14results about How to "No smell" patented technology

This invention discloses a compound corrosion inhibitor for CO2 flooded oil recovery fluid and its preparation method, comprising the following steps: Oleic acid and a catalyst are weighed and added to a reaction vessel; the temperature is raised in stages using a programmable electric heating mantle; a water-carrying agent is added dropwise at 80-100℃, and diethylenetriamine or triethylenetetramine is added dropwise at 110-130℃, controlling the reaction temperature and time; after water separation, the reaction is further carried out at 200-230℃; subsequently, the system is cooled to 60-70℃, and a quaternizing reagent is added to react, respectively preparing corrosion inhibitor E and corrosion inhibitor S; finally, corrosion inhibitor E and corrosion inhibitor S are compounded in a certain proportion to obtain the compound corrosion inhibitor for CO2 flooded oil recovery fluid. This preparation method is simple and easy to implement, reducing costs; when the prepared corrosion inhibitor is applied to CO2 flooded oil recovery fluid corrosion inhibition, it exhibits excellent corrosion inhibition effect, greatly reducing corrosion hazards in CO2 flooded oil recovery applications.

This invention provides the preparation and application of a strain of *Lactiplantibacillus plantarum* INM3104 that reduces raffinose in whole grain dough. This strain, *Lactiplantibacillus plantarum* INM3104, which degrades raffinose, was deposited at the Guangdong Provincial Microbial Culture Collection Center on April 11, 2024, with accession number GDMCC NO:64512. The advantages are: it only reduces the raffinose content in whole grain products, while also improving the flavor and quality of the whole grain products; the whole grain products produced using this preparation do not affect the overall processing of the whole grain products after fermentation, not only improving the taste of the whole grain products but also reducing the adverse factors associated with whole grain products.

This invention discloses a method for preparing high-transparency tamarind polysaccharide gum through decolorization and deodorization. A combined purification process of enzymatic hydrolysis-sedimentation-chemical degradation-solvent washing-ultrafiltration is employed. Enzymatic hydrolysis degrades large molecules of proteins and fats in the extract into smaller molecules. Sodium hypochlorite is used for chemical degradation, oxidizing aldehydes and ketones in the extract into carboxylic acids. Finally, organic solvent washing and ultrafiltration purification remove impurities generated during enzymatic hydrolysis and chemical degradation, ultimately yielding high-transparency, odorless tamarind polysaccharide gum. The final product is white, with a transmittance of up to 95.4% at a 1% concentration, and is completely odorless, significantly improving product quality. This preparation process is simple, operates under mild conditions, and is suitable for industrial production.

The application discloses a coffee green bean flavor optimization roasting method based on a heat compensation model and suitable for full-specification direct fire equipment, and belongs to the technical field of coffee roasting processes. The method calibrates the preheating temperature by measuring the temperature loss value of the equipment, adopts 145-155 DEG C as the unified target bean temperature, adopts phased fire regulation to complete roasting, and adopts forced rapid cooling to lock the flavor after the roasting is completed. The application does not need to transform the equipment, can be suitable for 200g to industrial full-specification direct fire roasting machines, can effectively improve the problems of uneven astringency, smoky miscellaneous flavor and unstable batch flavor of coffee beans, and the finished product has prominent sweetness, clean flavor and obvious origin characteristics, is suitable for various high-quality coffee roasting production, and has strong practicality and popularization value.

This invention belongs to the field of inorganic material preparation and relates to a method for preparing flower-shaped basic copper nitrate. The method is characterized by: (1) preparing a copper nitrate solution with a concentration of 0.1-0.6 mol / L; (2) using triethanolamine as the only amine morphology regulator and complexing agent at a speed of 200-500 rpm, adding triethanolamine with an initial concentration of 0.2-0.4 mol / L to the copper nitrate solution, stirring the reaction at 30-70℃ for 0.5-3.0 h, and controlling the pH of the mixed solution between 4.0 and 7.0; (3) after the reaction, the precipitate is not aged and allowed to stand, and is directly washed by centrifugation with deionized water and ethanol more than three times, and dried to obtain flower-shaped basic copper nitrate. The beneficial effects of this invention are: a basic copper nitrate with good dispersibility, regular shape and good stability is prepared by a one-step precipitation method. It has the advantages of simple synthesis steps, mild reaction conditions and green environmental protection, and is suitable for industrial production.

This invention discloses a high weather-resistant, alkali-resistant, long-shelf-life cement-based tile adhesive and its preparation method. By weight, it comprises the following components: 32-39 parts silicate cement, 37-48 parts mineral composite aggregate, 2.0-4.5 parts redispersible latex powder, 0-2.0 parts silicone-acrylic modified latex powder, 0.2-0.35 parts cellulose ether, 0.2-0.5 parts plant-based water-retaining colloid, 1.5-3.5 parts mineral fiber, 0.5-1.5 parts nano-reinforcing powder, 0.5-1.2 parts siliceous tempering functional component, 3-7 parts activated zeolite powder, 1.5-3.0 parts modified bentonite, 0.2-0.5 parts calcium stearate, 0.4-0.8 parts calcium formate, 0.1-0.25 parts polycarboxylate superplasticizer, 0.15-0.35 parts silicone powder, and 0.1-0.2 parts powder defoamer. The beneficial effects are: the material has excellent bonding performance, anti-slip properties, and long open paving time, while also having the characteristics of strong resistance to alkali return, resistance to drying shrinkage and cracking, weather resistance and durability, the powder is not easy to absorb moisture and clump, and has a long shelf life; the preparation method is stable and compatible with conventional dry powder mortar production lines, and different compatible grades of products can be produced on the same line, with strong controllability in mass production.

This invention discloses a sprayable, high-adhesion, room-temperature curing liquid silicone rubber, its preparation method, and its applications. The rubber comprises component A, containing a base silicone rubber and a catalyst, and component B, containing a base silicone rubber and a crosslinking agent, wherein the mass ratio of component A to component B is 1:1. Compared with existing technologies, the product of this invention has extremely low viscosity, can be sprayed, and cures rapidly at room temperature in the presence of solder, flux, etc., allowing workpieces to be handled 30 minutes after application.

This invention discloses a device for restoring the functionality of waste cat litter, comprising a drying chamber, a pyrolysis chamber, and a collection box arranged sequentially from top to bottom. The drying chamber has a feed inlet with a screen inside. The drying chamber and the pyrolysis chamber are connected by a connecting pipe. The pyrolysis chamber contains a pyrolysis furnace. The collection box has a sieve plate below the lower outlet of the pyrolysis chamber, and a waste box below the sieve plate. The end of the sieve plate away from the lower outlet of the pyrolysis chamber slopes downwards. Pre-treated cat litter is poured into the drying chamber through the feed inlet for drying, and then enters the pyrolysis chamber for further pyrolysis of cat excrement mixed in with the litter. The pyrolysis products fall onto the sieve plate in the collection box, where the powdery waste is sieved into the waste box by natural sliding. The pyrolyzed cat litter particles slide from the sieve plate into the collection box, resulting in functionally restored cat litter. This cat litter is clean, sterile, and odorless. After flavoring and cooling, it can be used directly as a new product. This device reduces resource waste, lessens the environmental burden, and has broad market prospects.

This application relates to the field of milk tea preparation technology, and in particular to a compound dried fruit beverage and its preparation method. Using specialty dried fruits such as jujubes, hawthorn berries, large apricots, and small white apricots as core ingredients, it combines medicinal and edible auxiliary materials and natural milk base. Through low-temperature slow extraction for aroma enhancement, gradient cooking to lock in nutrients, and microencapsulation to protect activity, it solves the technical problems of traditional dried fruit milk tea, such as bland fruit flavor, easy nutrient loss, layered taste, and cloying sweetness. The milk tea of ​​this invention has a high degree of integration of fruit and milk aromas, a smooth and mellow taste, and also possesses health benefits such as strengthening the spleen and aiding digestion, replenishing qi and nourishing blood. It contains no artificial flavors or preservatives, and has a shelf life of up to 90 days at room temperature. Experimental verification shows that its total phenol content is ≥6.8mg / g, total flavonoid content is ≥3.2mg / g, antioxidant capacity is ≥75%, and sensory score is above 92 points, indicating significant industrialization potential.

This invention relates to the field of adhesive preparation technology, and particularly to an environmentally friendly composite organic adhesive suitable for reinforcing and bonding multifunctional backpack components. The adhesive comprises 35% epoxy resin, 10% polyurethane, 35% ethyl cyanoacrylate, 10% liquid crystal polymer powder, 5% banana oil, and 5% acrylic acid. Synergistic effect of multiple components: epoxy resin provides high strength and rigidity, polyurethane provides flexibility and toughness, ethyl cyanoacrylate provides fast fixation, and liquid crystal polymer powder provides wear and weather resistance. The six components complement each other, achieving a combination of fast curing, high strength, flexibility, and weather resistance. Perfect compatibility with multiple materials: It exhibits excellent adhesion to fabrics such as nylon, polyester, and canvas, as well as ABS, PC, PP, TPU, and polyethylene fibers, with strong interfacial bonding and no selective adhesion defects. Extremely adaptable to various working conditions: It is resistant to repeated bending, friction and wear, water immersion, UV aging, and high and low temperatures, meeting the requirements of complex outdoor environments and long-term dynamic use, and the bonded parts are not prone to failure.

The application provides a polyalkylene imine and a preparation method thereof, and belongs to the field of high polymer materials. The method uses azepane as raw material and performs polymerization under the action of chloro ferric acid ionic liquid initiator. By controlling the acidity of the chloro ferric acid ionic liquid, the dosage, the concentration of azepane, the solvent, the polymerization temperature and the time, the control of the polymerization degree of the material can be effectively realized, and the corresponding polyalkylene imine material is formed. The method has the following advantages: (1) the reaction condition is mild, and high temperature and high pressure conditions are not needed; (2) the raw material conversion rate is as high as 99% or more, and the polymerization material is basically odorless; (3) the product has wide application range, and can be used in the polymerization reaction of azepine, azetidine, alkyl-substituted azepine, alkyl-substituted azetidine and other materials; (4) the obtained material has wide application in the fields of flocculants, corrosion inhibitors, liquid crystal polymers, coating layers, gel-type water shutoff agents, drug carriers and gene transfection.

The invention belongs to the technical field of biological fermentation, particularly relates to a preparation method of high-concentration ethyl acetate high-ester flavoring liquor, and provides the following scheme: the method comprises the following steps: step 1, expanding culture: expanding culture of saccharomyces cerevisiae by using a wort culture medium, and carrying out aerobic culture; step 2, concentration: carrying out reduced pressure distillation concentration on the acetic acid fermentation liquor obtained in the step 1; step three, esterification: mixing the concentrated acetic acid fermentation liquor obtained in the step two with fragrant tail liquor, adjusting the pH value to be below 4, adding immobilized esterifying enzyme, stirring at 40 DEG C, sealing and culturing, and carrying out esterification reaction; step 4, distillation: performing reduced pressure distillation on the esterified material in the step 3; and step 5, dehydration: carrying out dehydration treatment by adopting an inorganic vapor permeable membrane. The high-ester flavoring wine containing high-concentration ethyl acetate is produced through the steps of concentration, esterification, distillation, dehydration and the like, the whole process of the flavoring wine is completed through biological fermentation, the flavoring wine is green and safe, and diversified wine mixing requirements are met.

This invention relates to the field of automotive interior technology, specifically disclosing an environmentally friendly, high-strength automotive headliner. From bottom to top, it comprises: a non-woven fabric layer, a first adhesive layer cast on the surface of the non-woven fabric layer, a first toughening fiber felt bonded to the surface of the first adhesive layer, a second adhesive layer cast on the surface of the first toughening fiber felt, a polyurethane substrate bonded to the surface of the second adhesive layer, a third adhesive layer cast on the surface of the polyurethane substrate, a second toughening fiber felt bonded to the surface of the third adhesive layer, and a fourth adhesive layer cast on the surface of the second toughening fiber felt. Both the first and second toughening fiber felts are made of toughening fibers. The first, second, third, and fourth adhesive layers are all made of composite ethylene-vinyl acetate copolymer. The multi-layered structure of this automotive headliner features tight adhesion, preventing interlayer separation, good external rigidity, and no deformation. It also exhibits excellent sound absorption performance, is odorless, and is safe and environmentally friendly.

This application relates to the field of insecticide technology, specifically to a slow-release insecticidal suspension and its preparation method. The insecticidal suspension comprises the following raw materials in weight percentages: 8%–30% thiamethoxam, 7%–20% lambda-cyhalothrin, 0.1%–2% slow-release agent, 3%–10% emulsifier, 1%–5% dispersant, 1%–5% silica, 1%–5% activated clay, 0.1%–2% xanthan gum, and water to 100%. The dispersant includes a first dispersant and a second dispersant; the first dispersant is sodium lignosulfonate, and the second dispersant is one or both of sodium maleic acid-acrylic acid copolymer and sodium naphthalenesulfonic acid formaldehyde polymer. The slow-release insecticidal suspension of this invention avoids Austronesian maturation, has good dispersibility, can be processed into high-concentration formulations, has low packaging costs, good stability, long shelf life, high suspension rate, and good slow-release effect.