125results about How to "Abundant and easy to obtain" patented technology

The invention relates to a preparation method of water-soluble fluorescent calcium fluoride nanoparticle. The preparation method comprises the following steps of dissolving soluble calcium salt into deionized water, so as to form a solution A; dissolving soluble citrate salt and soluble amino acid into the deionized water, so as to form a solution B; dissolving soluble fluoride salt into the deionized water, so as to form a solution C; gradually dripping the solution B into the solution A, and stirring, so as to form a mixing solution D; gradually dripping the solution C into the mixing solution D, and stirring, so as to form a mixing solution E; reacting the mixing solution E in a sealed hydrothermal reactor, and cooling to room temperature, so as to obtain a reaction solution; alternatively centrifuging and washing precipitate after centrifuging of the reaction solution by the deionized water and absolute ethyl alcohol, re-dispersing into the deionized water, and adjusting the pH (potential of hydrogen) value to 8.0 to 10.0, so as to obtain the water-soluble fluorescent calcium fluoride nanoparticle. The preparation method has the advantages that the raw materials are poisonlessand green, the sources are rich, the obtaining is easy, the cost is low, and the synthesis technology is simple; the product quality is stable, the technology repeatability is good, the crystallizingdegree and stability of the particles are good, and the water-soluble fluorescent calcium fluoride nanoparticle can be applied into biological materials and coating materials.

The invention provides a preparation method of single component room temperature curing epoxy construction glue and belongs to the technical field of construction adhesive preparation. Epoxy resin and diluent are added in a reactor first and mixed evenly, then curing agent, accelerant, coupling agent and filler are sequentially added to be mixed, meanwhile, mixing time is controlled, and finally vacuum defoamation, discharge and canning are carried out to form the single component room temperature curing epoxy construction glue. The proportion of weight parts of the epoxy resin, the diluent, the curing agent, the accelerant, the coupling agent and the filler is as follows: 80-100 parts of the epoxy resin, 5-25 parts of the diluent, 10-20 parts of the curing agent, 3.0-5.0 parts of the coupling agent, 0.5-2.0 parts of the accelerant, and 1.0-8.0 parts of the filler. The preparation method of the single component room temperature curing epoxy construction glue has the advantages that raw materials are rich in source and low in price; formula is reasonable and process is simple, complicated devices and complicated operation are not needed; and produced products are convenient to construct, and waste can be avoided.

The invention relates to a dyeing and finishing process for preparing a silk fabric with a formaldehyde-removing function. The technical problem to be solved is to provide dyeing and finishing process for a silk fabric with a formaldehyde-removing function, wherein the process can provide the fabric with the function of removing formaldehyde effectively, and the fabric has abundant colors. The technical scheme is that the finishing process for a silk fabric with a formaldehyde-removing function comprises the following steps of: 1) finishing, wherein the using amount of a tea polyphenol formaldehyde-removing finishing agent is 5%-10% of the fabric weight; 2) complexing. The dyeing and finishing process for a silk fabric with a formaldehyde-removing function comprises the following steps of: 1) dyeing, wherein a proper amount of acid dyes are used, and the using amount of the tea polyphenol formaldehyde-removing finishing agent is 5%-10% of the fabric weight; 2) complexing. The dyeing and finishing process for a silk fabric with a formaldehyde-removing function comprises the following steps of: 1) dyeing, wherein a proper amount of active dyes are used, and the using amount of the tea polyphenol formaldehyde-removing finishing agent is 5%-10% of the fabric weight; 2) soaping; 3) complexing.

A preparing method for oil-based hydroxyapatite colloidal crystals comprises the steps that a soluble calcium saline solution is mixed with low alcohol, fatty acid and organic amine, and a uniform solution is obtained after stirring; under the stirring condition, soluble phosphoric acid saline is slowly dripped, the temperature is increased to 50-90 DEG C for a reaction for 3-24 h, the mixture is naturally cooled to the room temperature and centrifuged through a high-speed centrifugal machine, precipitate is obtained and subjected to centrifugal washed with absolute ethyl alcohol and a non-polar solvent alternately three times, electrolyte and redundant fatty acid in the system are removed, and oil-soluble hydroxyapatite nano-particles are obtained; the oil-soluble hydroxyapatite nano-particles are dispersed into the non-polar solvent with the particle concentration reaching 10-65% which exceeds the critical phase conversion concentration, and the oil-based hydroxyapatite colloidal crystals with intense birefringence are prepared. According to the preparing method, raw materials are rich in source and easy to obtain, cost is low, the synthesizing process is simple and easy to implement, and products are stable in quality and good in process repeatability and have good application prospects in biomedical composites and coating materials.

The invention discloses a current liquid-changing material of intercalation kaolin/modified titanium oxide nanometer composite particle, which is characterized by the following: adopting formamide intercalation kaolin micrometer particle as core of dispersing phase; making chromium ion modified titanium oxide nanometer particle as micrometer/nanometer nuclear shell structure particle of clad layer; improving TauE/eta0 value of current liquid-changing material and physical value excited by electric field; increasing sediment-proof property; displaying the relationship of cutting stress and electric field strength of different dispersing particle currents in the accompanying diagram.

The invention discloses lactobacillus plantarum P _ 17 and a method for preparing fermented apple juice by using the lactobacillus plantarum P _ 17. According to the method, apple juice is used as a raw material, and lactobacillus plantarum P _ 17 with the preservation number of CGMCC NO.19251 is used for fermentation, so that the product is prepared. The lactobacillus plantarum P _ 17 has outstanding acid resistance, sugar resistance and low temperature resistance, has strong pepsase resistance and acid resistance, can resist an artificial intestinal juice stress environment, and has bile salt resistance and high osmotic pressure resistance. The fermented apple juice is uniform and consistent in color and luster and uniform and fine in texture, and has unique aroma and apple aroma of fermentation. The viable count of the fermented apple juice prepared by the method is higher than that of other bacteria, and the gamma-aminobutyric acid, the total acid and the antioxidant value are obviously improved compared with those of common apple juice. The method is simple in production process and rich and easily available in raw materials, and has far-reaching significance in industrial production of the fruit and vegetable juice lactic acid fermented beverage.

The invention relates to a sol-gel method for preparing a lithium ferrous phosphate anode material based on ferric phosphate, which comprises the following steps: firstly, mixing the ferric phosphate with a lithium source compound according to a proportion; secondly, adding an organic complexant and a carbon source compound in the mixture, dissolving the mixture by adding water and stirring the mixture at a constant temperature to form a sol; thirdly, heating and drying the sol till a gel is formed; and after the gel is subjected to even mixing and full ball milling, presintering the gel in a tubular furnace at a certain temperature for a period of time under the protection of inert gas; and finally calcining the obtained product for certain time at a certain temperature under the protection of the inert gas to obtain the lithium ferrous phosphate anode material. The method uses the ferric phosphate as a raw material which has abundant source and is cheap and available, and greatly reduces the cost; and the sol-gel method allows reactants to realize the molecule-level mixing and greatly reduces the reaction temperature so as to reduce energy consumption and prepare the lithium ferrous phosphate anode material with excellent performance.

The present invention discloses one kind of medicine for treating rhinitis, and the medicine is prepared with centipeda herb 100-500 weight portions, rhubarb 50-300 weight portions, lily magnolia 50-300 weight portions, cocklebur fruit 50-300 weight portions, mint 50-300 weight portions and borneol 1-10 weight portions. The medicine has obvious systemic and local antiallergic effect and antiphlogistic effect, and is used in treating allergic rhinitis, chronic rhinitis, etc. It has fast acting, determined curative effect, high safety and less toxic side effect. The present invention also discloses the preparation process of the medicine.

The invention provides novel self-emulsifying water-based polyester emulsion and a preparation method thereof. The preparation method includes the following steps that itaconic acid, methyl-butanedioic acid-5-sodium sulfonate and 1,4-butanediol are subjected to condensation polymerization, then terminal hydroxyl water-based polyester-poly(itaconic acid butanediol-co-methyl-butanedioic acid-5-sodium sulfonate butanediol)ester (PBIINa) is obtained, and the PBIINa and terminal olefine acid are heated to 110-160 DEG C under nitrogen protection, and terminal olefine acid modified water-based polyester is obtained after an esterification reaction. The terminal olefine acid modified water-based polyester is dispersed in water, and then the water-based polyester emulsion is obtained. The preparation method of the water-based polyester emulsion is novel and has a self-emulsifying function, an emulsifying agent does not need to be added, organic solvent is not contained, and the water-based polyester emulsion can be used as emulsion coating and has broad market prospects. The steps are simple, operation is convenient, and practicability is high.

The invention relates to an oil-soluble hydroxyapatite nano-sheet preparation method, which comprises: adding 24 mL of a 2.08 mol/L soluble calcium salt aqueous solution, 48 mL of low-carbon alcohol, 0.0125-0.1 mol of fatty acid and 0.0125-0.2 mol of an organic amine to a three-necked flask, mixing, and stirring to obtain a uniform solution; under a stirring condition, slowly adding 24 mL of a soluble phosphate aqueous solution to the obtained solution in a dropwise manner, and continuously stirring for 10 min after completing the stirring; and heating to a temperature of 50-90 DEG C, carrying out a reaction for 3-24 h, naturally cooling to a room temperature, carrying out centrifugation separation by using a high-speed centrifuge to obtain a precipitate, carrying out alternating centrifugation washing three times with absolute alcohol and cyclohexane, and removing electrolytes and excess fatty acids from the system so as to obtain the oil-soluble hydroxyapatite nano-sheets. According to the present invention, the method has characteristics of rich and easily-available raw materials, low cost, simple synthesis process and easy performing, and the product has characteristics of stable quality, good process repeatability, good shape controllability, and good dispersion property.

The invention discloses an antistatic flame-retardant thermoplastic polyurethane elastomer which is prepared from the following components in parts by weight: 80 parts of TPU, 20 parts of LLDPE, 8 parts of C nano material, 12 parts of composite flame retardant, 4 parts of antimonous oxide, 5 parts of compatilizer, 0.3-0.4 part of lubricant, 0.5-0.7 part of dispersant, 0.2-0.4 part of flow prompting agent and 0.2 part of antioxidant. A preparation method of the antistatic flame-retardant thermoplastic polyurethane elastomer comprises the following steps: preparing the materials according to theformula; stirring in a stirrer, and mixing uniformly; finally, adding a parallel twin-screw extrusions pelletizer, and performing melt blending and extrusion to obtain a material strip; performing water cooling, blow drying in air and dicing to obtain a product. Through test, the flame retardance of the material can reach the current globally universal highest level UL94V-0 of flame retardance, the surface resistivity is 105Ohm/cm<2>, the tensile strength reaches 32.4MPa, the elongation reaches 426%, the hardness (Shore A) is 90A, all properties of the product meeting the customer needs.

The invention discloses a plant type washing-free hand sanitizer. The plant type washing-free hand sanitizer comprises the following components in percentage by mass of 0.4-0.9% of alkyl polyglycoside, 0.2-0.4% of a preservative, 0.1-0.2% of quaternary ammonium salt, 0.01-0.05% of essence, 0.02-0.08% of sodium citrate, 0.005-0.015% of citric acid, 0.5-1.0% of a hydrating agent, 0.5-1.0% of a plantextract and the balance water. The plant extracts are respectively a thyme extract, a purple perilla extract, a common lantana leaf extract and a railway beggarticks extract, and the mass ratio of the hydrating agent to the thyme extract to the purple perilla extract, to the common lantana leaf extract to the railway beggarticks extract is 5:2:1:1:1. The washing-free hand sanitizer can realize efficient long-acting sterilization, can restrain breeding of bacteria, can effectively protect skin safety, and has the effects of washing and moisturizing skin. The preparation method is simple, easyfor mass production and free from pollution in the preparation process.

The invention relates to self-repairing polyester based on multiple hydrogen bonds as well as a preparation method and application of the self-repairing polyester, and belongs to the field of polymerpreparation. The method comprises the following steps: grafting and introducing a UPy-NCO supramolecular polymer on a side chain of poly (butylene itaconate-co-butylene succinate) ester (PBIS) througha sulfydryl-alkene click reaction; meanwhile, grafting and introducing UPy-NCO (supramolecular polymer) into terminal hydroxyl of polyethylene glycol (PEG-2000), and then forming dimerization throughthe action of quadruple hydrogen bonds, so that a cross-linked network is obtained. The preparation method of the self-repairing polyester is novel, UPy-NCO is introduced to a side chain of poly (butylene itaconate-co-butylene succinate) ester (PBIS) by utilizing thiol-ene click reaction grafting, and the polyester with great self-repairing capability and mechanical strength is prepared. And thecost of the selected raw materials is low, and the market prospect is wide. The steps are simple, operation is convenient, and practicability is high.

The invention discloses a high-wave-transmission green zirconia ceramic, which is prepared from the following raw materials: yttrium-stabilized zirconia and a green colorant. The dosage of yttrium oxide in the yttrium-stabilized zirconium oxide is 3.5-5.5 mol% of that of zirconium oxide. The green colorant is composed of aluminum oxide, zinc oxide, nickel oxide, iron oxide, titanium oxide, cobaltoxide and manganese oxide according to the molar ratio of (16-60): (1.5-10): (0.8-25): (0.2-17): (0.05-10): (0.04-4): (0.04-0.4), and the addition amount of the green colorant is 2.0-7.0 wt% of the yttrium-stabilized zirconia. The ceramic is of a sandwich gradient composite structure, an upper layer and a lower layer are compact layers, and a middle layer is a porous layer. In addition, the invention also discloses a preparation method of the high-wave-transmission green zirconia ceramic and a prepared product. According to the invention, the adopted raw materials are green, environment-friendly and rich and easily available in source, and by optimizing the formula composition and structural design of the raw materials, the formed high-wave-transmission green zirconium oxide ceramic is excellent in dielectric property and excellent in color generation, and can well meet the market requirements and the strict use requirements in practical application.

The invention discloses a method for ultrasound-assisted synthesis of N-arylsulfonamide. N-arylsulfonamide compound is synthesized by series reaction of nitro reduction/sulfonyl chloride reduction/sulfonamidation with taking aromatic nitro compounds, sulfonyl chloride and iron powder as raw materials under ultrasonic stirring conditions. Water is used as a reaction medium and a hydrogen source inthe reaction. The method has the advantages of cheap and easily obtained raw materials, simple and mild reaction conditions, environmental friendliness, saving energy, high reaction selectivity and high yield, excellent compatibility of substrate functional groups and high application value.

The invention relates to a method for preparing a water soluble non-setting adhesive. The method comprises the following steps of: swelling the gelatin in normal-temperature water in a container, adding an additive, heating the mixture, stirring to allow the gelatin and the additive to dissolve in water completely, adding polyvinyl pyrrolidone, and continuing stirring till the polyvinyl pyrrolidone dissolves completely; and sealing the container at last, keeping the temperature in the container, dewatering the product in a vacuum dewatering device, cooling the product, discharging the product to be stored. The soluble non-setting adhesive is suitable to be used on paper trademarks or tags, has characteristics of common non-setting adhesive and can be torn off and adhere repeatedly. The non-setting adhesive can quickly and completely dissolve in water without leaving any traces on materials to be adhered.

The invention provides a preparation method and an application of a gel profile control oil-displacing agent. The preparation method comprises the following steps: mixing the following components by mass percent: 10% to 50% of cationic monomer, 5% to 20% of nonionic monomer, 0.01% to 0.1% of methylene bisacrylamide, 0.1% to 0.2% of ammonium persulfate and the balance of water, so as to prepare a solution; performing a polymerization reaction on the solution for 8 to 11 hours at the temperature of 60 DEG C to 90 DEG C so as to obtain the gel profile control oil-displacing agent. The preparation method is simple; the required synthetic materials are abundant in resource and easy to obtain. In addition, the prepared gel profile control oil-displacing agent has the advantages that the oil-displacing agent is small in particle diameter and can be split from sand grains and condensed with the sand grains to form gel groups under different pressure differences; the oil-displacing agent is more excellent in heat resistance and salt tolerance because an oil-displacing activator is fixed on the surface of each microsphere, and the like. Thus, the gel profile control oil-displacing agent can be favorably applied to the blocking and the oil displacement of rock layer cracks during the exploitation of oilfields of various types, and is low in cost and good in effect.

The invention belongs to the field of preparation of nano composite materials and environmental water pollution treatment, and discloses a preparation method and application of a CdIn2S4 nano particlemodified few-layer MoS2 nanosheet composite photocatalyst. In the method, MoS2 nano-blocks are ultrasonically stripped into few-layer MoS2 nanosheets, and then the CdIn2S4 nano particle modified few-layer MoS2 nanosheet composite photocatalyst is prepared by impregnation-hydrothermal method. The CdIn2S4/MoS2 nanocomposite photocatalyst is used to catalytically degrade 2-thiol benzothiazole or tetracycline hydrochloride under visible light. The preparation method has the advantages of rich and easy source of raw materials for preparation, simple operation process and short reaction period, andbelongs to green chemistry. CdIn2S4 nano particles are attached to the MoS2 ultra-thin nanosheets to synthesize a novel composite photocatalyst based on the MoS2 ultra-thin nanosheets. The hybrid heterojunction is constructed to accelerate the transfer rate of photogenerated carriers and increase the separation efficiency, thereby greatly increasing the activity of the photocatalyst. The CdIn2S4nano particle modified few-layer MoS2 nanosheet composite photocatalyst has significant application prospects in solving water pollution.

The invention discloses a wheat straw biochar fertilizer with a drought resistant function and a preparation method thereof. The wheat straw biochar fertilizer is prepared from the following raw materials by weight: 22-25 parts of peat, 8-10 parts of guar gum powder, 4-7 parts of calcium chloride, 13-17 parts of urea, 26-28 parts of banana peel powder, 40-45 parts of millet bran, 9-11 parts of monoammonium phosphate, 125-135 parts of fresh enteromorpha, 4-6 parts of composite microbial agent, 270-290 parts of wheat straw, 25-28 parts of fresh urine and a proper amount of water. The biochar fertilizer has easily available abundant raw material sources has comprehensive nutrients and can provide long-term nutrition support for crop growth; the added guar gum powder, peat and biochar from straw pyrolysis can absorb water through macrovoids contained therein, and loss of the absorbed water can be prevented due to the stickiness, and thereby the water is locked in a fertilizing layer; in addition requirements of crops for water and fertilizer are met, and the biochar fertilizer has a good application prospect in an arid region.