156results about How to "Light curing speed is fast" patented technology

The invention belongs to the field of coatings, and particularly relates to a polyurethane/polyacrylate copolymer modified by organic fluoride and an ultraviolet curing coating prepared by the polyurethane/polyacrylate copolymer. A method for preparing the polyurethane/polyacrylate copolymer modified by organic fluoride comprises the following steps: 1), preparing a polyurethane prepolymer modified by organic fluoride; 2), preparing a (methyl) acrylate prepolymer; and 3), preparing the polyurethane/polyacrylate copolymer modified by organic fluoride. A method for preparing an ultraviolet curing agent by taking the polyurethane/polyacrylate copolymer modified by organic fluoride as a raw material comprises the steps that taking 100-107 parts of polyurethane/polyacrylate, 50-68 parts of an reactive diluent, 13-18 parts of a photoinitiator and 8-16 parts of an auxiliary; stirring fully for 5-15 minutes until all the materials are mixed uniformly; and obtaining the polyurethane/polyacrylate copolymer modified by organic fluoride and the ultraviolet curing coating prepared by the polyurethane/polyacrylate copolymer.

The invention discloses a high-solid-content UV-curing aqueous urethane acrylate dispersion liquid and a preparation method thereof, wherein the method comprises the following steps of: firstly carrying out the monoesterfication reaction on the partial hydroxide group at the tail end of hyperbranched polyester and the anhydride group of dicarboxylic anhydride to obtain an intermediate I; carrying out the end capping reaction on an isocyanate group in diisocyanate and the hydroxide group in a hydroxyalkyl methacrylate monomer to obtain a reaction intermediate II; carrying out the reaction on the residual hydroxide group of the intermediate I and the residual isocyanate group of the reaction intermediate II to obtain a reaction intermediate III; and carrying out alkali neutralization, aqueous dispersion and reduced-pressure distillation on the reaction intermediate III to remove an organic solvent to obtain the UV-curing urethane acrylate aqueous dispersion liquid. The dispersion liquid has the characteristics of high solid content, relatively low viscosity, UV curability, good mechanical performance of a paint film and the like, conforms to the concept of environmental protection, can be applied to the fields of environment-friendly coatings, aqueous ink, aqueous adhesives, fabric coating agents and the like and has broad prospect.

The invention discloses castor oil-based polyurethane acrylate and a preparation method as well as application thereof. The castor oil-based polyurethane acrylate is hexa-functional or octa-functional castor oil-based polyurethane (methyl) acrylate resin. An acrylate radical comprises a methacrylate radical and an acrylate radical, and is suitable for carrying out free radical polymerization. Under the action of a photoinitiator, the resin is irradiated by ultraviolet light and can generate cross linking at a higher speed. A film formation product of the castor oil-based polyurethane acrylate has excellent flexibility and adhesive force; the hardness and the glossiness of a cured film are obviously improved; the castor oil-based polyurethane acrylate can be used as a formula ingredient of a photo-cured coating material, ink, and an adhesive.

A high-adhesive ultraviolet polyurethane dual curing woodenware coating consists of dual-component priming paint and finish; Priming paint A consists of polyurethane acrylic ester with -NCO group 30-50 proportion, modified nanometer silicon dioxide 10-20 proportion, superfine hydrated magnesium silicate 10-20 proportion, active diluting agent 20-40 proportion and light evocating agent 1-5 proportion; Priming paint B consists of polyurethane acrylic ester with hydroxy-group 20-30 proportion, modified nanometer silicon dioxide 10-20 proportion, superfine hydrated magnesium silicate 10-20 proportion, active diluting agent 20-40 proportion and light evocating agent 1-5 proportion; Finish consists of polyurethane acrylic ester 10-30 proportion, epoxy-acrylic ester 10-30 proportion, modified nanometer silicon dioxide 10-30 proportion, active diluting agent 20-40 proportion and light evocating agent 1-5 proportion. It has better coating adhesion, mechanical strength and abrasive resistance. It can be used to coat large-area oily woods.

The invention discloses humidity and ultraviolet dual-cured polyurethane woodware coating and a preparation method thereof. A synthesis method includes synthesizing initial polyurethane polymer I, polyurethane pre-polymer II, polyurethane pre-polymer III, polyurethane acrylate oligomer and ultraviolet cured woodware coating. The humidity and ultraviolet dual-cured polyurethane woodware coating is mainly prepared by aliphatic diisocyanate, dihydric alcohol pre-polymer, polyhydroxy acid, epoxy resin and hydroxy acrylic ester and the like, and by adding auxiliaries such as photoinitiators, flatting agents, defoamers, substrate wetting agents and catalysts, the ultraviolet cured woodware coating is prepared. The ultraviolet cured woodware coating can form films and be cured under irradiation of ultraviolet, also can be cured by humidity in the air within 5 hours at the room temperature, and has the advantages of high solid, NCO (isocyanate) group content and adhesion force, fine resistance to chemical corrosion, high film coating hardness and fine storage stability and the like, can be used for irregular coating surfaces, hone finished UV (ultraviolet) paint and UV colored paint and the like where cannot be irradiated by the ultraviolet.

The invention provides an aqueous system conductive polyaniline ultraviolet curing antistatic coating and a preparation method thereof. In the method, water-based conductive polyaniline is used as a conductive component, water-based ultraviolet curing resin is used as a film-forming component, coatings with different conductivities can be respectively obtained, and a coating with the surface resistance value range of 1*10<3> to 1*10<9>omega/sq is formed on a base material; the coating has the characteristics of high photocuring speed of 20 to 26M/min, no need of heating, high efficiency and energy conservation; the coating does not contain any toxic, harmful and volatile organic solvents such as toluene and dimethylbenzene, is an aqueous system coating and is environmentally-friendly; the coating has a stable system and cannot be demixed after being placed for six months at room temperature; and when a conductive coating containing the aqueous system conductive polyaniline ultraviolet curing antistatic coating is placed in the air for one year, the surface resistance is only improved by 1.3 to 8 percent, so the coating has lasting antistatic effect.

The invention discloses an ultraviolet (UV) curable super-hydrophobic anti-fingerprint coating, which consists of a polyurethane acrylate (PUA) resin, an acrylic ester resin, an activated fluorine monomer, a silicon resin and modified nano SiO2. The UV curable coating consists of a PUA oligomer, an activated thinner, a photoinitiator and an additive. According to the UV curable super-hydrophobic anti-fingerprint coating, the UV curable coating is prepared from the high-activity PUA oligomer, the activated thinner, the photoinitiator and the like, and a monomer with a special structure is added to resist fingerprint impressions; on such a basis, the activated fluorine monomer, the silicon resin and the like are introduced to form surface-dense and stable self-demixing hydrophobic varnish, so that a self-cleaning effect is achieved; and the modified nano SiO2 is used for constructing a surface micro/nanostructure by adopting a self-assembly technology, so that the UV curable super-hydrophobic anti-fingerprint coating has high performance. The invention also discloses a preparation method for the UV curable super-hydrophobic anti-fingerprint coating.

The invention discloses ultraviolet curing vacuum coating metal primer capable of achieving electrostatic spraying and a preparation method thereof.The ultraviolet curing vacuum coating metal primer capable of achieving electrostatic spraying is prepared from, by weight, 5-20 parts of urethane acrylate, 10-20 parts of epoxy acrylate, 0-5 parts of pure acrylate, 5-10 parts of polyesteracrylate, 30-40 parts of trimethylolpropane triacrylate, 10-20 parts of low-functionality active diluted monomers, 2-5 parts of photoinitiator, 0.05-0.1 part of a flatting agent, 0.05-0.5 part of adhesion promoter, 0.01-0.5 part of a conductive agent and 3-5 parts of electrostatic thinner.The ultraviolet curing vacuum coating metal primer prepared through the method can be used for electrostatic spraying, has the advantages of being good in coating performance, good in adhesion, high in salt fog resistance, high in production efficiency, high in paint utilization rate and the like, and has wide market prospects.

The invention relates to an ultraviolet light/heating double-curing adhesive. The adhesive contains the following raw materials in parts by mass: 40-70 parts of toughening-type epoxy premix, 15-35 parts of acrylate monomer, 0.1-1 part of photoinitiator, 0.1-1 part of thermal initiator, 10-35 parts of latent initiator and 1-10 parts of thixotropic agent, wherein the toughening-type epoxy premix contains bifunctional epoxy resin, liquid crystal epoxy resin and core-shell rubber particles. According to the adhesive disclosed by the invention, by adopting an epoxy/acrylate hybrid system, a heat curing epoxy component with high toughness and high adhesion strength to an LCP (Liquid Crystal Polymer) is obtained by introducing core-shell rubber and liquid crystal epoxy; through the fast photocuring positioning ability of an acrylate system, the applications of photocuring technology to opaque media, complex-shaped substrates, ultra-thick adhesive layers and colored adhesive layers are expanded; and the adhesive is especially suitable for electronic automated high-speed operations and adhesion of components with complex structures.

The invention discloses 3D (three dimensional) print light-cured resin, and belongs to the technical field of new materials. The light-cured resin is prepared from 20 to 70 parts of carboxyl-containing epoxy acrylate, 20 to 70 parts of aliphatic polyurethane acrylate, 2 to 20 parts of light curing reactive diluent, 1 to 20 parts of light curing agent, 1 to 20 parts of heat curing agent, 2 to 10 parts of alpha-Al2O3 and 0.1 to 1 part of assistant. The invention also provides a preparation method of the 3D print light-cured resin. The resin provided by the invention is quick in light curing speed, can be quickly formed and processed, is moderate in hardness and flexibility, and can be cured completely. Defects in the aspects of toughness, wrapping property, heat resistance and the like of light-cured resin in the prior art are overcome. According to the resin and the preparation method thereof, the carboxyl-containing epoxy acrylate is selected for reacting to improve mechanical strength in post curing; by adding the aliphatic polyurethane acrylate, the flexibility can be improved; two components are introduced, so the light curing efficiency and finished product mechanical property are improved at the same time.

The invention provides a photo-thermal double-curing 3D printing resin composition. The photo-thermal double-curing 3D printing resin composition comprises, by weight, 66-86 parts of a radical-type photosensitive resin, 9-29 parts of a heat-curable epoxy resin, 1-4 parts of a radical photoinitiator and 1-3 parts of a latent thermosetting agent. The photo-thermal double-cured 3D printing resin composition is prepared through irradiation with ultraviolet light having wavelength of 365 nm to 500 nm so that the acrylic resin therein undergoes a free radical-initiated polymerization reaction underthe action of a photoinitiator and the reaction product is subjected to heat preservation at 80-120 DEG C for 1-2h after shaping so that the epoxy resin is post-cured under the action of the latent heat curing agent. The photo-thermal double-curing 3D printing resin composition accelerates the speed of photocuring, reduces the volume shrinkage of the product and has high physical and mechanical properties of the product through later heat curing.

The invention discloses an UV-curing coating. The UV-curing coating comprises the following components in parts by weight: 16-25 parts of bisphenol A epoxy acrylate resin, 4-10 parts of phenolic epoxy acrylate, 8-15 parts of epoxidation oil propionate, 10-25 parts of active diluents, 1-5 parts of photoinitiators, 6-12 parts of organic amine, 1-4 parts of auxiliary agents and 30-50 parts of a solvent. The UV-curing coating is used for making a printed circuit board and a substrate which has difficult adherence performance or a soft base material, the UV-curing coating has the advantages of fast light-curing speed of the coating, high coating hardness, good corrosion resistance, good heat resistance, good wetability, light irritation on skin, easy acquisition of the raw materials, and low cost.

The invention discloses UV gloss oil used for laser embossing transfer equipment. The UV gloss oil is characterized by comprising the following components in parts by weight: 2-10 parts of a light initiator, 1-5 parts of 2-ethylhexyl acrylate, 1-5 parts of a base material lubricant, 45-75 parts of a pre-polymer and 18-35 parts of a monomer, wherein the pre-polymer is amine modified polyether acrylate or ester-epoxy acrylate or superbranched polyester acrylate or a combination of the amine modified polyether acrylate and the ester-epoxy acrylate in same parts by weight; the monomer is 1,6-hexanediol diacrylate or ethoxylated trimethylolpropane triacrylate. The UV gloss oil disclosed by the invention is fast in curing speed, good in flexibility and high in glossiness and can satisfy an embossing transfer laser process, so that the laser embossing transfer effect is good.

The invention belongs to the technical field of paints, and discloses a nano cellulose whisker grafted water-diluted photocuring PUV (polyurethane acrylate) resin, and preparation and application thereof. The preparation method comprises the following steps: reacting aromatic or aliphatic diisocyanate with polyoxypropylene diol to obtain a polyurethane prepolymer I, sequentially reacting the polyurethane prepolymer I with dimethylolpropionic acid, nano cellulose whiskers, 2-hydroxypropyl acrylate and a pentaerythritol triacrylate mixture to obtain a nano-cellulose-whisker-containing PUV prepolymer, neutralizing the prepolymer, diluting with water, and removing the acetone solvent to obtain the product. The nano cellulose whiskers are subjected to graft polymerization reaction with NCO and OH groups onto the polyurethane prepolymer molecular chain, so that the obtained product has very high photocuring speed, excellent adhesive force, favorable storage stability and favorable water resistance. The tensile strength of the photocured paint film can reach 15.51 MPa, and the paint film has favorable mechanical properties.

The invention relates to a self-leveling aqueous fluorine-containing urethane acrylic resin, a preparation method thereof and an aqueous photocurable coating, and belongs to the field of coatings. Theself-leveling aqueous fluorine-containing urethane acrylate resin of the invention is prepared from the following raw materials in mass percentage: 10-20% of trimer polyisocyanate, 10-25% of monohydroxy acrylates, 2-10% of perfluoropolyether glycol, 1-2% of trimethylolpropane, 2-6% of dimethylolpropionic acid, 1-3% of neutralized amine, 40-60% of water, 4-7% of acetone, 0.01-0.1% of a catalyst, and 0.1-1% of a polymerization inhibitor. The leveling aqueous fluorine-containing urethane acrylic resin of the invention has excellent water dispersibility, good stability, milky white appearance with blue light, high resin solid content and moderate viscosity; and the obtained photocurable coating has good stability, strong impact resistance, and good application prospects.

The invention discloses an electro-deposition photoresist, which comprises the following components: 17.0 to 19.0 weight percent of water-based acrylic copolymer matrix resin, 0.5 to 0.7 weight percent of photoproduction acid agent, 0.2 to 0.4 weight percent of photosensitizer, 4.0 to 5.0 weight percent of active thinning gent, 1.0 to 2.0 weight percent of surfactant, 2.0 to 3.0 weight percent of inorganic filler and 70.0 to 72.0 weight percent of solvent. The invention also discloses a preparation method for the electro-deposition photoresist, which comprises the following steps of: 1) preparation of the water-based acrylic copolymer matrix resin; and 2) preparation of the photoresist. The invention also discloses a film forming method for the electro-deposition photoresist, which comprises the following steps of: filling the photoresist into an electro-deposition tank, and performing electro-deposition curing to form a film. The cost is low, the process is simple, and industrialization is easy.

The invention discloses a preparation method of a silane coupling agent containing allyl sulfydryl and amino and a usage thereof. The molecular structural formula of the silane coupling agent is (R1O)3-xSiR2xR3(NHR4)yNHz(SHCNH2NHCH2CH=CH2)m. The silane coupling agent is obtained through addition reaction of 1-2 mole allylthiourea and 1 mole silane coupling agent with the molecular formula of (R1O)3-xSiR2xR3(NHR4)yNH2, wherein R1 and R2 are straight chain or branched alkyl of same or different 1-6 carbon atoms, R3 is alkylidene and aryl of 1-6 carbon atoms or aryl alkylidene and alkyl arylene of 6-10 carbon atoms, and R4 is alkylidene of 1-6 carbon atoms, x is 0 or 1, y is 0, 1 or 2, z is 0 or 1, and m is 2-z. Compared with the traditional allyl monomer, the silane coupling agent can be used as active diluent monomer of ultraviolet curing prepolymer, the sulfydryl is contained in the molecule, the inhibition of the oxygen to the ultraviolet curing process can be effectively reduced, the ultraviolet curing speed is improved, the function of the silane coupling agent can be brought into play, and the adhesion function of the coating adhesive and the matrix is improved.

The invention relates to high performance UV ink and a preparation method and application thereof. The ink comprises, by weight, 25-45 parts of epoxy acrylate resin, 8-12 parts of saturated polyesterresin, 2-5 parts of methacrylate phosphate, 15-25 parts of 1,6-hexanediol diacrylate, 5-7 parts of tetrahydrofuran acrylate, 0.5-1 part of fumed silica, 3-5 parts of a photoinitiator, 0.5-1 part of toner, 25-40 parts of a filler and 1-3 parts of an auxiliary agent. The ink has good adhesion on a flexible substrate, is applied to a flexible electronic component, has no influence on the electrical conductivity of a conductive material such as conductive silver paste, and can well protect a conductive line and prevent oxidative discoloration of the conductive line.

The invention discloses low-viscosity high-reactivity low-volume-contraction modified dipentaerythritol acrylate and a preparation method thereof. The low-viscosity high-reactivity low-volume-contraction modified dipentaerythritol acrylate has a structural formula as shown in the specification. The degree of functionality of the low-viscosity high-reactivity low-volume-contraction modified dipentaerythritol acrylate is 6-9, the viscosity is 300-2000mPa.s, and the molecular weight is 750-2500, so that the low-viscosity high-reactivity low-volume-contraction modified dipentaerythritol acrylate has very high reactivity, lower viscosity, high molecular weight, low migration, high curing efficiency, low volume contraction rate, good adhesive force and adjustable flexibility, and a prepared coating is good in impact resistance and strong in adhesive force; and the preparation method disclosed by the invention is simple and easy to control, and an obtained product is high in purity and good in performance.

The invention discloses polyacrylic resin with side-chain modification of hybrid epoxy acrylate and a synthesis method. The polyacrylic resin is mainly prepared from the following raw materials: carboxylated polyacrylate, hybrid epoxy acrylate, an alkaline catalyst and a polymerization inhibitor. The method comprises the following steps of: mixing the carboxylated polyacrylate and the hybrid epoxyacrylate, adding the alkaline catalyst and the polymerization inhibitor in the heating process, carrying out insulated reaction till the acid value is 3-5 mgKOH/g, cooling and obtaining the polyacrylic resin. The polyacrylic resin disclosed by the invention has the advantages of low viscosity, fast photocuring speed, good adhesion of a cured coating film, high hardness and good flexibility and the like, can be used for the fields of flexible sealing ends and the like in production of paper, floors and liquid-crystal displays; the method is short in reaction time and low in cost and is suitable for industrial production.

The invention relates to a temperature-resistant thickening light-cured epoxy vinyl ester resin and a preparation method thereof, and specifically discloses an epoxy vinyl ester resin composition. Thecomposition comprises components (A) to (G). The invention also discloses a method for preparing the resin composition, and a resin product comprising the resin composition.