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450 results about "Reactive diluent" patented technology

Reactive diluents are substances which reduce the viscosity of a lacquer for processing and become part of the lacquer during its subsequent curing via copolymerization. Diluents (or thinners) are usually added to lacquers to reduce their viscosity (they are used to adjust the rheology). In thermal cured lacquers, such diluents added are volatile substances which evaporate from the lacquer during drying. In the case of radiation-curing lacquers (for example UV lacquers), those diluents should be avoided. The addition of reactive diluents facilitates the processing of the lacquers, allows the addition of more fillers and improves the wetting behavior on the substrate. If volatile diluents are replaced by reactive diluents, flammability, smell, skin irritation and environmental compatibility (by lower or no VOC emissions) can be improved.

Preparation method of natural fiber prepreg for improving impregnation effect

The invention discloses a preparation method of a natural fiber prepreg with an improved impregnation effect, and relates to the technical field of composite material preparation, the method comprises the following steps: carrying out synergistic modification through fiber surface plasma activation and silane grafting, and combining a gradient pressure-temperature coupling impregnation system and ultrasonic-assisted permeation to prepare the natural fiber prepreg with the improved impregnation effect. And gradient filling and interface chemical bonding strengthening of the resin in the fiber bundle are realized. The core process comprises the following steps: pretreating fibers to improve surface energy and roughness, introducing a reactive diluent and a block copolymer into a resin system to regulate and control viscosity and transport capacity, constructing a pressure gradient by a multi-stage compression roller to drive resin to permeate into a bundle core, promoting uniform impregnation by infrared temperature control and ultrasonic cavitation, and finally obtaining uniform resin distribution and porosity lt. The interlayer shear strength is gt; and the high-performance prepreg is stable in batch under the pressure of 45 MPa. Reliable technical support and process guarantee are provided for large-scale engineering application of the high-performance natural fiber composite material.
Owner:宿州学院

UV thermal dual-curing adhesive and preparation method thereof

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.
Owner:SHENZHEN EUBO NEW MATERIAL TECH

High-toughness conductive and thermal-conductive epoxy glue, preparation method thereof and conductive film

The invention discloses a high-toughness conductive and thermal-conductive epoxy adhesive, a preparation method thereof and a conductive film, and belongs to the technical field of conductive materials. Comprising the following raw material components in parts by weight: 100 parts of epoxy resin, 4-25 parts of a latent curing agent, 0.5-5 parts of an accelerant, 200-600 parts of conductive filler, 5-15 parts of an epoxy-terminated polyurethane flexibilizer, 5-20 parts of a core-shell flexibilizer, 5-10 parts of a nitrile rubber flexibilizer, 2-10 parts of a reactive diluent, 0.5-2 parts of a coupling agent and 20-50 parts of a solvent. Through compounding of the over-end epoxy type polyurethane flexibilizer, the core-shell flexibilizer and the nitrile rubber flexibilizer, the prepared conductive adhesive has excellent toughness and bonding characteristics, and meanwhile, the shrinkage stress and thermal stress in the curing process can be reduced.
Owner:CHINA BLUESTAR CHENGRAND CO LTD +1

Epoxy resin packaging bonding material with high bonding stability and preparation method thereof

The invention provides an epoxy resin packaging bonding material with high bonding stability and a preparation method thereof. The packaging bonding material is prepared from the following raw material components: 8 to 18 percent of graphene oxide modified epoxy resin, 0.8 to 4.0 percent of a curing agent, 0 to 1 percent of a curing accelerator, 0.4 to 2.0 percent of a silane coupling agent, 2 to 7 percent of nano carbon black, 2 to 7 percent of carbon fiber, 40 to 60 percent of flaky silver powder, 4 to 8 percent of spherical silver powder, 4.4 to 13.6 percent of a surface treating agent, 4 to 6 percent of a reactive diluent, 0.5 to 1.5 percent of a toughening agent, 0.5 to 1.5 percent of a dispersing agent, 0.1 to 0.5 percent of a lubricating agent and the balance of a non-reactive diluent. Graphene oxide is utilized to modify epoxy resin, the dispersion stability of the filler is improved, modified carbon black is adopted as a short-range conductive additive, carbon fibers are adopted as a long-range conductive additive, the modified carbon black and the carbon fibers synergistically improve the conductivity, and the reinforcing effect is achieved. The packaging bonding material disclosed by the invention has the characteristics of low volume resistivity, high tensile strength and bending strength, high bonding stability and the like, and has wide application prospects in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.
Owner:SHENZHEN POLYTECHNIC

Toughening type curing-controllable prepreg and preparation method thereof

The invention provides a toughened curing-controllable prepreg and a preparation method thereof, and belongs to the technical field of high-performance composite materials. Comprising the following components in parts by mass: 100 parts of epoxy resin, 100 parts of a thermoplastic resin toughening agent, 100 parts of an inorganic nanoparticle toughening agent, 100 parts of a latent curing agent, 100 parts of an organic urea accelerant, 100 parts of an imidazole accelerant and 100 parts of a reactive diluent, correspondingly, 1-5 parts by mass of a thermoplastic resin flexibilizer, 0-3 parts by mass of an inorganic nanoparticle flexibilizer, 4-8 parts by mass of a latent curing agent, 1-4 parts by mass of an organic urea accelerator, 0.1-0.5 part by mass of an imidazole accelerator and 5-20 parts by mass of an active diluent are added. The prepreg provided by the invention not only is endowed with fast curing and controllable curing time, but also is endowed with relatively long room-temperature storage period, high toughness and good impact resistance, and is especially suitable for the fields of low-altitude aircrafts, automobiles, ships and the like.
Owner:MODERN TEXTILE TECH INNOVATION CENT (JIANHU LAB) +1

High-performance flame-retardant low-dielectric-loss copper-clad plate and preparation method thereof

The invention relates to the field of copper-clad plates, and discloses a high-performance flame-retardant low-dielectric-loss copper-clad plate and a preparation method thereof.The copper-clad plate comprises epoxy resin, benzoxazine resin, composite filler, carboxyl-terminated nitrile rubber, an active diluent, a curing agent and the like; the composite filler is prepared by compounding flame-retardant modifier grafted graphene oxide and epoxy silane modified silicon dioxide hollow spheres; according to the flame-retardant modifier, boric acid and pentaerythritol are used for preparing a double-terminal hydroxyl boron-containing intermediate, then dichlorodiphenyl silane and phenylphosphonic dichloride react with hydroxyl groups at the two ends of the intermediate to prepare a flame-retardant intermediate, and amino silane and vanillic aldehyde react with chlorine atoms at the two ends of the intermediate to prepare an aldehyde modified flame-retardant intermediate; the copper-clad plate prepared by the preparation method disclosed by the invention is low in dielectric constant and dielectric loss, high in heat conductivity coefficient and good in flexibility, and also has excellent heat resistance and flame retardance.
Owner:SHENZHEN LINGHANGDA ELECTRONICS CO LTD

Low-temperature fast-curing two-component resin adhesive and preparation method thereof

The invention discloses a low-temperature fast-curing two-component resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The resin adhesive is formed by mixing a component A and a component B, the component A comprises epoxy-acrylate hybrid resin, a reactive diluent, a nano reinforcing filler and the like, and the component B comprises a modified aliphatic amine curing agent, a microcapsule low-temperature efficient accelerant, a Mannich base curing agent and the like. Through the synergistic effect of a quaternary curing system and in combination with the rigid-flexible balance design of the hybrid resin, rapid curing at low temperature is achieved, and high strength, high toughness and good storage stability are achieved. The resin adhesive is suitable for the fields of bonding of automobile parts, packaging of electronic elements, repairing of wind power blades, sealing of building structures and the like, and particularly solves the problems that a traditional resin adhesive is slow in low-temperature curing and insufficient in performance.
Owner:广东华百材料技术有限公司

Rapid curing type high-temperature-resistant anticorrosive coating and preparation method thereof

The invention discloses a quick-curing high-temperature-resistant anticorrosive coating for two-component packaging and a preparation method of the quick-curing high-temperature-resistant anticorrosive coating. The component A of the coating is composed of novolac epoxy resin, epoxy resin, a reactive diluent, an auxiliary agent, an anti-rust pigment, a filler, aluminum powder and a solvent; and the component B consists of phenolic aldehyde amine, alicyclic amine and a solvent. Compared with a traditional phenolic epoxy coating, the product has the advantages of being high in single-time film forming thickness, rapid in curing, resistant to abrasion, high in thermal stability, resistant to cold and hot impact, resistant to corrosion and the like.
Owner:NANJING CHANGJIANG PAINT

Bi-component epoxy pouring sealant as well as preparation method and application thereof

The invention discloses a two-component epoxy pouring sealant as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The bi-component epoxy pouring sealant comprises a component A and a component B. The component A comprises the following raw materials: 60-100 parts of modified epoxy resin; 5-25 parts of a reactive diluent; 1 to 10 parts of nano silicon dioxide; the component B comprises the following raw materials in parts by mass: 50-60 parts of an alicyclic amine curing agent; 20-30 parts of a polyether amine curing agent; 10 to 15 parts of methyl tetrahydrophthalic anhydride; 3-5 parts of a silane modifier; 0.1 to 0.5 part of a defoaming agent; the modified epoxy resin is prepared by carrying out esterification reaction on bisphenol A type epoxy resin and long-chain fatty acid for modification and then carrying out graft modification with polypropylene glycol diglycidyl ether. In addition, the invention also provides a preparation method of the two-component epoxy pouring sealant. The epoxy pouring sealant provided by the invention has excellent bonding performance on non-polar plastics such as PP / PE and the like.
Owner:SHAOYANG BA BROTHER NEW MATERIAL TECH CO LTD

Graphene modified epoxy anticorrosive paint and preparation method thereof

The invention relates to the technical field of coatings, in particular to a graphene modified epoxy anticorrosive coating and a preparation method thereof. The coating is prepared from epoxy resin, graphene-hyperbranched epoxy resin, a reactive diluent and an auxiliary agent, wherein the graphene-hyperbranched epoxy resin is prepared by a three-step method comprising the following steps: firstly, performing dual modification on graphene oxide by adopting 11-aminoundecyltriethoxysilane and 3-aminopropyltriethoxysilane; then reacting with 2-formyl-5-phenylphenol, and finally carrying out condensation polymerization with trimethylolpropane triglycidyl ether to form a hyperbranched structure. According to the invention, collaborative optimization of mechanical strength and corrosion resistance is realized, and the coating has excellent adhesive force, hardness and long-acting corrosion resistance, and is suitable for severe corrosion environments such as ocean engineering and the like.
Owner:JIANGSU DAOPENG TECH CO LTD

Wide-spectrum ultraviolet absorbent with sandwich structure as well as preparation method and application of wide-spectrum ultraviolet absorbent

The invention belongs to the field of coatings, and discloses a broad-spectrum ultraviolet absorbent with a sandwich structure as well as a preparation method and application of the broad-spectrum ultraviolet absorbent. An ultraviolet absorbent is adsorbed on the upper surface and the lower surface of graphene oxide through the action of a hydrogen bond and a pi-pi bond to form a compact ultraviolet absorbent layer, then the surface of graphene oxide is chemically modified through a diamine compound, amino is grafted, and the wide-spectrum ultraviolet absorbent of a'discrete point / surface / discrete point 'sandwich structure is obtained. The ultraviolet absorbent filler, the cardanol-based reactive diluent and the epoxy resin are compounded, so that the ultraviolet aging resistance, the barrier corrosion resistance and the hydrophobicity of the prepared composite coating are synergistically enhanced and exceed those of an anti-ultraviolet epoxy coating material reported at present.
Owner:NANJING TECH UNIV

Formula and in-situ modification preparation process of quantum dot-containing LED-UV (Light Emitting Diode-Ultraviolet) anti-forgery ink

PendingCN121555002AInksUV curingFluorescence
The invention relates to the technical field of ink preparation, in particular to a quantum dot-containing LED-UV anti-forgery ink formula and an in-situ modification preparation process thereof, and the quantum dot-containing LED-UV anti-forgery ink formula comprises the following components in parts by mass: 2-8 parts of core-shell structure quantum dots, 20-40 parts of LED-UV curing resin, 15-30 parts of a reactive diluent, 3-8 parts of a photoinitiator, 1-5 parts of a composite anti-forgery functional aid and 5-15 parts of a high-purity solvent. The quantum dots are uniformly dispersed in an ink system after being subjected to in-situ modification treatment, in-situ modification is realized through chemical bonding of a surface modifier and hydroxyl and amino groups on the surfaces of the quantum dots, and LED-UV cured resin, an active diluent and a photoinitiator cooperate with an LED-UV light source of 365-405 nm to perform in-situ surface modification on the quantum dots, so that the quantum dots are uniformly dispersed in the ink system. The fluorescent powder is tightly combined with a resin system through chemical bonding, so that agglomeration and migration are fundamentally prevented, and the uniformity and stability of the fluorescent property are ensured.
Owner:深圳市深赛尔股份有限公司

Anti-ultraviolet epoxy resin coating and preparation method thereof

The invention discloses an anti-ultraviolet epoxy resin coating and a preparation method thereof, and belongs to the technical field of epoxy resin coatings. Comprising a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 80-90 parts of bisphenol A epoxy resin, 5-8 parts of a reactive diluent, 10-15 parts of modified titanium dioxide, 2-6 parts of an anti-ultraviolet agent, 0.2-0.5 part of a defoaming agent and 0.2-0.5 part of a flatting agent. And the component B is a curing agent. The modified titanium dioxide and the self-made anti-ultraviolet agent are introduced, and the modified titanium dioxide and the self-made anti-ultraviolet agent can achieve a synergistic effect, so that the anti-ultraviolet performance of the coating is remarkably improved; wherein the modified titanium dioxide has better compatibility with an epoxy resin matrix, the dispersion is more uniform, and the problem that traditional inorganic nanoparticles are easy to agglomerate is avoided; in conclusion, the prepared coating has stable and efficient anti-ultraviolet performance and has important application value in the field of epoxy resin coatings.
Owner:DONGGUAN DELUN NEW MATERIAL CO LTD

Low-viscosity self-curing polyurethane acrylate composition and preparation method thereof

The invention relates to the technical field of high polymer materials, in particular to a low-viscosity self-curing polyurethane acrylate composition and a preparation method thereof.The low-viscosity self-curing polyurethane acrylate composition is prepared from, by mass, (a) 50-80 parts of polyurethane acrylate prepolymer; (b) 1-10 parts of functional particles; (c) 10-30 parts of a reactive diluent; (d) 0.1-2 parts of a visible light initiator; (e) 0.1-2 parts of a leveling agent; and (f) 0.1-1 part of a deoxidizing auxiliary agent. According to the invention, light response is expanded to a visible light wave band, natural light can trigger free radical polymerization and disulfide bond oxidative cleavage through component and structural design to realize controllable release of water, the system viscosity of an acrylate group is further reduced to 1500mPa. S or below, and the adhesive property and weather resistance are better after curing.
Owner:HAIYAN HUADA INK CO LTD

Silicon-free low-hardness high-thermal-conductivity gasket and preparation method thereof

PendingCN121136338APolymer sciencePolyol
The invention discloses a silicon-free low-hardness high-thermal-conductivity gasket and a preparation method thereof. The silicon-free low-hardness high-thermal-conductivity gasket is prepared from the following raw material components: epoxy resin, a polyether amine curing agent, polyether polyol, a reactive diluent, a curing accelerator, a thermal-conductivity filler and a flame retardant, and the epoxy resin is prepared from liquid epoxy resin and flexible epoxy resin. According to the invention, a moderate cross-linked network system is constructed by introducing flexible epoxy resin and liquid epoxy resin, and a chemically bonded soft-hard alternating microphase separation structure is formed by embedding a long-chain aliphatic flexible segment into an epoxy rigid skeleton based on a molecular flexible regulation and control and multi-scale heat-conducting network synergistic construction principle; and by combining the physical stacking effect of the multi-particle-size compound heat-conducting filler, the balance between the flexibility and the heat-conducting property of the material is realized. The prepared heat-conducting gasket has the characteristics of low hardness and high heat conductivity, the risk of silicone oil precipitation is eliminated, meanwhile, the bio-based characteristics of the heat-conducting gasket meet the green manufacturing requirement, and a novel silicification-free solution is provided for long-acting and stable heat dissipation of microelectronic devices.
Owner:NANJING FUTURE ENERGY SYST RES INST OF SCI & TECH

High-adhesion UV LED coating composition and preparation method thereof

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.
Owner:HANGZHOU XIONGYING FINE CHEM CO LTD

Transparent phosphorescence-containing cured flame-retardant coating as well as preparation method and application thereof

The invention relates to a transparent phosphorescence-containing cured flame-retardant coating as well as a preparation method and application thereof. The transparent phosphorescence-containing cured flame-retardant coating comprises the following components: phosphorus-containing polyurethane acrylate, polyurethane acrylate, a double-bond-containing polyurethane organosilicon prepolymer, a nitrogen-containing acrylic monomer, a phosphorus-based flame retardant A, a phosphorus-based flame retardant B, silica sol, a reactive diluent B, a silane coupling agent and other auxiliaries. The coating disclosed by the invention has adhesive force, flame retardance and weather resistance, and can be directly cured on a light flexible photovoltaic module panel and a back plate through UV to achieve transparent, fireproof, flame-retardant and weather-resistant effects.
Owner:SHANGHAI PINCHENG HLDG GRP CO LTD +1

Self-repairing scratch-resistant coating, PVC decorative film and preparation method of self-repairing scratch-resistant coating

The invention provides a self-repairing scratch-resistant coating, a PVC decorative film and a preparation method of the PVC decorative film, and relates to the technical field of decorative films. The self-repairing scratch-resistant coating provided by the invention comprises flexible polyurethane acrylate, modified epoxy acrylate, a reactive diluent, a photoinitiator, a siloxane microcapsule repairing agent, a dynamic cross-linking agent, a flatting agent, an anti-fingerprint agent and butyl acetate. The coating can be efficiently repaired, meanwhile, the toughness of the coating can be improved through the flexible polyurethane acrylate, secondary damage after repairing is avoided, and the purpose of synergism of scratch resistance and self-repairing is achieved. The PVC decorative film provided by the invention adopts the self-repairing scratch-resistant coating, so that the surface hardness is improved, the scratch resistance is enhanced, and a scratch self-repairing technology is added, so that scratches are reversible, and the service life is prolonged.
Owner:GUANGDONG TIANAN POLYMER TECH CO LTD

Solvent-free epoxy coating and preparation method thereof

The invention discloses a solvent-free epoxy coating and a preparation method thereof, and relates to the technical field of coatings. The solvent-free epoxy coating is composed of a component A and a component B, the component A is composed of a high-performance modified reinforced composite filler, epoxy resin, a composite reactive diluent, a defoaming agent and a leveling agent; the component B is a curing agent polyether amine D-230; the high-performance modified reinforced composite filler is uniformly dispersed and stably embedded into an epoxy resin base material, and internal stress caused by filler agglomeration and poor interface can be reduced due to excellent compatibility and dispersibility, so that the coating is not easy to fall off from the base material after being cured; and the excellent adhesion and dispersibility also avoid abrasion, shedding and cracks caused by insufficient adhesion or interface defects, so that the toughness and wear resistance of the coating are enhanced, the permeation of a corrosive medium is fully isolated, and the adhesion, wear resistance and corrosion resistance of the coating are further enhanced under the assistance of auxiliaries such as the composite reactive diluent.
Owner:GANSU JINHONGQIAO GRP CO LTD

Low-thermal-resistance phase change heat conduction material and preparation method thereof

The invention relates to a low-thermal-resistance phase change heat conduction material and a preparation method thereof, and belongs to the technical field of thermal interface materials. The phase-change-resistant heat conduction material comprises the following components in percentage by weight: 22 to 30 percent of porous BN-paraffin phase change agent, 8.5 to 10.2 percent of nano aluminum nitride, 3.5 to 4.1 percent of reactive diluent and the balance of room-temperature cured silicone rubber, according to the porous BN-paraffin phase change agent, porous BN serves as a carrier, phase change paraffin is packaged in pores, and compared with the prior art, the porous BN-paraffin phase change agent has the advantages that the pore wall of the packaged BN serves as a thermal bridge, the contact probability between the phase change agents is increased, rapid diffusion of heat in a composite material is promoted, phase change latent heat of the paraffin is fully released and conducted, and the phase change performance of the phase change agent is improved. Not only is the problem of paraffin leakage solved, but also the thermal resistance is obviously reduced.
Owner:DONGGUAN XIONGSHUO ELECTRONICS CO LTD

Epoxy potting resin composition as well as preparation method and application thereof

The invention discloses an epoxy potting resin composition and a preparation method and application thereof, the composition comprises a component A and a component B. The component A comprises an epoxy resin matrix, a flexibilizer, a reactive diluent, a modified one-dimensional fiber reinforced material and a first inorganic filler, and the component B comprises anhydride, alcohol ether modified anhydride, a second inorganic filler and an accelerant. The modified one-dimensional fiber reinforced material is obtained by treating a one-dimensional fiber reinforced material with a surface treating agent, and the surface treating agent is a reaction product of a specific secondary amino compound and diisocyanate; when the component A is prepared, part of the epoxy resin matrix and the inorganic filler are firstly extruded in a single-screw extruder, then co-extruded with the modified one-dimensional fiber reinforced material in a double-screw extruder, and finally mixed with the remaining components; the composition provided by the invention has low system viscosity while meeting high cracking resistance, meets the pouring requirements, also has excellent mechanical properties, temperature resistance, electrical properties and the like, and overcomes the current problem that the components are compatible with one another.
Owner:OBON TECH (SUZHOU) CO LTD +1

Photocurable inks and primers for automotive interior applications and glass articles comprising same

An ultraviolet ink composition includes from 25 wt % to 50 wt % of a pigment dispersion, from greater than 0 wt % to 10 wt % of a photoinitiator package; from 10 wt % to 42 wt % of a reactive diluent; from 10 wt % to 20 wt % of a multifunctional monomer; and from 0 wt % to 25 wt % of a difunctional monomer. An ink primer includes from 2 wt % to 10 wt % of an adhesion promoter configured to bond to glass and from 90 wt % to 98 wt % of a solvent configured to promote bonding of the adhesion promoter to the glass. Another ink primer includes from 2 wt % to 10 wt % of an adhesion promoter configured to bond to glass, from greater than 0 wt % to 10 wt % of a photoinitiator package; and from 30 wt % to 45 wt % of a monofunctional monomer.
Owner:CORNING INC

Single-component dual-curing 3D printing photosensitive resin combined with latent reaction source, elastomer material and preparation method

The invention provides a single-component dual-curing 3D printing photosensitive resin combined with a latent reaction source, an elastomer material and a preparation method, and relates to the technical field of 3D printing. The photosensitive resin comprises the following raw materials in parts by mass: 70-90 parts of a methacrylate-terminated polyurethane prepolymer, 1-5 parts of a compound which can be dehydrated under a heating condition, 5-15 parts of a reactive diluent and 1-5 parts of a photoinitiator, and the structural formula of the methacrylate-terminated polyurethane prepolymer is as shown in a formula II. The photosensitive resin provided by the invention introduces a substance which can be dehydrated after being heated to a specific temperature as a'latent 'reaction source. In the printing post-treatment stage, dehydration is triggered through heating, released water molecules react with part of isocyanate groups in a system, a high-activity diamine chain extender is generated in situ, and then the high-activity diamine chain extender and remaining isocyanate are subjected to efficient chain extension reaction.
Owner:SUZHOU POLLY NEW MATERIAL TECH CO LTD

Halogen-free flame-retardant epoxy resin system composition and application

PendingCN120944073APolymer scienceFirming agent
The invention discloses a halogen-free flame-retardant epoxy resin system composition and application, the epoxy resin system composition is composed of an epoxy resin part and a curing agent part, the epoxy resin part is composed of dihydroxydiphenylmethane glycidyl ether, 2, 2 '-[(1-methylethylene) bis (4, 1-phenylene formaldehyde)] dioxirane, 2, 2'-dihydroxydiphenylmethane glycidyl ether, 2, 2 '-[(1-methylethylene) bis (4, 1-phenylene formaldehyde)] dioxirane, 2, 2'-dihydroxydiphenylmethane, 2, 2 '-dihydroxydiphenylmethane, the halogen-free flame retardant is composed of hydroxyl-terminated polysiloxane modified bisphenol A glycidyl ether, an organophosphorus flame retardant, an active diluent and an auxiliary agent. And the curing agent part consists of an alicyclic amine curing agent, amine-terminated polyether and an accelerant. The epoxy resin system composition provided by the invention is low in mixing viscosity and strong in operability, a cured product has excellent toughness and heat resistance while ensuring that the flame retardant grade meets UL94V0, and the problems that a halogen-free flame-retardant system is poor in process operability, the performance of the cured product is reduced, halogen elements can release harmful gas at high temperature, and the service life of the cured product is prolonged can be effectively solved. And harm to human health and environment is caused.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Water-insensitive cold-mixed epoxy resin and use method thereof

The invention relates to the technical field of road and bridge materials, in particular to water-insensitive cold-mixed epoxy resin and a using method thereof.The water-insensitive cold-mixed epoxy resin comprises a main agent, a curing agent and an interface agent; the main agent comprises the following components in parts by weight: 40-50 parts of hydrophobic epoxy resin; 5-10 parts of a reactive diluent; the curing agent comprises 15-20 parts of a water reaction type curing agent; 3-5 parts of an etherification chain extender; 0.5-1 part of a reaction type defoaming agent; 0.3-0.5 part of a hydrolysis catalyst; the interface agent comprises 1-2 parts of a silane coupling agent; 0.5 to 3 parts of a titanate coupling agent; through triple water consumption ways of the interface agent, the curing agent and the main agent which are insensitive to water, the water in the aggregate is fully utilized, and the reaction product participates in or assists the curing cross-linking reaction of the cold-mixed epoxy resin system; the adverse effect of the high-water-content aggregate on the cold-mixed epoxy resin mixture is eliminated; meanwhile, the overall performance of the cold-mixed epoxy resin mixture is improved.
Owner:ZHONGLU JIAOKE TECHNOLOGY CO LTD

Foamed 3D printing elastomer photosensitive resin and preparation method thereof

The invention discloses foamed 3D printing elastomer photosensitive resin and a preparation method, and relates to the technical field of additive manufacturing materials. The thermal-expansion polyurethane acrylate composite material is prepared from the following materials in parts: 400 to 700 parts of a polyurethane acrylate oligomer containing dynamic oxime ester bonds and acrylate groups, 200 to 500 parts of a reactive diluent, 50 to 200 parts of thermal-expansion microspheres, 10 to 50 parts of a photoinitiator and 1 to 50 parts of a stability auxiliary agent, the polyurethane acrylate oligomer containing the dynamic oxime ester bond and the acrylate group is prepared by reacting isocyanate, polyol, a compound containing oxime hydroxyl and an acrylate end-capping reagent. According to the 3D printing elastomer photosensitive resin and the preparation method thereof, by introducing dynamic oxime ester bonds, controllable foaming of the material in the heat treatment process is achieved, the technical bottleneck that traditional light-cured resin is large in foaming difficulty is broken through, the material is endowed with the excellent lightweight characteristic through design, good mechanical performance and heat stability are kept, and the 3D printing elastomer photosensitive resin is suitable for 3D printing. The high requirement on the material performance is met.
Owner:ZHONGKE QINGDA (SHANDONG) NEW MATERIALS TECHNOLOGY CO LTD

Synthetic resin and adhesive for medical oxygen anaesthetic mask as well as preparation method and application of synthetic resin and adhesive

The invention discloses synthetic resin and an adhesive for a medical oxygen anaesthetic mask as well as a preparation method and application of the synthetic resin and the adhesive, and the synthetic resin is prepared by the following steps: carrying out ring-opening reaction on KH-560 and KH-550 to generate a siloxane intermediate with hydroxyl, and modifying polyurethane by using the siloxane intermediate; the adhesive comprises the following components in parts by weight: 100 parts of synthetic resin, 45-95 parts of a reactive diluent and 4-14 parts of a photoinitiator, and the reactive diluent mainly comprises isobornyl acrylate, N, N-dimethylacrylamide, tetrahydrofuran acrylate and hydroxyethyl acrylate; compared with the prior art, the adhesive prepared from the synthesized modified resin has the advantages that the adhesive can be quickly cured under the irradiation of an LED lamp, the energy consumption is low, and automatic production is facilitated; the oxygen mask has the characteristics of good surface dryness, good flexibility, no blistering at constant temperature and humidity, firmness of a PC (Poly Carbonate) surface cup and a PVC (Polyvinyl Chloride) air bag for bonding the oxygen mask, and the like.
Owner:GUANGDONG DINGLISEN NEW MATERIALS CO LTD

Preparation method of UV ink-jet ink for new energy battery and UV resin synthesis method of UV ink-jet ink

The invention relates to the technical field of new energy battery materials, and discloses a preparation method of UV ink-jet ink for a new energy battery and a UV resin synthesis method of the UV ink-jet ink. Comprising the following components: 15%-25% of self-developed polyurethane acrylate UV resin, 60%-75% of a reactive diluent, 1%-5% of a photoinitiator, 1%-5% of nano UV color paste, 0.05%-1% of an auxiliary agent, 0.1%-1% of fumed silica and 0.5%-2% of an adhesion promoter. The preparation method comprises the following steps: S1, adding the self-developed polyurethane acrylate UV resin, the reactive diluent, the photoinitiator and the auxiliary agent into a stirrer together, and stirring in a dark environment at the temperature of not more than 40 DEG C until the materials are uniformly mixed to form a transparent base material. By optimizing the raw material ratio and the preparation process of the UV ink-jet ink and combining with the specific synthesis path of the self-developed polyurethane acrylate UV resin, the problems that a traditional PET blue film process is poor in cohesiveness and low in breakdown voltage resistance and a UV spraying process wastes materials and pollutes the environment are solved, and accurate printing of the ink on the surface of a new energy battery cell can be achieved.
Owner:WUHAN JULIANG NEW MATERIALS CO LTD

Multifunctional rosin-based reactive diluent as well as preparation method and application thereof

The invention discloses a polyfunctional rosin-based reactive diluent. The structural formula of the polyfunctional rosin-based reactive diluent is shown as a formula (I) or a formula (II). The polyfunctional rosin-based reactive diluent has a rigid tricyclic diterpenoid structure of rosin, is small in molecular weight and low in viscosity, can be used for preparing an ultraviolet curing material, has excellent hardness and scratch resistance after light curing and film forming, and is simple in preparation method, low in cost and suitable for industrial production. And a polycarboxylic acid functional group is efficiently constructed under a mild condition.
Owner:NANXIONG KETIAN CHEM CO LTD