106results about How to "Low viscosity properties" patented technology

A lithium battery electrolyte comprises lithium salt, organic solvent and the chemical additive. The lithium salt is one of lithium per chlorate, trifluoromethyl lithium sulfonate, six lithium flu phosphate, six fluorine arsenic acids lithium, the tetrachloride aluminum lithium, in the tetrachloride boron lithium one kind or its combination thing, the density is 0.5-2.0mol/L; The organic solvent is alkyl phosphate RPO3R ' R ';The chemical additive is the (volume compares) two oxygen link fifth heavenly stem Alkane DOL whose density is density is 0-5% . This invention has good anti- burn performance, the electrolyte conductivity maximum value can reach 4.0mS-1 also but not to affect the reaction nature of plurity of insertion electrode, may be used in -50 degree C-120 degree C temperature ranges, also causes the cathode surface to form a high flexible SEI membrane, thus enhance the safety of lithium battery in the production, storage and transportation and reduce the production cost.

The present invention discloses a modified epoxy resin which exhibits excellent handleability in a solid state at ordinary temperatures and exerts an excellently low viscosity at a molding temperature; epoxy resin compositions which each comprise the modified epoxy resin and an inorganic filler and which can give cured articles exhibiting high thermal conductivity, low thermal expansion, and excellent heat resistance and moisture resistance; and cured epoxy resin articles made by using the compositions. The modified epoxy resin can be prepared by reacting a mixture of hydroquinone and 4, 4'-dihydroxybiphenyl at a weight ratio of 0.1 to 10.0 with epichlorohydrin, and is in a crystalline state at ordinary temperatures. The epoxy resin compositions each comprises (A) an epoxy resin component, (B) a curing agent, and (C) an inorganic filler as the main components, with the epoxy resin component (A) containing the modified epoxy resin in an amount of 50wt% or above.

The invention relates to a thermal interface material and a preparation method thereof. The thermal interface material is prepared from 30 to 70 percent by weight of spherical boron nitride, 20 to 50percent by weight of thermosetting resin, 5 to 10 percent of a curing agent, 1 to 5 percent of a coupling agent, and 1 to 10 percent of a diluting agent. The preparation method comprises the followingstep of uniformly stirring and mixing the spherical boron nitride, thermosetting resin, the curing agent, defoaming agent, coupling agent and diluting agent. The thermal interface material is obtained by virtue of curing of a baking oven. The spherical boron nitride is adopted to substitute flaky boron nitride, so that the filling amount of boron nitride in the thermosetting resin can be improved, and the heat conduction coefficient of the thermal interface material can be improved; and meanwhile, spherical boron nitride can reduce the viscosity of the composite material, and the operabilityof the thermal interface material can be improved. The method is simple, easy, and low in price of raw materials, and the prepared thermal interface material is relatively high in heat conductivity coefficient and can be widely applied to the field of heat dissipation of high-density electron devices.

The invention discloses a process based on the molten-salt growth method for metallizing the surface of a ceramic base composite material member, including the following steps: firstly, a molten salt mixed raw material is arranged in a fixed container; secondly, the ceramic base composite material member of which the surface is cleaned is embedded in the molten salt mixed raw material, temperature is raised to 800 to 1200 DEG C under inert atmosphere, and after the temperature is preserved for 1 to 5 hours the ceramic base composite material member is cooled to room temperature along with the furnace; and finally, the ceramic base composite material member is taken out, and the surface thereof is repeatedly cleaned and dried, thereby obtaining the ceramic base composite material member with the metallized surface. The technological process of the invention has the advantages of high preparation speed and efficiency, simple and easily executed operation and high bonding strength between an obtained metallized layer and the ceramic base composite material, thereby meeting the requirement on metallizing the ceramic base composite material member.

The invention relates to a thick mash alcohol fermentation process, in particular to a thick mash alcoholic fermentation process for mixing tapioca by using molasses hydrolyzate, which comprises the following steps of hydrolyzing the molasses; then mixing the tapioca with the molasses hydrolyzate and certain amount of water to ensure that the total amount of the tapioca pulp reaches 27.5 to 28.5(g/100mL), wherein the total sugar content of the molasses hydrolyzate is 10 to 20% of the total sugar of the tapioca; the concentration of the obtained fermented mash alcohol is higher than 15.0(v/v) after the procedures of liquefaction, sterilization, saccharification, fermentation and the like. In the invention, the molasses hydrolyzate with lower viscosity is mixed with the tapioca for pulping, which increases the initial sugar concentration to meet the requirement of thick mash fermentation, and keeps good fluidity in the gelatinization and fermentation processes of the pulp material; the invention can be used for continuous production of thick mash alcohol fermentation; the molasses hydrolyzate can be utilized by alcohol yeast at high efficiency; and the invention has the advantages of good fermentation effect and low production cost.

The invention discloses a preparation method of a polystyrene-acrylate core-shell composite emulsion, belongs to the emulsion preparation field, and solves the problems of adhesion resistance, poor heat resistance and the like of a thermoplastic polystyrene-acrylate random copolymer in the prior art. The preparation method is as follows: 1, weighing raw materials; 2, adding distilled water into a reactor, heating up, adding a compound emulsifier, a pH buffer and then part of a mixed vinyl monomer for emulsifying, adding part of an initiator, heating up to react until no reflux exists to obtain a seed emulsion; 3, continuing heating up, dripping off the rest of the mixed vinyl monomer, synchronously adding part of the initiator, after the dripping of the part of the initiator, keeping warm to obtain a core structure emulsion; 4, dripping a mixed acrylate monomer to the core structure emulsion, in the mixed monomer dripping process, adding part of the initiator, after dripping of the part of the initiator, adding the rest of the initiator, keeping warm, then cooling, adding ammonia water, stirring, further cooling, and filtering. The preparation method is applied in the fields of wood veneering, interior decoration, textiles and the like.

The invention relates to a benzoxazine-derived phosphorus bisphenol, an epoxy resin semi-cured substance and an epoxy resin cured substance thereof, and a manufacturing method thereof. The method comprises the following steps: reacting 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and benzoxazine derivatives to generate the phosphorus bisphenol compound; and further reacting the phosphorus bisphenol compound and epoxy resin to obtain the flame-resisting phosphorus epoxy resin semi-cured substance and epoxy resin cured substance.

The invention discloses vinyl alcohol series polymer. The vinyl alcohol series polymer consists of a core and vinyl alcohol series polymer arms which are connected to the core and has a core-arm star-shaped molecular structure, wherein the core comprises a polymeric polyfunctional crosslinking agent monomer or polyfunctional chain transfer agent; and the polyfunctional crosslinking agent monomer is a polymerizable monomer with two or more vinyl groups, and the polyfunctional chain transfer agent is a polythiol compound with three or more mercapto groups. The aqueous solution of the polymer has low viscosity characteristic, and the polymer has water resistance and has high cohesiveness to inorganic substances. The invention also provides a preparation method of the vinyl alcohol series polymer at the same time. The polymer of the invention can be applied to a coating for coating paper, and can be used as a sizing agent in the paper or on the surface of the paper, interior and exterior wall coatings for buildings or an adhesive in packaging or textile industries.

The invention discloses a preparation method of an epoxy anticorrosive coating. The preparation method comprises the following steps: (1) weighing the following components respectively in percentage by weight: 15-23% of deionized water, 30-40% of bisphenol A epoxy resin, 8-15% of phenolic amine, 5-10% of organic silicon, 5-10% of polyurethane, 10-18% of nitrile-butadiene rubber, 0.5-0.9% of a dispersant, 0.4-0.8% of a defoaming agent and 0.4-0.8% of a preservative, and dispersing and stirring to obtain a mixture; (2) weighing 10-17% of flaky highly-wear-resistant color filler and 0.2-0.5% of a leveling agent to be added into the mixture, and dispersing for 10-15 minutes in a dispersion tank at a rotation speed of 1000-1500r/min. By adopting the preparation method disclosed by the invention, the epoxy anticorrosive coating with good anticorrosive performance, good impact resistance, good toughness and good high-temperature resistance can be prepared, and the process is simple.

The invention relates to the technical field of building coatings, in particular to an ultraviolet curing coating which is widely used for building decorative boards such as coating boards, wall-surface decorative boards, cement fiberboards and the like. The ultraviolet curing coating comprises the following components in part by weight: 20 to 90 parts of ultraviolet curing resin, 3 to 40 parts of active diluent, 5 to 20 parts of active amine and 3 to 10 parts of photoinitiator. Due to the adoption of the technical scheme, after the coating is subjected to film forming and cured, film layers do not contain acrylate monomers with poor wear-resisting property, and therefore have high wear resistance, rigidity and adhesion; simultaneously, the varieties and using amount of the active diluent are adjusted reasonably so as to avoid the phenomena that the surfaces of cured paint films are rough, bubbles, needle eyes, shrinkage cavities, poor levelling exist on the surfaces and the like in the prior art.

The invention relates to a method for 3D printing of an aluminum oxide ceramic complex structure and discloses a method for 3D printing of a high-solid-content low-temperature co-fired aluminum oxide ceramic complex structure. The invention aims to solve the problems that the pH value of existing high-solid-phase-content aluminum oxide ceramic slurry needs to be adjusted, the prepared slurry is poor in stability and difficult to store for a long time, and high-speed and high-precision direct-writing type 3D printing is difficult to achieve. The method comprises the following steps: 1, weighing; 2, preparation of an organic colloid; 3, mixing of alumina powder and ceramic glass powder; 4, preparation of slurry; 5, heating for 3D printing; and 6, drying, glue discharging and sintering. The method is used for 3D printing of the high-solid-content low-temperature co-fired aluminum oxide ceramic complex structure.

The present invention provides a novel naphthol resin and a naphthol type epoxy resin. These resins are capable of keeping an excellent forming property and a high filling property because of low viscosity and good solidifying reactivity. Solidified products of the resins are obtained by solidifying an epoxy resin composition, has characteristics of excellent fire resistance, high adhesive bonding property, good moisture-proof property and excellent heat resisting property, and has functions of lamination, forming, cast molding, adhesive bonding and the like. The naphthol resin is representedby the following general formula (1) and the epoxy resin is obtained by performing a process of epoxidation of the naphthol resin, and the present invention is characterized in that in the general formula (1), the n=1 part is 50 wt% of the whole part, displacement position of the crosslinked radical of a 1-naphthol framework in the n=1 part is 4 which is of the position of 4', the content of the isomer of 4' is between 20wt% and 60wt%, and the total content of the isomer of 4', 2 and 2' is between 40wt% and 80wt%.[the chemical formula 1].

The invention discloses an epoxy anticorrosive antibacterial paint which is composed of 30-40% of bisphenol A epoxy resin, 8-15% of phenol formaldehyde amine, 5-10% of antimicrobial modified resin and nano silicon solution in a weight ratio of 30:1, 5-10% of polyurethane, 10-18% of butadiene-acrylonitrile rubber, 10-17% of flaky high-wear-resistance pigment and filler, 0.5-0.9% of dispersing agent, 0.4-0.8% of defoaming agent, 0.4-0.8% of preservative, 0.2-0.5% of leveling agent and 15-23% of deionized water. The epoxy anticorrosive antibacterial paint has the advantages of favorable corrosion resistance, favorable impact resistance, favorable toughness and favorable mold resistance.

The present invention is concerned with the use of polymeric additives for paraffin-containing fluids as pour point depressants and low temperature flow improvers, wherein the polymers comprise styrene and maleic acid dialkyl ester building blocks.

The invention discloses an OLED terminal protective adhesive capable of being quickly cured by an UV LED. The OLED terminal protective adhesive is prepared by mixing the following components in partsby weight: 20-40 parts of sulfydryl-functionalized hyperbranched polythioether, 20 to 50 parts of acrylic acid esterification liquid rubber, 10 to 50 parts of a reactive diluent, 0.1 to 8 parts of a photoinitiator and 0.5 to 5 parts of an auxiliary agent. The sulfydryl-functionalized hyperbranched polythioether is synthesized by a method of A2+BX. According to a formula in the invention, the sulfydryl-functionalized hyperbranched polythioether is used as a protective adhesive of key resin, and the OLED terminal protective adhesive has excellent curing speed, storage stability, colloid strength, water absorption, adhesive force, reliability and the like and is an OLED terminal protective adhesive material which has excellent properties and can be rapidly cured by the UV LED.