263 results about "Diglycidyl ether" patented technology

The invention relates to a poly-(2-oxazoline) epoxy derivative and application thereof, and belongs to the technical field of crosslinking. The invention provides a poly-(2-oxazoline) epoxy derivative, which is completely different from existing cross-linking agents such as 1, 4-butanediol diglycidyl ether (BDDE), divinyl sulfone, glycidyl methacrylate and the like in structure, and has the advantages that the structure is simple; the polymer can be used as a cross-linking agent for cross-linking natural high-molecular polymers such as polysaccharide (such as hyaluronic acid) and protein and synthetic high-molecular polymers such as polyethylene glycol and polyvinyl alcohol. Compared with an existing cross-linking agent, the poly-(2-oxazoline) epoxy derivative has the advantages that the poly-(2-oxazoline) epoxy derivative can be easily subjected to a cross-linking reaction with high-molecular polymers such as hyaluronic acid, the prepared cross-linked substances such as sodium hyaluronate gel are more stable and uniform, the performance of the prepared cross-linked substances is easier to regulate and control and the like, and the poly-(2-oxazoline) epoxy derivative has a great application prospect.

The invention relates to the technical field of ink, and discloses a preparation method of bio-based degradable water-based ink, which comprises the following steps: carrying out esterification polymerization on vanillin-based spiro acetal diglycidyl ether and diacid to obtain bio-based polyester resin, mixing and dispersing the bio-based polyester resin, petroleum-based resin, pigment, auxiliary agent and the like to obtain the bio-based degradable water-based ink. The bio-based degradable water-based ink is prepared. The bio-based resin contains a plurality of hydrophilic hydroxyl groups, has good solubility and dispersibility in the water-based ink, and generates denser hydrogen bonds and other cross-linking effects with the acrylic resin, so that the hardness of the ink is improved. Meanwhile, the polar hydroxyl groups also greatly enhance the hydrogen bond bonding and anchoring effect between the paint film and the base material, so that the adhesive force is improved. In addition, easily-hydrolyzed spiral acetal bonds, polyester structural units and other degradable chemical bonds in molecular chains of the bio-based resin provide more attack sites for water and microorganisms, the degradation rate is increased, and the degradable function is achieved.

The invention relates to the technical field of epoxy resin, in particular to self-repairing epoxy resin and a preparation method thereof. The self-repairing epoxy resin is prepared from the following raw materials in parts by mass: 80 to 120 parts of bisphenol A type epoxy resin, 20 to 40 parts of bisphenol F type epoxy resin, 5 to 15 parts of 1, 6-hexanediol diglycidyl ether, 1 to 3 parts of 3, 5-dimethylphenylboronic acid, 1 to 5 parts of furyl maleimide, 10 to 20 parts of dodecanedioic acid, 5 to 15 parts of butanetetracarboxylic acid, 1 to 3 parts of catalyst, 10 to 15 parts of nano silicon dioxide, 1 to 2 parts of boron nitride nanosheet and 1 to 2 parts of hyperbranched polyamidoamine. The curing agent is prepared from the following components in parts by weight: 20-30 parts of epoxy resin, 1-2 parts of sulfydryl-terminated polysiloxane, 20-30 parts of amine curing agent, 5-15 parts of reinforcing filler and 0.5 According to the invention, the balance among self-repairing capability, mechanical property and heat resistance is successfully realized; in the microcrack propagation process, fracture and recombination mechanisms of dynamic covalent bonds effectively prevent further propagation of cracks.

The invention discloses a high-performance modified resin material and a preparation method thereof, and belongs to the technical field of resin composite material preparation. The high-performance modified resin material is prepared from a main agent, a curing agent and nano filler, the main agent is prepared from 70 to 100 parts of bisphenol epoxy resin, 20 to 40 parts of dopamine modified epoxy resin, 5 to 15 parts of diglycidyl ether, 3 to 15 parts of flame retardant, 0.3 to 1 part of anti-settling agent, 0.05 to 0.3 part of defoaming agent and 0.1 to 0.5 part of pigment; the curing agent is prepared from the following components in parts by weight: 15-35 parts of a rapid curing agent, 10-30 parts of a toughening curing agent, 5-15 parts of a dopamine modified amine curing agent, 0.5-3 parts of an accelerant and 0.1-0.5 part of an antioxidant; and the nano filler is nano-particle coated PDA (potato dextrose agar). Amino of dopamine reacts with epoxy group, catechol is oxidized to generate a quinoneform structure, thiol-epoxy click reaction is catalyzed, and the material can be rapidly cured at low temperature; a flexible chain (-S-CH-CH-) of polymercaptan and a polyether chain of amine-terminated polyether are synergistically toughened, so that the toughness and impact resistance of the material can be improved.

The invention provides a nylon modified material as well as a preparation method and application thereof, and relates to the technical field of nylon compositing, the nylon modified material comprises the following components: nylon 66, low-viscosity nylon 6, a toughening agent, a compatilizer and a flow crystallization accelerant; wherein the toughening agent comprises a block copolymer containing a polyethylene glycol chain segment and a polydimethylsiloxane chain segment; the compatilizer comprises a compound containing a diglycidyl ether group. According to the nylon modified material provided by the invention, under the condition that the modulus of nylon 66 is slightly reduced, the impact strength is improved, so that the nylon modified material has the characteristics of high flowability, high toughness, self-lubrication and the like, and can meet the requirements of occasions such as automobile parts and industrial production.

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.

The present invention provides an epoxy resin adhesive and a preparation method thereof, and relates to the technical field of building structure adhesives, the epoxy resin adhesive is prepared from a component A and a component B, the component A comprises the following raw materials by weight: 90-110 parts of epoxy resin, 15-25 parts of a toughening agent, 40-50 parts of a filler I and 15-20 parts of benzyl alcohol, and the toughening agent comprises polycarbonate, polyamide and polypropylene glycol diglycidyl ether; the component B is prepared from the following raw materials in parts by weight: 40 to 60 parts of curing agent, 10 to 20 parts of filler II, 1.5 to 3 parts of polyvinylpyrrolidone and 5 to 10 parts of benzyl alcohol. The preparation method comprises the following steps: S1, preparing A glue; s2, preparing B glue; and S3, mixing glue. The toughening agent is added in the component A, polycarbonate, polyamide and polypropylene glycol diglycidyl ether are selected as the toughening agent, the three raw materials are compounded and cooperated, the processability and flowing property of the epoxy resin adhesive can be effectively improved, and the problems that a cured finished product is high in brittleness and poor in impact resistance are solved.

The invention belongs to the technical field of temporary plugging agents, and relates to a medium-temperature drilling fluid nano temporary plugging agent and a preparation method thereof. The temporary plugging agent is prepared from the following raw materials in parts by mass: 10 to 15 parts of small-particle-size coated silicon dioxide, 15 to 20 parts of medium-particle-size coated silicon dioxide, 30 to 50 parts of large-particle-size coated silicon dioxide, 15 to 20 parts of fiber, 5 to 8 parts of polyether diglycidyl ether, 5 to 8 parts of hyperbranched polyethyleneimine, 1 to 1.5 parts of water-soluble cellulose and 0.5 to 1 part of cationic quaternary ammonium salt. The coated silicon dioxide takes chitosan and glutaraldehyde as wall raw materials and silicon dioxide as a core material, and the particle size of the small-particle-size core material is 0.3-1 mu m; the particle size of the medium-particle-size particle core material is 150-250 microns; the particle size of the large-particle-size particle core material is 250-350 microns, the coated silicon dioxide particles are bonded together through a microscopic interpenetrating network formed by the reaction of hyperbranched polyethyleneimine and polyether diglycidyl ether, and the particles are matched with fibers to improve the bearing strength.

The invention discloses a hyperbranched polyether branching agent with an adjustable structure and a preparation method and application thereof.According to the branching agent, 3-butene-1-alcohol serves as an initiator, a hyperbranched skeleton is constructed through anion ring-opening polymerization reaction and diglycidyl ether, then esterification and end capping are conducted through anhydride, and the hyperbranched polyether branching agent with the adjustable structure is obtained. The tail end of the hyperbranched polyether contains vinyl double bonds, and the ester group structure of the hyperbranched polyether can be regulated and controlled. Different diepoxy compounds are selected to control a main chain structure, and different anhydrides are used for regulating and controlling the chemical composition of branched chains, so that accurate design of molecular weight, polarity and number of functional groups of the branching agent is realized. The branching agent has excellent dissolvability in common organic solvents, and solves the problem of poor dissolvability of the traditional polydiene branching agent. When the star-shaped branched butyl rubber is applied to the synthesis of star-shaped branched butyl rubber, the distribution and number of branched points can be accurately regulated and controlled, the weight-average molecular weight and molecular weight distribution index of the rubber are remarkably improved, and the side reaction of gel is avoided.

The invention relates to low-viscosity high-strength two-component epoxy winding resin and a preparation method and application thereof, the resin comprises a component A and a component B, and the mass ratio of the component A to the component B is 100: (80-110); the component A consists of the following raw materials in percentage by mass: 70-85% of modified epoxy resin, 14-20% of a functional reactive diluent and 1-10% of an impregnating compound; the modified epoxy resin is formed by compounding bisphenol A epoxy resin and polyether modified epoxy resin, and the functional active diluent is formed by compounding 1, 6-hexanediol diglycidyl ether and phenyl glycidyl ether; the component B is prepared from the following raw materials in percentage by mass: 85-96% of a composite anhydride curing agent, 2.5-10% of a high-efficiency accelerant and 1.5-5% of a defoaming agent; the composite anhydride curing agent is compounded by methyl tetrahydrophthalic anhydride and succinic anhydride, the efficient accelerant is compounded by imidazole and phosphine, and the defoaming agent is an organic silicon defoaming agent.

The invention discloses an epoxy resin adhesive and a preparation method thereof, and belongs to the technical field of material preparation. The adhesive is composed of 50-100 parts of an epoxy resin main agent and 50-120 parts of a curing agent; the epoxy resin main agent is functionalized carbon nanotube modified liquid epoxy resin, and the functionalized carbon nanotube modified liquid epoxy resin is composed of 100 parts of bisphenol epoxy resin, 5-25 parts of diglycidyl ether and 5-15 parts of glycidyl methacrylate; the curing agent is prepared from 60 to 100 parts of modified polyamine curing agent, 10 to 25 parts of hyperbranched polymer modifier, 5 to 15 parts of nano silicon dioxide dispersion, 10 to 20 parts of amino-terminated liquid nitrile rubber and 3 to 10 parts of curing accelerator. According to the invention, a high-temperature curing and normal-temperature curing combined technology is adopted to realize that the epoxy resin adhesive forms strength in a short time at normal temperature and does not adhere to the wheel, and secondary curing can be carried out at high temperature, so that interlayer bonding is enhanced. The preparation process is simple, and the prepared epoxy resin adhesive is excellent in tensile property and bonding property.

The invention discloses a preparation method of a finishing agent for improving the dry and wet rubbing color fastness performance of a fabric, and belongs to the technical field of material preparation. The method comprises the following steps: firstly, adding isophorone diisocyanate and polyethylene glycol into a reactor according to a specific molar ratio to carry out prepolymerization reaction, and then sequentially carrying out operations of hydrophilic chain extension, neutralization, emulsification dispersion and the like to form a waterborne polyurethane emulsion; adding ethylene glycol diglycidyl ether, triethylamine, tetrabutylammonium bromide, KH550 modified nano silicon dioxide and the like to carry out ring-opening reaction; and finally, carrying out polycondensation and crosslinking to obtain the finishing agent. On the basis of waterborne polyurethane, a high-strength net structure is constructed through a multi-step cross-linking reaction, toxic substances such as epoxy chloropropane and the like are avoided, the dry and wet rubbing color fastness, the hand feeling, the washability and the storage stability are remarkably improved, and an innovative scheme is provided for improving the high-performance and green color fastness of the dark natural fiber fabric.

The invention provides epoxy resin for halogen-free flame-retardant self-leveling powder coating and a preparation method of the epoxy resin, and belongs to the technical field of powder coating. The flame retardant is mainly prepared from anhydrous piperazine, bisphenol A diglycidyl ether, trihydroxymethyl phosphorus oxide, triethyl phosphite, epoxy chloropropane, sodium hydroxide, N-methyl iminodiacetic acid, ethylene glycol diglycidyl ether and other main raw materials through polymerization. The prepared epoxy resin and 2-phenylimidazoline are subjected to low-temperature curing (135 DEG C / 20 min) on the premise that an additional flatting agent does not need to be used, the flexibility of a coating film is good, the impact resistance grade is high, the impact performance reaches the condition that no cracking phenomenon exists in the front and back 60cm, the leveling grade reaches the grade 7 or above, the gloss is high and reaches 95% or above, the oxygen index reaches 34% or above, and the halogen-free flame retardant performance is excellent.

The invention relates to a bi-component epoxy coating, a wire winding, a preparation method of the wire winding and an electric reactor. The bi-component epoxy coating comprises an epoxy prepolymer, an epoxy curing agent and a self-repairing microcapsule, wherein the self-repairing microcapsule contains an epoxy microcapsule and an amine microcapsule; wherein the amine microcapsule and the capsule wall of the epoxy microcapsule comprise polyurea, so that core liquid of the epoxy microcapsule and the amine microcapsule can be effectively preserved during primary thermocuring, and is not easy to flow out in advance. When the coating has cracks, bisphenol F diglycidyl ether in the amine microcapsules and aliphatic polyamine in the epoxy microcapsules can flow out and are gradually mixed, due to the high reaction activity of the aliphatic polyamine, secondary curing can be achieved without high temperature, microcracks can be repaired, further spreading of defects is prevented, and the service life of the coating is prolonged. And the long-term service capability of the self-repairing resin layer is effectively improved.

The invention discloses an aged SBS modified asphalt repair type regenerant and a preparation method thereof, and the regenerant is prepared by mixing aromatic hydrocarbon oil with 1, 4-butanediol diglycidyl ether and then mixing with rubber powder. Wherein the dosage of each component is as follows: 3-8 parts of aromatic hydrocarbon oil, 0.5-2 parts of 1, 4-butanediol diglycidyl ether and 8-10 parts of rubber powder. The repairing type regenerant can uniformly improve the high-temperature performance, ductility, recovery rate and other performance of SBS asphalt, and the problem of imbalance caused by prominent or backward individual indexes due to single components is avoided. And finally, the comprehensive performance of the regenerated asphalt is superior to that of the aged asphalt and is better than that of the common mixed regenerated asphalt, so that the comprehensive quality improvement of the performance of the aged SBS modified asphalt is realized.

The present invention relates to the technical field of conductive adhesives, and in particular to a flexible conductive adhesive based on graphene doping and a preparation method thereof. The present invention overcomes the shortcomings of poor electrical conductivity and poor thermal conductivity of existing adhesives. The present invention is prepared by mixing epoxy resin, carboxyl-terminated liquid nitrile rubber, and 1,4-butanediol diglycidyl ether, and then adding a modified epoxy resin and continuing to mix to obtain a mixed system; adding nano-alloy to the mixed system and mixing it, and then performing a first-stage high-shear dispersion to obtain a primary mixture; adding a few-layer graphene and a silver powder mixture to the primary mixture and stirring, and then performing a second-stage high-shear dispersion, low-frequency vibration treatment, and vacuum degassing treatment to obtain a flexible conductive adhesive; wherein, the modified epoxy resin is prepared from modified graphene oxide and epoxy resin; and the modified graphene oxide is prepared from graphene oxide and a silane coupling agent. The adhesive prepared by the present invention has strong electrical conductivity and thermal conductivity and is suitable for bonding components of optical communication equipment.

The invention provides an edge-corrosion-resistant auxiliary agent for a cathode electrophoretic coating and a preparation method of the edge-corrosion-resistant auxiliary agent, and belongs to the technical field of cathode electrophoretic paints.The preparation method comprises the following steps that amino-terminated nitrile rubber and polypropylene glycol diglycidyl ether are subjected to an addition reaction in a solvent, and epoxy resin modified amino-terminated nitrile rubber is obtained; mixing the epoxy resin modified amino-terminated nitrile rubber with a solvent, adding a mixture of the solvent and benzoyl peroxide into the mixture, and carrying out polymerization reaction to obtain repolymerized epoxy resin modified amino-terminated nitrile rubber; and sequentially adding acid water and deionized water, and stirring to obtain the edge corrosion resistant auxiliary agent. According to the cathode electrophoretic paint, the amino-terminated nitrile rubber is modified by the polypropylene glycol diglycidyl ether, so that the mechanical property and the flexibility of the cathode electrophoretic paint are improved; and then benzoyl peroxide is used for initiating repolymerization of the epoxy modified nitrile rubber to reduce the fluidity of the electrophoretic paint in the baking process, so that the edge corrosion resistance of the cathode electrophoretic paint is improved.

The invention relates to the field of resin processing, and particularly discloses high-hardness rosin resin and a preparation method thereof.The high-hardness rosin resin is prepared from first-grade rosin, pentaerythritol, phenolic aldehyde glycidyl ether, polypropylene glycol diglycidyl ether, nano-silicon dioxide, polysulfide rubber, an antioxidant and a catalyst; according to the manufacturing method, phenolic aldehyde glycidyl ether can react at medium and high temperatures, and low fluid viscosity at the high temperature is beneficial to stirring and uniform distribution of nano silicon dioxide. Phenolic diglycidyl ether is used as an epoxy group cross-linking agent, and a rigid network structure is constructed on a molecular level, so that the hardness of the resin can be greatly improved; the polypropylene glycol diglycidyl ether is introduced into a flexible chain segment, so that the brittleness is reduced. The nano silicon dioxide is uniformly dispersed at the periphery of the resin and is filled in gaps among molecular groups, so that the rigidity of the resin is macroscopically improved. The combination of the two can greatly improve the strength of the resin.

The application provides a coated white surface kraft paper with a back surface not easy to drop hair and powder and a preparation method thereof, and relates to the field of coated white surface kraft paper. The preparation method of the coated white surface kraft paper with a back surface not easy to drop hair and powder comprises the following steps: preparing a coating liquid, primary sizing and secondary coating. The coating liquid is prepared from the following raw materials: heavy pulp calcium, kaolin, starch, butadiene styrene latex, polyvinyl alcohol, sodium carboxymethyl cellulose, water-based epoxy silane, ethylene glycol diglycidyl ether and amino silicone oil. The preparation method can ensure that OCC waste paper boxes are effectively recycled for the back surface of the coated white surface kraft paper, and can overcome the problems of hair and powder dropping and adhesive residue on the back surface of the coated white surface kraft paper, so as to avoid the secondary transfer of hair, powder and adhesive on the back surface of the coated white surface kraft paper to the front surface of the paper, and to ensure the printing effect and printing efficiency of the coated white surface kraft paper.

The invention discloses a medical silica gel sealing ring material and a preparation method thereof, and relates to the field of silica gel materials. When the medical silica gel sealing ring material is prepared, mica powder, phytic acid, diglycidyl ether and allyl glycidyl ether are uniformly mixed and react to obtain modified mica powder; the preparation method comprises the following steps: reacting 4-(2-aminoethyl) phenylboronic acid with 3, 3 '-dihydroxy-[1, 1'-biphenyl]-4, 4 '-diformaldehyde to obtain a graft; the preparation method comprises the following steps: reacting vinyl silicone oil, thioglycerol and methacryloylethyl sulfobetaine to obtain modified silica gel; uniformly mixing the modified silica gel, the modified mica powder and the graft, and reacting to obtain the medical silica gel sealing ring material. The medical silica gel sealing ring material prepared by the invention has excellent flame-retardant, anti-aging, antifouling and mechanical properties.

The invention discloses an epoxy resin-based dual-curing color-changing film material and a preparation method thereof, and relates to the technical field of functional polymer materials, and the epoxy resin-based dual-curing color-changing film material is prepared from the following components in parts by weight: 35-50 parts of epoxy resin, 10-15 parts of polypropylene glycol diglycidyl ether, 3-5 parts of a cationic thermal curing agent, 1, 3-bis (oxiranyl methyl)-5-(2-allyl)-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4- The photochromic coating is prepared from the following components in parts by weight: 20-30 parts of 1, 3, 5-triazine-2, 4, 6 (1H, 3H, 5H)-triketone, 3-5 parts of 1, 4-diacryloyl-1, 2, 3, 4-tetrahydro-6, 7-dimethyl quinoxaline, 5-8 parts of modified photochromic dye, 2-4 parts of metal organic framework nanocrystal, 30-40 parts of solvent and 1-2 parts of initiator. The film material is good in flexibility and aging resistance, remarkable in photochromic effect and long in service life.

The present application belongs to the technical field of coating, and particularly relates to an epoxy asphalt coating, a preparation method and application thereof. The epoxy asphalt coating comprises component A and component B; the component A comprises epoxy resin, asphalt, active diluent and additive; the active diluent comprises glycidyl ether containing two epoxy groups; the component B comprises modified amine curing agent. The components jointly act to make the epoxy asphalt coating have high solid content, easy construction, fast drying speed, and good waterproof performance and anticorrosion performance. The active diluent prepared by the reaction of p-xylyl alcohol and diglycidyl ether can greatly reduce the viscosity of the system, facilitating construction; meanwhile, the active diluent has a double epoxy group structure, can participate in the reaction of the system, accelerate the drying speed, and the rigid benzene ring structure can improve the mechanical properties.

Disclosed herein are processes for producing 1,3-propanediol acrylate, 1,3- propanediol diacrylate, 1,3-propanediol monoacrylate component, 1,3-propanediol monodiacrylate component, 1,3-propanediol dimethylacrylate, and 1,3-propanediol diglycidyl ether. Also disclosed herein are compositions comprising 1,3-propanediol acrylate, 1,3-propanediol diacrylate, 1,3-propanediol monoacrylate component, 1,3- propanediol monodiacrylate component, 1,3-propanediol dimethylacrylate, and / or 1,3- propanediol diglycidyl ether.

The invention provides an in-use sewage pool body leakage repairing agent as well as a preparation method and a construction process thereof, and relates to the technical field of pool body anti-seepage transformation. The sewage pool body leakage repairing agent is prepared from the following raw materials in parts by weight: 30-40 parts of polyurethane resin, 20-30 parts of epoxy resin, 5-10 parts of an isocyanate curing agent, 1-3 parts of polyether modified silicone oil, 3-6 parts of ceramic powder, 1-3 parts of carbon fibers, 0.5-1 part of a silane coupling agent, 2-5 parts of propylene glycol diglycidyl ether, 0.3-0.5 part of an acid and alkali resistant anti-aging agent and 0.3-0.5 part of an anti-ultraviolet agent. By optimizing the component proportion of the leak repairing agent, the leak repairing agent has the characteristic of rapid solidification under a low-temperature condition, and has the effects of high strength, micro-expansion, good compactness and long-term performance; meanwhile, a temporary water storage bag, a temporary pump and a pipeline are adopted, so that the sewage treatment process is not interrupted when the leakage of the sewage pool body is repaired.

The application discloses a kind of resin for flame-retardant optical fiber reinforcing core and preparation method thereof, it is related to epoxy resin technical field.The resin for flame-retardant optical fiber reinforcing core includes the following mass parts components: 80~90 parts bisphenol A epoxy resin, 2~4 parts trimethylolpropane triglycidyl ether, 6~8 parts 4,4'-diphenyl bisphenol diglycidyl ether, 5~7 parts amino boron nitride, 15~18 parts toughening curing agent, 25~35 parts acid anhydride curing agent, 0.2~1 parts accelerator.On the basis of guaranteeing low shrinkage, the mechanical properties, flame-retardant performance of resin for flame-retardant optical fiber reinforcing core are effectively improved.

The application discloses a flame-retardant epoxy resin electrolyte prepolymer and a solid electrolyte membrane containing the same, the flame-retardant epoxy resin electrolyte prepolymer is an oligomer obtained through ring-opening addition reaction of phosphonate diol, diglycidyl ether and polyether amine; the terminal of the 1,4-butanediol oligomer contains unreacted epoxy groups and / or amine groups; the chemical formula of the 1,4-butanediol phosphonate diol is shown as formula (I): formula (I); wherein, R1 and R2 are alkyl or aryl; the flame-retardant epoxy resin electrolyte prepolymer of the application improves the flame retardance of the epoxy resin electrolyte prepolymer by introducing the phosphonate diol, improves the compatibility with lithium salt by providing lithium ion coordination sites through ether bonds P-O-C bonds and P=O, guarantees the smooth progress of subsequent curing reaction by retaining unreacted active groups (epoxy groups and / or amine groups), and finally improves the flame retardance and ionic conductivity of the epoxy resin solid electrolyte membrane formed after the epoxy resin electrolyte prepolymer and lithium salt are cured.

An epoxy resin-based adhesive composition used for a vehicle includes a bisphenol A epoxy resin, a polyalkylene glycol diglycidyl ether, a dimer acid diglycidyl ester, and a compound having a phenol group.

A temporary protective film for semiconductor sealing molding, which has a support film and an adhesive layer, and is used for temporarily protecting a face of a lead frame on the opposite side of a semiconductor element during sealing molding of forming a sealing layer that seals the semiconductor element mounted on a chip pad of the lead frame. The adhesive layer contains: a thermoplastic resin; and at least one specific compound selected from the group consisting of sorbitol polyglycidyl ether, polyethylene glycol diglycidyl ether, glycidyl ether of an aliphatic alcohol having 10 to 20 carbon atoms, glycerol polyglycidyl ether, polyalkylene glycol ester of a fatty acid having 2 to 30 carbon atoms, dipentaerythritol ester of a fatty acid having 2 to 20 carbon atoms, polyethylene glycol monoalkyl ether, and polyethylene glycol dialkyl ether.

The present disclosure relates to a composite material for application to a bone defect site to promote new bone growth at the site comprising: a combination of freeze-dried mineralized bone allograft particles; and a monophasic gel comprising cross-linked hyaluronic acid; wherein the hyaluronic acid is cross-linked by a cross-linking agent, the cross-linking agent being a diglycidyl ether. The present disclosure also relates to a method to obtain a composite material for application to a bone defect site to promote new bone growth at the site comprising mixing freeze-dried mineralized bone allograft particles with a monophasic gel comprising hyaluronic acid; and to a bone regenerative material comprising the composite material as defined herein for use in a method of treating a patient suffering from a degenerative bone condition, bone loss, bone deficiency or bone atrophy.

The invention discloses an insulating nano ceramic coating and a preparation method thereof, relates to the technical field of coatings, and belongs to the patent classification number C09D1 / 00. The preparation method comprises the following steps: firstly, carrying out hydroxylation activation and silane modification treatment on nano aluminum oxide and nano zirconium oxide, and grafting polymer chains on the surfaces of the nano aluminum oxide and the nano zirconium oxide through a polymerization reaction to obtain grafted modified nano ceramic powder so as to enhance the dispersity and compatibility of the grafted modified nano ceramic powder in a resin matrix; meanwhile, the acrylic polysiloxane resin is subjected to epoxy modification and is subjected to a cross-linking reaction with 3-aminopropyltriethoxysilane and polyethylene glycol diglycidyl ether, so that resin with a cross-linked network structure is synthesized; and finally, mixing the modified resin, the grafted modified nano ceramic powder, a mixed solvent, polyamide wax, an organic silicon defoaming agent, an acrylate film-forming agent, gamma-aminopropyltriethoxysilane hydrolysate and other auxiliaries, stirring and fusing to obtain the final insulating nano ceramic coating. The nano ceramic coating disclosed by the invention has excellent insulating property.