83 results about "Carboxycellulose" patented technology

The invention discloses a degradable non-pollution environment-friendly flying dust inhibitor and the production method thereof. The material components are carboxyl cellulose sodium 0.3-2, modified starch 0.5-3, water 95-99.2. The invention includes the following steps: two third of the water volume and the carboxyl cellulose sodium are added into a reaction kettle; the carboxyl cellulose sodium is selected from methyl cellulose sodium and ethyl cellulose sodium, and is heated to 80-100 DEG C by steaming; after the carboxyl cellulose sodium is completely dissolved, the modified starch is added into slowly, and is stirred so as to be completely dissolved. The invention is a physical novel efficient flying dust preventing technology, the coverage principle is to use active adhesive to excite the activity of the bug dust on the surface of the flying dust, and to react with the active constituent of the flying dust to produce a sticking layer. The invention firms the bug dust on the surface of the flying dust by the enhancing function of a little of additive, has certain strength, and then can achieve the purpose of preventing flying dust. The invention is a degradable non-pollution environment-friendly covering agent.

The invention relates to a method for preparing carboxycellulose by using hydrogen peroxide. The method comprises the steps of weighing 20 parts of cellulose in parts by mass, soaking in a pre-treatment solution of which the mass percentage is 5-40%, washing by using distilled water after soaking for 1-48 hours, performing suction filtration to be neutral, adding 10-80 parts of oxidant in parts by mass and a catalyst which accounts for 0.01-5% of the mass of cellulose, stirring for 0.5-96 hours by using a magnetic stirrer, performing solid-liquid separation, washing a solid product by using the distilled water until the pH value is 7.0, and baking an obtained solid sample in a baking oven at 40-80 DEG C for 4-12 hours to obtain oxidized cellulose with different oxidation degrees. The method disclosed by the invention is relatively mild in reaction condition, simple in process and high in yield, does not have special requirements for equipment technologies, is convenient for industrial application, is low in preparation cost, can not generate any harmful by-products, is green and environment-friendly, and can not cause any hazards and pollutions to the environment.

The invention relates to an edible packaging film. The prior potato starch edible packaging material is undesirable in comprehensive mechanical performance and has a moisture sensitivity problem in use. The formula of the invention uses potato starch as a base material and adopts auxiliary materials including carboxycellulose, animal gum and / or vegetable gelatin, glyceride, glycerin, vegetable oil and sucrose ester or lecithin. The manufacturing process of the packaging film comprises: weighing the base material, adding water into the base material and stirring the mixture till the base material dissolves, moisturizing the solution, adding the auxiliary materials into the solution, homogenizing the mixture, vacuum degassing the mixture, film making, continuous drying the mixture, stripping film, inspecting the film, and obtaining the finished product. The physical and mechanical performance of the edible packaging film reaches the requirements on food inner packaging materials, and the edible packaging film has high isolating and sealing performance such as oxygen resistance, damp resistance and oil resistance and dispersibility in boiling water.

The present invention relates to a new process for preparing 6-carboxy-cellulose nitrates and also to their use.

The invention discloses a high-temperature type polymer lithium ion battery and a preparation method thereof. The lithium ion battery mainly comprises a positive plate, a negative plate, a porous isolation membrane and electrolyte; the positive plate comprises lithium cobaltate, polyvinylidene fluoride, carbon nano-tube, and carbon black; the negative plate comprises synthetic graphite, sodium carboxyl cellulose, butadiene styrene rubber and carbon black; the porous isolating membrane is hybrid coated isolating membrane; the elecgtrolyte is composed of lithium salt, carbonate mixture and additives. The lithium cobaltate and the synthetic graphite have large D10 and small specific area, the side effect under the high-temperature condition can be weakened, and the battery performance is stabilized; the isolating membrane adopts the ceramic / polyvinylidene fluoride hybrid coated isolating membrane, thereby facilitating the battery molding and the thermal stability of the battery; the additive composition used by the electrolyte has the positive and negative film-forming protection functions, so that the dosage is low, the battery impedance can be reduced, and the cycle performance is convenient.

The invention discloses a method for preparing composite fibers in an ionic liquid medium. The method comprises the following steps: (1) oxidating cellulose into carboxyl cellulose in an oxidation system prepared from ionic liquid, nitric acid and NaNO2, and preparing a carboxyl cellulose solution; (2) subjecting silkworm cocoons to soda boiling, degumming, LiBr dissolving, dialysis and vacuum freeze drying so as to obtain silk fibroin, and then, preparing a silk fibroin solution in ionic liquid; (3) grafting the carboxyl cellulose to the silk fibroin in ionic liquid, thereby obtaining the composite fibers. According to the method, the ionic liquid serves as a solvent, cellulosic materials and the silkworm cocoons serve as raw materials, the chemical principle of amidation reaction is adopted, the preparation process is simple, the reaction is green, environment-friendly and pollution-free, the ionic liquid solvent can be recovered and reused through rotary-evaporation drying, and the recovery rate reaches 98%. The reaction system only needs an isothermal reaction of 1 to 2 hours, the percentage of grafting of the cellulosic materials reaches 21% to the maximum, and the composite fibers are excellent in mechanical properties, crinkle resistance, wear resistance and hygroscopic property and are degradable and reproducible.

The invention relates to a biomass-based nanoparticle for rapid ion detection and a preparation method thereof. The biomass-based nanoparticle is obtained by grafting a fluorescent molecule to carboxyl cellulose nanocrystal. The biomass-based nanoparticle can be directly used for copper ion concentration detection and analysis, pH of test solution and temperature do not need to be adjusted, rapid detection can be carried out on the spot, lower detection limit is 0.1ppm, whether drinking water for a human body and sewage discharged by a factory accord with the national standard or not can be directly detected, and the biomass-based nanoparticle has the advantages of sensitivity, no toxicity, environmental friendliness, good compatibility, low cost and simple technology compared with the traditional method.

The invention discloses a high-water-resistance and weather-resistance polarizer adhesive, a polarizer and a preparation method. The adhesive comprises, by weight, 4-30 parts of polyvinyl alcohol resin, 150-195.2 parts of pure water, 0.8-20 parts of hydroxyl or carboxyl-containing cellulose resin, 1-10 parts of hydrophobic surface active agents, 0.05-1 part of coupling agents, 10-100 parts of absolute ethyl alcohol and an appropriate quantity of pH (potential of hydrogen) conditioning agents. According to the adhesive, etherification or esterification reaction of a hydroxyl / carboxyl functionalgroup of cellulose and hydroxyl in polyvinyl alcohol resin is implemented, high covalent ether or ester bonds are formed, water resistance of a polarizer is improved, a lager network structure is formed, high temperature resistance and bonding strength of the polarizer can be effectively improved, and the adhesive is an environment-friendly material, free from toxicity and irritated smell and applicable to wide application.

A high-performance capacitor plastic housing is disclosed. The plastic housing is prepared from polybutylene terephthalate, ABS plastic, a filler, a color concentrate, dibutyl sebacate, polyamide, a lubricant and an auxiliary agent. The auxiliary agent is prepared from, by weight, carboxyl cellulose, sorbitan trioleate, rosin, sodium hexametaphosphate, alkali lignin, acrylamide, diatomite, sodium tripolyphosphate, methyl salicylate, tea seed oil and mint oil. The plastic housing has characteristics of good mechanical properties, good processing performance, a low cost, a low melt viscosity, high impact strength, good thermal aging resistance and excellent thermal stability.

The invention provides a formulation for the raw materials of a steel slag tripping agent, which comprises a predetermined amounts of dolomite, alta-mud, clay, tripolyphosphate, silicon micronized quartz powder, sodium carboxymethylcellulose, graphite and boric acid, the agent can be used for the realization of one time slag-peeling of the slag pots at high and low temperature.

The invention discloses a method for grafting anhydride onto a cellulosic material in ionic liquid to prepare carboxyl cellulose. The method includes the following steps that an ionic-liquid cellulosic solution and an ionic-liquid anhydride solution are respectively prepared; the anhydride solution and the cellulosic solution are mixed to be subjected to a constant-temperature reaction, and the carboxyl cellulose is prepared. According to the method, the ionic liquid serves as an activating agent and a solvent; as a cellulose anhydride-grafted method is adopted, the reaction condition is moderate and easy to control, and the reaction is environmentally friendly and free of pollution; the ionic liquid solvent can be recycled through rotary evaporation and drying, and the recycling rate is as high as 98%. According to the reaction system, the grafting reaction only needs to be carried out for 1-2 h, the content of carboxyl in the carboxyl cellulose can be 14%-20%, and the content of the carboxyl in the carboxyl cellulose is greatly increased in a short time.

The invention discloses a cleaning agent for fins of an air conditioner. The cleaning agent for the fins of the air conditioner comprises the following compositions by parts by mass: 3 to 5 portions of 50 percent nitric acid, 1 to 2 portions of 75 percent citric acid, 1 to 2 portions of 65 percent oxalic acid, 6 to 24 portions of methenamine, 10 to 45 portions of aniline, 3 portions of alkyl polyglycoside, 2 to 4 portions of alkyl polyoxyethylene ether, 1 to 3 portions of linear alkyl sulfonate, 20 to 45 portions of carboxymethylcellulose sodium, and 3000 portions of water. When the cleaning agent is used to clean fins of the air conditioner, the fins are cleaned by a spray method, and cleanliness reaches over 99 percent in only 1 to 2 minutes. The cleaning agent has the advantages simple preparation process, low production cost, fast cleaning speed, high efficiency, no acid fume, safe and reliable use and no corrosion to a copper pipe.

Disclosed herein is an improved process for the preparation of nanostructured oxidized / carboxy cellulose with high carboxy content and high yield, by subjecting non-wood, lignocellulose, sugarcane bagasse derived a-cellulose or cotton cellulose to oxidation at suitable temperature, wherein the particle shape is spherical, particle size of synthesized carboxy cellulose is in the range of 1-100 nm and degree of polymerization (DP) is in the range 50-70 Further the present invention provides pharmaceutical composition comprising of nanostructured oxidized / carboxy celluloses preferably 6-carboxy cellulose, and 2,3,6-tricarboxycellulose alone or in association with one or more pharmaceutically acceptable carrier(s) or excipient(s) for treatment of microbial infections. The carboxycelluloses were efficient in stabilizing multi-walled carbon nanotubes and single-walled carbon nanotubes in aqueous media.

The invention discloses a modified plastic shell for a capacitor. The modified plastic shell is composed of polybutylene terephthalate, ABS plastic, a filling agent, color master batch, dimethyl trimethylsilylmethylphosphonate, polyvinyl chloride resin, a lubricating agent and a modifier. The modifier is composed of, by weight, carboxycellulose, sorbitan trioleate, rosin, sodium hexametaphosphate, alkali lignin, acrylamide, kieselguhr, sodium tripolyphosphate, methyl salicylate, camellia oil and peppermint oil. The prepared capacitor plastic shell is good in mechanical performance and processability, low in cost and melt viscosity and good in shock strength and thermal aging resistance and has excellent heat stability. A small amount of the prepared modifier can achieve the increase function obviously.

The invention relates to an ozone elimination catalyst with a porous substrate as the carrier. The ozone elimination catalyst is prepared by loading a coating solution on the porous substrate. The coating solution comprises the following active ingredients by weight: 0.8-1.2 parts of stearic acid sorbitol ester, 1.6-2.4 parts of OP-10, 4.2-5.8 part of polyethylene glycol, 0.15-0.85 part of carboxymethyl cellulose sodium, 1.1-1.9 parts of polyvinyl alcohol, 3.2-4.8 parts of vinyl acetate, 90-110 parts of water, and 2-50 parts of a nano-metal oxide. The invention also provides a preparation method of the ozone elimination catalyst with the porous substrate as the carrier. The prepared catalyst has the advantages of long service life, low cost, small wind resistance, and no secondary dust.

The invention discloses a modified sodium percarbonate and its preparing process, wherein the modified sodium percarbonate comprises sodium carbonate particles and coating material formed from alkali metal chloride salt and organic film forming agent, wherein the alkali metal chloride salt employs sodium carbonate and sodium sulfate, the organic film forming agent employs carboxycellulose sodium and sodium polyacrylate.

The invention provides a hot rolled plate hydrochloric acid pickling corrosion inhibition accelerator in which the compositions and weight percentages thereof are as follows: the weight percentage of surface active agent TX-10 that is octyl phenol polyethylene glycol (10) ether is 5% to 10%, the weight percentage of carboxylic cellulose salt is 5% to 10%, and the weight percentage of stannous salt reducing agent is 80% to 90%; the weight percentage of surface active agent TX-10 that is octyl phenol polyethylene glycol (10) ether is 5% to 10%, the weight percentage of carboxylic cellulose salt is 5% to 10%, and the weight percentage of stannous salt reducing agent is 85% to 90%. The composition weight percentage concentration range of corrosion inhibition accelerator in pickling working fluid keeps between 0.5% and 1%. The hot rolled plate hydrochloric acid pickling corrosion inhibition accelerator in the invention has not only good corrosion inhibition performance but also good acceleration performance, and still has good corrosion inhibition and acceleration performances within a certain range of pickling temperature and hydrochloric acid concentration.

The present invention is sprayed detergent for air conditioner fin and its preparation. The detergent is prepared by mixing through stirring at normal temperature the mixed acid comprising hydrochloric acid, nitric acid, citric acid and oxalic acid; mixed surfactant comprising APG, AEO and LAS; urotropine, rodine, aniline and CMCNa and water. It is used to clean conditioner fin through spraying and can reach a cleanliness over 99% in 1-2 min. The detergent of the present invention has simple preparation process, low production cost, fast cleaning speed, high effect, no acid fumme, use safety and no corrosion to copper pipe.

The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the glycosylated protein, or the glycoprotein. The method incorporates lateral flow test strip or vertical flow test strip devices having negatively charged carboxyl or carboxylate groups and hydroxyboryl groups immobilized and interspersed on a solid support matrix. The solid support matrix may include derivatives of cellulose (e.g., carboxy cellulose) derivatized with carboxylic acid (e.g., carboxylate, carboxyl) groups and hydroxyboryl compounds including phenylboronic acid (e.g., phenylborate), aminophenylboronic acid, boric acid (e.g., borate), or other boronic acid (e.g., boronate) compounds. The present invention is usefi.il for monitoring glycation or glycosylation of hemoglobin or albumin for monitoring glycemic control (e.g., glycemia in diabetes).

The invention relates to the field of biopolymer materials, and particularly discloses a highly substituted carboxyl cellulose nanocrystal and a preparation method thereof. The preparation method comprises the steps: dispersing plant cellulose in deionized water, firstly oxidizing by using a TEMPO / NaClO / NaClO2 oxidation system, then carrying out ultrasonic treatment, adding periodate for oxidation, adding a sodium chloride-sodium chlorite-hydrogen peroxide multi-element oxidant, carrying out stirring reaction at room temperature, and finally carrying out heating treatment to obtain a final product. According to the method, carboxyl substitution is controlled in an amorphous region of cellulose by adopting a step-by-step oxidation method, so that the carboxylation substitution degree is improved, and then chain scission is performed on the carboxylated cellulose in the amorphous region through thermal degradation, so that the hairy cellulose nanocrystal with amorphous carboxylated cellulose at two ends is formed. The surface carboxyl content, the carboxyl substitution degree and the like of the nanocellulose crystal are remarkably improved, the operation process is simple and convenient, pollution is avoided, and large-scale popularization and production can be achieved.

The invention discloses a formula of cement slurry with high concretion rate. The formula of the cement slurry with the high concretion rate comprises cement, water, flaky superfine light-burned kaolin, sodium polyacrylate or a naphthalene sulfonic acid-formaldehyde condensate water-reducing agent and low-viscosity carboxymethyl cellulose. The concretion rate of the cement slurry prepared by the technical scheme provided by the invention can achieve 93-95%, and under the same conditions, the concretion rate can be improved by 23-25% in comparison with the cement slurry which is used currently, and the improvement rate is about 33-36%. The cement slurry can significantly improve the effects of grouting and water blocking.

The invention discloses a novel macromolecular dispersing agent for synthesization of polyvinyl chloride, and a preparation method and application thereof. The dispersing agent is acrylic macromolecular polymer emulsion containing hydrated silicon dioxide and carboxy cellulose. The dispersing agent is prepared through the following steps: firstly, polymerizing a methacrylate monomer, a methacrylic acid monomer, and a styrene acrylonitrile mixed monomer; and then adding the carboxy cellulose and the hydrated silicone dioxide to the polymerized emulsion. The dispersing agent can be used together with the prior polyvinyl chloride dispersing agent. The dispersing agent can effectively maintain the viodage and particle size of PVC structural particles, solve the problem of mutual dissolution in the processing course of PVC, reduce the processing viscosity of the PVC, and contribute to the machine shaping of materials.

The invention discloses a preparation method for a three-dimensional network structure flocculation material structured by bacterial cellulose. The preparation method comprises the steps that a bacterial cellulose material is dissolved and is modified after sodium periodate and ethylene glycol are added, and carboxyl cellulose is generated; then the three-dimensional network structure flocculation material is obtained after processing and drying; and then the three-dimensional network structure flocculation material is added into waste water to conduct a flocculation application experiment. The preparation method has the advantages that operation is easy, material sources are extensive and cost is low, and the application range is wide. According to the preparation method, the bacterial cellulose is used as a raw material of the flocculation material, so that the bio-degradable material is fully utilized and secondary pollution to the environment is reduced; and meanwhile, material-dependence on oil resources is reduced greatly. The prepared three-dimensional network structure flocculation material can be applied to waste water treatment such as industrial waste water and domestic waste water treatment, and has important economy and social environment benefits.

The present invention discloses an anti-aging composite waterproof coating material, which is prepared from the following raw materials by weight: 3.5-7.5 parts of an oligoester polyol, 1.5-2.8 parts of carboxy cellulose, 2.5-5.6 parts of a polycarboxylate type dispersant, 5-10 parts of ethylene glycol, 3.5-4.9 parts of amyl acetate, 1.5-2.8 parts of alkyl phenol polyoxyethylene ether polyoxypropylene ether, 1.2-2.4 parts of a castor oil ethylene oxide adduct and a derivative thereof, and 2.3-2.8 parts of dibutylnaphthalene sodium sulfonate. Compared with the existing waterproofing coating material, the anti-aging composite waterproof coating material of the present invention has characteristics of excellent high temperature resistance, excellent low temperature resistance and excellent sudden cold and heat change resistance, is suitable for polymer waterproof coating materials in the building industry, has good ductility and elongation at break in a wide temperature range, further has characteristics of strong adhesion, corrosion resistance, aging resistance, safety and environmental protection, and is suitable for coating on the surface of a variety of substrates.

The invention discloses a lipidated straw modified fertilizer and a preparation method thereof, relating to the technical field of conversion from straws to fertilizers. The preparation method comprises the following steps: grinding straws, mixing the ground straws with phosphate fertilizer, zinc sulfate, nickel sulfate, carboxyl cellulose sodium and water, and lipidating to obtain the lipidated straw modified fertilizer. About 600kg-1,000kg of the lipidated straw modified fertilizer is applied in each mu per year, and preferably, a proper amount of nitrogen fertilizer is applied at the same time. According to the lipidated straw modified fertilizer, the fertilizer efficiency of a plant can be improved according to the nutrients and molecular structures of the straws, and the purposes of increasing the yield of improved fertile land, reducing the consumption of chemical fertilizer, protecting environment, saving energy resources, protecting soil and enabling the plant to naturally and cyclically grow are achieved.

A kind of tyre mending leak agent belongs to chemical products, speaking concretely is that a kind of immediate mending leak chemistry product when the tyre is pricked and leaking. Aim at the defect of the like traditional product that sell in the marketplace, researching and developing a kind of new product, adopting high polymer raw material to confect water-solubility matter, replacing the traditional product; It is composed of various raw materials such as 2%'s aqueous solution from carboxyl cellulose methyl ether water solution 10%, resin water solution 10%, latex 3%, and asbestos 4% and so on. Whose characteristic is that the tyre mending leak is convenient and immediate, no eroding, the service time is long, the effect is very good. It can be broadly applied to bicycle industry.

The invention discloses a garlic oil active cleaning hand sanitizer and belongs to the field of daily washing agents.The hand sanitizer is prepared from, by weight, 45-65 parts of garlic oil, 4-8 parts of sodium carboxyl cellulose, 3-6 parts of wormwood essential oil, 2-4 parts of jasmine flower essential oil, 5-10 parts of fructus forsythiae, 5-10 parts of honeysuckle flowers, 1-2 parts of sodium chloride and 35-55 parts of tea saponin crystals.The garlic oil active cleaning hand sanitizer is safe to use, free of toxic or side effects, and capable of removing dirt on the skin of the hands, killing bacteria and relieving itching, and achieving disinfection and easing pain, and has the effects of relieving fatigue, accelerating metabolism and preventing senility on the skin.

The invention discloses a method for extracting bromelain from pineapple stems and leaves. According to the method, impurities in the extracted bromelain are completely removed through extraction twice, so that the quality of the bromelain is greatly improved, and an extraction microsphere is prepared in the extraction process. According to the extraction microsphere, carboxyl cellulose and amino-terminated silicone oil are under the action of 4-dimethylaminopyridine, so that carboxyl on the carboxyl cellulose and amino on the amino-terminated silicone oil react to form amide, further the amino-terminated silicone oil is fixed on the surface of cellulose, the cellulose has good adsorption capacity. The bromelain can be adsorbed, the amino-terminal silicone oil is further fixed on the surface of the cellulose, the amino-terminal silicone oil is a surfactant, the adsorption effect on the bromelain is further improved, and the cellulose is made into microspheres, so that the extracted microsphere can be repeatedly used, and the extraction efficiency of the bromelain is greatly improved.

The invention discloses a non-woven fabric material and application thereof. The non-woven fabric material is prepared by the following steps: S1, oxidizing cellulose to obtain 2,3-dicarboxycellulose,and carrying out condensation reaction on the 2,3-dicarboxycellulose and (4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium-terminated polyvinylpyrrolidone under the action of heating and a dehydrating agent to obtain modified cellulose A; S2, oxidizing cellulose to obtain 6-carboxyl cellulose, and performing cationic modification to obtain modified cellulose B; and S3, mixing the modified cellulose A and the modified cellulose B to obtain mixed fibers, and performing pretreatment, web forming, reinforcement and chemical finishing to obtain the product. According to the non-woven fabric material, the color absorption capacity of the color absorption fibers is improved without influencing the decontamination effect of a detergent, so that the color crossing problem in the fabric washing process is effectively prevented.

The invention discloses an environment-friendly and energy-saving protective agent for coating the surface of a positive unformed plate. The environment-friendly and energy-saving protective agent comprises nano fumed silica, a 60% polytetrafluoroethylene emulsion, carboxymethylcellulose, carboxyl cellulose, a polyester fiber, a sulfuric acid and distilled water. The invention further discloses a coating production method employing the protective agent in a roller-dipping rolling manner. The advantages of acid leaching rolling are reserved; the adverse consequences generated by an acid leaching hydraulic mode are avoided; and the protective agent has important significance in the economic benefit aspect of reducing the production cost and the social benefit aspect of reducing the lead slag and waste acid effluents.