267results about How to "Fast drying" patented technology

This invention relates to cleaning organic polymer-metal composite material from screening masks and associated accessories used for printing a conductive paste pattern on microelectronic components, such as, for example, ceramic green sheets in the production of semiconductor packaging substrates. More particularly, this invention is concerned with the aqueous cleaning of screening paste residue from masks and other paste screening and processing equipment using water-based alkaline cleaning compositions comprising an organic quaternary ammonium hydroxide as the primary basic active ingredient to provide a more environmentally friendly alternative to non-aqueous organic solvents-based cleaning.

The invention discloses environment-friendly water-based printing ink suitable for cigarette filter printing. The printing ink takes water as a main solvent and has innocuity, and no peculiar smell; and the adhesive force, the drying property and the water resistance of the printing ink can meet the printing and product requirement. The preparation raw material components comprise: a high acid value acrylic resin amination liquid (A), which is a water-soluble resin liquid made from high acid value acrylic resin through amination, wherein the high acid value is in the range of 140-280 mg KOH/g, preferably in the range of 180-260 mg KOH/g, and most preferably in the range of 215-225 mg KOH/g, and an acrylate copolymer emulsion used as an film forming agent. In a typical embodiment, the raw material components comprises the high acid value acrylic resin amination liquid (A), the acrylate copolymer emulsion (B and C), nontoxic and harmless inorganic and organic pigment (D), superfine light calcium carbonate used as a filling material, water used as a main solvent, small amount of alcohol solvent and functional additives. The printing ink prepared is suitable for intaglio printing, and has the characteristics of environmental friendliness, high drying speed, resistance to wet friction, high adhesive force, good printability and the like.

The invention relates to a method for preparing a film-coating fresh-keeping fruit wax for fruits and vegetables, which mixes red lac, morpholine, propanediol and ammonia according to weight ratio, and comprises the following steps: emulsifying the mixture for 20 to 40 minutes at an emulsifying temperature of between 113 and 117 DEG C, and stirring the mixture at a speed of between 750 and 1,050 revolutions per minute; when the temperature of the solution is reduced to 60 DEG C, adding natamycin, sec-butylamine and thiabendazole L according to the following proportions; and after dispersing the mixture, reducing the temperature to 30 DEG C, taking the mixture out, and performing high-pressure homogenization on the mixture to obtain the film-coating fresh-keeping fruit wax for fruits and vegetables. The fresh-keeping fruit wax is a dark brown semi-transparent water-soluble emulsion, cannot be hardened after coating, is easy to fall off, has a quick drying speed and moderate viscosity, can perform fruit waxing through a full automatic wax-polishing machine, is bright in color and beautiful, and has lasting brightness. The concentration of the natamycin used by the fresh-keeping fruitwax has only 10<-6> order of magnitude and is in accordance with the standard of the maximum residual quantity in food stated by the national 'use sanitation standard of food additives'; therefore, the film-coating fresh-keeping fruit wax for fruits and vegetables is a safe and environment-friendly fresh-keeping material.

The invention relates to a low-temperature quick-drying solvent-free epoxy coating for a drinking water tank and a preparation method thereof, wherein epoxy resin, a reactive diluent, a dispersant, a silane coupling agent, a thixotropic additive, titanium dioxide, talcum powder, a defoamer, a modified aromatic amine curing agent and a catalyst are used for constituting an A component and a B component; when in use, the A component and the B component are mixed according to the mixing weight ratio of 7.5/1-8.5/1, the mixing viscosity under the low-temperature condition of 10-15 DEG C is 3000-5000mPa.s, the operable time is 1-2 hours, the semi-hardening time is 6-8 hours, and the hardening time is 20-24 hours. The epoxy coating has excellent coating constructability and drying property of acoating film. The epoxy coating is solvent-free and non-toxic, has low viscosity under the low-temperature condition of 10 DEG C, and ensures normal construction can be carried out without taking heating and thermal insulation measures; simultaneously, the drying speed of the coating film is fast, and the requirement of low-temperature construction process in winter can be completely met. The coating is particularly applicable to drinking water tanks of naval ships, as well as coating protection of the inner walls of large storage tanks in the food industry under the low-temperature condition.

This invention relates to fast-drying RF inkjet composition and apparatus for inkjet printing RF inkjet compositions. The compositions and apparatus are useful for inkjet printing onto a variety of media including both porous and non-porous substrates. The RF inkjet composition desirably includes RF susceptors combined with polar carriers which may be activated by RF energy to generate heat within the RF inkjet composition, resulting in enhanced evaporative drying.

The invention provides a water-based paint applied in aluminum-plastic plates and a color steel coiled material. The water-based paint comprises the following components by weight: 30-55 parts of water soluble acrylic resin, 5-10 parts of water-based polyurethane resin, 4-10 parts of water soluble amino resin, 0.1-2 parts of a water-based dispersion agent, 0.1-2 parts of a water-based leveling agent, 0.1-2 parts of a water-based defoaming agent, 20-30 parts of water for the paint, 3-8 parts of an adhesion promoter, and 0.5-2 parts of a nano fumed silica slurry. The water-based paint has the main volatile which is water, thereby having no harm to the environment and operators. The water-based paint has the product quality which is equal to or slightly higher than the coating effect of an oily product. Moreover, the water-based paint has fast drying speed, can satisfy continuous and high-speed production in aluminum-plastic plate industry, and does not affect the production efficiency. Compared with an oily acrylic amino stoving varnish, the water-based paint has excellent solvent resistance, and has quite good market popularizing value.

The invention discloses a method for drying oil-tea camellia seed. Harvested fresh oil-tea camellia seed is used as a raw material and is subjected to stack retting and drying, so that the oil-tea camellia seed is controlled to meet the requirement of storing moisture safely at the room temperature. The oil-tea camellia seed dried by adopting the method of the invention has the advantages of high quality, high oil yield, good quality of crude oil, good storage performance, long storage time, capability of reducing the oxidation of fat in the storage process of the oil-tea camellia seed and small variation of indexes such as peroxide value, acid value and the like in the storage process of tea oil. The method has the advantages of simple process, high drying speed, good drying effect and easy control of drying condition.

The invention discloses an opening and closing control method of a cover plate of a water tank type cleaning machine. The method is characterized in that the cover plate is opened or closed through a driving mechanism; the opening and closing control method comprises the following steps: (1) detecting temperature in a water tank body after a cleaning program of the water tank type cleaning machine is ended, and controlling the driving mechanism to open the cover plate to radiate and cool after the temperature is at a first preset temperature value; (2) keeping the cover plate in the open state for a certain time continuously, continuously detecting the temperature in the water tank body, and controlling the driving mechanism to close the cover plate when detecting that the temperature is reduced to a second preset temperature value. By controlling the opening and closing time and angle of the cover plate, water vapor in the cleaning machine can be timely discharged after the cleaning program of the cleaning machine, so the drying speed of the dishes and the cleaning machine is quickened; meanwhile, by using an automatic control mode, manual operation of a user is not required, and the safety of use is improved.

The present invention provides a flexographic plate water-based ink for high-speed printing and a preparation method thereof. The flexographic plate water-based ink comprises the following components by weight: 30-40 parts of a non-film forming acrylic emulsion, 5-10 parts of an acrylic film-forming emulsion, 15-0 parts of an acrylic resin solution, 30-40 parts of an aqueous paste, 1-3 parts of polyethylene wax, 1-2 parts of a film-forming aid, 0.3-1 part of a leveling agent, 0.1-0.5 part of a defoamer, 3-7 parts of deionized water and a pH modifier. The non-film forming acrylic emulsion is an acrylic emulsion with Tg value no less than 90 DEG C, the acrylic film-forming emulsion is an acrylic emulsion with Tg value less than 30 DEG C, the content of the pigment in the aqueous paste is 40-45%, and the pH modifier reaches pH value of the flexographic plate water-based ink of 8-9.5. The water-based ink can well adapt to printing of high-speed satellite-type press, and has good re-solubility and excellent leveling and trapping effect; and the printed product has high color saturation, bright color and good gloss; therefore, the water-based ink has wide range of applications.

The invention provides a method for preparing phenolic resin from phenols residues serving as raw materials and belongs to the technique field of the treatment and comprehensive utilization of phenols residues. In the method, based on the effective functional groups of various compounds in phenols residues, a series of chemical reactions are performed to convert the phenols residues into the phenolic resin which can be industrially and directly used for preparing corresponding coatings; and thus, the zero waste emission of phenols product production is realized, the problem of phenols pollution is solved radically, and the effect of comprehensively controlling and recycling waste is achieved. Meanwhile, the quality of the produced coating products is higher than that required by the conventional industrial standards, but the production cost is lower than those of conventional coating products. The method has the characteristics of simple production process, low equipment investment requirement, high practicability, low comprehensive cost, and obvious economic benefit.

The invention provides an emulsion adhesive for paper-product packaging and a preparation method thereof. The method comprises: Polyvinyl alcohol, instant starch, polyvinyl acetate emulsion, water and kaolin, swell soil, titanium dioxide pigment, calcium carbonate, rubberlith and sodium hexametahposphate are used as main materials; the solid polyvinyl alcohol is dissolved with the water, later dispersed uniformly with the polyvinyl acetate emulsion, alcohol ester and an antiseptic and grinded into a glue liquid of 160 to 200 meshes; then after the kaolin, the swell soil, the titanium dioxide pigment, the calcium carbonate, the rubberlith, the sodium hexametahposphate and the instant starch are uniformly mixed, water is added for stirring the mixture into a uniformly mixed material; the glue liquid and the uniformly mixed material are dispersed together; moreover, a titanium ester coupling agent is added for obtaining the emulsion adhesive after being uniformly mixed. The emulsion adhesive is friendly to the environment, has fast drying speed, high intensity and low cost, is especially suitable to the sticking operation of high-grade paper boxes, has simple preparation technique and considerable economic benefit as well as has excellent market prospect.

The invention discloses a preparation method of waterborne alkyd enamel. The preparation method comprises the following components in percentage by mass: 45%-55% of waterborne alkyd resin, 10%-15% of rutile type titanium dioxide, 0.3%-1% of carbon black, 10%-15% of precipitated barium sulphate, 0.2%-0.5% of a waterborne dispersing agent, 0.1%-0.2% of a waterborne antifoaming agent, 0.1%-0.2% of a waterborne foam inhibitor, 1%-2% of hydrated magnesium silicate, 0.8%-1.2% of waterborne drier, 0.2%-0.4% of a waterborne anti-skinning agent, 0.5%-1% of a water-based thickener, 2%-4% of a neutralizer, 2%-4% of a hydrotropy agent, 2%-4% of a coalescing agent, 0.1%-0.2% of a waterborne flatting agent and 8%-9.6% of deionized water. The method comprises the following technological steps: stirring the waterborne alkyd resin evenly, and testing and adjusting the pH value; diluting the foam inhibitor with the deionized water, then adding to a production cylinder, stirring, and adding the rutile type titanium dioxide and the like, dispersing and then grinding; adding a compound drier and the like, and stirring; adjusting the viscosity with the deionized water; and adjusting the pH value of the product with the neutralizer. The waterborne alkyd enamel has the advantages of being high in drying rate, high in glossiness, excellent in weather fastness, excellent in salt water resistance, and free of a blistering or rusting phenomenon after being soaked in a 3% sodium chloride solution for 480 hours.

The invention relates to the field of medical auxiliary instruments, in particular to a multi-functional drying box. The drying box comprises a box body, a vertical partition plate is fixedly arranged in the box body, bracket tracks are fixedly arranged on the inner wall of the box body and the partition plate, a bracket is connected with the bracket tracks in a sliding mode, and an ultraviolet lamp tube is further arranged on the partition plate; a hook and an LED lamp are arranged on the upper portion of the box body, the LED lamp is connected with a control device, a box door is further arranged on the box body, the lower portion of the box body is connected with a hot air device, an air vent is formed in the lower portion of the inner wall of the box body, a drain channel is formed in the bottom in the box body and communicated with the outside through a drain pipe. The multi-functional drying box is simple in structure and reasonable in design, and the drying efficiency is improved through the structural innovation of the bracket and additional arrangement of circulating air set equipment.

The invention discloses a fluorescent transparent coating capable of realizing full colors. The fluorescent transparent coating comprises quantum dots and ultraviolet (UV) curing transparent ink. A method for preparing the fluorescent transparent coating comprises the following steps of: adding the quantum dots and the UV curing transparent ink into a charging bucket, and stirring by using a dispersion machine for 30 to 120 minutes; adding zirconium oxide beads of which the grain diameters are 0.2 millimeter, and grinding for 3 to 8 hours; printing the ground UV curing transparent ink containing the quantum dots on a base material by using an inkjet printer to form a target image; and irradiating by using ultraviolet light while printing the target image or after the target image is printed. According to the fluorescent transparent coating, the quantum dots which can emit fluorescent light of different wavelengths and the UV curing transparent ink are combined to realize full colors, and the image is printed by using the UV curing transparent ink through the inkjet printer; and the method is simple, high in efficiency and flexible and can be used for large-area inkjet, and the coating is high in curing speed and environment-friendly.

A process for preparing the powdered fruit juice from dahlia includes such steps as clearing the chosen dahlia fruit, squeezing, beating, proportionally adding dextrin, stirring, centrifugal spray drying for 5-40 S, and packing in low-humidity room. It features no damage to smell and nutrients.

The invention relates to an alloy putty which comprises main body ash and curing agent by the weight ratio of 100:2, wherein the main body ash comprises (by weight ratio) unsaturated polyester resin 100, accelerating agent 2-4, epoxy resin 4-6, carboxyl-terminated butadiene-acrylonitrile 0.5-2, pigment 5-8, filling material 80-120, while the curing agent comprises (by weight ratio) initiating agent 100, pigment 2-4, filling material 4-6.

The invention relates to a high-performance aqueous epoxy anticorrosive paint for steel structures, which is characterized in that the paint comprises a part A and a part B, wherein the mass ratio of the part A to the part B is 100: (30-40); the part A comprises the following components in percentage by weight: 20 to 45 percent of aqueous epoxy resin, 5 to 10 percent of rust-proofing pigment, 5 to 20 percent of tinting color, 20 to 45 percent of packing, 0.2 to 0.5 percent of thickener, 0.2 to 2 percent of flatting agent, 0.5 to 2.5 percent of other auxiliaries, and 20 to 40 percent of softened water; and the part B comprises the following components in percentage by weight: 20 to 40 percent of aqueous epoxy curing agent, 1 to 5 percent of neutralizer, 5 to 20 percent of aqueous cosolvent and 25 to 50 percent of rust-proofing pigment. The anticorrosive paint provided by the invention has the advantages of no environment pollution and high drying speed, and is safe and convenient for application.

The invention belongs to hot melt adhesive, and in particular to hot melt adhesive with the characteristics of strong adhesive force, high drying speed, small consumption, good heat stability, aging resistance, acid and alkali resistance, no pollution and adaptability to the production and packaging requirement of a high-speed automatic production line and a preparation method of the hot melt adhesive. The hot melt adhesive comprises following raw materials in part by weight: 25 to 33 parts of ethylene-vinyl acetate copolymer, 18 to 22 parts of sasol synthesized wax, 45 to 55 parts of tackifying resin, 3 to 5 parts of plasticizer and 0.3 to 1.5 parts of anti-aging agent 1010. The hot melt adhesive has the advantages of strong adhesion force, high drying speed, small consumption, good heat stability, aging resistance, acid and alkali resistance, no pollution and adaptability to the production and packaging requirement of a high-speed automatic production line.

The invention discloses a method and device for drying easily-dried wood. The method for drying the easily-dried wood comprises the steps of wood accumulating, temperature rise preheating, temperature rise drying, constant-temperature drying, temperature reducing drying and cooling drawing. The device for drying the easily-dried wood comprises a drying kiln body, and a drying kiln body gate is arranged on the drying kiln body. The device for drying the easily-dried wood further comprises a ventilation and dehumidification system, a heating system, a detection and control system and a saturated steam generator. A wood accumulating area is arranged in the drying kiln body. An air inlet capable of being opened or closed is formed in the drying kiln body. The ventilation and dehumidification system, the heating system and the saturated steam generator are all communicated with the wood accumulating area. The detection and control system is used for detecting drying parameters in the drying kiln body and electrically connected with the ventilation and dehumidification system, the heating system, the saturated steam generator and the air inlet. The method and device have the beneficial effects of being high in drying speed, low in energy consumption, small in pollution to environment and the like.

The invention provide degradable adhesive for polylactic acid cigarette tows, wherein the water-based polyurethane adhesive can be prepared through three stages, namely prepolymerization, neutralization and salt formation, and dispersion and chain-extension, and can be biologically degraded. The adhesive preparation method comprises the following steps: (1) prepolymerization, in which, 60 to 75 percent of hydroxyl monomer, 2 to 10 percent of hydrophilic monomer and 15 to 25 percent of isocyanate monomer react through gradual polymerization, 1 to 5 percent of solvent is added into the mixture according to the viscosity of a reaction system so as to generate polyurethane prepolymer; (2) 2 to 7 percent of neutralizer is added into the polyurethane prepolymer for neutralization and salt formation, and water which is 1 to 6 times of the solvent is added into the mixture for dispersion of the prepolymer; and (3) 1 to 6 percent of a chain extender is added into the mixture to form the waterborne polyurethane adhesive. The synthesized adhesive is applicable to the adhering of polylactic acid cigarette tows, and can produce the polylactic acid filter tip bar with biological degradation, environmental protection, non toxicity and excellent adhering performance.

The invention discloses a microwave dryer, mainly comprising a box body 1, a microwave generator 2, a control main board 3, a fan 4, an air inlet 5, a humidity probe 6, a temperature probe 7, a control panel 9, a clothes hanger 9 and a water-receiving tray 10, wherein the box body 1 is made of stainless steel; a top plate 11 is made of stainless steel mesh; the top plate 11 is provided with a flow guiding cover 12 which is provided with an exhaust fan 13; and the diameter of each grid of the stainless steel mesh is less than 1/2 of the length of the microwave generated by the microwave generator 2. After the structure is adopted, the microwave does not leak, large amount of water vapor generated when the microwave dryer works can be evaporated outward through the grids of the stainless steel mesh at the top part of the box body, is suitable for treating large-batch articles of towels, bath towels, bed sheets and the like without containing metallic substances, is suitable for industrial and commercial purposes and has fast treating speed and high efficiency.

The invention discloses a double-cone rotary vacuum drier with cutters. The double-cone rotary vacuum drier comprises a support, a transmission device and a tank body. The tank body is arranged on the support through a left main shaft and a right main shaft on the two sides, the transmission device is connected with the left main shaft or the right main shaft of the tank body, and the left main shaft and the right main shaft are hollow main shafts and communicated with the interior of the tank body. The left main shaft is connected with a hot water inlet pipe and a hot water outlet pipe, and a vacuumizing pipe is arranged in the right main shaft. Smashing cutter sets are arranged in the tank body and connected with a cutter driving device. According to the double-cone rotary vacuum drier, the two smashing cutter sets are arranged in the tank body and used for smashing blocks in the drying process of materials and loosening the materials to improve permeability when the materials are turned over vertically in the tank body, and therefore the drying speed of the materials is increased, the drying efficiency is improved, and uniform drying is achieved.

The invention provides a printing ink composition containing starch. 2 to 2.5 weight parts of starch of which the fineness is 8 to 12 microns is added into 100 weight parts of printing ink; and the printing ink containing starch comprises the following components in percentage by weight: 9 to 15 percent of pigment, 40 to 45 percent of ester gum, 4 to 8 percent of acrylic resin, 18 to 20 percent of linseed oil or soybean oil, 20 to 25 percent of isopropanol and ethyl acetate mixture, and 3 to 8 percent of aid. Due to the adoption of the technical scheme, the obtained printing ink composition can effectively accelerate the drying speed of ink, solve the problems that printing matters are adhered to each other, and ensure that a printer has a normal printing speed; a product can be dried completely, and the phenomenon of set-off and the phenomenon that the products are adhered to be dimmed can be avoided; the product is high in glossiness; and the printing ink composition has the advantages of simple component, convenience in preparation and obvious effect.

The invention belongs to the technical field of wood treatment, and particularly relates to a rosewood treatment method. Boiling, steaming and vacuum drying processes are designed according to wood characteristics and climate differences of various regions; meanwhile, secondary drying of semi-finished products is added on the basis of primary drying, fundamentally it is guaranteed that furniture cannot crack or deform, and the common problem that rosewood furniture is prone to deform and crack is solved from the source.

The invention provides low-gram-weight digital ink jet transfer printing base paper and a production method thereof, and discloses the low-gram-weight digital ink jet transfer printing base paper which comprises base paper and a thermal transfer coating, wherein production raw materials comprise bleached chemical hardwood pulp, bleached mechanical bamboo pulp, precipitated calcium carbonate, glyoxylic acid modified polyacrylamide, an internal sizing agent and other functional additives; the coating comprises micron silica, nano calcium carbonate, crosslinked chitosan and an alkyl ketene dimer(AKD), and the base paper has a certain weight of 25-40g/m<2>. According to the invention, the crosslinked chitosan and the alkyl ketene dimer are matched with micro-nano inorganic pigments to be used, and the micro-coating technology is adopted to produce the low-gram-weight heat transfer printing base paper, by use of the micro-nano coating with a high specific surface area, absorption of high ink jet amount of ink can be achieved by a small coating amount, and the situation that the ink cannot be transferred to a fabric after penetrating into the base paper can be prevented, so that the ultra-low-gram-weight heat transfer printing base paper has the advantages of high drying rate, high transfer rate, uniform transfer printing, economy, environmental protection and the like.

An insect composition comprising at least one fragrance capable of repelling insects and at least one non-fragrance insect repellant which is soluble in the fragance. In preferred embodiments the composition also includes an absorption substrate carrier. These compositions provide effective contact and area repellency while maintaining a pleasant aroma.

The invention relates to the field of alkyd resin, in particular to a preparation method of odor-less fast-dry alkyd resin. The odor-less fast-dry alkyd resin comprises, by weight, 9-15 parts of fattyacid, 5-12 parts of castor oil, 20-28 parts of polyhydric alcohols, 24-33 parts of organic acid, 2-5 parts of reflux solvents, 0.05-0.2 part of antioxidant additives and 23-27 parts of diluting solvents. The preparation methods includes: by a step-by-step feeding method, subjecting fatty acid, a part of organic acid and a part of polyhydric alcohols to esterification reaction, and adding in castor oil, the rest organic acid and the rest polyhydric alcohols to perform esterification reaction, so as to obtain the odor-less fast-dry alkyd resin. The alkyd resin has the advantages of fast drying,high solvent release property, less odor, high hardness, scratch resistance and the like, further has excellent flexibility without adding of other flexible resin and accordingly can improve production efficiency and have high competitiveness in application of modern furniture factories.

Nanometer polyurethane flame-retardant waterproof coating and a preparing method thereof are provided. The coating includes, by weight, 40-50 parts of polyether polyol, 16-32 parts of methylene diphenyl diisocyanate, 1-2 parts of trimethylolpropane, 10-20 parts of hydroxymethyl acrylate, 30-40 parts of a plasticizer, 20-40 parts of modified magnesium aluminum hydrotalcite, 10-20 parts of modifiedcalcium carbonate, 10-20 parts of nanometer magnesium hydroxide, 0.6-1.4 parts of a catalyst, 0.6-1.4 parts of a defoamer and 30-40 parts of a solvent. The modified magnesium aluminum hydrotalcite isprepared from magnesium aluminum hydrotalcite, monohydroxy polydimethylsiloxane and a silane coupling agent. The preparing method includes 1) adding the polyether polyol, the hydroxymethyl acrylate, the plasticizer and the filler into a reaction kettle, stirring and mixing the mixture, and performing vacuum drying hydration; 2) adding the methylene diphenyl diisocyanate for reaction; 3) adding thetrimethylolpropane; and 4) adding the rest materials. The coating is high in drying speed and excellent in flame retardant performance.

The invention belongs to the field of water-based paints, and discloses a high-resistance inorganic-organic composite modified acrylic epoxy ester resin. The high-resistance inorganic-organic composite modified acrylic epoxy ester resin is synthesised from the following raw materials in parts by weight: 30-70 parts of epoxy ester, 5-50 parts of acrylic monomers and 5-25 parts of silica gel, wherein the epoxy ester is prepared by carrying out a catalytic reaction on 40-70 parts of epoxy resin and 20-60 parts of unsaturated fatty acid; the acrylic monomers comprise 20-60 parts of vinyl monomers and 40-70 parts of acrylic acid monomers; the silica gel is prepared by reacting 10-50 parts of an organic silicon intermediate, 5-50 parts of a silane coupling agent, 20-70 parts of a cosolvent, 0.2-5 parts of a pH value regulator and 5-15 parts of water; the nanoscale silica gel is capable of improving the resistance and dryness of a paint film; secondary crosslinking is formed along with the changes of a pH value, thus increasing the crosslinking density after film formation; the structure taking the nanoscale silica gel as a core and the organic resin as a shell is capable of improving the stability of silicon hydroxyl; the water-based epoxy ester resin is capable of reducing a VOC content.

The invention discloses a preparation method for passion fruit substitutional tea. The preparation method comprises the following steps: selecting fruits, soaking the cleaned passion fruits in Na2CO3 solution with a concentration of 1-3%, and then taking out and washing with water to obtain dewaxed passion fruits; drilling a hole at the top pedicel and the corresponding bottom navel of each dewaxed passion fruit respectively to obtain drilled passion fruits; drying the drilled passion fruits with hot air; breaking the passion fruits into blocks with sizes of 8-10cm; drying with microwave to a water content of below 10%; breaking into grains to obtain the passion fruit substitutional tea. The invention also discloses a preparation method for passion fruit-momordica grosvenori substitutional tea, wherein the passion fruit-momordica grosvenori substitutional tea is obtained by mixing according to a weight ratio of (5 to 10): (0 to 5) of the passion fruit substitutional tea to momordica grosvenori grains dried by vacuum microwave and then subpackaging. The hot-air drying for the whole passion fruits in the preparation method disclosed by the invention reserves the fragrance of passion fruit pulp and active ingredients in peels, and the passion fruit-momordica grosvenori substitutional tea is capable of reducing the acidity of the passion fruit substitutional tea and has a fresh, sweet and delicious flavour of momordica grosvenori.