65results about How to "Suitable for industrial development" patented technology

The method for preparing high molecular weight fatty polyester whose number-average molecular weight is 28000-40000 and weight-average molecular weight is 6000-13000 by adopting two-stage process is characterized by that it utilizes binary acid, dibasic alcohol and (or) hydroxy acid to make polycondensation reaction to prepare terminal hydroxyl polyester performed polymer, then adopts organic silicon azane compound as chain extender to make chain expansion reaction, the mole ratio of terminal hydroxyl polyester performed polymer and organic silicon azane chain extender is 1:0.8-2.0, and the Chain expansion reaction temp. is at 90-200 deg.C. It is simple in preparation process, non-toxic, high-effective, moderate in reaction condition, and suitable for industrial production.

The invention relates to the technical field of synthesis processes of insecticides, and discloses a preparation method of chlorantraniliprole, which comprises the following steps: 1) adding 4-8 partsof maleic anhydride and 4-8 parts of methanol into a single-necked bottle, stirring the mixture, heating to 50 DEG C, and carrying out heat preservation reaction for 0.5-1.5 hours to obtain monomethyl maleate; and 2) cooling 80-120 parts of a hydrogen bromide-glacial acetic acid solution to 0 DEG C, then dropwise adding 3-5 parts of the monomethyl maleate, after addition is completed, carrying out heat preservation and stirring for 3-7 min, so that a large amount of a yellow viscous substance appears, and the monomethyl 3-bromomaleate can be prepared. The invention discloses a preparation method of chlorantraniliprole. The maleic anhydride, 2,3-dichloropyridine and 2-amino-3-methylbenzoic acid are adopted as starting materials to synthesize the target compound chlorantraniliprole througha convergent reaction. The structure is determined through HNMR, the route is mild in reaction condition, easy and convenient to operate and separate, raw materials are easy to obtain, special equipment is not needed, industrial production is easy to achieve, the action mechanism is novel and unique, and wide application and development prospects are achieved.

The invention discloses a new and old pavement base splicing interface treatment material, belongs to the field of road engineering, and aims to provide a new and old pavement base splicing interfacetreatment material for highway reconstruction and extension engineering. The new and old pavement base splicing interface treatment material comprises, by weight, 50-100 parts of an organic silicon modified polyurethane emulsion, 1-3 parts of organic modified rectorite, 100-200 parts of cement, 0.5-1.5 parts of a water reducer, 20-50 parts of water and 0.5-2.5 parts of a composite retarder. The new and old pavement base splicing interface treatment material is used for solving the problems of existing base splicing interface materials, and has the advantages of simple preparation process, stable performances, high bonding strength and good splicing effect.

The invention relates to the technical field of insect-resist agents. The invention relates to an insect repellent, in particular to a biological insect repellent and a preparation method and application thereof. The biological insect-resist agent is prepared from the following raw materials: cortex meliae, star anise, dry red peppers and fermentation strains; the fermentation strains comprise saccharomycetes, lactic acid bacteria, photosynthetic bacteria and actinomycetes. 100 kg of fermentation liquor needs following raw materials: 0.5-0.8 kg of cortex meliae, 0.5-0.8 kg of star anise, 0.5-0.8 kg of dry red peppers and 5-6 kg of EM.1 strains; according to the biological insect-resist agent, the raw materials are simple and easy to obtain, and after the biological insect-resist agent is sprayed to leaf surfaces, metabolism of plants can be enhanced, protective film cuticles of the leaves are strengthened, and pathogenic bacteria are prevented from entering the leaves; in addition, theleavening agent contains an ester component, which is not decomposed in the body of the herbivorous insect and generates physiological barrier damage and is lethal; therefore, due to the action of stimulating substances such as capsaicine, the insect can feel uncomfortable and escape from the body, the insect preventing and expelling effect is obvious, and the preparation process is simple, convenient to use, low in production cost and suitable for industrial development.

The invention discloses a method for preparing hydrogenated dialkyl azodicarbonic acid. The method comprises the steps of: mixing hydrogenated dimethyl azodicarbonic acid with sodium alkoxide solution, heating and reacting for 1-24h, and producing transesterification reaction between the dimethyl azodicarbonic acid and alcohol under the catalytic action of sodium alkoxide; after the reaction is completed, regulating the pH value of the solution to 3-8, extracting an organic phase for 2-3 times with dichloromethane, combining the organic phases, drying for 8-12h with anhydrous sodium sulfate, and then performing recrystallization to obtain the hydrogenated dialkyl azodicarbonic acid ROOCNHHNCOOR, wherein R is alkyl containing 2-16 carbon atoms. According to the method, the hydrogenated dimethyl azodicarbonic acid is used as raw material, and is green and environment-friendly, and easily available; the production cost is low, and the economy is good; the synthetic process of chloroformate ester in the traditional process can be ensured to be clean and environment-friendly, thereby meeting the green and chemical requirements; and the method for preparing the hydrogenated dialkyl azodicarbonic acid through esterification is simple to operate, short in process route, mild in reaction conditions, and high in yield, as well as suitable for industrialized development.

The method for preparing high molecular weight fatty polyester whose number-average molecular weight is 28000-40000 and weight-average molecular weight is 6000-13000 by adopting two-stage process is characterized by that it utilizes binary acid, dibasic alcohol and (or) hydroxy acid to make polycondensation reaction to prepare terminal hydroxyl polyester performed polymer, then adopts organic silicon azane compound as chain extender to make chain expansion reaction, the mole ratio of terminal hydroxyl polyester performed polymer and organic silicon azane chain extender is 1:0.8-2.0, and the Chain expansion reaction temp. is at 90-200 deg.C. It is simple in preparation process, non-toxic, high-effective, moderate in reaction condition, and suitable for industrial production.

The invention discloses a preparation method of an all-solid-state environment-friendly biopolymer electrolyte film, and relates to a preparation method for a lithium ion battery electrolyte thin film. The problems of low electric conductivity, high cost and poor environmental protection of a lithium ion battery electrolyte thin film prepared by conventional methods are solved. The method comprises the following steps: firstly, preparation of modified starch: taking a proper amount of starch, phthalic anhydride, pyridine and a solvent, under water bath conditions, blending and stirring until the solution becomes a uniform paste substance, then modifying starch with an isopropanol precipitate, next drying in a vacuum drying box, and finally grinding the obtained substance into a powder; andsecondly, preparation of the all-solid-state environment-friendly biopolymer electrolyte film: weighing cellulose, modified starch, a lithium salt and a solvent, blending and stirring, and then drying in the vacuum drying box to form the film. The prepared all-solid-state environment-friendly biopolymer electrolyte film has the advantages of good biodegradability, simple experimental process, wide sources of experimental raw materials, low cost and wide application range.