35results about How to "Low toxicity and environmental protection" patented technology

The invention discloses a 3,5-dihalogenation sulfo-benzamide insecticide and preparation method and application thereof. The 3,5-dihalogenation sulfo-benzamide insecticide is represented as a structural formula I. In the formula I: R1 is C1 or Br, R2 is selected from methyl, isopropyl and allyl, and R3 is H or C1. The 3,5-dihalogenation sulfo-benzamide insecticide can be used for prevention and control of agricultural insects or forest insects.

The invention provides a pesticide aqueous emulsion and a preparation method thereof. The pesticide aqueous emulsion has effective constituents of abamectin and chlorantraniliprole amide and also comprises a solvent and a surface active agent, wherein the solvent is selected from one or more substances of N-alkyl pyrrolidone, alkylene carbonic ester, phthalic acid ester, ionic liquid and arene; the surface active agent is selected from one or more substances of an anion surface active agent and a nonionic surface active agent. The preparation method comprises the following steps: (1) preparing a disperse phase; (2) preparing a continuous phase; and (3) mixing the disperse phase and the continuous phase under high shear to prepare the pesticide aqueous emulsion. The pesticide aqueous emulsion has the advantages of stability, high efficiency, low toxicity, environmental protection, no ignition hazard, convenient storage and transportation, and the like.

The invention discloses a gold ore low-toxicity efficient mineral separation addition agent and a preparing method of the agent. The gold ore low-toxicity efficient mineral separation addition agent comprises, by weight, 40 parts to 60 parts of thiourea, 20 parts to 40 parts of potassium ferrocyanide, 10 parts to 15 parts of sodium tripolyphosphate, 8 parts to 15 parts of ammonium iodide, 10 parts to 15 parts of ammonium persulfate, 8 parts to 12 parts of sodium peroxide, 20 parts to 40 parts of sodium carbonate, 5 parts to 10 parts of sodium hydroxide and 4 parts to 8 parts of sodium dodecyl sulfate. The gold ore low-toxicity efficient mineral separation addition agent has the advantages of being low in toxicity, environment-friendly, low in production cost, simple in preparing technology, high in gold recycling rate, wide in raw material source and the like, and has the good social benefits, the ecological benefits and the economic benefits.

The invention discloses an expansion type boron-nitrogen-phosphorus compound fire retardant and a preparation method thereof. The method comprises the following steps of (1) sufficiently mixing polypropylene materials and expansion type fire retardants; (2) performing extrusion granulation by a double-screw extrusion machine to form mixed solid particles, thus obtaining the expansion type boron-nitrogen-phosphorus compound fire retardant. By a compounding method, ammonium polyphosphate, pentaerythritol, boracic acid and tripolycyanamide are used as raw materials to obtain the expansion type boron-nitrogen-phosphorus compound fire retardant with the characteristics of small addition quantity, high fire retardant efficiency, good material compatibility, molten drip generation prevention, lowtoxicity, environment protection and the like.

The invention relates to a special multifunctional suspension type seed coating agent for spring-rice-region paddy and belongs to the technical field of agriculture. The seed coating agent is preparedfrom the ingredients in percentage by weight: 10% to 30% of insecticide, 6% to 25% of bactericide, 0.05% to 0.1% of plant growth regulator, 2% to 6% of film forming agent, 2% to 8% of dispersant, 3%to 8% of antifreezer, 0.5% to 1.0% of colorant, 0.2% to 0.3% of antifoamer and the balance of water. The seed coating agent disclosed by the invention is specially suitable for coating spring-rice-region paddy seeds; the suspension type seed coating agent, having the characteristics of high performance, low toxicity, firm coating, obvious control efficiency, long effect duration, high pesticide/seed mass ratio, environment-friendliness and the like, not only can be used for effectively preventing and controlling seedling-stage plant diseases and insect pests, but also can be used for promotingand controlling growth and enhancing stress resistance, and the percentage of establishment is increased obviously.

The invention discloses a nano-montmorillonite modified acrylic silicon/boron copper-free self-polishing type anti-fouling coating and a preparation method thereof. The preparation method thereof comprises the steps that the following components: 30-60 parts of acrylic silicon/boron self-polishing resin, 0.5-3.5 parts of modified nano-montmorillonite, 0.5-3.5 parts of chlorinated paraffin, 1-4 parts of an anti-settling agent, 1-10 parts of an organic antifouling agent, 18-50 parts of pigments and fillers and 14-26 parts of a solvent are weighed in parts by weight; glass beads are added into the raw materials, and the glass beads and the raw materials are uniformly mixed by using a glass rod; and the raw materials which are uniformly mixed are stirred and ground by using a high-speed dispersion machine so as to obtain the anti-fouling coating. The coating has the advantages of being low in toxicity, environmentally friendly and also has the excellent performances of relatively stable and durable hydrolysis and stable antifouling effect.

The invention belongs to the field of separation and preparation of natural functional substances, and relates to an extraction method of alkyl resorcinol in wheat bran. The method comprises the following steps: selecting dried wheat bran as a raw material, selecting, arranging and grinding the raw material, then adding ethyl acetate to carry out ultrasonic extraction, carrying out centrifuging toobtain a supernate, and carrying out rotary evaporation to obtain a concentrated solution; and then carrying out silica gel column chromatography by using a solid-phase extraction or a silica gel mixing sample for separation and purification, and further concentrating the eluent to obtain a mixed solution of different homolog of alkyl resorcinol. Through high performance liquid chromatography analysis, different homolog in the alkyl resorcinol product has the advantages of good separation degree, high purity and the like. Compared with the existing alkyl resorcinol preparation technology, themethod disclosed by the invention has the advantages that silica gel column chromatography is used for separating and purifying naturally existed alkyl resorcinol in the wheat bran, so that complexity and risks of chemical synthesis are greatly reduced, and operability is high.

The invention provides an activating agent for water transfer printing, and belongs to the technical field of water transfer printing. The activating agent for water transfer printing is composed of the following raw materials of, by weight, 25-35% of ethylene glycol monoethyl ether acetate, 12-18% of cyclohexanone, 7-12% of 783 isophorone, 7-12% of ethylene glycol monobutyl ether, 12-20% of n-butyl alcohol, 7-12% of butyl acetate and 7-12% of sec-butyl acetate. The activating agent for water transfer printing has the advantages of being low in toxicity and environment-friendly, is used for water transfer printing of automotive upholstery, and has the characteristic of being high in rate of finished products.

The invention relates to a phosphorus-boron heterochain prepolymer block polyurethane fabric flame-retardant water-based sizing agent and a preparation method and application thereof. The phosphorus-boron heterochain prepolymer block polyurethane fabric flame-retardant water-based sizing agent is prepared from the following components in percentage: 11.0%-15.0% of polyethylene ethanol, 4.0%-6.0% of carboxymethyl cellulose, 4.0%-5.0% of filler and 75.0%-80.0% of a phosphorus-boron heterochain prepolymer block polyurethane water-based copolymer. The preparation method of the water-based copolymer comprises the following steps that (1), an organic solvent, the phosphorus-boron heterochain prepolymer and dibutyltin dilaurate are mixed for heat preservation in a protective atmosphere under a heating condition, toluene diisocynate and dimethylolpropionic acid are added after the temperature of the system is uniform, heat preservation is carried out after the system is heated, and the solventis separated; and (2), the reaction system is cooled, a neutralizer and water are added, and stirring is carried out and the pH value is adjusted to obtain the water-based copolymer. Phosphorus-boronflame-retardant elements and hydrophilic groups are bonded into a polymer molecular structure in a chemical bond form through molecular design and synthesis, and the sizing agent suitable for rollercoating or spraying of the surface of the fabric is obtained.

The invention belongs to the technical field of wood protection, and particularly relates to a double-component wood super-hydrophobic modification liquid taking ethanol as a dispersing agent. The preparation method comprises the following specific steps: preparing a component A by using anhydrous ethanol, hydrogen-containing silicone oil, white carbon black and an inhibitor; preparing a componentB by using anhydrous ethanol, white carbon black and a catalyst; then, uniformly mixing the component A and the component B by stirring to obtain a modification solution; and finally, coating the surface of wood with the modified solution by adopting a dipping or spraying method, and carrying out drying to obtain super-hydrophobic wood. The modified solution is prepared by taking ethanol as a dispersing agent and is designed to comprise two components, and thus has the advantages of low toxicity, good storage performance and the like. The wood coated with the modified solution has super-hydrophobic performance, and can be effectively inhibited from absorbing moisture from the environment, so that the service life of the wood is prolonged.

The invention belongs to the technical field of magnetic materials and particularly relates to a preparation method of a magnetic coating. The preparation method comprises the following steps: step one, preparing a nano magnetic material; step two, preparing a nano magnetic dispersion liquid; and step three, preparing the magnetic coating. The magnetic coating provided by the invention has the characteristics of high magnetic motive force, good magnetic powder dispersibility and good use effect.

The invention relates to a low-toxicity solid-liquid mixed authigenic acid system and a high-temperature carbonate reservoir acidification method. The solid-liquid mixed authigenic acid system comprises a liquid system and a solid tablet, wherein the liquid system comprises organic acid vinyl ester and water, and the solid tablet comprises weak acid ammonium salt, guanidine gum, sucrose and magnesium stearate. The authigenic acid system can prevent aldehyde from volatilizing into air from the ground, and has the advantages of low toxicity and environmental protection; the solid tablet is carried by the liquid system, so that the authigenic acid system still has slowly released acid-generating matrix at the deep part of a high-temperature stratum and can achieve continuous acid generation under the initiation action of aldehyde, thus prolonging the acid etching action distance at high temperature.

The invention discloses a long-acting water-based cleaning agent and a preparation method thereof. The long-acting water-based cleaning agent is prepared from the following raw material components: 20-50 parts of base glue, 8-15 parts of a flame retardant, 5-8 parts of a surfactant, 10-20 parts of a solvent, 8-13 parts of a curing agent, 1-4 parts of an adhesion promoter, 2-4 parts of a catalyst, 2-4 parts of an antioxidant, 7-20 parts of filler and 50-100 parts of water. The long-acting water-based cleaning agent provided by the invention is a water-based cleaning agent prepared by taking water and base glue as main materials and other auxiliaries and fillers as auxiliary materials, and has the characteristics of low toxicity, environment friendliness and efficient cleaning, the preparation process is simple and optimized, and good comprehensive performance of an insulator can be kept; and the preparation method disclosed by the invention is relatively low in cost, easy to prepare, small in smell and low in toxicity in the cleaning process.

The invention relates to the technical field of fireproof coatings, in particular to a phosphorus-boron heterochain prepolymer block polyurethane water-based damp-proof flame-retardant carton film coating agent as well as a preparation method and application thereof. the film coating agent comprises the following raw materials: 3.0-7.0% of microcrystalline wax, 15.0-17.0% of water-soluble starch, 10.0-15.0% of a filler, 3.0-5.0% of carboxymethyl cellulose and 60.0-65.0% of phosphorus-boron heterochain prepolymer segmented polyurethane water-based copolymer, wherein the structural formula of the copolymer is shown as the formula (1).The film coating agent for roller coating or spraying on the surface of the carton is prepared by taking the copolymer as a base material, A film layer material dried and cured by the film coating agent on the surface of the carton has the synergistic composite functions of low toxicity, environmental protection, low smoke, zero halogen, long-acting flame retardance, moisture prevention, fire prevention, highlight beautification, friction reduction and wear resistance.