76results about How to "Not toxic" patented technology

The invention relates to a nanometer silver aqueous solution preparation. Its components and weight percentage are: nanometer silver 0.05-1.5, the dispersant 0.5-1.5, the reducer 0.05-0.2, the stabilizer is nanometer silver 0.5-1.5, the dispersant 0.5-1.5, the reducer is 0.05-0.2, the stabilizer is 0.5-10, and the deioned water is 1000. The invention also relates the manufacturing method for above mentioned nanometer silver aqueous solution preparation, and the usage for curing man social disease, and the using method for ejecting the medicine into bladder through urethra. The reducer and stabilizer in the solution accord with the standards of America FDA or china sanitary department.

The invention discloses carbon aerogel prepared from superfine nano aerogel obtained through TEMPO (2,2,6,6-tetramethylpiperidinooxy) oxidation. The superfine nano aerogel is prepared with a TEMPO oxidation method, then, preoxidation at the high temperature is performed, and the carbon aerogel is prepared with a carbonization method under the inert gas shielding condition. Used TEMPO is an environment-friendly solvent and has high safety, and therefore, the prepared carbon aerogel cannot have toxicity and cannot corrode instrument equipment or pollute the environment. TEMPO as an oxidizing agent can be recycled, and the condition of environment pollution caused by metal ions serving as a catalyst can be avoided.

The invention relates to poly-N- isopropyl acrylamide-poly-amino acid two section copolymer and the manufacturing method. It is made from poly-N-isopropyl acrylamide that the equal molecular weight is 1000-10000. The poly-amino acid is poly-L-glutamic acid or poly-L- aspartic acid that the equal molecular weight is 1000-30000. The copolymer has double responsibility to temperature and pH in water solution. The pH responding range would alter around the content of benzyl group in poly-amino acid. And it could take biodegradation. The invention could be used as carrier that the in vivo target released to medicine and could be used as injectable intelligent responding hydrogel.

The invention discloses a two-block copolymer of poly-N-isopropyl acrylamide-polyamino acid and making method, which is characterized by the following: the number average molecular weight of poly-N-isopropyl acrylamide-polyamino acid is 1000-10000; the polyamino acid is poly-L-glutamic acid or poly-L-aspartic acid with number average molecular weight at 1000-30000; the molar percentage of amino acid carbobenzoxy is 0-90%; the invention uses hydrogen bromide or reducing method to strip benzyl through catalyzing and hydrogenating to obtain the product, which possesses double response for temperature and pH value in the solution; the copolymer can be biological decomposed to be discharged out of body through kidney directly, which can be carrier of target drug release and injectable intellectual response aquagel.

The invention discloses a flocculation sterilization difunctional grafting starch water treatment agent and a preparation method thereof. The flocculation sterilization difunctional grafting starch water treatment agent is a grafting amphoteric starch water treatment agent which is obtained by virtue of grafting copolymerization and tertiary amination reaction of anionic starch and acrylamide, and the molecular formula of the flocculation sterilization difunctional grafting starch water treatment agent is expressed as follows: (see the specifications), wherein in the grafting amphoteric starch water treatment agent, the substitution ratio of anion groups is 1 to 50 percent, the substitution ratio of cation tertiary amine salt is 5 to 70 percent, and the polyacrylamide accounts for 5 to 80 percent in the grafting amphoteric starch water treatment agent. The preparation method of the flocculation sterilization difunctional grafting starch water treatment agent comprises the following steps: (1) preparing anionic starch; (2) preparing polyacrylamide grafting cation starch; (3) preparing the flocculation sterilization difunctional grafting amphoteric starch water treatment agent. The flocculation sterilization difunctional grafting starch water treatment agent has advantages of excellent flocculation effect and good sterilization performance.

The invention discloses a settling method for a long-acting washable natural antibacterial fabric. The method comprises the following steps: (1) padding the fabric in an antibacterial essential oil liposome suspension, soaking for two times and padding for two times; (2) treating the fabric acquired in the step (1) with ultraviolet radiation under the condition of oxygen partial pressure at 0.5-0.8 Pa, wherein the scope of ultraviolet wavelength is 200-400nm, the radiation time is 30-60s, and the strength of ultraviolet radiation on the fabric surface is 80-100mW/cm<2>; and (3) adopting a natural cross-linking agent for cross-linking the fabric treated in the step (2), washing with water and then drying. According to the method disclosed by the invention, the natural antibacterial settling agent and auxiliaries are adopted, so that the use of compound chemicals is greatly reduced, the settling method is more environment-friendly, the biocompatibility of the fabric products is better, the volatility and release property of essential oil are greatly reduced, the fastness to washing and the tearing strength of the fabric are increased, and the antibacterial function of the fabric is enhanced.

The invention discloses an amphiphilic molecule hydrogel based on polyamino acid. The structural formula of the amphiphilic molecule hydrogel based on the polyamino acid is as shown in a formula I, wherein x in the formula is a natural number in the range from 4-16, and n is a natural number in the range of 10-50. A preparation method of the amphiphilic molecule hydrogel based on the polyamino acid provided by the invention and shown in the formula I comprises the following steps: (1) reacting glutamic acid with 2-(2-Methoxyethoxy)ethanol under the action of an acid catalyst so as to obtain an amino acid compound, the lateral chain of which has the 2-(2-Methoxyethoxy)ethanol; (2) reacting the amino acid compound, the lateral chain of which has the 2-(2-Methoxyethoxy)ethanol, with triphosgene so as to obtain an N-carboxyanhydride compound; and (3) carrying out ring-opening polymerization reaction on the N-carboxyanhydride compound under the triggering action of alkyl chain primary amine, thus obtaining the amphiphilic molecule hydrogel based on polyamino acid. The amphiphilic molecule hydrogel based on the polyamino acid has biocompatibility, biodegradability and other properties. Compared with other polyamino acid-based hydrogel, the amphiphilic molecule hydrogel has the advantages of low cost and easiness in realization of large-scale production and a very wide application prospect in the field of biological materials.

The invention discloses a water-soluble fullerene structure for preparing a medicine for treating fatty liver, and discloses a pharmaceutical composition and a method for treating fatty liver. Activeingredients for treating fatty liver are water-soluble fullerene, water-soluble inlaid metal fullerene, composition of the water-soluble fullerene and the water-soluble inlaid metal fullerene, and pharmaceuitical ester of above three and pharmaceutical salt of the three. The active ingredient water-soluble fullerene structure can reduce fatty vesicles in the liver, lower blood lipids, and obviously improve liver function, so that the content of alanine aminotransferase and aspartate aminotransferase tends to be normal, and the effect of treating fatty liver is highly effective. The active ingredient water-soluble fullerene structure can also regulate the level of redox in the liver.

The invention provides a woven bag flat filament which comprises mixed waste materials of PP (polypropylene) and PE (polyethylene) or PVC (polyvinyl chloride) and master batches. The master batches comprise carrier resins, fillers, dispersing agents, lubricating agents, coupling agents, toughening agents and rat-proof agents, and the rat-proof agents are mixture of capsaicin, camphor extracts andargy wormwood leaf extracts and loaded into kaolin and lignin which serve as filler components. The invention further provides a method for preparing the woven bag flat filament. The method includes the steps: master batch preparation; waste plastic treatment; batching mixing; extrusion molding; cooling; shredding; heating forming; winding. A preparation method of the master batches includes the step: loading the rat-proof agents into the kaolin and chitosan. According to the prepared woven bag flat filament, waste plastics are effectively utilized, environmental protection is facilitated, andthe prepared flat filament has good mechanical properties and rat-proof effects.

The invention provides a waste plastic woven bag ribbon-like filament which comprises raw materials including a PP (polypropylene) and PE (polyethylene) mixed waste material and a master batch, wherein the master batch comprises a carrier resin, packing, a dispersant, a moistening agent, a coupling agent, a toughening agent and a ratproof agent; the ratproof agent is a mixture of ratproof, a camphor extract and a folium artemisiae argyi extract and is supported in folium artemisiae argyi and chitosan as packing components. The invention further provides a method for preparing the woven bag ribbon-like filament from waste plastic. The method comprises the following steps: preparing the master batch, treating the waste plastic, mixing blending materials, performing extrusion molding, cooling, shredding, performing heating molding, and coiling, wherein the step of preparing the master batch comprises a step of supporting the ratproof agent in bentonite and chitosan. As waste plastic is effectively utilized, the waste plastic woven bag ribbon-like filament provided by the invention is beneficial to environmental protection, and is good in mechanical property and ratproof effect.

The invention discloses conductive paste. The conductive paste comprises the following constituents based by parts by mass: 50-70 parts of water, 5-20 parts of sodium chloride, 1-5 parts of glycerin, 5-20 parts of macromolecule substance, 1-5 parts of natural plant carbon particle, 1-5 parts of plant extract and 1-3 parts of thickening agent, wherein the plant extract is one or more of a honeylocust fruit extract, a hibiscus syriacus extract and a gleditsia sinensis extract. The conductive paste is short in effective impedance time, does not contain a substance harmful to a human body, is easy to clean and has relatively high safety performance, the added plant carbon can be used for making conductive factors uniformly distributed and effectively reducing the impedance between human skin and an electrode, and the conductive paste has excellent conductive performance.

The present invention discloses an ion exchange process for recovering tungsten from tungsten-containing diluted solution wastewater. The ion exchange process comprises: adjusting the pH value of tungsten-containing diluted solution wastewater to 3.5-5; carrying out aeration for 30-60 min by using compressed air, wherein per 200 m<3> of the tungsten-containing diluted solution wastewater is subjected to aeration by using one fan, and the gas inlet amount of each fan is 8-10 m<3>/min; after completing the aeration, filtering, wherein the obtained filtrate is a modulation liquid; and pumping the modulation liquid into a macroporous weak base anion exchange column, adsorbing tungsten, and carrying out adsorption and recovery on the tungsten adsorbed by the ion exchange column after completing the adsorbing. According to the present invention, with the process, the tungsten recovery rate can be effectively improved, arsenic, phosphorus, silicon, chlorine and other impurities in the tungsten-containing diluted solution wastewater can be subjected to a certain removal so as to substantially improve the production economic benefit of the factory.

The invention discloses a preparation method for a polyacrylonitrile-acrylic acid high-molecular material. The preparation method comprises the following steps: material weighing; dispersing; initiation; emulsification; aging; etc. Through the steps, solid binder powder is prepared, and the solid binder powder is the polyacrylonitrile-acrylic acid high-molecular material. The invention also discloses a method for applying the polyacrylonitrile-acrylic acid high-molecular material in a battery. The polyacrylonitrile-acrylic acid high-molecular material does not have toxicity harmful to people, is free of the disadvantage of poor coating property of slurry, improves stability of a negative pole piece and is applicable to preparation of high power lithium ion power battery.

A method for nonselective killing of weeds which includes providing a quantity of sodium carbonate peroxyhydrate; providing a quantity of a surfactant; mixing the surfactant and the sodium carbonate peroxyhydrate with water; providing foaming apparatus for generating a foam; generating a foam from the mixture of surfactant and sodium carbonate peroxyhydrate; and applying the foam to plants to be killed. In some forms of the present invention the ratio of sodium carbonate peroxyhydrate to water is at least one half of 1 pound per gallon of water. In still other forms of the invention the ratio of sodium carbonate peroxyhydrate to water will be less than 3 pounds per gallon of water. In still other forms of the invention the ratio of sodium carbonate peroxyhydrate to water will be about 1 pound per gallon of water.

The invention discloses a water-based nano electrostatic conductive internal wall paint which comprises the following components in parts by weight: 20-30 parts of liquid novolac epoxy resin, 15-25 parts of modified polyurethane, 5-10 parts of nano conductive powder, 1-5 parts of aluminum zinc phosphate, 2-7 parts of tetrabasic zinc yellow, 3-8 parts of titanium white, 1-7 parts of curing agent, 4-10 parts of thickener, 2-9 parts of leveling agent, 1-10 parts of defoaming agent and 25-35 parts of deionized water. The water-based nano electrostatic conductive internal wall paint has the advantages of durable and reliable conductivity, high adhesive force and excellent comprehensive properties, and is not toxic for the envelopment and human body since no organic solvent is used. The water-based nano electrostatic conductive internal wall paint is suitable for the fields of anti-electrostatic interior decoration in electronic product production workshops, explosion-proof workshops and the like.

The invention relates to an engineering constructor fatigue detection system based on a safety helmet. The engineering constructor fatigue detection system comprises a safety helmet and a detection unit, wherein a helmet brim and a fixing band are arranged on the safety helmet; the detection unit comprises a control box, a physiological acquisition module, a face acquisition module, a microprocessor, an alarm module and a transmission module. The microprocessor is arranged in the control box; wherein the control box is arranged at the upper end of the hat brim, the physiological acquisition module and the face acquisition module are both connected with the input end of the microprocessor, the output end of the microprocessor is connected with the alarm module, and the physiological acquisition module, the face acquisition module, the microprocessor and the alarm module transmit signals through the transmission module. According to the detection system provided by the invention, real-time processing of a large amount of data can be realized through the microprocessor module for physiological signal acquisition and image feature comparison of facial features of a constructor, and real-time detection of the fatigue state of the constructor is realized.

The invention discloses an antibacterial environment-friendly water-based paint. The antibacterial environment-friendly water-based paint comprises the following components in parts by weight: 25-35 parts of zinc acrylate resin, 10-20 parts of nanometer TiO2, 1-5 parts of dimethylolpropionic acid, 5-15 parts of titanium dioxide, 2-8 parts of organic silicon resin, 3-7 parts of polyoxyethylene ether, 2-9 parts of glycol, 1-10 parts of a natural antibacterial agent, 4-9 parts of a surfactant, 1-6 parts of a flatting agent, 1-5 parts of a curing agent and 20-30 parts of deionized water. The antibacterial environment-friendly water-based paint disclosed by the invention is environment-friendly and free of pollution by taking chitosan as an antibacterial component, free of toxicity to the human body and the environment, above 99% in antibacterial rate, lasting in antibacterial effect, high in adhesive force and applicable to places such as kindergartens and hospitals which have relatively high environmental requirements.