31 results about "Dibutyltin diacetate" patented technology

The invention relates to a macromolecular bonding seal material, in particular to a single-component silicone seal gum for a solar component used in a solar optoelectronic conversion device and a method for manufacturing the same. The single-component silicone seal gum for the solar component comprises the following raw materials in portion by weight: 50 to 60 portions of hydroxyl terminated polydimethyl siloxane, 55 to 60 portions of calcium carbonate reinforcing agent, 0.5 to 1 portion of dibutyltin diacetate catalyst, 55 to 60 portions of methyl silane coupling agent, and 1 to 2 portions ofvinyl silane coupling agent. Tests show that when the single-component silicone seal gum, produced by adopting the components and the method, is used for producing seal materials of the solar components, the seal materials have good weather resistance, a the surface drying time kept within 6 to 8 minutes in general, meet needs for quick scale production of the large-scale solar components, and meet the use requirements of the solar components on other items such as electrical property and the like.

The invention discloses an attapulgite-based polymer material additive. The attapulgite-based polymer material additive is attapulgite which is chemically grafted with dibutyltin diacetate on the surface. The attapulgite-based polymer material additive can be obtained by enabling attapulgite to react with the dibutyltin diacetate in an organic solvent at 60-100 DEG C. The attapulgite-based polymermaterial additive can significantly improve the crusting property of polymer materials, has the macro performance of flame retardancy, reduces flue gas emission, reduces toxicity during combustion, increases carbon residual rate after combustion, and can be used for preparing flame-retardant polymer materials such as a halogen-free low-smoke flame-retardant cable material.

The invention discloses a composite modified asphalt. The composite modified asphalt is prepared from, by weight, 95 to 105 parts of asphalt, 2 to 9 parts of spodumene powder, 1 to 10 parts of boron carbide powder, 0.5 to 1.5 parts of 3-(isobutylene acyloxy)propyltrimethoxysilane, 0.1 to 1 part of dibutyltin diacetate, 1 to 5 parts of a fire retardant, and 0.2 to 0.9 part of a dispersant. The composite modified asphalt is capable of satisfying requirements on asphalt road using performance, possesses excellent heat mixing emission reduction effect, the release amount of glance coal in blendingprocess can be reduced effectively, construction environment can be improved, and excellent economical and social benefit is achieved.

The invention discloses a high-refractive-index organic silicon material for LED encapsulation. The organic silicon material is prepared from the following components in parts by weight: 20-30 parts of methyltrimethoxysilane, 20-30 parts of triethylchlorosilane, 3-6 parts of hexahydrophthalic anhydride, 5-10 parts of aluminium acetylacetonate, 0.5-5 parts of triphenyl phosphine, 1-3 parts of dibutyltin diacetate, 0.5-2.5 parts of cobalt caprylate, 1.5-3 parts of acryloyl siloxane, 1.5-3 parts of methacryloyl siloxane, 5-15 parts of vinyl-terminated poly-methyl-vinyl silicon oil, 0.5-2.5 parts of an antioxidant, 0.5-2.5 parts of ultraviolet absorber and 5-10 parts of nano-silicon dioxide, wherein the antioxidant is tris-(2,4-di-tert-butyl-pheny)-phosphite, and the ultraviolet absorber is a benzotriazole absorbent. According to the high-refractive-index organic silicon material, the refractive index, the ultraviolet resistance and other performances of the organic silicon LED encapsulation materials can be effectively optimized and reinforced by adding the nano-silicon dioxide, the antioxidant and the ultraviolet absorber, and the strength and cohesiveness of the organic silicon materials can be effectively strengthened while high refractive index and excellent high temperature resistance of the organic silicon materials can be maintained.

The invention provides composite modified asphalt which is prepared from the following raw materials in parts by weight: 100 parts of asphalt, 3-12 parts of epidote powder, 3-12 parts of rhyolite powder, 0.1-3 parts of stannite powder, 0.1-2 parts of gamma-aminopropyl triethoxysilane, 0.1-0.8 part of dibutyltin diacetate and 0-0.8 part of dispersing agent. According to the benefits of the composite modified asphalt, the composite modified asphalt has the efficacies of hot mixing and emission reduction while the asphalt pavement performance can be met, the release quantity of asphalt fume in the mixing process can be effectively reduced, the construction surrounding environment is improved, and the economic benefit and the social benefit are good.

The invention provides an electrochromism solution for a gridiron and an electrochromism method thereof. The solution comprises, by weight parts, 40-50 parts of chromic salt, 20-30 parts of cobalt sulfate, 10-20 parts of sodium sulphate, 15-25 parts of potassium sulfate, 15-30 parts of magnesium sulfate, 5-10 parts of sodium dodecyl sulfate, 5-10 parts of nano-sized aluminum nitride, 1-5 parts of sodium dodecylbenzene sulfonate, 1-5 parts of dibutyltin diacetate, 1-5 parts of complex agent, 1-5 parts of coordination agent, 1-5 parts of conducting salt, 1-5 parts of buffering agent, 1-5 parts of organic additives and 80-100 parts of deionized water. The chromic salt is adopted for the electrochromism solution, and the electrochromism solution is environmentally friendly and favorable for production workers' health, does not contain harmful metals such as lead, cadmium and mercury and is high in plating thickness, hardness and corrosion resistance.

The invention discloses a preparation method of alkenyl succinic anhydride. The preparation method comprises the following steps: carrying out a reaction on alpha-olefin, maleic anhydride and a catalyst at 140-240 DEG C under 0.3-0.5 Mpa for 5-10 h, and purifying the above obtained reaction product to obtain the alkenyl succinic anhydride, wherein the catalyst is selected from at least one of monobutyltin oxide, dibutyltin oxide, dibutyltin oxide chloride, dibutyltin dilaurate and dibutyltin diacetate, the particle size of the catalyst is 3-5 [mu]m, and the catalyst can be cyclically used. The alkenyl succinic anhydride is mainly used as a raw material for papermaking sizing agents. The preparation method has the advantages of simplicity, short reaction time and high efficiency.

The invention discloses thermally conductive and insulating room temperature curing silicone rubber. According to the invention, alpha, omega-Hydroxyl terminated polydimethylsiloxane is used as a matrix, tetramethoxysilane is used as a cross-linking agent, Al2O3 is used as a main thermal conductive filler, AlN and SiC are used as auxiliary thermal conductive fillers, ZnO, nano-TiO2, nano-SiO2 andnano-Al2O3 are used as anti-settling additives, hydroxy silicone oil with viscosity of 1000mPa-s is suitable to be used as base silicone oil; tetramethoxysilane is used as a cross-linking agent, and the suitable use amount is 6 parts; dibutyltin diacetate and dibutyltin diacetylacetonate can be used as a catalyst, and the suitable use amount of dibutyltin diacetate is 0.3 wt%. When the filling amount of the thermally conductive and insulating room temperature curing silicone rubber is 8 wt%, 0.8 wt%, 0.8 wt% and 0.5 wt% respectively, the anti-settling performance of the silicone rubber is excellent, thermal conductivity of the silicon rubber can be raised to some extent, and the mechanical properties and insulating property are little influenced. The phenyl silicone oil and the hydroxy silicone oil are mixed according to a certain ratio as the base silicone oil to study the heat resistance of a pure silicone rubber matrix.

The invention relates to a preparation method of a catalyst organotin acetate (DSDA) in sucralose production. The method comprises the following steps: directly reacting dibutyltin diacetate and dibutyltin oxide at a certain temperature to obtain organotin acetate (DSDA), and distilling the reacted material under reduced pressure to remove impurities, thereby obtaining the organotin acetate (DSDA)which can be used in sucralose esterification reaction. The method is simple and smooth in process, and can basically realize one-step implementation. And under the same equipment condition, the production efficiency is greatly improved. The problems of solvent volatilization and high energy consumption in the prior art are solved, and the solvent and steam consumption is reduced; and the environment is protected, the working intensity of field operators is greatly reduced, and the working environment is improved.

The invention discloses a weather-proofing sealant used for bottom of lens and a preparation method thereof. The weather-proofing sealant comprises the following components by parts: 380-420 parts ofmodified 107 glue, 50-62 parts of phenolic-modified C9 resin, 20-30 parts of phenyl maleimide-based silicone resin, 15-24 parts of methyltrimethoxysilane, 32 parts of gas-phase silica, 0.1-0.4 parts of dibutyltin diacetate, 0.3-0.6 parts of tetra-n-butyl titanate, and 10-14 parts of hydroxyl silicone oil. The weather-proofing sealant has the advantages of excellent weatherability, little smell, and good construction performance, is suitable for assembling and sealing various glass, and has good bonding property.

The invention discloses a catalyst for reaction of isocyanate and sulfydryl. The catalyst is prepared by reaction of mercaptosilane and dibutyltin diacetate, has quite high reaction activity for reaction of isocyanate and sulfydryl, is quite high in final conversion rate, solves the problem of reaction of isocyanate and sulfydryl, and provides more technical methods for introduction of sulfydryl-containing materials into polyurethane materials.

The invention discloses an ultraviolet-resistant organosilicon adhesive which comprises an original silicon adhesive layer and a functional layer. The functional layer comprises the following components in parts by weight: 50-70 parts of organosilicon adhesive, 30-50 parts of hydroxy polysiloxane, 3-5 parts of dibutyltin diacetate, 1.2-2 parts of composite stabilizer, 1-2 parts of lubricant, 5-30 parts of reinforcer, 0.02-0.05 part of pigment, 5-8 parts of toughener and 30-40 parts of ultraviolet absorbent. The ultraviolet absorbent is a chlorobenzotriazole ultraviolet absorbent. By improving the formula, the ultraviolet absorbent and organosilicon adhesive functional layer master batch are mixed and molten by heating, and drawn to form the organosilicon adhesive, thereby solving the problem that color in the organosilicon adhesive in the prior art influences the visual effect. Meanwhile, by the aid of the weather resistance of the organosilicon adhesive, the ultraviolet absorbent can not easily migrate, thereby greatly prolonging the timeliness of the ultraviolet-resistant function.

The invention discloses a trivalent chromium electroplating method of a cold-rolled sheet. Plating liquid is prepared from chromium sulfate with the density being 135-145 g/L, sodium sulfate with the density being 210-230 g/L, potassium sulfate with the density being 30-40 g/L, magnesium sulfate with the density being 20-30 g/L, boric acid with the density being 65-75 g/L, formic acid with the density being 0.1-0.3 mol/L, oxalic acid with the density being 0.2-0.4 mol/L, sodium citrate with the density being 0.3-0.5 mol/L, sodium dodecyl sulfate with the density being 0.001-0.002 mol/L, benzene sulfinic acid sodium salt with the density being 0.0015-0.0025 mol/L, gamma-methacryloxypropyltriethoxysilane with the density being 0.2-0.4 mol/L and dibutyltin diacetate with the density being 0.5-0.7 g/L. The electroplating technology includes the steps that a graphite anode is adopted, the work temperature is about 50-55 DEG C, the pH is 3.5-4.5, the current density is 22-24 A/dm<2>, the electroplating time is 60-90 min, and the rotating speed of a stirrer is 100-120 r/min.

The invention belongs to the field of research and development of novel materials, and particularly relates to a standard energy storage material as well as preparation and application thereof. The standard energy storage material is prepared from the following components in parts by weight: 10-50 parts of sodium sulfite, 5-20 parts of a hardening agent, 40-70 parts of crystal wax, 10-25 parts ofwater, 1-4 parts of a curing agent, 0.5-1.0 part of dibenzoyl peroxide and 0.5-1.0 part of dibutyltin diacetate. The standard energy storage material has the advantages of being suitable for phase change temperature, relatively large in heat conductivity coefficient and high in energy storage density.

The invention discloses a solvent-free polyurethane-acrylate floor material, comprising assemblys A and B, the raw material compositions of the assembly A comprise trimethylol propane, 2,2,4-trimethylhexamethylene diisocyanate, di(propylene glycol) methyl ether acetate, color paste, kaolin, talc powder, precipitated barium sulfate, N,N-dimethylcyclohexylamine, BYK-358N, BYK-066N and BYK-163; and the raw material compositions of the assembly B comprise acrylic resin, diethylene glycol and dibutyltin diacetate. The solvent-free polyurethane-acrylate floor material of the invention is green and friendly to environment, is applicable to various fields, is suitable for indoor and outdoor application, has high decorative property, good weather resistance, good wear resistance, good impact resistance, good hardness, good anti-slip property, good temperature-change resistance, and good adhesion even without a grounding primer, and can be combined with epoxy, cement, polyurethane and other foundations for use with high gloss.

The invention discloses a nano polyurethane epoxy anticorrosive terrace coating. The nano polyurethane epoxy anticorrosive terrace coating comprises a component A and a component B, and is prepared from the component A and the component B according to a weight ratio of 6:1; the component A comprises the following raw materials in parts by weight: 30-40 parts of tolylene-2,4-diisocyanate, 30-40 parts of 1,6-hexamethylene diisocyanate, 40-45 parts of nano polyoxypropylene triol, 20-30 parts of ethylene glycol monoethyl ether acetate, 1-5 parts of methyldiethanolamine, 10-20 parts of epoxy resin,50-75 parts of filler, 1-8 parts of color paste, 0.1-0.3 part of BYK-320, 0.1-0.5 part of BYK-052N, 0.2-0.6 part of BYK-161 and 0.2-0.5 part of BYK-R605; and the component B comprises the following raw materials in parts by weight: 40-50 parts of hydroxyl-containing organic silicon resin, 10-20 parts of polyether and 1-5 parts of dibutyltin diacetate. A terrace prepared by the coating has more excellent corrosion resistance and higher salt fog resistance, wear resistance and skid resistance, and also has relatively good weather resistance.

The invention relates to a production method of acidic silicone structural adhesive dedicated to large-plate glass. The acidic silicone structural adhesive comprises room-temperature vulcanized methylsilicone rubber, dimethicone, vapor-phase method silicon dioxide, a propyl crosslinking agent and dibutyltin diacetate according to the weight proportion, wherein the room-temperature vulcanized methylsilicone rubber is a supporting raw material, the vapor-phase method silicon dioxide is a filling raw material, the dimethicone is a plasticizer, and methyltriacetoxysilane and the dibutyltin diacetate are functional aids. The invention provides acidic structural adhesive by mainly aiming at the quality problems that the existing silicone adhesive for large-plate glass structure adhesion is low in weight loading capacity, is liable to change color after construction, and short in storage period, the internal part of a bottle is liable to thicken, and adhesive at the bottom of the bottle within the guarantee period is solidified. The acidic structural adhesive is suitable for structure adhesion of large-plate glass with various sizes, and the adhesive does not turn yellow permanently and avoids whitening after adhesive application. The storage life can reach 15 months, the bottom of the bottle does not have dry adhesive, the colloid is not thickened, and the acidic silicone structuraladhesive is ideal acidic silicone structural adhesive dedicated to the large-plate glass.

The invention belongs to the field of novel material research and development, and particularly relates to an efficient phase-change energy storage composite, and preparation and application thereof.The phase-change energy storage composite is prepared from the following components in parts by weight: 10-50 parts of sodium sulfite, 5-20 parts of a hardening agent, 40-70 parts of crystalline wax,10-25 parts of water, 1-4 parts of a curing agent; 0.5-1.0 part of dibenzoyl peroxide, and 0.5-1.0 part of dibutyltin diacetate. The phase-change energy storage composite has the advantages of suitable phase-change temperature, large thermal conductivity and high energy storage density.

Preparation of low-melting-point phase-change energy storage material. The invention belongs to the field of new material research and development, and particularly relates to a phase change energy storage material as well as preparation and application thereof. The phase change energy storage material is prepared from the following components in parts by weight: 10-50 parts of sodium sulfite; 5-20 parts of a hardening agent; 40-70 parts of crystalline wax; 10-25 parts of water; 1-4 parts of a curing agent; 0.5-1.0 part of dibenzoyl peroxide and 0.5-1.0 part of dibutyltin diacetate. The phasechange energy storage material has the advantages of being suitable for phase change temperature, relatively large in heat conductivity coefficient and high in energy storage density.