128results about How to "No harmful substances" patented technology

The invention discloses special spray polyurea elastic coating for protecting a hydraulic structure. The special spray polyurea elastic coating is two-component elastic coating subjected to field spray moulding and composed of a component A and a component B, wherein the component A consists of semi-prepolymer and 0-10 parts of diluent, wherein the semi-prepolymer is obtained by the reaction between 30-60 parts of polyisocyanate and 30-50 parts of polyether polyol all by weight; and the component B consists of 35-65 parts of amino-terminated polyether, 25-40 parts of liquid amine chain extender, 0-20 parts of pigment and 0-8 parts of assistant all by weight. In the special spray polyurea elastic coating for protecting a hydraulic structure, disclosed by the invention, the two components are quickly mixed and sprayed to the substrate surface by the spraying equipment, and quickly react to solidify into an elastic and tough coating. The coating has the functions of high anti-permeability, high strength, high elongation, water prevention, corrosion prevention, abrasion resistance, solvent resistance and the like.

The invention belongs to the field of conductive ink and discloses transparent conductive ink and a preparation method thereof. The transparent conductive ink is prepared from, by weight, 0.5-50 parts of nano silver wire dispersion liquid, 15-35 parts of poly(3,4-ethylenedioxy thiophene)-poly(styrene sulfonic acid), 5-40 parts of an organic solvent, 5-40 parts of deionized water, 1-8 parts of dimethyl sulfoxide, 0.1-5 parts of a viscosity modifier, 0.01-1 part of a pH regulator, 0.01-2 parts of a surfactant, 0.01-1 part of a leveling agent and 0.1-0.5 part of an adhesion promoter. The solid content of the transparent conductive ink is no more than 2%; due to addition of dimethyl sulfoxide in a formulation of the conductive ink, conductivity of a PEDOT / PSS and nano silver wire combined system is effectively improved; a prepared transparent conductive film has advantages of high optical transmittance, low haze and low surface square resistance and is excellent in adhesion, conductivity and environmental stability.

The invention relates to the field of water-absorbent and water-retention type slow-release fertilizer and discloses a preparation method of cellulose-based water-absorbent and water-retention type biodegradable multi-nutrient polymer slow-release fertilizer. The method comprises specific steps as follows: formaldehyde and urea react at certain temperature, and a hydroxymethylurea solution is obtained; acrylic acid, acrylamide monomers and cellulose in calculated amount are added to the other reactor, and a certain quantity of KOH solutions are added to adjust the neutralization degree of acrylic acid; initiators, monopotassium phosphate and the prepared hydroxymethylurea solution in calculated amount are sequentially added; the mixture is mixed uniformly and reacts at the certain temperature, and a viscous product is obtained; finally, the viscous product is granulated and dried, and the cellulose-based water-absorbent and water-retention type biodegradable multi-nutrient polymer slow-release fertilizer is obtained. The prepared cellulose-based water-absorbent and water-retention type biodegradable multi-nutrient polymer slow-release fertilizer has high water-absorbent and water-retention capability, and nitrogen, phosphorus and potassium elements have excellent slow release performance.

The invention discloses a light-weight aggregate shale ceramic particle and a production method thereof, which includes powdered argillaceous shale, pulverized fuel ash, additive and water; the ratio of the ingredients is that: 15-90 parts of powdered argillaceous shale, 5-60 parts of pulverized fuel ash, 1-12 parts of additive and 4-15 parts of water. The production method includes the conventional collection of argillaceous shale and the crashing process, besides, the invention also comprises the following steps: (1)screening; (2) the mixing materials is prepared; (3) the mixing material is added into a marble machine so as to produce raw meal pellets and is discharged; (4) the raw meal pellets are fed into a multi-cylinder rotary kiln for drying and sintering and finally the shale ceramic particles are formed; (5) the products of shale ceramic particles, ceramic sand and ceramic block can be obtained after the cooling and the sizing screening process by a trommel screen. The product is sintered in a multi-cylinder rotary kiln at temperature of 1150-1200 DEG C and the material property is changed and is sound-insulating, light in weight, shock-resistant, weather-resistant, and corrosion-resistant, has distinct energy-saving effect and is beneficial to generalization and implementation.

The invention discloses a production system and a making method of canna edulis vermicelli. The production system comprises a cleaning device, a grinding device and a steaming device. The making method includes: cleaning canna edulis, grinding the canna edulis into pulp, screening and precipitating to obtain starch, placing the starch in a tank, adding water into the starch, stirring to obtain liquid starch, placing the liquid starch into a storage tank, stirring again, allowing the liquid starch to flow into the steaming device for steaming to obtain starch sheets, drying, shredding and drying again, and packaging. The canna edulis vermicelli made by the method can be stored for a long term and is good in taste, people's requirements can be satisfied, and market requirements are satisfied.

The invention relates to the field of water absorption and water retention type sustained and controlled release fertilizers, and concretely relates to a crop straw-based water retention type multi-nutrient element biodegradable high-molecular sustained and controlled release fertilizer and a preparation method thereof. The method comprises the following steps: preprocessing crop straws, and reacting formaldehyde with urea at a certain temperature to obtain a hydroxymethyl carbamide solution; adding acrylic acid, an acrylamide monomer and the preprocessed crop straws into another reactor, and adding a KOH solution o adjust the neutralization value of the acrylic acid; sequentially adding an initiator, potassium dihydrogen phosphate and the prepared hydroxymethyl carbamide solution; uniformly mixing above materials , and reacting the obtained mixture to obtain a viscous product; and granulating and drying the viscous product to obtain the crop straw-based water retention type multi-nutrient element biodegradable high-molecular sustained and controlled release fertilizer. The crop straw-based water retention type multi-nutrient element biodegradable high-molecular sustained and controlled release fertilizer prepared in the invention has high water absorption and water retention ability, and nitrogen, phosphorus and potassium elements in the fertilizer have excellent sustained and controlled release performance.

The invention discloses a technology for performing high-temperature oxygen deficit treatment on hardwoods for obtaining an artificial functional rosewood. The technology is characterized in that the hardwoods of which textural features are similar to those of rosewoods are used as materials; the appearance color of the hardwoods can be in a color space distribution feature range of color parameters of rosewood type timbers after the hardwoods are subjected to high-temperature oxygen deficit and micropore treatment; meanwhile, the gas-phase adsorption performance of the timbers is improved through the high-temperature oxygen deficit and micropore treatment, so that harmful gases such as formaldehyde, benzene and xylene can be adsorbed, and a function of purifying air can be realized. The functional rosewood simulation technology has the advantages that the hardwoods have vivid appearances, the production cost is low and the efficiency is high, and products do not contain harmful substances.

Desulfurization gypsum sand pulp belongs to construction materials. The desulfurization gypsum sand pulp comprises surface layer painting desulfurization gypsum and bottom layer painting desulfurization gypsum, wherein the surface layer painting desulfurization gypsum comprises 79.6 percent of desulfurization gypsum, 0.35 percent of SC calcium sulphate retarder, 20 percent of coal ash and 0.010 percent of cellulose ether according to weight percentage; the bottom layer painting desulfurization gypsum comprises 79.6 percent of desulfurization gypsum, 0.35 percent of SC calcium sulphate retarder, 20 percent of coal ash, 0.010 percent of cellulose ether and river sand, and the ratio of the mixture of the desulfurization gypsum, the SC calcium sulphate retarder, the coal ash and the cellulose ether to the sand is 1 to 2 according to weight percentage. The desulfurization gypsum sand pulp has the advantages that the desulfurization gypsum sand pulp mainly comprises industrial residue, is suitable for decorative surface plastering to a common clay tile wall, an air-ejecting concrete wall and the like under a dry environment, the desulfurization gypsum sand pulp can be produced in factory, and convenient and fast construction can be achieved. The working performance and the physical and mechanical properties are improved, and radioactivity, hazardous material and corrosion are avoided.

The invention discloses a super-long service life self-repairing stress sensor based on a printable nano composite material and a preparation method thereof. According to the invention, nano compositematerial colloid ink with rheological properties is prepared by compounding a one-dimensional metal nanowire, a two-dimensional inorganic nanosheet, a polymer material containing host-guest interaction, a corresponding high-boiling-point solvent and the like, and the stress sensor with in-situ self-repairing capability and long cycle service life is prepared by a silk-screen printing method. In the working process of the sensor, the contained host-guest polymer material can repair defects generated inside in real time and in situ, and the service life of the material is greatly prolonged. Meanwhile, the sensor has the advantages that the working strain range is larger than 50%, the sensitivity gauge factor is larger than 100, the self-repairing capacity is high, and the anti-interferencecapacity to sweat is high. The sensor is easy to prepare and has a huge application prospect in the fields of intelligent wearable devices and the like.

The invention provides smoke-suppressing type outdoor flame retardant steel structure fireproof coating and a manufacturing method. The coating comprises an adhesive, powder, aggregate, a flame retardant, a smoke-suppressing agent and a reinforcing material. The powder except cement and the adhesive are powdered and sieved, reinforcing fiber is uniformly dispersed, and all the additives, the powder and the cement are mixed according to a ratio, activated and fully stirred. A thermal insulation property of the coating is achieved by utilization of heat reflection of added hollow microbeads and characteristics of expanded perlite. Smoke-suppressing and flame retardant properties of the coating are achieved by utilization of characteristics of the added flame retardant and the added smoke-suppressing agent. The coating has rigidity of the cement and flexibility of polymer, and coatings of the coating are low in density, good in adhesion property, water proofness and flexibility, high in adhesive force, not liable to be affected with damp, not liable to powder and not liable to shed.

A purpose of the invention is to research and develop a composite road flying dust wetting material with characteristics of convenient use, long effective action time and low cost. The invention provides a wetting type dust suppressant for road flying dust, and a preparation method thereof, and belongs to the field of road flying dust control. The wetting type dust suppressant is prepared from thefollowing raw material components in percentage by mass: 0.1-2% of sodium lactate, 0.1-6% of Span-80, 0.1-3% of glycerol, 0.1-5% of a binder, 0.5-5% of urea, 1-20% of CaCl2, 0.1-1% of a surfactant and the balance of water. According to the wetting type dust suppressant disclosed by the invention, the humectant, the moisture absorbent, the surfactant and the binder are combined, so that a certainwater content of a road surface is continuously kept, the road dust suppression effect is ensured, the material strength is high, and the action effect of the dust suppressant is improved.

The invention discloses a calcium metasilicate modified spray-coating polyurea terrace coating. The calcium metasilicate modified spray-coating polyurea terrace coating is a double-component coating which is molded by spray-coating on site; and the calcium metasilicate modified spray-coating polyurea terrace coating consists of a component A and a component B, wherein the component A comprises 40-60 parts by weight of polyisocyanates, 35-50 parts by weight of half-prepolymer obtained by reacting polyether polyol and 0-10 parts by weight of diluents; and the component B comprises 35-50 parts by weight of amine-terminated polyether, 20-30 parts by weight of liquid-state amine chain extenders, 10-20 parts by weight of calcium metasilicate, 2 parts by weight of wetting dispersants and 0-3 parts by auxiliaries. The calcium metasilicate modified spray-coating polyurea terrace coating is quickly mixed and sprayed to the surface of a basic level by virtue of spray-coating equipment, so that the coating with high adhesion and flexibility is formed by quick reaction and solidification. The coating has functions of extremely high adhesion, high abrasion resistance, high impact resistance, solvent resistance and the like.

The invention provides a cell signal guided fruit colorant. The invention belongs to the technical field of fruit coloring, and relates to a cell signal guided fruit colorant. The colorant comprises the following components: propyl dihydrojasmonate, 2-(3,4-dichlorophenoxy)triethylamine, an emulsifying agent and water. Compared with the prior art, the fruit colorant has the following advantages andeffects that 2-(3,4-dichlorophenoxy)triethylamine contained in the colorant is matched with propyl dihydrojasmonate, so that the coloring time of fruits can be effectively shortened, and a uniform coloring effect can be achieved; the colorant contains propyl dihydrojasmonate, so that the color and the quality of fruits can be effectively improved, soft fruits and rotten fruits cannot be caused, and the fruit cracking rate is effectively reduced; the colorant can effectively increase the sweetness and taste of the fruits; all the components of the colorant do not generate harmful substances, so that the colorant is safer and more environment-friendly.

The invention discloses a bread and preparation process, wherein the end product is prepared from main ingredients, water, hop fermentation liquor and auxiliary materials through mixing, fermenting and baking, the main ingredients include whole wheat flour, naked oat flour and oat flakes, the auxiliary materials include sugar, fresh milk, fruit material, cream, hen's eggs, table salt, vitamin sodium and L-lysine hydrochlorates. The preparing process consists of batchingthe main ingredients and auxiliary materials by weight, mixing, charging hop fermentation liquor, fermenting five times, charging water and baking.

The invention discloses a method for manufacturing bamboo / wood-based lining plastic doors and windows. The method comprises a step of: filling a lining material in a cavity of a polyvinyl chloride (PVC) section; and a method for preparing the lining material comprises the following steps of: preparing materials, wherein the lining material consists of the following components in percentage by mass: 45 to 55 percent of regenerated resin, 40 to 50 percent of plant fiber powder, 1 to 5 percent of plant fiber powder surface treating agent, 1 to 5 percent of lubricant and 1 to 5 percent of flexibilizer; uniformly stirring the components, and performing extrusion molding through a mold to obtain a blank material; and finishing the surface of the blank material, so that the finished blank material is fitted with the cavity of the PVC section. The bamboo / wood-based lining plastic doors and windows manufactured by the method have the characteristics of low cost, environment friendliness, high heat preservation and the like.

The invention relates to an environment-friendly artificial aggregate capable of degrading gas pollutants by photocatalysis and a preparation method of the environment-friendly artificial aggregate. The gas pollutant degrading aggregate is composed of a base material core and a photocatalysis aggregate coating layer. The production formula of the environment-friendly artificial aggregate includes a base material, photocatalysis aggregate coating pulp, organic dispersing agent and the like; the key components include a photocatalyst, functional additives (stabilizing additives, modifying additives, decorative additives), and the like. The preparation method of the environment-friendly artificial aggregate comprises the following steps of: (1), preparing base material particles; (2), preparing photocatalysis aggregate coating pulp; (3), packaging the surfaces of the base material particles; and (4), roasting and preserving the heat. The environment-friendly artificial aggregate is strong in practicability, energy-saving and environment-friendly and high in operability of the implementation method. The product is good in mechanical performances, safe and non-toxic, corrosion resistant, free of secondary pollution, capable of degrading and purifying main harmful substances of the gas pollutant under the excitation of natural light and efficient and lasting in purifying capacity. Besides, the environment-friendly artificial aggregate can be used as the material for being extensively applied to constructing the facilities including a road, a building, an ornament and the like rich in gas pollutants.

The invention discloses a microwave modified inorganic cementing material, and a preparation method and an application thereof. The microwave modified inorganic cementing material is prepared from, byweight, 20-50 parts of sulphoaluminate cement, 20-50 parts of water, 20-50 parts of silica powder, 5-15 parts of a sodium silicate solution, 0.1-1.5 parts of cellulose, 0.1-2 parts of lithium oxide,1-2 parts of industrial latex powder and 0.1-3 parts of air entraining agent. The inorganic cementing material has the advantages of simple raw material components, low cost, no harmful substances, environmental friendliness and remarkable reinforcing effect; the inorganic cementing material can be used for preparing wood boards, so the wood boards have the characteristics of environmental friendliness, no formaldehyde, no pollution, flame retardance and fireproofing, the national building material A1-level fireproof standard is met, the strength of the boards can reach or exceed the related requirements of wood density boards, furniture boards and bakelite boards, and boards have the characteristics of light weight and high strength; and the material can also be used for preparing building thermal insulation materials, lightweight cement partition board cores, floor heating base materials and the like, and has the characteristics of fireproofing, soundproofing, light weight, high strength, environmental friendliness and low cost, and the product strength is remarkably improved especially under a microwave irradiation condition.

The invention discloses a silicon steam corrosion resistant coating and a preparation method thereof. The coating is prepared from the following components in percentage by mass: 15-35% of hexagonal boron nitride, 1-10% of ethanol, 1-10% of glycerol and 50-80% of a diluent, wherein the total percentage of the components is 100%. The coating can be utilized for protecting a graphite crucible under the atmosphere of high-temperature silicon steam at 1700 DEG C or higher, so that the surface of the graphite crucible can be protected to a great extent, and the corrosion caused by the silicon steam is reduced; the coating can further be utilized for the surfaces of a heat preservation barrel, a heater and other main graphite toolings in addition to the crucible; moreover, the coating has the characteristics of being simple in technical process, low in cost, suitable for popularization and application, high in high-temperature property and harmless to a human body.

The invention discloses a production process for dried lotus root vermicelli. The production process sequentially comprises the following steps: washing, crushing, separating, rinsing, mixing pulp, steaming, drying, carrying out powder chopping, carrying out secondary drying and packaging. On the basis of a traditional production process of the dried lotus root vermicelli, an advanced food processing device and an advanced food process method are utilized and dried lotus roots are directly used as raw materials; in a process of producing the dried lotus root vermicelli, no additive is added; the dried lotus root vermicelli prepared by the process can be stored for a long time, has a transparent and ordered appearance, has a pure taste and a unique flavor, and is fragrant and smooth.

The invention discloses amino acid toothpaste. The amino acid toothpaste, in relation to the total weight, is prepared from 10 to 50 weight percent of friction agent, 5 to 40 weight percent of humectant, 0.1 to 6 weight percent of thickening agent and 0.1 to 25 weight percent of amino acid or salt thereof served as a surfactant. The amino acid is N-lauroyl-L-alanine; the salt of the amino acid isN-lauroyl-L-alanine salt which is N-lauroyl-L-sodium alanine and / or N-lauroyl-L-potassium alanine. The invention provides the toothpaste which selects the amino acid as the surfactant; the toothpastehas no chemical damage and has the efficacy of mildly and efficiently cleaning, removing halitosis, eliminating gum spots, eliminating inflammatory and relieving pain; the amino acid toothpaste is suitable for all kinds of people.

The invention provides an environment-friendly high molecular self-adhesive waterproof rolled material, and relates to the field of construction materials. A preparation method comprises the followingsteps: putting phenolic resin, a plasticizer and a heat stabilizer into a hot mixer to be uniformly stirred, and putting extending oil, light calcium carbonate, an antioxidant, an anti-ultraviolet agent and thermoplastic polyurethane to be uniformly stirred; putting the obtained material into an extruding machine, and performing rolling, pulling, winding and shaping on the extrudate to obtain a base layer of the waterproof rolled material; adding phenolic resin, fibrous protein, lignocellulose, ethyl acetate, polyisobutylene, sodium alginate, tetraethyl orthosilicate and modified nitrile rubber to a high-speed mill to be mixed so as to obtain adhesive paste; and compounding the adhesive paste and the base layer of waterproof rolled material, and arranging an anti-sticking film on a self-adhesive layer formed by the adhesive paste so as to obtain the environment-friendly high molecular self-adhesive waterproof rolled material. The base layer of the waterproof rolled material and the adhesive layer are made from environment-friendly materials, and the waterproof rolled material does not have harmful substances and has good use effects.

The invention relates to the field of tea, and particularly relates to a making method of a cleaning-free Pu'er tea. The making method comprises the steps: after charging Pu'er raw tea or Pu'er tea in a centrifugal container, washing for 2-20 min with 30-150 MPa high-pressure water; soaking the Pu'er raw tea or Pu'er tea in the centrifugal container for 10-60 min; starting the centrifugal container for carrying out rotary cleaning on the Pu'er raw tea or Pu'er tea for 2-20 min; draining water and then stopping the operation of the centrifugal container, rinsing, and washing the Pu'er raw tea or Pu'er tea for 2-10 min for second time by using the high-pressure water; starting the centrifugal container for dewatering the Pu'er raw tea or Pu'er tea until the water content of the tea is less than 25 percent; and naturally airing. The making method is simple and easy to operate, suitable for clean and large-scale production, and good in technical effect; the made cleaning-free Pu'er tea is clean and sanitary, high in quality, sweet and tender in taste, stable in quality, and free from foreign flavor, peculiar smell, dust, powder, residues, harmful substances and the like.

The invention relates to an instant coarse food grain cereal product and a making method thereof. The instant coarse food grain cereal product is made from the following coarse food grains in parts byweight of 5-10 parts of black beans, 5-10 parts of small red beans, 7-12 parts of lentils, 0-10 parts of black rice, 4-10 parts of red polished round-grained rice, 2-10 parts of oat, 4-12 parts of buckwheat, 5-15 parts of panicum miliaceum, 9-13 parts of polished glutinous rice, 10-20 parts of corn grits, 0-5 parts of white sesame seeds, and 0-5 parts of black sesame seeds. The method for makingthe instant coarse food grain cereal product is simple, the made instant coarse food grain cereal product has the characteristics of being free from rinsing and soaking and capable of being cooked with rice together before being eaten at the same time, besides, reserves original appearance and nutrient components of the coarse food grains, is free from harmful substances, and has good grain fragrance and mouth feel.

The invention provides a soundproof panel for an automobile. The soundproof panel comprises a first panel, a second panel, and soundproof cotton arranged between the first panel and the second panel, wherein keels are arranged on the first panel; the keels and the first panel are formed by one-time injection; the keels form a grid-shaped structure in a criss-cross manner; each grid shape forms a soundproof unit with a hollow structure; the soundproof cotton is filled in the soundproof units. The soundproof panel further comprises a connection device used for connecting the first panel with the second panel. The soundproof panel provided by the invention has the following beneficial effects that: the interior noise of the automobile can be effectively lowered while the weight and the cost of the automobile are not obviously increased, with no changes on the original panel structure of the automobile, and the purpose can be realized only by adding one working procedure; the soundproof panel is low in machining cost, simple in structure, easy to detach, convenient to repair, capable of updating a soundproof effect by replacing an interior soundproof layer material, free from generating hazardous substances by using the soundproof material, and environment-friendly and safe.

The invention provides a manufacturing process of bamboo woven products, comprising the following steps: preparing a plant dyeing agent; S2: soaking the bamboo to be dyed in the plant dyeing agent; ‑48 hours; take out the bamboo to be dyed after step S2, and wash it with 22°C water; place the bamboo to be dyed after step S3 to dry in the shade at 22°C for 24‑48 hours; repeat step S2‑S4, at least More than two times, a semi-finished product is obtained; the surface of the semi-finished product is evenly brushed with wood wax oil to obtain a finished product. The manufacturing process of a bamboo woven product provided by the present invention does not destroy the internal fiber structure of bamboo through low-temperature production, reduces the risk of cracking and deformation of bamboo, is more conducive to dyeing fastness, and dyes and fades more uniformly. Then use wood wax oil to protect the outer surface of bamboo to reduce the problem of dye fading. And the use of plant dyeing, the entire process is environmentally friendly and will not produce harmful substances to the human body.

The invention discloses a sandwich-type summer sleeping mat based on summer sleeping mat special paper. The summer sleeping mat comprises a sandwich-type summer sleeping mat structure, the sandwich-type summer sleeping mat structure comprises an upper surface layer, a lower surface layer and a three-dimensional spacing layer which is connected with the upper and lower surface layers, the upper surface is a summer sleeping mat surface which is formed by the weaving by adopting a weaving bed after the summer sleeping mat special paper is cut into strips and twisted into paper filaments, the lower surface is formed by the weaving by adopting a polyurethane fiber warp weaving bed, the three-dimensional spacing layer is a MOLO yarn three-dimensional weaving layer, the upper surface layer, the lower surface layer and the three-dimensional spacing layer are connected through the stitching or weaving of the paper filaments, the paper filaments are prepared after the summer sleeping mat specialpaper is cut into strips and twisted into filaments, 100% imported bleached sulfate softwood pulp is adopted by the summer sleeping mat special paper, and the whiteness of a pulp board is greater than 85%. The summer sleeping mat has the advantages that the structure is simple and practical, the functions of ventilation, air permeability, sweat absorbing and recycling can be achieved, and the environment is protected and not polluted.

Then invention discloses a material used for making simulation cakes. Characteristics are that: the material comprises polyvinyl acetate modifying emulsion, paraffin, and cake emulsifier; and glycerin may also be contained. Beneficial effects of the material are that: the material comprises no toxic ingredient, is odorless, can be preserved for as long as 10 years in a dry environment, and is easy to decompose naturally.

The invention discloses a heat-not-burn plant particle with a damp-proof layer and a preparation method of the heat-not-burn plant particle. The heat-not-burn plant particle is prepared from the following components in parts by weight: 40-80 parts of plant particles, 10-40 parts of fragrant substances, 10-50 parts of a smoke agent and 10-20 parts of the damp-proof layer. The preparation method comprises the following steps: taking medicinal and edible plants, crushing, sieving, granulating and drying to obtain plant particles; mixing the plant particles with a fragrant substance and a smoke agent, uniformly spraying the moisture-proof coating liquid on the surfaces of the plant particles, and drying at low temperature to obtain the heat-not-burn plant particles with the moisture-proof layer. The obtained heat-not-burn plant particles are good in moisture-proof effect, do not affect aerosol release, are simple in process and have certain industrial application value, and a coating material is easy to obtain.