55results about How to "Short molecular chain" patented technology

The invention relates to a binder which comprises the following components according to weight percentage: 15 percent to 25 percent of chlorinated polyethylene, 15 percent to 25 percent of polyformaldehyde, 3 percent to 10 percent of rubber, 20 percent to 30 percent of petroleum wax, 15 percent to 25 percent of Brazil wax (palm wax), 1 percent to 5 percent of stearic acid and 1 percent to 5 percent of epoxidized soybean oil. In the forming technique of metal powder, the binder can improve the strength of blank, reduce the damage of the blank and improve the finished yield and the production efficiency.

In order to solve the problem that electrical properties of a lithium ion battery are influenced by insufficient dispersibility of the existing lithium ion battery cathode composite, the invention provides a lithium ion battery cathode composite. The lithium ion battery cathode composite comprises an active material, a first thickening agent, a second thickening agent and an adhesive, wherein lithium can be removed from or embedded into the active material; the first thickening agent is a non-ionic cellulose polymer, and the weight-average molecular weight of the first thickening agent is 0.1 to 300 thousand; the second thickening agent is sodium carboxymethyl cellulose or ammonium carboxymethyl cellulose, the weight-average molecular weight of the second thickening agent is 30 to 200 thousand, and the substitution degree is 0.6 to 1.5. Meanwhile, the invention also discloses a lithium ion battery cathode, a preparation method, and a lithium ion battery comprising the cathode. According to the lithium ion battery cathode composite, the dispersing effect of a cathode active material in slurry is improved, so that related electrical properties of the lithium ion battery are improved.

The invention discloses a novel environment-friendly and nutritional efficient clarias fuscus feed and aims to provide the novel environment-friendly and nutritional efficient type clarias fuscus feed which can effectively improve the feed utilization rate of clarias fuscus, reduce the disease damages to the clarias fuscus, improve the water quality and increase the benefits. The technical scheme is that the feed is formed by the following components in mass percentage: 20-25% of flour, 6-16% of rapeseed meal, 2-6% of meat meal, 10-25% of fish meal, 4-8% of peanut meal, 5% of corn protein powder, 22-30% of bean pulp, 1-2% of cuttlefish cream, 5% of DDGS (Distillers Dried Grains with Soluble) feed, 1-2% of fish oil, 2-4% of soybean lecithin oil, 1-2.0% of monocalcium phosphate, 0.2-0.5% of compound vitamin, 1-2% of compound mineral, 0.03-0.05% of mould-proof agent, 0.1% of choline chloride and 0.2-0.4% of phytase; and the sum of all the components is 100%. The novel environment-friendly and nutritional efficient clarias fuscus feed belongs to the technical field of fish feed.

The invention discloses a high-fluidity polycarbonate alloy and a preparation method thereof. The polycarbonate alloy is prepared through the step that low molecular weight fluoro polyolefin which has specific content and is within specific molecular weight is added in a polycarbonate combination composed of polycarbonate, styrene-butadiene copolymers, flexibilizer, flame retardant and other auxiliaries; on the condition that other properties such as flame retardance, a thermal property and a mechanical property of the material of the combination are not changed, the fluidity of the material can be greatly improved, when the production time is prolonged, the improvement of fluidity is more obvious, and the high-fluidity polycarbonate alloy is suitable for occasions high in use environment requirement.

The invention discloses intelligent surface-hydrophilicity-and-hydrophobicity-convertible fabric finishing liquid and a preparation method thereof. An effective component of the finishing liquid provided by the invention is a perfluoroalkyl azophenyl acrylate copolymer. Perfluoroalkyl azophenol is used as an initial raw material, and esterification reaction is performed on the perfluoroalkyl azophenol and acryloyl chloride, thus obtaining a perfluoroalkyl azophenyl-containing acrylate monomer; the perfluoroalkyl azophenyl-containing acrylate monomer, hydroxyethyl methylacrylate and butyl acrylate are polymerized through an emulsion, thus preparing a perfluoroalkyl azophenyl-containing acrylate copolymer emulsion. During emulsion polymerization, the use amount of an initiator is increased, so that an obtained copolymer is low in degree of polymerization, a copolymer molecular main chain is relatively short, and the degree of twisting of a molecular chain is small; therefore, the molecular isomerism capacity of lateral radical azophenyl is high, and conversion of surface hydrophilicity and hydrophobicity is facilitated. An intelligent water repellent finishing agent provided by the invention is mild in preparation reaction conditions, simple in preparation process and suitable for industrial production.

The invention discloses a method for synthesizing a ternary-copolymerized super-absorbent resin. The method comprises the following operating steps: weighing chitosan hydrochloride, itaconic acid and acrylic acid according to the mass ratio of (1-11): (2-10): (3-17); firstly, dissolving chitosan hydrochloride and itaconic acid, which are in the mass ratio, into distilled water, and transferring a mixed solution into a four-mouthed flask which is provided with a nitrogen gas conduit and a reflux condensation tube; heating to the temperature of 30-80 DEG C, then, adding a 1%-18% initiator, continuing to react for 1-6 hours under the protection of nitrogen gas, and dropwise adding acrylic acid which is in the mass ratio during reaction; mixing a reactant and ethanol, purifying and baking, thereby obtaining the ternary-copolymerized super-absorbent resin. According to the method disclosed by the invention, the process is simple, and the selected chitosan hydrochloride is a monomer, so that the problem of chitosan solubility is solved, and polymerization reaction can be carried out under neutral conditions; itaconic acid added during the synthesis of the product is a monomer, so that the water absorbency of the product is further improved, the highest absorption volume of deionized water is 1,000-1,100 times, the highest absorption volume of tap water is 300-400 times, and the highest absorption volume of normal saline is 100-120 times.

The invention provides additive-free coconut milk and a production method thereof. The coconut milk comprises, by weight percentage, 20-30% of coconut milk, 6-10% of coconut water, 15-20% of white granulated sugar and the balance purified water. The additive-free coconut milk and the production method thereof have the advantages that the produced coconut milk is fresh and refreshing in taste, short in molecular chain, free of emulsifier and preservatives, capable of keeping the original taste of coconut, high in nutritional value and extremely good in taste; the production method is simple in process, mild in condition and low in equipment requirement; the production process uses a physical method, pollution and additive adding are avoided, health and environment protection are achieved, energy conservation, consumption reduction and low cost are achieved, large-scale popularization can be performed easily, evident social benefits are achieved, and the high-quality coconut milk can be obtained.

The invention discloses an intelligent textile finishing agent with convertible surface hydrophilicity and hydrophobicity and a method for preparing the intelligent textile finishing agent. The intelligent textile finishing agent comprises effective components which are perfluoroalkyl group azobenzene acrylic ester copolymers. The method includes carrying out esterification reaction on perfluoroalkyl group azophenol and acryloyl chloride to obtain acrylic ester monomers with perfluoroalkyl group azobenzene; polymerizing the acrylic ester monomers, hydroxyethyl methacrylate and butyl acrylate by the aid of emulsion to obtain acrylic ester copolymer emulsion with the perfluoroalkyl group azobenzene. The perfluoroalkyl group azophenol is used as an initial raw material. The intelligent textile finishing agent and the method have the advantages that the usage of initiators is increased during emulsion polymerization, obtained copolymers are low in polymerization degree and have short molecular main chains, and molecular chains are low in twining degree, accordingly, side group azobenzene is high in molecular isomerism capacity, and the surface hydrophilicity and hydrophobicity can be advantageously converted; reaction conditions for preparing the intelligent textile finishing agent which is an intelligent water repellent finishing agent are mild, processes for preparing the intelligent textile finishing agent are simple and convenient, and accordingly the intelligent textile finishing agent and the method are suitable for industrial production.

The invention discloses a feed special for newly-hatched ducklings capable of achieving nutrient balance and low fatality rate. The feed is prepared from, by weight, 20-50 parts of silkworm chrysalis meal, 5-15 parts of rye bran, 8-16 parts of cottonseed cake, 10-18 parts of cornstalk powder, 10-20 parts of cabbage caterpillar dry powder, 5-12 parts of water hyacinth dry powder, 2-6 parts of rice flour, 2-7 parts of doederlein spikemoss herb, 1-2 parts of gravel, 0.1-0.6 part of yeast protein meal, 1-3 parts of fructooligosaccharide, 0.5-1.5 parts of choline chloride, 0.1-0.4 part of vitamin, 0.01-0.06 part of high-temperature-resisting phytase, 2-5 parts of granulesten oil, 1-2 parts of sodium carboxymethylcellulose and 2-7 parts of modified soya bean lecithin. The feed can meet the requirement of meat ducklings 5-20 days old for nutrients, digestive utilization ratio is high, nutrient balance is achieved, and fatality rate can be reduced.

The invention relates to a biomass nanocellulose/nano transition metal oxide porous material, and a preparation method and application thereof. Nano transition metal oxide is loaded on the surface of biomass nanocellulose through non-covalent interaction. The biomass nano cellulose/nano transition metal oxide porous material has both adsorption and catalysis functions, and can be used as a recyclable adsorption and degradation material; when being used as an adsorption catalytic degradation material, the porous material has the advantages of high adsorption catalytic degradation efficiency, environment friendliness, excellent regeneration capacity, easiness in separation, recyclability and no repeated pollution, and has a considerable application prospect.

The invention relates to the technical field of milk tea beverages, and provides a plant-based milk tea beverage and a preparation method aiming at the current situation that milk tea on the market ismilk-based milk tea and is lack of a full-plant-based milk tea beverage without animal milk fat. The beverage is prepared from the following components: a plant base material, a tea raw material, a coffee raw material, a stabilizer, a fat base material, an emulsifier, an antioxidant, nisin, an acidity regulator, a sweet component, nuts and the like; the plant base material is one or more of hulled rice or powder and coconut milk of cereal crop fruits; and the fat base material is one or more of coconut powder, coconut oil, medium-chain triglyceride and sunflower seed oil. The pursuit of current consumers for the health concept is met, compared with milk-based milk tea or milk-based milk tea containing plant materials on the market, the concept of whole-plant-based milk tea is achieved, and the consumption requirements for being healthier, more nutritional and unique in taste are met.

The invention relates to an electrochemiluminescence cleaning buffer suitable for a Backman full-automatic immunoassay analyzer, and the electrochemiluminescence cleaning buffer is used in combination with an Access immunoassay system and a specific Access immunity test reagent for diluting and cleaning a sample and providing buffer environment for the whole system, and has a strong practical value and prospect of industry.

The invention discloses an adhesive for a fiber board and a preparation method of the adhesive. The p-tert-butylcatechol is taken as a crosslinking agent to produce dimethylol urea and a urea resin molecule through connection, and a urea resin is synthesized through an acid-neutral-acid-neutral-acid process, so that the molecule of the adhesive is evenly increased, a benzene ring structure is introduced into the molecular structure, the resin curing crosslinking density and rigidity of the urea resin are improved, the capability of capturing free formaldehyde is improved, the bonding strength is very high, and the formaldehyde emission is very low. The adhesive has the advantages that the unconventional p-tert-butylcatechol is used to produce a quinone structure under the actions of a catalyst and an oxidizing agent, the acid-neutral-acid-neutral-acid process is used to gradually increase the molecular chain of the urea resin and finally form a network structure, the formed resin is low in molecular weight and high in reaction activity, the basic procedure is close to the conventional process, the process is simple, the operation is simple, and the existing equipment is not transformed.

The invention relates to engine oil-resistant low-pressure-change addition type liquid fluorosilicone rubber and a preparation method thereof. The engine oil-resistant low-pressure-change addition type liquid fluorosilicone rubber comprises the following components in parts by weight: 100 parts of fluorosilicone base rubber; 10 to 20 parts of fumed silica; 10-20 parts of precipitated white carbon black; 1-3 parts of hydroxyl fluorosilicone oil; 2 to 5 parts of trifluoropropyl methyl cyclosilazane; 0.1 to 0.3 part of divinyl tetramethyl disilazane; 1-3 parts of distilled water; 0.1 to 0.3 part of a heat-resistant additive; 1.3 to 2.9 parts of a cross-linking agent; 0.3 to 0.6 part of a platinum catalyst; and 0.05 to 0.2 part of an inhibitor. According to the preparation method, fluorosilicone treating agents such as low-molecular-weight hydroxyl fluorosilicone oil and trifluoropropyl methyl cyclosilazane are used, the fumed silica and the precipitated silica are compounded to achieve a synergistic effect, and the specific cross-linking agent and the preparation method are matched, so that the compression set of the addition type liquid fluorosilicone rubber is greatly reduced, and the service life of the addition type liquid fluorosilicone rubber is prolonged. Even if the lubricating oil is soaked in high-temperature engine oil for a long time, the system cannot be damaged, the lower deformation rate can still be kept, and the oil pressure change resistance is very excellent.

The invention provides a secondary battery, at least one of a positive pole piece, a negative pole piece and an electrolyte of the secondary battery comprises an additive with small molecular weight and short molecular chain segment, and the additive can be fully mixed with an active substance, a conductive agent and a binder in the positive pole piece and the negative pole piece. And the additive can be in full contact with each component in the positive electrode and the negative electrode and is immersed into internal pores of the pole piece. In addition, the additive has good compatibility with electrolyte components in the electrolyte, and can be easily dissolved in the electrolyte within the addition amount of the additive. The additive can form a film on the surfaces of positive and negative active substances, can effectively improve the composition of a solid electrolyte film on the surfaces of the positive and negative active substances, improves the content of polymer components in a solid interface film, improves the conduction of electrons and lithium ions in positive and negative pole pieces of the battery, and enhances the dynamics of lithium ions in the pole pieces. The internal resistance of the battery in the cycle process is prevented from increasing and the cycle life is prolonged.

The invention discloses a quick-drying carton adhesive which is made from raw materials in parts by weight as follows: 40-55 parts of modified starch, 50-66 parts of water, 0.15-0.25 part of nano sepiolite powder, 0.4-0.45 part of potassium permanganate, 0.18-0.25 part of vinyl acetate emulsion, 6.5-8 parts of vinyl acetate, 0.4-0.55 part of sodium hydroxide and 0.05-0.20 part of alum. The quick-drying carton adhesive has the advantages of better paper property, excellent flowability and low possibility of moisture absorption and saltpetering.

The invention discloses a quaternary ammonium salt type dendritic polythioether modified polymer microsphere. The preparation method comprises the following steps: under an ultraviolet light condition, with methoxy polyoxyethylene as a pore-foaming agent and alkyl dithiol, propargyl glycidyl ether and 1,7-octylene as raw materials, synthesizing epoxy microporous polymer spheres by using a sulfydryl-alkyne addition suspension polymerization method; and performing a reaction on the epoxy microporous polymer spheres with excessive organic amine containing unsaturated substituent groups to obtainunsaturated substituent group functionalized porous polymer spheres; then with cysteamine hydrochloride and glycidyl ether containing unsaturated groups as raw materials and methanol as a solvent modifying the surfaces of the epoxy polymer microspheres with dendritic polythioether by adopting multiple iterative reactions alternately performed by a sulfydryl-epoxy addition reaction catalyzed by analkaline compound and a sulfydryl-ene/alkyne addition reaction initiated by free radicals. The quaternary ammonium salt type dendritic polythioether modified porous polymer microsphere prepared by theinvention has bactericidal activity, and does not generate bubbles when being used as a bactericide.

The invention provides diamond wire cutting liquid for a solar silicon wafer as well as a preparation method and application of the diamond wire cutting liquid. The diamond wire cutting liquid for the solar silicon wafer comprises the following components in parts by mass: 10-30 parts of a wetting agent; 15-35 parts of a penetrant; 20-50 parts of a lubricant; 10-0 parts of a sodium-containing compound; and 40-60 parts of pure water. The invention further discloses a preparation method of the diamond wire cutting liquid for the solar silicon wafer. According to the diamond wire cutting liquid, silicon powder in cutting gaps in the cutting process of large-size solar silicon wafers with the size of 182-210 mm can be effectively removed through the combined action of the wetting agent and the penetrant of specific components and compounding of the lubricant, the cutting efficiency is improved, the cutting abnormal rate and the smudginess rate are reduced. The diamond wire cutting liquid has good industrial application prospects and popularization potential in the technical field of solar silicon wafer diamond wire cutting.

The invention relates to a synthetic method of a polyester chip for a low extraction membrane, which belongs to the technical field of polyester preparation, and comprises the following steps: 1) carrying out esterification reaction, 2) carrying out pre-polycondensation reaction; 3) carrying out final polycondensation reaction; (4) melting and kneading the PET original sheet obtained in the step (3) with phosphate, crown ether and a bisphenol alkene oxide at the melting temperature of 280 DEG C for 5 minutes; According to the invention, 25% KF/Al2O3 and nano antimony trioxide are adopted as a compounded catalyst, the addition amount of antimony trioxide can be reduced, and introduction of impurities is reduced. Compared with ethylene glycol antimony, antimony trioxide is added, due to the fact that monovalent and subsequent water removal is not needed, and the use cost is lower, so that the defects that ethylene glycol antimony is extremely prone to absorbing moisture, and after the package is unsealed, the package must be completely used up for one time can be overcome. In addition, during the pre-polycondensation stage, reaction materials are low in concentration and small in molecular chain, so that the vacuum degree is increased at a constant speed in the pre-polycondensation stage, and flooding caused by the fact that a large number of materials are brought out can be avoided.

The invention relates to an impact-resistant composite material used for powdery paint. The composite material includes an inorganic filler and a silane modifying agent. The mass of the silane modifying agent added is 10-20% of the total mass of the composite material. The inorganic filler has hydroxy, the particle size D50 is not more than 4 [mu]m, and the particle size D100 is less than 15 [mu]m. The silane modifying agent is a mixture of first silane and second silane in a mass ratio of 1.5-3:1. The first silane is one or more selected from epoxy silane, aminosilane, and vinyl silane, and the second silane is an alkyl oligomer. Through improving the formula and a preparing method of the composite material, impact resistance of the powdery paint is increased to 80 kg.cm or above, pencilhardness of the powdery paint is increased to 2 H, the leveling degree of the powdery paint is not less than 4, and adhesive force of the powdery paint is 0.

The invention relates to external energy oil capable of supplementing water, whitening the skin and eliminating and improving pimples and a preparation method of the external energy oil. The energy oil is prepared from the following raw materials in parts by volume: 27.2-41.4 parts of green bamboo essential oil, 5.2-8.4 parts of vetiver essential oil and/or dill essential oil, 11.6-18 parts of grapefruit essential oil and/or lemon essential oil, 6-9.6 parts of niaouli essential oil, 10.4-16.2 parts of chamomile essential oil, 10.8-16.8 parts of geranium essential oil, 4.4-7.2 parts of rose essential oil and 3.6-6 parts of jasmine essential oil. The preparation method is that raw materials are mixed evenly. The external energy oil fundamentally permeates into subcutaneous tissue and a blood system, the skin problems of skin hydropenia, dark and gloomy complexion and fine liens and scars are solved, and the body is physically and psychologically regulated to achieve the target of fast recovery. The external energy oil is safe, free of thrill and free of toxic or side effect, and can be used for a long period of time. The external energy oil capable of supplementing water, whitening the skin and eliminating and improving pimples and the preparation method of the external energy oil are provided.