190results about How to "Safety and environmental protection" patented technology

Aqueous dispersible fine emulsion of complete acrylic ester copolymer as oil- and water-resisting agent is prepared by: preparing complete alkyl copolymerized monomer fine emulsion dispersed uniformly, and then polymerizing without organic solvent and emulsifying to aid it. It is stable for restore or dilution, and can be used for substrate materials of fabrics, leathers or paper as waterproof and oil-proof finishing agent.

The invention discloses a phenolate lignin tackiness agent and a preparing method of the phenolate lignin tackiness agent. Under the normal pressure, phenol serves as a phenolate reagent, lignin and master and slave acid catalysts are added at a certain temperature at four to five times in sequence, the temperature is rose to 100 DEG C-130 DEG C, heat preservation reaction is carried out, cooling is carried out, basic catalysts are added, after the heat preservation reaction is carried out for a certain time, aldehydes materials are added at four times, heat preservation reaction is carried out at 80 DEG C-95 DEG C until the viscosity meets the requirement, water is added to adjust the solid content, and meanwhile rapid cooling is carried to enable the temperature to be lower than 50 DEG C, discharging is carried out, and then the phenolate lignin tackiness agent is obtained. Compared with a traditional phenolate lignin tackiness agent, the prepared phenolate lignin tackiness agent has the advantages that the replacement amount of the lignin to the phenol is as high as 50%-80%, and the cost can be reduced by about 40%. The phenolate lignin tackiness agent prepared with the method is safe, environmentally friendly, good in mobility and good in storage stability. Bamboo/wood plywood manufactured with the phenolate lignin tackiness agent has the good mechanics performance and the good hydrolytic resistance.

The invention discloses a treatment method for antibacterial and anti-ultraviolet cotton fabrics. The treatment method comprises the following steps: step 1, soaking the cotton fabrics with a nonionic surfactant; step 2, modifying the cotton fabrics with chitosan quaternary ammonium salt; step 3, dipping the cotton fabrics with antibacterial finishing liquid prepared by mixing 5-15 parts of a natural antibacterial agent composed of extracts of grape seeds, persimmon leaves, ginkgo leaves and licorice roots, 0.3-1 part of polyoxyethylene-40 hydrogenated castor oil and 1000 parts of water; step 4, soaking the cotton fabrics in a mixed aqueous solution containing 0.001-0.005mol/L of silver nitrate or silver sulfate or silver acetate and 1-3 g/L of soluble starch or hydroxyethyl cellulose to prepare the nano-silver attached antibacterial cotton fabrics. The prepared cotton fabrics not only have good antibacterial performance and anti-ultraviolet performance, but also have performance of resisting oxidation and scavenging free radicals, and have improved anti-wrinkle performance and good washing durability.

The invention discloses a safe and environment-friendly waterborne antibacterial adhesive with high performance and a preparation method thereof. The method comprises the following steps: enabling polymer polyol, a micromolecular hydrophilic chain extender, isocyanate and a solvent to make polymerization reaction in the presence of a catalyst, thus obtaining a polyurethane prepolymer; adding a neutralizer into the polyurethane prepolymer for neutralizing, and then adding water for emulsification, thus obtaining a polyurethane ionomer; adding dispersion liquid of a silver-carrying nano-clay material into the obtained polyurethane ionomer, regulating a pH value to neutral, performing shearing dispersion under the action of a high-speed dispersion machine, and removing the solvent to obtain the waterborne polyurethane antibacterial adhesive with high performance. The waterborne polyurethane is adopted as a substrate, so damage caused by a volatile organic compound (VOC) can be effectivelyavoided to obtain the safe and environment-friendly waterborne polyurethane adhesive with high performance, and the adhesive has the advantages of being safe and environmentally friendly, and free ofVOC; the mechanical property, thermal stability and antibacterial property of the obtained material far exceed that of similar modified waterborne polyurethane.

The invention discloses a water-based plastic track and a preparation method thereof. The water-based plastic track comprises an elastic layer and an antiskid layer, wherein the elastic layer is formed by mixing a polymer emulsion and white cement at mass ratio of 1.5-1.75, then adding waste rubber crumbs to the mixture, uniformly stirring the materials and then paving and curing the obtained mixture; the antiskid layer is prepared from a polymer emulsion, white cement, pigments and EPDM (Ethylene-Propylene-Diene Monomer) granules. The water-based plastic track is simple in process and low in cost, and not only has elasticity and skid resistance of a polyurethane rubber track, but also has the advantages of being non-toxic, harmless, excellent in performance, safe, environmentally-friendly and the like.

The invention discloses a safe and environment-friendly electric heating tile. The safe and environment-friendly electric heating tile comprises a tile body, a heat generating layer and a heat insulating layer; the heat generating layer and the heat insulating layer are sequentially arranged downwards from the back side of the tile body; the heat generating layer is connected with the tile body and the heat insulating layer with an adhesive. The safe and environment-friendly electric heating tile has the advantages of being safe, environmentally friendly, efficient, capable of saving energy, attractive, healthy, durable and the like; besides, the safe and environment-friendly electric heating tile is easy and fast to install, and is longer in service life, easy to maintain and convenient to replace as a common tile.

The invention relates to the technical filed of polymer materials, and concretely relates to a biomass nanocrystal coated polyolefin lithium ion battery diaphragm and a production method thereof. The diaphragm comprises a polyolefin porous membrane and a biomass nanocrystal coating layer coated at one side or two sides of the polyolefin porous membrane, so the diaphragm greatly improves the melt fracture temperature and improves the safety of lithium ion batteries.

The invention discloses a laser focus control system, an application of the laser focus control system and a laser cleaning head. The laser focus control system comprises a laser distance measuring meter, a field lens and a calculation and display unit, wherein a distance measuring laser beam sent by the laser distance measuring meter passes through the field lens, then is irradiated onto the surface of a workpiece and measures distance, the laser distance measuring meter is electrically connected with the calculation and display unit, the laser distance measuring meter and the calculation and display unit input a distance measuring result, and the calculation and display unit outputs at least one signal. The laser focus control system can monitor the defocusing distance in real time, is applicable to the field of laser cleaning, can achieve non-contact laser cleaning, particularly cleaning in narrow spaces, and can improve the cleaning quality and efficiency.

The invention relates to a tissue paper compounding hot melt adhesive which is composed of, by mass, 20-45% of APAO resin, 30-60% of tackifying resin, 2-15% of a plasticizer, 1-15% of montan wax and 0.2-0.8% of an antioxidant. The APAO resin has a propylene content of 60-75%, a glass transition temperature of -40 DEG C to -20 DEG C, and a viscosity of 3000-10000cps under a temperature of 190 DEG C. The tackifying resin is hydrogenated petroleum resin with a softening point of 60-90 DEG C. the tissue paper compounding hot melt adhesive provided by the invention does not contain water, such that no water penetrates into the tissue paper during a tissue paper production process. Therefore, tissue paper performances such as hand feeling, strength and comfortableness can be ensured, and paper quality decrease caused by water penetration can be avoided. The adhesive also has the advantages of high curing speed, excellent strippability, long exposure time, good fluidity, good safety, good environment friendliness, no toxicity, and no odor. The adhesive has a good application prospect.

The invention discloses a method for preparing nano-TiO2 nylon 66 resin and fibre having an anti-ultraviolet function, belonging to the technical field of fibre and textiles. The method disclosed by the invention comprises the following steps: injecting TiO2 suspension into a polymer melt at the outlet of a flash evaporation pump in the condensation polymerization process of nylon 66 at first, and then, carrying out post condensation polymerization of the polymer melt injected with the TiO2 suspension so as to obtain nano-TiO2 nylon 66 resin; and then, carrying out melt spinning of the nano-TiO2 nylon 66 resin so as to obtain nano-TiO2 nylon 66 fibre. The nylon 66 fibre having excellent properties and the anti-ultraviolet protection function can be manufactured from the nylon 66 resin manufactured by the invention through a POY-DTY (Polyester Pre-Oriented Yarn-Draw Texturing Yarn) spinning technology; and the fibre can be processed into high-quality clothes or costume materials having gentle lustre, soft hand feeling and comfort, good air permeability, abrasion resistance and easy rinsing property and having anti-ultraviolet and nursing functions.

A related green environment-friendly leatherware cleaning agent comprises the main active compositions in parts by weight: 6-10 parts of sodium fatty alcohol polyoxyethylene ether carboxylate, 5-9 parts of fatty acid methyl ester ethoxylates, 6-10 parts of alkylethoxyglucoside, 2-6 parts of glycerin, 0.5-3 parts of diatomite, 0.1-1.5 parts of amino silicone oil, 5-10 parts of gleditsia sinensis Lam extraction liquid, 1-10 parts of propylene glycol, 0.1-1 part of sodium lactate, 0.1-1 part of a chelating agent, and 0.01-1 part of a pH conditioning agent. The invention also relates to a preparation method of the leatherware cleaning agent. According to the leatherware cleaning agent, majority of the raw materials are extracted from animals and plants, the leatherware cleaning agent is good in biodegradability, does not contain benzene and other easily-volatile toxic solvents, is green and friendly to environment. The product is mild, good in wetabiilty and strong in leather affinity; and the leatehrware cleaning agent contains diatomite, possesses friction effect when being used to clean leatherware, is strong in detersive power, does not damage leather, and possesses advantages of being efficient for washing, convenient to use, safe and the like.

The invention discloses compound tea tree essential oil with sterilization and disinfection effects and a preparation method of the compound tea tree essential oil. The compound tea tree essential oil is prepared from the following raw materials in parts by mass: 5-12 parts of wild chrysanthemum flowers, 9-16 parts of fructus forsythia, 4-9 parts of scabrous mosla herb, 8-12 parts of lithospermum, 9-15 parts of Chinese angelica, 8-12 parts of croton, 5-10 parts of moutan bark and an appropriate amount of German chamomile essential oil, lavender essential oil, VE, rose fruit oil and tea tree essential oil. According to the compound tea tree essential oil, plant resources are sufficiently utilized, and traditional Chinese medicine extract is organically combined with the plant essential oil. Compared with chemical germicide and disinfectant, the compound tea tree essential oil is safe, environmentally friendly, pleasant in smell, and the like. A product prepared by the compound tea tree essential oil is convenient to use and wide in applicability, can be applied to sterilizing and disinfecting skin on different parts and an oral cavity of a person, and can also be used for sterilizing and disinfecting air and apparatuses.

The invention provides an environment-friendly plastic runway material and a preparation method thereof; the environment-friendly plastic runway material is made from, by weight, component A, component B and a curing agent; a mass ratio of the component A to the component B is 1:(3-5); the mass of the curing agent is 0.1-0.5% of the mass sum of the component A and component B, wherein the component A is made mainly from polyether diol, liquefied MDI, MDI and chloro-substituted methyl palmitoleate, and the component B is made mainly from polyether diol, polyether triol, MOCA, chloro-substituted methyl palmitoleate, iron chloride red, and talcum. The environment-friendly plastic runway material has the advantages of suitable elasticity, high friction, good mechanical properties, zero toxin and odor, safety and environmental friendliness; the preparation method of the environment-friendly plastic runway material has the advantages of good operational simplicity, good convenience of production and the like.

The invention relates to the technical field of paint for interior decoration, in particular to a water-based two-component coating for rail transit vehicle interiors and a preparation method thereof.The coating comprises a component A and a component B in a weight ratio of 10: 1, wherein the component A comprises water-based hydroxyl acrylic resin, water-based hydroxyl polyurethane hand feelingresin, a water-based hydroxyl organic silicon hand feeling auxiliary agent, pigment and filler, an environment-friendly flame retardant, sand streak wax, extinction powder, a water-based dispersing agent, a water-based wetting agent, a water-based defoamer, a water-based leveling agent, a water-based thickener and water, and the component B comprises water-based polyisocyanate resin and a solvent.The preparation method comprises preparation of the component A and preparation of the component B. The coating provided by the invention adopts a two-component cross-linking curing technology and ismatched with a water-based hydroxyl organic silicon hand feeling auxiliary agent, so that the hand feeling of the coating can be kept stable for a long time, the VOC content and the residual monomeramount are low, formaldehyde, benzene series and the like are not contained, and the coating is suitable for human body contact and is very suitable for interior coating of rail transit vehicles.

The invention discloses a nanofiber material for pork preservation, belonging to the technical field of food engineering and biological nano materials. The nanofiber material is prepared from catechin, copper nitrate and polyvinylpyrrolidone as raw materials. By adopting the nanofiber material disclosed by the invention, the problem that catechin is easily oxidized in practical antibacterial application is solved, and an excellent antibacterial property of the nano material is obtained. The nanofiber material disclosed by the invention has a remarkable inhibitory effect on the putrefying bacteria in the pork. The nanofiber is nontoxic, the raw materials are cheap and easily available, the preservation effect on the pork is obvious, and the nanofiber material has broad application prospects in the fields of food corrosion prevention, food packaging and biological materials.

The invention discloses an efficient and environment-friendly chromate-free passivation solution and a preparation method thereof. The efficient and environment-friendly chromate-free passivation solution comprises the following components of 35-40 g/L of molybdenum phosphate, 10-20 g/L of sodium vanadate, 8-12 g/L of sodium tungstate, 10-100 g/L of phytic acid, 3-30 g/L of tartaric acid, 5-50 g/L of gallotannic acid, 10-50 g/L of poly trimethyl ethyoxyl modified epoxy resin, 6-8 g/L of corrosion and scale inhibitor, 3-6 g/L of sealant, 10-15 g/L of film-forming agent, 0.5-3 g/L of anti-oxidant or oxidation inhibiter and 3-7 g/L of aluminium triphosphate. Through reasonable formula design, the passivation solution contains no chromium ions of any valence state, and has the characteristics of safety and environment friendliness, meanwhile, the passivation solution has the excellent passivation performance, film forming performance and rust resistance, and comprehensive and efficient corrosion resistance is given to a zinc coating. The characteristic of the low cost is achieved from the formula technology to the preparation technology, and the development and application prospects are wide.