115 results about "Epoxy" patented technology

This invention relates to one kind of method to use abandoned grease to produce epoxy plasticizer, its characteristic lies in: Use the abandoned grease as raw materials, by pretreatment, the obtained glycerin ester to ester exchange respond with the methyl alcohol under alkali catalysis, then get fatty acidmethyl ester, then again with the peroxide organic acid, which is the reaction products of hydrogen peroxide and organic acid, to directly epoxy respond, get the raw epoxy fatty acid methyl ester, then wash off the acid by water, and obtain the epoxy fatty acid methyl ester by distillation and dehydration product. The raw material cost of this invention is low, originates broadly, conforms to the green environmental protection requirement, and the craft is simple, does not pollute environment, so it is the good substitute of petroleum product.

An electrically controlled propellant comprising an ionomer oxidizer polymer binder, an oxidizer mix including at least one oxidizer salt and at least one eutectic material, and a mobile phase comprising at least one ionic liquid is disclosed. The PVAN polymer in the present invention may be of medium (>100,000) to high molecular weight (<1,000,000). The present invention also may include the controlled cross-linking of the polymer using epoxy resins, the use of moisture barrier coating, the addition of an energetic combustion additives such as Chromium III and polyethylene glycol polymer.

The present invention provides a preparation method for a light-heat dual-cured woodware UV varnish coating. The method comprises: uniformly mixing an acrylic acid monomer, a catalyst and a polymerization inhibitor; adding the resulting mixture to epoxy resin with a temperature of 90-120 DEG C to carry out a reaction at a certain temperature; adopting acid value detecting to monitor the extent of the reaction, wherein the epoxy acrylate (EA) is obtained when the acid value is reduced to less than 5 mg/g; adding a thermal initiator, a photoinitiator, an antifoaming agent, a wetting and dispersing agent, a thickening agent and a leveling agents to the EA, then mixing and stirring to obtain the UV varnish coating. The prepared UV varnish coating through the method provided by the present invention has the dual functions of light curing and heat curing, the surface dry can be rapidly achieved in 4-8 seconds under the light intensity of 250-400 mJ/cm<2>, the film forming and the curing can be achieved in 1-5 hours at the temperature of 50-70 DEG C. In addition, the prepared UV varnish coating has characteristics of high adhesion, good chemical corrosion resistance, high film hardness and low cost, and provides more excellent construction performance, curing method and film performance than ordinary UV-cured coatings.

The invention relates to a solid-type filter stick formed by granular assembling and a preparation method of the solid-type filter stick. The filter stick is prepared by the assembling forming of solid granules and an adhesion agent, wherein the solid granules are one or more of natural plant granules, natural mineral granules and artificial adsorption granules. The adhesive agent is one or more of ethylene-vinyl acetate copolymer, polyethylene hot melt adhesive, epoxy resin, polyester, polyether, polyurethane, dextrin, polyvinyl alcohol, polycaprolactone, gelatin and Arabic gum. The mass ratio of the solid granules and the adhesive agent is 0.5-200:1. The filter stick is prepared by the bonding forming after the solid granules and the adhesive agent are mixed, is loosened, breathable and stable in structure, and can be used as a unitary filter tip or can be combined with other filtering materials to form a multi-component filter tip. The preparation method is simple in process and high in production stability. The filter stick is novel in appearance and structure, stable in structure, excellent in incision performance, wide in material selection range, good in filtering effect and capable of effectively improving the smoking quality of cigarettes.

The invention discloses a synthesis method for terpolymer block silicone oil. The synthesis method is characterized by comprising the steps of: (A) adding 100 parts by weight of dimethyl cyclosiloxane or octamethyl cyclotetrasiloxane, 4 parts by weight of epoxy-terminated disiloxane and 15 parts by weight of dimethylacetamide, raising the temperature to 70-80 DEG C, adding 0.02-0.1 part by weight of base catalyst, raising the temperature to 110-120 DEG C, reacting for 3-4 hours, slowly opening vacuum, extracting solvents and low molecular weight matters, continuously raising the temperature to 140-145 DEG C, maintaining the temperature and the vacuum for 2 hours, so as to obtain epoxy silicone oil; and (B) adding 80-100 parts by weight of epoxy-terminated silicone oil, 6-30 parts by weight of polyether polyol and 150 parts by weight of isopropyl alcohol, carrying out backflow reaction for 6-15 hours at 80-86 DEG C, and decompressing and removing the isopropyl alcohol or adding a propylene glycol displacement solvent, so as to obtain amino polyether block silicone oil. By utilizing the terpolymer block silicone oil disclosed by the invention, the fabric has good hand feel, namely fluffy feel and smooth feel, cannot be yellowed or is slightly yellowed.

The invention belongs to a material used for preparing printed circuit board, more specifically a resin combination and a prepreg used for preparing the printed circuit board. The resin combination uses phenoxy resin, epoxy resin composition, epoxy thinner, amine curing agent, imidazole enhancer and solvent as materials and is prepared in accordance with a certain weight, then the resin combination solution is immersed in glass fiber cloth to make the prepreg. Non-flowing character and the wetting quality of the glass fiber cloth are improved because of the excellent formula of the resin combination, thereby the prepreg used for the printed circuit board has a better non-flowing character, and moisturizing capability, heat resistance, flame retardant, high connectivity with copper foil, and provides high performance material for the printed circuit board product which has a special structure and flexibility-combines with steel.

The invention relates to the technical field of flexible circuit boards, in particular to a halogen-free resin composition. The halogen-free resin composition comprises, by weight, 40-60 parts of polyester-type polyurethane resin, 15-25 parts of polyfunctional epoxy resin, 10-20 parts of phosphorus-containing phenolic resin, 15-25 parts of phosphorus-containing flame retardant and a proper quantity of organic solvent. The polyester-type polyurethane resin contains carboxyl, the acid value is 35 KOHmg/g, and the number-average molecular weight is 10,000-50,000. The polyester-type polyurethane resin containing the carboxyl can be reacted with biphenyl type epoxy resin, and the biphenyl type epoxy resin can be reacted with the phosphorus-containing phenolic resin so that an interpenetrating polymer network structure can be formed. In this way, a cured product has excellent ionic migration resistance and has high flexibility and high heat resistance. The invention further relates to a cover film prepared from the halogen-free resin composition, the excellent ionic migration resistance is achieved, and dendritic crystals can be avoided during ionic migration resistance testing.

Provided is a filler for affinity chromatography having a high dynamic binding capacity for proteins and having excellent alkali resistance and storage stability. The filler for affinity chromatography of the present invention comprises a porous particle consisting of a copolymer of 40 parts to 99.5 parts by mass of (M-1) a methacryloyl group-containing vinyl monomer that contains a hydroxyl group and does not contain an epoxy group, 0.5 parts to 30 parts by mass of (M-2) an epoxy group-containing vinyl monomer, 0 parts to 59.5 parts by mass of (M-3) a methacryloyl group-containing vinyl monomer which is other than the monomers (M-1) and (M-2), and 0 parts to 25 parts by mass of (M-4) a vinyl monomer other than the monomers (M-1), (M-2) and (M-3) (with the proviso that the total amount of the contents of (M-1), (M-2), (M-3) and (M-4) is 100 parts by mass); ring-opened epoxy group obtainable by ring-opening of epoxy group that is contained in the copolymer; and ligand that is bound to the porous particle.

A curable resin composition which contains a curable resin (A) having two or more polymerizable unsaturated bonds in a molecule, and polymer microparticles (B), and which optionally further contains an epoxy resin (C) and a low-molecular-weight compound (D) having a molecular weight less than 300 and having at least one polymerizable unsaturated bond in a molecule,

• • wherein the content of component (B) is 1 to 100 parts by mass per 100 parts by mass of the sum of component (A) and component (D),
  • the content of the epoxy resin (C) is less than 0.5 parts by mass per 100 parts by mass of the sum of component (A) and component (D),
  • component (A) has an epoxy (meth)acrylate content less than 99 parts by mass per 100 parts by mass of the whole component (A), and
  • component (B) has been dispersed in the state of primary particles in the curable resin composition.

Syntactic foams and thermal insulation as described containing epoxy resin, hollow microspheres, and dried sol-gel or fumed metal oxide for forming a thermal insulating layer on a substrate such as a pipeline. Methods for forming such thermal insulating layers are also described, which can include formulating with blowing agents for forming closed cells in the finished insulating foam.

The present invention relates to the technical field of water-based coatings, and in particular relates to good-weather and water resistance water-based alkyd resin, alkyd resin is obtained by fatty acid method, and by reaction of epoxy groups of epoxy organosiloxane and alcoholic hydroxyl groups and carboxyl groups of an alkyd resin molecular chain, organosiloxane chain segments are introduced into the water-based resin system for synthesis of the water-based epoxy organosiloxane-modified alkyd resin with excellent water resistance, stain resistance, weather resistance, smoothness and corrosion resistance. An epoxy organosiloxane monomer contains a methoxysilane inorganic active functional group, silicon hydroxyl formed by hydrolysis of the functional group may be condensed with inorganic material surface hydroxyl to improve the water-based alkyd resin adhesion to a metal, glass and plastic substrate, meanwhile by the introduction of the organosiloxane chain segments into the alkyd resin branched portion, the drying properties, weather resistance, heat resistance and water resistance of the water-based alkyd resin can be greatly improved.

The invention discloses a phosphor-silicon-containing aggregated flame retardant and a preparation method thereof. The preparation method comprises the following steps: adding 10-(2,5-dihydroxy phenyl)-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and an acid-binding agent into a reactor loaded with a burette, a condensing tube and a nitrogen protection device, heating to 40 to 100 DEG C; weighing R1, R2-dichlorosilane, adding a solvent, and adding the mixture into the burette; adding the mixture at the temperature of 40 to 100 DEG C dropwise, and performing a thermal reaction for 2 to 10 hours after finishing of dropping; adding a precipitant, performing suction filtration, washing filter cakes with the precipitant, and drying to obtain the phosphor-silicon-containing aggregated flame retardant. The phosphor-silicon-containing aggregated flame retardant has high phosphor content and silicon content, abundant carbon sources, high char forming characteristic, superior flame retardance and thermal stability, and can be applied to high-molecular materials such as flame-retardant polypropylene, polystyrene and epoxy resin.

The invention discloses functional composite coating and a preparing method thereof and belongs to the technical field of coatings. The functional composite coating solves the problems that a corrosion-resisting coating in the prior art is large in thickness, low in elasticity, easy to damage in larger stress impact, poor in friction resistance, poor in marine corrosion resistance, short in service life and unable to be used in a wider temperature range. The composite coating is composed of a base coat, a floating coat and a cover coat, wherein the base coat is composed of a zinc chromate primer and a zinc chromate primer curing agent according to a weight ratio of 8 to 1, the thickness of the base coat is 35-65mum, the floating coat is composed of epoxy resin, an epoxy curing agent, a flexibilizer and a filling agent, the thickness of the floating coat is 0.25-0.45mum, the cover coat is composed of fluorocarbon painting and functional painting according to a weight ratio of 1 to 1, and the thickness of the cover coat is 0.4-0.8mum. The composite coating has excellent corrosion resistance, friction resistance and impact resistance, is small in coating thickness and high in elasticity, can resist high-low temperature change of seawater and can be used in a wider temperature range.

An object of the invention is to provide a preparation process of a latent catalyst that can gives a latent catalyst, which can exert an excellent catalytic activity at the time of molding and therefore, can provide a resin composition having good curing property, fluidity and storage stability, in a short time in a high yield without mixing in ionic impurities. The present invention relates to a preparation process of a phosphonium silicate latent catalyst, comprising reacting (A) a proton donor represented by the following formula (1):

[Chemical Formula 1]

HY¹-Z¹-Y²H  (1)

[wherein Y¹ and Y² may be the same or different and each represents a group resulting from a proton donating substituent through release of a proton, Z¹ represents a substituted or unsubstituted organic group which bonds to the proton donating substituents Y¹H and Y²H, and two substituents Y¹ and Y² in the same molecule are capable of bonding to a silicon atom to form a chelate structure], (B) a trialkoxysilane compound and (D) a phosphonium salt compound represented by the following formula (2):

[wherein R¹, R², R³ and R⁴ may be the same or different and each represents an organic group having a substituted or unsubstituted, aromatic or heterocyclic ring or represents a substituted or unsubstituted aliphatic group and X⁻ represents a halide ion, a hydroxide ion or an anion resulting from a proton donating group through release of a proton], wherein the reaction is carried out in the presence of (C) a metal alkoxide compound.

The invention relates to ultraviolet (UV) gloss oil. The UV gloss oil is prepared by stirring and mixing the following components in percent by weight: 40 to 50 percent of epoxy UV resin, 10 to 12 percent of amine functional monomer, 2 to 4 percent of active diluting agent, 10 to 18 percent of photoinitiator, 1 to 3 percent of trimethylol propane triacrylate, 6 to 15 percent of acrylic resin, 6 to 8 percent of tackifier, 3 to 5 percent of lubrication leveling agent, 0.3 to 0.5 percent of defoaming agent, 2 to 4 percent of wear-resisting assistant, and 10 to 25 percent of mixing solvent. The invention also relates to a preparation method for the UV gloss oil. The UV gloss oil provided by the invention has various excellent performance, excellent binding performance with printing ink, the characteristics of high glossiness, high leveling property, little odor, high wearing resistance and the like; and moreover, the UV gloss oil provided by the invention only needs one process when used in UV glazing, a priming step is omitted, the operating cost is saved, and the work efficiency is improved.

The invention discloses polymer functional graphene and a preparation method and application thereof. Graphene is connected with a polymer through the combination of at least one of imide, amide, ester groups and amidogen, wherein the polymer is a polymer at least containing one benzene ring and with the molecular weight of 200-500,000 and interacts with the graphene through covalent bonds, hydrogen bonds and/or pi-pi conjugation. The polymer functional graphene is excellent in dispersion property in non-polar solvents and excellent in dispersion stability, and cannot precipitate after long-time storage for multiple months; according to the adopted preparation method, the polymer with amidogen, hydroxyl and carboxyl reacts with epoxy, hydroxyl and the like on the graphene and then is subjected to covalent grafting on the surface of the graphene, and the grafting rate of the polymer reaches 30% or above. In addition, the obtained polymer functional graphene can be widely applied to lubricating oil, plastic, rubber, paints, adhesives, fibers and other fields, and has potential application value.

The invention relates to a selenium-containing coating agent for a sustained release fertilizer special for selenium-rich agricultural products and a preparation method for the selenium-containing coating agent. The selenium-containing coating agent contains the following components: cellulose, polyvinyl alcohol, acrylic resin, epoxy resin, a crosslinking agent, an emulsifying agent, an initiator, selenite and deionized water. The invention also provides a method for preparing the selenium-containing coating agent. Selenium is dispersed in a coating agent, and the selenium is slowly released;and the prepared sustained release fertilizer can meet the requirements of the selenium-rich agricultural products in all growth periods through one-time application, solves that problems that a selenium-enriching agent is required to be sprayed on leaf surfaces for multiple times to cause high labor consumption and human poisoning is caused by improper spraying, and also overcomes a defect that the utilization rate of a selenium-enriching fertilizer through soil application is low. The sustained release fertilizer prepared from the coating agent has effects of improving fertilizer utilization rate, increasing crop yield and reducing environmental pollution.

The invention relates to a double-component epoxy zinc-enriched primer and the making method thereof, used in anticorrosive engineering of steel constructions, such as pipelines, shop equipment, ships, bridges and storage tanks, comprising: adding mixed solvent of dimethylbenzene and normal butanol in epoxy resin, then adding in surface active modified polyurethane, gamma-glycidol trimethoxy silane, silicon oil and zinc powder, and mixing uniformly, grinding and then adding in polyurethane wax and blending uniformly into solution A; composing solution B by polyurethane and dimethylbenzene; and it is mixed of solutions A and B as used, where the content of zinc powder in the coating is above 80%, and it has excellent anticorrosive performance, convenient to construct.

The invention discloses a method for preparing stainless steel fiber resin matrix composite conductive plastics. A resin material contains stainless steel fibers accounting for 3-40% of the overall weight, epoxy emulsion and silane coupling agent compound treating fluid are used as interface compatilizers, and a resin material layer is uniformly coated on a stainless steel fiber surface, so that the stainless steel fiber resin matrix composite conductive plastics are prepared. The method includes the steps: performing surface treatment for the stainless steel fibers by the aid of the epoxy emulsion and the silane coupling agent compound treating fluid and drying the stainless steel fibers in a drying oven; pulling out the stainless steel fibers by the aid of a coating die to coat the resin material on the stainless steel fiber surface; and dicing the stainless steel fibers into particles by the aid of a dicing cutter to obtain particles of the stainless steel fiber resin matrix composite conductive plastics. The conductive plastics prepared by the method have excellent mechanical performance and electrical conductivity, and the lowest volume resistivity can be 10-1omega.cm. Coaxial flange method test results indicate that the electromagnetic shielding property of the conductive plastics with the thickness of 2mm ranges from 40dB to 65dB within the frequency range from 30MHz to 1000MHz.

The invention relates to the technical field of epoxy structural adhesives, in particular to a single-component epoxy structural adhesive for waterproof sealing. The single-component epoxy structuraladhesive is prepared from the following raw materials in parts by weight: 100 to 150 parts of epoxy resin, 30 to 90 parts of multifunctional epoxy resin, 50 to 150 parts of a curing agent and 30 to 120 parts of a hydrophobic filling material. The invention further discloses a preparation method of the single-component epoxy structure adhesive for waterproof sealing. The single-component epoxy structure adhesive for waterproof sealing is high in bonding strength, low in water vapor transmittance, excellent in high-temperature and high-humidity resistance, excellent in high-temperature and low-humidity resistance, and is excellent in universality on bonded base materials.

Provided is an acrylic flame retardant adhesive composition, including: (A) 100 parts by mass of an acrylic polymer containing a carboxyl group, with a glass transition temperature of 5 to 30° C., (B) 1 to 20 parts by mass of a resol-type phenol resin, (C) 1 to 20 parts by mass of an epoxy resin, (D) 0.1 to 5 parts by mass of a curing accelerator, (E) a bromine-based flame retardant, in sufficient quantity to produce a bromine content within the entire composition, excluding the component (F), of 15 to 40% by mass, and (F) 10 to 100 parts by mass of an inorganic filler. Also provided are an acrylic adhesive sheet that contains an adhesive layer including this composition and a method of bonding two substrates using this acrylic adhesive sheet. The acrylic adhesive sheet exhibits excellent adhesiveness, heat resistance, workability, handling properties and flame retardancy, and the acrylic adhesive composition is useful in the production of such an adhesive sheet.

The invention discloses a method for producing a lead acid battery pole plate corrosion layer through mounting, which belongs to the technical field of metallographic sample preparation. The method comprises the steps of preparation of a pole plate, preparation of a mounting die, preparation of an epoxy resin inlay material, primary mounting, sampling by wire cutting, and secondary mounting. The method fills the blank of the method for producing the lead acid battery pole plate corrosion layer through mounting, the operation is easy, structure of the pole plate corrosion layer can not be destroyed, the method is safe and reliable, and is especially suitable for positive and negative pole plates of the lead acid battery, and is used for producing lead acid battery pole plate corrosion layer through mounting.

The invention discloses a strong anti-corrosion treatment technique for the surface of a carbon steel valve. The strong anti-corrosion treatment technique specifically comprises the steps that firstly, a carbon steel valve body is deoiled through ultrasonic waves; secondly, rust removal and passivation are conducted on the surface of the valve body after polishing and shot blasting are conducted on the surface of the valve body; thirdly, high-pressure washing and ultrasonic cleaning are conducted on the valve, and the valve is completely cleaned through blowing by means of an air gun; fourthly, acide triphosphorique epoxy anti-corrosive primer is smeared on the surface of the valve body after the third step is completed, and then the surface of the valve body is dried; fifthly, the anti-corrosion primer of the valve body obtained after the fourth step is coated with high-solid coating paint, and the valve body coated with the high-solid coating paint is dried sufficiently; sixthly, the valve body obtained after the fifth step is coated with epoxy celluloid paint and then dried; seventhly, the valve body obtained after the sixth step is coated with asphalt paint and then dried; and eighthly, the adhesive force of the asphalt paint on the outer surface of the valve body is detected through a cross-cut tester gridding method. By the adoption of the strong anti-corrosion treatment technique for the surface of the carbon steel valve, utilization of the valve in the severe environments such as the humid environment is facilitated, frequent maintenance and replacement are avoided, and the service life of equipment is prolonged.

The invention discloses a preparation method of large-molecular weight perfluoropolyether acyl fluoride by negative-ion ring opening polymerization of hexafluoropropylene oxide. The negative-ion ring opening polymerization is carried out on hexafluoropropylene oxide to obtain the acyl fluoride of which the structural formula is CF3CF2 (CF2OCF (CF3)) nCOF under the condition of the composite catalyst which consists of a fluoride-containing organic solvent, alkali metal fluoride and polybasic ether, wherein the average molecular weight of the acyl fluoride is greater than 2000, molecular weight distribution is narrow, and the structure of the acyl fluoride can be converted into the structure of which the tail end is -OH, -COOH and -NH2 due to the activity of the acyl fluoride, so that the technology can be further used for the synthesis of polyester resin, epoxy resin and the like.

Provided are a resin composition which offers both high transparency and a low linear expansion coefficient and can be used as a material for a dry film, and also a dry film obtained from this composition, an optical waveguide, and a photoelectric composite wiring board. The resin composition for an optical waveguide includes: (A) an epoxy resin constituted by a solid epoxy resin with one or less hydroxyl group in a molecule, and a liquid epoxy resin with one or less hydroxyl group in a molecule; (B) a curing agent with one or less hydroxyl group in a molecule; and (C) a nanosize silica sol, and contains no compound including two or more hydroxyl groups in a molecule as a resin component.