178 results about "Organic Silicon Compounds" patented technology

The invention relates to high-temperature-resistant flame-retardant smoke-suppressing silicone rubber and a preparation method thereof. The silicone rubber comprises the following components in parts by weight: 50-70 parts of methyl vinyl silicone rubber; 5-10 parts of an organosilicon compound; 10-20 parts of an inorganic metal oxide; 20 to 30 parts of modified carbon black; 20 to 30 parts of a compound flame retardant; 4-6 parts of a vulcanizing agent; the modified carbon black is silanized carbon black; the compound flame retardant is formed by inserting zinc borate into graphite layers. Compared with the prior art, the obtained silicone rubber has good high-temperature stability and excellent aging resistance, through synergistic compounding of the modified carbon black, the compound flame retardant and the metal oxide, the effects of smoke suppression, flame retardance and high temperature resistance are achieved, the mechanical property of the silicone rubber is remarkably improved, and the service life of the silicone rubber is prolonged. The application range of the silicone rubber product is wider, and the economic value is good.

The invention provides cosmetic loose powder and a preparation method thereof, the cosmetic loose powder provided by the invention at least contains a filler, an emollient and a solvent, and does not contain silica silylate; the bulk density of the cosmetic loose powder is 0.250 to 0.464 g / cm < 3 >; the mass percent of the solvent in the loose powder for making up is 2-20%. In the preparation process of the loose powder for making up, the solvent is dried by adopting a vacuum freeze drying process. According to the preparation method, the traditional concept that loose powder basically does not contain water is abandoned, a method for realizing a water-in-powder system by adopting an organic silicon compound is not imitated, and the powder with certain solvent content and bulk density is prepared on the basis of a vacuum freeze-drying process; the powder has enough bulkiness, and the loose powder for make-up has good fitness after being used for make-up.

This organic silicon compound is characterized by being represented by structural formula (1), and has good reactivity while having a monoalkoxysilyl group.(In the formula, X represents a monovalent to trivalent organic group including a polyoxyalkylene structure, an alkylene group having 1-20 carbon atoms, O, S, N, or the like, R1 and R2 each independently represent an alkyl group or the like having 1-10 carbon atoms, Y represents a single bond, O, S, or the like, A1, A2, A3, A4, and A5 each represent a single bond, or a divalent linking group such as a divalent hydrocarbon group having 1-20 carbon atoms, and n represents a number of 1-3.)

Organosilicon chemistry, polymer derived ceramic materials, and methods. Such materials and methods for making polysilocarb (SiOC) and Silicon Carbide (SiC) materials having 3-nines, 4-nines, 6-nines and greater purity. Processes for making SiC boules and SiC wafers utilizing such high purity SiOC and SiC.

The invention relates to a corrosion-resistant substitutive PVC (polyvinyl chloride) film and a production process thereof, and belongs to the technical field of polymer film materials. The film material is prepared from the following components in parts by weight: 100 parts of PET resin, 3.2 to 4.5 parts of organic silicon corrosion-resistant agent, 0.3 to 0.5 part of slipping agent, 0.15 to 0.2 part of nucleating agent and 4 to 6 parts of filler, according to the organic silicon corrosion-resistant agent, N-methyldiethanolamine and epoxy-terminated silicone oil are subjected to ring opening to form an organic silicon compound with N-methyldiethanolamine as a bridging chain segment, namely an organic silicon matrix, then active primary amine of tetramethylpiperidinamine and residual epoxy groups at the end of the organic silicon matrix are subjected to ring opening and end capping, an end functional hindered amine structure is introduced, and the organic silicon corrosion-resistant agent is prepared. And finally, oxalyl chloride monoethyl ester and hydroxyl group obtained after ring opening of the functional intermediate are esterified, diester short chain modification is introduced into a molecular side chain of the functional intermediate, and the medium corrosion resistance and aging corrosion resistance of the membrane material are improved through introduction of an organic silicon corrosion-resistant agent.

The invention discloses a preparation method of a SiC coating graphite base transition layer. The technical problems that in the prior art, the bonding force between a SiC coating and a graphite base is insufficient, and the compactness of the coating is poor are solved. The method comprises the following steps: gradient functionalization pretreatment: carrying out plasma microcosmic roughening treatment and organosilicon compound dipping-pyrolysis-nitriding treatment on a graphite base to form a Si-C-O-N functionalized transition layer; multi-stage pulse chemical vapor deposition is carried out, low-temperature seed layer deposition, medium-temperature growth layer deposition and high-temperature densification layer deposition are carried out in three stages, and different pulse periods and precursor combinations are adopted; in-situ plasma auxiliary treatment is conducted, and plasma treatment is conducted at the deposition stage interval and after the final stage is completed. Strong interface combination of the graphite substrate and the SiC coating is achieved through unique gradient functionalization pretreatment, the coating density is improved through the multi-stage pulse CVD technology, the performance of the SiC coating graphite base in semiconductor processing and high-temperature plasma environments is remarkably improved, and the service life of the SiC coating graphite base in the semiconductor processing and high-temperature plasma environments is remarkably prolonged.

The invention belongs to the technical field of organic silicon chemistry, and particularly relates to boron-containing adhesive addition type liquid silicone rubber. Boric acid reacts with hydroxyl vinyl silicone oil to prepare boron-containing vinyl silicone oil, the boron-containing vinyl silicone oil is used in an addition type liquid silicone rubber formula, and the formula further comprises vinyl-terminated silicone oil, hexamethyldisilazane, white carbon black, hydrogen-containing silicone oil, an alkynol inhibitor, a platinum catalyst and distilled water. The boron-containing vinyl silicone oil prepared by the invention is a part of silicone rubber, so that the problem of compatibility or stability does not exist. The adhesive addition type liquid silicone rubber disclosed by the invention has relatively good adhesion to a metal base material.

The invention belongs to the technical field of fire extinguishing agents, and particularly relates to an environment-friendly foam fire extinguishing agent based on a hydrocarbon / organic silicon compound system and a preparation method of the environment-friendly foam fire extinguishing agent. The fire extinguishing agent comprises the following components in percentage by mass: 4%-8% of dodecyl glycoside APG0810, 7%-10% of cocamidopropyl betaine CAB, 3%-5% of an organosilicon surfactant Dow Corning OFX-5211, 0.2%-0.5% of nano boron nitride, 0.2%-0.4% of xanthan gum, 1%-4% of a cosolvent, 3%-10% of an antifreeze agent and the balance of water. The total amount of the dodecyl glycoside APG0810 and the cocamidopropyl betaine is not less than 13%. The environment-friendly foam extinguishing agent does not contain perfluorooctane sulfonate and perfluorooctanoic acid which are difficult to degrade, has good stability, and is simple in preparation process, low in preparation cost and suitable for extinguishing B-type oil liquid fire disasters.

The invention discloses an antibacterial wood coating based on water-based macromolecule combination. The antibacterial wood coating comprises the following components: a water-based macromolecule matrix, nano-silver particles, nano-copper particles, nano-titanium dioxide, a propolis extract, a dispersing agent, a surfactant, an antioxidant, an organic silicon compound, an ultraviolet light absorber, sodium polyacrylate, a cross-linking agent and deionized water. According to the antibacterial wood coating based on water-based macromolecule combination, the technical problems of stability, antibacterial effect, environmental friendliness, multifunctionality and the like of the antibacterial wood coating are solved, and an efficient, lasting and environment-friendly solution is provided.

Organic silicon compounds synthesized by a method for preparing such organic silicon compounds can act as or in functional fluids and for trapping water. The method includes reacting at least one alkoxy alkyl silane of the formula (Ia) and / or a cyclic siloxane of the formula (Ib) with at least one alkoxy alkanol of the formula (II). The reaction occurs in the presence of at least one acid or at least one base, optionally in a solvent, at a temperature of 0 to 200° C.

The invention discloses a preparation method of a high-stability flexible stretchable transparent electrode, and belongs to the field of transparent electrode preparation. The method comprises the following steps: a, pretreating a substrate; b, reserving an effective area for replacing a traditional electrode on the surface of the pretreated substrate by using an adhesive tape, and spin-coating an organic silicon compound on the surface of the substrate to form a self-assembled single-layer film; carrying out spin coating on the self-assembled single-layer film by adopting AgNWs dispersion liquid, and then heating and annealing step by step to form a silver nanowire layer; carrying out pre-coating treatment on the surface of the silver nanowire by using a PH 1000 solution to prepare a conductive layer; and c, taking down the adhesive tape on the conductive layer, spin-coating a TPU solution, and then peeling off the conductive layer from the substrate to obtain the flexible stretchable transparent electrode. And one surface, attached to the substrate, of the flexible stretchable transparent electrode is an effective area of the electrode. The flexible stretchable transparent electrode prepared by the invention has excellent performances of low surface resistance, high transmittance, high deformation stability and the like.

The invention belongs to the technical field of coatings, and particularly relates to a water-based woodware varnish as well as a preparation method and application thereof. The water-based wood top-coat comprises a water-based emulsion, an organosilicon compound, a functional additive, a thickening agent, a wetting agent and water, the water-based emulsion comprises a self-crosslinking acrylic copolymer emulsion and an emulsion A; the emulsion A is selected from any one of self-crosslinking acrylic acid homopolymerized emulsion and polycarbonate modified polyurethane emulsion; the organosilicon compound comprises at least one of silane and silanol; the functional auxiliary agent comprises any one of a functional auxiliary agent 1 and a functional auxiliary agent 2; the functional additive 1 comprises a mildew preventive A and a mildew preventive B; the functional auxiliary agent 2 comprises a mildew preventive C, an ultraviolet light absorber and an ultraviolet light stabilizer; the thickeners include high shear, medium shear, and low shear polyurethane thickeners. The water-based woodware varnish disclosed by the invention has good comprehensive properties such as mildew resistance, weather resistance, chemical resistance and blocking resistance, and can be used for coating outdoor woodware or semi-outdoor woodware.

Provided is a curing reactive organopolysiloxane composition that forms a pressure-sensitive adhesive layer having excellent curing properties, a wide range of designable viscoelastic properties such as storage elastic modulus (G′) and the like, and practically sufficient pressure-sensitive adhesive strength and tensile adhesive strength. The organopolysiloxane composition comprises: (A) an organopolysiloxane having an alkenyl group; (B) an organopolysiloxane resin with 9 mol % or less of hydroxyl groups or the like relative to all silicon atoms in a molecule or resin mixture thereof; (C) an organohydrogenpolysiloxane; (D) an organic silicon compound having an alkenyl group; and (E) a hydrosilylation reaction catalyst. A ratio (molar ratio) of the substance amount of SiH groups in component (C) relative to the sum of alkenyl groups in components (A), (B) and (D) is 1.0 or more.

The present application relates to the low temperature curing high-strength benzoxazine type silicone adhesive formula and use method, the formula includes the benzoxazine group containing organic silicon compound and organic alkali compound, the mass ratio of benzoxazine group containing organic silicon compound, organic alkali compound is 100:0.1-20.The adhesive of the present application is based on the cooperation between the benzoxazine group containing organic silicon compound and the basic catalyst, can be cured at low temperature, realize the higher strength bonding.The benzoxazine type silicone adhesive formula provided by the present application can be directly used as adhesive, and the bonding strength is high;It can also be used as a basic formula, used as an adhesive after adding other fillers, to meet the different needs of various special occasions.

A rustproofing agent composition according to the present invention has favorable storage stability and comprises an aqueous solution of organic silicon compounds that includes (i), (ii), or both. (i) An organic silicon compound represented by formula (1) and an organic silicon compound represented by formula (2). (ii) A co-condensate of an organic silicon compound represented by formula (1) and an organic silicon compound represented by formula (2). (In the formulas, the R1's each independently represent a hydrogen atom, a C1–10 alkyl group, or a C6–10 aryl group, the R2's each independently represent a C1–10 alkyl group or a C6–10 aryl group, X represents a monovalent group that includes a nitrogen-containing heterocycle, the m's are each independently an integer from 1 to 20, inclusive, the n's are each independently an integer from 1 to 3, inclusive, p is an integer from 1 to 10, inclusive, and q is an integer from 0 to 5, inclusive.)

The application provides an alkali-activated cementitious composition and applications thereof. The alkali-activated cementitious composition of the application comprises a cementitious material, an alkali-activator and a retarder, wherein the retarder comprises one or more of the organic silicon compounds represented by the following formulae I-1 to I-4. The alkali-activated cementitious material prepared from the alkali-activated cementitious composition of the application not only has suitable initial and final setting times, but also has a higher compressive strength.

Organosilicon chemistry, polymer derived ceramic materials, and methods. Such materials and methods for making polysilocarb (SiOC) and Silicon Carbide (SiC) materials having 3-nines, 4-nines, 6-nines and greater purity. Processes and articles utilizing such high purity SiOC and SiC.

The invention relates to the technical field of organosilicon chemistry, in particular to a preparation method of a phenyltrimethoxysilane oligomer. According to the method, a photooxidation reduction catalytic system is adopted, a hydrolytic condensation reaction is carried out under the irradiation of visible light, the ratio of M / T substance amount is controlled, a proton coupling electron transfer mechanism is adopted to activate silane bonds, and an acid-base catalyst does not need to be additionally added. Efficient synthesis is realized in a continuous flow microchannel reactor by introducing innovative components such as a cyanoalkyl silane end-capping reagent, an organic titanium prepolymer catalyst and polyhedral oligomeric silsesquioxane. The obtained oligomer has a controllable molecular structure and excellent performance, the methoxy residual quantity is lower than 0.3%, the yield reaches 90% or above, the viscosity is controlled to be 18-25 mm < 2 > / s, the refractive index is 1.460-1.465, and the oligomer has the reversible crosslinking characteristic and is suitable for high-end cosmetics and electronic packaging materials.

The present invention provides a composite silicon molecular sieve catalyst, a preparation method and application thereof. The preparation method comprises the following steps: S1, mixing an organosilicon compound, a quaternary ammonium template and water, and then sequentially performing a hydrolysis reaction, a distillation and a crystallization reaction to obtain a solid-liquid mixture; S2, adjusting the solid-liquid mixture to neutral or alkaline, and then filtering to obtain a filter cake and a filtrate; S3, performing a first roasting of the filter cake to obtain a roasted solid material; S4, mixing the roasted solid material with graphene oxide, an organic amine and a solvent, performing a composite modification treatment, and then performing solid-liquid separation to obtain a modified solid material and a liquid phase; S5, performing a second roasting of the modified solid material to obtain a composite silicon molecular sieve catalyst. The composite silicon molecular sieve catalyst prepared by the present invention can take into account high selectivity, long service life, low energy consumption and easy industrial production.

Organosilicon chemistry, polymer derived ceramic materials, and methods. Such materials and methods for making polysilocarb (SiOC) and Silicon Carbide (SiC) materials having 3-nines, 4-nines, 6-nines and greater purity. Processes and articles utilizing such high purity SiOC and SiC.

The invention relates to the technical field of foam control, in particular to a high-efficiency emulsion defoaming agent as well as a preparation method and application thereof. 2.3 to 3.5 parts of hydrophobic silicon dioxide; 57 to 66 parts of polyether; 13 to 18 parts of an emulsifier; 4.5 to 6 parts of a thickening agent; 0.7-1 part of a bactericide; 1-2 parts of a stabilizer; 220 to 265 parts of deionized water; wherein the organic silicon compound comprises high-hydroxyl silicone oil A and modified hydroxyl silicone oil B, the high-hydroxyl silicone oil A is relatively strong in hydrophilicity and can rapidly cover the foam surface and reduce the surface tension of foam so as to realize rapid defoaming, the modified hydroxyl silicone oil B with relatively strong hydrophobicity can effectively prolong the foam inhibition time, and the high-hydroxyl silicone oil A and the modified hydroxyl silicone oil B have a synergistic effect, so that the foam inhibition effect is improved. Excellent defoaming and foam inhibition effects are shown; the defoaming agent obtained in the invention has excellent defoaming and foam inhibition properties, and also has good high temperature resistance and shear resistance.

The invention provides a silica sol mildewproof agent, display equipment and a spraying method of a silica sol layer, and the silica sol mildewproof agent comprises the following components in percentage by weight: 5%-10% of silicon dioxide, 0.1%-1% of a silane coupling agent, 73%-90% of a diluent, 5%-15% of an organosilicon compound and 0.1%-1% of an antistatic agent; wherein the silicon dioxide is silicon dioxide particles, and the particle size of the silicon dioxide particles is not smaller than 10 nanometers and not larger than 100 nanometers. The silica sol mildew inhibitor provided by the invention can solve the technical problem of low mildew-proof precision of the existing mildew inhibitor.

The application provides a composite film, a packaging material containing the composite film, a packaging method and application thereof, and the composite film comprises a heat-seal anti-adhesion layer; the heat-seal anti-adhesion layer comprises an anti-adhesion material, an inorganic filler A, a polyolefin A and an ultra-high molecular weight polyethylene; and the anti-adhesion material comprises an organic silicon compound. The composite film effectively improves the anti-adhesion performance of the inner layer of the composite film to candies or other foods by designing a heat-seal anti-adhesion layer. The composite film has good tearing performance when used for packaging candies or other foods, and the candies or other foods remain intact without obvious damage after being torn open.

A hydrophilic composition that includes at least one of an organic silicon compound represented by formula (1), a condensate of an organic silicon compound represented by formula (1), and the product of reacting an organic silicon compound represented by formula (1) and metal oxide particles makes it possible to obtain a hydrophilic coating film that has excellent durability. (In the formula, the R1s each independently represent a hydrogen atom, a C1–10 alkyl group, or a C6–10 aryl group, the R2s each independently represent a C1–10 alkyl group or a C6–10 aryl group, X represents a hydrogen atom, a k-valent metal cation, or an ammonium cation, k is 1 or 2, provided that k is 1 when X is a hydrogen atom or an ammonium cation, m is an integer from 1 to 10, inclusive, and n is an integer from 1 to 3, inclusive.)

The present invention is an ultraviolet-curable silicone composition containing the following components (A)-(D). (A) an organopolysiloxane resin having, as constituent units, a unit represented by formula (1) below, an R1 3SiO1 / 2 unit, an R1 2SiO2 / 2 unit, and an SiO4 / 2unit, wherein 5% or more of the total number of monovalent organic groups bonded to silicon atoms are aryl groups; (B) an organic silicon compound having two or more hydrogen atoms bonded to the silicon atoms in one molecule and having an acryloyloxyalkyl group, a methacryloyloxyalkyl group, an acryloyloxyalkyloxy group, or a methacryloyloxyalkyloxy group bonded to a silicon atom; (C) a photoactive platinum complex catalyst; and (D) a photopolymerization initiator. As a result, the present invention provides an ultraviolet-curable silicone composition that can be cured by ultraviolet irradiation without requiring a heating step in the atmosphere, and that provides a cured product having good adhesive strength.

The present invention relates to a method for treating keratin fibers, in particular human hair, comprising the following steps: - Application of a pretreatment agent (V) to the keratin fibers, wherein the pretreatment agent contains (V-1) at least one reducing agent selected from the group consisting of dithioerythritol, dithiothreitol, acetylcysteine, dimercaptosuccinic acid, thioglycerol, thiolactic acid, sodium dithionite, zinc dithionite, potassium dithionite, formamidine sulfinic acid, 2-hydroxy-2-sulfinoacetic acid and salts thereof, and - Application of a post-treatment agent (N) to the keratin fibers, wherein the post-treatment agent (N) contains (N-1) at least one organic silicon compound from the group of silanes with one, two or three silicon atoms.

The application relates to the technical field of cables, and discloses an insulating power cable which is composed of three layers, from inside to outside, namely a conductor, an insulating layer and a sheath layer, wherein the sheath layer comprises the following components by weight: chlorinated polyethylene 60-70 parts, calcium carbonate 10-20 parts, glass fiber 6-10 parts, carbon black 1-3 parts, aluminum hydroxide 10-12 parts, organic silicon compound 2-10 parts, antioxidant 0.3-0.5 parts and lubricant 0.8-1.2 parts. Through the technical scheme, the problems of low mechanical strength and low insulation performance of the power cable in the related art are solved.

The process of coloring keratinous material comprising the use of an organosilicon compound, an effect pigment, and a sealing reagent VIProvided herein is a process for dyeing keratinous material, in particular human hair, comprising the following steps:Application of an agent (a) to the keratinous material, wherein the agent (a) comprises:(a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and(a2) at least one colorant compound comprising at least one substrate platelet-based pigment comprising a lamellar substrate pigment, andApplication of an agent (b) to the keratinous material, wherein the agent (b) comprises:(b1) at least one sealing reagent.

The present invention is an addition-curable liquid silicone rubber composition for airbags which comprises (A) a linear organopolysiloxane, (B) a three-dimensional net-like organopolysiloxane resin in powder form, (C) an organohydrogen polysiloxane that contains two or more hydrosilyl groups per molecule, (D) a silica fine powder that has a BET method specific surface area of not less than 50m2 / g, (E) a hydrosilylation reaction catalyst, (F) an organic silicon compound that contains an adhesiveness-imparting functional group, and (G) an expanded graphite powder that has a median diameter of 0.1-50 μm, wherein the content of the component (C) is such that the total of hydrosilyl groups in the composition is 1-10 moles per 1 mole of the total of silicon atom binding alkenyl groups in the composition. Thus, provided is an addition-curable liquid silicone rubber composition for airbags in which coating unevenness is unlikely to occur during coating, and which makes it possible to easily detect defective products.

The invention relates to a high-viscosity organic silicon emulsifier as well as a preparation method and application thereof, and relates to the technical field of organic silicon chemicals. A preparation method of a high-viscosity organosilicon emulsifier comprises the following steps: S1, hydrosilylation reaction: stirring and mixing low-hydrogen silicone oil, allyl polyether and a platinum catalyst, heating to a preset temperature, and fully reacting until the detected viscosity is 5000-10000 CP to obtain an intermediate product; wherein the ratio of the mole number of silicon-hydrogen bonds in the low-hydrogen silicone oil to the mole number of allyl double bonds in the allyl polyether is 1: (0.5-0.8); s2, cross-linking reaction: adding TMPTA / AMA or TMPME into the intermediate product, maintaining the preset temperature, stirring and mixing until the detected viscosity reaches 15000 CP or above, and cooling to obtain the organic silicon emulsifier. The organic silicon emulsifier can efficiently emulsify high-viscosity polysiloxane and can form a stable emulsion.