229 results about "Dual curing" patented technology

The invention relates to an insulating weather-resistant powder coating and a preparation method thereof, and belongs to the technical field of coatings, and the powder coating comprises composite modified resin, a dual curing agent, a functional filler, a polyacrylate leveling agent, fumed silica, a benzotriazole ultraviolet light absorber, polytetrafluoroethylene wax powder and the like. A core-shell structure of the composite modified resin is designed, high insulativity is kept through a silane modified epoxy core layer, a weather-proof barrier is provided through an acrylic acid shell layer, and the phase separation problem is solved through interface chemical bonding; a dual-curing mechanism is designed, and isocyanate and acrylic hydroxyl react to form an interpenetrating network while an epoxy core layer is cured by anhydride; a filler synergistic effect is designed, silane coupling agent modified nano boron nitride forms a three-dimensional heat-conducting insulating network, and rutile type titanium dioxide is coated with silicon dioxide, so that ultraviolet aging is resisted. All the components cooperate with one another, so that the coating has excellent insulativity, weather resistance, adhesiveness and the like at the same time.

The invention discloses a water-based multi-layer degradable self-polishing ship antifouling coating system and a preparation method thereof, and belongs to the field of marine anticorrosion and antifouling materials. The system is composed of a zinc-rich primer, a modified epoxy intermediate paint and a functionalized finish paint. The finish paint takes polyhydroxyalkanoate as a matrix, and integrates a self-stratification modifier capable of forming a silicon-rich top layer during curing and a latent dual-curing system capable of realizing normal-temperature curing through a synergistic effect. According to the present invention, the mixing mechanism of dynamic self-polishing and static fouling release is adopted, and the innovative curing technology is combined, such that the long working life, the excellent mechanical property and the long-acting antifouling ability are achieved. The drawing adhesive force of the system is not lower than 7.9 MPa, and the environment-friendly requirements that the content of volatile organic compounds is smaller than or equal to 50 g / L, and the content of free diisocyanate monomers is smaller than or equal to 0.1 wt% are met.

The invention discloses degradable tough epoxy resin with a cation-pi effect and a preparation method of the degradable tough epoxy resin. The epoxy resin is composed of multi-arm mercaptan containing ester groups, ionic liquid containing unsaturated double bonds and with the cation-pi effect and epoxy resin. According to the present invention, the multi-arm mercaptan containing the ester group, the unsaturated double bond ionic liquid and the epoxy resin can be combined through the light-heat dual curing process to construct the high toughness degradable epoxy resin system, and the whole method is green, simple and easy to operate. The energy dissipation capacity of the epoxy resin containing the cation-pi action is remarkably improved when the epoxy resin is stimulated by the outside, and cation-pi action sites uniformly dispersed in a network play a key role in the balance of rigidity and toughness under repeated loading-unloading circulation. Besides, ester groups in the structure enable the synthesized epoxy resin to have excellent degradation performance, hydrogen atoms in imidazole and the ester groups can form intermolecular hydrogen bonds, the degradation process of the resin is accelerated, and rapid degradation under the amine / alkaline condition is achieved.

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 embodiment of the invention provides a UV (ultraviolet) thermal dual-curing adhesive and a preparation method thereof. The UV thermal dual-curing adhesive comprises the following components in percentage by mass: 30-55% of a photocuring prepolymer; 5%-25% of an active diluent monomer; 1%-10% of a photoinitiator; 1%-20% of a thermal initiator; 10%-40% of a filler; 0.5%-5% of a coupling agent; 1%-10% of a thixotropic agent; 1%-10% of pigment; 2%-8% of an auxiliary agent; wherein the photocuring prepolymer comprises epoxy resin. According to the UV thermal dual-curing adhesive and the preparation method thereof provided by the embodiment of the invention, the dual-curing adhesive with low shrinkage and low thermal expansion coefficient is obtained by optimizing the structure of the photocuring prepolymer and matching the components, and the prepared adhesive can be rapidly cured under the irradiation of LED 365nm ultraviolet light, or can be thermally cured under the low-temperature condition of 80 DEG C, so that the UV thermal dual-curing adhesive can be widely applied to the field of ultraviolet curing. The product can resist high and low temperature cycle impact of-50 DEG C to 140 DEG C, and has a good application prospect.

The invention provides a UV-thermal dual-curing adhesive as well as a preparation method and application thereof, the UV-thermal dual-curing adhesive comprises epoxy resin, a photoinitiator, a thermal initiator and a filler in specific parts, and the filler comprises nano silicon dioxide with the D50 particle size of less than or equal to 100nm and silica powder with the D50 particle size of more than or equal to 0.5 mu m; the two silicon materials with different particle sizes are selected and matched to jointly form a filler to modify the epoxy resin, and meanwhile, the photoinitiator and the thermal initiator are added for initiation, so that the obtained adhesive can be subjected to UV-thermal dual curing, and the adhesive has excellent adhesive property and weather resistance after being completely cured.

The embodiment of the invention relates to the technical field of glass fiber mobile phone rear covers, and provides a glass fiber mobile phone rear cover and a manufacturing method thereof, and the method comprises the steps: 1, providing a base material which is a PET film; step 2, forming a release texture layer on the base material by using UV release glue; step 3, coating a dual-curing hardening liquid on the release texture layer, and carrying out baking and pre-curing treatment to form a hardening liquid layer; 4, forming a transfer printing inner texture layer on the hardening liquid layer by using UV transfer printing glue through a roll-to-roll transfer printing process; step 5, depositing a dielectric film layer of 30-300nm on the inner texture layer through magnetron sputtering; step 6, carrying out silk-screen processing on the dielectric film layer to form a silk-screen layer, and obtaining an initial thin film; and step 7, carrying out curing and mold pressing treatment on the prepared initial thin film to prepare the glass fiber mobile phone rear cover, so that the yield of the glass fiber mobile phone rear cover can be improved.

The invention relates to the technical field of adhesives, in particular to a dual-curing UV tackifying adhesive and a product thereof. The dual-curing UV tackifying adhesive is prepared from the following components in parts by weight: 73 to 92 parts of acrylate copolymer, 6 to 25 parts of UV polyester resin, 0.4 to 1.7 parts of thermal curing agent and 0.3 to 1 part of photoinitiator. According to the dual-curing UV tackifying adhesive disclosed by the invention, the components are compounded, so that the adhesive can be endowed with relatively low and appropriate bonding strength in a thermocuring stage, the bonding and positioning requirements are met, and the dual-curing UV tackifying adhesive can be stripped from an adhered object and has excellent reworkability; and after positioning, the bonding force between the adhesive and the pasted object is increased through UV illumination, so that the pasting effect of the adhesive on the pasted object is ensured.

The invention discloses a bionic anti-drag protective film based on a surface micro-nano structure and a preparation method of the bionic anti-drag protective film, and relates to the technical field of anti-drag film preparation. According to the preparation method, the high-strength nitrogen-containing thermoplastic polyurethane film layer with the flame retardant property is prepared, one layer is coated with the hyperbranched polyurethane coating, the drag reduction functional layer with the microstructure is formed through embossing and photo-thermal dual curing, and the hyperbranched polyurethane coating can form a high-density cross-linked network during curing, so that the drag reduction performance is improved; according to the present invention, the hyperbranched polyurethane coating material has characteristics of good mechanical property and good weatherability, the hyperbranched structure can assist in dispersion of shrinkage stress and maintenance of coating surface flatness during heating, and the hyperbranched polyurethane coating material further contains nitrogen rings so as to provide the coating material with certain fire resistance.

The invention relates to the technical field of organic adhesives, in particular to a dual-curing composition and a preparation method and application thereof. The dual-curing composition comprises an acrylic monomer, an acrylate oligomer, a photoinitiator, dual-curing resin, first epoxy resin and a modified curing agent, wherein the molecules of the dual-curing resin contain acrylate groups and epoxy groups at the same time; the modified curing agent comprises an amine curing agent and a prepolymer of second epoxy resin. According to the dual-curing composition disclosed by the invention, through compounding and synergistic interaction of the components, reactions such as carbon-carbon double bond polymerization, epoxy ring opening and amido addition are carried out under ultraviolet irradiation and normal temperature, so that dual curing is realized through cross-linking polymerization, and devices such as a perovskite battery and the like can be efficiently packaged. Wherein the dual-curing resin further increases the chain length of the polymer, so that a compact three-dimensional network structure is formed after the composition is cured, the moisture and gas blocking performance of the cured composition is improved, and the stability of a packaged device is improved.

The invention belongs to the technical field of polymer materials, and provides LED-moisture dual-curing organic silicon modified hyperbranched polyurethane acrylic resin as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, taking first polyhydric alcohol and polyatomic acid as raw materials, preparing a hyperbranched polyester prepolymer containing hydroxyl at the tail end through a first reaction, and further performing a second reaction with an isocyanate compound and second polyhydric alcohol to prepare a hyperbranched polyurethane prepolymer containing isocyanate groups at the tail end; the coating further prepared from the organosilicon modified hyperbranched polyurethane acrylic resin not only can be subjected to UV curing, but also can be subjected to LED curing and moisture curing, energy required by curing is low, curing is 100%, environment friendliness is achieved, VOC is zero, the flash point is 95 DEG C or above, the product curing speed is high, the viscosity is low, and the coating can be widely applied to the field of high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing, high-temperature curing and high-temperature curing. The paint has the advantages of good flexibility, good film-forming property, strong adhesive force and excellent weather resistance.

The invention belongs to the technical field of silica gel, and relates to alkoxy silane-terminated polysiloxane and a preparation method thereof, and the alkoxy silane-terminated polysiloxane comprises the following components in parts by weight: (A) 80-100 parts of polysiloxane containing at least one vinyl group in a molecule; (B) 2 to 20 parts of composite hydrogen-containing alkoxy silane; (C) 0.01 to 1 part of catalyst; and (D) 0.1 to 4.5 parts of activated carbon. The alkoxy silane-terminated polysiloxane can be suitable for various formula systems such as moisture curing, addition curing and UV / moisture dual curing of organic silicon products, is particularly suitable for being applied to formula systems which contain powder and have certain thixotropy, and regulates and controls the thixotropic property and the flowing property of the products while keeping certain viscosity.

The invention relates to a reaction type closed diamine chain extender, dual-curing photosensitive resin, a 3D printed part and a preparation method, the reaction type closed diamine chain extender is obtained through reaction of a diamine chain extender and a functional monomer, the functional monomer at least comprises a functional group A, a functional group B and a functional group C, the functional group A is an aldehyde group or a ketone group and is used for reacting with an amino group in the diamine chain extender; and a functional group B containing a photocurable unsaturated bond. The reactive closed diamine chain extender provided by the invention participates in a photocuring process, so that the strength of a material in a photocuring stage is improved, the product yield in a printing process is ensured, no by-product is generated during subsequent heat treatment, and the mechanical property of a final finished product is not influenced. The dual-curing photosensitive resin can be stably stored for a long time, the mechanical property of the material can be remarkably improved through the photocuring-heat treatment synergistic effect, and the dual-curing photosensitive resin can be used for photocuring 3D printing technologies such as sinking type SLA and pull-up type DLP and LCD at the same time.

The invention relates to the technical field of adhesives, in particular to a flexible circuit board covering film and a preparation method thereof.The covering film is composed of a release film, a photo-thermal dual-curing composition and a polyimide film from top to bottom; the photo-thermal dual-curing composition is prepared from the following components in parts by weight: 80 to 125 parts of acrylic acid prepolymer, 8 to 25 parts of benzoxazine-novolac epoxy resin, 0.1 to 10 parts of photoinitiator, 0.1 to 5 parts of photosensitizer and 10 to 100 parts of solvent I. Due to the existence of the photo-thermal dual-curing composition, the peel strength of the cover film after photo-curing and thermal curing reaches 1.4 N / mm; the benzoxazine-novolac epoxy resin is applied to the cover film of the flexible circuit board, so that the cover film has acid resistance and high temperature resistance; by controlling the glass-transition temperature of the acrylic prepolymer, the requirements of high peel strength and high weather resistance of the cover film are met at the same time, so that the properties of the cover film in all aspects reach a balanced state.

A single-component photothermal dual-curing epoxy adhesive. The raw materials, calculated by weight, include: 100 parts of an acrylic / polyurethane dual-modified epoxy resin, 10-40 parts of a low-viscosity epoxy resin, 8-30 parts of an epoxy curing agent, 30-300 parts of an inorganic filler, 2-30 parts of a dispersant, and 0.25-5 parts of a photoinitiator. This adhesive exhibits excellent photocuring activity, high toughness, and excellent high- and low-temperature resistance, while maintaining other properties. The photoinitiator in this system participates in the curing reaction, avoiding the degradation of the adhesive's mechanical and bonding properties due to initiator molecular migration. The adhesive also offers a flexible curing process and minimal curing shrinkage, meeting the weather resistance requirements of semiconductor packaging. This makes it an industrially viable epoxy adhesive for semiconductor packaging.

The invention belongs to the technical field of paint, and discloses UV-LED and moisture dual-curing three-proofing paint as well as a preparation method and application thereof. The UV-LED and moisture dual-curing three-proofing paint is prepared from a polyurethane acrylate prepolymer, an acrylate modified isocyanate prepolymer, a photoinitiator and an auxiliary agent, and the polyurethane acrylate prepolymer contains a carbamate group and an acrylate double bond. According to the UV-LED and moisture dual-curing conformal coating formed by matching the specific polyurethane acrylate prepolymer and the acrylate modified isocyanate prepolymer with other components, the problem of curing oxygen inhibition of a UV-LED ultraviolet lamp can be solved; secondly, a polyurethane chain segment is introduced, the adhesive force and the impact resistance are improved, a UV and moisture dual-curing mode is adopted, the adhesive can be cured in a shadow area, a cured adhesive film has the characteristics of flexibility and toughness, the excellent protection capacity is kept in a high-low-temperature impact environment or a high-temperature and high-humidity environment, and the good popularization prospect is achieved.

The invention discloses a dual-curing super-friction anti-skid stain-resistant matte finish paint coating, which is prepared from the following components in percentage by mass: 1 to 5 percent of dual-curing aliphatic polyurethane acrylate, 1 to 5 percent of fluorine modified epoxy acrylate, 15 to 25 percent of multifunctional aliphatic polyurethane acrylate, 1 to 5 percent of epoxy modified organic silicon resin, 20 to 30 percent of hexanediol diacrylate, 2 to 10 percent of dipentaerythritol triacrylate, 1 to 5 percent of epoxy modified organic silicon resin, 2 to 10 percent of dibutyl phthalate and the balance of water. The coating comprises the following components in percentage by weight: 10%-20% of modified silicon dioxide powder, 0.5%-4% of fluorine modified synthetic wax, 8%-15% of hard powder, 3%-10% of a photoinitiator and 1%-10% of an auxiliary agent. According to the invention, a more compact paint film is obtained by adopting a combined drying effect of UV curing and secondary curing, so that an expected stain-resistant effect is achieved, the addition amount of stain-resistant components can be reduced, an anti-skid effect is taken into account, and the cost is also higher in cost performance.

The single-component photo-thermal dual-curing epoxy resin three-proofing coating comprises the following raw materials in parts by mass: 100 parts of acrylic acid / organic silicon dual-modified epoxy resin, 8-25 parts of a diluent, 6-18 parts of an epoxy curing agent and 1-6 parts of a photoinitiator, the diluent is an acrylic acid glycidyl ether compound; the photoinitiator is an epoxy alkyl anthracene ether compound. The three-proofing coating disclosed by the invention has excellent adhesive force on a PCB (Printed Circuit Board), and has the characteristics of photo-initiation rapid curing and high toughness; the problem of molecular migration of the photoinitiator in the coating is avoided, and the weather resistance of the three-proofing coating is obviously improved.

The invention relates to organosilicone modified acrylic resin, a UV-thermal dual-curing adhesive and a preparation method of the organosilicone modified acrylic resin. The organosilicone modified acrylic resin is obtained by reacting a bifunctional acrylate monomer and modified polysiloxane under the action of a polymerization inhibitor 1 and a catalyst 1; the modified polysiloxane is obtained by reacting hydrogen-containing silicone oil, allyl glycidyl ether and 1, 4-cyclohexanedimethanol divinyl ether under the action of a polymerization inhibitor 2 and a catalyst 2. The adhesive prepared by matching the organic silicon modified acrylic resin with auxiliaries such as a monomer and an initiator can be subjected to UV-heat dual curing, the surface is dry and comfortable after curing, the sticky'oxygen inhibition 'phenomenon is avoided, and the adhesive has good hardness; the adhesive force with various base materials including PC, aluminum materials, glass and PET is good; the shear strength retention rate of each base material after double 85 1000 hours of aging is 70% or above; the appearance is not obviously changed in a high-temperature aging test, and better heat resistance is shown.

The invention relates to the field of layered composite fabrics, and discloses a cooling and heat-insulating layered composite fabric and a preparation method thereof. The composite fabric has a multi-layer structure of a coating and a fabric layer, silicon dioxide microsphere loaded maleic anhydride modified PVB and organic silicon modified polyurethane acrylate are introduced into the coating, a light-oxygen dual-curing system is constructed, and silicon dioxide, polyvinyl butyral and polydimethylsiloxane which are good in intrinsic infrared emission performance are introduced, so that the intrinsic infrared emission performance of the composite fabric is improved, and the intrinsic infrared emission performance of the composite fabric is improved. The cooling performance of the coating material is improved through multi-component synergism of nano Al2O3 with good heat reflection performance, and the cooling and heat insulation performance of the composite fabric is comprehensively improved by combining the excellent heat insulation performance of the special-shaped cross-section fibers in the fabric layer.

The invention relates to a low-shrinkage UV and moisture dual-curing adhesive and a preparation method, and belongs to the field of electronic adhesives, the low-shrinkage UV and moisture dual-curing adhesive comprises the following components by weight: 10-20 parts of urethane acrylate resin, 10-20 parts of a silane-terminated modified urethane acrylate polymer, 5-20 parts of a reaction type acrylate monomer, 1-5 parts of a curing agent, 1-5 parts of a curing agent, and 1-5 parts of a curing agent. The photoinitiator, the moisture scavenger, the catalyst, the filler, the fumed silica and the additive are sequentially arranged from 1 part to 2 parts, 0.5-2 parts, 0.5-1 part, 0.5-1 part, 0.5-1 part, 0.5-2 parts, 0-2 parts and 0.5-1 part. The UV and moisture dual-curing adhesive prepared by the invention has the advantages of extremely low curing shrinkage, high hardness and bonding strength, low thermal expansion coefficient and good storage stability, and is suitable for sealing of consumer electronics or an alignment process in the lens industry.

The invention relates to photo-thermal dual-curing hyperbranched resin, a synthesis method and an ultraviolet curing resin composition for 3D printing. The invention relates to a synthetic method of photo-thermal dual-cured hyperbranched resin. The synthetic method comprises the following steps: adding isocyanate and a catalyst 1 into a reaction kettle at 55-60 DEG C; 2, 2-dimethylolbutyric acid is dissolved in a diluent, then dropwise added and subjected to a heat preservation reaction until an intermediate product A1 is obtained; adding a catalyst 2, and continuously reacting at 65-70 DEG C to obtain an intermediate product A2; and cooling to 55-60 DEG C, dropwise adding a mixture of tert-butylaminoethyl methacrylate and a polymerization inhibitor, and carrying out a heat preservation reaction until the isocyanate value is less than 0.5% to obtain the photo-thermal dual-curing hyperbranched resin, which has the characteristics of low viscosity, high functionality, high activity and reduced volume shrinkage, can be used for preparing an ultraviolet curing resin composition for 3D printing, and has wide application prospects. The material has high rigidity and good toughness at the same time.

The invention provides a bio-based reusable light / moisture dual-curing polyurethane hot melt adhesive, which is characterized in that a novel bio-based modifier is synthesized through reaction of bio-based mustard oil and 2, 2 '-dithio-diyl diethylamine, and the bio-based modifier has a double bond, a dynamic disulfide bond and a thiourea bond which can be photo-cured, so that the light / moisture dual-curing polyurethane hot melt adhesive has the advantages that the light / moisture dual-curing polyurethane hot melt adhesive can be used for preparing the light / moisture dual-curing polyurethane hot melt adhesive, and the service life of the light / moisture dual-curing polyurethane hot melt adhesive is prolonged; the hot melt adhesive prepared by adopting the modifier not only has the characteristics of short curing time and high initial adhesion strength, but also has reusability, water resistance and heat resistance, belongs to a high-performance and environment-friendly hot melt adhesive, and has a great application prospect in the fields of electronic devices, precious metals and the like which need to be disassembled and recycled.

The invention belongs to the technical field of optical adhesives, and particularly relates to a high-refractive-index dual-curing adhesive as well as a preparation method and application thereof. The high-refractive-index dual-curing adhesive comprises a component A, a component B and a component C, wherein the component A comprises 40-80 parts of epoxy resin, 10-40 parts of first acrylic ester and 15-30 parts of first inorganic filler; the component B is prepared from 20 to 50 parts of second acrylic ester, 30 to 80 parts of second inorganic filler and 5 to 20 parts of curing agent; wherein the first acrylate at least comprises a (methyl) acrylate monomer containing one or more reactive groups, and the reactive groups are selected from hydroxyl, epoxy or carboxyl; the second acrylic ester is selected from any one or a combination of more of a (methyl) acrylic acid aryl ester monomer, a (methyl) acrylic acid alkyl ester monomer or a (methyl) acrylic acid alkyl ether ester monomer. The curing adhesive is a high-refractive-index optical adhesive which is stable in system and excellent in performance after being cured to form a film.

The invention discloses an ultraviolet room-temperature dual-curing polyurethane pouring sealant which is a double-component pouring sealant and comprises a component A and a component B. The component A comprises a curing agent, a plasticizer I, a flame retardant and a photoinitiator. The component B comprises polyol, a plasticizer II, UV resin, a UV monomer and an auxiliary agent, and the photoinitiator contains hydroxyl. Ultraviolet and room temperature dual curing is adopted, the curing speed is increased, the bonding efficiency is improved, the hydroxyl-containing initiator, isocyanate and a reaction system act together, small molecules in a cured product are reduced, and the product performance is further improved.

The invention discloses an anti-edge-warping dual-curing coating for a curved surface and a composite film. The dual-curing coating is prepared from the following raw materials in parts by weight: 30-70 parts of hydroxyl-containing modified acrylate, 20-50 parts of an acrylic monomer with the functionality greater than or equal to 3, 0.1-1 part of a flatting agent, 20-40 parts of a solvent, 0.01-0.5 part of a catalyst, 2-15 parts of a curing agent and 3-7 parts of a photoinitiator. The composite film comprises a shaping layer, and the shaping layer is formed by curing the anti-edge-warping dual-curing coating for the curved surface. Compared with the prior art, the double-curing coating has ultrahigh hardness and low shrinkage rate after curing, and after UV curing, the whole structure of the composite film can be driven to be matched with the curved surface direction of the curved screen to be bent inwards and shaped, so that the high-molecular base material layer is effectively prevented from bouncing back and warping.

The present invention belongs to the field of polyurethane hot melt adhesives, and relates to a carbon dioxide-based reactive polyurethane hot melt adhesive and a preparation method thereof. The carbon dioxide-based reactive polyurethane hot melt adhesive comprises the following components in parts by weight: 10-50 parts of unsaturated carbon dioxide-based polycarbonate polyol, 5-25 parts of polyester polyol, 6-35 parts of polyether polyol, 4-30 parts of polyisocyanate, 5-25 parts of tackifying resin, 0.5-2.5 parts of a first free radical photoinitiator, and 0.1-2 parts of a first catalyst. The carbon dioxide-based reactive polyurethane hot melt adhesive provided by the present invention contains a carbon dioxide-based polycarbonate polyol having a six-membered ring, an amino group, and an unsaturated carbon-carbon double bond. This special structure can not only achieve ultraviolet curing and meet the requirements for rapid positioning in the electronic field, but also improve the adhesion performance and heat and moisture resistance of the polyurethane hot melt adhesive. In addition, the unsaturated carbon dioxide-based polycarbonate polyol uses carbon dioxide as a raw material, which is more environmentally friendly and meets the goal of green development.

The invention discloses a UV-CIPP material for pipeline repair and intelligent water level monitoring and a preparation method of the UV-CIPP material, and belongs to the technical field of ultraviolet curing pipeline repair. The preparation method comprises the following steps: selecting a proper amount of MWCNTs solution; the woven glass fibers are put into the dipping solution to be soaked; coating a conductive silver adhesive on the woven glass fiber, and pasting a copper electrode; adding a thermal initiator into the ultraviolet curing resin; pouring the resin into a mold, and laying woven glass fibers; and carrying out ultraviolet light curing and thermocuring on the prefabricated member. By introducing the MWCNTs impregnated woven glass fiber sensing layer and adopting ultraviolet light / heat dual curing, the intelligent pipeline composite material with ultrahigh strength and ultrahigh sensing capacity is formed, and the change of the water level in a pipeline can be monitored in real time while the pipeline is repaired.

The invention relates to the technical field of resin materials, in particular to photo-thermal dual-curing 3D printing ink and a preparation method and application thereof.The photo-thermal dual-curing 3D printing ink is prepared from, by weight, 30-60 parts of acrylate monomer, 10-30 parts of photoinitiator, 5-10 parts of photoinitiator, 1-5 parts of photoinitiator, 1-5 parts of photoinitiator, 1-5 parts of photoinitiator and 1-5 parts of photoinitiator. 40 to 70 parts of a reactive diluent; 3 to 10 parts of a photosensitive isocyanate monomer; and 2-5 parts of a photoinitiator. The photosensitive isocyanate monomer is introduced into the raw materials to obtain a dual-curing system, so that the 3D printing ink can be subjected to photocuring molding and then subjected to heat treatment to form an interpenetrating polymer network (IPN) structure, and the inevitable step effect in the photocuring 3D printing process is improved, so that the structural anisotropy is reduced, and the 3D printing quality is improved. The mechanical property of the material is improved.

The invention relates to the field of water-based UV (ultraviolet) antistatic coatings, in particular to a water-based UV antistatic coating which comprises 40-60 parts of water-based acrylic resin; 5 to 10 parts of tung oil; 5 to 10 parts of rosin resin; a preparation method of the functional film; the method comprises the following steps: 1, preparing a coating, 2, adjusting the state of the coating, and 3, curing to form a film. According to the water-based UV coating, the water-based acrylic resin, the tung oil and the rosin resin are adopted as main constituent materials of the coating, and other additives also adopt low-toxicity and low-irritation environment-friendly materials, so that the prepared water-based UV coating can reduce the VOC emission of the coating and improve the green and environment-friendly properties of the coating, and by adding the antistatic agent and the antistatic monomer into the coating, the anti-static property of the coating is improved. The surface resistance of the coating can be effectively reduced, the antistatic effect of the coating can be kept for a long time, and the coating is ensured to reach an ideal curing state in a short time by adopting a light-heat dual-curing mode when the coating is cured to form a film.