133results about How to "Good water absorption" patented technology

The invention discloses a method for simultaneously producing pentosan and dietary fiber by a wheat bran enzyme engineering method, belonging to the food processing field of the deep processing transformation of the food processing by-product. The method takes industrial wheat outer bran as raw material; after the moisture and the Ph of the industrial wheat outer bran are regulated, cell wall lytic enzyme is adopted for being acted on the wheat bran; and then a screw extruder is adopted for extrusion expansion treatment; alkali liquor, the Ph of which is equal to 10, is used for extraction; and extraction solution obtained by decentralization is deproteinized, concentrated, and dried in vacuum to obtain pentosan. Precipitant obtained by alkali liquor extraction and decentralization is decolorized by H2O2 solution, washed, dried and ground to obtain dietary fiber. The technology can simultaneously produce pentosan and dietary fiber, also can only produce pentosan or dietary fiber according to market demands, and is flexible. The obtained pentosan and dietary fiber can serve as addition agent and functional factors, and are applied to food, pharmaceutical industries and cosmetic industries, thus realizing the effective transformation and utilization of the wheat bran.

The invention particularly relates to a composite organic nursery substrate and a production method thereof. The substrate adopts leftovers of edible fungi and peanut shells as main materials, adopts peat, vermiculite, rice husk ash and attapulgite as accessories and adopts water retention agents, green fertilizers and ferrous sulfate as additives. The volume ratio of the main materials is 40-60:20-30 in sequence, the accessories are 5-20% of the main materials and the additives are in proper quantities. The production process of the substrate is as follows: decomposition pretreatment is carried on the main materials; the accessories and additives are added according to the volume ratio and are stirred evenly until the mixture passes test to be a qualified finished product. The substrate of the invention has good quality, rapid and neat emergence of seedlings, healthy plant growth and good water retention. The fertilizer efficiency can last for 30-50 days, enough for the growing development of the seedling stage, thus simplifying the management of labor power on plug seedling. Meanwhile, with good buffer action, the substrate can be widely applied to seedling culture of various organisms such as vegetables, flowers, cotton, rice, tobacco and nursery stocks, etc.

The invention relates to a honeycomb-shaped silicon carbide ceramic carrier, and a preparation method and an application thereof. The preparation method comprises the following steps: mixing of raw materials: a step of mixing main materials and auxiliary materials so as to obtain a mixed material, wherein the main materials comprise a first silicon carbide powder material with a particle size of 50 to 65 [mu]m and a second silicon carbide powder material with a particle size of 10 to 40 [mu]m, and the auxiliary materials comprise a sintering auxiliary agent, an adhesive and a pore-forming agent; preparation of a green body; and sintering. The honeycomb-shaped silicon carbide ceramic carrier prepared by using the method provided by the invention can be applied to the fields of metallurgy, environmental protection, chemical industry, energy, biology, food and medicine. According to the invention, the use of two silicon carbide powder materials with different particle sizes increases the water content of a clay material and facilitates extrusion of the clay material, so a ceramic carrier with smooth surface is obtained; meanwhile, the ceramic carrier prepared by using the method provided by the invention has the advantages of high porosity, high strength and more applicability to practical application.

The invention relates to a soil improved organic fertilizer for peanut planting. The key point is that the fertilizer is mainly applied to zones with barren soil and is an extremely good soil improver. The fertilizer is long-term effective and suitable for growth of crops and mainly comprises soil improving components such as filter sludge of a sugar refinery, earthworm soil, ground phosphate rock, limestone powder and the like, so that soil mineral substances are increased. By adding mycalex particles, not only can the soil be prevented from being hardened, but also the soil has a good water absorption function. Organic matters after mixed fermentation are wrapped in surfaces of chemical components and preferably enter into the soil layer. After soil is loosened, the chemical components wrapped inside are directly acted on the root systems of crops, so that nutrients are utilized to the maximum extent. The packaging agent which is prepared from resin and the like not only is pollution-free, but also has a good slow release function.

The water-absorbent resin composition and its preparation method according to the present invention can provide a water-absorbent resin composition containing water-absorbent resin particles and a metal compound, the water-absorbent resin composition containing A water-absorbent resin composition comprising water-absorbent resin particles of an internal crosslinked structure, a nitrogen-containing ketone compound (A), and a divalent and / or trivalent and / or tetravalent water-soluble polyvalent metal salt, characterized in that, The total amount of the nitrogen-containing ketone compound (A) and the divalent and / or trivalent and / or tetravalent water-soluble polyvalent metal salt is 0.01 to 100 parts by mass relative to 100 parts by mass of the water-absorbent resin particles. Therefore, The water-absorbent resin composition is excellent in absorbency represented by centrifuge retention capacity (CRC) and absorption capacity under a pressure of 4.83 kPa (AAP), etc., liquid represented by saline flow conductivity (SFC) etc. It has excellent circulation diffusibility, excellent fluidity during moisture absorption, high damage resistance, excellent powder suppression effect, hardly penetrates into the water-absorbent resin particles added with metal compounds, and hardly causes separation of added metal compounds.

The invention relates to household paper. The household paper comprises a paper base body, wherein the paper base body comprises a first base paper layer and a second base paper layer; the first base paper layer is stacked on the second base paper layer; the first base paper layer has a first outer surface which is exposed to the outer part; the second base paper layer has a second outer surface which is exposed to the outer part; the first outer surface and the second outer surface are arranged oppositely; and the first base paper layer has hydrophobicity, and the second base paper layer has hydrophily. Compared with the prior art, the household paper provided by the invention can prevent sewage from wetting hands of a user in the process of wiping the sewage, thereby effectively protecting the hands of the user.

Disclosed is a seed to be used for growing a plant, which has, attached thereon, a water-holding material composition for plant growth, wherein the water-holding material composition can increase the rate of germination of the seed even in an environment having a lower moisture content such as a dry region. Also disclosed is a seed having, attached thereon, a water-holding material composition for plant growth, wherein the water-holding material composition can exhibit a function as a supply source of water or a plant growth promoter to a plant after the seed is germinated and has excellent handling properties during sowing. A water-holding material composition for plant growth which comprises water-absorptive resin particles having a specific physical property is attached on the surface of a seed of a plant. As the specific physical property, the water-absorptive resin particles have a pure water absorbency (AAPw) of 60 to 200 [g / g] under application of a pressure of 2.07 kPa for 60 minutes.

The invention relates to a nano water ion generating device, which comprises a semiconductor crystal grain pair consisting of a P-type semiconductor and an N-type semiconductor. One end of the semiconductor crystal grain pair is a refrigerating end, and the other end of the semiconductor crystal grain pair is a radiating end. The nano water ion generating device also comprises a water condensationdisc, a discharge electrode and a constant voltage electrode; the water condensation disc is electrically connected with the refrigerating end of the semiconductor crystal grain pair; one end of thedischarge electrode is a water absorption end, the water absorption end is close to the water condensation disc, and the other end of the discharge electrode is a discharge end; and the constant voltage electrode is arranged on the side part of the discharge electrode. The nano water ion generating device can be applied to the fields of air purification, sterilization, cosmetology and hairdressing, moisture preservation, fresh keeping and the like.

The invention relates to N, N-dimethyl dodecyl terminal quaternization modified silicone oil, and a preparation method and application thereof. The preparation method comprises the steps of reacting octamethyl cyclotetrasiloxane and tetramethyl dihydro disiloxane according to the proportion in the presence of an acid catalyst so as to prepare double-terminal hydrogenous silicon oil; carrying out hydrosilylation reaction on the silicon oil and glycidyl allyl ether or allyl polyoxyethylene polyoxypropylene glycidyl ether to obtain epoxy-terminated silicone oil; and finally, carrying out aminolysis ring-opening reaction on the epoxy-terminated silicone oil and N, N-dodecyl tertiary amine to obtain the terminal quaternization modified silicone oil. The silicone oil is used as a textile finishing agent for treating cotton fabrics, so that the cotton fabrics are endowed with an antibacterial property, meanwhile, the softness of the cotton fabrics can be also improved, and the hydrophilia is better at the same time.

The invention relates to a paper diaper with good water-absorbing quality. The paper diaper with the good water-absorbing quality comprises a surface coating layer, an absorbing core layer and a bottom lining layer, wherein the absorbing core layer contains dried and dehydrated biological cellulose micro powder. The paper diaper with the good water-absorbing quality has the advantages of being good in water-absorbing quality, being breathable and having no discomfort when the paper diaper is used for a long time, and being biodegradable and environmentally friendly after being used.

The invention relates to a photonic crystal material with humidity response allochroic characteristic and a preparing method thereof, and belongs to the field of material science. The preparing method includes the steps that a biological material of a photon structure serves as a biological template and is soaked in a precursor solution containing monomers, an initiator and a crosslinking agent, after diffusive equilibrium is reached, the template is taken out and heated to be subjected to an in-situ polymerization reaction, by means of the chemical bond connection function of the crosslinking agent, the surface of the template is evenly covered with a polymer, the own special hierarchical photon structure is reserved, and the obtained composite material has the obvious humidity response allochroic characteristic. Compared with the prior art, the responsiveness photonic crystal material is of the special hierarchical structure, has excellent response characteristic in the humidity response aspect and has potential application prospects in the field of chemical sensing.

The invention aims to provide a water absorber which exhibits high gel stability, little scattering in gel stability among particle sizes, and good water absorption characteristics. A particulate water absorber which comprises a water-absorbing resin as the main component and a chelating agent and in which the constituent particles comprise particles having particle diameters of less than 300[mu]m and particles having particle diameters of 300 to less than 850[mu]m, each particle diameter being determined by JIS standard sieves, characterized in that: the content of the chelating agent is 0.001 to 5 parts by weight relative to 100 parts by weight of the solid matter of the water-absorbing resin; and the relationship (1) 1.2<C1 / C2<4.0 is satisfied.

The invention discloses a rice bran immune peptide and a preparation method thereof. The invention uses fall-fat rice bran as raw material, adopts a low alkali method to extract rice bran protein and uses tryptic enzyme to hydrolyze rice bran protein so as to obtain the rice bran peptide. By adopting the low alkali method to extract the rice bran protein and animal proteolytic enzyme to hydrolyze the rice bran protein, the products obtained not only have no bitterness, taste good, but also have immunoregulatory activity.

The invention provides biomass nanocellulose / polypyrrole composite aerogel, and a preparation method and application thereof, belonging to the technical field of composite aerogel materials. The composite aerogel provided by the invention has a porous network structure, and comprises biomass nanocellulose and polypyrrole coating the surface of the biomass nanocellulose. According to the preparation method, the biomass nanocellulose and the polypyrrole are compounded, and the obtained composite aerogel has the same advantages as both the nanocellulose and the polypyrrole, is light and flexible,has good electrical conductivity, water absorption and heat absorption properties, and is good in environmental stability. The preparation method of the biomass nanocellulose / polypyrrole composite aerogel is simple and convenient to operate, conditions are easy to control, and large-scale production is easy to realize. The invention also provides the application of the biomass nanocellulose / polypyrrole composite aerogel as a conductive material or a water generator.

The invention discloses a degradable modified soy protein plastic material. The degradable modified soy protein plastic material comprises, by weight, 80-90 parts of low-density polyethylene, 20-30 parts of high-density polypropylene, 5-9 parts of low-density polypropylene, 3-8 parts of corn starch, 0.5-0.9 part of bacillus licheniformis, 3-12 parts of fire retardants (oligomeric ammonium phosphate), 5-10 parts of flexibilizer (ethylene-propylene- diene-terpolymer rubber), 2-5 parts of silane coupling agents, 0.5-1 part of antioxidant (phosphite ester) and 15-20 parts of modified soy protein. The technology for preparing the modified soy protein includes the following steps that 80-90 parts of soy isolate protein and 280-290 parts of tetrahydrofuran are weighed by weight, fed into a reactor and stirred, the mixture is heated in a water bath to 80 DEG C-85 DEG C, the water bath time is 20-30 min, the mixture is stirred for 10-15 min after adding 5-6 parts of zinc acetate and then evenly stirred after adding 18-20 parts of maleic anhydride, suction filtration is carried out after the reaction is completed, and the product is aired naturally to obtain the modified soy protein.

A hydrophilized cellulose acetate tow band according to the present invention is characterized in that a hydrophilizing component having an HLB value of 16 or more is adhered onto the surface of a crimped cellulose acetate tow band, wherein the crimped cellulose acetate tow band is formed from a cellulose acetate having a substitution degree of 2.0 to 2.6 and has a total denier of 10000 to 40000 and the number of crimps of 30 to 60 crimps / inch, and wherein the amount of the hydrophilizing component to be adhered is 0.2 to 2% by weight relative to the weight of the cellulose acetate tow band. In addition to the hydrophilizing agent having an HLB value of 16 or more, a fiber oiling agent may also be adhered onto the surface of the crimped cellulose acetate tow band in an amount of 0.2 to 2% by weight relative to the weight of the cellulose acetate tow band.

The invention discloses a manufacture method of instant lotus root starch. The manufacture method comprises the following steps: (1) crushing a lotus root raw material into powder by a crushing machine; (2) adding white granulated sugar and maltodextrin to the powdery lotus root starch, and then stirring to form grains; (3) heating and drying the granular lotus root starch by a drying machine. The granular instant lotus root starch made by the manufacture method has the advantages of high dissolution speed and good water absorbability, and the brewed lotus root starch has high transparency; and the dried lotus root starch grains can be preserved for longer time.

The invention discloses a quick-acting biological organic fertilizer capable of improving agricultural soil, which comprises the following components in parts by weight: 20-35 parts of grass carbon, 15-20 parts of urea, 12-15 parts of ammonium sulfate, 5-9 parts of potassium polymetaphosphate, 1-3 parts of potassium pyrophosphate, 4-8 parts of magnesium phosphate, 0.5-1.5 parts of chitosan, 1-3 parts of phosphate, 5-9 parts of potassium dihydrogen phosphate, 4-7 parts of dipotassium hydrogen phosphate, 8-12 parts of verticicladiella powder, 0.1-0.2 part of Bacillus thuringiensis powder, 0.1-0.2 part of Aschersonia powder, 0.3-0.5 part of bacillus thuringiensis var. powder, 1-3 parts of Cortex Fraxini and 1-2 parts of stemona. The fertilizer has the advantages of favorable water absorptivity and favorable water retention property, contains comprehensive nutrient elements required by plant growth, and can improve the physical behaviors of soil and restore the soil productivity.

The present invention discloses one kind of water saving irrigation method and the set therefor. Water is first fed to the porous medium layer below the planting soil layer in the pressure of 0.01-0.1 MPa and then permeated by means of capillary action to the planting layer. The water saving irrigation set includes water pipe with water outlet pores in the wall set in the porous medium layer, antiseepage layers below and beside the porous medium layer and soil layer, all in a groove. Compared with available technology, the present invention has the advantages of no evaporation and leakage, simplicity, high water saving effect, low cost, etc.

The present invention allows for production, with a high productivity, of a water-absorbent resin having an improved relationship between absorption capacity and water-soluble polymer which are conflicting properties of the water-absorbent resin, being easily controlled for polymerization reaction, being of no odor, being less colored, and being of high absorption properties. In the present invention, acrylic acid composition is neutralized with a basic composition having an iron content of 0.2 to 5 ppm by weight (relative to a basic compound exclusive of a solvent); and then polymerizing a resultant neutralized product, the acrylic acid composition including: (i) a methoxyphenol content of 10 to 200 ppm by weight relative to the weight of acrylic acid; and (ii) at least one compound content of which is 0 to 10 ppm by weight relative to the weight of acrylic acid, the compound being selected from the group consisting of protoanemonin and furfural.

The invention discloses putty powder.The putty powder is made from, by weight, talcum powder, triple superphosphate, gypsum, bentonite, cellulose, starch glue, a lubricating agent, sierozem, aromatic, high-gluten flour, straw, bamboo residues, dracaena marginata, bamboo charcoal granule fatty alcohol-polyoxyethylene ether, pure water, magnetized water, a leavening agent, konjaku flour, a ferrous sulfate solution and pigment.The invention further provides a preparing method of the putty powder.Straw, bamboo residues and dracaena marginata are introduced into the raw materials, the putty powder is environmentally friendly and capable of improving indoor air quality, straw and bamboo residues are of a fiber porous structure and can absorb harmful gas in the air, and dracaena marginata can effectively absorb formaldehyde in the air and effectively improve air quality.

The present invention discloses a high-expansion-rate water-blocking yarn and a production process thereof. The water-blocking yarn comprises fiber, an adhesive layer formed on the surface of the fiber and a super absorbent resin layer on the surface of the adhesive layer, wherein the super absorbent resin layer is formed by drying a mixed solution of a post-crosslinked water absorption resin solution, polyethylene glycol and deionized water on the adhesive layer. The production process comprises the following steps of A, impregnating the fiber in an adhesive solution; B, drying the fiber through a hot channel, so as to enable the adhesive solution to form the adhesive layer on the fiber surface; C, impregnating the dried fiber in a water-soluble resin glue solution; D, drying the fiber through the hot channel, so as to enable the water-soluble resin to be crosslinked into super absorbent resin and further to form the super absorbent resin layer on the adhesive layer; and E, winding the dried fiber to obtain the high-expansion-rate water-blocking yarn. According to the water-blocking yarn prepared with the process, the water absorption resin is firmly combined with the fiber, the texture is soft, the water absorption rate is high, and water and moisture can be effectively prevented from invading a power cable and an optical cable, so that safe operation of the power cable and the optical cable is ensured.

The invention relates to the technical field of non-woven fabric production, in particular to antibacterial non-woven fabric. The antibacterial non-woven fabric comprises a leaky fabric layer, a non-leaky hearth layer and an antibacterial layer sandwiched in the middle, the antibacterial layer is formed by rolling and ironing of double-layer non-woven fabric and a resin layer, the resin layer is paved in the middle of the double-layer non-woven fabric, the surface of the double-layer non-woven fabric is plated with silver, the double-layer non-woven fabric and the resin layer are fixedly connected by needling, breathable micropores are evenly distributed in the outer surface of the double-layer non-woven fabric, the resin layer is made of acrylic material, one side of the double-layer non-woven fabric is plated with silver, the resin layer replaces traditional wood pulp material, the resin layer formed by resin powder is more refined and good in water absorption effect; silver platingon the surface can kill bacteria in contact; rolling and pressing prevents the entire absorption layer form forming into a mass, and high comfort is achieved; breathability is improved through needling and the breathable micropores.

The invention belongs to the technical field of sensors, and discloses a formaldehyde sensor based on an organic field effect transistor, and a preparation method thereof, used for solving the problemthat the existing formaldehyde sensor is high in lower limit of detection. The formaldehyde sensor based on the organic field effect transistor provided by the invention comprises a substrate, a gridelectrode, a grid insulation layer and an organic semiconductor layer sequentially arranged from the bottom up, wherein a source electrode and a drain electrode are connected with the upper end of the organic semiconductor layer, the organic semiconductor layer is prepared by mixing indigo blue or indigo blue derivatives with diatom ooze, and the mass percentage of the diatom ooze in the organicsemiconductor layer is 3%-20%. According to the method provided by the invention, the problem that the existing formaldehyde sensor is high in lower limit of detection is solved, and the problems thatthe existing formaldehyde sensor is poor in flexibility and prone to pollute environment are also solved.

The invention discloses a fresh keeping agent for cakes, and a preparation method of the fresh keeping agent. The fresh keeping agent for cakes consists of a slow release microcapsule wall material and a core material. Gelatinized starch and chitosan are compounded as raw materials of the microcapsule wall materials, so that the fresh keeping agent for cakes has good water absorbing capacity, thecakes can maintain good mouth feel, the structure uniformity of the cakes can also be improved, and the cakes can be loose. Components of the core material can be slowly released to the cakes, so thatthe antibacterial capacity of the cakes can be further improved, the cakes can have longer quality guarantee period, the ageing of the cakes can also be delayed, and the foam holding properties of afoaming system of the cakes can be improved. In addition, the fresh keeping agent for cakes is natural, safe and edible, has good merging properties with other cakes, and can stably exist in the cakes.

The invention discloses polyaspartic acid gel and a preparation method thereof, belonging to the technical field of organic polymer materials. An existing water absorbing material-polyacrylic polymer is high in water absorption rate but does not have biodegradability. The polyaspartic acid gel is characterized by being in a gel state and having a spatial reticular structure. The preparation method of the polyaspartic acid gel is characterized by comprising the following steps: firstly, grafting polysuccinimide with allyl amine to obtain allyl amine group-containing modified polysuccinimide; secondly, hydrolyzing the modified polysuccinimide by using NaOH to obtain modified polyaspartic acid; thirdly, crosslinking the modified polyaspartic acid with tetramethylethylenediamine to obtain the polyaspartic acid gel. The water absorption rate of the obtained polyaspartic acid gel is increased by 600 times; and the biodegradability of the polyaspartic acid gel can be verified through a burying test and particularly the residual content of the polyaspartic acid gel is only 30% after the polyaspartic acid gel is buried in soil.

The invention relates to the technical field of a circuit board cleaning accessory device, in particular to a cleaning device for a flexible circuit board. Comprises a cleaning box and four groups ofbrackets, wherein a working chamber is arranged inside the cleaning box, a feed inlet is arranged at the top end of the cleaning box, a stop cap is screwed at the feed inlet, a discharge pipe is arranged at the lower front side of the cleaning box, and a discharge valve is arranged at the discharge pipe; A liquid inlet is arrange at that top end of the container, a plurality of set of jet holes are arranged at the bottom end of the container, and a pushing plate, a pushing rod and a pushing block are also arrange. The outside of the pushing block is sleeved with a sealing layer, and the pushing rod is provided with a scale. A support platform, two group of stoppers, a buff cushion and a water-absorbing sponge block are also provided. That buffer cushion is communicate with and provided with a take-off and release pipe, and the take-off and release pipe is provided with a take-off and release valve, a magic sticker mother sticker is arranged at the top of the buffer cushion, and a magicsticker sticker is arranged at the bottom of the water-absorbing sponge block. Also included are electric motors, drive shafts and mixing blades, as well as sealing rings.

Provided is a windshield 1 suitable for preventing fogging of a glass sheet facing a light path space and for maintaining high accuracy of information acquired by an information acquisition device. A water-absorbing film 81 or an anti-fogging member 8 including the water-absorbing film 81 is disposed on a surface in contact with a light path space 41, the surface being at least one selected from a surface of a glass sheet 5 and a surface of members 61 and 62 serving the function of fixing of an information acquisition device 2 and / or light shielding for the light path space. The water-absorbing film has a saturated water absorption Ws of 1 g / m2 or more. The water-absorbing film satisfies at least one condition selected from the condition A1 that a water vapor adsorption isotherm is a downwardly convex curve at a relative humidity of 20 to 90% and the condition B1 that an increase in water absorption AbH with increasing relative humidity from 70% to 95% is more than 35% of Ws.

The invention discloses an energy-saving and environment-friendly high-strength epoxy resin concrete material, and particularly relates to the technical field of build concrete. According to the energy-saving and environment-friendly high-strength epoxy resin concrete material, main materials are prepared from, by weight, 70-100 parts of epoxy resin, 30-40 parts of a basic material, 8-12 parts ofriver sand and 10-15 parts of asbestos fibers; auxiliary materials are prepared from, by weight, 10-12 parts of corn starch, 8-10 parts of a reactive diluent, 2-4 parts of an antifoaming agent, 15-25parts of a curing agent and 6-8 parts of a toughening agent; the base material is prepared from coal gangue and limestone through mixing. According to the energy-saving and environment-friendly high-strength epoxy resin concrete material, the coal gangue and the river sand are smashed for replacing cement, the production cost is low, energy saving and environment protection are facilitated, the water absorption effect of the limestone is good, the viscosity of the material is increased through the reactive diluent and the corn starch, the antifoaming agent is added, shocking antifoaming is conducted through a vibration machine, the material is even in texture, pores are shrunk, the hardness and the strength of the concrete material are improved through ingredients of the calcium carbonateand microcrystals of the river sand, and the toughness and the resistance of concrete are improved through the asbestos fibers and the toughening agent.

The invention discloses high-water-absorption degradable pet cat litter which is characterized in that the cat litter is prepared from the following raw materials, by weight: 35-40 parts of modified straw charcoal, 0.1-0.2 parts of a mint essence, 16-18 parts of soybean residue, 0.5-0.7 parts of Kathon, 2-2.5 parts of gluten powder, 7-8.5 of polyvinyl alcohol, 6-8 parts of dextrin, 3-5 parts of carboxymethyl cellulose, 1-1.5 parts of trimethoxy silane, 4-6 parts of wood powder, and 40-45 parts of water. The product provided by the invention has a double-layer structure. The modified straw charcoal prepared from components such as plant straws is used in a base layer, such that porous absorption and water absorption performance is good. The base layer comprises cinnamon oil, such that a sustained-release antibacterial effect is provided. A slurry is coated on the surface of the modified straw charcoal, wherein the slurry comprises degradable environment-friendly components such as soybean residue, gluten powder and wood powder. The slurry also has good water-absorbing and absorption effects. The pet litter preparation method provided by the invention has the advantages of innovative process, easy operation, and low production cost. The cat litter is safe and environment-friendly, and causes low dust.