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394results about How to "Soluble in water" patented technology

Efficient low-toxicity formaldehyde scavenger

ActiveCN104324583ANon-toxic or low toxicityNon-oxidizingDispersed particle separationScavengerPreservative
The invention discloses an efficient low-toxicity formaldehyde scavenger containing the following raw material components by weight: 0.5%-5% of hydrazide, 0.1%-5% of a water-soluble ester, 0.5%-10% of a moisture absorbent, 0.1%-0.5% and of a buffer, 0.05%-1% of a surface active agent, 0.02%-0.5% of a preservative and 80%-98% of water. The free hydrazine content in the efficient low-toxicity formaldehyde scavenger product is controlled in the range as low as possible by the manner of fine selection of the hydrazide raw material, control of free hydrazine content, adding of the water-soluble ester, adding of the buffer, and the like, and the efficient low-toxicity formaldehyde scavenger product has better security. The efficient low-toxicity formaldehyde scavenger product is good in formaldehyde removal effect, safe to people and objects, and simple in production process, and can be used for governance of the problem of formaldehyde exceeding the standard in new decorated residence or furniture.
Owner:广州超威生物科技有限公司

Amphoteric ionic polymer clay stabilizer and preparation method

InactiveCN102660247AIncrease molecular rigidityEnhanced encapsulationDrilling compositionSodium AcrylateAqueous solubility
The invention relates to an amphoteric ionic polymer clay stabilizer and a preparation method thereof. The polymer has water solubility, is low in use level and shows excellent temperature resistance and shear resistance. According to the technical scheme, the amphoteric ionic polymer clay stabilizer is prepared from the following raw materials and monomers in percentage by mass: 53.5-59.9 percent of acrylamide AM; 40-45 percent of sodium acrylate NaAA (obtained from neutralization of crylic acid and sodium hydroxide), 0.1-1.5 percent of N-allyl oleamide NAO and 0.1-1.5 percent of dimethyl diallyl ammonium chloride DMDAAC. The preparation method comprises the following steps: firstly adding NAO in a reactor, then adding an emulsifier and water; after complete emulsification, adding AM, NaAA, DMDAAC to prepare a solution with the total mass percentage concentration of monomer being 10-25 percent, adjusting pH to be 6-8, and introducing N2 for 20 min; then adding an initiator, continuing to introduce N2 for 20 min, and reacting for 8-12 h at 30-70 DEG C; washing with absolute ethyl alcohol, grinding and drying to obtain AM / NaAA / DMDAAC / NAO quadripolymer. The result of an anti-swelling test of 0.2wt% solution shows that the anti-swelling rate can reach 86 percent.
Owner:SOUTHWEST PETROLEUM UNIV

Water-borne epoxy resin and super-amphiphobic coat as well as preparation method and application of water-borne epoxy resin and super-amphiphobic coat

The invention belongs to the field of super-amphiphobic materials and discloses water-borne epoxy resin and a super-amphiphobic coat as well as a preparation method and application of the water-borne epoxy resin and the super-amphiphobic coat. The water-borne epoxy resin is a polymer with the structural formula of P (A-r-B) and is obtained through the polymerization reaction of a water-soluble monomer A and a monomer B, wherein the mass ratio of A and B is 1: (0.2-20), and the tail end of the monomer B is an epoxy group. The obtained water-borne epoxy resin is dissolved into solvent, then a fluorine-containing substance, particles and a catalyst are added to the solvent to obtain a mixed solution; the mixed solution is stirred for reaction, and distilled water is dropwise added to form a water solution; a base material is soaked in the water solution, or the water solution is sprayed on the surface of the base material, and the super-amphiphobic coat is formed on the surface of the base material after drying treatment. The super-amphiphobic coat is simple to construct and has excellent lyophobic and oleophobic properties and excellent durability.
Owner:GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI

Hydrophobically associating polymer, preparation method and application thereof

The invention discloses a hydrophobically associating polymer, a preparation method and an application thereof. The hydrophobically associating polymer is shown as formula I, wherein x is 0.001-0.01, y is 0.7-1.0 and X is C1, Br or I. The preparation method comprises the steps of uniformly mixing acrylic acid, acrylamide, hydrophobic monomer, light initiator and ethylene diamine tetraacetic acid in deionized water, allowing reaction in illumination conditions; and after reaction, obtaining the polymer. The invention adopts ultraviolet-induced polymerization, so that the total activation energy is low and the reaction can be performed at low temperature; the product has better repeatability and the product quality is more stable; the polymerization can be controlled by powering on and powering off, at the same time the performance of the hydrophobically associating polymer can be controlled by controlling illumination time and light source strength. The polymer of the invention shows better dissolubility and viscosity in water and can form a space network structure in the solution.
Owner:CHINA NAT OFFSHORE OIL CORP +2

Water-dilutable brushing paint based on water-soluble alkyd resins

Water-dilutable brushing paints based on water-soluble alkyd resins rendered water-soluble through neutralization of methacrylic acid groups thereon are described. The brushing paints have favorable applicational properties, especially with regard to wet-edge time and brushability.
Owner:SOLUTIA AUSTRIA GMBH

Use of water-soluble tetra sodium sulfonate phenyl porphyrin metal complex in microcontact printing

The invention discloses a method for applying a water-soluble tetra sodium sulfonate phenyl porphyrin metal complex to microcontact printing. The method comprises the following specific steps of: 1) substrate carboxylation; 2) preparation of 5,10,15,20-tetra sodium sulfonate phenyl zinc porphyrin water solution; 3) microcontact printing; and 4) chemical plating. The method has the beneficial effects that 1. the obtained pattern is exquisite and fine and a new thought is provided for the microcontact printing industry; and 2. as a printing agent, the 5,10,15,20-tetra sodium sulfonate phenyl zinc porphyrin water solution has water solubility, can reduce use of organic solvents, has the advantages of environment-friendliness, low cost and stability and has great potential in industrial application.
Owner:南通博亿峰都新材料科技有限公司

Laundry bars comprising non-staining water soluble polymeric colorants

Colored detergent bars are provided comprising water soluble polymeric colorants that exhibit excellent non-staining performance on fabrics and other contacted surfaces, including manufacturing and / or washing equipment, are easy to process into the desired detergent bar compositions, and do not exhibit any appreciable harmful effects to the environment. The particular polymeric colorants utilized in this respect are of very high molecular weight (in order to assure staining will not occur on target cleaning surfaces), are extremely water soluble, provide excellent vivid and aesthetically pleasing color shades within the target bar compositions, and are present as liquid or waxy pastes at room and at processing temperatures. The ultimate laundry bar product thus exhibits highly pleasing colors for product distinction as well as for aesthetic purposes.
Owner:MILLIKEN & CO

Preparation of water-soluble luminous silver nano cluster with double-stranded DNA as template

Provided is preparation of a water-soluble luminous silver nano cluster with double-stranded DNA as a template. Firstly, single-stranded DNA rich in cytosine base group is used, 6 cytosine base group loops are reserved in the single-stranded DNA, the total number of the cytosine base groups is 29, single-stranded DNA rich in guanine base group complements the single-stranded DNA and is added, the total number of the guanine base groups is 23, the double-stranded DNA with the 6 cytosine base group loops is formed through the annealing function and is used as the template, and synthesis is achieved through the method of adding sodium borohydride to restore silver nitrate. The preparation process is simple, easy to implement and environmentally friendly, and the preparation can be applied to the preparation of other luminous nano materials. In addition, new nano materials synthesized through the method have water solubility, a high quantum yield, light stability, good biocompatibility and other performance, and have potential wide application to the fields of biosensors, cell imaging, clinical medicine and the like.
Owner:YANCHENG INST OF TECH

Production method of modified chitosan

The invention belongs to the field of biological engineering and relates to chitosan modification. The chitosan modification comprises the following steps of: adding protein or polypeptide; adding transglutaminase; adjusting the pH value; removing precipitates after full reaction; and desalting and drying for modification. The modified chitosan produced by the technical scheme disclosed by the invention is good in water solubility, does not generate precipitate at the pH value of 3-10, and is small in viscosity. Moreover, the functions including strong adsorption, antibacterial property and the like of the chitosan are kept, and the application prospect is extensive.
Owner:NANCHANG L LIANG IND

Aqueous finish paint used for coiled material

ActiveCN101550311AImprove water resistanceOvercome the disadvantage of poor water resistance of the coating filmPolyester coatingsSolubilityEpoxy
The invention discloses an aqueous finish paint used for coiled material. For a present aqueous paint used for steel band, in the preparation of epoxy modified polyester resin in the paint, it becomes aqueous must after amine neutralization, thereby, the steel band coated by the paint has the disadvantage of poor coating film water resistance. The aqueous finish painting in the invention comprises the following components: water soluble saturated polyester resin 45-50%, pigment 25-35%, aqueous defoaming agent 0.2-0.5%, aqueous wetting and dispersing agent 0.5-0.8%, aqueous leveling agent 0.3-1.0%, ethers solvent 2-5%, water 5-10%, water soluble amino resin 5-8%baking vanish cooling catalyst 0.2-0.8%, delustering powder 0-1.0% and aqueous anti-scratch agent 0-0.1%. The invention realizes water solubility of polyester resin by dicarboxybenzenesulfonic acid sodium salt, does not need amine neutralization, and achieves coating film with good water resistance.
Owner:ZHEJIANG TRANSFER PAINT CO LTD

Hydrophobically associating water-soluble polymer (HAWSP) oil displacement agent and preparation method thereof

The invention relates to a hydrophobically associating water-soluble polymer (HAWSP) oil displacement agent and a preparation method thereof. The technical scheme is that: the HAWSP oil displacement agent comprises the following monomers and monomers in percentage by mass: 53.5 to 59.9 percent of acrylamide (AM), 40 to 45 percent of sodium acrylate (NaAA) and 0.1 to 1.5 percent of N-allyl oleylamine (NAO); and the preparation method comprises the following steps of: adding the NAO into a reactor; adding OP-10 and water; adding the AM, AA and NaOH after emulsification is performed completely to prepare a solution with the monomer total mass percentage concentration of 10 to 25 percent; adjusting the pH value to 7.5 to 11; introducing N2 for 20 minutes; adding an initiator; continuously introducing N2 for 20 minutes; reacting at the temperature of between 30 and 70 DEG C for 4 to 12 hours; washing by using absolute ethanol; and crushing and drying to prepare AM / NaAA / NAO terpolymer. The polymer has water solubility and high temperature tolerance, salt tolerance and shearing resistance, and can increase a crude oil recovery rate by over 10 percent simulatively.
Owner:SOUTHWEST PETROLEUM UNIV

Method for Production of Metal Nitride and Oxide Powders Using an Auto-Ignition Combustion Synthesis Reaction

InactiveUS20080131350A1Readily useReadily shapeMaterial nanotechnologyOxide/hydroxide preparationOxideAuto ignition
A method of preparing a high purity metal nitride and / or oxide powder is provided, comprising: heating a metal salt and an organic fuel to an ignition temperature in a nitrogen-rich atmosphere, forming a first composition; and optionally heating the first composition to a heat treatment temperature, which heat treatment temperature is above the ignition temperature and below 1000° C., in a nitrogen-rich atmosphere until the metal nitride and / or oxide powder is formed.
Owner:COLORADO SCHOOL OF MINES

Ferric ion fluorescent probe compound as well as preparation method and application thereof

The invention relates to a ferric fluorescent probe compound as well as a preparation method and application thereof. The ferric fluorescent probe compound has the structure in formula I in the specification. The preparation method comprises the following steps: mixing rhodamine B with anhydrous ethanediamine and refluxing in ethyl alcohol to prepare amide of rhodamine; protecting hydroxyl of binaphthol by chloromethyl methyl ether, reacting with N,N-dimethylformamide under the action of butyl lithium, and removing methyl of methyl ether by hydrochloric acid to obtain binaphthol with aldehyde group; finally refluxing the amide of rhodamine and the binaphthol with aldehyde group in ethyl alcohol and washing to obtain the pure ferric fluorescent probe compound. The probe compound has favorable selectivity and sensitivity for the ferric ions, is simple to treat before sample detection and free of causing toxicity to cells, and is used for detecting the ferric ions in the water environment or the biological cells.
Owner:UNIV OF JINAN

Ellagic acid supermolecule composition and preparation method

The invention relates to an ellagic acid supramolecular combination and a preparation method. The substance is an anti-oxidant and has the anti-cancer effect, and the ellagic acid supramolecular combination belongs to the technical field of drugs and health care products. The ellagic acid supramolecular combination is composed of raw materials according to the following weight ratio that ellagic acid: cyclodextrin: emulsifier is equal to 1: (1-50): (0-10). The ellagic acid, the cyclodextrin and the emulsifier are added into a colloid mill, and the ellagic acid supramolecular combination is prepared by grinding and drying. The combination has the advantages of higher solubility, high dissolution rate, good stability and higher relative bioavailability.
Owner:宿迁医美科技有限公司

Stabilized formulations of cannabinoid compositions

In one embodiment, the present application discloses powder and aqueous formulations comprising a stabilized, aqueous purified cannabis oil emulsion comprising: a) CBD and THC wherein the ratio of CBD:THC by wt / wt is from 1,050:1 to 1:1,050, and b) at least one emulsifier selected from the group consisting of Poloxamer 188, Polysorbate 80, Polysorbate 20, Vit E-TPGS (TPGS), TPGS-1000, TPGS-750-M, Solutol HS 15, PEG-40 hydrogenated castor oil, PEG-35 Castor oil, PEG-8-glyceryl capylate / caprate, PEG-32-glyceryl laurate, PEG-32-glyceryl palmitostearate, Polysorbate 85, polyglyceryl-6-dioleate, sorbitan monooleate, Capmul MCM, Maisine 35-1, glyceryl monooleate, glyceryl monolinoleate, PEG-6-glyceryl oleate, PEG-6-glyceryl linoleate, oleic acid, linoleic acid, propylene glycol monocaprylate, propylene glycol monolaurate, polyglyceryl-3 dioleate, polyglyceryl-3 diisostearate and lecithin with and without bile salts, and mixtures thereof; and the uses in the treatment of diseases.
Owner:NEW AGE NANOTECH LLC

Polyethylene glycol chitosan self-assembled nanoparticles and preparation method thereof

InactiveCN103524750AWater dispersion system is stableUniform sizePharmaceutical non-active ingredientsSolubilityNanoparticle
The invention discloses polyethylene glycol-chitosan self-assembled nanoparticles and a preparation method thereof, belonging to the technical field of preparation of a functional material. Chitosan derivative with water solubility and biocompatibility is obtained by modifying chitosan by polyethylene glycol, so as to prepare the polyethylene glycol-chitosan self-assembled nanoparticles. The polyethylene glycol-chitosan self-assembled nanoparticles have the advantages that TEMED (tetramethylethylenediamine).HCL is taken as a diluent; EDC (dichloroethane) and NHS are taken as activating agents under a mild condition; the polyethylene glycol chitosan derivative with water solubility and biocompatibility is prepared by grafting mPEG-COOH on CS in a covalent coupling manner and modifying the chitosan by PEG (polyethylene glycol), so that the nanoparticles can be formed in a water solution in a self-assembling manner.
Owner:YANGZHOU UNIV

Water-based organic silicon fluorine modified graphene oxide/epoxy resin coating and preparation method thereof

The invention belongs to the technical field of coating and discloses water-based organic silicon fluorine modified graphene oxide / epoxy resin coating and a preparation method thereof. The coating comprises a component A and a component B, wherein the component A comprises 30 to 70 parts by weight of epoxy resin, 20 to 80 parts by weight of hydrophilic polyether-containing modified epoxy resin and30 to 70 parts by weight of water; the component B comprises 10 to 40 parts by weight of a water-based epoxy curing agent, 0.1 to 10 parts by weight of organic silicon fluorine modified graphene oxide, 1 to 10 parts by weight of imvite, 1 to 5 parts by weight of zinc phosphate, 20 to 70 parts by weight of water, 0.3 to 2 parts by weight of a dispersing agent, 0.3 to 2 parts by weight of a defoaming agent, 0.3 to 2 parts by weight of a wetting agent and 0.3 to 2 parts by weight of a leveling agent; the weight ratio of the component A to the component B is 100:(40-60). The coating formed by thecoating provided by the invention has high hardness, water tolerance, acid and alkali resistance, ageing resistance, solvent resistance, salt tolerance, salt spray resistance and the like, and has high corrosion resistance.
Owner:绵阳麦思威尔科技有限公司

Preparation method of water-soluble composite InP/ZnS luminescent quantum dots for fingerprint appearance

The invention discloses a preparation method of water-soluble luminescent quantum dots for fingerprint appearance, belonging to the field of biomarkers. The chemical composition of the water-soluble luminescent quantum dots is InP / ZnS. The preparation method comprises the following steps: under the inert atmosphere, weighing and adding an indium source, a phosphorus source, a surface active agent and a methylbenzene solvent of proper amount at certain stoichiometric ratio into a reactor, wherein the heating temperature is 150-200 DEG C, reacting for 18-36 hours to obtain gray black solution; using methyl alcohol to clean for a plurality of times; putting products in a vacuum drying box at certain temperature, drying for 8-12 hours to obtain solid powder of InP; dissloving a certain amount of solid powder into an organic solvent, adding alkaline solution (pH is 7.5-10.5) containing mercaptoacetic acid and zinc ions, stirring for a period of time at the temperature of 40-60 DEG C; removing an upper organic layer and obtaining lower-layer water-phase solution; and taking a certain amount of solution, adding the alkaline solution containing the mercaptoacetic acid and the zinc ions, stirring for 0.5-1.5 hours under the irradiation of ultraviolet light and obtaining water-soluble InP / ZnS end products.
Owner:BEIJING UNIV OF CHEM TECH

Biological carbon and biological humic acid compounded soil conditioner preparation method

The invention discloses a biological carbon and biological humic acid compounded soil conditioner preparation method. The method includes: adopting excess sludge in sewage plants and tea dregs for preparing biological carbon according to a pyrolysis method, adopting composite strains for fermenting bagasse to obtain biological humic acid, compounding the biological carbon and the biological humic acid through a series of technical steps to obtain a soil conditioner, wherein the soil conditioner has certain water solubility and is capable of precipitating and adsorbing heavy metal ions in soil to realize soil improvement through ion exchange. The method is low in cost, dealing with wastes by wastes is realized by adoption of wastes as main raw materials, convenience in technical control is achieved, high product bioactivity, freeness of environmental secondary pollution and worthiness of popularization are realized.
Owner:亳州市恒顺生态科技有限公司

Improved fertilizer for saline and alkaline land and preparation method of improved fertilizer

The invention discloses an improved fertilizer for saline and alkaline land and a preparation method of the improved fertilizer. The improved fertilizer for the saline and alkaline land is prepared from the following raw materials in parts by weight: 25-28 parts of maleic anhydride, 15-20 parts of citric acid, 20-30 parts of calcium superphosphate, 10-12 parts of a sodium ion adsorbent, 2-4 parts of a microbial agent, 25-32 parts of fulvic acid, 15-20 parts of a trace element fertilizer, 30-38 parts of a chicken manure fermentation fertilizer, 20-35 parts of peat, 3-5 parts of perlite, 5-8 parts of vermiculite and 20-25 parts of smashed straw particles. The invention further provides the preparation method of the improved fertilizer for the saline and alkaline land. According to the improved fertilizer for the saline and alkaline land, various soil improving measures can be synthesized, effects of reducing salt and alkali for the saline and alkaline land are good, the water content of the soil is high, the water retention property and the fertilizer retention property of the soil are good, besides, the survival rate of planted plants is high, and virtuous cycle of the soil of the saline and alkaline land is realized.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Preparation method of water dispersible nano copper cooling lubricant for cold rolling

The invention discloses a preparation method of a water dispersible nano copper cooling lubricant for cold rolling. In the lubricant, oleate is used as a surfactant, divalent copper salt is used as a copper element, and hydrazine hydrate is used as a reducing agent. Nano copper is selected as a main raw material of the lubricant, and meanwhile, certain dispersant and surfactant are added to prepare the water dispersible nano copper cooling lubricant applicable to a cold rolling process. The invention aims at improving the lubricity of cold rolling, a friction surface can be primed and repaired to a certain extent through products of a friction chemical reaction, and thus, rolled steel has self repairing action.
Owner:BEIHANG UNIV

Selenium-rich composite vegetable powder and preparation method thereof

The invention relates to selenium-rich composite vegetable powder and a preparation method thereof. The selenium-rich composite vegetable powder mainly consists of the following raw materials in parts by mass: 30-40 parts of arctium lappa powder, 60-120 parts of pumpkin powder, 30-50 parts of spinach powder, 40-70 parts of Chinese yam powder, 30-60 parts of broccoli powder, 12-20 parts of selenium-rich carrot meal, 8-14 parts of selenium-rich henry steudnera tuber powder, and 10-18 parts of selenium-rich spirulina powder. The preparation method of the selenium-rich composite vegetable powder comprises the following steps of checking the raw materials, and screening the checked raw materials with a 40-mesh sieve; compounding the components in a compounding ratio; and performing superfine comminution so as to obtain the composite vegetable powder which can be directly brewed for drinking. The composite vegetable powder is rich in selenium, can provide selenium required by daily life of people, and can guarantee the health of bodies. The composite vegetable powder is natural and primary in taste, and rich in vitamins, dietary fibers, protein, plant crude fibers, iron, calcium, selenium and the like, has multi-vitamins and nutrients, and is high in water solubility, easy to absorb and favorable for health.
Owner:HUANGSHAN HESHI BIOLOGICAL FOOD TECH CO LTD

Liquid organic fertilizer and preparation method

Liquid organic fertilizer comprises the following ingredients: 19% of soluble nitrogen-phosphorus-potassium raw material, 30% of humic acid agent, 20% of alginic acid agent, 10% of amino acid agent, 10% of fulvic acid potassium agent, 5% of soil conditioner and 6% of chelated medium trace element agent. The liquid organic fertilizer has the benefits that the liquid organic fertilizer can quickly supplement soil nutrition, allows a plant root system to be capable of directly absorbing organic matter and chelated medium trace elements, improves crop quality, avoids physiological diseases of crops, is green and safe, achieves agricultural production and income increase, is convenient to use and pollution-free, has good prevention and treatment effects on continuous cropping diseases and soil-borne diseases, breaks soil hardening, improves a soil microorganism ecological environment, increases the organic matter, fixes nitrogen, dissolves phosphorus and potassium, reduces the usage amount of inorganic fertilizer and protects the environment.
Owner:山西年马农业科技股份有限公司

Preparation process and device of vitamin D3 microcapsule powder

The invention relates to a preparation process and a preparation device of vitamin D3 microcapsule powder. In the preparation process, VD3 oil, sunflower seed oil or corn oil, medicinal starch, maltodextrin, modified starch, white sugar, calcium phosphate and 2,6-di-t-buty-4-methylphenol (BHT) are used as main raw materials. The preparation process and the preparation device are reasonably improved and optimized, the production time is greatly shortened and the whole production process is controlled; through layer-by-layer drying and step-by-step recycling, the prepared vitamin D3 microcapsule powder has smooth and flat surface, and the safety, the fluidity, the mouth feel and the water solubility of the vitamin D3 microcapsule powder are greatly improved; the waste of resources is reduced, the continuous large-scale production is implemented, and the production cost is reduced.
Owner:豆源和(山东)食品饮料有限公司

Amido functional group polysiloxane and composition based on the same

The invention relates to an amino functional polysiloxane with formulas III and IV, a preparation method thereof and the use as a binder, and the composite based on the amino functional polysiloxane, in particular to the stable chloride-free composite of polysiloxane acidic salt and the preparation and use thereof. The R<1> and R<2> are independent and are respectively expressed by R<1> as -(CH2) pAr<1>, -(CH) pAr<1>, -(CH) pAr<1>-(CHCH2) or -(CH2) pAr<1>-(CHCH2) and / or R<2> as -(CH2) qAr<2>, -(CH) pAr<2>, -(CH) pAr<2>-(CHCH2) or -(CH2) pAr<2>-(CHCH2)-, wherein, p is equal to or more than 0 and equal to or less than 8, q is equal to or more than 0 and equal to or less than 8, and Ar<1> and Ar<2> correspond to aryl, aralkyl or aralkenyl, and n is equal to or more than 1 and equal to or less than 8, m is equal to or more than 1 and equal to or less than 8, Y is the same or different and represents alkoxyl or oxhydryl or O1 / 2; A is inorganic or organic acidic residue and actually exists as T-structure unit, and a is equal to or more than 0 and equal to or less than 2, b is equal to or more than 0 and equal to or less than 1, c is equal to or more than 0, c<*> is equal to or more than c, (a+b) is equal to or more than 0 and equal to or less than 3 and x is equal to or more than 2. The amino functional polysiloxane is also used as the binder between inorganic and organic surfaces or used in the process of coating organic polymer to inorganic surfaces, and the thickness of amino functional polysiloxane layer is less than 800nm.
Owner:GOLDSCHMIDT CHEM CORP

Electroactive polymer with water solubility and biological degradability, preparation method thereof and application thereof

The invention discloses an electroactive polymer with water solubility and biological degradability, which is prepared by a method comprising the following steps: preparing sodium polyaldehyde alginate by oxidizing sodium alginate with sodium periodate; preparing eigenstate phenyl / amino end-capped aniline oligomer by an oxidative coupling method; reducing the eigenstate phenyl / amino end-capped aniline oligomer to obtain fully reducedphenyl / amino end-capped aniline oligomer; and introducing the fully reducedphenyl / amino end-capped aniline oligomer into the sodium polyaldehyde alginate by the reaction of terminal amino in the fully reducedphenyl / amino end-capped aniline oligomer and the aldehyde in the sodium polyaldehyde alginate to obtain the aniline oligomer modified sodium polyaldehyde alginate. The invention also discloses a preparation method and application of the polymer. The polymer has the advantages of biocompatibility, water solubility, electroactive, degradability and the like; the preparation method of the electroactive polymer is simple in process and easy to control; and the electroactive polymer can be used in the field of injectable tissue engineering bracket materials or manufacturing of biological medicinal devices requiring electroactive.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV +1

Preparation method and application of waterborne polyurea modified epoxy emulsion curing agent

The preparation method and application of the water-based polyurea modified epoxy emulsion curing agent of the present invention. In the water-based polyurea modified epoxy resin curing agent, a compound containing a non-ionic hydrophilic segment is introduced into the segment, which improves the brittleness of the cured product film, enhances the compatibility with the epoxy emulsion, and improves the Toughness of the epoxy emulsion, while making the curing agent water-soluble. The polyurea segment is introduced into the epoxy resin to make the cured paint film have superior water resistance, solvent resistance, flexibility, and higher strength, thus possessing the excellent characteristics of polyurea and overcoming the epoxy resin itself. Shortcomings. The curing agent synthesized by this method solves the problems of the first-generation and second-generation curing agents, removes small-molecule active agents and small-molecule polyamines, and improves the compatibility between the curing agent and the emulsion, thereby improving the coating film. Excellent mechanical properties and water resistance.
Owner:TIANJIN UNIV
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