307 results about "Biethylene" patented technology

The invention relates to an organosilicon sealant for LED (light-emitting diode) packaging, belonging to the technical field of organosilicon sealants. The organosilicon sealant comprises a component A and a component B. The component A comprises 15-25 parts of divinyl polydimethylsiloxane silicon resin and 2-6 parts of platinum catalyst. The component B comprises 50-58 parts of divinyl polydimethylsiloxane silicon resin, 50-88 parts of methylhydropolysiloxane, 2-8 parts of reaction inhibitor, 30-40 parts of fumed silica, 2-10 parts of additive KH-560 and 20-25 parts of TiO2. The vinyl silicon resin, hydrogen-containing silicon oil and tetramethyltetravinylcyclosiloxane are subjected to addition reaction under the condition of the platinum catalyst to prepare the organosilicon electronic packaging adhesive with favorable comprehensive properties. The sealant is very suitable for LED packaging.

The invention discloses organic silicon rubber, which has flame retardance, high heat conductivity, high temperature resistance and low temperature resistance and can be used for replacing the conventional organic silicon rubber. The organic silicon rubber comprises alpha,omega-divinyl polydimethylsiloxane, methyl hydrogen-containing polysiloxane, cerium oxide, zinc oxide, ferric oxide, alumina, hydroxyl ferric oxide, white carbon black, a catalyst and an aid in the weight ratio of (10-18):(1-6):(1-1.25):(5-25):(1-3):(10-12.5):(1-2.5):(10-25):(1-2.5):(0.003-1.25):(0.003-1.25).

The invention relates to a metal surface conditioning agent, which is composed of novel organic acidity, zinc nitrate, sodium molybdate, nicdel nitrate, sodium hydrogenfluoride, phytic acid, a nonionic surfactant and water; the novel organic acidity is the organic acidity obtained by respectively reacting ethene diamine or diethylenetriamine or triethylene tetramine or tetraethylenepentamine with citric acid. A metal surface treatment technology comprises the following steps: preparing the novel organic acidity, and using the novel organic acidity for complex formulation with zinc nitrate, sodium molybdate, nicdel nitrate, sodium hydrogenfluoride, phytic acid, the nonionic surfactant and water to obtain the metal surface conditioning agent. The concrete processing flow comprises the following steps: removing oil, washing, washing, pickling, neutralizing, conditioning surface, treating surface, performing post-treatment on surface or washing, performing air drying. The surface treatment technology can replace the current phosphatization technology, and has the technology advantages of environmental protection and simple operation, and is better than the phosphatization technology from the aspect of technology index.

The invention discloses a self-sharpening diamond abrasive material. The self-sharpening diamond abrasive material comprises the following raw materials by weight: 75-85% of a diamond abrasive materail, 13-20% of metal powder and 2-5% of a binding agent. The particle size of the diamond abrasive material is 0.5 [mu]m-100 [mu]m; the metal powder comprises iron, cobalt, manganese, or a mixture thereof, or an alloy; and the binding agent comprises diethylenetriamine, 1,3-cyclohexanebis(methylamine), trimethylhexamethylenediamine, or a mixture thereof or one of the above. The self-sharpening diamond abrasive material is rough in surface and has more grinding surface angles. When particles are suffering from stress, frangibility causes the particles broken, so that novel sharp cutting edge is generated and the self-sharpening property is better. The self-sharpening diamond abrasive material is particularly suitable for ultrafine grinding and polishing of magnetic heads, hard disks, optical glasses and sapphire wafers.

The invention discloses a transparent nano-ATO thermal insulation coating for an exterior wall, which comprises the compositions in percentage by weight: 62.51 to 85.47 percent of polyurethane with the weight percent solid content of between 30 and 45 percent, 10.57 to 30.06 percent of ATO wet material with the weight percent solid content of between 10 and 30 percent, 3.41 to 5.46 percent of thickening agent WT-106, and 0.15 to 1.80 percent of conventional flatting agent. The invention also discloses a phase change heat storage microcapsule coating for an interior wall, which consists of 0.5 to 5 portions of phase change heat storage microcapsules and 3 to 20 portions of conventional adhesive, wherein the phase change heat storage microcapsules comprise the following compositions in percentage by weight: 400 to 800 portions of tridecyl alcohol, 0.5 to 15 portions of azodiisobutyronitrile, 1.2 to 15 portions of sorbitan monoglyceride, 80 to 230 portions of phenyl ethylene, and 50 to 150 portions of divinyl. The transparent nano-ATO thermal insulation coating can effectively solve the problem of thermal insulation of buildings.

The invention discloses a preparation method of flame-retardant waterborne polyurethane paint. The preparation method comprises the steps of under action of a dibutyltin dilaurate catalyst, mixing 10-(2,5-dyhydroxyl phenyl)-9,10-dihydro-oxa-10-phosphaphenanthrene-10-oxide with hexamethylene diisocyanate, reacting for 1-4 hours at 90-110 DEG C, adding a nitrogen-phosphor compound into a reaction system to obtain polyurethane prepolymer, wherein a reaction temperature is 70-110 DEG C, and reaction time is 30-60 minutes; adding a chain extender and a butanone solvent into the polyurethane prepolymer, reacting for 2-5 hours at 60-85 DEG C, adding triethylamine to carry out neutralization reaction for 20-40 minutes, adding water to carry out emulsification to form waterborne polyurethane; adding manganese salt dispersion liquid, 5-hydroxytryptophane, hexachlorocyclotriphosphazene and gamma-diethylenetriamine propyl methyl dimethoxy silane into polyurethane, and shearing and stirring for 30-80 minutes under a condition with pH of 7 to obtain the flame-retardant waterborne polyurethane paint. Flame resistance and mechanical performances of the polyurethane are greatly improved.

The invention relates to a homogeneous cation exchange membrane and a preparation method thereof, the homogeneous cation exchange membrane is characterized in that: cinnamene or/and alkyl cinnamene is taken as a monomer, divinylbenzene is taken as a crosslinking agent, benzoyl peroxide or/and azobisisobutyronitrile is taken as an initiator and bromomethyl or chloracetyl poly 1, 4-dimethyl-2, 6-phenylene oxide are taken as a polymer reinforcing agent to prepare even solution which is coated on a reinforced fabric for polymerization to obtain a base membrane which is then sulfonated in a mixture of concentrated sulphuric acid and chlorosufonic acid to obtain the homogeneous cation exchange membrane. Due to adopting aromatic polymer to produce a functional group by further sulfonation, the cation exchange membrane obtained has high exchange capacity, excellent electrochemical property and even structure. In addition, as the monomer used as the solvent can be polymerized, the preparation method is a green solvent-free technology. The cation exchange membrane series with different structures and functions can be obtained by regulating the content of polymer and crosslinking degree and changing the categories of supporters and the sulfonation condition.

The invention discloses an organophosphorus active flame-proof epoxide resin solidifying agent amino phosphonate ester and the preparing method. The amino phosphonate ester comprises the following parts: 3:1:1:1 absolute ethyl alcohol, phsophorus trichloride, organic amine (the structural formula is H2N-R-NH2)and acetone. The organic amine is diethylenetriamine, triethylene tetraamine, tetraethylene pentamine or 4, 4-diaminodiphenylmethane. The method comprises the following steps: 1, synthesizing diethyl phosphate with alcohol and phsophorus trichloride; 2, generating ketoimine with acetone and the organic amine by adding the anhydrating agent; 3, generating amino phosphonate with diethyl phosphate and ketoimine. The oxygen index of the product is more than 20 and less than 34.6. The invention is provided with the simple method and the simple operation.

The invention provides a preparation method of a modified multi-wall carbon nano-tube material. The preparation method takes N,N-methylene bisacrylamide (MBA) and diethylenetriamine (DETA) as raw materials and adopts a Michael addition method for a one-step method to synthesize a golden yellow viscous liquid terminated amino hyperbranched polymer (NH2-HBP). The preparation method comprises the following steps: weighing a certain amount of NH2-HBP and putting into a three-opening flask; adding ultrapure water and completely dissolving; then adding a certain amount of terminated carboxyl carbon nano-tubes into a water bath at 45-55 DEG C; reacting for 3-5 hours at a stirrings peed of 20r/min-30r/min; then drawing and filtering to obtain modified multi-wall carbon nano-tubes; repeatedly washing the modified multi-wall carbon nano-tubes by the ultrapure water for a plurality of times; and drying at 60 DEG C to obtain the multi-wall carbon nano-tubes subjected to terminated amino hyperbranched grafting and modification. The tube walls of the grafted and modified terminated amino hyperbranched multi-wall carbon nano-tubes have a lot of amino so that the product has very good water solubility and solvent solubility; the modified multi-wall carbon nano-tube material can be used as a very good additive and can be dispersed into polymers including a polyurethane coating, a rubber elastic body, functional plastic and the like very well so that the foundation is provided for obtaining a uniform modified multi-wall carbon nano-tube polymer composite material, and the application prospect is wide.

The invention discloses a composite material for dental prosthesis and a preparation method of the composite material. The composite material is prepared from the following components in parts by weight: 20-40 parts of polyethylene, 25-40 parts of xanthan gum, 20-25 parts of hydroxy calcium phosphate, 2-8 parts of chitosan, 1-6 parts of tributyl citrate, 4-8 parts of a phase transfer agent, 2-6 parts of divinyl tetramine, 25-35 parts of 2-methyl-2-propenoic acid 2-(phosphonooxy) ethyl ester, 4-8 parts of silver lactate, 7-20 parts of titanium dioxide, 10-15 parts of silicon dioxide, 3-8 parts of an antioxidant, 4-8 parts of hydroxyanisole, 1-13 parts of calcium fluophosphate, 8-23 parts of ethanol and 25-45 parts of double distilled water. The tooth filling material disclosed by the invention is good in mechanical strength, high in intensity and good in biocompatibility, and the safety of the material to human bodies is improved. The preparation method disclosed by the invention is simple and easy to implement, and is suitable for industrial production.

The invention relates to a super-early-strength fluorine-free alkali-free liquid accelerator and a preparation method thereof. The accelerator is prepared from the following raw materials: aluminum sulfate, an organic dissolution promoter, a stabilizer, an early strength agent, a pH regulator and water. The organic dissolution promoter is formed by mixing a component A, a component B and a component C, wherein the component A is monoethanolamine, diethanolamine or triethanolamine; the component B is N-methyldiethanolamine, N,N-dimethylethanolamine or N,N-dimethylformamide; and the component C is diethylenetriamine, triethylene tetramine or tetrahydroxypropyl ethylenediamine. The stabilizer is selected from superfine sepiolite and pseudo-boehmite. The pH regulator is selected from p-toluenesulfonic acid, oxalic acid and formic acid. The early strength agent is selected from lithium sulfate, magnesium sulfate, nanometer silica sol and nanometer aluminum sol. The super-early-strength fluorine-free alkali-free liquid accelerator is good in performance, simple in preparation process, free of fluorine, alkali and chlorine and capable of meeting the performance requirements of various setting accelerator standards for alkali-free accelerators; and according to the liquid accelerator, compressive strength within 6 hours is far larger than 2.5 MPa, compressive strength within 1 day is far larger than 15.0 MPa, a compressive strength retention rate within 90 days is larger than or equal to 110%, and stability exceeds 9 months.

The invention discloses a fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and a preparation method and a utilization method thereof. The coating comprises a coating system and a curing agent; the coating system comprises epoxy resin, polytetrafluoroethylene particles, polyperfluoromethyl isopropyl ether and an organic solvent; the curing agent is prepared by reaction of diethylenetriamine and perfluorobutyric acid. The preparation method includes preparation of the coating system and preparation of the curing agent. The utilization method includes: dissolving the curing agent into a diluent, adding an obtained curing agent solution into the coating system, well mixing, coating to a required surface and curing. The fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating has advantages of excellent super-hydrophobic property, favorable abrasion resistance, water impact resistance, corrosion resistance, high adhesive power, wide application range and the like. The preparation method is simple and easy to implement and suitable for large-scale application.

The invention relates to a bi-component high-temperature resistant alcohol-soluble ink binder, as well as a preparation method and the application of the bi-component high-temperature resistant alcohol-soluble ink binder, belonging to the technical field of ink binders. The bi-component high-temperature resistant alcohol-soluble ink binder comprises a component A and a component B which are separately stored, wherein the component A contains amino-terminated polyurethane prepolymer solution; and the component B is epoxy resin alcohol solution modified by amino silane coupling agent. The preparation method of the alcohol-soluble ink binder comprises the following steps of: carrying out vacuum dehydration on polyether diol until the water content is less than 0.08%; cooling to 40-45 DEG C; sequentially adding ethyl acetate and diisocyanate while stirring; after the temperature is stable, heating up to 70 DEG C until the measured NCO value is 4-6%; cooling and adding polyether amine, diethylenetriamine, acetone, isopropyl alcohol and alcohol; heating up to 70-75 DEG C; and maintaining even backflow until ketone is completely removed, and taking the product as the component A. The bi-component high-temperature resistant alcohol-soluble ink binder can be applied to ink printing, is wide in printing application scope and good in ink attachment fastness, and can resist high temperature.

The invention discloses a semi-enclosed organic amine curing agent, which is characterized by being obtained by mixing and reacting the following substances in percentage by weight: 15-40 percent of epoxy resin, 5-12 percent of amine, 15-35 percent of ketone and 20-35 percent of solvent, wherein the epoxy resin is bisphenol A epoxy resin or bisphenol F epoxy resin; the amine is diethylenetriamineor triethylene tetramine; the ketone is methyl isobutyl ketone or ethyl methyl ketone; and the solvent is toluene or xylene or a mixture of toluene and xylene in any ratio or normal butanol or isobutyl alcohol or a mixture of normal butanol and isobutyl alcohol in any ratio. Semi-enclosed organic amine obtained by multi-step synthesis is cross-linked with epoxy resin and naturally dried into a film, the cross-linked product is de-capsulated into primary amine for further curing with moisture in the air or moisture on the surface of a substrate, and the curing agent is partially enclosed, so that the service life of reactive double-component paint can be greatly prolonged after mixing; and epoxy resin is introduced into the curing agent to form a multi-aromatic ring anti-corrosive prepolymer, so that the corrosion resistance of a final film forming substance is further enhanced.

The invention relates to a plant extract, in particular to a bilberry extract and a method for preparing the extract. The content of the bilberry extract is 55%-95%, and the bilberry extract is consistent to finger-print specified in European Pharmacopoeia. The invention also relates to the method for preparing the extract. The method comprises the following steps of extracting the bilberry extract by using macroporous adsorption resin; and concentrating and performing spraying drying on collected extracting solution. According to the method, rate of charge of divinylbenzene to esters monomers of the macroporous adsorption resin used in the method is 19:1-7:3, and a desorption agent used in a desorption process is ethanol or an acid aqueous solution of methyl alcohol or acetone.

The invention provides high-performance water-based epoxy anticorrosive coating. The coating comprises a component A and a component B. The component A is prepared from the following components in parts by weight: 60-70 parts of waterborne epoxy resin emulsion, 5-8.5 parts of styrene-acrylic emulsion, 2-3.5 parts of a zinc oxide/graphene oxide composite material, 0.5-1.2 parts of cerium-doped nanotitanium dioxide, 1-2 parts of nano attapulgite, 3-5 parts of organic bentonite, 0.2-3 part of pigment, 0.3-0.5 part of a silane coupling agent, 2-3 parts of n-butyl alcohol, 0.3-0.6 part of a dispersing agent, 0.3-0.5 part of a defoamer, 0.2-0.4 part of a leveling agent and 18-25 part of deionized water. The component B is prepared from the following components in parts by weight: 30-35 parts ofpolyether amine, 3-5 parts of diethylenetriamine, 25-32 parts of wet sericite powder and 8-12 parts of talcum powder. The anticorrosive coating is environmentally friendly, all the raw materials arematched with one another, and the prepared coating is good in anticorrosive effect, excellent in mechanical property and high in adhesive force.

The invention discloses a homogeneous anion-exchange membrane and a preparation method thereof. The preparation method is characterized by comprising the following steps: performing a reaction to obtain a uniform membrane liquid by taking chloromethylated vinyl benzene, vinyl benzene or/and alkyl vinyl benzene as a monomer, divinylbenzene as a crosslinking agent, benzoyl peroxide or azodiisobutyronitrile as an initiator, and quaternized bromomethylated poly(1, 4-dimethyl-2, 6-phenylene oxide) or quaternized chloracetylated poly(1, 4-dimethyl-2, 6-phenylene oxide) as a high molecular enhancer; carrying out a reaction to obtain a uniform membrane liquid and drying the membrane to obtain the anion-exchange membrane. The anion-exchange membrane is high in exchange capacity, good in electrochemical property, uniform in structure and good in heat resistance. As a previous functionalized reaction process is adopted without post-treatment steps, the membrane liquid is uniform and easy to coat, so that the membrane-forming property is good. The anion-exchange membrane obtained is high in mechanical strength, and the ion exchange radicals are uniformly distributed. Products in different structural forms and functions can be obtained by adjusting the content of polymers, types of solvents, quaterisation temperature and time and degree of crosslinking and changing the types of supporters.

The invention discloses a rust-proof metal coating and a preparation method thereof. The rust-proof metal coating comprises, by weight, 20-40 parts of ammonium lauryl sulfate, 10-60 parts of ribonucleoside triphosphote, 35-70 parts of titanium dioxide, 25-50 parts of polyethylene polyamine, 5-30 parts of sebacic acid, 15-50 parts of isopropanolamine, 40-80 parts of sulfitation, 25-35 parts of octadecanol phosphate sodium salt, 10-40 parts of polyester type carbamic acid ester, 30-90 parts of divinyl tetramine, 30-60 parts of tertiary butyl anthraquinone and 20-70 parts of surface active agent. The preparation method comprises the steps of evenly mixing the ammonium lauryl sulfate, the ribonucleoside triphosphote, the titanium dioxide and the polyethylene polyamine, then adding the octadecanol phosphate sodium salt and the polyester type carbamic acid ester and heating the materials to be at the temperature ranging from 80 DEG C to 90 DEG C so as to perform reaction for 20-30 min; adding the sebacic acid, the isopropanolamine, the sulfitation, the divinyl tetramine, the tertiary butyl anthraquinone and the surface active agent into water at the temperature ranging from 30 DEG C to 40 DEG C to be dissolved, then adding the mixture to perform even stirring. The rust-proof metal coating is good in rust-proof performance, foaming performance and overall performance and wide in application range.

The invention discloses an imidazoline group-containing benzotriazole derivative, and a synthesis process and application thereof. The synthesis process comprises the following steps: taking benzotriazole as a raw material, and reacting with sodium monochloroacetate/ethyl chloroacetate/ethyl bromoacetate (wherein the reacting yield of the sodium monochloroacetate is highest) to form benzotriazole acetic acid, and performing dehydration and cyclization reaction with diethylenetriamine/triethylenetetramine/tetraethylenepentamine to generate the benzotriazole imidazoline derivative. The reaction conditions are easy to control; and the yield is high. The benzotriazole imidazoline derivative has a good corrosion inhibiting effect on YG8 hard alloy and Q235 low-carbon steel in an acidic water environment.

The invention relates to a preparation method of an anion resin adsorbent for bilirubin. The preparation method comprises specific steps as follows: porous biphenyl resin with diameter being 100 mu m-1000 mu m is prepared with a suspension polymerization method by adopting 4-vinylbiphenyl as a functional monomer and divinylbenzene as a cross-linking agent, then merrifield resin is prepared through a chloromethylation reaction, finally, amine compounds react with merrifield resin, and anion polymer resin is obtained. According to the preparation method, biphenyl resin is prepared from 4-vinylbiphenyl as the functional monomer, and the number of benzene rings and reactable sites are increased. The prepared bilirubin absorbing resin has highly efficient adsorbing or removing effect on bilirubin in a solution or plasma.

The invention discloses modified waterborne polyurethane resin which consists of the following raw materials in percentage by weight: 10-20 percent of isophorone diisocyanate, 10-20 percent of polyester polyol, 5-10 percent of dimethylolpropionic acid, 5-10 percent of triethylamine, 5-10 percent of diethylene glycol, 40-60 percent of deionized water and 1-3 percent of diethylenetriamine. A synthesis method comprises the steps of (1) putting the isophorone diisocyanate into a stirrer, dropping the polyester polyol and the dimethylolpropionic acid, and generating reaction at temperature of about 60-80 DEG C for 3-5 hours; (2) adding the diethylene glycol to generate chain extension reaction for 1-5 hours, and cooling to room temperature; (3) emulsifying the deionized water with triethylamine on a high-speed dispersion machine, adding the diethylenetriamine to implement modification to obtain a light-yellow and semi-transparent waterborne polyurethane dispersoid. According to the modified waterborne polyurethane resin and the synthesis method, small-molecular polyhydric alcohols are modified through gradual polymerization reaction, so that the performance of waterborne polyurethane is improved, and the waterborne polyurethane can be widely applied; furthermore, the cost can be reduced.