492 results about "Carvacryl acetate" patented technology

The invention discloses a cable insulating material which comprises the following components in parts by weight: 40-60 parts of low-density polyethylene, 20-30 parts of an ethylene-vinyl acetate copolymer EVA, 2-5 parts of a composite anti-aging agent, 5-10 parts of a core-shell structure nano composite modifier, 1-2 parts of a lubricant, 3-8 parts of a compatilizer, 20-30 parts of a composite flame retardant, 5-10 parts of a nano reinforcing agent and 2-4 parts of phenylsilane. The core-shell structure modifier strengthens interface bonding, and cooperates with the modified nano reinforcing agent to disperse stress, so that the mechanics and high and low temperature resistance are improved; the composite anti-aging agent inhibits multi-path aging and improves the aging resistance. The material has the advantages of excellent mechanical properties, high and low temperature resistance and outstanding aging resistance, and meets the insulation quality and efficiency requirements of cables in complex use environments.

The invention relates to the field of drag chain cables, in particular to a high-flexibility shielding type drag chain cable and a preparation method thereof. The drag chain cable sequentially comprises a conductor layer, a shielding layer and a sheath layer from inside to outside. The conductor layer is formed by compositely twisting silver-plated copper wires and carbon fibers; the shielding layer comprises an inner shielding layer and an outer shielding layer, the inner shielding layer is wrapped by an aluminum-plastic composite belt, and the outer shielding layer is a tinned copper wire woven mesh. The sheath layer comprises the following components: a modified polyurethane elastomer, an ethylene-vinyl acetate copolymer, nitrile rubber, a composite flame retardant, a plasticizer, an antioxidant, a light stabilizer and a lubricant. Through the structural design of the conductor layer, the shielding layer and the sheath layer and the optimization of the material formula of the sheath layer, the problems that an existing drag chain cable is insufficient in strength and flexibility, limited in shielding effectiveness, poor in wear resistance and weather resistance and difficult to consider both flame retardance and mechanical property are solved.

The invention discloses a cable with a co-extrusion self-foaming ceramic fireproof layer and a preparation method of the cable, and belongs to the technical field of polyolefin cables. The cable comprises a conductor, an insulating layer and a fireproof layer from inside to outside, comprising the following raw materials: 40-60 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a polyolefin elastomer, 20-30 parts of a ceramic precursor filler, 5-10 parts of a compatilizer, 5-10 parts of a cosolvent, 3-5 parts of a flexibilizer, 2-4 parts of a main foaming agent, 1-2 parts of an auxiliary foaming agent, 1-3 parts of a lubricant and 0.5-1.5 parts of an antioxidant. The compatilizer is siloxane containing sulfydryl and phosphaphenanthrene groups, and the flexibilizer is silane coupling agent modified quartz fibers containing double bonds. In a matrix of the ethylene-vinyl acetate copolymer and the polyolefin elastomer, the compatilizer and the flexibilizer are added, so that the fireproof layer is endowed with better impact resistance and flame retardance.

The invention provides a functional composite suspended biological carrier and a preparation and application method thereof. The functional composite suspended biological carrier comprises a main base material and functional components, the main body base material is polyethylene or polypropylene, and the functional component comprises the following substances in parts by mass: 3.0 parts of polyquaternium-10 or cationic polyacrylamide, 1.5 parts of molybdenum disulfide, 2.5 parts of vinyl acetate or acrylate, 2.0 parts of nano silicon dioxide, 2-3 parts of talcum powder, 0.5 part of a silane coupling agent and 0.5 part of polyethylene wax; the total proportion of inorganic components in the carrier is less than or equal to 12%; the cross section of the carrier is a 19-hole honeycomb hollow cylinder, the diameter of the formed cylinder is 25 mm, the height of the formed cylinder is 10 mm, and the density of the carrier is 0.95-1.00 g / cm; according to the invention, the state of charge on the surface of the carrier is adjusted through the positive electricity polymer PQAS-10, the affinity with negatively charged microorganisms is enhanced, the biofilm culturing period is obviously shortened, and by introducing molybdenum disulfide and a composite conductive structure thereof, a surface micro-conductive network is established, and the microbial metabolism efficiency under aerobic and facultative conditions is improved.

The invention provides a high-shielding-property flame-retardant fire-resistant control cable and a preparation method thereof. The cable sequentially comprises a conductor core wire, a fire-resistant insulating layer, a composite shielding layer and a flame-retardant fire-resistant sheath layer from inside to outside, the invention discloses a preparation method of a traditional Chinese medicine. The flame-retardant fireproof sheath layer is prepared from the following raw materials: 35 to 45 parts of low-smoke halogen-free flame-retardant polyolefin, 15 to 20 parts of ethylene-vinyl acetate copolymer, 8 to 12 parts of polyolefin elastomer, 6 to 10 parts of magnetic montmorillonite-based hybrid electromagnetic shielding filler, 7 to 11 parts of core-shell type ceramic flame-retardant microcapsule, 1.0 to 1.5 parts of silane coupling agent, 2 to 4 parts of basalt fiber and 0.4 to 0.7 part of cross-linking agent. 0.6 to 1.0 part of lubricant, 0.7 to 1.1 parts of stabilizer and 0.3 to 0.6 part of antioxidant. The high-shielding flame-retardant fire-resistant control cable provided by the invention has excellent electromagnetic shielding, flame-retardant and fire-resistant properties, outstanding mechanical strength, good processing fluidity, effective inhibition of thermal degradation and oxidative degradation in high-temperature processing and use processes, and good heat resistance, dimensional stability and use stability.

This invention relates to a release film for an oxide solid electrolyte membrane, the release film comprising a release substrate layer and an EVA functionalized coating coated on the surface of the release substrate layer, wherein the vinyl acetate content of the EVA functionalized coating is between 10% and 50%. Furthermore, this invention also provides an oxide solid electrolyte membrane comprising a release film, an oxide solid electrolyte membrane body, and a carrier as described above, wherein the oxide solid electrolyte membrane body is located between the release film and the carrier, and the release film is bonded to the oxide solid electrolyte membrane body via the EVA functionalized coating.

A resin composition that contains: (A) a bio-polyethylene resin; (B) an ethylene-vinyl alcohol copolymer having an ethylene content of 20 to 60 mol %; and (C) at least one component selected from the group consisting of an ethylene-vinyl acetate copolymer, an acid-modified ethylene-α-olefin copolymer, an ethylene-unsaturated monocarboxylic acid copolymer, an ionomer of the ethylene-unsaturated monocarboxylic acid copolymer, an ethylene-vinyl alcohol copolymer having an ethylene content of 70 to 90 mol %, and a hydrotalcite compound. The resin composition employs a bio-polyethylene resin and yet can suppress gumming and provide a formed product having an excellent appearance.

The invention relates to the technical field of cables, and provides a fireproof flame-retardant cable and a preparation method thereof. The fireproof flame-retardant cable comprises a conductor, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer is prepared from, by weight, 40-50 parts of high-density polyethylene, 30-40 parts of ethylene-vinyl acetate copolymer, 30-40 parts of flame retardant, 15-20 parts of filler, 8-10 parts of plasticizer, 2-4 parts of lubricant, 2-4 parts of antioxidant, 2-3 parts of stabilizer and 2-3 parts of cross-linking agent; the flame retardant is prepared from the following component raw materials in parts by weight: 30 to 40 parts of magnesium hydroxide, 10 to 15 parts of aluminum hydroxide, 4 to 5 parts of zinc borate, 3 to 4 parts of diethyl phosphoryl ethyl triethoxy silane and 1 to 1.5 parts of 2-(2-pyridyl) ethyl trimethoxy silane. According to the technical scheme, the problem of insufficient fireproof and flame-retardant performance of the cable in the prior art is solved.

The invention provides a high-performance polypropylene plastic bucket material and a preparation method thereof, and belongs to the field of high-performance polypropylene plastic. The high-performance polypropylene plastic bucket material is prepared from the following raw materials in parts by weight: 100 parts of polypropylene resin, 8 to 15 parts of hydrogenated styrene-butadiene-styrene block copolymer, 3 to 8 parts of modified nano silicon dioxide, 2 to 5 parts of epoxy functionalized polypropylene, 3 to 10 parts of ethylene-vinyl acetate copolymer, 0.2 to 0.5 part of beta crystal form nucleating agent and 1.5 to 4 parts of hyperbranched dynamic cross-linking agent, the composition comprises the following components in parts by weight: 1-4 parts of maleic anhydride grafted polypropylene, 0.3-0.6 part of an antioxidant, 0.2-0.4 part of a hindered amine light stabilizer and 0.1-0.3 part of an ultraviolet light absorber. By constructing a multi-component and multi-network synergistically enhanced polypropylene composite material system, the problem that rigidity, toughness, long-term stability and weather resistance are difficult to consider at the same time is essentially and synergistically solved.

The invention provides an EVA (Ethylene Vinyl Acetate) packaging adhesive film as well as a preparation method and application thereof. The EVA packaging adhesive film is prepared from the following raw materials in parts by mass: 90 to 110 parts of an ethylene-vinyl acetate copolymer, 0.1 to 1.5 parts of an initiator, 0.1 to 2 parts of an assistant crosslinker and 0.1 to 2 parts of a porous organic material. Through the design of the porous organic material and the compounding of the porous organic material and other components, the EVA packaging adhesive film has excellent corrosion resistance and PID resistance, good weather resistance, relatively high crosslinking density, high stripping force, high light transmittance, high volume resistivity, good damp-heat aging resistance and reliability, excellent comprehensive performance and good application prospect. And the application requirement of a high-performance photovoltaic module can be met.

The invention discloses a recycled PP composite material with flame-retardant and antibacterial properties and a preparation method thereof, and relates to the technical field of recycled PP composite materials. The recycled PP composite material with flame-retardant and antibacterial properties is prepared from the following raw materials in parts by weight: 60 to 75 parts of recycled PP, 15 to 25 parts of modified magnesium hydroxide, 3 to 8 parts of modified chitosan, 2 to 5 parts of ethylene-vinyl acetate copolymer, 0.5 to 1.5 parts of silane coupling agent KH-550, 8 to 15 parts of ammonium polyphosphate, 0.3 to 0.8 part of calcium stearate, 1 to 3 parts of nano titanium dioxide and 0.2 to 0.6 part of tributyl citrate. The recycled PP composite material has the remarkable advantages that the recycled PP is used as a base material, so that the environment is protected and the cost is low; through compounding of modified magnesium hydroxide, modified chitosan and the like, the flame-retardant antibacterial coating has excellent flame-retardant and antibacterial properties; the preparation process is clear and controllable, the raw material compatibility is scientific, the compatibility of the components is good, the product performance is stable, and the application prospect is wide.

The application belongs to the technical field of drug dissolution and dispersion, and particularly relates to a bunazosin water-based solution preparation and a preparation method. The bunazosin water-based solution preparation provided by the application comprises the following components: bunazosin, gamma-cyclodextrin, lecithin, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, aspartame and water. The above components are mixed to be homogeneous to prepare an oral solution which is uniform, clear and can be stored for a long time. The scheme of the application further enriches the dosage form of bunazosin, improves the convenience of taking bunazosin, and is expected to help improve the oral bioavailability and absorption efficiency of bunazosin. The scheme of the application also provides a reference direction for the mechanism research on the dissolution and dispersion behavior of the insoluble bunazosin macromolecule in a water medium.

The present invention provides a solid dispersion of compound 1 or a pharmaceutical salt thereof, comprising the compound 1 or the pharmaceutical salt thereof as an active ingredient and a carrier material, wherein the carrier material is selected from one, two, or more of polyvinylpyrrolidone (PVP), copovidone, polyvinylpyrrolidone-vinyl acetate copolymer, hydroxypropyl methylcellulose acetate succinate, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, hydroxypropyl methylcellulose, polyethylene glycol, and ethyl cellulose, enabling the drug to have good stability, dissolution, and therapeutic effects. The formulation of the present invention provides rapid drug release and can reduce the oral burden of large-dose tablets on menopausal patients, thereby improving treatment compliance and treatment efficiency.

The invention provides a cable material as well as a preparation method and application thereof, and the cable material comprises the following components in parts by weight: 25-45 parts of polypropylene resin, 25-45 parts of elastomer, 80-100 parts of flame retardant, 1-3 parts of antioxidant and 1-2 parts of lubricant. The elastomer comprises any one or a combination of at least two of a styrene-butadiene-styrene block copolymer, an ethylene propylene diene monomer or an ethylene-vinyl acetate copolymer. The polypropylene resin and the elastomer are blended, so that the mechanical strength, the environmental adaptability and the aging resistance of the cable material are comprehensively improved while excellent electrical insulation performance of the cable material is maintained; the halogen-free flame retardant is added, so that the release of smoke and toxic gas is reduced, and an efficient and environment-friendly flame-retardant effect is realized.

This invention provides a method and system for producing vinyl acetate. [Solution] A method and system for producing vinyl acetate can use a combustion limit (FL) formula with improved efficiency at one or more locations in the vinyl acetate production process. In this invention, FL can be used in one or more of the four parts of the vinyl acetate production process: the reactor, the inter-process heat exchanger, the carbon dioxide removal system, and the ethylene recovery system. Such FL is a function of the operating state and includes at least one interaction term that represents the interrelationship of two or more operating states (e.g., temperature, pressure, and component concentration) with respect to FL.

This invention discloses a method for preparing a three-dimensional integrated lumbar support cushion. The raw materials of the lumbar support cushion include: ethylene-vinyl acetate copolymer, polyether-type thermoplastic polyurethane elastomer, physically foamed microspheres, azodicarbonamide, caprolactam-blocked 4,4'-diphenylmethane diisocyanate, surface-modified copper nanowires, and silver-loaded silicone composite components. The preparation process is as follows: the matrix resin and modified copper nanowires are melt-blended at high temperature, and then mixed with the foaming system, crosslinking agent, and composite components at low temperature to obtain a blended base material; the blended base material is injection molded, followed by static differential temperature field for pressure holding and curing, and finally cooled and demolded. This invention utilizes copper nanowires to construct a thermally conductive network, which, combined with the external temperature difference, forms a continuous foaming ratio and crosslinking density gradient inside, eliminating the physical phase interface of traditional multi-material splicing, significantly improving the tear resistance and fatigue life of the transition zone; and utilizes cooling phase separation to form an anti-slip and antibacterial skin layer.

Multilayer surface protection films and methods for making and using such films are provided. The surface protection films have first and second thermoplastic polyurethane (TPU) layers and an intermediate ethylene vinyl acetate (EVA) layer disposed between the first and second TPU layers. The use of the first and second TPU layers as outer layers contributes to the optical clarity of the film. These TPU layers may have different thicknesses. The use of EVA as a component of the film layers provides a film with lower cost compared to traditional single-layer TPU films. When used as a surface coating for a wide range of applications, such as automobiles, wind turbine blades, home appliances, electronic displays, and mobile devices, the EVA component properties and the total EVA ratio of the film can be used to improve the physical properties of the multilayer structure while maintaining comparable or superior performance to these films.

The invention discloses a preparation method and application of a high-flux, high-interception and structure-controllable asymmetric ultrafiltration membrane, and belongs to the technical field of ultrafiltration membranes. The preparation method of the asymmetric ultrafiltration membrane comprises the following steps: mixing 20-30 parts by weight of an ethylene-vinyl acetate copolymer, 40-70 parts by weight of a good solvent, 4-20 parts by weight of a pore-foaming agent, 10-25 parts by weight of a cosolvent and 0-10 parts by weight of a plasticizer, heating and stirring, standing and defoaming to obtain a homogeneous membrane casting solution; coating a substrate with the membrane casting solution and then carrying out pre-evaporation treatment; and immersing the pre-evaporated material into a coagulating bath to carry out phase separation and solvent exchange for curing, and washing to obtain the ultrafiltration membrane. Effective preparation of the asymmetric ultrafiltration membrane with high flux, high interception and controllable structure is realized, and the preparation method is simple to operate, clear in process, high in practicability and beneficial to product industrialization.

This invention relates to the field of photovoltaic encapsulation materials technology, specifically providing a rare-earth upconversion light-trapping photovoltaic film, its preparation method, and a photovoltaic module, aiming to solve the problems of existing technologies being unable to simultaneously address interface reflection loss and low UCNP utilization. To this end, the rare-earth upconversion light-trapping photovoltaic film of this invention includes a surface layer, an intermediate layer, and an inner layer; the surface layer comprises an ethylene-vinyl acetate copolymer (EVA) matrix and upconversion nanomaterials UCNPs dispersed therein; the intermediate layer is a polyolefin elastomer (POE) matrix; the inner layer comprises an ethylene-vinyl acetate copolymer (EVA) matrix and spherical diffusing agents dispersed therein; wherein the refractive indices of the surface layer, intermediate layer, and inner layer satisfy the following condition: the refractive index of the surface layer ≤ the refractive index of the intermediate layer < the refractive index of the inner layer. The rare-earth upconversion light-trapping photovoltaic film of this invention can simultaneously solve the problems of interface reflection loss and low UCNP utilization.

The application discloses a kind of corrosion-resistant double-armored submarine cable and preparation method thereof, it is related to submarine cable technical field.The corrosion-resistant double-armored submarine cable includes outer sheath layer, water barrier layer, double-armored layer, insulating inner liner, filling layer, insulating layer, copper conductor in turn from surface to inside;The outer sheath layer is obtained by extruding coating on the surface of double-armored layer by corrosion-resistant submarine cable material;The corrosion-resistant submarine cable material includes the following raw material components: by mass parts, 75-90 parts of high-density polyethylene, 30-50 parts of ultra-high molecular weight polyethylene, 10-25 parts of modified microfiber, 8-15 parts of ethylene-vinyl acetate copolymer, 0.2-0.5 parts of antioxidant, 1-1.2 parts of lubricant.The application optimizes sheath layer material, solves the problems of existing double-armored submarine cable corrosion failure, short service life, unstable performance and other problems, meets the demand of long-term service reliability.

The invention relates to the technical field of functional materials, in particular to a sound-absorbing metal plate and a preparation method and application thereof. According to the sound-absorbing metal plate provided by the invention, the metal panel, the functional inner core and the back plate are adopted, and the core is that the sound-absorbing structure of the functional inner core is utilized, so that the noise reduction coefficient is more than 0.95. Specifically, according to the sound-absorbing metal plate provided by the invention, ethylene-vinyl acetate and polyethylene glycol terephthalate are adopted as basic resin, and the pore structure of the functional inner core is controlled by utilizing the synergistic effect of the foaming agent and the cross-linking agent, so that the pore structure is more beneficial to efficient absorption and reduction of sound reflection. According to the sound-absorbing metal plate, the functional inner core is further arranged between the metal face plate and the back plate, the sound-absorbing function and the structural stability of the functional inner core are further enhanced, and the sound-absorbing metal plate provided by the invention achieves the optimal performance. The sound-absorbing metal plate provided by the invention has the advantages of favorable flame retardancy, favorable safety, decoration and beautification functions and favorable overall effect.

The utility model discloses a water soluble paraffin removal ball, which relates to the technical field of paraffin removal balls and comprises a paraffin removal ball body, a cleaning agent storage component is mounted in the paraffin removal ball body and comprises a storage tank, a through hole, a chemical cleaning agent and a water soluble plastic film, the paraffin removal ball comprises a paraffin removal ball body, a storage groove is formed in the paraffin removal ball body, the storage groove is filled with a chemical cleaning agent, a plurality of through holes are formed in the outer side of the paraffin removal ball body and penetrate through the inner wall of the storage groove, and a water-soluble plastic film is installed on the inner side of one end of each through hole. The synthetic material of the paraffin removal ball body is ethylene vinyl acetate, and the paraffin removal ball body can be dissolved in a crude oil environment, so that the paraffin removal ball body can be automatically dissolved in an oil pipe after being used for 24 hours, the oil pipe is prevented from being blocked, the paraffin removal ball does not need to be found, and the paraffin removal ball is more convenient to use.

This invention provides an equivalent substitute, its preparation method, and its application for testing the mechanical properties of RDX-based non-aluminum-containing press-loaded explosives under temperature load. The equivalent substitute is prepared by replacing the energetic material RDX in the RDX-based non-aluminum-containing press-loaded explosive formulation with the non-energetic material ammonium sulfate. The equivalent substitute is used to replace the actual explosive for testing its mechanical properties under temperature load. The equivalent substitute, by mass percentage, comprises the following raw material components: 95.5%–96.5% ammonium sulfate, 2%–3% polyvinyl acetate, and 0.5%–1.5% stearic acid, with the total mass percentage of the above components being 100%. The mechanical properties of the molded explosive charge made with the equivalent substitute provided by this invention, such as compressive strength and tensile strength (compressive strength of 2.9-27.3 MPa and tensile strength of 1.1-5.9 MPa at -55 to 70°C), are basically consistent with those of real explosives under different temperature loads. This can truly reflect the changes in the mechanical properties of the actual explosive charge during environmental and aging tests, and can provide data support for the mechanical failure assessment of explosives.

The invention relates to the technical field of high-voltage cables, in particular to a crosslinked polyethylene insulated high-voltage direct-current cable, which is characterized in that an insulating layer contains a crosslinked polyethylene base material, a composite modifier, an antioxidant compound system, a nano nucleating agent, a tracking-resistant agent, a compatilizer and a smoke suppressant, the composite modifier is prepared by compounding an ethylene-vinyl acetate copolymer and a methyl methacrylate-butadiene-styrene copolymer, the antioxidant is prepared by compounding hindered phenol and phosphite ester, the nano nucleating agent is prepared from silane coupling agent KH-550 modified talcum powder and calcium carbonate, the tracking-resistant agent is prepared from melamine cyanurate and stearic acid activated magnesium hydroxide, and the lubricant is prepared from a lubricant and a lubricant. The compatilizer is maleic anhydride grafted polyethylene, and the smoke suppressant is compounded by ammonium molybdate and tin oxide. The components synergistically improve the flexibility, aging resistance and dielectric property of the insulating layer, the tracking resistance and smoke suppression are balanced, and the preparation process solves the problem of additive agglomeration, accurately controls the crosslinking degree, reduces the internal stress and improves the performance uniformity.

To provide a protective tape with high peel strength and / or low surface impedance. [Solution] The protective tape comprises a base film, an antistatic layer, and an adhesive layer. The antistatic layer is located on the surface of the base film and contains a first resin. The adhesive layer is located on the antistatic layer. Here, the adhesive layer contains a second resin, and the second resin is grafted with 6% to 12% by weight of glycidyl methacrylate and 3% to 5% by weight of vinyl acetate relative to the total weight of the second resin.

The application relates to a fruit and vegetable packaging film based on a MOF material, which comprises the following components: polyvinyl alcohol, modified polylactic acid, Ag@MOF nanoparticles, plant extract, glycerol, and a solvent; wherein the modified polylactic acid is obtained by reaction of acrylamide, double-bond polylactic acid, vinyl acetate and KH570 modified nano-silver particles. Through the synergistic effect of the modified polylactic acid and components such as polyvinyl alcohol, Ag@MOF nanoparticles and plant extract, the mechanical properties, compatibility, antibacterial property, barrier property and preservation performance of the packaging film are significantly improved, the degradability of the material is ensured, and the application has important significance for promoting the development of the fruit and vegetable preservation packaging industry.

This invention relates to a method for preparing lightweight building materials with high carbon sequestration and high strength, comprising the following steps: preparation and activation of biochar; mixing biochar with solid waste raw materials to obtain a mixture; preparing biochar-modified lightweight aggregate in a granulator; curing the obtained lightweight aggregate according to a process of pre-curing – carbonization curing – subsequent wet curing; and drying to obtain lightweight building materials. This invention uses activated biochar as a modifying material, uses fly ash, coal gangue, desulfurized gypsum, and other multi-element solid wastes instead of cement as raw materials, uses blast furnace slag instead of traditional silicone, vinyl acetate (VAM) emulsion, polyurethane, etc., as binders, and uses CO2 from flue gas emitted from steelmaking furnaces, cement kilns, and coal-fired power plants for carbonization curing. This achieves optimized control of the internal pore structure of the lightweight aggregate and accelerates the carbonization reaction rate between CO2 and the internal and external aggregate media, effectively improving the overall carbonization degree and CO2 adsorption performance of the lightweight aggregate.

This invention discloses a flame-retardant rubber and its preparation method. The flame-retardant rubber, by weight, comprises: 45-65 parts of ethylene-vinyl acetate copolymer; 12-20 parts of ethylene propylene diene monomer (EPDM) rubber; 3-6 parts of maleic anhydride-grafted ethylene-vinyl acetate copolymer; 8-12 parts of phosphorus-modified nanocellulose; 2-5 parts of submicron zinc borate; 2-4 parts of melamine polyphosphate; 0.5-2.5 parts of graphene; 1-2.5 parts of phosphorus-containing flame-retardant plasticizer; and 1-4 parts of multifunctional acrylate crosslinking agent. This application replaces traditional melamine with melamine polyphosphate (MPP). MPP has higher thermal stability, its decomposition temperature matches the char formation window of P-NC more closely, and it has its own phosphorus source, enabling a complementary and continuous phosphoric acid supply with P-NC on both the time and temperature axes, thus solving the problem of insufficient phosphorus catalysis after reducing the amount of P-NC alone.

The application belongs to the technical field of precision casting, and particularly relates to a high-viscosity and high-strength precision casting adhesive wax and a preparation method thereof. The adhesive wax comprises the following components: 30-40 parts of paraffin wax, 16-24 parts of microcrystalline wax, 25-30 parts of petroleum resin, 8-14 parts of rosin resin, 5-10 parts of EVA, 2-5 parts of LDPE and 0.1-2 parts of additives; wherein the LDPE is composed of two kinds of LDPE with different melt indexes. By introducing the petroleum resin, rosin resin, ethylene-vinyl acetate copolymer (EVA) and low-density polyethylene (LDPE) into the paraffin wax and microcrystalline wax base system, and controlling the proportion between the resin system and the polyolefin reinforcing system, the adhesive wax has high viscosity and hardness at 100 DEG C, and the bending strength is improved. Thus, the comprehensive performance of the adhesive wax is achieved, i.e., the adhesive wax is not easy to sag at high temperature, is not easy to be pressed at room temperature, and is not easy to crack under stress.