1628results about "Inorganic compound addition" patented technology

A composite can include cellulose fiber; and foam binding the cellulose fiber. A method for manufacturing a composite can comprise mixing a plurality of ingredients to form a pre-foam mixture; foaming the pre-foam mixture to produce a foam; mixing the foam with cellulose fiber to form a composite material; and curing the composite material.

A composite can include cellulose fiber and foam binding the cellulose fiber. A method for manufacturing a composite can comprise mixing a plurality of ingredients to form a pre-foam mixture, foaming the pre-foam mixture to produce a foam, mixing the foam with cellulose fiber to form a composite material, and curing the composite material.

Provided is an electroconductive sheet 10 comprising an aromatic polyamide pulp, a fluororesin, a carbon-based electroconductive substance, and an electrode catalyst. Also provided is a production method for the electroconductive sheet, the method comprising: a step X1, in which a slurry X1 including an aromatic polyamide pulp, a fluororesin, a carbon-based electroconductive substance, and an electrode catalyst is prepared and the slurry X1 is formed into a sheet by wet laying to obtain an electroconductive-sheet precursor X1; and a step Y1, in which the electroconductive-sheet precursor X1 is hot-pressed in air at a temperature of 100-350°C and a linear pressure of 10-50 N / m and thereafter fired in an inert gas at 200-500°C. Use may be made of a method in which either one of a slurry X2-1 containing no electrode catalyst and a slurry X2-2 containing the electrode catalyst is formed into a sheet by wet laying to obtain the electroconductive-sheet precursor, and the other slurry is formed into a sheet by wet laying on one surface of the electroconductive-sheet precursor.

The invention discloses a large-size green packaging carton and a preparation process thereof, and relates to the field of packaging box preparation. The environment-friendly composite material comprises the following raw materials in parts by weight: 50-80 parts of plant fiber slurry, 10-25 parts of a modified starch-based adhesive, 5-15 parts of a nanoscale inorganic reinforcing filler, 1-5 parts of a degradable water repellent agent, 0.5-3 parts of a cross-linking agent and 2-8 parts of starch and plant fiber composite buffer microspheres. According to the preparation method, full-environment-friendly raw materials such as plant fiber slurry and a modified starch-based adhesive are selected and matched with starch and plant fiber composite buffer microspheres, and optimized processes such as segmented temperature control pressurization molding, adhesive gelatinization treatment, stirring speed reduction and microsphere structure protection are combined; and through coating of the degradable polymer coating and micron-sized hydrophobic texture imprinting, synergistic improvement of high compressive strength, excellent buffering performance, excellent hydrophobic and damp-proof effects and high degradation rate of the carton is achieved.

The invention relates to the technical field of fuel cells, in particular to a preparation method of carbon fiber paper for a gas diffusion layer of a fuel cell. Comprising the following steps: adding phenolic resin, a dispersing agent, an anti-settling agent, asphalt and a graphitization template agent into a mixed solvent, and mixing and dispersing to prepare a resin impregnation liquid; and immersing the carbon fiber raw paper into the resin impregnation liquid for impregnation, drying, and then carrying out hot-pressing curing and graphitization treatment to obtain a final product. Part of phenolic resin is replaced with asphalt, a graphitization template agent is introduced, the graphitization temperature of the carbon fiber paper is reduced, the graphitization degree of resin carbon is improved, and the problems that asphalt and the graphitization template agent are difficult to disperse and easy to settle in phenolic resin impregnation liquid are solved by optimizing the formula of the resin impregnation liquid; according to the present invention, the asphalt, the phenolic resin and the graphitization template agent are loaded on the carbon paper body paper through the one-step impregnation, such that the advantages of simple process, low graphitization temperature and low energy consumption are provided, and the prepared carbon fiber paper has good conductivity.

The invention relates to double-color erasable thermo-sensitive paper based on multi-color and multi-layer superposition and a preparation method of the double-color erasable thermo-sensitive paper, and relates to the technical field of printing supplies. The invention provides double-color erasable thermo-sensitive paper based on multi-color and multi-layer superposition. The double-color erasable thermo-sensitive paper comprises a protective layer, a thermo-sensitive coating and a base material which are sequentially arranged from top to bottom, the thermosensitive coating comprises a red thermosensitive coating, a yellow thermosensitive coating and a blue thermosensitive coating which are sequentially arranged from top to bottom. The two-color erasable thermal sensitive paper prepared by the preparation method provided by the invention can be subjected to color overlapping, and the color coordinates of the two-color erasable thermal sensitive paper only have tiny deviation after being repeatedly erased for 100 times, so that the two-color erasable thermal sensitive paper can be repeatedly used, resources are greatly saved, pollution is reduced, and the two-color erasable thermal sensitive paper is environment-friendly.

The invention particularly relates to a preparation method of aramid fiber filter paper, which comprises the following steps: step (1), aramid pulp fibers are added into a dispersion liquid for multiple times for dispersion treatment to obtain gradient-size aramid mixed fibers, and the dispersion liquid comprises a dispersing agent, strong base and a solvent; (2) mixing the gradient-size aramid fiber mixed fiber with water, and mechanically stirring at a high speed to obtain gradient-size aramid fiber mixed fiber slurry; and (3) processing and forming the gradient-size aramid fiber mixed fiber slurry to obtain the aramid fiber filter paper. The invention further relates to aramid fiber filter paper and application thereof. The aramid fiber filter paper disclosed by the invention is high in filter precision and low in filter resistance, and can be used as a hierarchical composite material.

The invention provides super-strong barrier packaging paper and a preparation method thereof, relates to the field of high-barrier packaging paper, and aims to solve the problems that the barrier property of a traditional packaging material is reduced and the mechanical property is insufficient in a high-humidity environment. The packaging paper is composed of a coating barrier layer, a transparent film layer and a body paper base layer, and is prepared through a special process, so that the transmittance of oxygen and water vapor is remarkably reduced, and the shelf life of packaged contents is effectively prolonged. The preparation method comprises the following steps: mixing wood pulp fibers with a citric acid hydration solution, adding materials such as cationic starch to form fiber slurry, and drying to obtain the raw paper base layer; mixing and extruding acrylonitrile copolymer and other materials to form a transparent film layer; materials such as lignin and a citric acid hydration solution are mixed to form cross-linked slurry, the cross-linked slurry is mixed with a polymer solution to obtain a cross-linked coating, the raw paper base layer is coated with the cross-linked coating, the cross-linked coating is dried and then compounded with the transparent film layer, and the packaging paper has excellent barrier performance and mechanical performance and is particularly suitable for being used in areas with large temperature and humidity changes.

The invention provides a preparation method of modified nanocellulose, a biomass coating and a composite paper wood, the preparation method of modified nanocellulose comprises the following steps: a, oxalic acid is heated to a molten state, bleached wood pulp is added to the molten oxalic acid for a reaction, and nanocellulose is obtained; b, dispersing nanocellulose in water, and mixing with coniferyl alcohol solution, hydrogen peroxide solution and first enzyme solution for reaction to obtain DHP-nanocellulose; c, mixing the DHP-nanocellulose with coniferyl alcohol glucoside, a second enzyme solution and a hydrogen peroxide solution, and reacting to obtain the modified nanocellulose. According to the invention, a plant lignification process is simulated, so that crosslinking in lignin-glycan complex forms such as anisole bonds, ester bonds and the like and connection of covalent bonds such as Beta-aryl ether bonds among lignin are regenerated among separated fibers, and the modified nanofiber with high physical strength is obtained; and some environmental pollution problems caused by the use of raw materials and products in a traditional reinforcing method are solved.

The invention discloses a biomass-based reinforcing agent for paper and application of the biomass-based reinforcing agent. The reinforcing agent comprises a biomass-based material, the biomass-based material comprises a micron-sized structure and a nano-sized structure distributed on the micron-sized structure. The reinforcing agent prepared by the invention has abundant nanostructures, is beneficial to physical crosslinking such as entanglement and bridging of fibers in paper pulp, and improves the wet strength of paper; the preparation of the reinforcing agent is a simple physical process, and a complex synthesis chemical process for synthesizing a polymer in a traditional organic reinforcing agent is avoided; the reinforcing agent is prepared by a dissolution regeneration method, so that the energy consumption is low, the solvent can be recycled and reused, no chemicals are consumed, and the reinforcing agent is environment-friendly; the reinforcing agent prepared by the invention can achieve a satisfactory wet strength effect at a lower content.

The invention relates to the technical field of papermaking, and particularly provides high-strength tipping base paper for cigarettes and a preparation process of the high-strength tipping base paper. The tipping paper base paper for the cigarettes comprises a fiber raw material; functionalizing the nano cellulose; a cellulase; a dry strength agent; a wet strength agent; and a sizing agent. Nano cellulose is functionalized and a synergistic stepped enhancement mechanism is constructed, so that the synergistic breakthrough of the high-strength raw tipping paper for cigarettes in the aspects of strength, wet strength and air permeability is realized; after the functionalized nanocellulose is subjected to carboxylation treatment, the hydrogen bond and electrostatic adsorption between the functionalized nanocellulose and the fiber are enhanced, and the bonding strength in a dry state and a wet state is remarkably improved; meanwhile, the wet strength agent is added in stages, and the adsorption sequence of the dry strength agent is optimized, so that the reinforcing agent constructs a stable three-dimensional network framework in the paper sheet, and the end breaking risk under high-speed winding is effectively reduced.

The invention discloses a straw paper mulching film based on thermo-mechanical pulp as well as a green preparation method and application of the straw paper mulching film. The invention belongs to the field of biomass resource utilization. Aiming at the defects in the prior art, the invention provides a green preparation method of a straw paper mulching film based on thermo-mechanical pulp. According to the method, the staged hydrothermal grinding technology is adopted, washing is not needed, the acidic paper pulp is directly obtained, and the technological process is simplified. Meanwhile, the invention innovatively develops a green sizing agent taking chitosan as a main material. The sizing agent can be directly fused with acidic paper pulp, and acid and alkali do not need to be additionally added for adjusting the pH value. The dry tensile index of the straw paper mulching film is larger than or equal to 15 N.m / g, the wet tensile index is larger than or equal to 5 N.m / g, the burst index is larger than or equal to 3.5 kPa.m < 2 > / g, the contact angle is larger than or equal to 105 degrees, and the 2-hour water absorption rate is smaller than or equal to 50%.

The invention discloses a cationic core-shell PHA nano-emulsion reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The problems that a traditional wet strength agent is poor in environmental protection property and difficult to recycle, and a conventional bio-based material needs high-temperature curing and is high in energy consumption are solved. According to the reinforcing agent, low-MFFT bio-based polyhydroxyalkanoate is used as a core, and a positive ion shell layer with strong positive charges is wrapped outside the core. The method has the core advantages that extra high-temperature curing is not needed, the film can be efficiently formed under the conventional 105 DEG C drying condition, and the energy consumption is remarkably reduced; meanwhile, high dry and wet strength and water resistance are achieved, the treated paper has excellent re-pulping recycling suitability, and the industrial pain point that traditional wet strength paper is difficult to recycle is solved.

The invention relates to the technical field of polymer composite materials, in particular to an aramid nanofiber low-frequency wave-absorbing composite material and a preparation method thereof. The aramid nanofiber low-frequency wave-absorbing composite material is prepared from the following raw materials: magnetic wave-absorbing fibers and aromatic polyamide nanofibers, the magnetic wave-absorbing fiber is prepared from a raw material system comprising FeCo magnetic wave-absorbing filler, aromatic polyamide fiber and a hyperbranched polysiloxane modifier. The aramid nanofiber low-frequency wave-absorbing composite material prepared by taking the magnetic wave-absorbing fibers and the aromatic polyamide nanofibers as raw materials not only has excellent mechanical properties (the tensile strength can reach 133 Mpa), but also has excellent wave-absorbing performance (the minimum reflection loss can reach-46.8 dB, and the low-frequency effective absorption bandwidth (EAB) is 2.24 GHz (5.52 GHz to 7.76 GHz). The method can be widely applied to the fields of communication and electronic equipment.

The invention relates to the field of packaging materials, and discloses low-temperature heat-sealing water-based coated paper and a preparation method and application thereof.The water-based coated paper comprises a base paper layer and a water-based coating, and the water-based coating comprises water-based ethylene-acrylic acid copolymer emulsion, modified nano-silica, a coalescing agent and water; a cardanol derivative is introduced into the water-based ethylene-acrylic acid copolymer emulsion as a functional component; the cardanol derivative is prepared by reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and then grafting with acryloyl chloride. The preparation method comprises the following steps: reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; the modified nano silicon dioxide is prepared by mixing aminated nano silicon dioxide and chitosan and adding a cross-linking agent prepared by grafting phytic acid and ethylene glycol diglycidyl ether. The water-based coating paper prepared by the invention overcomes the defects that the existing BOPP film is not environment-friendly, and the conventional coating paper is high in heat sealing temperature and easy to stick; meanwhile, good mechanical properties, water resistance and flame retardance are achieved.

The present invention belongs to the technical field of special paper preparation, and particularly relates to a production method of high-strength aluminized base paper, comprising the steps of: S1, beating: respectively beating long-fiber primary pulp and short-fiber primary pulp, wherein the beating degree of the long fiber is 40-50°SR, and the beating degree of the short fiber is 20-30°SR; S2, adding additives: adding modified inorganic filler, cationic starch and retention aid to the short-fiber pulp; S3, pulp mixing: mixing the long-fiber pulp and the short-fiber pulp according to a weight ratio, and then adding modified bamboo fiber, and uniformly stirring to form a mixed pulp; S4, wire drawing and papermaking; S5, spraying a surface treatment agent; S6, paper drying, calendering and winding. The aluminized base paper obtained by the production method of the high-strength aluminized base paper of the present invention has the advantages of high strength and good smoothness.

The invention belongs to the technical field of packaging carton production, and discloses a folding-resistant damp-proof packaging carton and a preparation method thereof. The folding-resistant moisture-proof packaging carton is prepared from the following raw materials in parts by weight: 70 to 80 parts of papermaking wood flour, 8 to 10 parts of filler, 30 to 40 parts of modified plant fiber, 20 to 30 parts of high-toughness plant fiber-based composite material, 8 to 10 parts of carboxymethyl cellulose and 1 to 2 parts of additive. According to the folding-resistant damp-proof packaging carton and the preparation method thereof, the defects that a packaging carton is prone to being affected with damp, cracks exist after being folded for multiple times, and the packaging carton is difficult to reuse are overcome. Through the modified plant fibers and the high-toughness plant fiber-based composite material, the folding resistance of the packaging carton is effectively improved, and meanwhile, the moisture resistance of the carton is also improved.

The invention discloses base paper for aluminum spraying and a preparation method thereof, and relates to the technical field of base paper. The preparation method comprises the following steps: pulping softwood pulp, then adding deionized water to dilute the softwood pulp until the mass concentration is 0.8%-1%, then adding modified gel particles, modified bentonite and a PAE wet strength agent, adjusting the pH value to 6.5-7.5, stirring for 40-60 minutes, and then adding deionized water to dilute the softwood pulp until the mass concentration is 0.5%-0.7% to obtain mixed paper pulp; and then making the mixed paper pulp into paper sheets, squeezing, drying, coating the surface layer coating on the surface of base material paper, and drying with hot air to obtain the body paper for aluminum spraying. According to the invention, the modified gel particles and the modified bentonite are added, so that the mildew-proof and moisture-proof capabilities of the base paper for aluminum spraying are effectively improved; the introduction of the surface coating further improves the mildew-proof and moisture-proof capabilities. Therefore, the method has a wider application prospect.

The present invention provides a novel inorganic fiber sheet which is suitable for use in a high temperature environment.　One embodiment of the present invention is an inorganic fiber sheet which includes inorganic fibers and an inorganic coating layer that covers the inorganic fibers. The ratio (MS / MB) of the content MS of the inorganic fibers to the content MB of the inorganic coating layer is 0.25 to 9.00. The average fiber length of the inorganic fibers is 10 µm to 20 mm, and the average aspect ratio of the inorganic fibers is 20 to 20,000. An interlacing point of the inorganic fibers is formed at least in a partial region in which the inorganic coating layer is formed.

The invention provides cellulose-based electronic carrier tape paper and a preparation method thereof, and the preparation method comprises the following steps: step (1): soaking a first wood pulp board in water until fibers are swelled, and pulping to obtain pulp; step (2), enabling the basalt nanosheet to react with polyvinylpyrrolidone, so as to obtain a carbonyl modified basalt nanosheet; (3) soaking the second wood pulp board in water until the second wood pulp board is completely defibered to obtain paper pulp, grinding the paper pulp, and carrying out micro-jet nano-homogenization treatment to obtain a cellulose nano-fibril suspension; and (4) uniformly mixing the cellulose nanofibril suspension, carbonyl modified basalt nanosheets and an antistatic agent with the slurry prepared in the step (1), forming a paper sample to obtain a wet paper sheet, and drying to obtain the cellulose-based electronic carrier tape paper. The cellulose-based electronic carrier tape paper prepared by the invention is obviously superior to the traditional electronic carrier tape paper in the aspects of environmental protection, cost, electrostatic protection and mechanical property.

The invention discloses a cellulose insulation paper damage repairing method based on a mechanical enhanced microcapsule, and relates to the technical field of high voltage and insulation. According to the repairing method, damage repairing is conducted on cellulose insulation paper based on a mechanical enhanced microcapsule, the mechanical enhanced microcapsule is mainly prepared from a capsule wall and a core material, the capsule wall comprises polyurethane and nano-silica, and the core material comprises DCPD and a Hoveyda-Grubbs catalyst. The problems that a repairing agent leaks too early and the repairing efficiency is low due to the fact that microcapsules in traditional insulation paper are prone to being broken in advance under external stress are solved, damage repairing is conducted through the insulation paper containing the microcapsules, and the efficiency and accuracy in the repairing process can be improved.

The invention provides antireflection eye protection functional paper and a preparation method thereof. According to the preparation method, the coating with specific content components is adopted and matched with specific process steps, overall good interaction is achieved, compared with coated base paper, the diffuse reflection rates of the prepared anti-reflection eye-protecting functional paper are reduced by 10.07% at 315 nm and 6.77% at 400 nm respectively in a harmful blue-violet light area (400-480 nm) and an ultraviolet light area (especially UVA with the wavelength range of 315-400 nm), and the anti-reflection eye-protecting functional paper has the beneficial effects that the anti-reflection eye-protecting functional paper is good in anti-reflection effect and good in anti-reflection effect. The damage of harmful light to the retina of human eyes can be effectively reduced, and the effects of preventing myopia and protecting eyes are achieved; meanwhile, compared with coated raw paper, the reflectivity of the anti-reflection type eye protection functional paper is increased by 0.2% on the contrary within the 500-700 nm wave band comfortable for human eye reading, and the reading experience feeling of readers is further guaranteed.

The present invention relates to the technical field of decorative paper, and in particular to wood-based panel surface decorative paper, comprising print base paper and an adhesive film layer covering the surface of the print base paper. The adhesive film layer is made of impregnation glue liquid. The impregnation glue liquid comprises the following raw materials in parts by weight: 75-85 parts of modified polyurethane emulsion, 5-9 parts of an epoxy resin, 6-10 parts of a filler, 4-7 parts of nanocellulose, 2-3 parts of a silane coupling agent, 1.5-2.5 parts of a film-forming auxiliary agent, 0.2-0.3 parts of a defoaming agent, and 20-30 parts of water. The wood-based panel surface decorative paper comprises print base paper and an adhesive film layer covering the surface of the print base paper; the adhesion between the adhesive film layer and the print base paper is good; and the wood-based panel surface decorative paper has good wear resistance, good water vapor resistance, good cold and hot cycle resistance, and other properties, can reduce formaldehyde emission and is environmentally friendly.

The invention relates to the technical field of artificial board processing, in particular to an adhesive for high-toughness impregnated bond paper and a preparation method thereof, and the adhesive comprises the following components: 50-70 parts of melamine, 20-30 parts of formaldehyde solution, 9-29 parts of modified foamed honeycomb type polyurethane flexible body, 1-3 parts of polyvinyl alcohol, 1-5 parts of rosin, 1-5 parts of solid filler, 2-8 parts of emulsifier, 0.05-0.1 part of pH regulator and 60-90 parts of water. Through a strategy of combining internal toughening modification (a flexible foaming method) and external toughening modification (flexible polymer blending and filler modification), a melamino-formaldehyde system of the prepared adhesive has very excellent toughness, and the problem that impregnated bond paper is easy to crack due to size change caused by inadaptation to the moisture content of a base material is effectively solved.

The invention relates to the technical field of antibacterial and antiviral plates, and discloses a composite antibacterial and antiviral plate and a composite antibacterial and antiviral agent.The composite antibacterial and antiviral plate comprises two base materials, balance layers are arranged at one ends of the two base materials, and adhesives are arranged between the two base materials and the two balance layers; according to the composite antibacterial and antiviral plate, a novel composite antibacterial and antiviral agent is formed by combining multiple antibacterial and antiviral technologies, compared with a common antibacterial or antiviral plate, the antibacterial and antiviral plate has the synergistic interaction effect, the antibacterial and antiviral effect is good, and the service life of the antibacterial and antiviral plate is prolonged. Compared with the prior art, the preparation method has the advantages that the single antibacterial or antiviral function is increased by 30%, antibacterial and antiviral components are more uniformly dispersed in a system through synergistic interaction and a porous nanostructure, consumption of effective components is reduced through ion replacement, the effect of slow release of the effective components is achieved, and the antibacterial and antiviral aging life is prolonged.

The invention discloses a preparation method and application of chlorine dioxide preservative paper.The preparation method comprises the steps that starch, nanocellulose, hydrogen peroxide, ferric sulfate, distilled water and sodium hydroxide are mixed to obtain gelatinized starch, and then the gelatinized starch is mixed with water-based acrylic resin, casein, alkyl glycoside and ammonium persulfate to obtain composite starch glue; mixing sodium chlorite and composite starch glue to obtain fresh-keeping coating liquid A, and then coating the fresh-keeping coating liquid A on fresh-keeping base paper to obtain fresh-keeping coating liquid A paper; citric acid and distilled water are mixed to obtain fresh-keeping coating liquid B, and then fresh-keeping base paper is soaked in the fresh-keeping coating liquid B to obtain fresh-keeping coating liquid B paper; the fresh-keeping coating liquid A paper and the fresh-keeping coating liquid B paper are attached to obtain the chlorine dioxide fresh-keeping paper. The chlorine dioxide fresh-keeping paste is pasted on the inner side of the blueberry packaging box cover to keep the blueberries fresh. The chlorine dioxide preservative paper prepared by the invention can solve the problems of burst release and short retention time of chlorine dioxide, can reduce the problems of easy softening, rot and deterioration of picked blueberries, prolongs the shelf life of the blueberries, and improves the commodity value of the blueberries.

The invention belongs to the field of paper products, and particularly relates to a pulp composition for a high-quality paper product and application of the pulp composition. The bio-based additive comprises a component A, a component B and a component C, wherein the component A is one or two of a biomass material with a dendritic or network-shaped structure or a cationized biomass material with a dendritic or network-shaped structure; and optionally containing or not containing a component B: one, two or more selected from the group consisting of polyhydroxyalkanoates, alkyl ketene dimers, polyglycolide, polylactide, copolymers of butylene adipate and butylene terephthalate, polyoxyethylene stearate, cellulose esters and cellulose ethers. A large number of hydroxyl groups are distributed in the component A, the hydroxyl groups can form hydrogen bonds with cellulose and the like in fiber pure pulp to form a larger network structure, the prepared paper product is high in strength, meanwhile, the hydrogen bonds and the hydroxyl groups are beneficial to water interception, and the water absorption of the paper product can be improved.

The invention belongs to the technical field of environment-friendly paper materials, and provides environment-friendly fireproof flame-retardant paper and a preparation method thereof, and the environment-friendly fireproof flame-retardant paper is prepared from the following raw materials in parts by mass: 20-40 parts of alginate fiber, 50-80 parts of bamboo pulp fiber, 5-15 parts of a flame retardant, 2-5 parts of chitosan, 1-3 parts of nano silicon dioxide and 200-400 parts of water. The alginate fibers and the bamboo pulp fibers are used as main raw materials, and the phosphorus-nitrogen environment-friendly flame retardant and the modified magnesium hydroxide are compounded, so that the dual effects of natural flame retardance and chemical synergy are achieved; according to the invention, the flame retardant and the fibers are synchronously beaten, so that nonuniformity and agent waste caused by later-stage coating are avoided; the environment-friendly fireproof flame-retardant paper is prepared from environment-friendly materials, volatile organic compounds are not discharged in the whole process, the paper can be recycled and degraded, the binding force between modified magnesium hydroxide and fibers is high, and the physical performance of the paper can be further improved.

The present invention relates to the field of fuel cell technology, and in particular, to a method for preparing carbon fiber paper for a fuel cell gas diffusion layer. The method comprises the following steps: adding phenolic resin, dispersant, anti-settling agent, asphalt and graphitization template agent into a mixed solvent for mixing and dispersing to obtain a resin impregnation solution; immersing carbon fiber base paper into the resin impregnation solution for impregnation, drying, and then subjecting to hot pressing curing and graphitization treatment to obtain a final product. Asphalt is used to replace part of the phenolic resin, and a graphitization template agent is introduced to reduce the graphitization temperature of the carbon fiber paper and improve the graphitization degree of the resin carbon. By optimizing the formula of the resin impregnation solution, the problem that asphalt and graphitization template agent are difficult to disperse and easy to settle in the phenolic resin impregnation solution is solved, and the asphalt, phenolic resin and graphitization template agent are loaded on the carbon paper base paper by a one-step impregnation method. The method has the advantages of simple process, low graphitization temperature and low energy consumption, and the prepared carbon fiber paper has good conductivity.

The invention relates to the technical field of cigarettes, and discloses cigarette paper and an aerosol generating matrix product. The cigarette paper is used for wrapping an aerosol generating substrate, accelerant particles are arranged on one side, in contact with the aerosol generating substrate, of the cigarette paper, and the accelerant particles comprise an SAPO 34 molecular sieve and a metal compound loaded on the SAPO 34 molecular sieve. The cigarette paper aerosol generating substrate can effectively reduce the smoke moisture content of a heated cigarette.