64results about How to "Stable dispersed state" patented technology

The invention relates to a combined reagent for reverse flotation of microgranular iron ore magnetic concentrate and an application method thereof, and belongs to the technical field of mineral processing. In the process of reverse flotation of the microgranular iron ore magnetic concentrate, the combined reagent comprises, by flotation feed ore dry basis weight, 900-1600 g / t of sodium hydroxide as pH regulators, 50-250 g / t of citric acid as dispersing agents, 1100-1550 g / t of causticizing corn starch as iron ore inhibitors, 750-1000 g / t of calcium oxide of quartz or silicate activating agents and 1100-1600 g / t of fatty acid type collecting agents. The magnetic concentrate is obtained through magnetic separation after iron ore is smashed and levigated; the obtained magnetic concentrate is subjected to reverse flotation; the combined reagent is applied to the reverse flotation process. According to the combined reagent, the problem that as microgranular grains are gathered or cover the microgranular iron ore magnetic concentrate, the reverse flotation concentration index is low is effectively solved.

A metal nanoparticle dispersion comprising: a dispersion of a polymer compound (X), which comprises a polyalkyleneimine chain (a), a hydrophilic segment (b) and a hydrophobic segment (c), and metal nanoparticles (Y).

The invention relates to a trace pesticide residue surface enhanced Raman spectrum detection method based on a nucleic acid aptamer, and belongs to the field of pesticide detection. The invention uses Raman active dye labeled gold nanoparticles as substrates, and uses the specific binding of pesticide and the aptamer binding to cause aggregation difference of reactive dye labeled gold nanoparticles in salt solution; a corresponding reactive dye SERS spectrum is obtained by a portable Raman spectrometer, so as to realize the quantitative detection of trace pesticide; and feasibility testing of the method is carried out in an actual tea sample. The method provided by the invention converts a conventional thinking of using the Raman characteristic peak of a target object to be detected as quantification determination in the traditional Raman technology into using the Raman characteristic peak of the reactive dye marker as the quantitative standard for target detection, so as to not only improve the detection sensitivity, simplify the preparation process of complex substrate, and provide convenience for research, inspection and supervision of trace pesticide residues in the fields of food industry.

The invention relates to hydroxyapatite composite nanoparticles, which comprise hydroxyapatite of which mass friction is 95 to 99.5 percent and cellulose with the mass friction of between 0.5 and 5 percent, wherein the appearance of the hydroxyapatite composite nanoparticles is a needle of which the length is between 50 and 310 nanometers and the width is between 3 and 30 nanometers. A method for preparing the hydroxyapatite composite nanoparticles comprises the following technological steps: (1) taking a metallic soluble salt aqueous solution or an ammonium salt aqueous solution as a solvent to dissolve the cellulose at a temperature of between 60 and 100 DEG C; (2) adding a calcium salt aqueous solution and a phosphate aqueous solution into a cellulose-salt solution after the cellulose-salt solution prepared in the step (1) is cooled to the room temperature, controlling the mol ratio of Ca to P of a reaction system is 1.2-2.0:1, subsequently adjusting the pH value of the reaction system, stopping stirring when the pH value is stably between 10 and 12, and keeping the obtained solution stand and performing aging for at least 48 hours; and (3) collecting and drying products. The composite particles have stable dispersity in an aqueous-phase medium, and can be taken as a fluorescent molecular carrier.

The present method of fluorine-contained acrylic ester copolymer stable emulsion includes the following steps: in the container equipped with stirrer, reflux condenser tube, N2 gas protection and charging device adding anionic / non-ionic composite emulsifier, then placing the water, polymerization monomer, acetone, chain transfer agent and initiator into said container, severaly stirring for 0.5-2 hr at normal temperature to obtain uniform pre-emulsion; dividing said pre-emulsion into two portions, heating one-third of the pre-emulsion to 55 deg.C-75 deg.C ioinitiate polymerization reaction, after the reaction liquor produces blue light, drop-adding residual pre-emulsion, drop-adding time is 1.5h-2.5h, after the drop additionis completed, adding residual initiator, heat-insulating reaction for 2-6 hr, stirring and cooling to room temperature so as to obtain the invented product.

The invention relates to an environment-friendly waterborne aerosol paint and a preparation method thereof. The environment-friendly waterborne aerosol paint contains the following components in parts by mass: 35-80 parts of waterborne resin, 0.01-10 parts of hyper-dispersant, 1-20 parts of pigment, 0.1-2 parts of defoaming agents, 10-40 parts of cosolvent and 10-50 parts of propellant. The environment-friendly waterborne aerosol paint adopts the special waterborne resin and has low VOC content, small toxicity and less pollution to the atmosphere. In addition, the environment-friendly waterborne aerosol paint is convenient to carry and simple in operation by adopting an aerosol package, has all the advantages of a solvent based aerosol paint and is safer and more environment-friendly.

The invention discloses a dispersing device for micron / nano-particle suspension. The device comprises an ultrasonic trough, a liquid inlet pipe, an outlet pipe and several distribution pipes. The ultrasonic trough is loaded with a water body and is provided with transducers in electric connection with an ultrasonic generator. The distribution pipes are disposed inside the ultrasonic trough, and the liquid inlet ends of the distribution pipes are all communicated with the inlet pipe, while the outlet ends are all communicated with the outlet pipe. Making use of ultrasonic cavitation effect, the device of the invention disperses the suspension flowing in the circulating pipes (including the liquid inlet pipe, the outlet pipe and the distribution pipes). As suspension within the distribution pipes is in a continuous renewal state, so the suspension for production can be maintained at a stable disperse state for a long time. Due to the small cross-section, large number of the distribution pipes and the large total superficial area of the distribution pipes, a small dispersing device can disperse a large volume of suspension used for production as long as to maintain certain flow velocity. Able to be installed in an independent equipment room, the device of the invention has reduced energy consumption, cost and noise, and simultaneously plays a role in heat transfer for the suspension used for production.

Nickel sulfide in low-grade ores is mainly recycled by a flotation method, but the defect is that the content of MgO in concentrate is high. As magnesium-containing minerals are high in smelting point and poor in mobility, when the content of MgO in concentrate is higher than 6.5%, adverse effects such as furnace body nodulation and furnace body corrosion are brought to a follow-up novel flash smelting process of nickel. In order to solve a problem that the content of magnesium in concentrate is high during separating of magnesium-nickel containing minerals, the invention provides a method for lowering the content of magnesium in pentlandite concentrate. The method comprises the following steps: adding surface conditioning agents such as sodium hexametaphosphate into the pentlandite concentrate, and uniformly dispersing ore pulp by stirring; then, adding magnetic seeds and a surfactant, and stirring to ensure that the magnetic seeds and the pentlandite concentrate generate adhesion agglomeration; and performing magnetic separation, thereby obtaining the pentlandite concentrate with the content of magnesium being lower than 6.5% (in terms of MgO). The method disclosed by the invention has the advantages of being good in pentlandite separation selectivity, environmentally friendly, low in energy consumption, easy to operate, high in efficiency, and the like, and solves a problem that the content of magnesium in nickel concentrate is high.

The invention relates to a sodium alginate-hydroxyapatite hybridization nano particle. The sodium alginate-hydroxyapatite hybridization nano particle comprises, by mass, 65%-99.5% of hydroxyapatite and 0.5%-35% of sodium alginate, the sodium alginate-hydroxyapatite hybridization nano particle is in a needle shape, the length of the needle ranges from 10 nm to 70 nm, and the width of the needle ranges from 3 nm to 20 nm. A preparing method includes the steps that alginic acid polysaccharide is dissolved into deionized water to obtain an alginic acid polysaccharide solution with the mass concentration ranging from 0.2% to 0.8%, a calcium salt aqueous solution and a phosphate aqueous solution are added into alginic acid polysaccharide solution under stirring, and the adding amount of the calcium salt aqueous solution and the phosphate aqueous solution is determined with the molar ratio of Ca / P in a reaction system being (1-2.0):1 as a limit; and in addition, the volume ratio of the calcium salt aqueous solution to the phosphate aqueous solution is 1:(20-40), then the pH value of the reaction system is adjusted to be 10-12, stirring is stopped, standing ageing is carried out for at least 5 days, and a reaction product is collected after standing ageing is carried out and is dried. The sodium alginate-hydroxyapatite hybridization nano particle is particularly suitable for serving as an anti-cancer drug carrier.

The invention belongs to the technical field of science, technology and environmental protection, and particularly relates to a stable tourmaline slurry and a preparation method thereof. The preparation method of the tourmaline slurry comprises the following steps: uniformly stirring 1-2 parts of tourmaline, 80-100 parts of an alcohol-water mixture, 0.1-1 part of nanocellulose, 0.5-1.5 parts of silicon oxide, 10-20 parts of a menthol solution and 6-8 parts of an essence solvent; then, putting in a planetary ball-milling tank; and ball-milling to prepare a substance which is the stable tourmaline slurry. The stable tourmaline slurry developed in the invention can be used for interior wall decoration materials of buildings, overcomes shortcomings of an electro-negative oxygen ion generator,utilizes a function of emitting negative oxygen ions of tourmaline to increase the content of indoor negative oxygen ions, not only is simple in construction, but also improves the efficiency of releasing the negative oxygen ions of the tourmaline.

The present invention relates to the technical field of preparation of humidity-controlling materials, and more particularly to a preparation method of a high-temperature resistant composite humidity-controlling material. When indoor humidity is high, capillary condensation may occur in the internal pores of diatomite, so that the humidity is reduced. When the humidity is low, the moisture storedin the pores of the diatomite can be released through the pores, so that the environmental humidity is improved. Calcium lignosulphonate is grafted with acrylamide to obtain a graft copolymer, and thelignosulfonate is adsorbed to various organic or inorganic particles, so that the hydration of free water molecules on the diatomite crystal layer is effectively weakened and blocked. Meanwhile, thecoalescence stability of the system is improved by a large number of anionic groups and non-ionic polar groups. N-vinyl pyrrolidone has the capability of resisting high-temperature degradation and metal salt ion invasion, and meanwhile, the nitrogen atoms and oxygen atoms in the N-vinyl pyrrolidone interact with the oxygen atoms or ammonia atoms in the acrylamide molecules, so that the hydrolysisof the acrylamide can be inhibited. The preparation method has an extensive application prospect.

The invention discloses a preparation method of easily dispersible quaternary ammonium salt modified nano organic montmorillonite. The preparation method is characterized by including first utilizingrare earth ions to chemically modify montmorillonite layered crystals, and then adsorbing a large amount of organic quaternary ammonium salt cations in the interlayer region to obtain the quaternary ammonium salt modified organic montmorillonite that can be fully stripped and completely dispersed in a polymer matrix. The mechanical strength, the mechanical property, the heat resistance and the gasbarrier property of a polymer are greatly improved.

A metal nanoparticle-protecting polymer includes a polyacetylalkylenimine segment (A) in which 5 to 100 mol% of primary amines in polyalkylenimine are acetylated and 0 to 50 mol% of secondary amines in polyalkylenimine are acetylated, and a hydrophilic segment (B) in a molecule. Also provided are a method for producing the metal nanoparticle-protecting polymer,a metal colloidal solution including a medium and composite bodies dispersed in the medium, each composite body containing a metal nanoparticle protected with the metal nanoparticle-protecting polymer, and a method for producing the metal colloidal solution.

The invention discloses a method for preparing a heat-resistant liquid-holding lithium battery diaphragm and belongs to the technical field of lithium battery preparation. The battery diaphragm is mainly composed of aluminium oxide and silicon dioxide, the melting points of which are both above 1000 DEG C, the produced heat and the increased temperature are low during battery charging and discharging and the pore structure of the battery diaphragm is not influenced by high temperature expansion, so that the battery diaphragm has strong heat resistance; a shorter channel can be provided for ionconduction and the ion resistance is reduced by utilizing an aluminium oxide membrane with high porosity and a through-pore structure in the lithium battery diaphragm, so that the electrochemical performance is improved; and calcium lignosulfonate and acrylamide are grafted to obtain a graft copolymer and the graft copolymer is modified by dimethylamine and formaldehyde and reacted with N-vinyl pyrrolidone to obtain an amphoteric graft copolymer which can serve as an organic hygroscopic material to improve the wettability of the battery diaphragm to an electrolyte, so that the liquid absorption rate and the liquid-holding rate of a lithium battery are increased; and therefore, the lithium battery diaphragm has a broad application prospect.

A water-dispersible carbon black pigment excellent in water dispersibility and ink performance; and a process for producing an aqueous carbon black dispersion. The water-dispersible carbon black pigment comprises a mixture of a carbon black (A) having a nitrogen-adsorption specific surface area of 150 m<2> / g or larger, a DBP absorption of 95 cm<3> / 100 g or higher, and a specific coloring power of 120% or higher and a carbon black (B) having a nitrogen-adsorption specific surface area smaller than 150 m<2> / g, a DBP absorption less than 95 cm<3> / 100 g, and a specific coloring power of 120% or higher in a proportion of from 20:80 to 80:20 by weight, these carbon blacks having undergone a surface oxidation treatment and a neutralization treatment, and at least the carbon black (A) having undergone a disaggregation treatment. The process comprises separately dispersing the carbon black (A) and the carbon black (B) in an aqueous oxidizing agent solution to conduct an oxidation treatment, subjecting these carbon blacks to a neutralization treatment, subjecting at least the carbon black (A) to a disaggregation treatment, thereafter purifying them, subsequently mixing the carbon black (A) with the carbon black (B) in a proportion of from 20:80 to 80:20 by weight, and then dispersing the resultant water-dispersible carbon black pigment into an aqueous medium.

The present invention provides a pigment disperse combination, a coloring photosensitive combination, a color filter, a liquid crystal display element and a solid camera shooting element; the pigmentdisperse combination is capable of dispersing minute pigment in a manner of one particle, has an excellent disperse stability and may be formed coloring tunica with an excellent contrast grade; the coloring photosensitive combination contains the pigment disperse combination, has an excellent curing sensitivity, and may be formed high strength coloring curing membrane with an excellent contrast grade. The pigment disperse combination of the invention is characterized in that the pigment disperse combination contains (a) a high molecular compound, (b) a pigment and (c) an organic solvent, the high molecular compound contains at least one repetitive unit of repetitive units represented by formula (I) and formula (II), in the formula (I) and (II), R<1>-R<6> represent hydrogen atom and the like, X<1> and X<2> represent -CO- and the like, L<1> and L<2> represent two-valency organic linking groups and the like, Y<1> represents an oxygen atom and the like, Y<2> represents -C(=O)O- and the like, Z<1> and Z<2> represent groups containing a C-C double bond, m and n represent integers from 2 to 8, and p and q represent integers from 1 to 100.

The invention relates to a ceramic slurry high-solid content promoter and a preparation method thereof. The preparation method comprises the following steps of 1, orderly adding water, a functional monomer and a part of an inorganic chain transfer agent into a mixer, mixing, and heating to a temperature of 70 to 80 DEG C with stirring to obtain a mixed solution I, 2, mixing an unsaturated carboxylic acid monomer, the functional monomer, the rest of the inorganic chain transfer agent and water into mixed monomers, and dissolving an initiator in water to obtain an initiator solution, 3, dropwisely adding the mixed monomers and the initiator solution into the mixed solution I in parallel, and after dropwise addition, carrying out heat preservation for 2 to 4 hours to obtain a mixed solution II, and 4, cooling the mixed solution II to a temperature of 40 to 50 DEG C, dropwisely adding a sodium hydroxide solution having a mass concentration of 30% into the mixed solution II until a PH value of the mixed solution II is in a range of 6 to 8, after dropwise addition, carrying out heat preservation for 0.5 to 1 hour, cooling, filtering and carrying out emptying to obtain the ceramic slurry high-solid content promoter. In a ceramic preparation technology, through utilization of the ceramic slurry high-solid content promoter obtained by the preparation method, ceramic blank strength and ball milling effects are improved.

The invention discloses a process for extracting nano silicon oxide in natural quartz sand and painting thereof. The process comprises the following extraction steps: 1, washing the quartz sand by water to remove soil; 2, washing the quartz sand by acid to remove iron impurity to obtain more than 99 percent high-purity silicon oxide quartz sand; 3, crushing the quartz sand to obtain powder of 1 to 5 micrometers; 4, soaking the powder quartz sand into the water, adding dispersant into the water, and then applying high shearing force to the water dispersion solution containing the powder quartz sand to form nano silicon oxide dispersion solution within 100 nanometers; and 5, dynamically removing moisture from the nano silicon oxide dispersion solution to obtain loose nano silicon oxide powder. The painting method is carried out by mixing the following components in percentage by weight: 10 to 50 percent of the water, 0.1 to 1 percent of polyacrylamide, 5 to 15 percent of resin, and 34 to 84.9 percent of the nano silicon oxide dispersion solution. The process solves the problem of interface compatibility of the nano quartz sand and organic resin, and greatly improves the mechanical strength and chemical stability of a membranous layer under the condition of the same appearance as the pure resin.

The invention discloses a non-vulcanized glue film of a hydrogenated butyronitrile-polyvinyl chloride blended emulsion and a preparation method and an application thereof, which belong to a chemical product and a preparation method thereof. The method is characterized in that: a non-vulcanized self-crosslinking HNBR (Hydrogenated Nitrile Butadiene Rubber) / PVC (Polyvinyl Chloride) latex film is prepared from HNBR or a HXNBR (Hydrogenated Carboxyl Nitrile Butadiene Rubber)-PVC blend emulsion by means of the self-crosslinking capability in the absence of a vulcanizing agent by using the self-crosslinking capability of HNBR or HXNBR latex with a latex steeping method. The method comprises the following steps of: uniformly mixing HNBR or HXNBR latex with a PVC emulsion to prepare a mixed latex emulsion; and steeping, leaching and drying the mixed emulsion to obtain a glue film product. A process of the non-vulcanized glue film has the advantages of simple and practicable process, low energy consumption, capability of self-crosslinking without adding any crosslinking agent and high performance.

The invention discloses a method for detecting a new coronavirus SARS-CoV-2 antigen by combining a two-dimensional plane with SERS (Surface Enhanced Raman Scattering), and belongs to the technical field of biology. According to the detection method disclosed by the invention, the principle of specific recognition of a new coronavirus SARS-CoV-2S protein-nucleic acid aptamer is utilized, after specific immunization is carried out on S protein and a two-dimensional plane of immune gold nanoparticles attached with the new coronavirus SARS-CoV-2S protein, the immune gold nanoparticles are combined with immune gold signal nanoparticles, and a sandwich structure is constructed; then, the SERS signal can be directly detected through a portable Raman spectrometer, and the ultrahigh detection sensitivity of the SARS-CoV-2S protein as low as 1TU / ml to the new coronavirus SARS-CoV-2S protein is realized. According to the method, nucleic acid extraction or antibody-dependent detection is not needed, the novel coronavirus SARS-CoV-2 protein can be specifically and ultrasensitively detected in a short time, and a favorable and effective way is created for early screening of pathogens infected with the novel coronavirus SARS-CoV-2S.

The invention provides a novel efficient composite guanidyl papermaking bactericide, and belongs to the technical field of papermaking bactericide production. The bactericide comprises following components in parts by weight: 10-30 parts of a guanidyl polymer, 5-15 parts of 2-octyl-2H-isothiazol-3-one, 150-450 parts of diethylene glycol, 0.5-1.5 parts of dodecyl dimethyl benzyl ammonium chloride,0.3-1.8 parts of hydroxymethyl cellulose and 0-100 parts of potassium hydrogen phthalate, wherein the guanidyl polymer is polyhexamethylene biguanidine hydrochloride. Polyhexamethylene biguanidine hydrochloride is a broad-spectrum antibacterial product, has killing capacity on Gram-positive bacteria, Gram-negative bacteria, fungi and saccharomycetes and can be used for producing and manufacturingantibacterial paper for health products to replace silver-containing Kuerxin paper, and meanwhile, a polyhexamethylene biguanidine hydrochloride solution also improves physical properties and hygroscopic property of the paper and strength and breathability of the paper stained with water, so that the solution is a papermaking bactericide with excellent performance; the bactericide is one efficientand broad-spectrum composite type TS-302 papermaking bactericide under the synergistic effect of the components.

The invention discloses a process for producing NBR and PVC mixed rubber by using a latex coprecipitation method, which comprises: uniformly mixing NBR and PVC at 50 to 70 DEG C according to a ratio of 3:1 to prepare NBR / PVC mixed latex; and adding a deflocculant into the NBR / PVC mixed latex for curing, adding a flocculating agent at last to perform coprecipitation and flocculation in the NBR / PVC mixed latex, and drying the flocculate to obtain the finished product. The production process is simple, easy and low in energy consumption, and the produced NBR / PVC blended rubber has high performance.

The invention discloses a method for preparing a lignin-based dispersing agent by purifying pulping black liquor through a capacitive deionization method. The preparation method comprises the following steps of (1), adding the pulping black liquor into a reactor, removing a charged impurity in the pulping black liquor with a direct-current voltage of 1.0V to 3.0V by using an electrode, making the pulping black liquor flow through the electrode at a flow speed of 0.1m / min to 0.5m / min, interrupting a power supply once per 5min to 30min to clean the electrode, then recycling the electrode again, and treating a raw material of the pulping black liquor; (2), adding the pulping black liquor from which the charged impurity is removed into another reactor, raising temperature to 60 to 80 DEG C, adding an oxidant into the another reactor, making an obtained first mixture react for 0.5h to 2.0h, afterwards, adding an aldehyde type compound into the another reactor, making an obtained second mixture react for 0.5h to 3.0h at 60 to 100 DEG C, then adding a sulfonating agent into the another reactor, making an obtained third mixture react for 2.0h to 5.0h at 90 to 130 DEG C, then regulating the PH (Potential of Hydrogen) of a reaction system to be 11 to 13, adding sodium hypophosphite into the another reactor, making an obtained fourth mixture react for 1.0h to 4.0h at 80 to 120 DEG C, then adding a quaternizing agent into the another reactor, making an obtained fifth mixture react for 1.0h to 4.0h, then carrying out cooling and discharging to obtain a black-brown liquid product, and drying the black-brown liquid product, so that powder of the lignin-based dispersing agent is obtained.

The invention discloses a preparation method and application of a silver powder dispersoid. The method comprises the steps of: dissolving polyethylene glycol, a quaternary ammonium salt cationic surfactant and a silane coupling agent with water to obtain a mixed solution, adding nano silver powder and micron silver powder, and ball-milling the mixture well, and carrying out filtering and drying to obtain modified silver powder; and dissolving amino-terminated hyperbranched polyamide in a solvent, adding ethylene glycol diglycidyl ether and the modified silver powder, grinding well, and carrying out heating, grinding and reacting to obtain the silver powder dispersoid. The silver powder dispersoid has better dispersion stability and conductivity and can be applied to preparation of conductive silver paste.

The invention provides polymethyl methacrylate-sodium maleic acid fatty alcohol ester-aluminum oxide nanocomposite material and a preparation method thereof. The method is as below: using the PMMA andsodium maleic acid fatty alcohol ester as copolymerization monomers, using sodium maleic acid fatty alcohol ester as an emulsifier, and adding an initiator to prepare a pre-emulsion; with sodium maleic acid fatty alcohol ester as a dispersing agent, pre-dispersing nano-Al2O3 in an aqueous solution, and adding PMMA to the above dispersion liquid to form an emulsion polymerization system; heating the emulsion polymerization system to an initiation temperature, adding an initiator, and during the polymerization, gradually dropwise adding the pre-emulsion prepared in the step 1 to the emulsion polymerization system; and conducting complete reaction to obtain the polymethyl methacrylate-sodium maleic acid fatty alcohol ester-aluminum oxide copolymer emulsion. In the copolymer emulsion and copolymer microsphere powder, the aluminum oxide is dispersed at a nano level, and the dispersion state is uniform and stable; therefore, the method solves the serious agglomeration problem of the nanoparticles in the polymethyl methacrylate-sodium maleic acid fatty alcohol ester-aluminum oxide nanocomposite material.

The invention provides a high-efficiency composite guanidine-based paper-making fungicide, which belongs to the technical field of paper-making fungicide production. In parts by weight, the fungicide comprises the following components: 10-30 parts of guanidine-based polymer, N-octyl 5-15 parts of isothiazolinone, 150-450 parts of diethylene glycol, 0.5-1.5 parts of dodecyl dimethyl benzyl ammonium chloride, 0.3-1.8 parts of hydroxymethyl cellulose, o-phenyl Potassium hydrogen diformate 0‑100 parts. The guanidine-based polymer is polyhexamethylene biguanide hydrochloride. Polyhexamethylene biguanide hydrochloride is broad-spectrum antibacterial, has killing ability to Gram-positive bacteria, Gram-negative bacteria, fungi and yeast, and can be used to produce antibacterial paper for health and hygiene products to replace silver-containing libraries At the same time, the polyhexamethylene biguanide hydrochloride solution also improves the physical properties of the paper, water absorption, strength after being wetted with water, and air permeability, so it is a papermaking fungicide with excellent performance. The synergistic effect is a compound TS-302 papermaking fungicide with high efficiency and broad spectrum.

The invention discloses environment-friendly polymer cement waterproof coating which is characterized in that the coating is prepared by mixing a liquid material and a powder material according to a mass ratio of 1:(0.9-2); the liquid material is prepared from the following raw materials in parts by weight: 40-60 parts of a vinyl-terminated waterborne polyurethane emulsion, 10-20 parts of 2,6-diaminopurine riboside / 5,5-dimethyl-1,3-bis(oxiranyl methyl)imidazolidine-2,4-dione polycondensate, 1 to 3 parts of allyl 2-chloro-1,1,2-trifluoroethyl ether, 1 to 4 parts of a cosolvent, 2 to 5 parts ofan emulsifier, 0.1 to 0.3 part of a dispersing agent, 0.1 to 0.3 part of a defoaming agent, 1 to 3 parts of a coupling agent and 20-30 parts of water; the powder material comprises the following components in parts by weight: 30-40 parts of cement, 10-20 parts of palygorskite powder, 10-20 parts of cordierite powder, 5-10 parts of zircon powder, 5-10 parts of waste gypsum, 1-2 parts of lignin and0.3-0.6 part of a photoinitiator. The coating is excellent in comprehensive performance, good in performance stability, large in adhesive force, not easy to fall off, good in corrosion resistance, wear resistance and mechanical property, and safe and environment-friendly to use.

The invention discloses a compound fertilizer with difficult-caking effect for rice. The compound fertilizer is prepared from the following raw materials of urea, ammonium nitrate, potassium sulfate,calcium magnesium phosphate fertilizer, compost organic fertilizer powder, diatomaceous earth, and modified sepiolite; the compost organic fertilizer powder comprises the following raw materials in parts by weight: livestock and poultry manure, crop straw, humus soil and rice bran. The compound fertilizer has the advantages that by adding the modified sepiolite and other raw materials, the dispersivity of the compound fertilizer is improved, and the agglomeration phenomenon is relieved.

The invention discloses a non-vulcanized glue film of a hydrogenated butyronitrile-polyvinyl chloride blended emulsion and a preparation method and an application thereof, which belong to a chemical product and a preparation method thereof. The method is characterized in that: a non-vulcanized self-crosslinking HNBR (Hydrogenated Nitrile Butadiene Rubber) / PVC (Polyvinyl Chloride) latex film is prepared from HNBR or a HXNBR (Hydrogenated Carboxyl Nitrile Butadiene Rubber)-PVC blend emulsion by means of the self-crosslinking capability in the absence of a vulcanizing agent by using the self-crosslinking capability of HNBR or HXNBR latex with a latex steeping method. The method comprises the following steps of: uniformly mixing HNBR or HXNBR latex with a PVC emulsion to prepare a mixed latex emulsion; and steeping, leaching and drying the mixed emulsion to obtain a glue film product. A process of the non-vulcanized glue film has the advantages of simple and practicable process, low energy consumption, capability of self-crosslinking without adding any crosslinking agent and high performance.

The invention provides a polystyrene-sodium maleic acid fatty alcohol ester-aluminum oxide nano-composite material and a preparation method thereof. The method is as below: using PS and sodium maleicacid fatty alcohol ester as copolymerization monomers, using the sodium maleic acid fatty alcohol ester as an emulsifier, and adding an initiator to prepare a pre-emulsion; with the sodium maleic acidfatty alcohol ester as a dispersing agent, pre-dispersing nano-Al2O3 in an aqueous solution, and adding PS to the above dispersion liquid to form an emulsion polymerization system; heating the aboveemulsion polymerization system to an initiation temperature, adding an initiator, and during the polymerization, gradually dropwise adding the pre-emulsion prepared in the step 1 to the emulsion polymerization system; and conducting complete reaction to obtain a polystyrene-sodium maleic acid fatty alcohol ester-aluminum oxide copolymer emulsion. In the copolymer emulsion and copolymer microspherepowder, the aluminum oxide is dispersed at a nano level, and the dispersion state is uniform and stable; therefore, the method solves the problem of serious agglomeration of nanoparticles in the polystyrene-aluminum oxide composite material.