583 results about "Allyl glycidyl ether" patented technology

The invention discloses a polyamide and amine hybridized nanosilicon dioxide hyperbranched polymer and a preparation method thereof. The preparation method of the polymer comprises the following steps of firstly, modifying the surface of nanosilicon dioxide by using a coupling agent; then, carrying out Michael addition reaction and amidation reaction on the modified nanosilicon dioxide by using ethylenediamine and methyl acrylate; finally, carrying out functional modification by using allyl glycidyl ether to obtain a functional polyamide and amine hybridized nanosilicon dioxide monomer, and initiating polymerization reaction on the functional polyamide and amine hybridized nanosilicon dioxide monomer, acrylamide, acrylic acid and a heat-resistant and salt-tolerant monomer by using a redox initiator or azobis(isobutylamidine) initiator. The hyperbranched polymer has a network structure with a polyamide and amine hybridized nanosilicon dioxide unit as a center, has excellent shear resistance, strong thickening property, heat resistance and salt tolerance, and is wide in adaptability and capable of being used as an oil displacement agent for increasing the recovery rate of raw oil in an oil field environment with a high mineralization degree and a wide temperature range; the preparation method of the polyamide and amine hybridized nanosilicon dioxide hyperbranched polymer is reliable in principle, simple and convenient to operate and wide in application prospect.

A conductive thermoplastic elastomer composition including a continuous phase and first and second uncontinuous phases. The continuous phase and the first and second uncontinuous phases form a sea-island structure; and the first and second uncontinuous phases independently forming island structures. In this structure, the continuous phase contains a composition (A) which is a mixture of a thermoplastic elastomer and a thermoplastic resin; the first continuous phase contains a rubber component (B) containing at least one of diene rubber and ethylene-propylene-diene rubber; and the second continuous phase contains an ethylene oxide-propylene oxide-allyl glycidyl ether copolymer containing an anion-containing salt having a fluoro group and a sulfonyl group (component (C)).

The invention relates to a method for preparing nanometer silicon dioxide grafted carbon fiber reinforcements by the aid of mercapto-alkene click reaction. The method includes particular steps of 1), carrying out sulfhydrylation treatment on nanometer silicon dioxide; 2), carrying out acidification treatment on carbon fibers; 3), carrying out amination treatment on the surfaces of the carbon fibers; 4), preparing allyl glycidyl ether grafted carbon fibers; 5), preparing the nanometer silicon dioxide grafted carbon fiber reinforcements by the aid of the mercapto-alkene click reaction. The method has the advantages that the surface roughness can be improved after the nanometer silicon dioxide is grafted on the surfaces of the carbon fibers, the carbon fiber and resin wettability can be obviously improved, the method is favorable for increasing interface binding force between the carbon fibers and resin matrixes, and mechanical properties of carbon fiber reinforcement composite materials can be improved; the heat stability of the carbon fibers can be obviously improved after the nanometer silicon dioxide is grafted on the surfaces of the carbon fibers; the method is short in reaction period, high in yield and favorable for large-scale production, and byproducts are harmless.

An electroconductive rubber roller constituted of an electroconductive metal core and an electroconductive crosslinked rubber layer including an epichlorohydrin-based rubber, wherein the epichlorohydrin-based rubber is at least one copolymer selected from the group consisting of an epichlorohydrin-ethylene oxide copolymer and an epichlorohydrin-ethylene oxide-allyl glycidyl ether ternary copolymer. The ethylene oxide unit in the epichlorohydrin-based rubber is in a content of 40 to 90 mol %, and, the electroconductive crosslinked rubber layer has a heat quantity (enthalpy: ΔH) 5 mJ/mg or less as measured by a differential scanning calorimetry (DSC) and indicated by a peak appearing within a range of −20 to 150° C.

The invention discloses a hybridization structured polysiloxane flame retardant and a preparation method thereof. The hybridization structured polysiloxane flame retardant is prepared by enabling hydrogen-containing silicone oil, allyl glycidyl ether, vinyl silane substances, phosphorus-containing active substances and a silane coupling agent to react with one another under the action of a catalyst. The flame retardant comprises a great amount of organic groups such as benzene rings, a relatively long -Si-O-Si-main chain and a hybridization structure, has hydrophobicity, is relatively high in thermal stability, comprises a great number of elements such as carbon, nitrogen, phosphorus and silicon, can be used as a carbon source and a gas source in an intumescent system, meanwhile has a synergistic flame retardant effect of multiple flame-retardant elements, is good in carbonization property and high in flame-retardant efficiency, the contact angle of the composition is up to 95 DEG C, the compatibility of the composition and a high polymer can be improved, and processing requirements of the high polymer can be met.

The invention relates to a preparation method of an aminopolyether modified polysiloxane deforming agent. The preparation method comprises the following steps of: (1) adding allyl glycidyl ether and a platinum catalyst to a container, stirring and heating under the conditions of nitrogen protection and reflux condensing; after heating to a certain temperature, dropwise adding a toluene solution containing hydrogen silicon oil; at the end of reaction, removing a solvent and low-boiling-point substances on a rotary evaporator and drying to obtain epoxy modified silicon oil; and (2) adding the epoxy modified silicon oil obtained in the step (1) and an ethanol solution of polyether amine to the container, heating and stirring, reacting under the conditions of nitrogen protection and reflux condensing; at the end of the reaction, removing ethanol on the rotary evaporator and drying to obtain the aminopolyether modified polysiloxane product. According to the preparation method, hydrosilylation/ring opening amination is used, simultaneously amino groups and polyether chain segments are introduced to a polysiloxane skeleton, the obtained deforming agent has good water solubility and stability, no additives and compounding are not added, and the aminopolyether modified polysiloxane deforming agent has good defoaming and foam inhibition performances at normal temperature.

This invention provides an allyl glycidyl ether industrialized preparation method. It uses Boron trifluoride diethyl ether comoles compound as catalyst, propylene alcohol and epichlorohydrin as raw material, pass through the condensation ring-opening reactions generate 1-chloro-2-hydroxy-3- allyloxy propane, then under alkaline conditions through close-loop to obtain allyl glycidyl ether; the product yield rate is 78%, the content of 98%.

The invention provides a vulcanized rubber laminate obtained by firmly bonding an unvulcanized epichlorohydrin rubber layer and an organic peroxide-containing fluororubber layer. The laminate is obtained by thermal adhesion a layer of an unvulcanized epichlorohydrin rubber composition to a layer of an unvulcanized fluororubber composition. The epichlorohydrin rubber composition comprises 1) an unvulcanized epichlorohydrin rubber containing 3 to 15 mol % of allyl glycidyl ether unit, 2) quinoxaline-based vulcanizing agents, mercaptotriazine-based vulcanizing agents or bisphenol-based vulcanizing agents, and 3) 1,8-diazabicyclo(5,4,0)undecene-7 salts, 1,5-diazabicyclo(4,3,0)nonene-5 salts, quaternary ammonium salts, quaternary phosphonium salts, basic white carbons or an alkaline metal salt of higher fatty acid the fluororubber composition comprises an fluororubber and an organic peroxide-based vulcanizing agent.

The invention discloses a polysiloxane fire retardant containing nitrogen, phosphorus and silicon, and a preparation method thereof. The polysiloxane fire retardant is prepared through utilizing mutual reaction of hydrogen-containing silicone oil, allyl glycidyl ether, isocyanate silane and a phosphorus-containing active matter in a solvent. The fire retardant has a certain degree of polymerization, organic groups such as a benzene ring and longer -Si-O-Si- main chain are contained in a molecule, the fire retardant has favorable hydrophobicity, a contact angle reaches 118 degrees, and the compatibility of the fire retardant and a high polymer can be remarkably improved; the fire retardant is rich in carbon, nitrogen, phosphorus and silicon elements so as to have a synergistic flame retardant effect of various flame retardant elements, a high carbonization ability, and high flame retardant efficiency; the fire retardant has higher heat stability, and can meet the processing requirement of the high polymer; the polysiloxane fire retardant is rich in -Si-O-CH2CH3 group, and can be used as a modifying agent to modify other substances so as to obtain a functional fire retardant.

The invention relates to a preparation method of quaternary copolymer block organic silicon oil. The preparation method is characterized by comprising the following steps of: A, preparation of a hydrogen-containing silicon oil intermediate I: blocking with a hydrogen-containing sealing agent by taking the polysiloxane as a main raw material to obtain the hydrogen-containing silicon oil intermediate I; B, preparation of an epoxy-terminated block organic silicon oil intermediate II: adding the intermediate I and allyl glycidyl ether to obtain the epoxy-terminated block organic silicon oil intermediate II; and C, preparation of a finished product: grafting anhydrous piperazine and amino-terminated polyether to the main chain of the intermediate II, and finally obtaining the quaternary copolymer block organic silicon oil. Through the invention, the prepared quaternary copolymer block organic silicon oil does not cause the yellowing phenomenon, and has good hydrophily and strong emulsion stability; and good comprehensive handfeel can be obtained by applying a small amount of the quaternary copolymer block organic silicon oil to the textile.

Belonging to the technical field of organic silicon products, the invention relates to a preparation method of polyether polyester modified silicone oil. Involving ester exchange reaction and condensation polymerization techniques, the method consists of: firstly adding dimethyl terephthalate, ethylene glycol and zinc acetate into a reaction container to undergo ester exchange reaction, adding ethylene terephthalate, antimony oxide and polyethylene oxide into a reaction container to undergo condensation polymerization so as to obtain a polyether polyester segmented copolymer; then terminal hydrogen-containing silicone oil, allyl glycidyl ether and a Pt catalyst are added into a reaction container to undergo heat preservation reaction, performing vacuum pumping to remove low-boiling-point substances; adding polyether amine and a solvent into terminal epoxy modified silicone oil to undergo reflux reaction, conducting pressure reduction to remove the solvent so as to obtain polyether amino modified silicone oil; and mixing the polyether polyester segmented copolymer and the polyether amino modified silicone oil evenly, and carrying out heat preservation reaction to obtain the polyether polyester modified silicone oil. The emulsion has good stability, is difficult to yellow and stick rolls. Also the use effect is better than that of compounding, and the tedious compounding procedure in the application process is omitted.

The invention discloses a phosphorus-nitrogen containing halogen-free flame-retardant hyperbranched epoxy resin and a preparation method thereof. The preparation method for the phosphorus-nitrogen containing halogen-free flame-retardant hyperbranched epoxy resin comprises the steps: firstly, enabling 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, itaconic anhydride, polyol amine and trimethylolpropane to react with one another under an effect of an acidic ionic liquid catalyst to obtain hydroxyl-terminated hyperbranched polyester-amide; and enabling hydroxyl-terminated hyperbranched polyester-amide to react with mercaptoacetic acid or mercaptopropionic acid and allyl glycidyl ether in sequence to obtain the phosphorus-nitrogen containing halogen-free flame-retardant hyperbranched epoxy resin. The phosphorus-nitrogen containing halogen-free flame-retardant hyperbranched epoxy resin and the preparation method thereof, disclosed by the invention, have the advantages of simple process, narrow intermediate product molecular weight distribution, higher purity, good enhancing, toughening and flame retardant functions of the final product and wide application prospect.

The invention relates to a hyperbranched polymer, hyperbranched polymer modified organic silicone oil and application of the organic silicone oil. According to the invention, the hyperbranched polymer is mainly obtained through the reaction of polyol, acrylate and amine compounds; and hydrogen-containing silicone oil is modified with the hyperbranched polymer, allyl polyether and allyl glycidyl ether which are used as modifying agents, and the obtained modified silicone oil can well disperse an organic pigment with a low-polar surface or polar-free surface.

The invention relates to an immobilized catalytic synthesis method of an allyl glycidyl ether molecular sieve. According to the method, allyl alcohol and epoxy chloropropane at a feed weight ratio of (1.2-2): 1 are adopted as raw materials and are subjected to ring-opening reaction in the presence of a mixed catalyst of concentrated sulfuric acid and trifluoromethanesulfonic acid which are immobilized on the molecular sieve at an ring-opening reaction temperature of 50-70 DEG C, wherein the addition of concentrated sulfuric acid is 10%-30% of mass of the molecular sieve, the addition of trifluoromethanesulfonic acid is 10%-30% of mass of the molecular sieve, and the usage amount of the catalyst is 1-5% of the total mass of the reactants. The novel immobilized catalyst is high in main ring-opening reaction selectivity, small in secondary reactions and low in device corrosion; after the ring-opening reaction is completed, the catalyst easily separates from reaction products and can be recycled for at least 10 times after being separated, the environmental pollution is avoided, the production cost is decreased and meanwhile, the problem that excessive allyl alcohol is smoothly recovered and recycled is solved.

The invention discloses a click chemistry based preparation method of carbon nanotube grafted carbon fiber reinforcement. The preparation method specifically comprises the following steps: carrying out surface treatment on carbon fibers by utilizing a mixed acid to obtain acid treated carbon fibers; obtaining thiol-containing silane coupling agent grafted carbon fibers through reaction between the acid treated carbon fibers and a thiol-containing silane coupling agent; successively treating a carbon nanotube by utilizing nitric acid and hydrogen peroxide to obtain an oxidized carbon nanotube; obtaining an amino-containing silane coupling agent grafted carbon nanotube through reaction between the oxidized carbon nanotube and an amino-containing silane coupling agent; obtaining an allyl glycidyl ether grafted carbon nanotube through reaction between allyl glycidyl ether and the amino-containing silane coupling agent grafted carbon nanotube; finally obtaining the carbon nanotube grafted carbon fiber reinforcement by utilizing ultraviolet light to trigger thiol-ene click reaction. The preparation method has the advantages that the obtained carbon nanotube grafted carbon fiber reinforcement has the advantages of high surface roughness, high carbon nanotube grafting ratio, good adhesion to matrices, and the like.

The invention provides a cationic color fixing agent and a preparation method and application thereof. The cationic color fixing agent is obtained by polymerization reaction of an oil-soluble monomer, a cationic monomer and a reactive monomer in a solvent under the action of a radical initiator, wherein the oil-soluble monomer is one or the combination of several of styrene, acrylonitrile and acrylate; the cationic monomer is one or the combination of acryloxyethyl alkyl quaternary ammonium salt and/or allyl alkyl quaternary ammonium salt; the reactive monomer is one or the combination of several of allyl glycidyl ether, hydroxyl-containing acrylics, vinyl trimethoxy silane, vinyl triethoxy silane, acrylamide, crylic acid and methacrylic acid. The cationic color fixing agent is insoluble in water and can be dissolved in a weak polar solvent and/or non-polar solvent; besides, after non-aqueous solvent dyeing of reactive dyes, the cationic color fixing agent can be directly used in the on-going fixing process without washing.

The invention relates to a polymer/Ag doped nanometer ZnO long-acting antibacterial and mildew-proof finishing agent for a cotton fabric and a preparation method of the finishing agent. The existing antibacterial material for the cotton fabric is low in antibacterial performance, great in one-time dissolution, and not lasting in the antibacterial and mildew-proof performance. Ag doped nanometer ZnO is prepared by using zinc acetate and silver nitrate as precursors by a coprecipitation method; the polymer/Ag doped nanometer ZnO long-acting antibacterial and mildew-proof finishing agent is prepared by using Ag doped ZnO, allyl glycidyl ether and dimethyl diallyl ammonium chloride as raw materials via an in-situ polymerization method. The antibacterial and mildew-proof finishing agent is applied to the afterfinish of the cotton fabric; the Ag doped ZnO in the composite material and N+ in the dimethyl diallyl ammonium chloride can jointly resist bacteria to achieve the efficient antibacterial and mildew-proof performance; the hydroxyl of the cotton fabric surface can be crosslinked with the epoxy group in the polymer; the long-acting antibacterial and mildew-proof performance of the cotton fabric is improved; meanwhile, the injury to the human body caused by one-time dissolution of the nanometer antibacterial material used by the fabric is reduced.

The invention belongs to the technical field of a tackifying crosslinking agent, and particularly relates to an organic silicon hydrogen-containing tackifying crosslinking agent for addition type silicon rubber and a preparation method thereof. The tackifying crosslinking agent is prepared by performing addition reaction on high-hydrogen-content silicon oil or D4H and vinyl cyclohexene oxide or allyl glycidyl ether and then adding inhibitors. The process is simple; the reaction conditions are mild; the therepeatability and the controllability are good; the impurities in the reaction process are few; organic solvents are not used; the environment is protected; no pollution is caused. The obtained tackifying crosslinking agent has the stable performance; the tackifying and crosslinking effects can be achieved at the same time. The compatibility with silicon rubber is good; no catalyst poisoning phenomenon exists; the bonding performance of the addition type silicon rubber with metal suchas copper foil can be obviously improved; in addition, the refractive index of the organic silicon hydrogen-containing tackifying crosslinking agent is adjustable and controllable in a range of 1.40to 1.55, so that the tackifying crosslinking agent is applicable to the silicon rubber with (high and low) different refractive indexes.

The invention discloses a preparation method of a cellulose ion conductive hydrogel and the prepared hydrogel. The preparation method comprises the following steps: S1, adding cellulose in a water solution of sodium hydroxide and urea, dissolving at the temperature of -5 DEG C to -20 DEG C, and stirring to obtain a transparent cellulose solution; S2, dropwise adding allyl glycidyl ether in the cellulose solution, reacting for 20-30 hours at the temperature of 25-35 DEG C and under the protection of an inert gas; S3, cleaning a product obtained in the step S2 with diethyl ether, performing rotary evaporation so as to remove the residual diethyl ether to obtain an allyl cellulose solution; and S4, adding ammonium persulfate in the allyl cellulose solution, stirring for 3-10 minutes, then centrifuging for defoaming, and reacting for 20-30 hours at the temperature of 25-35 hours so as to obtain the hydrogel. The cellulose ion conductive hydrogel provided by the invention has high stretchability, high compressibility, high freezing resistance and excellent ionic conductivity.

The invention provides a new method for preparing single-ended double-hydroxyl alkyl polydimethylsiloxane and the preparation method of the invention is different from prior synthetic methods. The preparation method takes D3 (Hexamethylcyclotrisiloxane), allyl glycidyl ether and methylaminoethanol as starting raw materials which go through three-step reactions of anion ring-opening polymerization, hydrosilylation and epoxy ring-opening to synthesize the target product of the single-ended double-hydroxyl alkyl polydimethylsiloxane of which the product purity is over 98 percent. The invention has the advantages of simple and convenient reaction steps, easily accessible raw materials, low production cost, high product yield, high purity, etc.

The invention relates to a preparation method of a composite antibacterial finishing agent. The preparation method comprises the following steps: modifying nano zinc oxide by a silane coupling agent containing double bonds to obtain modified active nano zinc oxide; providing reaction raw materials; taking water as the solvent, and carrying out polymerization reactions among active nano zinc oxide, dimethyl diallyl ammonium chloride, carboxyl acrylic acid monomers, and allyl glycidyl ether in the presence of an initiator to obtain the composite antibacterial finishing agent. The composite antibacterial finishing agent prepared by the provided preparation method is a complex of quaternary ammonium salt copolymer and nano zinc oxide. Through the synergistic effect between quaternary ammonium cations and nano zinc oxide, the antibacterial properties of inorganic materials and organic materials can be fully exerted, the finishing agent can enable textiles to have a very good antibacterial performance, at the same time, the antibacterial finishing agent contains active groups that can interact with cotton fibers, and the antibacterial effect can last for a long term.