41 results about "Aminosilochrome" patented technology

The invention discloses a bioactive material with anti-inflammatory and repairing functions as well as a preparation method and application of the bioactive material. The preparation method comprises the following steps: modifying silicon ions through amino siloxane to obtain aminated bioactive particles, and mixing the aminated bioactive particles with sodium hyaluronate, polyethylene glycol and cerium oxide particles to prepare the bioactive material with anti-inflammatory and repairing functions. By introducing the bioactive particles, the expression level of inflammation-related genes TNF-alpha and IL-6 can be remarkably inhibited, an excellent inflammation inhibition function is shown, proliferation and differentiation of cells can be promoted, and therefore rapid repair of damaged parts can be accelerated, and the treatment effect is good. The bioactive material can scavenge free radicals to inhibit excessive occurrence of inflammation at damaged tissue parts and further promote tissue regeneration and repair.

The invention discloses a high-flexibility PET decorative film and a preparation method thereof, and belongs to the technical field of PET decorative films. According to the high-flexibility PET decorative film, the self-made flame retardant and 1, 3-benzene-5-boric acid are pre-polymerized to obtain a prepolymer, then the prepolymer, ethylene glycol and terephthalic acid are mixed to react, and then (4-carboxyl-2-nitrophenyl) malonaldehyde is used for blocking to obtain flame-retardant PET. The preparation method comprises the following steps: carrying out a pre-mixing reaction on flame-retardant PET and a modified nucleating agent, internally mixing the pre-mixed material with an antioxidant and a lubricant, carrying out extrusion granulation, and carrying out melt extrusion, sheet casting, two-way stretching and heat setting by using a double-screw extruder to obtain a PET base film; and finally, plating aluminum on the PET base film. The self-made flame retardant is obtained by enabling amino siloxane and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to react with each other; the modified nucleating agent is obtained by modifying calcium carbonate with glycine; the high-flexibility PET decorative film prepared by the invention has good flexibility, flame retardance and antistatic property.

The invention discloses a sewage treatment membrane and a preparation method thereof, and relates to the field of sewage treatment. When the sewage treatment membrane is prepared, porous nano titanium dioxide, 3, 5-diaminopyrazole and benzo [1, 2-B: 3, 4-B ': 5, 6-B'] trithiophene-2, 5, 8-trialdehyde are uniformly mixed to prepare modified nano titanium dioxide; the preparation method comprises the following steps: reacting 1, 3, 5, 7-tetramethylcyclotetrasiloxane, 1, 3-bis (3-aminopropyl) tetramethyldisiloxane, 2-vinyl imidazole and 1-allylhydantoin to prepare functionalized amino siloxane; and uniformly mixing p-phenylenediamine, functionalized amino siloxane, pyromellitic dianhydride, modified nano titanium dioxide and zinc nitrate hexahydrate, and treating with a sodium hypochlorite solution to obtain the sewage treatment membrane. The sewage treatment membrane prepared by the invention has excellent heavy metal ion complexing property, antibacterial property and photocatalytic degradability.

The invention discloses a preparation method and application of an anti-yellowing modified amine epoxy curing agent, and belongs to the technical field of epoxy curing agents. The yellowing-resistant modified amine epoxy curing agent is prepared from the following components in parts by weight: 70 to 100 parts of amino siloxane terminated diimine pyrrolidone compound and 5 to 10 parts of fumed silica, the amino siloxane terminated diimine pyrrolidone compound is prepared by bonding an aldehyde pyrrolidone compound and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane, and the amino siloxane terminated diimine pyrrolidone compound is prepared by bonding an aldehyde pyrrolidone compound and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane. Amino serving as a curing active center, siloxane of a flexible adjusting chain segment and a weather-proof barrier, cyclic amide of a rigid reinforcing unit and imine bonds are integrated into one molecule through chemical bonds, so that the compatibility problem possibly caused by physical blending is avoided; the epoxy resin curing agent provided by the invention has yellowing resistance, good mechanical properties and high curing efficiency.

An aqueous coating composition comprising an aminosiloxane ester copolymer, an acrylic or polyurethane polymer, a surfactant, and water. The aqueous coating composition can be prepared by mixing an aqueous emulsion comprising an aminosiloxane copolymer, a surfactant, and water with an aqueous organic binder or dispersion. The aqueous coating composition can be used for leather treatment. The aqueous coating composition can be applied to a leather substrate and dried to remove water, thereby providing a coating on the leather substrate having a low coefficient of friction.

The application relates to the technical field of PET sheets, in particular to an anti-static impact-resistant PET sheet and a preparation method thereof. The anti-static impact-resistant PET sheet of the application comprises PET resin and a modifier. The PET resin and the modifier are melt-blended, extruded and sliced to prepare the anti-static impact-resistant PET sheet. The modifier has an important influence on the anti-static performance and the impact resistance of the PET sheet. The preparation method of the modifier comprises the following steps: firstly, unsaturated glycidyl ester is reacted with amino siloxane; then, the unsaturated glycidyl ester is grafted on the POE molecular chain through melt grafting; finally, the acid-doped polyaniline layer is coated by using an in-situ polymerization method. The modifier obtained through the above preparation method has good compatibility with the PET resin, the interface bonding strength between the POE and the polyaniline is high, in addition, organic montmorillonite and nano zinc oxide can be introduced into the above modifier, and the anti-static performance and the impact resistance of the PET sheet can be further improved.

The invention discloses a preparation method and application of a nano manganese oxide compound, and the preparation method comprises the following steps: dissolving an amino siloxane compound in water containing dissolved oxygen to obtain 8lt; an aqueous solution of an aminosiloxane compound having a pH < = 12; adding a Mn < 2 + > solution into the amino siloxane compound aqueous solution, and reacting at room temperature; and after the reaction is performed for preset time, adding acid to terminate the reaction to obtain a nano manganese oxide dispersion liquid, and centrifugally washing to obtain the nano manganese oxide. The preparation method is mild in reaction condition, the nano manganese oxide can be rapidly prepared, the obtained nano manganese oxide has oxidase-like catalytic activity, and a nitrite detection system constructed based on the nano manganese oxide has the characteristics of low detection limit, high sensitivity, strong anti-interference performance, good selectivity and the like.

A process for treating a textile to impart hydrophilicity includes applying an aminosiloxane ester copolymer emulsion to the textile and drying the textile. The aminosiloxane ester copolymer emulsion includes a surfactant and water in addition to the aminosiloxane ester copolymer.

An aqueous coating composition includes a hydroxyl – functional aminosiloxane ester copolymer, a polyurethane binder, a surfactant, and water. The aqueous coating composition can be prepared by mixing an aqueous emulsion comprising the hydroxyl – functional aminosiloxane ester copolymer, the surfactant and water with an aqueous polyurethane emulsion or dispersion. The aqueous coating composition is useful for leather treatment. The aqueous coating composition may optionally be combined with a crosslinker. The aqueous coating composition may be applied to a leather substrate and dried to remove water, thereby providing a coating with a low coefficient of friction on the leather substrate.

Disclosed are techniques for delaying initiation of coagulation and suppressing fibrin formation. The disclosed techniques may include providing a percutaneous blood pump that may include a metal or ceramic surface (such as a surface of a shaft, bearing, rotor, stator, etc.) that has been modified with a bifunctional modifier. The modified surface may be within a motor section and / or pump section of the blood pump. The modified surface may be configured to interact with blood. When blood is allowed to interact with the modified surface, a desirable microenvironment may be formed. The bifunctional modifier may be a functionalized aminosilane, a functionalized aminosiloxane, and / or a functionalized silanetriol. The blood pump may be configured to have a purge fluid pass through at least a portion of the motor section and / or the pump section. The purge fluid may be free of anticoagulants.

The invention provides an epoxy curing agent as well as a preparation method and application thereof. The preparation method of the epoxy curing agent comprises the following steps: carrying out first reaction on a first mixed reaction system containing amino siloxane and a chain extender to obtain an intermediate product of which the main chain contains a-Si-O-Si-bond and the side chain contains amino; performing a second reaction on a second mixed reaction system containing the intermediate product and a cross-linking agent to obtain the epoxy curing agent, wherein the cross-linking agent comprises an acid cross-linking agent. A coating film formed by the epoxy resin coating containing the epoxy curing agent has excellent high temperature resistance and good flexibility.

Disclosed are techniques for delaying initiation of coagulation and suppressing fibrin formation. The disclosed techniques may include providing a percutaneous blood pump that may include a metal or ceramic surface (such as a surface of a shaft, bearing, rotor, stator, etc.) that has been modified with a bifunctional modifier. The modified surface may be within a motor section and / or pump section of the blood pump. The modified surface may be configured to interact with blood. When blood is allowed to interact with the modified surface, a desirable microenvironment may be formed. The bifunctional modifier may be a functionalized aminosilane, a functionalized aminosiloxane, and / or a functionalized silanetriol. The blood pump may be configured to have a purge fluid pass through at least a portion of the motor section and / or the pump section. The purge fluid may be free of anticoagulants.

The present application belongs to the field of coating, and particularly relates to a rigid surface treatment agent, a preparation method thereof and associated coating, coating layer and protective material, wherein the preparation steps of the rigid surface treatment agent are as follows: polymerizing aminosiloxane to obtain a polyaminosiloxane sol; then performing a first-stage grafting reaction with formula 1 to obtain a modified polysiloxane grafted with formula 1; and performing a second-stage grafting reaction on the modified polysiloxane, formula 2 and an isocyanate crosslinking agent to modify formula 2 on the modified polysiloxane, thereby obtaining the rigid surface treatment agent. The present application modifies formula 1 in advance in the polyaminosiloxane sol, and then modifies formula 2, thereby obtaining a network-like polyaminosiloxane surface treatment agent with excellent rigidity, which greatly enhances the adhesion and mechanical strength of the coating layer, effectively improves the wear resistance, and has excellent light transmittance.

The present invention discloses an optical fiber for high-temperature non-fading and non-migrating optical cables and a preparation method thereof, and relates to optical fibers. The present invention first adds a curing monomer and 3-aminopropylmethyldimethoxysilane to the acrylic resin of the inner coating layer. The additive does not contain small molecule active substances, thereby avoiding the migration phenomenon; aminosiloxane can enhance the adhesion between the high-temperature resistant acrylate layer and the polyimide layer. Secondly, maleic anhydride and 4,4'-diaminodiphenyl ether are used as diamine monomers as reaction raw materials to synthesize a diamine monomer containing a diimide unit. A thermosetting polyimide film having a dynamic imine bond in the molecular backbone is prepared by an amine-aldehyde condensation reaction. The primary amine group in the aminosilane coupling agent is used to promote the reversible bond exchange reaction of the imine, thereby achieving self-repair. After long-term use, the optical fiber can be repaired after a large area of ​​delamination and peeling of the coating is repaired, thereby improving the high temperature resistance of the optical fiber. The optical fiber prepared by the present invention has a high-temperature stable effect.

The present invention relates to the technical field of polymer elastomers, and in particular to a polymer elastomer and a preparation method thereof. The mechanical properties of polymer elastomers produced by conventional methods are poor. In view of the above problems, the present invention provides a polymer elastomer, wherein a cross-linking agent is added during the polymerization reaction of polyethylene glycol and dicarboxylic acid. The cross-linking agent is an aminosiloxane containing two amino groups, which can participate in the polymerization reaction of polyethylene glycol and dicarboxylic acid. The amino groups in the cross-linking agent undergo amidation reaction with the carboxyl groups in the reaction system, thereby being introduced into the molecular structure of the elastomer in the form of chemical bonds. The aminopropyldimethylsilyl-terminated polydimethylsiloxane has better flexibility than other aminosiloxanes. The introduction of its molecular structure will further improve the overall flexibility and mechanical strength of the polymer elastomer, so that the polymer elastomer has better tolerance under high strain conditions.

Disclosed are techniques for delaying initiation of coagulation and suppressing fibrin formation. The disclosed techniques may include providing a percutaneous blood pump that may include a metal or ceramic surface (such as a surface of a shaft, bearing, rotor, stator, etc.) that has been modified with a bifunctional modifier. The modified surface may be within a motor section and / or pump section of the blood pump. The modified surface may be configured to interact with blood. When blood is allowed to interact with the modified surface, a desirable microenvironment may be formed. The bifunctional modifier may be a functionalized aminosilane, a functionalized aminosiloxane, and / or a functionalized silanetriol. The blood pump may be configured to have a purge fluid pass through at least a portion of the motor section and / or the pump section. The purge fluid may be free of anticoagulants.

The present application discloses a self-growing nanowire-reinforced silicon carbide aerogel material and a preparation method thereof. The invention comprises the following steps: uniformly mixing ethanol, terephthalaldehyde, siloxane, aminosiloxane, deionized water and acid, and fully reacting to obtain a sol; heating the sol to obtain gel A; subjecting gel A to multiple organic solvent replacements and then drying to obtain aerogel A; impregnating aerogel A into the sol obtained in the first step to obtain a mixture; heating the mixture to obtain gel B; subjecting gel B to organic solvent replacement and then drying to obtain aerogel B; repeating the impregnation, heating, replacement and drying, and finally subjecting the aerogel to high-temperature heat treatment to obtain a self-growing nanowire-reinforced silicon carbide aerogel.

A waterborne coating composition comprising an aminosiloxane copolymer, a polyurethane polymer, a surfactant, and water. The waterborne coating composition can be prepared by mixing an aqueous emulsion comprising the aminosiloxane copolymer, surfactant, and water with an aqueous polyurethane emulsion or dispersion. The waterborne coating composition can be used for leather treatment. The waterborne coating composition can be combined with a crosslinking agent, applied to a leather substrate, and dried to remove water, thereby providing a coating with a low coefficient of friction on the leather substrate.

This invention belongs to the field of fine chemical technology, specifically an intrinsically alkaline, self-polishing, underwater superoleophobic marine antifouling coating and its preparation method. The marine antifouling coating of this invention comprises: 40-80 parts acrylic resin, 2-20 parts aminosiloxane, 0.5-7.5 parts aliphatic tertiary amine, 20-45 parts solvent, and 0-5 parts additives. This coating achieves multiple antifouling effects, including intrinsic surface alkalinity, underwater superoleophobicity, and biomimetic micro / nano structure, without the need for external antifouling agents, relying on the spontaneous microphase separation of aminosiloxane in the resin matrix. This coating is low in cost, environmentally friendly, and has stable antifouling performance, making it suitable for antifouling coatings in various applications such as ships, pipelines, marine industrial facilities, and aquaculture facilities in seawater environments. It can also be used as an antibacterial coating.

This invention discloses a method for preparing a yellowing-resistant modified amine epoxy curing agent and its application, belonging to the technical field of epoxy curing agents. The yellowing-resistant modified amine epoxy curing agent, by weight, comprises the following components: 70-100 parts of an aminosiloxane-terminated diimine pyrrolidone compound and 5-10 parts of fumed silica; the aminosiloxane-terminated diimine pyrrolidone compound is formed by bonding an aldehyde pyrrolidone compound and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane. This invention integrates the amino group (serving as the curing active center), the siloxane group (serving as a flexible regulating segment and weather-resistant barrier), the cyclic amide group (serving as a rigid reinforcing unit), and the imine bond into a single molecule through chemical bonds, avoiding compatibility problems that may arise from physical blending, and providing an epoxy resin curing agent with good yellowing resistance, good mechanical properties, and high curing efficiency.

The invention relates to the field of polyurea materials, and provides a phenylsilane modified amino siloxane oligomer, a hydrophobic anti-corrosion polyurea coating and a preparation method of the phenylsilane modified amino siloxane oligomer and the hydrophobic anti-corrosion polyurea coating in order to solve the problem that an existing polyurea material is poor in water resistance and corrosion resistance. The preparation method comprises the following steps: adding 1, 3-bis (3-aminopropyl) tetramethyldisiloxane into a reaction kettle, carrying out an end-capping reaction, and carrying out a vacuum removal process to prepare the oligomer; the structural general formula of the component A is as shown in formula (1): in the formula (1), R1-R8 are selected from phenyl or alkyl, and at least one of R1-R8 is phenyl; the component A comprises one or more compounds conforming to the structure of a formula (1). The modified siloxane oligomer provided by the invention has an amino-terminated group and a phenyl side chain, and can generate a prepolymer with isocyanate, and further generate polyurea with a polyurea component B. Due to hydrophobicity and stability of a phenyl side chain and a siloxane chain segment, water resistance and corrosion resistance of polyurea are greatly improved.

The invention provides a synthetic method of an organosilicon nonionic surfactant. The method comprises the following steps: adding amino siloxane and a proper amount of a catalyst into a high-pressure reaction kettle under negative pressure, introducing nitrogen to replace air in the reaction kettle, then heating to 110-140 DEG C, introducing ethylene oxide, reacting under the reaction pressure of 0.3-0.5 MPa, and after the reaction pressure is constant and the reaction is complete, cooling to room temperature to obtain the amino siloxane. And when the temperature in the reaction kettle is reduced to 60-80 DEG C, introducing nitrogen to blow out the organosilicon nonionic surfactant. The preparation method provided by the invention is simple, the technological process is environment-friendly and safe, the product purity is relatively high, and the method is suitable for large-scale production.

The present invention discloses a UV-resistant perfluoropolyether siloxane, its preparation method, and application. The chemical structure of the perfluoropolyether siloxane is shown in Formula I, where m and n are each independently an integer greater than or equal to 1. By introducing two functional groups, a small molecule UV absorber and an aminosiloxane, into a bishydroxy perfluoropolyether, the present invention significantly improves the UV resistance and abrasion resistance of the coating, imparting an excellent hydrophobic and antifouling effect. Furthermore, the presence of multiple silicon-oxygen bonds effectively enhances the coating's adhesion and improves its durability. #imgabs0# Formula I

This invention belongs to the field of lubricating oil additive technology, specifically relating to a composite additive for pure electric vehicle gearbox oil and its preparation method. By mass percentage, it comprises the following components: 8-12% antioxidant, 10-15% friction index improver, 0.1-0.5% antifoaming agent, 70-78% anti-wear agent, and 2-5% rust inhibitor. The antioxidant is aminosiloxane-modified phenylphenothiazine, and the antifoaming agent is perfluorocyclobutyl aryl ether silicone oil. In this invention, in the aminosiloxane-modified phenylphenothiazine, a benzene ring is attached to the N- group of phenothiazine, reducing the polarity of phenothiazine. Furthermore, the siloxane segments can isolate the polar sulfoxide products generated after the oxidation of phenylphenothiazine. The flexible structure of the siloxane chain can encapsulate the active groups of phenothiazine, reducing side reactions with metal ions and decreasing sludge formation. Additionally, the amino group in the aminosiloxane-modified phenylphenothiazine can neutralize acidic oxidation products, reducing metal saponification reactions and further reducing sludge formation.

A curable composition includes an aminosiloxane ester copolymer and an aldehyde-functional organosilicon compound. The composition may cure at room temperature without the use of a tin catalyst.

The invention relates to the technical field of water-based cleaning agents, in particular to a water-based cleaning agent and a preparation method and application thereof.According to the water-based cleaning agent, amphiphilic molecules are formed through chemical grafting of beta-cyclodextrin-PEO derivatives and siloxane and serve as core components, and a bio-based solubilizer and a corrosion inhibitor are supplemented; the preparation method comprises the following steps: firstly, preparing a cyclodextrin-PEO derivative through ring opening polymerization of ethylene oxide; then carrying out amidation reaction with amino siloxane to construct a grafted structure; according to the invention, a cyclodextrin cavity provides molecular recognition inclusion ability, a siloxane chain segment enhances interfacial permeability, and the cyclodextrin cavity and the siloxane chain segment cooperate with each other to realize efficient decontamination; the bio-based component ensures environmental friendliness, and practical application verifies that the cleaning agent is particularly suitable for precise cleaning in high-end fields such as semiconductor manufacturing and aerospace.

The present invention relates to a high-temperature resistant powder coating and a preparation method thereof. The high-temperature resistant powder coating comprises the following raw materials in parts by weight: 100 parts of a phenolic epoxy resin; 20-30 parts of an amino-terminated adduct; 15-25 parts of melamine; 80-90 parts of a high-temperature resistant filler; and 2-5 parts of an aminosiloxane. The amino-terminated adduct is the reaction product of an amino-terminated linear polysiloxane and an epoxy mixture, wherein the epoxy mixture is a mixture of a bisphenol A epoxy resin and an alicyclic epoxy resin. The powder coating has excellent high-temperature resistance and can be used at temperatures above 300°C without damage.

A curable composition is disclosed. The curable composition comprises (I) an epoxide-functional silicone-acrylate polymer and (II) an aminosiloxane. The epoxide-functional silicone-acrylate polymer comprises acrylate-derived monomeric units comprising siloxane moieties, epoxide-functional moieties, and optionally, hydrocarbyl moieties, and the aminosiloxane comprises an average of at least two amine functional groups per molecule. A method of preparing the curable composition is also disclosed, and includes reacting (A) an acryloxy-functional organosilicon component, (B) an epoxy-functional acrylate component, and optionally (C) an acrylate component, to give the epoxide-functional silicone-acrylate polymer (I), and combining the epoxide-functional silicone-acrylate polymer (I) with the aminosiloxane (II). An aminosiloxane-silicone-acrylate copolymer prepared with the composition, a cured product comprising the same, and methods of preparing the same, are also disclosed.

A method that brings an aqueous solution containing an aminosilanol compound represented by general formula (1)(R1 and R2 represent a hydrogen atom, a C1-20 monovalent hydrocarbon group, etc., R3 represents a C1-20 divalent hydrocarbon group, R4 represents a C1-20 monovalent hydrocarbon group, and m represents an integer of 0-2.) and a condensate thereof into contact with an acidic cation exchange resin and produces an aqueous solution of a purified aminosilanol compound and aminosiloxane compound that removes metal components in the aqueous solution, the concentration of aminosilanol compound and aminosiloxane compound in the aqueous solution brought into contact with the acidic cation exchange resin being 10-70 mass %, gives an aqueous solution of a purified aminosilanol compound and aminosiloxane compound in which metal impurities contained therein are efficiently decreased.

The present discloses a prepolymer, a resin composition including the same, and article made therefrom, where the prepolymer is obtained from a mixture through a prepolymerization reaction. The mixture includes: (a) a maleimide resin, (b) an epoxy-modified cyclic siloxane, (c) an active hydrogen-containing compound. The active hydrogen-containing compound includes an aminosiloxane, a diallyl bisphenol, or a combination thereof. The prepolymer and the resin composition including the same of the present disclosure may significantly improve one or more of uniformity of an X-CTE of the article, copper foil peeling strength after copper plating, dimension stability after solder floating, and heterogeneous resin flow length.