103 results about "Melamine formaldehyde resin" patented technology

The low-VOC modified melamine formaldehyde resin is prepared from the following components in parts by weight: 80 to 100 parts of melamine formaldehyde resin, 5 to 10 parts of hydroxyl-terminated hyperbranched polyester, 8 to 15 parts of epoxy-terminated polybutadiene, 1 to 3 parts of fumed silica, 5 to 15 parts of polyvinyl butyral, 0.1 to 0.2 part of a coupling agent, 1 to 3 parts of a catalyst and 2 to 5 parts of a cross-linking agent, the preparation method comprises the following steps: in a stirring state, adding hydroxyl-terminated hyperbranched polyester, epoxy-terminated polybutadiene, a polyvinyl butyral resin solution and coupling agent modified fumed silica into a melamino-formaldehyde resin solution, heating to 50-70 DEG C, and adding a catalyst and a cross-linking agent; the melamine modified resin prepared by the components and the preparation method has the characteristics of low formaldehyde volatilization, high toughness and durability.

The invention discloses a method for catalyzing melamino-formaldehyde resin methylation reaction by solid acid. According to the invention, epoxy silane coupling agent grafted modified nanocellulose is introduced into sulfonated styrene-divinyl benzene cross-linked copolymer microspheres for in-situ crystal cross-linking, so that the problems that the traditional sulfonated polystyrene resin is poor in mechanical strength and solution solubility resistance, low in cycle index, easy to swell and fall off and the like are effectively solved; the prepared solid acid resin has the characteristics of high reaction activity, high proton transfer rate, high mechanical strength, high cyclicity and easiness in solid-liquid separation, and by utilizing the solid acid resin to catalyze the etherification reaction of the melamino-formaldehyde resin, the reaction temperature and the production energy consumption are reduced, the reaction time is shortened, the product quality and the production efficiency are improved, and the production cost is reduced. The problems of environmental protection and energy consumption caused by the generation of a large amount of VOCs in the etherification reaction of the traditional liquid catalyst for synthesizing the high-etherified melamine formaldehyde resin and the by-product inorganic salt in the subsequent process are solved.

The invention discloses a micro-fluidic technology-based double-shell microcapsule fire extinguishing agent and a preparation method thereof, and belongs to the technical field of fire extinguishing agents. A low-boiling-point liquid fire extinguishing agent serves as a capsule core, a polyurethane material prepared through the microfluidic technology serves as a first layer shell, flame-retardant materials such as melamine formaldehyde resin serve as a second layer shell, the capsule core is coated with the first layer shell, the first layer shell is coated with the second layer shell, and the double-shell microcapsule fire extinguishing agent based on the microfluidic technology is obtained. Microencapsulation of the low-boiling-point liquid fire extinguishing agent can be well achieved through the micro-fluidic technology, the obtained single-shell-layer microcapsule fire extinguishing agent is complete in structure, compact in shell layer, uniform in particle size and good in dispersity, the good flame retardant effect can be achieved through introduction of the second-layer shell resin type flame retardant material, and the heat stability of the microcapsule fire extinguishing agent is improved.

The invention discloses an adsorption material for high-humidity and high-temperature iodine-containing aerosol and a preparation method thereof.According to the prepared adsorption material, polymers such as melamino-formaldehyde resin serve as a three-dimensional porous framework, and the adsorption material is prepared through a mild one-step solution processing method; an ionic polyimine network based on a lysine salt ionic liquid and carbonyl-rich polyvinylpyrrolidone are compounded on a skeleton in situ to form a porous adsorbent, and the porous adsorbent realizes efficient capture of elemental iodine (I2), methyl iodide (CH3I) and iodine aerosol through a synergistic mechanism of electrostatic induced adsorption and in-situ packaging and curing, so that the adsorption efficiency is improved, and the adsorption efficiency is improved. Under the harsh industrial conditions that the temperature is 100 DEG C or above and the relative humidity is 90% or above, the dynamic adsorption capacity to iodine reaches up to 160.7 wt%, the filtering efficiency is kept 99.8% or above, meanwhile, excellent iodine retention stability, recoverability and large-scale preparation potential are achieved, and an efficient, low-cost and practical solution is provided for treatment of radioactive iodine in nuclear waste gas.

This invention belongs to the field of wastewater treatment technology and discloses a mechanical catalytic treatment method and system for wastewater and contaminated groundwater. The mechanical catalytic treatment method for wastewater and contaminated groundwater includes the following steps: adding a treatment agent to the wastewater to be treated, mixing and reacting, filtering, and completing the wastewater treatment; wherein, the treatment agent includes at least one of piezoelectric catalytic material and magnetic resin; the mixing reaction is carried out under ultrasonic cavitation and / or spiral aeration conditions; the piezoelectric catalytic material includes a porous plant cellulose fiber carrier and a C3N5 functional layer in situ grown on the surface of the carrier; the magnetic resin includes a benzo-melamine-formaldehyde resin matrix with sulfonic acid groups bonded to a benzene ring and Fe3O4 magnetic nanoparticles uniformly dispersed in the resin matrix. This invention eliminates the need for chemical agents in wastewater treatment, avoids secondary pollution, effectively treats complex water bodies while reducing operating costs, and possesses good environmental friendliness and practicality.

This application relates to a highly acid and alkali resistant pigment, Red 48:1, and its preparation process, belonging to the field of chemical pigment manufacturing technology. The pigment is prepared from 2B acid, sodium nitrite, 2,3 acid, a barium-lanthanum-calcium multimetallic salt component, aminotrimethylenephosphonic acid, zirconium salt, melamine-formaldehyde resin prepolymer, epoxy resin emulsion, silane coupling agent, and surfactant. The preparation process includes sequential diazotization and coupling reactions, followed by a co-lake reaction with the addition of multimetallic salts; then interfacial anchoring via aminotrimethylenephosphonic acid, and inorganic deposition hybridization via droplet addition of zirconium salt; finally, a staged crosslinking coating reaction is performed with the aforementioned resin and coupling agent. This invention constructs an inorganic-organic hybrid coating layer in situ on the pigment core surface of the multimetallic lake, physically blocking the penetration pathways of acid and alkali ions, thus improving the pigment's resistance to acid and alkali bleeding and its resistance to ultraviolet aging.

The invention relates to a paraffin modified organic silicon pressure-sensitive adhesive with viscosity switching triggered by temperature, and belongs to the technical field of pressure-sensitive adhesives. The preparation method comprises the following steps: by taking high-temperature wax as a core material and melamine-formaldehyde resin and a KH-550 modified nano boron nitride hybrid shell layer as wall materials, obtaining a phase change microcapsule by adopting an in-situ polymerization method, and then grafting Mal-PEG2-COOH to obtain a modified phase change microcapsule; the preparation method comprises the following steps: forming an intermediate from isocyanate propyl triethoxy silane and furfuryl amine, hydrolyzing to modify an organic silicon pressure-sensitive base adhesive, and preparing the organic silicon pressure-sensitive adhesive from the modified organic silicon pressure-sensitive base adhesive and the modified phase-change microcapsules. The DA reaction is performed at normal temperature to form a covalent cross-linked network, so that the pressure-sensitive adhesive is endowed with high-strength adhesive property; during heating, paraffin melting and DA reverse reaction cooperate to reduce viscosity, and viscosity switching triggered by temperature is achieved; and the modified nano boron nitride can accelerate temperature response and enhance the mechanical property of the microcapsule. The organic silicon pressure-sensitive adhesive prepared by the invention has the effect of temperature-triggered viscosity switching.

The invention discloses a preparation method of anti-cracking impregnated bond paper and application of the anti-cracking impregnated bond paper in a core-board. The preparation method comprises the following steps: adding water and a formaldehyde solution into a reaction kettle, adding melamine while stirring, adjusting the pH value to an alkaline range, heating for polycondensation to reach the standard, cooling, and adding a water-soluble mixture to obtain anti-cracking impregnated bond; and after the pre-impregnated gummed paper is impregnated with the anti-cracking impregnating adhesive twice and is subjected to segmented drying, the surface layer is coated with a glue solution containing a curing agent and a release agent in a rolling manner, and the anti-cracking impregnated paper is obtained after drying. Aiming at the problems that the impregnated decorative paper for artificial board decoration is easy to break, the storage life of the impregnating adhesive is short, the veneer artificial board is easy to crack and the like, the toughening type melamine formaldehyde resin is prepared by adopting a compounding technology and is applied to melamine paper and the veneer artificial board, and the method is simple and easy to implement.

The invention discloses a flame-retardant exposed liquid coiled material and a preparation method and application thereof, and belongs to the technical field of liquid coiled materials, ZIF-8 grows on ammonium polyphosphate in situ, anchoring is achieved through the ion exchange effect of zinc ions and NH4 < + > in an ammonium polyphosphate molecular chain, then coordination reaction with 2-methylimidazole is carried out, and the flame-retardant exposed liquid coiled material is obtained. Ammonium polyphosphate is added into ZIF-8 to form molecular-level coating of the ZIF-8 on the ammonium polyphosphate, so that the hydrophilicity of the ammonium polyphosphate is reduced, the precipitation risk in a humid and hot environment is reduced, the compatibility of the ammonium polyphosphate and a polymer matrix is improved, agglomeration is avoided, the ammonium polyphosphate and a charring agent melamine-formaldehyde resin form a synergistic flame-retardant system, and through the phosphorus-nitrogen synergistic effect, the flame-retardant property of the ammonium polyphosphate is improved. The flame retardant can be used for promoting the formation of a compact expanded carbon layer during combustion, so that the dual effects of gas-phase flame retardance and condensed-phase flame retardance are realized, the problem that the flame-retardant structure of a traditional product is damaged due to a humid and hot environment is effectively solved, and the flame-retardant grade and the long-term effect are remarkably improved.

This invention discloses a method for preparing superhydrophobic aerogels under ambient pressure based on framework regulation and its application. The invention involves a multi-component composite of carboxymethyl cellulose, aramid fiber, carboxylated nitrile rubber, melamine-formaldehyde resin, modified montmorillonite, hydrophobic silica, and an organosilicon waterproofing agent. A vertical pore template is constructed through directional freezing, followed by gradient solvent displacement and ambient pressure drying to finally solidify the superhydrophobic-superoleophilic aerogel. This invention successfully overcomes the core challenge of structural collapse caused by capillary forces during ambient pressure drying through the synergistic enhancement of the organic-inorganic hybrid framework and surface energy regulation, achieving a balance between low shrinkage, high porosity, and stable superwetting properties. The aerogel of this invention possesses excellent mechanical strength and elasticity, and its functionality can be expanded by introducing photothermal fillers. The process equipment is simple and energy-efficient, providing an economical and feasible technical path for the large-scale preparation of high-performance superhydrophobic aerogels.

The invention relates to solvent-borne one-pack clearcoat material, characterized in that it comprises i.) one or more hydroxy functional polymers (A), at least one of which is a poly(meth)acrylate (A1), possessing a) a glass transition temperature below -15 °C as determined by differential scanning calorimetry; b) a hydroxyl value in the range from 130 mg KOH / g to 300 mg KOH / g; and c) a weight-average molecular weight determined by gel permeation chromatography using a polystyrene standard; ii.) one or more crosslinking agents (B), at least one of which is a melamine-formaldehyde resin possessing methoxymethyl groups (B1); and iii.) a catalyst system (C) comprising one or more amine-blocked sulfonic acids (C1); and one or more phosphoric acid catalysts (C2). The invention further related to a multilayer coating system comprising a clearcoat layer formed from said clearcoat material, a method of preparing such multilayer coating system and a thus coated substrate, as well as the use of the solvent-borne one-pack clearcoat material for coating uncoated or precoated substrates, preferably vehicle bodies or parts thereof in OEM or repair coating.

The application belongs to the technical field of bamboo processing, and particularly relates to a preparation method of improved reconstituted bamboo, wherein the defibrated bamboo bundle is stepwise impregnated by preparing etherified melamine formaldehyde resin and modified phenolic resin. First, the bamboo bundle is impregnated by the etherified melamine formaldehyde resin with small molecular size, low viscosity and good water solubility, so that the etherified melamine formaldehyde resin can deeply enter the cell wall and the inner part of the micropore of the bamboo, fully fill the pores and block the hydrophilic channels, and meanwhile, the mildewproof agent is uniformly delivered to the inner part of the bamboo. Further, the bamboo bundle is impregnated by the phenolic resin with large molecular size and modified by flexible sugar ring units, so that the phenolic resin can be enriched on the surface of the bamboo bundle and the bonding interface, a flexible bonding layer is formed, the flexible molecular chain can buffer the residual stress of the interface, the bonding layer flexibility and the bonding strength of the bamboo bundle are improved, and the structural stability of the reconstituted bamboo during long-term use is further ensured.

This application relates to the field of adhesives, and more specifically, to a UV hydrolyzable adhesive and its preparation method. It comprises the following raw materials by weight percentage: 40-58% modified polyurethane acrylate, 10-20% tackifier and absorbent polymer, 1-3% photoinitiator, and the balance being an active diluent; the tackifier and absorbent polymer is composed of a polyurethane associative thickener, methanol-etherified melamine-formaldehyde resin, absorbent fibers, and hydroxyl acrylate. By specifically selecting the polyurethane associative thickener, methanol-etherified melamine-formaldehyde resin, absorbent fibers, and hydroxyl acrylate as the main components of the tackifier and absorbent polymer, and optimizing their ratio, the adhesion strength and hydrolysis detachment effect of the UV hydrolyzable adhesive on the surfaces of lightweight composite materials such as carbon fiber composites and glass fiber reinforced plastics are significantly improved.

The invention discloses anti-corrosion marine concrete and a preparation method thereof, and relates to the technical field of marine concrete. Comprising the following raw materials in parts by weight: 270 to 290 parts of low-alkali ordinary Portland cement, 130 to 150 parts of slag powder, 110 to 130 parts of fly ash, 50 to 70 parts of high-density silica fume, 1100 to 1200 parts of aggregate, 110 to 125 parts of copper-plated microfilament steel fiber, 16 to 20 parts of ion shielding type silane grafted modified emulsion, 3 to 6 parts of melamine-formaldehyde resin coated calcium nitrite microcapsule, 0.05 to 0.1 part of modified cellulose ether and 6 to 8 parts of polycarboxylic acid high-performance water reducing agent. The water-binder ratio of the anticorrosive marine concrete is controlled to be 0.26-0.30. By constructing an organic and inorganic chemical bonding system and rheology regulation and control, uniform dispersion and stable film formation of the emulsion are realized, the interface bonding force is improved, the gradient vibration process is matched, the distribution of functional components is locked, layering and damage are avoided, and the concrete is endowed with excellent mechanical properties and self-repairing capability.

The present application provides a kind of microcapsule aqueous dispersion and preparation method and its application in water-based photosensitive solder resist ink.The microcapsule aqueous dispersion is shell-core structure, the core material of the microcapsule aqueous dispersion is water-soluble basic epoxy acrylate resin, the wall material of the microcapsule aqueous dispersion is ultraviolet light degradable resin, and the ultraviolet light degradable resin is selected from urea-formaldehyde resin or melamine-formaldehyde resin.Microcapsule aqueous dispersion is configured into water-based photosensitive solder resist ink with conventional water-based alkali-soluble epoxy acrylate resin, hydrophilic multifunctional acrylate reactive diluent, photoinitiator, auxiliary agent and water.This application realizes the physical isolation and light-controlled release of basic active component through microcapsule technology, fundamentally solves the poor long-term storage stability of traditional water-based solder resist ink, the poor pattern accuracy caused by uneven volatilization of amine neutralizer, and the contradiction between alkali-soluble requirement and chemical resistance.

The application discloses super-delayed-setting concrete and a preparation method thereof, which comprises the following raw materials in parts by weight: cement: 240-250 parts; fly ash: 75-85 parts; sand: 750-800 parts; stone: 1000-1100 parts; super-delayed-setting water reducing agent: 5-8 parts; water: 160-180 parts; melamine formaldehyde resin: 10-20 parts; plant extract: 15-25 parts; modified acrylonitrile-butadiene-styrene copolymer: 20-30 parts; borax: 8-16 parts; and the modified acrylonitrile-butadiene-styrene copolymer is prepared from acrylonitrile-butadiene-styrene copolymer, acrylic acid and sodium bicarbonate. The application has the effect of prolonging the setting time of concrete.

This invention discloses a self-healing microcapsule for asphalt pavement cracks and its preparation method, relating to the field of road engineering materials technology. The structure includes: the microcapsule comprises a composite modified wall material and a core material, wherein the core material forms an interpenetrating network structure after curing; the mass ratio of the composite modified wall material to the core material is 1:(1.5-2.5); the composite modified wall material, by weight, consists of 60-75 parts of urea-formaldehyde resin prepolymer, 5-15 parts of glass fiber, 8-12 parts of melamine-formaldehyde resin, and 400 parts of polyethylene glycol. The wall material consists of 5-8 parts of silane coupling agent KH-5501-3 parts, polyethylene glycol diglycidyl ether 0.5-1.0 parts, and dispersant 0.8-1.2 parts; the core material, by weight, consists of 75-85 parts of asphalt recycling agent with an aromatic content ≥45%, 2-5 parts of maleic anhydride, 0-15 parts of epoxy resin E-511, and 2-3 parts of microcapsule-encapsulated dicyandiamide latent curing agent; this invention optimizes the design of the wall and core materials, enhances performance and compatibility, improves the preparation process, improves microcapsule performance, reduces costs, and enhances the overall benefits and sustainability of road surfaces.

The invention belongs to the technical field of electromagnetic wave absorbing materials, and particularly relates to a hollow spherical mixed-phase molybdenum disulfide-coated Ti3C2Tx composite material and a preparation method and application thereof.The preparation method comprises the following steps that Ti3AlC2 is added into a hydrochloric acid solution of lithium fluoride, after etching, supernate is removed through centrifugation, precipitates are washed with water till the pH ranges from 6 to 7, the precipitates are dispersed in water again, ultrasonic treatment is conducted, and the hollow spherical mixed-phase molybdenum disulfide-coated Ti3C2Tx composite material is obtained. A supernatant is collected, such that a Ti3C2Tx suspension liquid is obtained; the preparation method comprises the following steps: adding melamine into a formaldehyde aqueous solution, heating and stirring for a set time, then adding acid into the formaldehyde aqueous solution, heating and stirring to react under a weak acid condition, and centrifuging after the reaction is finished to obtain melamine formaldehyde resin microspheres MF; the preparation method comprises the following steps: ultrasonically dispersing melamino-formaldehyde resin microspheres in water, then adding a Ti3C2Tx suspension into the water, and carrying out self-assembly on MF and Ti3C2Tx to obtain Ti3C2Tx (at) MF; the preparation method comprises the following steps: dispersing Ti3C2Tx (at) MF in water, adding a molybdenum source and a sulfur source, and then carrying out hydrothermal reaction on a mixed solution to obtain the hollow spherical mixed-phase molybdenum disulfide (at) Ti3C2Tx composite material. The problems of poor impedance matching and poor electromagnetic wave absorption performance of the Ti3C2Tx-based material can be solved.

The invention discloses environment-friendly melamine decorative paper and a preparation method thereof, and belongs to the technical field of impregnated paper. The method comprises the following steps: pulping composite plant fibers, adding aminated nanocellulose, modified zeolite powder, polyamide epichlorohydrin resin and polyacrylamide, and carrying out papermaking to obtain functional base paper; the preparation method comprises the following steps: reacting a formaldehyde solution with melamine, and adding castor oil-based polyol, a formaldehyde catching agent and a cross-linking accelerant to prepare modified melamine formaldehyde resin; functional base paper is soaked in the resin, and a finished product is obtained through drying and hot pressing. The formaldehyde emission of the obtained decorative paper is as low as 0.004 mg / L, the tensile strength is remarkably improved, the decorative paper has high strength and good toughness and is excellent in wear resistance and water resistance, and the process is compatible with an existing production line, environmentally friendly and suitable for industrial production.

The application belongs to the technical field of adhesives, and relates to a kind of organic silicon foaming glue and its preparation method.The organic silicon foaming glue includes component A and component B, the component A includes the following raw materials: vinyl silicone oil, hydroxyl silicone oil, fumed silica, platinum catalyst;The component B includes the following raw materials: vinyl silicone oil, hydrogen-containing silicone oil, fumed silica, flame-retardant microcapsule, inhibitor;Wherein, the core material of the flame-retardant microcapsule is graphene, and the shell material from inside to outside is modified acrylic resin and melamine formaldehyde resin in turn.The organic silicon foaming glue provided in the application solves the problem of high filling amount of existing foaming glue flame retardant and easy leakage of flame retardant in the prior art, and the limiting oxygen index (LOI) of the prepared foaming glue is improved to more than 32%, the vertical burning grade reaches UL94V-0 level, and no melt dripping occurs;The foaming glue remains stable in performance in the range of-60℃~200℃, and after high-low temperature cycle-40℃ / 2h→150℃ / 2h, cycle 10 times, the compression permanent deformation rate is less than or equal to 15%.

The utility model discloses a melamine resin particle quantitative feeding device with adjustable capacity in the field of melamine resin particle feeding equipment, which comprises a bottom plate, a box body, a first support plate and a feeding barrel, the box body is positioned above the top of the bottom plate, the first support plate is positioned above the top of the box body, and the feeding barrel is positioned above the top of the box body. The feeding barrel is located above the top of the first supporting plate, moving rolling wheels are fixedly connected to the four corners of the bottom of the bottom plate, and a containing groove is formed in the middle of the bottom of the box body. According to the quantitative feeding device, enough melamine formaldehyde resin particles can be stored at a time, workers do not need to continuously add the melamine formaldehyde resin particles into the feeding container, time and labor are saved, use is convenient, the angle and the outlet height of the quantitative feeding device are convenient to adjust, and the use efficiency of the quantitative feeding device is improved.

This invention belongs to the field of electromagnetic wave absorbing materials technology, and specifically discloses a hollow spherical Ti3C2T x @Molybdenum disulfide@cobalt / carbon composite materials, their preparation methods, and applications. The preparation method includes the following steps: reacting formaldehyde with melamine to prepare melamine-formaldehyde resin particles, ultrasonically dispersing them in water, and then adding Ti3C2T. x Suspension, stirred, melamine-formaldehyde resin particles with Ti3C2T x Self-assembly yields the core-shell material Ti3C2T x @MF; Ti3C2T x @MF, molybdenum source, and sulfur source are dispersed in water in a certain proportion and subjected to a hydrothermal reaction. The hydrothermal reaction product is washed and dried to obtain hollow spherical Ti3C2T x @Molybdenum disulfide composite material HTM; A dimethylimidazole alcohol solution is slowly added to a mixed alcohol solution of HTM and a cobalt source, stirred for a set time, and then allowed to stand for a set time to obtain HTM@ZIF67; HTM@ZIF67 is then pyrolyzed in an inert atmosphere to obtain hollow spherical Ti3C2T. x @Molybdenum disulfide@cobalt / carbon composite material. This material combination can effectively promote the attenuation of electromagnetic waves and reduce the material's filler content.

This invention discloses a hyperbranched polyamide modifier, a modified melamine-formaldehyde resin, and their applications, belonging to the technical field of melamine-formaldehyde resin modification. The modifier is prepared from tetraethylenepentamine, ethylenediaminetetraacetic acid (EDTA), a catalyst, and water; the molar ratio of tetraethylenepentamine to EDTA is 1:(0.3-1); the amount of catalyst is 0.5-1.5 wt% of the total mass of tetraethylenepentamine and EDTA. The hyperbranched polyamide modifier prepared by this invention is compatible with melamine-formaldehyde resin, improving toughness and appropriately reducing formaldehyde release.

The application provides a preparation method and application of melamine-formaldehyde modified Mxene, first, melamine-formaldehyde prepolymer is synthesized, then Mxene is prepared by stripping aluminum carbide through a lithium fluoride acid solution, finally, the melamine-formaldehyde prepolymer and the stripped Mxene are in-situ polymerized to obtain melamine-formaldehyde modified Mxene, the melamine-formaldehyde modified Mxene is compounded with each component of ink, and grinding and filtering are carried out, so that high-efficiency heat-conducting UV-LED ink is obtained, the melamine-formaldehyde resin is used for embedding treatment of Mxene, so that the dispersibility of Mxene is improved, the technical problem of poor compatibility of Mxene and an ink matrix is solved, and then, the connecting material, the pigment and various kinds of additives are supplemented, UV-LED heat-conducting ink is prepared, the agglomeration of Mxene is effectively prevented, and the heat conductivity of the heat-conducting ink is greatly improved, and the heat conductivity coefficient of the ink film after printing is up to 1.32 W / m.K in the plane direction.

According to the preparation process of the environment-friendly ENF-grade fireproof plate, firstly, glue solution urea-formaldehyde resin and melamine formaldehyde resin are modified, then the glue solution urea-formaldehyde resin and the melamine formaldehyde resin are mixed according to the proportion of 5: 5 to form mixed glue solution, and the prepared fireproof plate is good in surface abrasion resistance and bonding strength. And the plant negative oxygen ion extracting solution is added, so that the prepared fireproof plate has the effects of reducing aldehyde and releasing negative oxygen ions. Then, chitosan is used for modifying glass fibers, then the adhesive film paper, the non-woven fabric and the modified glass fibers are impregnated, the fireproof plate can release formaldehyde capable of being volatilized under the high-temperature effect of hot pressing, and the remaining formaldehyde is purified through the formaldehyde purifying function of the newly-added plant negative oxygen ion extracting solution; and finally, the formaldehyde emission of the produced fireproof plate reaches the ENF level.

This disclosure discloses an integrated waterborne epoxy asphalt waterproof coating, comprising: a blend of anionic emulsified asphalt, a waterborne phenolic resin epoxy emulsion, and an epoxy curing agent. The anionic emulsified asphalt is a waterborne emulsified asphalt obtained by emulsifying with an anionic emulsifier soap solution, which is obtained by saponifying an aqueous solution of anionic emulsifier with sodium hydroxide. The waterborne phenolic resin epoxy emulsion is an emulsion of phenolic epoxy resin grafted with polyetheramine, and the epoxy curing agent is butylated phenyl melamine-formaldehyde resin.

The application discloses a kind of impregnated paper baking paint surface decorative plate, comprising: substrate, impregnated paper layer, baking paint coating, protective film, wherein, the impregnated paper layer is melamine formaldehyde resin impregnated adhesive film paper, toughening modifier is added in the melamine formaldehyde resin, the toughening modifier is selected from at least one of diethylene glycol, flexible chain segment alcohol compound, aqueous hyperbranched polymer, inorganic nanoparticles.The baking paint coating is selected from at least one of wood wax oil, water-based wood paint, PU wood paint, UV curing paint, the present application relates to decorative plate preparation technical field, the present application significantly reduces raw material cost, simplifies production process, reduces equipment threshold, prevents cracking, prevents warping, prevents discoloration / yellowing, protective film design, ensure transportation and processing quality, with rich aesthetic effect, satisfy diversified demand.

The invention relates to the technical field of ink, in particular to ink-jet ink containing color-changing microcapsules and a preparation process thereof.The ink-jet ink is characterized in that one or more of phenolic resin, melamino-formaldehyde resin and polyurethane are combined to serve as a wall material, a core material capable of responding to color-changing dye is packaged, and the color-changing microcapsules are constructed; the preparation method comprises the following steps: by taking isophorone diisocyanate and epoxy cinnamon polyol as raw materials, 2, 2-dimethylolbutyric acid as a hydrophilic chain extender, modified amino silicon oil as a modifier and hydroxyethyl methylacrylate as an end-capping reagent, obtaining a waterborne polyurethane acrylate emulsion with double bonds; polymerizing with isobornyl methacrylate and double-bond lignin to obtain a water-based bio-based polyurethane emulsion as an ink binder; by controlling the component raw material ratio of the water-based bio-based polyurethane emulsion and cooperating with the color-changing microcapsule and the dispersing agent, the prepared ink has proper viscosity and surface tension, and has wide application in the field of daily textiles.

The invention provides a halogen-free flame-retardant epoxy resin composite material with high tracking resistance and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 40-80 parts of melamino-formaldehyde resin, 50-90 parts of epoxy resin and 30-120 parts of a solvent, the melamine formaldehyde resin is at least one of butylated melamine resin, methylated melamine resin, polymerized type partially methylated melamine resin, polymerized type high-imino high-methylated melamine resin or haplotype high-methylated melamine resin. According to the halogen-free flame-retardant epoxy resin composite material with high tracking resistance, on the premise that no powder flame retardant is added, the contradiction between the halogen-free flame-retardant performance and the tracking resistance is coordinated, the halogen-free flame-retardant performance of a prepared plate reaches the UL94 V-0 level, meanwhile, the tracking resistance PTI is larger than or equal to 600 V, and the halogen-free flame-retardant performance reaches the UL94 V-0 level. The excellent mechanical property is realized.