30results about How to "Improve charcoal ability" patented technology

The present invention relates to a graphene-modified multifunctional polyester fiber and a preparation method and an application in down filling, belonging to the technical field of down filling. The preparation method of the present invention comprises the following steps: S1, under the action of an acid binding agent, trimethylolethane and phosphorus oxychloride are reacted in a solvent in the first stage, and then graphene oxide is added for the second stage reaction to obtain modified graphene oxide; S2, the modified graphene oxide and polyester powder are granulated to obtain a multifunctional polyester masterbatch; S3, the multifunctional polyester masterbatch and polyester slices are spun to obtain a graphene-modified multifunctional polyester fiber. The far-infrared normal emissivity of the graphene-modified multifunctional polyester fiber is 0.89-0.92, the far-infrared radiation temperature rise is 2.3℃-3.1℃, the limiting oxygen index reaches 28.3%-29.0%, the antibacterial performance is higher than 99.9%, and the breaking strength is 3.2cN / detx-3.4cN / detx.

The invention relates to the technical field of composite fabrics, and discloses a preparation method of an antibacterial flame-retardant composite superfine fiber fabric, nylon 6 and low-density polyethylene are subjected to spinning, stretching and heat setting to obtain a fabric base layer, tris (2-chloroethyl) phosphate, p-dimethylaminobenzaldehyde and the like are used as raw materials, and the antibacterial flame-retardant composite superfine fiber fabric is prepared. Performing quaternization and amination reaction to obtain an antibacterial flame-retardant chain extender, and participating in synthesis of polyurethane to obtain a functional layer; the materials of all the layers are flatly laid according to the structure of the fabric base layer, the adhesive layer, the barrier layer, the adhesive layer and the functional layer, and the antibacterial flame-retardant composite superfine fiber fabric is obtained after hot-pressing compounding. The phosphorus and nitrogen elements and the Schiff base in the structure can block the exchange between the fiber matrix and oxygen and heat in the air, so that the flame-retardant effect is achieved; the quaternary ammonium salt cations interfere with metabolism of bacteria through electrostatic interaction, so that the bacteria die due to a'bacterial solution 'phenomenon, and an antibacterial effect is achieved.

The invention belongs to the field of high polymer materials, and discloses a surface flame-retardant compatibilization glass fiber reinforced PPE / PS alloy material and a preparation method thereof, the alloy material comprises the following raw materials by weight: 10-84.98% of bulk flame-retardant MPPE resin; 5-35% of polystyrene resin; 10 to 40% of flame-retardant glass fiber; 0.01 to 10% of a flame retardant; 0.01 to 2% of a synergistic flame retardant; and 0-3% of other auxiliary agents. The prepared PPE / PS alloy material has excellent mechanical properties, processability and flame retardance, and can be used in the fields of household appliances, electric appliances, automobiles, optical fiber parts and the like.

The invention relates to the technical field of water-based paint, and discloses water-based paint containing modified polyurethane and a preparation method thereof.The modified polyurethane, silicon-containing benzoxazine, water-based acrylic resin, a polyether modified organic silicon defoaming agent, a propylene glycol film-forming agent and water are added into a stirrer and stirred, and the water-based paint containing the modified polyurethane is obtained after stirring is finished. The benzoxazine structure in the silicon-containing benzoxazine can form a heat-resistant phenolic resin structure at a high temperature, so that the water-based paint shows higher thermal decomposition temperature, and the benzoxazine structure is good in heat resistance and high in char forming property and has a better flame-retardant effect; wherein the fluorine element is introduced into the water-based paint, so that a smooth fluorine carbonization layer which is not easy to attach with an object can be formed on the surface of the water-based paint, and therefore, the water-based paint has a relatively good self-cleaning effect; the silicon element can absorb a large amount of heat when being heated, the temperature of the material is reduced, the combustion speed is slowed down, and the flame-retardant effect is achieved.

The invention belongs to the technical field of polymer composite materials, and relates to an ionic liquid modified magnesium hydroxide flame-retardant master batch for rotational moulding and a preparation method thereof, the flame-retardant master batch comprises the following components by mass percentage: 10.0%-40.0% of polyethylene, 3.0%-10.0% of polyethylene wax, 15.0%-60.0% of functional magnesium hydroxide, 0-50.0% of magnesium hydroxide, 5.0%-10.0% of a flexibilizer, and 3.0%-10.0% of an antioxidant. The preparation method has the advantages that groups with specific functions are introduced to N at two different positions of an imidazole ring, organic and inorganic compounding is realized through the groups, the problem of thermoplasticity of Mg (OH) 2 is solved, and the prepared composite material has the characteristic of low percolation threshold value; the imidazole structure in the ionic liquid has high thermal stability and charring ability, and meanwhile, the silica structure is easy to migrate to the surface of the material during combustion to generate a barrier layer, so that the thermal insulation and flame retardant effects are achieved.

The invention discloses a preparation method and application of a magnesium-aluminum hydroxide composite flame retardant, and relates to the technical field of flame retardancy. The preparation method comprises the following steps: mixing magnesium hydroxide and aluminum hydroxide in proportion, adding the mixture into a modified liquid for pretreatment; dispersing the mixture into DMF, dropping protocatechuic aldehyde into the mixture under stirring, introducing nitrogen, and reacting to obtain Schiff-alkalized magnesium hydroxide / aluminum hydroxide; dispersing the mixture into DMF, adding DOPO under stirring, and reacting to obtain a magnesium hydroxide / aluminum hydroxide composite flame retardant; the composite flame retardant contains three flame retardant elements, namely, N, P, and Si, and generates non-combustible gases such as N2 and NH3 to dilute the gas phase during combustion, and also generates groups such as P-O-P, Si-O-Si, and Si-C, so as to form a high-strength and dense silicon layer and carbon layer on the surface of a polymer, effectively reducing the heat conduction speed, isolating oxygen, and slowing down the escape of combustible gas, thereby reducing the decomposition rate of the resin and slowing down the combustion rate.

The invention discloses a preparation method and application of a bio-based phytate efficient charring agent. Lignin is used as a substrate to be coupled with phytic acid through phosphate esterification, a metal coordination microenvironment is provided through multi-coordination synergistic sites of phytic acid and lignin, the catalytic carbonization effect of the charring agent is regulated and controlled by changing the metal oxidation state, meanwhile, the synergistic charring effect of multiple elements such as P and N is coupled, and the vegetation self-charring mode is catalyzed, so that the vegetation self-charring effect is improved, and the vegetation self-charring effect is improved. The catalytic carbonization effect is obviously improved, and the construction of an efficient carbonization fireproof barrier belt is facilitated.

The invention relates to a graphene oxide modified multifunctional down filler and a preparation method thereof, and belongs to the technical field of functional textiles. The preparation method comprises the following steps: S1, reacting graphene oxide, gallic acid and aminoethyl phosphoric acid in water under the action of laccase to obtain a modified graphene oxide dispersion liquid; s2, immersing down feather into the modified graphene oxide dispersion liquid for modification treatment, and then washing and drying to obtain the graphene oxide modified multifunctional down feather filler. The far infrared emissivity of the graphene oxide modified multifunctional down filler is 0.85-0.89, the far infrared radiation temperature rise is 2.4-2.9 DEG C, the antibacterial performance is higher than 94.3%, and the limit oxygen index is 28.2%-29.3%.

The invention discloses a preparation method of a supported photocatalyst and its application in pharmaceutical wastewater treatment, the polyimide polymer grafted on the surface of modified nano titanium dioxide contains a rigid aromatic imide ring structure, has a strong carbon forming property, and after high temperature calcination, a porous carbon material with a stable structure and carbon skeleton can be formed, and a nitrogen-doped structure such as pyrrole nitrogen and pyridine nitrogen is formed in the porous carbon matrix, tetracycline hydrochloride can be adsorbed by hydrogen bonding and π-π bond interactions, and tetracycline hydrochloride has a high adsorption rate and removal effect. The nano titanium dioxide of the present invention is evenly distributed in the porous carbon carrier, reducing the agglomeration of nano titanium dioxide, the better the dispersibility, the more photocatalytic active sites, the better the degradation performance of tetracycline hydrochloride, and the supported photocatalyst has a dual function of adsorption and photocatalytic degradation on tetracycline hydrochloride, thereby showing an excellent removal rate.

The invention discloses a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composite material and a preparation method thereof. The flame-retardant ABS composite material is prepared from the following components in parts by weight: 80-100 parts of ABS, 18-24 parts of a flame retardant and 0.1-0.5 part of an antioxidant, and the flame retardant is a Ni-MOF / MPP (Methyl Phosphate) / praseodymium oxide compound. The invention also discloses a preparation method of the ABS composite material. According to the Ni-MOF / MPP / praseodymium oxide compound, Ni-MOF serves as a framework, melamine polyphosphate (MPP) and praseodymium oxide are laid on the framework, the praseodymium oxide reacts with polyphosphoric acid decomposed by the MPP, the polyphosphoric acid is inhibited from being decomposed to release P2O5 through generation spectrum phosphate, the charring capacity of a flame-retardant system is improved, and a stable expanded carbon layer is formed. The flame retardant property of the ABS composite material can be obviously improved, so that the ABS composite material can be used in the field of automobile household appliance materials and has an extremely good application prospect.

The invention relates to a graphene oxide modified multifunctional down jacket fabric and a preparation method thereof, and belongs to the technical field of functional fabrics. The preparation method comprises the following steps: S1, under the action of laccase, graphene oxide, tannic acid and 4-phenyl-3-thiosemicarbazide are subjected to a reaction in a solvent, and modified graphene oxide is obtained; s2, grinding the modified graphene oxide, a defoaming agent and an adhesive in water to obtain a modified graphene oxide dispersion liquid; s3, a chinlon fabric is soaked in the modified graphene oxide dispersion liquid for two-time soaking and two-time rolling treatment, then pre-drying and baking are conducted, and the graphene oxide modified multifunctional down jacket fabric is obtained. The far infrared emissivity of the graphene oxide modified multifunctional down jacket fabric is 0.89-0.92, the far infrared radiation temperature rise is 2.9-3.3 DEG C, the antibacterial property is higher than 86.9%, the limit oxygen index is 29.1%-30.6%, the dry rubbing color fastness is level 4 or above, and the wet rubbing color fastness is level 3-4 or above.

Belonging to the technical field of high polymer materials, the invention discloses a thermoplastic EPS foam packaging material, which comprises 20-35 parts of EPS, 20-25 parts of modified organosilicon coating, 0-4 parts of acrylic resin and 2-5 parts of expandable graphite. The modified organic silicon coating is used as a binder for coating EPS, so that the thermal stability and char forming property of the EPS packaging material are effectively improved, the LOI value of a foam sample can be obviously improved, and the packaging material can reach the UL-94 V-0 flame retardant grade; therefore, the thermoplastic EPS foam packaging material provided by the invention solves the technical problem of how to improve the flame retardant property of the EPS foam packaging material.

This invention provides a flame-retardant, high-transmittance, and weather-resistant composite material for LED lampshades and its preparation method. By weight, the raw materials include: 80-95 parts bisphenol A type polycarbonate, 4-10 parts phenyl-containing polysiloxane microspheres, 1-4 parts mesoporous silica phosphorus-loaded microspheres, 0.3-0.8 parts silane coupling agent, 0.3-0.8 parts flame retardant, 2-5 parts organic nano-montmorillonite, 0.2-0.6 parts polycarbodiimide, 0.3-0.8 parts antioxidant, 0.3-0.7 parts light stabilizer, and 0.3-1.0 parts lubricant. The flame-retardant, high-transmittance, and weather-resistant composite material for LED lampshades provided by this invention possesses comprehensive properties of high light transmittance, high toughness, and heat resistance.

The invention discloses a halogen-free flame-retardant polypropylene composite material with high boiling resistance and low smoke generation and a preparation method of the halogen-free flame-retardant polypropylene composite material. The flame-retardant polypropylene composite material comprises polypropylene, and a hydrophobic phosphorus-nitrogen intumescent flame retardant is dispersed in the polypropylene; the hydrophobic phosphorus-nitrogen intumescent flame retardant is a phosphorus-nitrogen intumescent flame retardant of which the surface is coated with a vesicle structure, and the vesicle structure is a self-assembly structure obtained after an alcoholysis reaction of a sulfur-containing silane compound and the phosphorus-nitrogen intumescent flame retardant. The flame retardant with the vesicle structure can keep good water resistance and compatibility with a polypropylene matrix in a high-humidity-heat environment, the precipitation amount of the flame retardant after high-temperature water boiling can be reduced, and the migration and precipitation problems of the flame retardant in the polypropylene matrix are effectively solved. Meanwhile, the vesicle structure can also improve the thermal stability and char forming performance of the flame-retardant polypropylene and improve the barrier effect on heat and combustible gas in the combustion process, and compared with common flame-retardant polypropylene, the total released heat is reduced by 24.0%, and the carbon residue mass is increased by 51.7%.

This invention belongs to the field of flame retardant technology, specifically relating to a surface-modified bromide flame retardant and its preparation method. Using tetrabromobisphenol A glycidyl ether and 2,7-dihydroxynaphthalene as raw materials, a high molecular weight brominated epoxy resin flame retardant is prepared by reaction under the action of benzyltriphenylphosphine bromide catalyst. Subsequently, the high molecular weight brominated epoxy resin flame retardant is modified and grafted with a cyclotriphosphazene modifier to obtain a surface-modified high molecular weight brominated epoxy resin flame retardant. This invention uses tetrabromobisphenol A glycidyl ether and 2,7-dihydroxynaphthalene to synthesize a high molecular weight brominated epoxy resin flame retardant. The introduced naphthalene group can greatly improve the thermal stability of the flame retardant. Simultaneously, the surface grafting modification of the high molecular weight brominated epoxy resin flame retardant with a cyclotriphosphazene modifier introduces cyclotriphosphazene, which has a high char-forming ability. The char layer generated during the flame-retardant process can improve the smoke problem of the brominated epoxy resin flame retardant.

The preparation method comprises the following specific steps: firstly, respectively preparing a polyethyleneimine aqueous solution, a tannic acid aqueous solution and a phytic acid aqueous solution by using deionized water, then sequentially immersing the cotton fabric into the polyethyleneimine aqueous solution, the tannic acid aqueous solution, the polyethyleneimine aqueous solution and the phytic acid aqueous solution, finally immersing the cotton fabric into a metal salt solution, and carrying out vacuum drying to obtain the flame-retardant cotton fabric based on biomass. Washing and drying to obtain the flame-retardant cotton fabric. Compared with the prior art, the flame-retardant cotton fabric prepared on the basis of biomass has the advantages that raw materials are easy to obtain, the price is low, the process is simple and convenient, and formaldehyde is avoided, insoluble organic phosphonate is loaded on the surface of the cotton fabric through strong interaction among multiple layers of electrolytes and ion complexing, and the flame retardance and washing resistance of the cotton fabric are effectively improved; sustainable development is facilitated, and the method has important practical significance and wide market prospects.

The present invention relates to the technical field of acrylic resins, and discloses a preparation method of a high-hardness cross-linked modified hydroxy acrylic resin; comprising 100 parts by weight of hydroxy acrylic resin, 1-10 parts by weight of hydroxy aramid fiber, 0.3-0.6 parts by weight of defoamer, 0.3-0.5 parts of wetting and leveling agent, and 2-8 parts by weight of isocyanate trimer. During the curing process, the diisocyanate trimer cross-linking agent reacts with the hydroxyl group of the aramid fiber and the hydroxyl group of the acrylic resin, so that the aramid fiber and the acrylic resin undergo a chemical cross-linking reaction, the interface performance and compatibility between the aramid fiber and the hydroxy acrylic resin are improved, the wear mass loss of the acrylic resin paint film is reduced, the hardness, tensile properties and limiting oxygen index are improved, and the mechanical properties and flame retardant properties are better.

The invention discloses a high-sealing aluminum foil composite film for packaging a silicon PU material, and relates to the technical field of aluminum foil composite films. 2-carboxyethyl phenyl hypophosphorous acid and diethanol amine are polymerized in advance to prepare a long-chain flame retardant, the long-chain flame retardant and a PET chain segment are subjected to block polymerization to prepare flame-retardant PET, the flame-retardant PET is subjected to melt extrusion and then stretched into a film, then one side of the PET film is coated with a melamino-formaldehyde / polyethylene glycol mixed solution, and the flame-retardant PET film is prepared. And carrying out hot-pressing compounding with aluminum foil after drying and shaping to prepare the aluminum foil composite film.

This invention relates to a fire-retardant, breathable, and waterproof coating and its preparation method. The fire-retardant, breathable, and waterproof coating comprises component A and component B. Component A consists of a waterproof emulsion, additives, and water. Component B consists of cement, quartz powder, heavy calcium carbonate powder, and a water-reducing agent. The waterproof emulsion is a core-shell structure emulsion, and the core structure also includes a pore-forming agent. This invention involves adding a pore-forming agent during the emulsion polymerization process. After coating, water evaporates, latex particles accumulate, the shell layer deforms and fuses to form a continuous phase, and the core layer acts as a support point. As the pore-forming agent decomposes upon heating, microporous channels are formed within the core and shell layers. Since the size of water vapor molecules is much smaller than the micropore diameter, they can pass through freely, thereby achieving breathability.

The present invention discloses a mining microcapsule flame retardant material and a manufacturing process thereof. The mining microcapsule flame retardant material uses a polyurethane foam mixture as a core, a synergistic flame retardant layer is coated on the outer surface of the polyurethane foam mixture, and a modified filling flame retardant layer is coated on the outer side of the synergistic flame retardant layer to form a dense three-layer core-shell structure, wherein the synergistic flame retardant layer is a modified short chopped glass fiber, and the modified filling flame retardant layer is a modified graphene oxide. The present invention relates to the technical field of mining flame retardant materials. The mining microcapsule flame retardant material and the manufacturing process thereof, through the addition of organic silsesquioxane, a small amount of silicon dioxide generated during pyrolysis can improve the dispersibility of the flame retardant in the matrix, which is helpful for foam nucleation, thereby reducing the size of the pores, and at the same time, the diameter of the pores of the polyurethane foam mixture and the dispersibility of the flame retardant are improved to a certain extent, thereby improving the flame retardant effect of the flame retardant material and improving its self-extinguishing ability.

The invention relates to a flame-retardant high-wear-resistance epoxy powder coating and a preparation method thereof, and belongs to the technical field of powder coatings, the epoxy powder coating comprises the following raw materials: self-made epoxy resin, a curing agent, a brightener, benzoin, a leveling agent and a pigment filler. Molybdenum disulfide, carbon fiber and fumed silica are added in the process of self-preparing epoxy resin, and can synergistically provide higher hardness for the system; meanwhile, [(4-vinyl phenyl) methyl] diphenyl phosphine oxide is also added to promote the formation of a carbon layer, phenyltrimethoxysilane is added to improve the thermal stability of the epoxy resin, and a flame retardant HF-T1020 is added to promote the formation of a stable and compact carbon layer of a system; therefore, the powder coating prepared from the self-made epoxy resin disclosed by the invention has excellent wear resistance and flame retardance.

The present invention discloses a preparation method and application of a carbon-coated nano-iron oxide composite material. The present invention uses the carbon-coated nano-iron oxide composite material as the negative electrode active material of the sodium ion battery, introduces a tetraphenyl aromatic ring with a high carbon content into the polyacrylonitrile molecular chain, which is beneficial to improve the graphitization degree of the polyacrylonitrile during high-temperature carbonization, and then forms a nitrogen-doped porous carbon material with better electrochemical performance through pore formation by potassium hydroxide, which can improve the charge and discharge specific capacity of the negative electrode material. During the pre-oxidation and high-temperature carbonization process, Fe 3+ It mainly generates nano-iron tetroxide and other iron oxides, which are evenly dispersed in the porous carbon matrix, improving the agglomeration problem of nano-iron tetroxide and other iron oxides, which is beneficial to improving the actual specific capacity and cycle stability of the negative electrode material.

The invention relates to the technical field of flame-retardant high polymer materials, in particular to flame-retardant modified expandable graphite and a preparation method thereof.The method comprises the steps that firstly, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide is prepared into a dichloromethane solution, then a catalyst and a silane coupling agent are added, the mixture is stirred for a reaction, and the flame-retardant modified expandable graphite is obtained; and finally, carrying out rotary evaporation to obtain a modified oxide, preparing an ethanol solution from the modified oxide, adjusting the pH value to 3-4, carrying out stirring reaction on the ethanol solution and the ethanol solution of the expandable graphite, and filtering and drying to obtain the modified expandable graphite. According to the method, the thermal stability and the charring capacity of the expandable graphite are improved, the problem of non-uniform distribution of the flame retardant is avoided, more carbon layers can be promoted to be generated in the combustion process, and the flame-retardant purpose is achieved; the method is simple to operate and mild in reaction condition, the phosphorus flame retardant and the expansible graphite have a synergistic effect, and the modified expansible graphite is good in thermal stability and high in high-temperature carbon residue amount.

The invention relates to a fluoride-free flame-retardant polyphenyl ether resin composition as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The resin composition comprises the following raw material components in parts by weight: 67-80 parts of polyphenyl ether resin; 3 to 10 parts of HIPS (High Impact Polystyrene) resin; 10 to 16 parts of a phosphate ester flame retardant; 3 to 8 parts of cross-linked styrene toughening master batch; 1-3 parts of an inorganic nano flame retardant; 0.2 to 0.5 part of an antioxidant; 0.1 to 0.5 part of a light stabilizer; and 0.5 to 1.0 part of a lubricant. Compared with the prior art, the fluoride-free flame-retardant polyphenyl ether resin composition disclosed by the invention solves the problems that the conventional flame-retardant polyphenyl ether resin needs an anti-dripping agent PTFE for synergistic flame retardance but cannot meet the PFAS prohibition, and the fluoride-free flame-retardant polyphenyl ether scheme adopting phosphonitrile for flame retardance needs high cost, and has a wide application prospect.

The invention relates to a graphene modified multifunctional polyester fiber, a preparation method thereof and application of the graphene modified multifunctional polyester fiber in down filler, and belongs to the technical field of down filler. The preparation method comprises the following steps: S1, under the action of an acid-binding agent, trimethylolethane and phosphorus oxychloride are subjected to a first-stage reaction in a solvent, then graphene oxide is added for a second-stage reaction, and modified graphene oxide is obtained; s2, granulating the modified graphene oxide and polyester powder to obtain a multifunctional polyester master batch; s3, spinning the multifunctional polyester master batch and the polyester chips to obtain the graphene modified multifunctional polyester fiber. The far infrared normal emissivity of the graphene modified multifunctional polyester fiber is 0.89 to 0.92, the far infrared radiation temperature rise is 2.3 DEG C to 3.1 DEG C, the limit oxygen index reaches 28.3 percent to 29.0 percent, the antibacterial property is higher than 99.9 percent, and the breaking strength is 3.2 cN / detx to 3.4 cN / detx.

The invention discloses a tubular kaolin modified ammonium polyphosphate functional monomer, wherein the functional monomer is prepared by mixing nano-SiO 2 The ammonium polyphosphate treated by grafting, epoxy coating or melamine coating is embedded in the tubular kaolin to obtain the obtained product. The functional monomer formed by the organic-inorganic hybrid reaction of ammonium polyphosphate and tubular kaolin maximizes the synergy of the advantages of ammonium polyphosphate and tubular kaolin, significantly improves its water resistance, and greatly improves its carbonization effect and flame retardant efficiency, and can be directly applied to the flame retardant of related materials. The reaction process of the present invention is simple, the raw materials are easily available, the operation is convenient and safe, and it is easy to promote and apply, and has good industrial promotion and application value.

The preparation method of the intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent disclosed by the application is implemented according to the following steps: step 1, preparing Phy-LDH; and step 2, preparing the intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent. The application also discloses the intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent and application. The application uses sodium phytate intercalated hydrotalcite to expand the interlayer spacing, weaken the interlayer electrostatic effect, reduce the tendency of the sheet layer aggregation, and improve the dispersion stability of the LDH in the castor oil. Meanwhile, the castor oil is modified by phosphate esterification, and a phosphorus-containing group is introduced into the molecule, so that the phosphate esterification modified castor oil and the sodium phytate intercalated hydrotalcite can be uniformly combined to form a stable composite system. The intercalated hydrotalcite / phosphate esterification modified castor oil composite fatliquoring agent also has the functions of softening and flame retardance.

The present invention relates to the technical field of flame retardant materials, and discloses a flame retardant polystyrene insulation board and a preparation process thereof. Naphthalene-histidine cross-linked cyclodextrin forms a microcapsule structure of a spatial cross-linked network structure, which can increase the embedding amount of 2,6,7-trioxa-1-phosphabicyclo (2.2.2) octane-4-methanol-1-oxide, and obtain a cyclodextrin microcapsule flame retardant. It is compounded with melamine-modified urea-formaldehyde resin to form a flame retardant coating liquid, and foamed, blended, and molded with expandable polystyrene beads to obtain a flame retardant polystyrene insulation board. Naphthalene-histidine cross-linked cyclodextrin and 2,6,7-trioxa-1-phosphabicyclo (2.2.2) octane-4-methanol-1-oxide form an expansion flame retardant system, which improves the limiting oxygen index and carbonization effect of the polystyrene insulation board during combustion, reduces the combustion heat release rate, and improves the flame retardant effect of the board, so that the polystyrene board has better applications in the fields of fire protection and flame retardancy.

The application relates to the technical field of pollutant adsorption, and discloses a catalyst-loaded activated carbon adsorption material and a preparation method. Water, a precursor and zinc nitrate are added into a flask, stirred and mixed, dried after filtration, ground and mixed with potassium hydroxide, placed in a tube furnace, calcined, and the catalyst-loaded activated carbon adsorption material is obtained. The activated carbon has a high specific surface area and a high pore volume, can promote the adsorption of formaldehyde, the nano zinc oxide is uniformly distributed in the activated carbon matrix and is not prone to agglomeration, has higher photocatalytic degradation performance on formaldehyde, and significantly improves the removal rate of the catalyst-loaded activated carbon adsorption material on formaldehyde.

The invention discloses a high-sealability aluminum foil composite film for encapsulating silicon PU materials, and relates to the technical field of aluminum foil composite films. The invention prepares a long-chain flame retardant by polymerizing 2-carboxyethylphenylphosphite and diethanolamine in advance, and block polymerizes the long-chain flame retardant with a PET segment to prepare a flame-retardant PET, and then stretches the flame-retardant PET into a film after melt extrusion, and then coats a melamine formaldehyde / polyethylene glycol mixed solution on one side of the PET film, and then heat-presses and composites it with aluminum foil after drying and shaping to prepare an aluminum foil composite film.