113results about How to "Help dissolve" patented technology

The invention relates to a polymer mobility control agent suitable for an ultrahigh-salinity oil deposit and a preparation method thereof, and the polymer mobility control agent is mainly used for solving the problem that a polymer can not meet the requirement for tertiary oil recovery due to poor temperature resistant property, salt resistant property and shearing resistant property in the prior art. In order to better solve the problem, the technical scheme adopted by the invention is as follows: the control agent for an amphoteric hydrophobic associated polymer comprises the following components in parts by weight of the amphoteric hydrophobic associated polymer: 5-99.9 parts of nonionic water-soluble monomers, 0-50 parts of anionic monomers or / and cationic monomers, 0.1-10 parts of hydrophobic monomers with surface activity, 0.1-5 parts of inorganic substances and 1-20 parts of surface active agents. The preparation method disclosed by the invention can be used for the industrial production of the polymer mobility control agent suitable for the ultrahigh-salinity oil deposit.

The invention discloses a method for producing microalgal oil by using flue gas, wherein the method includes the steps: (1) adding a microalgae culture medium and a scenedesmus obliquus FSH-Y2 seed liquid into a photobioreactor, regulating the pH of the culture system to 10-12, introducing flue gas with the CO2 volume content of 1 v%-5 v%, and culturing for 2-5 days; and (2) regulating the pH value of the culture system to 8-10, inoculating with monoraphidium sp. SS-B1 and ankistrodesmus sp. SS-B7 seed liquids, carrying out mixed culture, introducing flue gas with the CO2 volume content of 5 v%-45 v%, culturing to a stable stage under continuous illumination, and harvesting microalgae cells, wherein the scenedesmus obliquus FSH-Y2, the monoraphidium sp. SS-B1 and the ankistrodesmus sp. SS-B7 are respectively preserved in China General Microbiological Culture Collection Center on September 11, 2012 and on April 15, 2013 respectively and have the preservation numbers of CGMCC No.6551, CGMCC No.7479 and CGMCC No.7478 respectively. The method improves the tolerance and the solubility of the microalgae culture system on high-concentration CO2, improves the carbon sequestration efficiency, obviously increases the yield of the microalgal oil, and can realize purification of the flue gas.

The invention relates to a natural antibacterial mould proofing detergent without petrochemical components. The detergent which is produced by organically combining petrochemical component-free natural plant extract, petrochemical component-free natural mineral extract and existing products processed by modern biological technologies has high safety to human bodies and the environment, is environment-friendly, is capable of efficiently resisting bacteria and mildew, has strong broad-spectrum antibacterial and mould proofing performances, especially has excellent antibacterial performance for drug resistant germs, can remove heavy metals such as lead, and AOX (adsorbable organic halide) attached to clothes and skin, and has good vegetal washing effect especially for the fabric dyed with natural dyes, and the fabric dyed with natural dyes does not fade or change color after being washed with the detergent. The natural antibacterial mould proofing detergent does not contain oxidant or fluorescent brightener, is nonirritant to the skin, is applicable to washing the fabric and clothes of children, can be used for washing tableware and vegetables, can be used as liquid soap, liquid shampoo, bath foam and the like, is environment-friendly, safe and hygienical, and is a multifunctional washing product.

The invention discloses a compound heavy metal adsorbent. The compound soil heavy metal adsorbent comprises a floating core and a compound high molecule coating the floating core, wherein the mass ratio of the floating core to the compound high molecule is (1-5):1; the compound high molecule comprises a first polymer and a second polymer of which the mass ratio is (5:1)-(1:5); the first polymer is alginic acid or calcium alginate; the second polymer is modified chitosan; a modification group of the modified chitosan is small molecule chelator; the small molecule chelator has a carboxyl group and at least two chelation groups; the amino group ratio of the small molecule chelator substituted chitosan is above 30%; and the remaining amino groups in the chitosan and hydroxyl groups of the first polymer are crosslinked through dialdehyde molecules. According to the invention, the soil heavy metal adsorbent is prepared by compounding the modified chitosan modified with the small molecule chelator with the alginic acid / calcium alginate and the floating core, thereby improving the adsorbability of the soil heavy metal adsorbent.

The invention provides a method for purifying gibberellin GA3 and preparing water-soluble pulvis of gibberellin GA3. The invention brings forward control of purity and particle size of gibberellin GA3 and utilization of complex formulation to prepare water-soluble pulvis of gibberellin GA3. According to the invention, a mixed solvent of tetrahydrofuran / ethyl acetate / water is used for recrystallization of a crude product of gibberellin GA3, which enables a reasonable process and simple operation and enables purity of the product in one operation to be more than 98.5% and yield of the product to be more than 90%; the technology of complex formulation is employed and gibberellin GA3 is made to be rapidly dissolved in a water phase and to form a stable disperse phase through using of accessories like an acidic buffer reagent, a dispersant and a surfactant, thereby enabling gibberellin GA3 to be easier to store and transport and more convenient to use and drug effects and the utilization rate to be improved.

The present invention discloses a smooth and elastic finishing agent for nylon-cotton fabrics, and a preparation method thereof. The smooth and elastic finishing agent for nylon-cotton fabrics is prepared by the following components in weight percentage: 30-45% of modified terpolymer block silicone oil, 10-20% of isomeric fatty alcohol-polyoxyethylene ether, 0.05-2.5% of glacial acetic acid and 35-55% of water. According to the technical scheme of the invention, the synthesis of end epoxy silicone oil is conducted according to the alkali process route, so that the generation of a large amount of solid waste residues is avoided. Meanwhile, the method is simple in process, and the end epoxy silicone oil can be obtained in one step. Moreover, an obtained product is better in sliding feeling and delicate feeling compared with products obtained through the conventional acid method.

The present invention relates to cooling compositions comprising a cooling agent (preferably menthyl lactate) together with an ester derivative (preferably tri-ethyl citrate). Such compositions deliver immediate and long lasting freshness sensation, while maintaining or even improving skin and / or mucosal membrane health to which they are contacted and deodorizing said skin and / or mucosal membrane.

An environment friendly industrial oil stain cleaning agent is prepared from, by weight, 3.5 parts of sodium carbonate, 7.6 parts of ethylene diamine tetraacetic acid, 3 parts of sodium citrate, 7.5 parts of sodium alcohol ether sulphate, 4 parts of amine oxide, 1.4 parts of polyquaternium, 2 parts of sodium dodecylbenzenesulfonate, 3.6 parts of isopropyl alcohol, 3.4 parts of polyethyleneglycol, 2.4 parts of corrosion inhibitor, 1.5 parts of foam suppersor and 60 parts of water. The cleaning agent of the invention has high oil removal efficiency, free of ions of such heavy metals as manganese and chromium, chloridion, phosphorus and other toxic and harmful components. It is biodegradable, has no pollution to the environment and will not produce toxic or harmful gas during utilization. It will not cause human injury or environmental pollution. The corrosion rate caused by the cleaning agent to devices is very low, thus prolong the service life of devices.

The invention relates to emulsifiable paste with inflammation diminishing, itching relieving and antibacterial effects and a preparation method thereof. The emulsifiable paste with the inflammation diminishing, itching relieving and antibacterial effects is prepared from the following components in parts by weight: 1.0 to 5.0 percent of menthol, 5.0 to 10.0 percent of camphor, 1.0 to 5.0 percent of methyl salicylate, 0.5 to 1.0 percent of borneol, 0.1 to 0.5 percent of thymol crystals, 0.01 to 0.05 percent of beclomethasone, 6.0 to 10.0 percent of an emulsifier Gelot 64, 3.0 to 6.0 percent ofoctadecanol, 4.0 to 7.0 percent of monoglyceride and the balance of purified water. The emulsifiable paste of the formula is low in irritation to the skin, is not oily and has the characteristics of easiness in cleaning, high stability of effective components and relatively long preservation time; according to the manufacturing method disclosed by the invention, a homogenous phase body is formed by the emulsifier Gelot 64, the octadecanol, the monoglyceride and the water, so that the process is simplified; the emulsifiable paste further has the advantages of higher stability of the effective components and longer validity period.

The invention discloses a preparation method of navel orange peel essential oil microcapsules. The method comprises the following steps: (1) preparing beta-cyclodextrin water solution, dissolving beta-cyclodextrin into water to obtain the beta-cyclodextrin water solution; (2) preparing a navel orange peel essential oil solution, dissolving navel orange peel essential oil into an organic solvent to obtain the navel orange peel essential oil solution; (3) preparing the navel orange peel essential oil microcapsules: dropwise adding the navel orange peel essential oil solution obtained in the step (2) into the beta-cyclodextrin water solution obtained in the step (1), heating the mixed solution, and embedding under the conditions of keeping out of the sun and sealing; after a reaction is completed, putting reaction liquid into a refrigerator for refrigerating, carrying out vacuum filtration and drying to constant weight so as to obtain the navel orange peel essential oil microcapsules. The preparation method of the navel orange peel essential oil microcapsules has the advantages of being good in embedding effect, high in stability, good in economy, and the like.

The invention discloses a hand sanitizer and a preparation method, and belongs to the technical field of daily chemical products. The hand sanitizer is prepared from the following raw material components in parts by mass: 45 to 50 parts of lanolin glycerol, 8 to 15 parts of surfactant, 5 to 10 parts of ethanol, 3 to 8 parts of vitamins, 5 to 8 parts of essential oil, and 3 to 5 parts of pearl powder, the balance of deionized water, citric acid, a co-surfactant and an emulsifier. The preparation method comprises the steps that: the lanolin glycerol, the surfactant, the co-surfactant, vitamins,pearl powder, deionized water and emulsifier are weighed, after stirring, mixing and heating, ethanol and essential oil are added, and the mixture is stirred until the mixture is evenly mixed, finally, the pH is adjusted to weak acidity, and package is sealed to obtain a final product. The product can not only achieve a purpose of effective decontamination, but also is easy to wash in a short time, maintains the hand's skin in a comfortable, fresh state, and has an excellent skin care effect.

The invention discloses a method for detecting impurity components in alpha-alumina, which belongs to the glass manufacturing field, and sequentially comprises the following steps that: an alumina sample is weighed and is placed into a NO. 1 digestion tank and a NO .2 digestion tank, and then a digestion agent is added into the NO. 1 and the NO. 2 digestion tanks; a sample blank experiment is done for a NO. 3 digestion tank, a NO. 4 digestion tank, a NO. 5 digestion tank and a NO. 6 digestion tank; digestion is simultaneously carried out in each digestion tank; the digestion tanks are heated so as to remove partial acid; the NO. 1, the NO. 2 and the NO. 3 digestion tanks are transferred into a volume bottle to so as to fix the volume; the NO 4, the NO. 5 and the NO. 6 digestion tanks are transferred into a volume bottle, standard solution Y with appropriate quantity is respectively added into the NO. 4 digestion tank to be used as an inner calibrated standard solution; detected element standard solution with appropriate concentration is added into NO. 5 and NO. 6 digestion tanks to fix the volume; and the contents of impurity components of the alumina are measured through an internal standard method by placing the mixed solution on inductively coupled plasma (ICP). The method has the advantages that the analysis process is simple, the electric power cost is low, a crucible is difficult to damage, samples can be completely dissolved, the components are difficult to lose, and the matrix interference is low.

The invention provides cooking liquor which contains ammonium sulfite, urea and anthraquinone or derivatives thereof, wherein the ammonium sulfite accounts for 15-25wt% of absolute dry cotton stalk bark; the urea accounts for 3-8wt% of the absolute dry cotton stalk bark; the anthraquinone or the derivatives thereof accounts / account for 0.01-1wt% of the absolute dry cotton stalk bark; and the pH value of the cooking liquor is 7-8, and the liquor ratio is 1:(3-5). The invention further provides a method for preparing a cotton stalk bark pulp by adopting the cooking liquor, and the method comprises the following process steps: pretreatment, cooking, bleaching, alkaline extraction, concentration and pulping, wherein the process steps are sequentially performed on the cotton stalk bark. The neutral ammonium sulfite is adopted in the cooking liquor, and the cooking liquor simultaneously contains the urea and the anthraquinone or the derivatives thereof, thereby effectively ensuring the extraction rate of the cotton stalk bark pulp; and the cooking waste liquor can be used as a fertilizer, and a mixture of hydrogen peroxide, molybdate and triethylene pentaacetic acid is adopted during bleaching, thereby being very environmentally-friendly. By adopting the preparation method provided by the invention, the cotton stalk bark pulp which has the advantages of high content of cellulose, good whiteness and lower content of pentaose, ash and other impurities can be obtained.

The invention provides a direct injection molding chemical micro-foaming polypropylene composite material and a preparation method thereof. The composite material is prepared by the steps of mixing a polypropylene composite material and a sodium bicarbonate foaming agent according to a certain compounding ratio and performing injection molding and forming by twice-open molding technique, wherein the polypropylene composite material is prepared from the following components in parts by weight: copolymerized polypropylene (PP) 55-65 parts, high density polyethylene (HDPE) 10-20 parts, ultra-high molecular weight polyethylene (UHMWPE) 5-10 parts, talc powder 15-20 parts, an antioxidant 0.2-0.4 parts, a lubricant 0.5-1 parts, a light stabilizer 0.5-1 parts, and other assistant 0-1 parts. Through a proper compounding ratio of PP, HDPE and UHMWPE, the molecular weights in the composite system are reasonably distributed, the molecular chains are entwisted with each other, the chain segments of different molecular weights are disorderly entwisted to form a three-dimensional reticular network structure and achieve excellent compatibility, thereby improving the molten mass strength of linear polypropylene and obtaining the micro-foaming material with small and fine pores. The composite material provided by the invention has low cost and excellent mechanical properties, is convenient in operation, achieves good weight reduction effect, effectively reduces the weight of workpieces, and realizes light weight of parts.

The invention relates to the field of chemical synthesis, in particular to a novel synthesis process for active pharmaceutical ingredients of a PPI (proton pump inhibitor), and especially relates to a preparation method of esomeprazole magnesium. According to the method, 5-methoxy-2-mercaptobenzimidazole and 2-chloromethyl-3,5-dimethyl-4-methoxy pyridine hydrochloride are taken as the starting raw materials and subjected to condensation, asymmetric oxidation and salifying to prepare esomeprazole magnesium, a wet product is refined with water and methanol, an intermediate does not require crystallization, filtering and drying, the operation steps are simplified, the production cycle is shortened, material loss and energy consumption in a processing process are reduced, the yield is improved, and good economic benefits and social benefits are realized. The preparation method is good in repeatability and simple to operate, improves the yield and purity of esomeprazole magnesium and facilitates industrial production.

The invention relates to a preparation method of an ethyecellulose-based macromonomer. The preparation method comprises the following steps of: step one, dissolving ethyecellulose in an organic solvent and carrying out ultrasonic wave activation treatment under a low-temperature condition; step two, adding a catalyst and a polymerization inhibitor for carrying out further low-temperature activation, introducing nitrogen for removing oxygen; and step three, dropwise adding acryloyl chloride or methacryloylchloride to the solvent under a low-temperature condition, reacting for 1-4 hours at a low temperature, and heating to room temperature and reacting for 12-48 hours; and then dropwise adding the solution to water, precipitating, filtering, washing with water and carrying out freeze drying to obtain the ethyecellulose-based macromonomer. The ethyecellulose-based macromonomer can be used for carrying out free radial polymerization reaction and has very good application prospects in the fields such as coating, gel, plastics and medicines.

The invention discloses a heat treatment process for die steel. The heat treatment process is characterized in that the die steel is a 7CrSiMnMoV material which contains, by mass, 0.65 to 0.75% of C, 0.85 to 1.15% of Si, 0.65 to 1.05% of Mn, 0.90 to 1.20% of Cr, 0.20 to 0.50% of Mo, 0.15 to 0.30% of V, no more than 0.030% of P and no more than 0.030% of S, with the balance being Fe; and the heat treatment process comprises the following steps: (1) complete annealing; (2) under annealing; (3) quenching; and (4) tempering. The heat treatment process for the die steel can improve the structure stability of the die steel and comprehensive performance like hardness, wear resistance and toughness of the die steel.

The invention provides a super-branched chain reverse osmosis scale inhibitor with a net structure. The super-branched chain reverse osmosis scale inhibitor is characterized by being prepared from substances containing the following components: the mass ratio of an acrylic acid-2-acrylamido-2-methylpropane sulfonic acid copolymer to a mixture of polyamino polyether methylene phosphonate and organic phosphine derivatives to tricarboxylic acid is (2-2.5):1:(0.5-1); the mass of water is 1-1.5 times as much as the sum of masses of the acrylic acid-2-acrylamido-2-methylpropane sulfonic acid copolymer, the mixture of polyamino polyether methylene phosphonate and organic phosphine derivatives and tricarboxylic acid; the mass of a crosslinking agent is 0.5-1% of the mass of the water; and the concentration of an organic acid catalyst in the water is 0.5-1 mol / L. A scale inhibitor is capable of effectively preventing carbonate, sulfate, metal oxide and silicon dioxide from blocking a reverse osmosis membrane and effectively realizing sterilization.

The invention discloses a special Chinese honey locust liquid soap used in a clinical laboratory and the preparation method thereof. The liquid soap comprises functional components, organic acid, a hard water resisting agent, a pure plant spice, a thickening agent and deionized water. The functional components are a Chinese honey locust extractive, a plant acid liquid and aloe-emodin; the organic acid adopts citric acid, Chinese honey locust has a bacterial inhibition effect, the saponin component contained in the Chinese honey locust can lower surface stress, the foaming is long lasting, the cleaning effect is good, the plant acid liquid is acidic, has a broad-spectrum bactericidal effect, and has a remarkable antiinflammation and antipruritic effects, and the citric acid is used for preparing a buffering solution, is taken as a builder, can improve the performance of washed products, and can improve the performance of a surface active agent. According the special Chinese honey locust liquid soap, the formula is reasonable, the preparation process is simple, the cost is low, the smell is fragrant, the sterilizing and disinfecting effects are obvious, a skin care effect is played, and the special Chinese honey locust liquid soap is specially provided for patients receiving examinations and staffs in the clinical laboratory, can eliminate influences from various germs and further improve the examining accuracy.

A broad-spectrum ant-blocking agent for chemical fertilizer is prepared from stearic acid and monoethanolamine through heating, reaction while stirring, cooling and slicing. Its advantages are high effect, broad spectrum, and no poison and pollution.

The invention discloses a freshly-cut fruit-vegetable fresh-keeping agent, a preparation method and a use method thereof., wherein per 1000 ml of the fresh-keeping agent comprise 3-10 g of epsilon-polylysine, 10-40 g of chitosan, 40-60 ml of a fructus mume extraction liquid, 200-300 ml of a clove extraction liquid, and the balance of purified water. The preparation method comprises: taking 40-60 ml of a fructus mume extraction liquid, adding to 200-500 ml of purified water, and uniformly stirring; taking 10-40 g of chitosan, adding to the obtained solution, and uniformly stirring until completely dissolving; and taking 3-10 g of epsilon-polylysine and 200-300 ml of a clove extraction liquid, adding purified water until achieving 1000 ml, and uniformly stirring to obtain the product. The use method comprises: immersing washed fruits and vegetables in the fresh-keeping agent for 2-10 min, taking out, draining, packaging the fruits and vegetables, and storing at a temperature of 4 DEG C.According to the present invention, the freshly-cut fruit-vegetable fresh-keeping agent can inhibit the respiration and the transpiration of fruits and vegetables, can reduce the moisture loss of fruits and vegetables, has functions of sterilization, bacterial inhibition, oxidation resistance and color protection, and further can inhibit the decay of fruits and vegetables, and delay the aging of fruits and vegetables so as to achieve the purposes of fresh keeping and preservation.

The invention discloses a vinpocetine injection and a production method thereof. The vinpocetine injection comprises 10 to 20 parts of vinpocetine, 0.1 to 0.45 parts of ascorbic acid, 1 to 5 parts of one or more antioxidants, 6 to 15 parts of one or more cosolvents, 120 to 180 parts of one or more physical stabilizing agents, 15 to 25 parts of one or more vascular stimulation regulators and 2000 parts of water. Utilization of ascorbic acid in the above components is conducive to the dissolution of alkaline vinpocetine. A lot of experiments prove that the technical scheme of the invention is conducive to the dissolution of alkaline vinpocetine, realizes good antioxidation performances, and can effectively inhibit production of vinpocetine degradation products in production and storage processes.

The invention relates to a swelling solution for removing through-hole residues of an epoxy resin circuit board, in particular to a swelling solution for removing through-hole residues, which is suitable for a high-Tg epoxy resin circuit board (Tg refers to a glass-transition temperature, similarly hereafter; and high Tg indicates that the glass-transition temperature is greater than 150 DEG C, similarly hereafter). The swelling solution is composed of a water solution of a tetrahydrofuran derivate and hexanediol, and the addition amounts of the tetrahydrofuran derivate and the hexanediol are respectively 100-500g / L and 10-100g / L; and a structural formula of the tetrahydrofuran derivate is shown in the specification, wherein n is selected from 3 to 8. Because the tetrahydrofuran derivate has an effective swelling effect on epoxy resin, the residues in holes of the circuit board can be thoroughly removed after being treated by a potassium permanganate solution; meanwhile, the damage to the performance of the circuit board treated by the potassium permanganate solution cannot be caused even if a little of swelling solution is brought into the potassium permanganate solution.

The invention relates to the field of plant protective preparations and provides a chitosan compound bacterial agent. The compound bacterial agent is prepared from the following components of: chitosan, bacillus solution and Hoagland's nutrient solution, wherein the mass-volume ratio of chitosan and the Hoagland's nutrient solution is 10-25g:90-120mL, and the volume ratio of the Hoagland's nutrient solution and bacillus subtilis is (8-10):1. The chitosan compound preparation adopts chitosan and the bacillus solution as main active substances, and by complexing of chitosan and the bacillus solution, the antibacterial effect of chitosan for aspergillus niger under a higher concentration can be improved. The chitosan compound bacterial agent also can be used in plant protection, and also hasthe effects of adjusting the structure of microorganisms in root-system soil of plants, promoting decomposition of organic matters and generating rich metabolites while playing an antibacterial role so as to play roles in promoting the growth of the plants and protecting the plants.

The invention relates to a liquid-metal ion source comprising an electro-conductive housing which is preferably made of metal and provided with a hollow space for liquid or fusable metal, preferably indium, or a metal alloy. The hollow space is connected to a capillary passage which extends through an emission body protruding from the wall of a housing. According to said invention, the capillary passage has a circular cross section whose diameter (rc) ranges from 1 to 100m, preferably from 3 to 10m, at the level of the opening thereof in the emission body.

The invention discloses an anti-inflammatory and antibacterial hand sanitizer and belongs to the technical field of daily chemical articles. The anti-inflammatory and antibacterial hand sanitizer is prepared from a functional component, a surfactant, a fat liquoring agent, a humectant, a pH (Potential of Hydrogen) regulator, a thickener, a hard water resisting agent, a smoothness reduction agent,a preservative, an appearance regulator, an auxiliary surfactant and an emulsifier, wherein the functional component comprises aloe extract, chamomile extract, honeysuckle flower extract, kiwi fruit extract, garlic extract, fresh ginger extract and tea leaf powder and the size of the tea leaf powder is 50 to 80 meshes. When the product is used for removing stain, anti-inflammatory and antibacterial effects are realized; the anti-inflammatory and antibacterial hand sanitizer is used for nourishing and repairing hand skin and stimulation caused by other substances in the hand sanitizer is reduced, so that the hand skin keeps comfortable and fresh.

The invention relates to the field of plant protection preparations and provides a red algae polysaccharide compound bacterium agent. The red algae polysaccharide compound bacterium agent is preparedfrom red algae polysaccharide hydrolysate, compound bacterium liquid and a Hoagland's nutritional solution, wherein the compound bacterium liquid comprises bacillus, and also comprises one or two of clostridium butyricum and lactobacillus plantarum; the compound bacterium liquid contains 1.0*10<8> to 1.0*10<9>CFU / mL of the bacillus. According to the red algae polysaccharide compound bacterium agent provided by the invention, the red algae polysaccharide hydrolysate and the compound bacterium liquid are compounded to be used as a bacterium-inhibition active substance and a good bacterium-inhibition effect is obtained; the Hoagland's nutritional solution can provide a stable living environment and nutrient substances of initial reproduction for the compound bacterium liquid. The red algae polysaccharide compound bacterium agent has the good bacterium-inhibition effect on plant pathogenic bacteria and is safe and environmentally friendly; the red algae polysaccharide compound bacterium agent is simple and convenient to operate, low-cost and easily popularized and applied in a large scale.

The invention discloses compound colloid for increasing elasticity and crispness of low-end surimi products and a preparation method. The compound colloid is prepared form egg white powder, bovine plasma protein powder, carrageenan, konjac flour, sodium bicarbonate, maltodextrin and the like and can be used as a low-end surimi additive. As the components are gelled into a net, surimi components can be integrally combined, and a large amount of water molecules can be locked; and therefore, the elasticity and crispness of surimi products can be greatly increased, and the gel properties, qualityand functional properties of low-end surimi can be improved and enhanced.

The invention discloses a soldering flux for a halogen-free spray printing solder paste, and a preparation method of the soldering flux for the halogen-free spray printing solder paste, and relates tothe technical field of electronic packaging spray printing. The soldering flux for the halogen-free spray printing solder paste is mainly prepared by the following raw materials by percentage composition, 1.0-5.0% of organic acid activating agent, 40.0-50.0% of film-forming agent, 5.0-10.0% of thixotropic agent, 0.2-1.0% of halogen-free activity fortifier, 0.01-0.1% of copper-soluble inhibitor, 0.1-1.0% of halogen-free surface active agent, 5.0-15.0% of cosolvent, 0.01-0.1% of antioxidant, 0.01-0.1% of antibacterial agent, and the balance solvent isopropanol. The soldering flux improves the thixotropy and the viscidity of the solder paste, the problems such as mouth blocking and collapsing of the solder paste in a solder paste spray printing technology are solved, the soldering flux is high in activity, good in wetting effect, low in corrosivity and high in oxidation resistance and antibacterial property, all raw materials do not contain any halogens, and the environmental-protectionrequirement is met.

The invention discloses a method for preparing a Bi-doped ZnS photocatalyst by taking ionic liquid as a template, belonging to the field of chemistry. The method comprises the steps of carrying out ultrasonic dissolution on ZnS, feeding the product into a Bi(NO3)3 water solution, dripping C8H15N2BF4 ionic liquid into the solution to form suspension, dispersing, drying, carrying out centrifugal separation, washing and drying to obtain the Bi-doped ZnS nanosphere photocatalyst. The method is simple in steps and environment-friendly in preparation technology; the product is good in performance.