 20-40% of an ultraviolet light absorber, 5-15% of surface modified nano cerium dioxide, 5-10% of a hyperbranched polyester anti-migration aid and the balance of a solvent, wherein the ultraviolet light absorber is a mixture of benzotriazole and triazine in a mass ratio of (1: 1)-(1: 3); the particle size of the nano cerium dioxide is 10-50nm, and the surface of the nano cerium dioxide is coated with a silane coupling agent; the preparation method comprises the following steps: modifying the surface of nano cerium dioxide, shearing and dispersing multiple components at a high speed, and adjusting and filtering a solvent; the weather resistance of the automobile coating is remarkably improved and the service life of the automobile coating is remarkably prolonged through the synergistic effect of a plurality of light stabilizing components and the combination of the photocatalytic degradation capability of the nano cerium dioxide and the anti-migration characteristic of the hyperbranched polyester.

The invention provides a low-temperature-impact-resistant food packaging material and a preparation method and application thereof.The low-temperature-impact-resistant food packaging material is prepared from, by mass, 100 parts of polylactic acid, 1-10 parts of modified layered double hydroxide and 5-40 parts of hyperbranched polyester; wherein the modified layered double hydroxide is obtained by treating layered double hydroxide with a composite anionic surfactant and then treating the treated layered double hydroxide with an organic cationic compound with a long alkyl chain; the composite anionic surfactant comprises a first anionic surfactant and a second anionic surfactant; wherein the first anionic surfactant comprises sodium dodecyl sulfate; the second anionic surfactant comprises a sulfonate anionic surfactant containing an amido bond and a catechol structure. Through the formula design, the impact toughness of the material at low temperature can be improved while the mechanical property of polylactic acid is maintained, and the material can be suitable for the field of food packaging.

The present invention provides a polyester heat-shrinkable film containing recycled materials and a preparation method thereof, belonging to the technical field of polymer synthetic films. The raw materials of the polyester heat-shrinkable film include recycled PET polyester particles, PET polyester chips, and a modified masterbatch; the modified masterbatch is prepared from polyethylene terephthalate-1,4-cyclohexanedimethanol ester, triphenyl phosphite, polyethylene glycol block copolymer, nano-silica, and hyperbranched polyester amine; the polyethylene glycol block copolymer is prepared from polyethylene glycol and γ-valerolactone under the action of a catalyst; the hyperbranched polyester amine is prepared from trimethylolpropane, methyl crotonate, and diethylenetriamine. The product of the present invention has excellent properties such as excellent unidirectional anti-shrinkage performance and low haze.

The invention discloses an MLCC release film base film and a preparation method thereof, and relates to the technical field of release films, the MLCC release film base film comprises a core layer and a functional coating layer arranged on the outer surface of the core layer; the core layer is prepared from the following raw materials: PET (Polyethylene Terephthalate) resin, functional polyester containing triazolyl tetrafluorophenyl, a coupling agent, reinforced fibers, an antioxidant and a lubricant; the functional coating layer is prepared from the following components: hydroxyl-terminated hyperbranched polyester, isocyano ethyl methacrylate, vinyl trimethoxy silane, nano filler, 3, 3 '-diamino-4, 4'-difluorodiphenyl sulfone, 2, 2 '-bis (trifluoromethyl) diaminobiphenyl, a photoinitiator, a catalyst A and a diluent. The base film is low in surface roughness and warping degree, good in high temperature resistance, high in flatness and appropriate in stiffness.

The invention belongs to the technical field of polymer materials, and provides LED-moisture dual-curing organic silicon modified hyperbranched polyurethane acrylic resin as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, taking first polyhydric alcohol and polyatomic acid as raw materials, preparing a hyperbranched polyester prepolymer containing hydroxyl at the tail end through a first reaction, and further performing a second reaction with an isocyanate compound and second polyhydric alcohol to prepare a hyperbranched polyurethane prepolymer containing isocyanate groups at the tail end; the coating further prepared from the organosilicon modified hyperbranched polyurethane acrylic resin not only can be subjected to UV curing, but also can be subjected to LED curing and moisture curing, energy required by curing is low, curing is 100%, environment friendliness is achieved, VOC is zero, the flash point is 95 DEG C or above, the product curing speed is high, the viscosity is low, and the coating can be widely applied to the field of high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing and high-temperature curing. The paint has the advantages of good flexibility, good film-forming property, strong adhesive force and excellent weather resistance.

The invention provides a polyurethane material for leaking stoppage of a coal mine and a preparation method of the polyurethane material, and belongs to the technical field of polyurethane. The preparation method comprises the following steps: preparing melamine formaldehyde resin balls and ZnAl-LDHs, mixing and reacting the melamine formaldehyde resin balls and the ZnAl-LDHs to prepare LDH-MF composite balls, dipping in an iron salt solution, calcining to prepare composite balls, chloridizing with thionyl chloride, reacting with an ionic liquid and hyperbranched polyester to prepare IL / G composite balls, mixing with polyether polyol and a catalyst, adding into water, adding a foaming agent and silicone oil, heating, stirring and mixing, transferring into a mold, and carrying out extrusion molding to obtain a finished product. And adding diisocyanate, foaming, cooling to room temperature, drying and curing to obtain the polyurethane material for leaking stoppage of the coal mine. The prepared polyurethane material for leaking stoppage of the coal mine has good mechanical property, high temperature resistance and antibacterial property, good flexibility, good antistatic property and obviously improved flame retardance, and has a wide application prospect.

The invention discloses a bio-based fiber reinforced composite material and a preparation method thereof, and belongs to the technical field of bio-based fiber composite materials. The bio-based fiber reinforced composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of nylon 6, 10 to 20 parts of bio-based aramid fiber, 5 to 10 parts of modified carbon fiber, 2 to 6 parts of hyperbranched polyester modified zinc oxide and 1 to 3 parts of antioxidant, the bio-based aramid fiber is prepared by reacting 2, 5-furandicarbonyl chloride with two diamine monomers, and the two diamine monomers respectively contain trifluoromethyl and sulfuryl; the modified carbon fiber is obtained by grafting polyamidoamine on the surface of carbon fiber; the hyperbranched polyester terminal group of the hyperbranched polyester modified zinc oxide contains an epoxy group. The modified carbon fiber, the bio-based aramid fiber and the hyperbranched polyester modified zinc oxide are added into the nylon matrix, so that the composite material is endowed with good ultraviolet resistance, comprehensive mechanical properties and durability.

The invention belongs to the technical field of high polymer materials, and particularly relates to a PET decorative film and a preparation method thereof. The preparation method comprises the following steps: synthesizing hydroxyl-terminated hyperbranched polyester by taking pentaerythritol and 2, 2-dimethylolpropionic acid as raw materials, and reacting with polyol glycidyl ether to prepare an epoxy-terminated organic modifier; silver-loaded nano silicon dioxide subjected to surface treatment by an amino silane coupling agent is used as inorganic functional particles; pET resin, an organic modifier and inorganic functional particles are subjected to melt blending and extrusion granulation, and modified PET is prepared; the modified PET is prepared into the film through a two-way stretching process. Epoxy groups of the organic modifier chemically react with amino groups at the tail end of a PET molecular chain and on the surfaces of inorganic particles respectively, a stable organic-inorganic hybrid network is constructed, synergistic improvement of reinforcement, toughening and long-acting antibiosis is achieved, and the technical problems that functional particles are not uniform in dispersion, interface bonding is weak, and antibacterial components are prone to migration are effectively solved.

The low-VOC modified melamine formaldehyde resin is prepared from the following components in parts by weight: 80 to 100 parts of melamine formaldehyde resin, 5 to 10 parts of hydroxyl-terminated hyperbranched polyester, 8 to 15 parts of epoxy-terminated polybutadiene, 1 to 3 parts of fumed silica, 5 to 15 parts of polyvinyl butyral, 0.1 to 0.2 part of a coupling agent, 1 to 3 parts of a catalyst and 2 to 5 parts of a cross-linking agent, the preparation method comprises the following steps: in a stirring state, adding hydroxyl-terminated hyperbranched polyester, epoxy-terminated polybutadiene, a polyvinyl butyral resin solution and coupling agent modified fumed silica into a melamino-formaldehyde resin solution, heating to 50-70 DEG C, and adding a catalyst and a cross-linking agent; the melamine modified resin prepared by the components and the preparation method has the characteristics of low formaldehyde volatilization, high toughness and durability.

The invention discloses a wear-resistant coating and application thereof on a leather surface, and belongs to the technical field of leather finishing. The coating comprises a functionalized polyurethane-acrylate composite emulsion, a photoinitiator, an auxiliary agent and deionized water. Wherein the composite emulsion is prepared from hyperbranched polyester polyol, a dynamic bond chain extender and the like through prepolymerization, fluorine-containing grafting and in-situ sol-gel reaction, a hyperbranched skeleton provides mechanical support, double dynamic bonds endow a self-repairing function, in-situ nano-compounding enhances wear resistance, a diurea hydrogen bond enhances binding force, and a fluorine-containing side chain endows a coating with hydrophobic and stain-resistant performance; and preparing the coating by matching with a gradient curing process. The coating prepared by the invention has high wear resistance, efficient self-repairing property, firm adhesive force, excellent stain resistance and leather adaptation flexibility, and meets the actual requirements of middle and high-end leather finishing.

The invention discloses a photoaging-resistant thermoplastic polyolefin waterproof coiled material which comprises the following raw materials: basic resin, the material proportion of the basic resin is about 65-75%, and the basic resin comprises high-crystallinity polypropylene, metallocene polyethylene and a cyclic olefin copolymer; the material proportion of the composite stabilizing material and the composite stabilizing agent is about 4-6%, and the composite stabilizing agent comprises a nano cerium oxide coated ultraviolet light absorber, a high molecular weight hindered amine light stabilizer, a novel benzotriazole / triazine hybrid stabilizing agent and a composite antioxidant; the material proportion of the functional filler is about 18-22%, and the functional filler comprises silane coupling agent modified nano kaolin, titanate treated calcium carbonate and graphene modified glass beads; and the material proportion of the special auxiliary agent is about 3-5%, and the special auxiliary agent comprises a hyperbranched polyester plasticizer, a phosphorus-nitrogen intumescent flame retardant and a fluorine surfactant. Compared with the prior art, the invention has the advantages of strong weatherability, high tensile strength and fracture resistance.

The invention discloses a multi-layer composite polypropylene color master batch and a preparation method thereof.The multi-layer composite polypropylene color master batch comprises an inner layer, a middle layer and an outer layer, the inner layer is coated with the middle layer, the middle layer is coated with the outer layer, matrix resin, a composite toughening agent and an interface modifier are subjected to melt blending in a double-screw extruder, nano reinforcing filler is added, extrusion granulation is performed, and the multi-layer composite polypropylene color master batch is obtained. Carrier resin, hyperbranched polyesteramide and a toner pre-dispersion body are mixed at a high speed and then uniformly coated on the outer surface of the inner layer through fluidized bed equipment, and a mixture of a weather-proof additive and a lubricant is attached to the outer surface of the middle layer by adopting an electrostatic spraying process to form the outer layer. According to the multi-layer composite color master batch, the matrix resin and the composite toughening agent have a synergistic effect, so that the impact strength of the color master batch is improved, the cavity structure of hyperbranched polyesteramide is coated with the toner, the silane is used for treating the nano filler to reduce agglomeration and chromatic aberration, the outer layer delays aging, the lubricant reduces the extrusion torque, and the multi-layer composite color master batch is adaptive to a high-speed pipe production line.

The invention relates to high-strength corrosion-resistant PA66 and a preparation method and application thereof, and belongs to the technical field of high polymer materials, the high-strength corrosion-resistant PA66 comprises the following raw materials: 55-65 parts of a PA66 base material, 20-25 parts of multifunctional modified glass fibers, 0.5-1.5 parts of an antioxidant, 1-2 parts of a lubricant, 0.1-0.5 part of a coupling agent and 2-4 parts of a flexibilizer; according to the technical scheme, the silane modified glass fiber is obtained by combining the nano material with the glass fiber and then grafting the silane coupling agent; combining the silane modified glass fiber, diamine and fluorinated dianhydride to obtain an anhydride-terminated compound; combining the anhydride-terminated compound with amphiphilic hyperbranched polyester to obtain the multifunctional modified glass fiber; mixing the PA66 base material, the multifunctional modified glass fiber, an antioxidant, a lubricant, a coupling agent and a flexibilizer, and performing extrusion granulation to obtain the high-strength corrosion-resistant PA66. The corrosion resistance, the thermal stability and the mechanical property of the PA66 are integrally improved.

The invention relates to the technical field of modified polypropylene composite materials, in particular to a polypropylene composite material for thin-wall injection molding and a preparation method thereof.The polypropylene composite material is prepared from 70-85 parts of polypropylene, 1-15 parts of toughened branched resin, 3-5 parts of maleic acid copolymer, 5-10 parts of inorganic filler, 0.1-0.5 part of antioxidant and 0.1-0.5 part of light stabilizer; the toughened branched resin comprises carboxyl-terminated hyperbranched polyester and methoxyl polyethylene glycol, and the mass ratio of the carboxyl-terminated hyperbranched polyester to the methoxyl polyethylene glycol is 1: (2-4). According to the invention, impact energy is dispersed by toughening a branched structure in the branched resin, the energy absorption capacity is enhanced by an mPEG flexible chain, the impact toughness of the polypropylene composite material is remarkably improved through the synergistic effect of the two, and meanwhile, the tensile strength is maintained. The inorganic filler is matched to enhance the rigidity of the polypropylene composite material, so that the balance of toughness and rigidity is realized.

The invention belongs to the technical field of high polymer material preparation, and provides a low-melting-point toughened copolyester chip and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing hyperbranched polyester of which the surface is rich in carboxyl-terminated functional groups through core growth of polybasic acid alcohol and end group functionalization reaction of anhydride; the other chain extender is a linear chain extender which has a long flexible chain segment and two tail ends of which are also functionalized by carboxyl groups, and is obtained by carrying out end group esterification reaction on polyether glycol; then, in the synthesis process of the main polyester, carrying out multi-stage melt polycondensation on an aromatic dibasic acid component and a polyol component under the action of a composite catalyst system, introducing the hyperbranched polyester and a chain extender into a reaction system in the form of slurry, and covalently bonding a functional additive to a copolyester main chain through a polycondensation process, so as to obtain the hyperbranched polyester. An integrated network reinforced structure is formed, so that the copolyester chip has the characteristics of low melting point and excellent toughness.

Disclosed in the present invention are an acrylic polyurethane finish coat having a high solid content and super weather resistance and a preparation method therefor. The finish coat consists of a component A and a component B, the mass ratio of the component A to the component B being 20:(2-5). The component A comprises the following components in parts by mass: 30-45 parts of acrylic resin, 2-10 parts of a modified resin, 2-10 parts of a hyperbranched polyester polyol, 25-40 parts of a pigment and filler, 0-1.5 parts of a thixotropic agent, 0.1-10 parts of a dispersing agent, 0.1-0.5 part of a defoaming agent, 0.01-1 part of a drier and 1-10 parts of a mixed solvent. The component B comprises the following components in parts by mass: 70-95 parts of an aliphatic isocyanate polymer, 2-15 parts of xylene and 2-15 parts of propylene glycol methyl ether acetate. The coat of the present invention exhibits excellent weather resistance, which is comparable to that of super-weather-resistant finish coats fluorocarbon finish coats and polysiloxane finish coats, and has high mechanical strength and an anti-corrosion property, and is thus particularly suitable for surface coating of steel structures in the environment of South China Sea.

The invention provides a high-weather-resistance powder coating and a preparation method thereof, and belongs to the technical field of powder coatings. According to the invention, a hyperbranched polyester skeleton is constructed through esterification reaction of trimethylolpropane, adipic acid and maleic anhydride, hydroxyl-terminated polyether, pentaerythritol and 2, 4-dihydroxybenzophenone are introduced to adjust flexibility, thermal stability and ultraviolet aging resistance, and allyl glycidyl ether is utilized to improve chemical activity and network stability; phosphorus-containing heterocyclic ring-polynitrogen imide oligomer is generated through substitution reaction and subsequent modification of phosphonitrilic chloride trimer, aniline and ethanolamine, and the coating is endowed with flame retardance, heat resistance and adhesive force. In the preparation of the coating, carboxyl polyester resin and a curing agent are crosslinked to form a three-dimensional network, and filler and auxiliaries such as precipitated barium sulfate, silica powder and bismuth vanadate yellow pigment are combined, so that the mechanical strength, chemical resistance and ultraviolet aging resistance of a coating film are optimized.

The invention relates to the technical field of high polymer materials, and particularly discloses a preparation method and application of an acrylate PVC impact modifier. The preparation method of the acrylate PVC impact modifier comprises the following steps: firstly, preparing the binding agent and the composite hydroxyl-terminated hyperbranched polyester, and sequentially adding the binding agent and the composite hydroxyl-terminated hyperbranched polyester into the preparation process of the core-layer emulsion and the shell-layer structure to obtain the acrylate PVC impact modifier. The preparation method of the acrylate PVC impact modifier prepared by the invention has the advantages of high impact resistance and high toughness.

The invention provides a degradable modified polyester fiber as well as a preparation method and application thereof, and belongs to the field of textile fibers. The degradable modified polyester fiber provided by the invention is prepared from the following components in parts by weight: 80 to 110 parts of PBAT (poly (butylene adipate-co-terephthalate)), 1 to 35 parts of natural plant fiber, 0.1 to 20 parts of hyperbranched polyester grafted carbon nanotube, 0.1 to 20 parts of nano-silver-titanium dioxide compound and 0.1 to 20 parts of plant essential oil microcapsule, the degradable modified polyester fiber is prepared from the components through melt blending and spinning, so that the toughness is enhanced while the mechanical property is improved, the components can be uniformly dispersed, the interfacial compatibility is improved, and the polyester fiber is endowed with antistatic property and antibacterial property. The application of the modified polyester fiber in textiles can solve the problems that waste textiles are difficult to degrade, the textiles are poor in flexibility and comfort and the like.

The invention provides modified epoxy water-based putty suitable for rail transit vehicles and a preparation method of the modified epoxy water-based putty, and belongs to the technical field of putty. The hyperbranched polyester modified epoxy resin is added into the main agent component; acrylonitrile modified aliphatic amine is selected in the curing agent component, and other specific components are matched with one another; based on the matched preparation method, the prepared putty product has the characteristics of strong adhesive force, high strength and high toughness; meanwhile, the coating is long in construction service time, high in curing speed, good in grinding property, suitable for large-area coating and scraping and the like, and particularly capable of meeting the coating use of rail transit vehicles.

The invention discloses a low-residue lithium battery positive electrode tab film adhesive material and a preparation method thereof, and belongs to the technical field of lithium battery auxiliary materials. The preparation method comprises the steps of copolymer synthesis, premixing, filler dispersion, crosslinking system introduction and defoaming, and coating and packaging, the copolymer is prepared by norbornene, hexafluorobutyl acrylate and maleic anhydride free radical copolymerization, and fluorinated hyperbranched polyester is subjected to ester exchange and epoxy ring opening one-step functionalization. Aiming at the problems of high high-temperature residue, weak interface adhesion and poor electrolyte resistance of the existing adhesive, the invention designs that a fluorine-containing copolymer with high thermal stability and high reaction activity is taken as a main body and is matched with a reactive compatibilizer to construct a strong chemical bonding interface, and a hyperbranched stabilizer with double functions of physical binding and chemical chelation is introduced, so that the adhesive is prepared. The tab adhesive film bonding material with ultralow residue, ultrahigh peel strength and excellent electrolyte resistance is successfully prepared, and the long-term reliable sealing requirement of a high-energy-density lithium battery can be met.

The invention belongs to the technical field of coatings, and particularly discloses a high-adhesion acrylic coating and a preparation method thereof.In the presence of dopamine hydrochloride, nano-silica is subjected to microwave radiation to obtain modified nano-silica; then mixing the mixture with an acrylic resin emulsion; adding an isocyanate curing agent, a titanium dioxide pigment, hydroxyl-terminated hyperbranched polyester, a polycarboxylic acid ammonium salt dispersing agent, a polysiloxane defoaming agent and magnesium lithium silicate by adopting a continuous flow process; the paint with good adhesive force, corrosion resistance, impedance and low surface roughness is prepared through segmented curing, and the application prospect is wide.

The present invention discloses a preparation method of a low-resin mica tape by hot pressing. This method uses epoxy resin and hyperbranched polyester resin to prepare a sizing material, dilutes part of the sizing material to obtain a diluted sizing material, uses a silicon chloride-acetone solution to treat a reinforcing fiber fabric and reinforcing fiber filaments respectively to obtain a modified reinforcing fiber fabric and modified reinforcing fiber filaments, then adds silicon chloride to the diluted sizing material to impregnate the modified reinforcing fiber fabric to obtain a reinforcing material layer, and at the same time takes a base sizing material and adds modified reinforcing fiber filaments to obtain an adhesive; the adhesive is coated on one or both sides of a mica paper substrate to obtain an adhesive layer, the reinforcing material layer is laid flat on the surface of the adhesive layer, and after two roller pressings, it is dried, slit, and wound up to obtain a finished low-resin mica tape. The mica tape prepared by the method of the present invention has a low resin content and has better VPI process performance.

The invention discloses a polypropylene composition as well as a preparation method and application thereof. The polypropylene composition is prepared from the following components in percentage by mass: 72 to 88 percent of flame-retardant polypropylene particles and 12 to 28 percent of long glass fiber master batch, the flame-retardant polypropylene particles comprise the following components in parts by weight: 30-60 parts of polypropylene resin; 15 to 25 parts of piperazine salt; 5 to 15 parts of melamine salt; 0.3 to 2 parts of a flame retardant synergist; 3-6 parts of finished ceramic filler; 1-4 parts of a fluxing agent; 2-6 parts of a flow modifier; 0.5 to 1 part of hyperbranched polyester; the melt flow rate of the polypropylene resin under the conditions of 230 DEG C and 2.16 kg is not less than 50g / 10min. The melt flow rate of the polypropylene resin is adjusted, and the flow modifier and the hyperbranched polyester are added, so that the ablation resistance and the precipitation resistance of the composition can be effectively improved.

The invention discloses a nylon composite material as well as a preparation method and application thereof, and belongs to the technical field of modified polymer composite materials. The nylon composite material comprises the following components in percentage by weight: 51%-61% of PA66 resin; 25%-30% of a halogen-free flame retardant glass fiber; 10%-18% of a flame retardant; 0.3%-0.6% of an antioxidant; 0.3%-0.6% of an efficient flow modifier; wherein the efficient flow modifier is selected from high molecular weight hyperbranched polyester containing aromatic groups. Through the combined action of the halogen-free flame-retardant glass fiber and the efficient flow modifier, the nylon composite material is excellent in mechanical property and flame retardant property, good in apparent quality, low in flame retardant content and low in cost, and the preparation method of the nylon composite material is simple, high in operability, wide in applicability and suitable for industrial production. The preparation process is halogen-free and more environment-friendly.

The invention relates to the technical field of western-style clothes processing, in particular to an anti-wrinkle western-style clothes fabric and a processing technology thereof.The anti-wrinkle western-style clothes fabric is prepared by finishing base cloth through finishing liquid, the base cloth is wool blended fabric, and the wool blended fabric comprises wool, polyester fibers, lyocell fibers, spandex and conductive fibers; the finishing liquid is prepared from the following raw materials in parts by weight: 1 to 4 parts of polyoxyethylene sorbitan monooleate, 0.1 to 1 part of cocamidopropyl betaine, 2 to 6 parts of a fiber protecting agent, 80 to 120 parts of carboxyl-terminated hyperbranched polyester, 40 to 60 parts of butanetetracarboxylic acid, 30 to 50 parts of poloxamer, 0.1 to 2 parts of a silane coupling agent, 2 to 4 parts of an aziridine cross-linking agent and 900 to 1100 parts of water; the fabric has the advantage that the crease resistance of the business suit fabric is improved.

The invention relates to the technical field of cable materials, and particularly discloses a low-smoke halogen-free flame-retardant cable material and a preparation method thereof. The low-smoke halogen-free flame-retardant cable material is prepared from 100 parts of polyolefin blended resin, 10 to 20 parts of polyphenyl ether, 3 to 8 parts of glycidyl methacrylate grafted POE, 1 to 3 parts of hyperbranched polyesteramide, 50 to 80 parts of a flame retardant, 5 to 15 parts of silicone powder, 0.5 to 1.5 parts of an antioxidant and 0.05 to 0.2 part of an organic zirconium compound. The preparation method comprises the following steps: uniformly mixing the raw materials to obtain a mixture; and adding the mixture into a twin-screw extruder, carrying out melt extrusion by the twin-screw extruder, cooling, granulating, and drying to obtain the low-smoke halogen-free flame-retardant cable material. The mechanical property and temperature resistance of the low-smoke halogen-free flame-retardant cable material can be improved.

The invention discloses high-strength plastic particles as well as a preparation method and application thereof, and belongs to the technical field of high polymer material modification. The plastic particle is prepared from high-density polyethylene, hyperbranched polyesteramine containing a diurea group, a layered double metal hydroxide-polypyrrole nano hybrid, a maleic anhydride grafted ethylene-octylene copolymer, an antioxidant and calcium stearate. Wherein the hyperbranched polyesteramine containing the diurea group is prepared by reacting pentaerythritol with citric acid to generate a citrate framework and then reacting with diphenylmethane diisocyanate and 1, 4-butanediol; the layered double hydroxide-polypyrrole nano hybrid is prepared by carrying out in-situ polymerization and coating on magnesium-aluminum layered double hydroxides through a pyrrole monomer. According to the plastic particle, the tensile strength, the heat resistance and the flame retardance are remarkably improved through synergistic enhancement of the hyperbranched polyesteramine and the nano hybrid, and the plastic particle can be applied to the fields of automobile bumpers, high-voltage cable sheaths, weather-proof plates for buildings and the like.