4439 results about "Acrylic resin" patented technology

The invention belongs to the field of photovoltaic glass coatings, and particularly relates to a super-hydrophilic anti-reflection wear-resistant self-cleaning coating for room-temperature curing of photovoltaic glass, which takes nano silicon dioxide sol as a main film-forming agent to cure and form a film and comprises the following raw materials in parts by weight: 55-90 parts of deionized water, 9-20 parts of nano silicon dioxide sol, 1-10 parts of a silane coupling agent and 0.001-1 part of nano titanium dioxide. The coating is prepared from the following components in parts by weight: 0.01-1 part of a surfactant, 0.01-1 part of modified polyvinyl alcohol, 0.01-1 part of water-based acrylic resin, 0.001-1 part of an antistatic agent, 1-5 parts of a curing agent, 1-5 parts of a flatting agent and 0.1-1 part of a wear-resistant agent. The super-hydrophilic anti-reflection wear-resistant self-cleaning coating has super hydrophilicity, the water contact angle is below 10 degrees, the hydrophilicity, the antistatic property, the anti-reflection property, the wear resistance and other properties of glass can be remarkably improved, and when the super-hydrophilic anti-reflection wear-resistant self-cleaning coating is applied to photovoltaic module glass, the photoelectric conversion efficiency in photovoltaic power generation can be improved.

The invention relates to the technical field of high polymer materials, and particularly provides a self-repairing type UV curing alumite color layer coating and a preparation method thereof. The water-based ink is prepared from, by weight, 30-50 parts of polyurethane acrylic resin, 10-25 parts of modified acrylic oligomer containing dynamic covalent bonds, 2-5 parts of photoinitiator, 3-8 parts of hydrophobic modified nano filler and 1-3 parts of cross-linking agent, and the dynamic covalent bonds are selected from at least one of hydrazide bonds, boric acid ester bonds and Diels-Alder bonds. By introducing a gradient energy collaborative network of dynamic covalent bonds and quadruple hydrogen bonds, rapid self-repairing of the coating at normal temperature and thermal triggering recombination of deep damage are achieved, and meanwhile through the micro-phase separation design of the hydrophobic core-shell filler and the graft modified silicon carbide nanowires, the hydrolysis resistance is improved.

The invention discloses a preparation method of a flexible material with double functions of radiation refrigeration and photothermal conversion storage, and relates to the field of composite phase change materials. The preparation method comprises the following steps: 1) preparing the flexible phase change material matrix by utilizing n-octadecane, SEBS and POE through hot pressing; 2) preparing a BaSO4 solution by using absolute ethyl alcohol, deionized water, a water-based defoaming agent, a water-based dispersing agent and an acrylic resin emulsion; (3) preparing an MXene solution; and 4) spraying the BaSO4 solution on the surface of one side of the flexible composite phase change material matrix by using a spray gun, and spraying the MXene solution on the surface of the other side of the flexible composite phase change material matrix to obtain the flexible composite phase change material. The radiation refrigeration layer can strongly reflect visible light and near-infrared light, has high emissivity in an infrared light area, especially in an atmospheric window wave band, reduces absorbed atmospheric heat radiation, reduces urban heat island effect caused by dense building groups in cities, and can effectively solve the problems of large day and night temperature difference and heat supply and demand in summer and winter.

The present invention relates to the technical field of coatings. Disclosed are a coating composition having mold-proof and antibacterial properties and a preparation method therefor. The coating composition comprises the following raw materials: an acrylic resin emulsion, a curing agent, a coalescing agent, a defoaming agent, and a leveling agent, wherein the acrylic resin emulsion is prepared from an acrylate monomer, a cross-linking agent, and fluorine-containing silicone oil by means of free radical polymerization under the action of an initiator. A gemini-type quaternary ammonium salt functional group in the structure of the cross-linking agent can enable the coating to have good mold-proof and antibacterial effects, the presence of the ether bond can enable the coating to have better adhesive force, and the presence of the fluorine-containing silicone oil can enable a coating film formed by curing the coating to have a super-hydrophobic surface, thereby avoiding surface moisture which promotes bacterial growth and reproduction, and endowing the coating with antifouling and self-cleaning effects. In addition, the silicon-oxygen bond in the silicone oil can effectively enhance the heat resistance of the coating, thereby facilitating further application of the coating in indoor decoration.

The invention relates to the field of quantum dot ink, and discloses diffusion plate printing quantum dot ink and a preparation method thereof.The diffusion plate printing quantum dot ink comprises acrylic resin, hyperbranched polyester resin, a quantum dot material, modified boron nitride, a reactive diluent, a photoinitiator, a wetting agent and a defoaming agent; the hyperbranched polyester resin is prepared by reacting hyperbranched polyester acrylate and a sulfydryl-terminated silicon-containing reaction monomer, wherein the hyperbranched polyester acrylate is prepared by reacting pentaerythritol with 2, 2-dimethylolpropionic acid and then carrying out esterification reaction with acrylic acid; the sulfydryl-terminated silicon-containing reaction monomer is prepared by reacting eugenol with 1, 1, 3, 3-tetramethyldisiloxane and then carrying out esterification reaction with 3-mercaptopropionic acid; the modified boron nitride is prepared by modifying a cationic polymer which is prepared by carrying out a Mannich reaction on triethylene tetramine, formaldehyde and acetone and then carrying out a condensation polymerization reaction with formaldehyde. After the ink prepared by the invention is cured, a coating film is high in hardness, adhesive force and heat conductivity coefficient, and good in flexibility, heat resistance and migration barrier property.

The invention relates to the technical field of PET optical film coatings, in particular to a coating liquid for a PET optical film coating and a preparation method of the coating liquid. The coating liquid for the PET optical film coating is prepared from the following preparation raw materials in parts by mass: 20 to 25 parts of polyurethane acrylic resin, 10 to 15 parts of N-hydroxymethyl acrylamide, 1 to 2 parts of a coupling agent, 4 to 6 parts of a photoinitiator, 8 to 10 parts of modified nano titanium dioxide, 0.2 to 0.3 part of an ultraviolet light absorber and 40 to 47 parts of a reactive diluent. The coating liquid for the PET optical film coating prepared by the invention is excellent in adhesive force, weather resistance, scratch resistance, light transmittance and the like, and has a wide application prospect.

The invention discloses a transparent composition photoresist with low shrinkage and low vacuum deflation. Comprising the following raw materials in percentage by mass: 1-5% of modified polyhedral oligomeric silsesquioxane (POSS), 1-5% of an expanding monomer, 1-5% of modified acrylic resin, 1-5% of epoxy resin, 1-5% of a thiol cross-linking agent, 1-5% of an initiator, 0.1-3% of a curing accelerator, 0.2-0.5% of a flatting agent, 0.1-5% of a silane coupling agent, 0.01-0.2% of an antioxidant and 80-90% of an electronic-grade organic solvent. The invention also provides a preparation method of a cured coating prepared from the transparent composition photoresist with low shrinkage and low vacuum deflation. The product provided by the invention not only can maintain the properties of high hardness, high thermal stability, high planarization ability, high barrier property, low hygroscopicity, low dielectric constant and the like of the transparent composition photoresist coating, but also can enable the transparent composition photoresist coating to have excellent low shrinkage and low outgassing, thereby achieving the purposes of saving energy, reducing emission, reducing cost and improving efficiency; the low shrinkage of the transparent composition photoresist coating also widens the development of the material in the fields of other panel production processes such as OLED (Organic Light Emitting Diode) and the like.

The present invention discloses a perfluoromethylcyclohexanone microcapsule fire extinguishing medium and its preparation process, which relates to the field of fire fighting technology. A perfluoromethylcyclohexanone microcapsule fire extinguishing medium is composed of a core material and a shell material. The core material includes perfluoromethylcyclohexanone, silicon dioxide, and azobisisobutyronitrile. The shell material includes modified guar gum, acrylic resin, aluminum hydroxide, potassium nitrate, and an emulsifier. The modified guar gum is prepared by the following method: tetrahydrofuran, guar gum, and triethylamine are sequentially added into a reactor, stirred and mixed evenly, and then a tetrahydrofuran solution of diphenylphosphinyl chloride is added dropwise. After the addition is completed, the temperature is raised to 75-85°C and the reaction is carried out for 10-14 hours, followed by post-treatment to obtain diphenylphosphinyl chloride-modified guar gum. The present invention modifies guar gum with diphenylphosphinyl chloride and then uses the modified guar gum for the shell material of perfluoromethylcyclohexanone microcapsules, improving the fire extinguishing performance, heat resistance, and long-term stability of perfluoromethylcyclohexanone microcapsules.

The invention discloses a self-cleaning waterproof coating and a preparation method thereof, and relates to the technical field of waterproof coatings. Wherein the waterproof coating is prepared from organic silicon modified acrylic resin emulsion, a photocatalyst nano composite material, hydrophobic modified silicon dioxide aerogel powder, a nanofiber reinforced material, a dispersing agent, a coalescing agent, a thickening agent, a defoaming agent and deionized water; through the compatibility design of the core-shell structure photocatalyst and the super-hydrophobic silicon dioxide aerogel, multiple self-cleaning of adsorption, degradation and scouring is achieved, the durability and reliability of self-cleaning are remarkably improved, surface modified nanofibers are adopted as a reinforcing material, a three-dimensional network structure is formed in a coating film, and the self-cleaning performance is improved. And the flexibility of the organic silicon modified acrylic resin is synergistically complemented, so that the tensile strength and the deformation resistance of the coating are improved, the brittleness problem of rigid particles is avoided, and the durability of the coating is remarkably improved.

The invention belongs to the technical field of UV curing high polymer materials, and relates to UV curing ink-jet printing power battery blue film ink and a UV curing coating. The UV curing ink-jet printing power battery blue film ink is prepared from the following components in parts by mass: 25 to 80 parts of acrylate resin, 15 to 40 parts of UV photocurable monomer, 2 to 10 parts of hydrophobic monomer, 0.1 to 1 part of auxiliary agent, 2 to 8 parts of photoinitiator and 2 to 7 parts of color paste, the mass ratio of the acrylate resin to the UV photocurable monomer is 1: (1.5-3). According to the present invention, the viscosity of the ink at the room temperature (25 DEG C) is high, and the viscosity of the ink is low when the ink is sprayed out from the nozzle (the corresponding environmental temperature is 60 DEG C), such that the technical problem that the existing insulating paint has the high viscosity and is not suitable for the ink-jet printing is solved, and the viscosity of the sprayed ink is rapidly increased so as to provide the ink-jet printing effect. The problem of printing and edge covering at edges and corners of a power battery shell can be solved.

The invention discloses a polysiloxane elastic waterproof coating and a preparation method thereof, and the polysiloxane elastic waterproof coating comprises the following raw materials: 35-60 parts of methyl polysiloxane resin, 8-12 parts of acrylic resin, 15-20 parts of a filler, 2-5 parts of a thickener, 1-3 parts of a dispersant, 1-3 parts of a coalescing agent, 1-2 parts of an antifoaming agent, 1-3 parts of a leveling agent and 10-20 parts of water. The polysiloxane elastic waterproof coating is obtained by mixing and stirring all the raw materials according to a reasonable proportion, and the polysiloxane elastic waterproof coating is obtained after the coating is dried, and the polysiloxane elastic waterproof coating provided by the invention has excellent adhesion performance, waterproof performance, tensile performance and aging resistance; the waterproof paint can be widely applied to waterproofing of metal materials and building industries.

The invention discloses water-based wear-resistant ink and a preparation method thereof, and belongs to the technical field of ink. The ink is prepared from the following components in parts by weight: 20 to 35 parts of waterborne polyurethane resin, 15 to 25 parts of waterborne acrylic resin with an acid value of 40 to 80 mg KOH / g, 5 to 15 parts of KH570 silane coupling agent modified nano aluminum oxide, 3 to 8 parts of polyethylene wax emulsion, 10 to 20 parts of pigment and auxiliaries. The preparation method comprises the following steps: firstly, carrying out surface modification on the nano aluminum oxide by using KH570, and then mixing, dispersing and grinding all the components. Through the synergistic effect of the acrylic resin with a specific acid value and the modified nano aluminum oxide, the problem that nano particles are easy to agglomerate in a system is solved, the nano particles can be stably dispersed, and the interface bonding with the resin is enhanced, so that the ink is endowed with excellent adhesive force, wear resistance and storage stability while the process is simplified and the cost is reduced; the BOPP film packaging material is especially suitable for BOPP film packaging materials.

The invention relates to chitin-based acrylic resin and a preparation method thereof, and belongs to the technical field of intersection of high value-added utilization of biomass resources and acrylic resin. The chitin-based acrylic resin is prepared from the following components in parts by weight: 30 to 50 parts of acrylic modified chitin, 20 to 30 parts of acrylic monomer, 10 to 20 parts of polyaldehyde monomer, 5 to 10 parts of polybasic organic amine, 1 to 5 parts of emulsifier, 0.1 to 0.5 part of initiator, 0.2 to 0.4 part of defoaming agent and 80 to 120 parts of deionized water. According to the method, forestry and agricultural residues are used as raw materials, chitin with small molecular chains is obtained through deacetylation treatment of chitin, meanwhile, a large number of primary amino groups with high chemical reaction activity are exposed on the surfaces of the molecular chains of the chitin, and organic acrylic aldehyde is further utilized to react with the chitin; acrylic acid groups are successfully grafted to chitin molecular chains to be subjected to polymerization reaction with acrylic acid monomers to form macromolecule resin, meanwhile, the macromolecule resin is subjected to cross reaction with polyaldehyde and polybasic organic amine to generate net-shaped crosslinking, and the strength of the acrylic resin after film forming is improved.

The invention discloses water-based anti-forgery ink, a preparation method thereof, an obtained printed matter and application thereof, and relates to the technical field of printing forgery prevention. The water-based anti-forgery ink comprises the following components in percentage by mass: 15%-30% of water-based resin, 5%-20% of acrylic resin, 0.5%-10% of an auxiliary agent, 2%-5% of a first fluorescent developing substance, 3%-10% of a first microcapsule and the balance of water, a capsule core of the first microcapsule contains a second fluorescent color developing substance, a capsule shell is made of a first temperature-sensitive high polymer material, and the first temperature-sensitive high polymer material is subjected to reversible phase transformation at a first threshold temperature T1; the second fluorescent color-developing substance is different from the first fluorescent color-developing substance. According to the invention, multiple hidden anti-counterfeiting mechanisms are arranged and can be triggered under specific conditions, so that the cracking difficulty is increased; and the anti-counterfeiting verification requirements in some important occasions can be met.

The invention discloses an uvioresistant acrylic resin coating and a preparation method thereof, and belongs to the technical field of acrylic resin paints.The uvioresistant acrylic resin coating is characterized in that step-by-step functional design is adopted, a functional polyurethane prepolymer is constructed through prepolymerization reaction and double-bond end capping, fluorosilicone modified acrylate emulsion is prepared through a core-shell emulsion polymerization process, and the uvioresistant acrylic resin coating is obtained. Then carrying out surface silane modification on hexagonal boron nitride and carrying out composite coating to obtain a modified boron nitride auxiliary agent; and finally, carrying out composite emulsification and dispersion compounding on all the components to obtain the anti-ultraviolet acrylic resin coating. Through the synergistic enhancement effect of the fluorosilicone modified core-shell structure and the surface modified boron nitride, the ultraviolet aging resistance and the insulation reliability of the coating are remarkably improved on the basis of keeping high adhesive force, excellent flexibility and impact resistance of the coating; the problems that a traditional acrylic coating is prone to yellowing and pulverization under long-term ultraviolet radiation, and the mechanical property is reduced are effectively solved, and the acrylic coating is suitable for the field of electronic equipment protective coatings with high requirements for weather resistance, mechanical strength and electrical insulating property.

The invention relates to the technical field of surface coating materials, in particular to a multifunctional surface coating which comprises the following raw materials: organic silicon modified acrylic resin, an intumescent flame retardant, hollow glass beads, nano titanium dioxide, an auxiliary agent, graphene, silver nanoparticles and flaky zinc powder. The intumescent flame retardant is formed by compounding melamine polyphosphate and pentaerythritol, and the auxiliary agent comprises a dispersing agent, a flatting agent and a plasticizer. By integrating multiple functions of fire prevention, water prevention, heat insulation, self-cleaning and the like into a whole, the complex requirements of different fields of buildings, industry, traffic and the like on material performance can be comprehensively met. In the application of building exterior walls, the fireproof safety, the waterproof sealing performance and the heat insulation performance of buildings can be effectively improved, and energy consumption is reduced; in the aspect of industrial equipment protection, equipment can be protected from being damaged by environmental factors such as high temperature, moisture and corrosion, and the service life of the equipment is prolonged.

To provide an aqueous primer composition which has excellent adhesion to an adherend such as aluminum, and can improve adhesion to a porous member and adhesion to an existing sealing material.SOLUTION: An aqueous primer composition containing an organic polymer dispersed in an aqueous medium contains (A) an anionic urethane resin emulsion, and (B) a silyl group-containing acrylic resin emulsion. The aqueous primer composition is suitably usable as a sealing material.SELECTED DRAWING: None

The invention discloses a water-based weather-resistant mildew-proof coating and a preparation method and application thereof.The mildew-proof coating comprises a water-based coating, organic mildew-proof agent missible oil and an inorganic nano-material, the water-based coating comprises water-based acrylic resin and alkyd resin, the mass ratio of the water-based acrylic resin to the alkyd resin is (20-25): 1, the organic mildew-proof agent missible oil is 1: 1, and the inorganic nano-material is 1: 1. The inorganic nano material comprises at least one of nano titanium dioxide, nano zinc oxide and nano silicon dioxide. The preparation method comprises the following steps: mixing the water-based paint, the organic mildew preventive missible oil, the inorganic nano-material, the coalescing agent, the nonionic surfactant and the deionized water to form a mixed solution, and emulsifying the mixed solution under a water bath condition of 50-60 DEG C to obtain the water-based weather-resistant mildew-proof paint. The stability and the storage stability of the mildew-proof coating are at least doubled compared with those of an existing scheme, and the mildew-proof performance is improved by 80% or above.

The invention relates to the technical field of three-proofing paints, in particular to a UV moisture dual-curing three-proofing paint and a preparation method thereof. The conformal coating is prepared from the following raw materials in parts by weight: 10-80 parts of acrylate resin; 20 to 60 parts of a UV reactive diluent; 3-15 parts of a polyurethane latent curing agent; 1 to 10 parts of a photoinitiator; 1-5 parts of a dewatering agent; the acrylic resin comprises at least one of urethane acrylate and isocyanate modified acrylate. According to the invention, when the specific curing agent is selected, especially the oxazolidine latent curing agent or imine latent curing agent containing at least two oxazolidinyl groups is adopted, the curing time of the conformal coating in a dark environment can be greatly shortened, and meanwhile, the problems of bubbles, pinholes and the like caused by moisture in the curing process of the conformal coating can be effectively solved; good market application values are realized.

The invention discloses a highly antibacterial PVC plate and a preparation method thereof, and belongs to the technical field of PVC plates. Comprising the following raw materials in parts by weight: 70-80 parts of SG5 type PVC resin, 16-22 parts of calcium carbonate, 15-25 parts of chlorinated polyethylene, 18-28 parts of acrylic resin, 7-21 parts of a multi-effect antibacterial agent and 4-6 parts of a lubricant. Wherein calcium carbonate can improve the processing performance of PVC and enhance the mechanical property of the board; the chlorinated polyethylene can enhance the aging resistance and flexibility of the plate; wherein the acrylic resin can enhance the processability, aging resistance and flexibility of the PVC; the multi-effect antibacterial agent can enhance the antibacterial property, heat resistance and flexibility of the plate, belongs to macromolecules and is stable in performance; therefore, the prepared PVC plate has excellent processability, aging resistance and mechanical property, has stable and efficient antibacterial property, heat resistance and flexibility, and has important application value in the technical field of PVC plates.

The invention belongs to the technical field of coatings, and discloses an anti-sinking water-based acrylic resin coating and a preparation method thereof.The anti-sinking water-based acrylic resin coating is prepared from, by weight, 110-130 parts of modified water-based acrylic resin, 10-25 parts of modified cellulose nanocrystals, 3-5 parts of a composite additive, 4-6 parts of a dispersing agent, 0.5-2 parts of a defoaming agent, 0.5-2 parts of a flatting agent and 10-20 parts of water; the acrylic resin is modified by using the organic silicon oligomer and the epoxy resin, the film hardness is high, the adhesive force is strong, and the film hardness, the impact resistance, the ultraviolet aging resistance and the flame retardant property of the material are improved by adding the modified cellulose nanocrystals and the composite additive.

The invention discloses an inorganic modified super-long salt-spray-resistant water-based paint and a preparation method thereof, and relates to the technical field of water-based industrial paints. The inorganic modified super-long salt-spray-resistant water-based paint at least comprises the following raw materials in parts by mass: 60-70 parts of water-based acrylic resin, 0.1-0.5 part of a bactericide, 0.2-0.4 part of a wetting agent, 0.5-1 part of a dispersing agent, 0.1-0.3 part of a defoaming agent, 0.5-1 part of a pH regulator, 8-12 parts of nano silicon dioxide coated polymerized calcium phosphate, 0.5-2 parts of modified zinc phosphate, 8-10 parts of silk mica powder, 2-4 parts of a coalescing agent and 10-20 parts of water. And 0.5 to 1 part of a polyurethane thickening agent. The inorganic modified super-long salt-fog-resistant water-based paint prepared by the invention has super-long salt fog resistance, high base material adhesion and low ion dissolution amount, and the hardness and water resistance of a coating are also improved.

The present invention discloses a low-temperature conductive adhesive, which is prepared by weight using raw materials including 70-80 parts of silver powder, 20-30 parts of resin matrix, 1-10 parts of curing agent, 0.1-0.5 parts of silane coupling agent, 0.1-0.5 parts of stabilizer, and 0.1-0.5 parts of metal salt. The present invention introduces an organic metal salt into the resin matrix to reduce the contact resistance of the colloid, and after wet heat aging, maintains a lower contact resistance increase rate. The present invention adopts a combination of epoxy resin, acrylate and modified epoxy acrylic resin, and the weight of epoxy resin and acrylate is less than or equal to the weight of modified epoxy acrylic resin, so that low-temperature curing can be achieved. The present invention can achieve 60-80 ° C, 20-40 min curing, and the conductive adhesive elongation at break obtained can reach more than 8%, and before and after wet heat aging, there is a more stable and relatively small contact resistance, which is particularly suitable for the electronic field with high requirements for contact resistance.

The invention relates to the technical field of titanium dioxide, and discloses a preparation method of high-dispersity nano titanium dioxide and application of the high-dispersity nano titanium dioxide in paints.The nano titanium dioxide is modified through KH560, epoxy groups are introduced to the surface of the nano titanium dioxide, then the nano titanium dioxide and active imino groups of DOPO carboxyl phenolic resin are subjected to a ring-opening reaction, and the high-dispersity nano titanium dioxide is obtained. The hydrophilic carboxyl-containing phenolic resin is introduced to the surface of the nano titanium dioxide, so that the hydrophilicity of the nano titanium dioxide is remarkably improved, the dispersity of the nano titanium dioxide in water is improved, the nano titanium dioxide has good compatibility with acrylic resin, and the hardness and tensile property of the acrylic resin are improved. The phenolic resin grafted on the surface of the nano titanium dioxide has very high char forming property, contains DOPO flame-retardant groups, and can play a very good condensed phase flame-retardant role, so that the water-based paint has a very good flame-retardant effect.

The invention provides a rare earth heat insulation coating and a preparation method thereof. The coating comprises the following components in parts by weight: 50-60 parts of acrylic resin, 10-15 parts of polyurethane modified epoxy resin, 5-8 parts of nano rare earth powder, 3-5 parts of filler, 0.5-1 part of a coalescing agent, 1-2 parts of a defoaming agent, 1-3 parts of a dispersing agent, 0.5-1 part of an ultraviolet light absorber and 1-2 parts of a silane coupling agent. Wherein the nano rare earth powder comprises lanthanum oxide powder, cerium chloride powder and yttrium hexaboride powder, and the filler comprises nano hollow microspheres, nano calcium carbonate and nano aluminum silicate. The rare earth heat insulation coating has excellent heat insulation effect and mechanical property, and can be applied to various scenes.

The invention discloses a preparation method of aluminum nitride by spray granulation, which belongs to the technical field of ceramic preparation. The method comprises: adding aluminum nitride powder and a dispersant into a ball mill for ball milling for 24 to 26 hours, adding an adhesive and a solvent thereto, wherein the adhesive is acrylic resin or PVB, and continuing ball milling for 15 to 18 hours after the adhesive and the solvent are added, the ball milling speed of the ball mill is set to 100 to 200 rpm, the diameter of the ball milling beads is 20 to 50 mm, the number of the ball milling beads is 200 to 300, and aluminum nitride slurry is formed after ball milling; the aluminum nitride slurry is sucked into a granulation tower, and the parameters of the granulation tower are set to: an air inlet temperature of 130 to 140 DEG C, an air outlet temperature of 80 to 90 DEG C, a rotation speed of an atomizing disk of 7000 to 8000 rpm, and a feed pump rotation speed of 50 to 60 rpm; collecting samples at a discharge port of the granulation tower, and then testing the samples and recording the test results.

The invention relates to the technical field of coating preparation, in particular to a highly oil-proof and waterproof fluorine-containing composition and application thereof in coatings, the fluorine-containing composition comprises the following chemical components by weight: 70-80 parts of a resin mixture, 2-5 parts of diisocyanate, 5-8 parts of a modified titanium dioxide filler and 10-15 parts of modified glass flakes, the resin mixture comprises fluorinated hydroxyl acrylic resin and urethane acrylate, and the mass ratio of the fluorinated hydroxyl acrylic resin to the urethane acrylate is (3-5): 1. The resin mixture, the modified titanium dioxide filler and the modified glass flakes form a stable composite structure through chemical bonding and physical effects, and finally the fluorine-containing composition shows excellent waterproof and oil-proof performance and good mechanical strength.

The invention discloses a PHA-acrylic acid structural unit water-based dispersion based on interface engineering regulation and control, a preparation method thereof and application of a paper-based barrier coating, and belongs to the technical field of high polymer materials, interface engineering and water-based coatings. The stable interface layer is constructed in situ between the crystalline PHA and the acrylic resin through the amphiphilic polymer, so that the problems of poor compatibility and film forming defects of a bio-based material are effectively solved. The dispersion can realize excellent waterproof, oil-proof and gas barrier effects by only needing a relatively low coating weight, and the material consumption is remarkably reduced. The unique gradient structure of the coating has excellent mechanical adhesive force and efficient re-pulping and recycling characteristics, and the technical defect that a traditional barrier coating is difficult to recycle is overcome. And an ideal solution with high performance and high safety is provided for green packaging.

The invention belongs to the technical field of coatings, and discloses an anti-yellowing and high-hardness UV (ultraviolet) laminating varnish as well as a preparation method and application thereof. The UV film coating varnish comprises six-functionality alicyclic polyurethane acrylic resin, two-functionality linear polyurethane acrylic resin, pure acrylic resin, an acrylate reactive diluent, a filler, an ultraviolet light absorber, a non-alkaline hindered amine free radical scavenger and a photoinitiator. The weight ratio of the six-functionality alicyclic polyurethane acrylic resin to the two-functionality linear polyurethane acrylic resin to the pure acrylic resin to the acrylate reactive diluent is (2.5-3.5): (1-1.5): 0.5: (2.0-3.0); the bifunctional linear polyurethane acrylic resin is prepared from the following raw materials: isocyanate, poly (1, 4-butanediol) and hydroxyethyl acrylate. A paint film formed by the UV film-coated varnish has good yellowing resistance and high hardness, and is not easy to crack after thermal cycling.

The present invention discloses a tensile and wear-resistant washed kraft paper and its preparation process, which relates to the technical field of kraft paper. The process includes the following steps: Step 1: Add color paste, waterborne acrylic resin, preservative, reinforcing agent, softening agent, curing agent, and waterproofing agent into a solvent in sequence and stir evenly to obtain a sizing slurry; Step 2: Coat the sizing slurry on the base paper, and successively perform extrusion, ultraviolet light irradiation, first drying, ironing, and second drying to obtain the tensile and wear-resistant washed kraft paper. In this application, by preparing specific reinforcing agent and waterproofing agent and introducing them into the sizing slurry for sizing, the interfacial action between the sizing slurry and the base paper is effectively improved, thereby improving the tensile and wear resistance of the washed kraft paper while enhancing the flame retardant performance; it can achieve the purpose of replacing plastic, leather, and cloth with paper.