148 results about "Oligoester" patented technology

The invention relates to the technical field of paint spraying, and particularly discloses a mosaic gold aerosol paint and a preparation method thereof. The painted gold aerosol paint comprises the following raw materials in percentage by mass: 30-40% of acrylic resin, 20-30% of a solvent, 5-15% of painted gold powder, 0.5-1% of a dispersing agent, 30-40% of a propellant and 0.5-2% of other auxiliaries. The dispersing agent comprises a star-shaped PEG polymer, an alkyl diphosphonic acid compound and macrocyclic oligoester. The mosaic gold aerosol paint has the advantages of being capable of being stored for a long time and not prone to oxidation and layering, can present colorful metallic paint after being coated and has different metallic color effects at different angles, and the appearance aesthetic feeling of a coated object is remarkably improved.

The invention discloses an organic silicon modified polyurethane-acrylate composite emulsion and a preparation method of the organic silicon modified polyurethane-acrylate composite emulsion, and relates to the technical field of polymer composite emulsions. Comprising the following raw materials: 70 to 120 parts of oligomer polyol with an average molecular weight of 500 to 2000, 5 to 15 parts of a composite organosilicon component, 40 to 80 parts of diisocyanate, 0.05 to 0.2 part of a catalyst, 2 to 5 parts of a hydrophilic chain extender, 3 to 6 parts of a self-crosslinking hydrophilic chain extender, 4 to 12 parts of a neutralizer, 2 to 8 parts of a water-based chain extender and 50 to 150 parts of an acrylate monomer. 1-5 parts of an acrylate functional monomer, 1-3 parts of a cross-linking agent, 2-8 parts of an emulsifier and 0.5-3 parts of an initiator; the organic silicon modified polyurethane-acrylate composite emulsion prepared by the invention has a composite core-shell structure taking organic silicon modified polyurethane as a core and an acrylate polymer as a shell, so that the emulsion can form a more compact and more stable three-dimensional cross-linked network during film formation, and the weather resistance, water resistance, mechanical strength and surface glossiness of a coating film are remarkably improved.

Provided is an ink composition for ultraviolet-curable inkjet printing comprising polymerization components, a resin component, and a photopolymerization initiator, wherein the polymerization components include (A) a polyfunctional amine-modified oligomer, (B) a nitrogen-containing monomer, (C) an aromatic ring-containing monomer, and (D) a polyfunctional monomer, wherein the resin component includes a hydroxyl group-containing resin, wherein (A) comprises an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, wherein (B) comprises vinyl caprolactam, wherein (C) comprises benzyl acrylate and phenoxyethyl acrylate, wherein (D) comprises at least one of propoxylated neopentyl glycol diacrylate, dipropylene glycol diacrylate, or 1,6-hexanediol diacrylate, wherein a content of (A) is 0.1 to 13.0% by mass, wherein a content of (C) is 35.0 to 75.0% by mass, wherein a content of (D) is 2.0 to 16.0% by mass, and wherein the hydroxyl group-containing resin includes a ketone resin having a hydroxyl group.

The invention discloses a high-adhesion UV LED coating composition and a preparation method thereof. The high-adhesion UV LED coating composition is prepared from the following raw materials in parts by weight: 50 to 70 parts of composite oligomer, 90 to 120 parts of composite reactive diluent, 1.5 to 2.5 parts of composite photoinitiator, 0.8 to 1.8 parts of composite adhesion promoter, 5 to 15 parts of inorganic filler, 0.6 to 1.5 parts of fluorine-modified acrylate flatting agent and 0.1 to 0.7 part of light stabilizer. The UV LED coating composition disclosed by the invention can be well combined with untreated low-polarity plastic, smooth metal surfaces and the like, has high adhesive force and is not easy to peel off after being subjected to external force.

The application discloses a glass fiber direct yarn impregnant and a preparation method thereof. The glass fiber direct yarn impregnant comprises effective components and water; the solid content of the impregnant is 5-12%, the effective components comprise a silane coupling agent, a film forming agent A, a film forming agent B and a lubricant, and the percentage of the solid mass of each effective component of the impregnant in the total mass of the solid of the impregnant is shown as follows: the silane coupling agent is 20-30%, the film forming agent A is 31-40%, the film forming agent B is 24-35%, the film forming agent A+the film forming agent B is 55-75%, and the lubricant is 5-15%; wherein the silane coupling agent is a bisamino silane oligomer, the film forming agent A is an isocyanate polymer, and the film forming agent B is an amide polymer. The glass fiber untwisted roving treated by the impregnant has stronger applicability of the glass fiber reinforced material for battery protection plates, the impact performance of the product is obviously improved, the bending performance is outstanding, and the market and application requirements are met.

The invention discloses a process for preparing functional master batch from waste textile recycled polyester, which comprises the following steps: S1, crushing waste polyester fabric into small fabric materials, and aggregating to obtain foam materials; s2, carrying out pre-alcoholysis on the soaked material, and filtering for the first time to obtain a pre-alcoholysis product; s3, carrying out total alcoholysis on the pre-alcoholysis product, and filtering for the second time to obtain an alcoholysis product; s4, carrying out adsorption treatment on the alcoholysis product, and carrying out pre-polycondensation to obtain an oligomer melt; s5, filtering the oligomer melt for the third time, and performing final polycondensation to obtain a final polycondensation melt; and S6, the final polycondensation melt is filtered for the fourth time, functional powder is added, uniform mixing, pelletizing, packaging and discharging are conducted, the regenerated functional master batch with more comprehensive performance and more stable quality is finally obtained, and recycling of the waste polyester textiles is achieved.

The invention relates to a UV-LED blue paint for protecting a power battery shell, a preparation method and a coating applied by the UV-LED blue paint, and belongs to the technical field of paints. The UV-LED blue coating is prepared from the following components in parts by weight: 5 to 15 parts of a polybutadiene modified acrylate oligomer, 20 to 40 parts of a bisphenol A epoxy acrylate oligomer, 35 to 50 parts of a monofunctional reactive diluent, 5 to 15 parts of a bifunctional reactive diluent, 3 to 10 parts of a multifunctional reactive diluent, 4 to 7 parts of a photoinitiator, 0.6 to 2.2 parts of an auxiliary agent and 1 to 3 parts of blue color paste, the monofunctional reactive diluent is prepared from the following components in parts by weight: 30 to 40 parts of isobornyl-containing acrylate and 5 to 10 parts of lauric acid acrylate. A blue coating formed by the blue coating has good adhesive force, excellent electrolyte resistance and boiling resistance and low viscosity, so that the blue coating can be subjected to mass production through spraying, the curing speed is high, and the production efficiency is improved.

The present invention relates to a method suitable for recovering textile waste comprising a polyester yarn containing a dye, the method comprising: a first step in which the polyester yarn is treated with a solvent to extract a portion of the dye from the polyester yarn; a second step in which the solvent-treated polyester yarn is subjected to a process in which the polyester is depolymerized into an oligoester consisting on average of between 3 and 30 monomeric units wherein the remainder of the dye is removed from the oligoester by adsorption to particulate matter in a mixture with the oligoester; and a third step in which the oligoester is separated from the particulate matter comprising the adsorbed dye, thereby providing a decolorized oligoester suitable for repolymerization, consisting on average of between 3 and 30 monomeric units.

The invention relates to the technical field of polyester fiber processing, in particular to a quick-drying deodorizing antibacterial antistatic polyester fiber and a preparation method thereof. The invention discloses a modified PET (Polyethylene Terephthalate) composite material, which is prepared from the following raw materials in parts by weight: 100 parts of PET, 4 to 8 parts of functional master batch, 5 to 8 parts of epoxy functionalized styrene-acrylate oligomer, 10 to 20 parts of silane coupling agent modified montmorillonite, 5 to 8 parts of hydroxypropyl-beta-cyclodextrin loaded porous silicon dioxide microspheres, 1 to 2 parts of sulfoisophthalic acid metal salt and 2 to 4 parts of dispersing agent. The multifunctional master batch is prepared from the following raw materials in parts by weight: 65-75 parts of PET polyester chips, 8-12 parts of epoxy-terminated hyperbranched polyester, 3-5 parts of a sulfonate antistatic agent and 2-4 parts of an antibacterial agent, through the formula, balanced integration of moisture absorption, quick drying, lasting deodorization, efficient antibacterial and antistatic functions is realized, the function retention rate is improved after multiple times of washing, and the antibacterial property is improved. The defects of single function and poor durability of an after-treatment mode are overcome, and the development requirements of modern textiles on multi-functionalization and high quality are met.

A polyester resin composition exhibits high heat resistance, low gas content, and the ability to significantly suppress mold contamination during continuous molding and to inhibit flow marks. The polyester resin composition comprises: a polyester resin A containing 82-88% by mass of polybutylene terephthalate resin and 12-18% by mass of polyethylene terephthalate resin; an organometallic acid salt B, selected from one or both of alkali metal organometallic acid salts and alkaline earth metal organometallic acid salts; 1-13 parts by mass of an inorganic filler C with an average particle size of 0.05-3 μm relative to 100 parts by mass of the polyester resin A; and 0.000005-0.05 parts by mass of one or both of alkali metal atoms and alkaline earth metal atoms relative to 100 parts by mass of the polyester resin A; and the content of linear oligomers such as polybutylene terephthalate is less than 1000 mg / kg.

The invention discloses a method for preparing a PA6 / 56 bio-based copolyamide fiber through melt direct spinning, which comprises the following steps: mixing raw materials containing a caprolactam solution, a PA56 salt solution and a molecular weight regulator, preheating, carrying out prepolymerization reaction and polycondensation reaction to obtain a PA6 / 56 copolymer melt, and carrying out devolatilization to obtain a PA6 / 56 devolatilization melt; and carrying out melt spinning on the PA6 / 56 devolatilization melt to obtain the PA6 / 56 bio-based copolyamide fiber. According to the invention, bio-based 1, 5-pentamethylene diamine is adopted as a raw material of PA56, preheating and pre-polycondensation are firstly carried out after configuration, then polycondensation is carried out to further increase the number-average molecular weight of a nylon 6 prepolymer, and the obtained copolymer melt is in a molten state. Low polymers of the copolymer are removed through the devolatilization reactor, liquid phase extraction of PA6 / 56 is achieved, the extractable matter content of the obtained copolymer melt is smaller than or equal to 2 wt%, the technological process is simplified, and the production cycle, the equipment investment cost and the production energy consumption are greatly reduced.

Disclosed is a positive electrode for a full solid battery, a positive electrode composition, and a full solid battery including the positive electrode, the positive electrode for a full solid battery including a current collector and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer includes: a positive electrode active material; a sulfide-based solid electrolyte; a dispersion medium including a compound represented by Chemical Formula 1; a binder; an electrolyte salt; at least one of a monofunctional or higher functional (meth)acrylate having an alkylene glycol group, an oligomer thereof, and a crosslinked product thereof; and a conductive material.

The application discloses a hydrolysis-resistant antiskid polyurethane material and a preparation method and application thereof, and relates to the technical field of polyurethane materials. The hydrolysis-resistant antiskid polyurethane material disclosed by the application comprises the following components: A component, which is a polyester type acrylate polyol, an aromatic isocyanate and an organic tin catalyst; a B component, which is an epoxy group modified polyether polyol, triethylene tetramine, a nitrogen-containing catalyst, water, a foam stabilizer, TPE microparticles and modified wollastonite; and a C component, which is a hydroxyl-terminated polybutadiene; the modified wollastonite is prepared by modifying wollastonite with a polyacrylate oligomer. The hydrolysis-resistant antiskid polyurethane material provided by the application is prepared by using a semi-prepolymer method, the preparation process is easy to control, the processing performance is stable, the material has excellent mechanical strength, toughness and resilience, and the material has excellent hydrolysis resistance, high and low temperature resistance, wear resistance, antiskid property, aging resistance and other properties; the material can be used for a long time under harsh conditions such as humidity or low temperature, and the service life of the material when applied to a shoe sole material is improved.

The present application relates to the technical field of polyester fiber, in particular to an antibacterial and ultraviolet resistant polyester fiber and a melt spinning preparation method thereof. The fiber is prepared by melt spinning of antibacterial and ultraviolet resistant functional master batch and PET chip; the functional master batch is made of PET chip, interfacial directional compatibilized nano zinc oxide and hydroxyl-terminated low molecular weight PET oligomer. The interfacial directional compatibilized nano zinc oxide is combined by nano zinc oxide with silicon-containing surface compound and carboxyl-rich low molecular weight polyester affinity segment, and the carboxyl-rich low molecular weight polyester affinity segment is obtained by reaction of hydroxyl-terminated low molecular weight PET oligomer and 1,2,4-benzene tricarboxylic anhydride. The present application improves the dispersibility and interfacial stability of nano zinc oxide in PET melt by low-silicon surface regulation, polyester affinity segment anchoring and delayed addition of hydroxyl-terminated low molecular weight PET oligomer in the functional master batch stage, so that the fiber has antibacterial, ultraviolet resistant, spinnable and washable functions.

A process for the liquefaction of cellulose, said process comprising:providing a source of cellulose; wherein said source of cellulose comprising cellulose and hemicellulose, wherein said source of cellulose is non-flowable;adding said source of cellulose to a mixing vessel; wherein said mixing vessel comprises a mixing apparatus selected from the group consisting of: a horizontal single helicoid auger flight; a horizontal double helicoid auger flight; a vertical single helicoid auger flight; a vertical double helicoid auger flight; a horizontal single ribbon auger flight; a horizontal double ribbon auger flight; a vertical single ribbon auger flight; a vertical double ribbon auger flight; a horizontal single sectional auger flight: a horizontal double sectional auger flight; and a vertical single sectional auger flight; a vertical double sectional auger flight;adding a solution to said mixing vessel containing said source of cellulose to yield a reaction mixture wherein said source of cellulose is present in a concentration of solids ranging from 5% to 50% of the total mass of said reaction mixture;mixing said reaction mixture in said mixing vessel until said reaction mixture has undergone liquefaction to yield a resulting mixture comprising oligomers and monomers from the degradation of cellulose and hemicellulose and wherein said resulting mixture has a resulting viscosity of no more than 15 Pa·s; andoptionally, separating said resulting mixture into a liquid stream used for subsequent processing and a solid stream that is introduced back into the mixing vessel for further processing.

This invention discloses a high-toughness photosensitive resin composition and its preparation method. The high-toughness photosensitive resin composition comprises, by weight, 52-58 parts of epoxy resin oligomer; 22-28 parts of acrylate oligomer; 4-6 parts of polyurethane acrylate; 0.3-0.4 parts of DOQDS with surface-grafted acrylate groups; 1.5-2.5 parts of surface-modified nano-silica; 0.6-0.8 parts of fumed silica; 3.4-4.5 parts of core-shell toughened epoxy resin; 6.5-7.5 parts of photoinitiator; 6-9 parts of reactive diluent; and 0.1-0.2 parts of imidazole catalyst. In this application, the GOQDs in the photosensitive resin composition are embedded in the epoxy resin backbone through chemical bonding rather than physical mixing. After the photosensitive resin is cross-linked, the flexible core layer of the core-shell toughening resin can improve the network's extensibility through chain segment slippage. Under stress, it assists the network in buffering stress and promoting chain segment movement. The GOQDs are dispersed in the cross-linked network as "reinforcing points," enhancing the network's rigidity and inhibiting chain segment movement. The GOQDs can work synergistically with the core-shell toughening resin to achieve the technical effect of reinforcement and toughening.

The invention relates to an aqueous polymer dispersion and its preparation. The dispersion comprises a styrene acrylate polymer, which is obtainable by free-radical polymerisation of 1-90 weight-% of monomer (a), which comprises at least one optionally substituted styrene; 10-99 weight-% of monomer (b), which comprises at least one alkyl (meth)acrylate, and 0-9 weight-% of monomer (c), which comprises at least one ethylenically unsaturated monomer, which is different from monomer (b). The polymerisation is conducted in a polymerisation medium comprising a cationic prepolymer, which is obtainable by free radical polymerisation of at least 10-55 weight-% of a monomer (i), which comprises at least one ethylenically unsaturated quaternary and / or tertiary amine, 35-90 weight-% of a monomer (ii), which comprises at least one optionally substituted styrene, and 0-55 weight-% of a monomer (iii), which comprises at least one alkyl (meth)acrylate. The oligomer content in the polymer dispersion is ≤1.4 weight-%, calculated from the dry polymer content.

Role of a cleaning textile for cleaning printing cylinders of a printing system, wherein the cleaning textile is impregnated with a cleaning agent composition, the cleaning agent composition comprising an organic solvent and a cellulose solubilizer, wherein the organic solvent is a propylene glycol oligomer, which is di(propylene glycol)propyl ether, and wherein the roller (12) is inserted into a removable sealing bag (15) which is designed to seal the roller (12) of cleaning textile (13) in order to prevent the cleaning agent composition from evaporating before use, wherein the sealing bag (15) is tubular and is made of a multilayer plastic film.

The utility model relates to the technical field of condensers, and discloses a miniature scraper condenser device which comprises a condensing device and a scraper assembly, the condensing device comprises a machine body, an air inlet pipe, a liquid discharge pipe, an exhaust pipe and a spray pipe, the right side of the air inlet pipe is fixedly communicated with the left side of the machine body, and the liquid discharge pipe is communicated with the spray pipe. By arranging the condensing device, the machine body, the air inlet pipe, the liquid discharging pipe and other structural components, steam is condensed through the condensing device, the steam is driven to flow through the scraper assembly, the condensing efficiency of the steam is improved through the spraying assembly, the cleaning assembly is driven to move through the lifting assembly, and the cleaning efficiency is improved. The surface of the scraper blade is cleaned through the cleaning assembly, the effect of conveniently cleaning attachments condensed on the surface of the scraper blade is achieved, and the problems that the scraper blade is in contact with steam and low polymer substances attached to the steam, the scraper blade needs to be manually cleaned, manual cleaning consumes long time, and the working efficiency is reduced are solved.

This invention relates to the field of bio-based polyamide synthesis technology and discloses a polycondensation preparation process for high-strength bio-based polyamide denim yarn fibers. The process includes: adding bio-based diacid, diamine, and lignin-derived triamine into a reactor and pre-condensing at 210°C to 230°C to generate oligomers; in the deep polycondensation stage, self-flash disturbance is induced by periodically adjusting the vacuum level to drive the uniform migration of branched modified components; when the stirring torque reaches the preset maximum process torque value, vanillic acid monoester is added for end capping. This invention utilizes pulsed pressure fluctuations to break the mass transfer resistance of the high-viscosity system, ensuring uniform distribution of branched nodes throughout the entire domain. The constructed isotropic topological network is based on the shear-thinning characteristics of the product and forms a three-dimensional stress diffusion system in the fibrous state, improving load transfer efficiency and avoiding the risk of fibrillation in denim fabrics under heavy washing conditions.

The application discloses a kind of carbon fiber composite material for body bonding forming method, belong to composite material bonding technical field.The application is first to the carbon fiber composite material to be bonded surface is polished, wipe pretreatment, then prepare modified epoxy resin adhesive: hydroxyl hexagonal boron nitride nanosheet and epoxy group polysiloxane oligomer occur dehydration condensation reaction, obtain polysiloxane oligomer modified boron nitride material;Bisphenol A type epoxy resin E-51, polysiloxane oligomer modified boron nitride material, curing agent and curing accelerator are mixed evenly, vacuum defoaming, obtain modified epoxy resin adhesive;Adhesive is evenly scraped and coated on the surface of composite material, after docking and adhering, gradient temperature curing is completed, and bonding forming is completed.The application solves the defects that carbon fiber bonding interface strength is low, adhesive layer toughness and heat resistance imbalance, poor heat and humidity resistance and heat dissipation performance, synergistically improves the mechanical properties of bonding structure, environmental stability and process environmental friendliness.

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture.A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprisesa first intermediate product and;the further organic compound.First particulated material is added to the first intermediate mixture in a volume section V4.A temperature of the first intermediate mixture in the volume section V4 is in the range of 160° C. to 230° C.

The invention discloses a rosin graft copolymer and a preparation method thereof, and the preparation method comprises the following steps: mixing a hydroxyl-containing compound, an organosilicon polymer and an acidic compound for esterification reaction to obtain a poly-organosilicon cross-linking agent; the organic silicon polymer comprises one or more of a carboxyl organic silicon prepolymer, a double-end single-hydroxyl organic silicon prepolymer, a single-end double-hydroxyl organic silicon prepolymer or a hydroxyl organic silicon oligomer; and mixing the polyorganosilicone cross-linking agent, epoxy resin and first-grade rosin for grafting reaction to obtain the rosin grafted copolymer. According to the rosin grafted copolymer containing the polyester cross-linking agent, the polyester cross-linking agent is mainly used for fully cross-linking the rosin grafted copolymer, and the rosin grafted copolymer containing the polyester cross-linking agent has high molecular weight and softening point and good oil solubility; the purpose of adding the polyorganosilicone is to improve the dispersibility of the resin to pigments and fillers and the wettability and the printability of the resin to a substrate.

Provided is an oligoester which is obtained by subjecting the following to an esterification reaction: component (A), a glycerin; component (B), a dicarboxylic acid having 2-12 carbon atoms; and component (C), one or more types of fatty acid selected from the group consisting of caprylic acid, ethylhexanoic acid, isononanoic acid, isopalmitic acid and isostearic acid. The esterification reaction involves esterifying 0.65-0.8 moles of the component (B) and 1.2-1.7 moles of the component (C) relative to 1 mole of the component (A). The oligoester has an acid value of 5 mgKOH / g or less, a saponification value of 420-510 mgKOH / g and a hydroxyl value of 60 mgKOH / g or less.

The invention belongs to the field of thick film electronic element manufacturing, and particularly relates to chip resistor MK layer UV curing slurry and a preparation method thereof. The problems that an existing UV curing protective layer is insufficient in heat resistance, and cracking and falling are caused by mismatching of thermal expansion coefficients are solved. Through an epoxy-organic silicon hybrid resin system and a composite functional filler, the resin system comprises trimethylolpropane triacrylate, hexanediol diacrylate, an epoxy acrylate oligomer, an organic silicon modified acrylate oligomer, a phosphorus-containing acrylate functional monomer and a thermal polymerization inhibitor, and the functional filler is prepared from modified spherical aluminum oxide, modified silicon dioxide, a photoinitiator, a photoinitiator, a photoinitiator, a photoinitiator, a photoinitiator and a photoinitiator. According to the invention, the thermal shock resistance and insulation reliability of the protective layer are improved while the high efficiency of the UV photocuring process is maintained.

The invention relates to the technical field of advanced ceramic material additive manufacturing, in particular to high-entropy ceramic slurry for photocuring forming and a preparation method of the high-entropy ceramic slurry, and the slurry is prepared from the following raw materials in parts by mass: 55-75 parts of high-entropy ceramic powder, 20-35 parts of reactive diluent, 10-20 parts of oligomer, 1-3 parts of photoinitiator, 2-4 parts of dispersing agent and 0.1-0.5 part of defoaming agent. The high-entropy ceramic powder with specific particle size distribution is adopted, and the synergistic combination of the water-based resin system and the dispersing agent is preferably selected, so that the technical problems of high viscosity and poor stability of the high-solid-content ceramic slurry in photocuring printing are effectively solved. The prepared slurry has the characteristics of high solid content, low viscosity, good storage stability, high curing rate and the like, is suitable for 3D printing processes such as surface projection photocuring and the like, and can be used for obtaining high-precision and high-density complex-structure high-entropy ceramic parts after printing, degreasing and sintering.

The present disclosure relates generally to modified styrene-maleic anhydride copolymers and lubricants containing them. In various embodiments the disclosure provides a polymer composition that is a reaction product of components comprising: 35-60 parts by weight of a styrene / maleic anhydride copolymer, wherein the styrene / maleic anhydride copolymer comprises: 40-80 wt% styrene residues, and 20-60 wt% maleic anhydride residues, each based on a total weight of the styrene / maleic anhydride copolymer, at least 80 wt% of the styrene / maleic anhydride copolymer being formed of residues of styrene and maleic anhydride; 30-60 parts by weight of a C8-C24 hydrocarbyl primary amine component; and 0.5-5 parts by weight of a polyethyleneimine oligomer component, wherein a total amount of styrene residues, maleic anhydride residues, C8-C24 hydrocarbyl primary amine residues and polyethyleneimine oligomer residues is at least 80 wt% of the polymer composition.

The invention relates to the technical field of 3D printing materials, and discloses 3D printing resin and a preparation method thereof. The adhesive comprises the following components in percentage by mass: 40-70% of a polyurethane acrylic resin oligomer containing a latent isocyanate group; 15%-50% of a reactive diluent; 3%-8% of a curing agent; 0.5%-10% of a photoinitiator; 0.1%-1.2% of an ultraviolet absorbent; 0.05%-0.2% of a defoaming agent; 0.5%-5% of a dispersant; 0.1%-0.5% of an antioxidant; wherein the curing agent is solid hydrazide of which the surface is modified by a surfactant. The preparation method comprises the following steps: taking a polyurethane acrylic resin oligomer containing a latent isocyanate group, adding the reactive diluent, uniformly stirring, then adding the photoinitiator, the ultraviolet absorbent and the sensitizer, uniformly stirring, then adding the dispersing agent and the curing agent, uniformly stirring, then adding the flatting agent, the defoaming agent and the antioxidant, uniformly stirring, and finally adding the curing agent, the flatting agent and the antioxidant. And finally, rolling and grinding. The 3D printing resin provided by the invention has excellent mechanical properties and long-term weather resistance, and can maintain room temperature storage stability as long as 6 months.