176results about How to "Non-toxic and pollution-free" patented technology

The invention provides a fly ash based geopolymer. The fly ash based geopolymer comprises a dry powder phase and water, of which the mass ratio is 20:3, wherein the dry powder phase comprises the following components in parts by weight: 60-85 parts of fly ash, 0-25 parts of silica fume, 10 parts of solid sodium silicate, 5 parts of industrially pure sodium hydroxide and 0.05-0.12 part of sodium tripolyphosphate. The fly ash based geopolymer can replace cement to prepare engineering materials such as concrete, mortar and the like, and is expected to be applied in the fields such as utilization of high-strength thermal mortar, high temperature resistant reinforcement materials, corrosion-resistant concrete structures and industrial wastes, rapid repairing materials, high-strength and high-performance materials, and the like. Meanwhile, the industrial waste fly ash can be largely and efficiently utilized; the fly ash based geopolymer has great significance on saving of resources, saving of energy sources and protecting of the environment. A preparation method of the fly ash based geopolymer is also simultaneously provided.

The invention discloses a polyaniline anti-corrosion coating for underwater or wet surfaces. The anti-corrosion coating comprises a component A and a component B in parts by weight. The component A comprises 30-60 parts of epoxy, 5-20 parts of resin modifiers, 3-10 parts of polyaniline, 0.5-5 parts of corrosion inhibitors, 1-2 parts of additives, 20-30 parts of pigment filler; The component B comprises 14-30 parts of curing agent. The preparation method comprises the following steps of adding wetting agent and dispersing agent into polyaniline to allow the surface of polyaniline to be sufficiently moistened; sequentially adding epoxy, resin modifiers, pigment filler and corrosion inhibitors, stirring and then adding polyaniline which is subjected to surface treatment, stirring, evenly dispersing, adding leveling agent and defoamers; grinding to obtain the component A having a particle size of less than 35mum; the curing agent is taken as the component B. The polyaniline anti-corrosion coating prepared by the invention is non-toxic and has no pollution on the human body and is environmentally friendly and has not only good underwater adhesion, lasting corrosion resistance, and smooth surface. The coating is flexible and elastic.

The invention relates to a quick self-drying polysaccharide substance compounded natural raw lacquer and a preparation method thereof. The polysaccharide compounded raw lacquer is prepared by adding water-soluble or acid-soluble polysaccharide and derivatives of the polysaccharide into natural raw lacquer, and uniformly dispersing, wherein the polysaccharide accounts for 0.01 to 10 mass percent of the compounded raw lacquer. The polysaccharide compounded raw lacquer can be quickly self-dried at room temperature and relative humidity of 40-100 percent, has high stability, has adhesion, flexibility and impact strength superior to those of an original raw lacquer, is poisonless and harmless to a human body, does not pollute environment, is natural and environment-friendly and can be widely applied to industry, restoration of cultural relics, and daily life of residents.

The invention provides a pressure sensor with a porous graphene foam structure. The pressure comprises electrodes and the porous graphene foam structure. Silver paste is used for connecting the porous graphene foam structure and the electrodes for improving conductivity. The electrodes are made of one selected from aluminum strip, silver wire and copper plate. The electrodes are adhered on the upper surface and the lower surface of the porous graphene foam structure through the silver paste. The invention further provides a preparation method of the pressure sensor. Compared with prior art, the pressure sensor provided by the invention has advantages of low cost, high sensitivity and large measurement range. The pressure sensor is made of a flexible material and can be used for a novel wearable device. The pressure sensor has advantages of simple preparation process, easy industrialization, high market value and high industrialization potential.

The invention discloses a functionalized environment-friendly regenerated silicone rubber and a preparation method thereof. According to the method, methyl vinyl silicone rubber vulcanized glue edgings or waste silicone rubber products are classified according to the colors; the materials are washed and dried; edgings or waste silicone rubber products with a same color are added into a rubber open mill; a roll distance is adjusted to 3-5mm, and rolling is carried out 3-6 times; the roll distance is reduced to 1-2mm; silicon micro-powder and an antistatic agent are added; a 50-70 DEG silicone rubber compound is added, and a structure controlling agent is added; a functional filling material and dimethylsilicone oil are added; sheet producing and heat treatment are carried out; the mixture is subjected to roll covering again; a vulcanizing agent bis-tert-butyl isopropylbenzene peroxide is finally added, and sheet producing is carried out. With the method provided by the invention, silicone rubber powder particle electrostatic repulsion is effectively prevented, and waste silicone rubber regeneration time is shortened by more than 50%. The process is simple, energy consumption is low, and the method is non-toxic and environment-friendly. With the method, silicone rubber products with high hardness, or electric conductivity, or flame retardant property, or thermal conductivity can be prepared through vulcanization.

The invention discloses a preservative for fruits and vegetables, which comprises the following components in percentage by mass: 5-8% of an emulsifier, 3-5% of Litsea cubeba extracts, 2-4% of star anise extracts, 2-3% of chitosan, 2-3% of calcium chloride, 1.5-3% of calcium bisulfite, 1.5-3% of calcium chlorite, 1.5-3% of anhydrous ethanol, 0.5-1% of citric acid, and the balance of distilled water. A use method of the preservative for fruits and vegetables comprises the following steps: soaking vegetables or fruits into the preservative for 5-10 minutes, taking out the vegetables or fruits out of the preservative and drying the vegetables or fruits, placing the vegetables or fruits into a preservative vessel, covering preservative films on the vegetables or fruits, and storing the vegetables or fruits under the condition of room temperature. The preservative for fruits and vegetables disclosed by the invention is excellent in properties, keeps the quality of fruits and vegetables, enhances the commodity property of fruits and vegetables, and prolongs the shelf life of fruits and vegetables; the preservative is safe, environment-friendly, non-toxic, harmless and pollution-free; the preservative is high in efficiency, and has an antibacterial effect superior to that of sodium benzoate; and the preservative is simple in machining process, moderate in cost and easy to use, and therefore, the fresh-keeping agent disclosed by the invention is an economic and ideal preservative for fruits and vegetables.

The invention discloses a gas-inflating-and-locking-integrated gas blaster. The gas-inflating-and-locking-integrated gas blaster comprises an inner tube, an inner-tube filling cavity, an ignition mechanism, an inner-tube gas inflating mechanism and an outer tube. The inner-tube filling cavity is formed in the inner tube, a first sealing inner cover and a second sealing inner cover are connected to the two ends of the inner tube in a sealed mode respectively, the outer tube is arranged on the outer layer of the inner tube, a first sealing outer cover and a second sealing outer cover are connected between the inner tube and the outer tube in a sealed mode, the ignition mechanism and the inner-tube gas inflating mechanism are installed on the first sealing inner cover or the second sealing inner cover, and an outer-tube gas inflating mechanism is installed on the first sealing outer cover or the second sealing outer cover; a sealed cavity between the inner tube and the outer tube is an outer-tube filling cavity, the inner-tube filling cavity is filled with supercritical oxygen and carbonaceous organic materials, and the outer-tube filling cavity is filled with liquid easy-to-gasify materials such as liquid carbon dioxide or liquid nitrogen. The gas-inflating-and-locking-integrated gas blaster has the advantages that the manufacturing cost is low, the mixing uniformity of reaction materials is high, the heat releasing efficiency is high, the transportation safety is good, and the blasting power is large.

The invention mainly provides a sanitizer formulation and a preparation method thereof. The sanitizer formulation comprises 6-12 parts of honeysuckle, 8-12 parts of fructus forsythiae, 6-12 parts of onion, 6-10 parts of houttuynia cordata, 8-12 parts of dandelion, 6-10 parts of radix bupleuri, 5-7 parts of hickory oil, 5-8 parts of radix isatidis, 15-22 parts of activated carbon, 6-8 parts of ginger, 5-9 parts of folium artemisiae argyi, 5-8 parts of eucalyptus leaf, 5-8 parts of radix sophorae flavescentis, 5-8 parts of glycerin, 6-10 parts of aloe, 10-15 parts of hydrogen peroxide, 3-5 partsof potassium permanganate, 8-15 parts of anhydrous alcohol, 5-15 parts of dimethyl formamide and 30-150 parts of distilled water. Honeysuckle, fructus forsythia, onion, houttuynia cordata, dandelion,radix bupleuri, radix isatidis, ginger, folium artemisiae argyi, the eucalyptus leaf, radix sophorae flavescentis and aloe which have sterilization and disinfection effect and are low in cost, easy to obtain and obvious in disinfection and sterilization effect are used as main raw materials, potassium permanganate, hydrogen peroxide and the hickory oil are used as auxiliary materials, and glycerin and dimethyl formamide are compounded, so that the prepared sanitizer formulation is higher in sterilization speed, stronger in sterilization effect, lower in sterilization concentration, nontoxic and pollution-free.

The invention discloses a preparation method of a super-high-dispersion polycarboxylate-type efficient water reducing agent. The preparation method includes the specific steps that firstly a terminal amino-based copolymerization product is prepared, then a terminal halogen-based unsaturated copolymerization product is prepared, finally the obtained terminal halogen-based unsaturated copolymerization product, an unsaturated ester monomer B, a transition metal compound and a ligand react at the temperature of 50-80 DEG C, and the super-high-dispersion polycarboxylate water reducing agent is obtained. Product performance is adjusted by controlling the molecular structure and the molecular weight on a main chain/side chain of the water reducing agent, the reaction speed is high, efficiency is high, the water reducing agent is free of toxin and pollution, and operation is simple. The prepared polycarboxylate-type water reducing agent is the super-high-dispersion polycarboxylate-type efficient water reducing agent and is stable in product performance and low in cost and particularly has an excellent slump retaining effect on stones containing mud and sand.

The invention discloses a fire-resisting polyester fiber and a method for preparing fire-resisting fibers by using the polyester fiber as a substrate and grafting compounds containing carboxy groups. The method comprises the following steps: grafting compounds containing carboxy groups and phosphorous monomers on the fiber surface of the fire-resisting polyester fiber, carrying out reaction by an irradiation grafting method, carrying out high energy electron beam or gamma ray or ultraviolet irradiation by using acrylic acid as a monomer, and then carrying out soaking treatment by using magnesium hydroxide or aluminium hydroxide solution. The invention has the advantages that the method has durable performance of molten drop resistance, non-toxicity and no pollution; the molten drop resisting fiber prepared from polyester fiber and polypropylene fiber having the function of molten drop resistance by the irradiation grafting technique can not generate molten drops during combustion, thus a second fire caused by molten drops during combustion is avoided; and the harm to the skin from the molten drops is avoided when the molten drop resisting fiber is used as clothing fabric.

The invention relates to an efficient environment-friendly concrete preservative, which comprises the following components in portion by weight: 10 to 18 portions of various benzoic acids and boric acids, 20 to 40 portions of silica fume, 20 to 35 portions of alkalis; 35 to 50 portions of ethanolamine, and 15 to 20 portions of active components. The preservative can be widely applied to various building materials, especially to concrete and cement, and is reliable in rust prevention and corrosion resistance and good in environmental indexes. The preservative has the advantages of containing no mineral oil, containing no nitrite, chromate and the like harmful to human body, adapting to compressive strength (50 MPa in general) of actual requirements, improving strength, durability and heat resistance and meeting the requirements for high-performance concrete, along with no toxicity, no stimulation, no pollution, good construction performance, high dimensional stability, less shrinkage and no cracking in the hardening process.

The invention discloses a water-base extinguishing agent, comprising hydrocarbon surfactant, stabilizing/coupling agent, chelating agent, spreading anti-burning agent, antifreeze agent, emulsifier, tackifier and water. According to the invention, inert gases are used for emission, and foam is generated by emulsification of solution and heating to cover the fire, so that the water-base extinguishing agent is most effective to put out fire of oils. The main added ingredients have no toxicity and no pollution, so that the water-base extinguishing agent is a environment-friendly extinguishing agent. The water-base extinguishing agent has the advantages of low price of the additives, easy obtainment of the additives and simple production process, and is suitable for large-scale application andextension.

The invention discloses a chitin/carbon nanotube composite adsorbent for blood perfusion and a preparation method thereof. The preparation method comprises the following steps of: by taking a natural macromolecular material chitin as a carrier, under a low-temperature stirring condition, performing freezing-unfreezing circulation so as to combine the chitin dissolved in an alkali/urea water solvent system with carbon nanotubes and form a uniform chitin/carbon nanotube composite solution, performing emulsification and thermal induction self-assembling process, thereby forming chitin/carbon nanotube composite nano fiber microspheres. The prepared microspheres have through hole canals applicable to free diffusion of bilirubin, have a good adsorption effect on combined bilirubin, and moreover are excellent in biocompatibility and blood compatibility. The composite nano fiber microspheres can be also fixed with an effective amount of high-activity ligand through covalent bonds, and the cleaning property and biocompatibility of the bilirubin of the microspheres can be further improved.

The invention discloses paper pulp of a paper logistics tray. Raw materials of the paper pulp comprise waste corrugated paper, a raw bamboo pulp board, a wood pulp board, auxiliaries and a packing material, wherein the auxiliaries comprises a AKD (Alkyl Ketene Dimer) waterproof agent, a twice-modified polyacrylamide derivative strengthening agent, a PAE (polyarylether) wet strengthening agent, formaldehyde, paranitrophenol, polyacrylamide and polyvinyl alcohol, and the packing material is calcium carbonate; the formula of the paper pulp of the paper logistics tray comprises the following components in percentage by mass: 77% to 80% of waste corrugated paper, 6% to 9% of raw bamboo pulp board, 4 % to 7% of wood pulp board, 1.2% to 2.1 % of AKD waterproof agent, 1.2% to 2.1 % of twice-modified polyacrylamide derivative strengthening agent, 0.8% to 1.5% of PAE wet strengthening agent, 0.6 to 1.2% of formaldehyde, 0.4% to 0.8 % of paranitrophenol, 1.78% to 3.67% of polyacrylamide, 0.12% to 0.28% of polyvinyl alcohol and 4 % to 7 % of calcium carbonate. The formula of the paper pulp of the paper logistics tray has the advantages of low cost, high beating efficiency, high strength of products, good moisture resistance, high permeability and little pollution to environments.

The invention provides a preparation method of high-purity vanadium pentoxide. The method comprises the following steps of preparing dissolving liquid from an ammonium metavanadate crude product; adding sodium hydroxide and sodium carbonate to the dissolving liquid, and adjusting the pH value to be 8.5-9.0; adding a purifying agent to the dissolving liquid of which the pH value is adjusted, and performing solid-liquid separation so as to obtain a filtrate; adding ammonium chloride to the filtrate to obtain ammonium metavanadate precipitation, washing the precipitation, and dehydrating the washed precipitation so as to obtain ammonium metavanadate crystals; and under 500-550 DEG C, calcining the ammonium metavanadate crystals for 2-2.5 hours so as to obtain the vanadium pentoxide. An impurity removing measure of combining a physical method with a chemical method is taken, so that impurity ions can be rapidly and effectively removed, and the purity of the finished products namely the vanadium pentoxide can be effectively improved. The preparation method is simple in technology, the consumption of used reagents is low, few impurities are introduced, and the preparation method is safe, environmental-friendly, pollution-free and low in production cost.

The invention relates to a solid-phase preparation method for beta-eucryptite powder. The preparation method comprises the following steps: 1) weighing lithium carbonate, silica and alpha-alumina according to equimolar proportion; 2) subjecting the raw materials weighed in the step 1) to grinding and mixing in a rapid grinding device; and 3) filling an alumina saggar with the raw materials ground and mixed in the step 2), placing the alumina saggar in a high-temperature furnace and carrying out calcining so as to obtain desired beta-eucryptite powder. The preparation method is simple in process, low in equipment requirement, nontoxic and pollution-free; the prepared beta-eucryptite powder has high purity; and the preparation method is suitable for batch production.

The invention relates to an SPC floor comprising the following components in parts by weight: 43.85-58.04 parts by weight of PVC resin powder, 173.51-197.42 parts by weight of rock flour, 2.17-3.51 parts by weight of a regulator, 6.8-7.95 parts by weight of a stabilizer, 0.88-1.17 parts by weight of PE wax, 1.047-1.182 parts by weight of an internal lubricant, and 0.44-0.57 part by weight of carbon black. The SPC floor has the advantages that due to toxic and odorless properties of the PVC resin powder, the prepared SPC flooring has good stability, water resistance and fire resistance, high environmental protection, no pollution, no public nuisance and recyclable utilization, and fundamentally solves the problem that wood products are easy to decay, expand and deform after absorbing waterand being affected with damp in wet and waterish environments; the SPC floor can be used in environments where a traditional wood preparation product cannot be applied and also solves the problem of formaldehyde of other decoration materials. In addition, the invention also discloses a preparation method of the SPC floor and discloses the SPC floor.

The invention discloses a detachable carpet, and belongs to the technical field of carpets. The detachable carpet comprises a base cloth layer. Waterproof layers are arranged on the top and the bottomof the base cloth layer, clamping strips are arranged on the left sides and the right sides of the top and the bottom of the base cloth layer, fixing grooves matched with the clamping strips are formed in the joints of the two sets of waterproof layers and the base cloth layer, clamping blocks are arranged on the left sides and the right sides of the two sets of waterproof layers, and clamping grooves cooperating with the clamping blocks are formed in the joints of the two sets of waterproof layers and the clamping blocks. The polyurethane layers are low in mass and environmentally friendly,and have good waterproof performance, the waterproof layers arranged on the top and the bottom of the base cloth layer can be conveniently detached and manually cleaned, the structural shapes of the waterproof layers cannot be damaged, the original use performance of the waterproof layers is kept, detaching and mounting of the waterproof layers and the base cloth layer are achieved through the cooperation of the clamping strips and the fixing grooves, and the structure can be firmly connected through the cooperation of the clamping blocks and the clamping grooves.

The invention relates to a nano barium sulfate/cellulose composite membrane with an anti-radiation function as well as a preparation method and application thereof. The nano barium sulfate/cellulose composite membrane is prepared from water body nano barium sulfate and cellulose, wherein nano barium sulfate particles of the water body nano barium sulfate are relatively uniformly dispersed on a basal body of the cellulose; the particle sizes of the nano barium sulfate particles are 30 to 280 nm; the tensile strength of the composite membrane is 24.98 to 51.07 MPa; the composite membrane is of a transparent and porous structure, and the porosity of the composite membrane is 90% or more than 90%. The nano barium sulfate/cellulose composite membrane has the advantages that firstly, the composite membrane is green and environment-friendly; secondly, the agglomeration effect of nanoparticles is reduced, and the nanoparticles are uniformly dispersed on the cellulose basal body; thirdly, the particles can be uniformly dispersed on the cellulose basal body; fourthly, the composite membrane prepared in the invention is high in transparency, large in porosity, non-toxic and non-pollution, has a lasting anti-radiation effect, and is relatively high in stability and uniform in thickness; and fifthly, the composite membrane is applicable to large-scale preparation of anti-radiation cellulose composite membranes.