41results about How to "Easily biodegradable" patented technology

The invention discloses a modified deacetylated chitosan composition as well as a preparation method and application thereof. The modified deacetylated chitosan composition comprises a modified deacetylated chitosan carrier and an active matter, the modified deacetylated chitosan carrier comprises deacetylated chitosan of which the surface is modified with amino acid and / or hydroxyethyl; the active matter carries negative charge groups, and the negative charge groups comprise at least one of carboxyl, sulfo, phosphate and sulfydryl; the mass ratio of the modified deacetylated chitosan carrier to the active matter is 1: (0.1-100). The modified deacetylated chitosan composition provided by the invention can enter the interior of the skin through pores of the skin by utilizing the specific physicochemical properties of the nanoparticles, achieves a good transdermal effect under the condition of not damaging the skin structure, and is natural, safe and high in transdermal efficiency.

The invention belongs to the technical field of daily chemical products, and discloses an antibacterial fabric softener as well as a preparation method and application thereof. The antibacterial fabric softener is prepared from the following raw materials in percentage by mass: 3 to 15 percent of diester gemini quaternary ammonium salt; 1 to 10 weight percent of oleic acid-based imidazoline quaternary ammonium salt; 0.1-3 wt% of an organic counter ion quaternary ammonium salt; 0.1 to 2 weight percent of polycation head group quaternary ammonium salt; 0.1 to 1 wt% of alkyl morpholine quaternary ammonium salt; 5-10 wt% of an emulsifier; 0.5-3 wt% of a viscosity stabilizer; 2-20 wt% of a cosolvent; 0.1 to 1 wt% of an aromatic agent; 0.1 to 0.5 wt% of a pH conditioning agent; 0-0.1 wt% of a pigment; and the balance water. The obtained fabric softener has good stability at low temperature and normal temperature, the treated fabric has excellent fabric softness, antistatic property, smoothness and antibacterial property and is not prone to yellowing, and the rewettability of the fabric is greatly improved.

The invention belongs to the technical field of polyurethane coatings, and provides a cellulose nanocrystal enhanced heat-insulating bio-based polyurethane coating and a preparation method thereof, according to the coating, porous cellulose nanocrystals are introduced, and a silicon dioxide film is deposited on the surfaces of the porous cellulose nanocrystals, so that the heat-insulating property, weather resistance and mechanical property of the material are remarkably improved. The castor oil adopted as a bio-based raw material has the advantages of being renewable and environmentally friendly, and the defects of a traditional petroleum-based polyurethane material in the aspects of environmental protection and resource consumption are overcome. Through epoxidation treatment on castor oil, the reaction activity and hydroxyl density of the material are increased, and further fluorination and silanization modification are performed, so that the hydrophobicity, chemical stability and surface energy reduction effect of the coating are effectively improved; the prepared bio-based polyurethane coating has excellent mechanical properties, long-acting weather resistance and an excellent heat reflection effect.

The invention discloses a super-hydrophobic metal organic framework composite material and a preparation method and application thereof, and the preparation method comprises the following steps: mixing an amino-modified ZIF material with polylactic acid with the number-average molecular weight of 1.0 * 105 g / mol to 2.5 * 105 g / mol, and carrying out amidation reaction to obtain the super-hydrophobic metal organic framework composite material. In the invention, the amino-modified ZIF material is modified by polylactic acid, so that the super-hydrophobic metal-organic framework composite material which is low in cost, good in hydrophobicity, good in stability, green and environment-friendly can be prepared, and the super-hydrophobic metal-organic framework composite material can be widely applied to wastewater treatment, air purification and sensor preparation; the method has potential application in the aspects of solving the greenhouse effect, industrial gas adsorption and separation, oil-water separation and the like, and has a good application prospect. The preparation method also has the advantages of simple process, convenience in operation, mild preparation conditions and the like, is suitable for large-scale preparation, and is convenient for industrial application.

The invention discloses a biodegradable composite polylactic acid packaging bag and a preparation method thereof, belongs to the technical field of biodegradable materials, and aims to solve the technical problem that the mechanical property, heat resistance and biodegradation rate of a polylactic acid material in the prior art need to be further improved. The material comprises the following components in parts by weight: 90-100 parts of modified polylactic acid, 10-15 parts of modified starch, 15-20 parts of modified nanofiber, 4-8 parts of pigment and 5-7 parts of additive, and is prepared by taking the modified polylactic acid as a basic raw material, the modified starch and the modified nanofiber as reinforcing materials and the pigment and the additive as auxiliary additives. The mechanical strength and high temperature resistance of the packaging bag are effectively improved, and the biodegradability of the packaging bag is improved, so that the packaging bag better meets the requirements of express and logistics industries on biodegradable packaging materials.

The invention provides a method for synergistically removing impurities through pH regulation and complexing of ionic rare earth ore leachate, the ionic rare earth ore leachate is stirred and mixed uniformly, a plant polyphenol sulfonic acid derivative complexing agent is added, the complexing agent is prepared through sulfonation, neutralization, concentration and drying by taking gallic acid as a raw material, and the complexing agent can automatically regulate the pH value of the solution and stabilize the pH value at 5.1-5.3; under the condition, phenolic hydroxyl groups, carboxyl groups and sulfonic functional groups in complexing agent molecules preferentially form stable precipitates with impurity ions such as Al < 3 + > and Fe < 3 + > in the leachate, and the complexing effect with rare earth ions (RE < 3 + >) is weak; and after the reaction is completed, carrying out solid-liquid separation to obtain the purified leachate and impurity-containing precipitation slag. The method solves the problem of ammonia nitrogen pollution caused by use of ammonium bicarbonate, ammonia water and other ammonium salts in the traditional process, is a novel method with high impurity removal rate, simple process flow and environmental friendliness, and is suitable for industrial application.

The invention relates to the technical field of aluminum material processing oil, and particularly discloses an environment-friendly residue-free aluminum material processing oil composition and a preparation method thereof. The environment-friendly residue-free aluminum product processing oil composition is prepared from the following raw materials in parts by weight: 60 to 100 parts of polyglycol ether, 2 to 17 parts of synthetic ester, 0.5 to 2.5 parts of antioxidant, 0.1 to 0.5 part of metal corrosion inhibitor and 0.1 to 3 parts of tackifier. The synthetic ester comprises star-shaped complex ester, and the star-shaped complex ester comprises the following raw materials: pentaerythritol, oleic acid, phenylphosphonic acid and boric acid. The environment-friendly residue-free aluminum product processing oil composition disclosed by the invention can be used for forming and processing aluminum products, can effectively inhibit oxidation caused by factors such as high-temperature friction heat and metal catalysis in a cyclic heating process under heavy-load and high-temperature working conditions, can realize almost no residue after aluminum product post-treatment at 540 DEG C, ensures that the surfaces of the aluminum products are bright and free of discoloration, and has the advantages of simple process, low cost and the like. And the subsequent cleaning procedure is omitted.

The invention relates to the technical field, in particular to a high-salt organic wastewater degradation composite catalyst. According to the technical scheme, the method comprises the steps of carrier selection, catalyst preparation and catalyst characterization and performance evaluation, the carrier selection comprises the steps of selecting a carrier aluminum oxide with high specific surface area, good pore structure and high chemical stability according to the characteristics of the high-salinity organic wastewater, and fixing metal ions on the carrier through catalyst preparation, and carrying out physicochemical property characterization on the prepared composite catalyst in a catalyst characterization mode, analyzing the chemical state of active components of the catalyst, and evaluating the catalyst through the performance evaluation. Through research and development of the high-salt organic wastewater degradation composite catalyst, the wastewater treatment efficiency can be improved, the cost can be reduced, resource recovery can be promoted, and the environment can be protected.

The invention belongs to the technical field of adhesives, and particularly discloses a full-biodegradable corrugated board adhesive and a preparation method thereof. The preparation method of the adhesive comprises the following steps: preparing surface saccharification straw slurry; preparing starch glue from water, starch, redispersible latex powder, polyvinyl alcohol powder and caustic soda flakes; uniformly mixing starch glue and the surface saccharified straw slurry, stirring and defoaming; and adding borax to adjust the viscosity to obtain the full-biodegradable corrugated board adhesive. According to the adhesive, surface-saccharified straw fine powder is introduced into a starch glue system, the surface-saccharified straw fine powder has certain adhesion, excellent adsorbability, good fluidity and easiness in coating, and while the adhesion is assisted, the fine straw is of a fiber structure and has rich micropores, so that the viscosity stability can be maintained; the usage amount of borax is reduced. And water in the adhesive is prevented from being excessively adsorbed and permeated by coarse pores of the corrugated peaks, so that the high-speed corrugated production is more stable, and the surface paper is prevented from penetrating through the bottom, warping and wrinkling. The preparation process is simple and easy to control, can be prepared at any time, and can also be prepared in advance for long-term storage and use.

The invention relates to the technical field of air purification, in particular to an integrated pulsed plasma bio-coupling deodorization device and a purification system.The device comprises an integrated box body which comprises a box body, an air inlet and an air outlet, and the air inlet and the air outlet are formed in the box body; the pulsed plasma reaction area is arranged on one side, close to the air inlet, in the integrated box body; the pulse plasma reaction zone comprises a pulse plasma reaction assembly, an air inlet duct and a narrow pulse power supply assembly; the biological reaction area is arranged on one side, close to the exhaust port, in the integrated box body. According to the integrated pulsed plasma biological coupling deodorization device provided by the invention, the pulsed plasma reaction area, the washing reaction area and the biological reaction area are integrated in the integrated box body, so that the occupied space is small, complex organic molecules are decomposed into smaller molecules which are easier to biodegrade through pulsed plasma deodorization, and the deodorization effect is good. Further, deep deodorization is performed under the deodorization action of the washing filler and the biological filler, so that the biological filtration efficiency is improved, and the deodorization effect is improved.

The invention relates to the field of food processing, in particular to a lutein yeast microcapsule and a preparation method thereof. According to the preparation method of the lutein yeast microcapsule, the embedding rate of the yeast microcapsule prepared by utilizing the preparation method provided by the invention reaches 87.5% or above, and compared with the prior art, a better effect is achieved. According to the method, freeze drying serves as a non-thermal processing technology, the freeze drying technology can reduce the biological activity loss of encapsulated substances in the processing process, liquid microcapsule particles can be converted into solid microcapsule particles through the freeze drying method, the product characters are changed, transportation and storage are facilitated, and meanwhile the requirements of consumers are met. The freeze-drying technology can greatly retain the nutritional ingredients of the materials, the dried product has the characteristics of low water content, good rehydration property, light weight and the like, the storage period can be prolonged, and the transportation is convenient.

The present application provides a kind of herbal shoe pad and its preparation method and application, the preparation method includes the following steps: herbal raw material is crushed to obtain herbal short hair, then mixed with chemical fiber, by air laying to obtain cotton-like mixture, then the upper and lower surfaces of cotton-like mixture are attached with non-woven fabric, and the herbal shoe pad is obtained after heat bonding.The herbal shoe pad provided by the present application can make the shoe pad more environmentally friendly in an industrial mass production mode, while also achieving the use of raw herbal state to absorb foot sweat, decompose and dilute odor, achieve uniform structure, controllable thickness, wear-resistant and usable through air laying and heat bonding, and have the characteristics of original ecology, high adsorption and easy degradation.

The invention provides an acylthiourea and polyethylene polyamine condensation compound, a phosphorus-free corrosion and scale inhibitor and a preparation method, and relates to the technical field of industrial water treatment.The acylthiourea and polyethylene polyamine condensation compound contains amide, amino and other polar groups, the electrostatic attraction force and the chelation process of the acylthiourea and polyethylene polyamine condensation compound and zinc ions and calcium ions in water are enhanced, the scale inhibition efficiency is improved, and the corrosion and scale inhibitor has the advantages of being environmentally friendly and free of pollution. The phosphorus-containing corrosion and scale inhibitor has the effect similar to that of phosphorus, can achieve the effect similar to that of a phosphorus-containing corrosion and scale inhibitor through compounding and synergism with other raw materials, can completely replace phosphorus, and meets the environment-friendly requirement; the phosphorus-free corrosion and scale inhibitor provided by the invention does not contain phosphorus, causes little pollution to the environment after being discharged and is easy to biodegrade in a water body, and in the corrosion and scale inhibitor provided by the invention, all the components have a synergistic effect, so that stable storage of the product can be ensured, and the product also can be ensured to have good corrosion and scale inhibition performance; and a new thought is developed for development, design and application of non-phosphorus products.

The invention relates to the technical field of oilfield exploitation, and provides a rare earth complex trace element tracer agent for oilfield development. The method comprises the following steps: firstly, preparing a complexing agent aqueous solution, and dissolving a selected complexing agent in a proper amount of water to obtain the complexing agent aqueous solution; preparing a rare earth salt aqueous solution, reacting the rare earth element powder with dilute acid to generate rare earth salt precipitate, extracting the rare earth salt precipitate, performing evaporative crystallization, drying and crushing to obtain rare earth salt powder, and dissolving the rare earth salt powder in a proper amount of water to obtain the rare earth salt aqueous solution; and then adding the rare earth salt aqueous solution into the complexing agent aqueous solution, placing the mixed solution in a water bath at the constant temperature of 90 DEG C, uniformly stirring, continuously carrying out complexing reaction for 3 hours, crystallizing, crushing and drying to obtain the rare earth complex trace element tracer agent.

The application belongs to the technical field of biological control, and specifically discloses a biological control agent for preventing and treating clubroot, and specifically provides application of L-methyll pyroglutamate in any one of inhibiting clubroot spores, preparing a preparation for inhibiting clubroot spores, preventing and treating plant clubroot, and preparing a biological control agent for preventing and treating plant clubroot. The application is verified by experiments that L-methyll pyroglutamate is effective on both dormant spores and activated spores, solves the problem that existing agents are difficult to kill dormant spores, thereby inhibits clubroot, through potting experiments, the application significantly reduces the incidence and disease index of clubroot, and has good prevention and treatment effects. In addition, L-methyll pyroglutamate is a potential natural product derivative, is easy to biodegrade, is safe to non-target organisms, has no chemical pesticide residue problem, and meets the requirements of green agriculture and sustainable development.

This invention relates to the technical field of fire extinguishing agents, and in particular to a fluorine-free foam fire extinguishing agent and its preparation method. By weight percentage, it comprises the following components: 5-15% natural surfactant, 7-10% hydrocarbon surfactant, 0.5-0.7% stabilizer, 3-8% co-solvent, 10-15% antifreeze agent, and the balance being water. The natural surfactant is Sapindus mukorossi saponin, and the hydrocarbon surfactant is a combination of sodium dodecyl sulfate and cocamidopropyl betaine. The use of Sapindus mukorossi saponin, when combined with the hydrocarbon surfactant, significantly reduces the surface tension of the fire extinguishing agent, improving the spreadability and stability of the foam. By optimizing the ratio of stabilizer and co-solvent, the foam's exudation time and anti-burning time are both extended, superior to commercially available products. All components are free of fluorocarbons, readily biodegradable, and environmentally friendly.

The invention discloses an effervescent tablet dry-mixing and direct-pressing technology, and relates to the technical field of effervescent tablets, the effervescent tablet dry-mixing and direct-pressing technology comprises the following steps: screening: screening citric acid, sodium bicarbonate, sodium carbonate, sorbitol and lactose according to a specific particle size requirement to obtain a screened material; mixing: mixing the sieved material with the composition to obtain a mixture, and adding a biodegradable lubricant to obtain total mixed powder; tabletting: adding the total mixed powder into a mold, and adjusting a tablet weight preset value of a tablet press to obtain the effervescent tablets; and inspection: inspecting the effervescent tablets, and removing unqualified effervescent tablets. According to the invention, through the dry mixing and direct pressing process, the steps of soft material preparation, granulation, drying and granule finishing in the traditional effervescent tablet production are simplified, the production period is shortened, the production efficiency is improved, and secondly, due to the simplification of the process, the dependence on equipment and the waste in the production process are reduced, so that the overall production cost is reduced.

The invention discloses a composite essential oil yeast microcapsule based on quorum sensing and application thereof.The composite essential oil yeast microcapsule takes composite essential oil formed by compounding thyme and citral according to the volume ratio of 3: (1-3) as a core material, has a synergistic bacteriostatic effect on meat-derived specific putrefying bacteria pseudomonas fluorescens, takes yeast cell walls as a wall material, and has a synergistic bacteriostatic effect on meat-derived specific putrefying bacteria pseudomonas fluorescens; the lasting stability of the essential oil is ensured; the composite essential oil yeast microcapsule is prepared by mixing the composite essential oil microcapsule wall material and the yeast cell microcapsule core material according to the volume ratio of 1: (1-5), the decay-causing capacity of pseudomonas fluorescens is reduced under the sub-inhibitory concentration by regulating and controlling a quorum sensing system of target cells, and the composite essential oil yeast microcapsule can be used as a green, safe and efficient fresh-keeping agent. Spoilage of the fresh conditioned meat is slowed down, and the preservation time is prolonged.

The present invention discloses a method for preparing a nutrient-loaded biochar slow-release natural polysaccharide mulch film material. Urea is loaded onto biochar by a vacuum adsorption method, and enteromorpha polysaccharide is extracted from enteromorpha by an alkali extraction and alcohol precipitation method. Then, the urea-loaded biochar is blended with enteromorpha polysaccharide / konjac glucomannan solution to obtain a film-forming liquid. The film-forming liquid is subjected to film casting and drying to obtain a nutrient-loaded biochar slow-release natural polysaccharide mulch film material. The natural polysaccharide mulch film prepared by the present invention using biochar as a fertilizer carrier has the advantages of slowing down the nutrient release rate and improving the nutrient utilization efficiency. The prepared mulch film material has low cost, simple preparation process, easy biodegradability, good environmental benefits, and can realize the high-value utilization of biomass materials such as plant polysaccharides and marine polysaccharides and the sustainable development of green agriculture.

The invention discloses a method for deactivating an active catalyst of a modified starch and cyclododecatriene (CDT) reaction liquid. The method uses starch molecules as a skeleton, and obtains a modified starch containing hydroxyl and amino groups on a molecular chain through gelatinization reaction, oxidation reaction and amino modification reaction. The modified starch is used as a quencher to deactivate the active catalytic groups in the reaction liquid, and the active catalytic groups can be removed by a simple centrifugal filtration physical operation, thereby improving the stability of the CDT product and realizing low-cost, continuous and stable operation of the device.

The invention relates to the technical field of saliva pads, in particular to a saliva pad for transesophageal ultrasound and cardiac examines.The saliva pad comprises a water absorption layer and a waterproof layer, and a preparation method of the water absorption layer comprises the steps that polyvinyl alcohol, sodium carboxymethyl cellulose, modified calcium carbonate and copper / zinc oxide modified chitosan are added into water to be mixed, spinning the spinning solution to obtain antibacterial fibers, and blending the antibacterial fibers and cotton fibers to obtain the antibacterial cotton fiber. According to the saliva pad for transesophageal ultrasound and cardiac examination, the water absorption and antibacterial property are optimized, and the defects of a traditional method in the aspect of saliva receiving and treating are effectively overcome. According to the saliva pad, the comfort level of a patient can be improved, the workload of medical staff can be reduced, the risk of cross infection can be reduced, and a safer, more comfortable and more efficient solution is provided for the field of medical examination.

The invention provides an environment-friendly total-synthesis water-based aluminum alloy cutting fluid and a preparation method thereof, and belongs to the field of cutting fluids. The cutting fluid is prepared from the following chemical components: 2.0 to 5.0 parts of diethylene glycol dimethyl ether, 0.5 to 1.5 parts of triethanolamine, 0.1 to 1.0 part of sodium chloride, 1.0 to 3.0 parts of sulfolane, 0.5 to 1.5 parts of a surfactant, 0.1 to 1.0 part of an aluminum corrosion inhibitor, 0.05 to 0.3 part of an extreme pressure agent and 85 to 96 parts of dolomite / zirconium oxide based nanofluid. The dolomite / zirconia-based nanofluid is prepared from dolomite, zirconia, quaternized sodium alginate and deionized water. The chemical components of the cutting fluid are reasonably designed, so that the lubricating performance, the cooling performance and the environment-friendly performance of the cutting fluid are improved at the same time.

The invention belongs to the technical field of cleaning agents, and particularly relates to a bio-based heavy oil stain cleaning agent and a preparation method thereof.The bio-based heavy oil stain cleaning agent is prepared from, by weight, 5-8 parts of N, N-dimethyl-9-decyl amide and 3-5 parts of isodecanol polyoxyethylene ether. N-dimethyl-9-decyl amide, isodecanol polyoxyethylene ether and hexyl D-glucoside APG06 are used as solubilizers of the cleaning agent, the purpose of efficient cleaning is achieved through the dissolution effect, the permeation effect and the emulsification effect, raw materials in the preparation components are environmentally friendly, no harm is caused to the human body and the environment when the cleaning agent is used, and the cleaning agent is environmentally friendly. The cleaning agent can be used at normal temperature, does not need to be heated and is convenient to use, MET-10U contained in the nonionic active surface agent has extremely high dissolving capacity for grease, the KB value of N, N-dimethyl-9-decenamide is larger than 1000, MET-10U is easy to biodegrade and environmentally friendly, and the bio-renewable carbon index (BCI) reaches 75%.

A hard-water-resistant high-foaming agent in the powder is formed by compounding sodium alpha-olefin sulfonate and sodium dodecyl benzene sulfonate, sodium bicarbonate and sodium oxalate are used as chelating agents, a film-forming agent is prepared by taking modified alkyd hydroxyethyl cellulose and polyvinyl alcohol (PVA) 2488 as main materials, and a preservative sodium benzoate is supplemented, so that the water-soluble bubble powder is prepared. The foam film enhancer is sodium polyacrylate, the antioxidant is composed of a polyethylene glycol 638 type active agent, 6502 type alkylolamide is used as a tackifier, and the colorful foam booster is mixed with glucose synthetic glycoside. The water-soluble bubble powder disclosed by the invention can be used for blowing bubbles with large diameters, has a relatively large bubble amount and relatively long bubble floating duration, can fill the blank of domestic and overseas markets at present, and has the characteristics of safety, environment friendliness, simplicity and convenience in use and convenience in transportation.

The present application belongs to the technical field of temperature control, and particularly relates to a temperature control liquid for coal-based Fischer-Tropsch synthesis hydrocarbon as well as a preparation method and application thereof. The temperature control liquid mainly comprises coal-based Fischer-Tropsch synthesis hydrocarbon, or the temperature control liquid mainly comprises coal-based Fischer-Tropsch synthesis hydrocarbon and liquid polyolefin. The distillation range of the coal-based Fischer-Tropsch synthesis hydrocarbon is less than or equal to 350 DEG C. The main component of the coal-based Fischer-Tropsch synthesis hydrocarbon is isomeric alkanes and normal alkanes with carbon number of 12-24, wherein the isomeric alkanes account for less than 90% of the total mass, and the normal alkanes account for more than 10% of the total mass. The kinematic viscosity of the coal-based Fischer-Tropsch synthesis hydrocarbon is less than or equal to 2.5 mm 2 / s at 100 DEG C, and 2.0-6.0 mm 2 / s at 40 DEG C. The kinematic viscosity of the liquid polyolefin is less than or equal to 8.0 mm 2 / s at 100 DEG C, and 2.0-20.0 mm 2 / s at 40 DEG C. The temperature control liquid has the characteristics of low density, low electrical conductivity, low kinematic viscosity and high heat conduction efficiency.

This invention belongs to the field of metallurgy and relates to a method for recovering silver from conductive silver paste. The method includes the following steps: S1, spray drying the conductive silver paste to obtain fine silver powder, and ball milling the fine silver powder to obtain a slurry; S2, clarifying and thickening the slurry to obtain a supernatant and a slurry underflow; pressure filtering the supernatant, and returning the filtrate to the ball mill; S3, adding methanesulfonic acid to the slurry underflow for leaching, controlling the time to 10-30 minutes, to obtain a leachate; filtering the leachate, the filter residue being silver powder; returning the filtrate for further leaching, and evaporating and crystallizing the filtrate after the Ag ion concentration in the filtrate reaches saturation to obtain silver methanesulfonate. The method of this invention has selective leaching characteristics for Ag₂O and Ag, and has the advantages of simple process flow, short reaction time, and high product purity, making it highly promising for industrial application.

The invention relates to the technical field of thick oil emulsification and viscosity reduction, and discloses an emulsification and viscosity reduction agent composition, a preparation method and application thereof, and a super thick oil emulsification and viscosity reduction method, the composition comprises an anionic sulfate surfactant, an ampholytic surfactant and a solvent; the anionic sulfate surfactant has a structure as shown in a formula (1), # imgabs0 #, wherein R1 is selected from C8-C22 alkyl groups; r3 and R4 are independently selected from H or-SO3M, and at least one of R3 and R4 is-SO3M; each R2 is independently selected from H, 2-hydroxy propyl and methyl; m is selected from any one of Li, Na, K and NH4; m is selected from any integer of 1-10, n is selected from any integer of 1-10, z is selected from any integer of 0-9, and the sum of m, n and z is any integer of 5-11. The super heavy oil emulsifying and viscosity reducing agent composition has excellent emulsifying and viscosity reducing effects and good salt resistance under the condition of weak shearing.

This invention discloses a method for preparing a highly efficient, low-toxicity, and environmentally friendly geminal quaternary ammonium salt based on plant-derived linalool. The method comprises: S1, synthesis of chloroacetate; S2, preparation of a ditertiary amine; and S3, synthesis of the highly efficient, low-toxicity, and environmentally friendly geminal quaternary ammonium salt based on plant-derived linalool. Using the ditertiary amine obtained in S2, the chloroacetate obtained in S1, and a solvent, the highly efficient, low-toxicity, and environmentally friendly geminal quaternary ammonium salt based on plant-derived linalool is obtained. This invention introduces plant-derived linalool into the geminal quaternary ammonium salt structure through chemical bonding. The nitrogen ions on the geminal quaternary ammonium salt adsorbed onto the negatively charged bacterial surface, combined with the hydrophobic interaction of the plant-derived linalool, produce an excellent "adhesion-killing" highly efficient synergistic antibacterial effect, providing a new approach and technology for the high-value resource utilization of natural products.

The invention discloses a method for preparing liquid mulch and solid mulch materials by dividing black tea residue into two dual paths. First, a mixed solution of tea residue / sodium hydroxide / urea is prepared, and a filtrate and a filter residue are obtained after low temperature, ultrasound, and filtration. The filtrate portion is blended with a polyvinyl alcohol / polyethylene oxide solution in a certain proportion and then sprayed to obtain a liquid mulch; the filter residue portion is dispersed in a cellulose solution of a sodium hydroxide / urea system, and a cellulose / filter residue membrane is prepared by a phase inversion method. The membrane is then impregnated and modified by a mixed solution of sodium alginate / agar powder / glycerol and cross-linked and modified by a calcium chloride solution, and a solid mulch is obtained after drying. The invention divides into two dual paths to prepare liquid mulch and solid mulch materials respectively, and has the advantages of being pollution-free, easily biodegradable, and the degradation products can improve soil fertility and have good biocompatibility. At the same time, it realizes the high-value utilization of biomass materials such as tea residue and cellulose and the replacement of traditional mulch materials.

This invention relates to the field of industrial organic waste gas purification and treatment technology, and particularly to an anti-adhesion absorbent liquid for high-temperature waste gas spray treatment in coating processes and its preparation method. The absorbent liquid consists of the following components by volume percentage: PEG600 13.4 vol%–22.0 vol%, Tween 80 2.8 vol%–6.0 vol%, triethanolamine 0.9 vol%–2.5 vol%, an alkaline co-solvent of anhydrous Na2CO3 or NaHCO3, and deionized water as the balance; wherein the sum of the volume percentages of PEG600, Tween 80, and triethanolamine is 17.1 vol%–30.5 vol%. Under simulated spray dynamic contact conditions (oscillation at 80°C), 10 mL can completely disperse 0.5 g–1.0 g of standard simulated pollutants (a mixture of benzoin oxide and tar solids); after absorption, the system pH ≈ 10 (sodium carbonate system) or pH ≈ 9 (sodium bicarbonate system). The absorbent of this invention comes into contact with high-temperature waste gas in the form of a spray and utilizes the high-temperature environment to enhance the dissolution and absorption effect. Even after gradual cooling, the system can still maintain uniformity and stability, without precipitation, stickiness, or adhesion to the wall, thus inhibiting adhesion and blockage from the source.