266results about How to "Reduces pungent odors" patented technology

The invention provides a production method of a stable enhanced type solid wood profile improved by a wood carbonization and acetylation process, which belongs woodwork production technique. The production method comprises the following steps of: a, drying treatment, wherein the wood moisture content is reduced to be as low as 5.0 to 8.0 percent, the moisture content deviation in the wood thickness is less than 2.0 percent, and the wood internal residual stress is less than 2.0 percent; b, carbonizing treatment; c, acetylation treatment; and d, equalization treatment. The invention also discloses a stable enhanced type solid wood profile prepared by the production method. The solid wood profile prepared by the method is stable, has high corrosion resistance and weathering resistance, high output, long product service life and wide utilization ways, is favorable for realizing flow line production, and is convenient for industrialization.

The invention relates to a separation method of zirconium and hafnium by adopting extraction chromatography, in particular to extraction chromatography of zirconium and hafnium by employing tributylphosphate. The method comprises the following steps that: extractant-containing resin TBP is adopted to load the extraction chromatographic column; mixed solution of chlorhydric acid and nitric acid with total free acid acidity being 3.5-7.5 mol/l is adopted for eluting the extraction chromatographic column; then the obtained material is added with material liquid which is the mixed solution of chlorhydric acid and nitric acid with total free acid acidity being 3.5-7.5 mol/l; the total concentration of zirconium and hafnium is 0.05-1.5 mol/l; next, the mixed solution of chlorhydric acid and nitric acid with total free acid acidity being 4-8 mol/l is used for eluting the obtained material, until the concentration of overflowed hafnium solution is less than 0.01 g/l; then the mixed solution containing 0-1.5mol/l chlorhydric acid and nitric acid or 0-1.5mol/l chlorhydric acid solution is used for eluting, so as to get the zirconium solution containing no hafnium.

The invention relates to water-based transparent super-amphiphobic nano-paint and a preparation method and application thereof. Under the room temperature condition, hydrophilic silica nanoparticles and tetraethoxysilane or carbon tetrachloride serve as raw materials to synthesize oily nanoparticles with the concentration of 1-10 mg/mL; the oily nanoparticles and fluorocarbon resin are compounded according to the volume ratio of 1:1, a rotary evaporator is utilized for rotary evaporation for 30-60 min under the condition of a water bath at the temperature of 60-90 DEG C, and high-solid-content oily nano-paint concentrated liquor with the concentration of 20-40 mg/mL is obtained; water and surfactant are added, and the water-based transparent nano-paint with the super-amphiphobic surface is obtained. The prepared paint is soluble in water, the preparation process is simple, and the paint is suitable for large-area spraying, is high in adaptability to a base material and transparency, good in protective performance, environmentally friendly and capable of improving the working environment, and saves energy.

The invention relates to an odorless ultraviolet-curing wood lacquer and a preparation method thereof. The wood lacquer is prepared from the following components in percentage by weight: 45-65% of ultraviolet-curing resin, 10-25% of reactive monomer, 5.0-15% of talcum powder, 5.0-15% of transparent powder, 0.5-1.0% of gas-phase silicon dioxide, 1.0-5.0% of photoinitiator, 0.2-0.5% of defoaming agent, 0.2-1.0% of leveling agent and 0.2-1.2% of wetting agent. The odorless ultraviolet-curing wood lacquer does not have irritating odor before and after construction, does not contain benzene, and can be used immediately after construction; and meanwhile, the surface effect and fullness are not inferior to those of nitrocellulose dope, unsaturated paint or polyester paint.

The invention discloses a maleic anhydride grafted polypropylene material. Maleic anhydride, polypropylene and an assistant grafting monomer are grafted under the effects of an initiator and an antioxidant to obtain the maleic anhydride grafted polypropylene material. The used assistant grafting monomer can play a role of increasing the grafting ratio and inhibiting the polypropylene to be degraded, and therefore the grafting ratio is effectively increased. Meanwhile, a new initiator is introduced to reduce the pungent smell of the maleic anhydride grafted polypropylene material, and the degree of grafting reaction and the degree of copolymerization of the assistant monomer are enhanced, so that the prepared product has a high grafting ratio and low pungent smell.

The invention discloses a method for preparing an environment-friendly polyurethane adhesive for a plastic track. According to the method, polyether polyol and aromatic diisocyanate serve as raw materials, chlorinated paraffins and dibutyl phthalate serve as auxiliaries, white carbon black serves as packing, organotin serves as a catalyst, and the environment-friendly high-performance polyurethane adhesive for the plastic track is prepared through a prepolymer method. The prepared adhesive is moderate in system viscosity in the preparation process, the temperature can be controlled easily, and the adhesive is good in product quality, stable in performance and high in yield and room temperature bonding strength. After the adhesive is evenly mixed with rubber particles according to a certain proportion and compressed, a sample is very excellent in mechanical property, and the surface drying time and curing time are short. The adhesive is low in volatility, non-toxic and free of pungent smell, does not cause damage to constructors and users, is good in breathability and conforms to the environmental protection and construction requirements.

The invention discloses a formula for non-clean disinfectant with skin protection effects and a method for preparing the non-clean disinfectant. The non-clean disinfectant in the formula comprises, by weight, 0.1%-1.0% of thickening agents, 0.1%-10.0% of disinfectants, 20.0%-40.0% of solubilizing assistants, 10.0%-20.0% of inclusion agents, 0.2%-2.0% of neutralizers, 1.0%-10.0% of humectants, 1.0%-10.0% of skin protectants, 0.2%-2.0% of essence and the balance deionized water. The formula and the method have the advantages that the problem that anions and cations cannot coexist is solved, and carbomer which is an anionic thickening agent and chlorhexidine gluconate which is a cationic disinfectant can coexist in the same system; moisturizing and skin protection effects of the non-clean disinfectant are additionally realized, and accordingly the skins of the hands of users can be nourished, not only can be disinfected, but also can be protected and can be protected on the basis of disinfection; the sterilization capacity can be reinforced, antibacterial effects can be continuously realized, and accordingly infection can be prevented; pungent smell of disinfection components can be reduced, and accordingly the non-clean disinfectant smells fresh and can be easily accepted by the public; the non-clean disinfectant is portable and is convenient to use and suitable for the public, and the skins of the hands of the users can be disinfected by the aid of the non-clean disinfectant at any time in any places.

The invention specifically relates to a universal binder resin for a water-based plastic surface printing ink, a preparation method thereof and a printing ink using the binder resin, belonging to the field of printing inks. The binder resin provided by the invention is prepared through the following steps: subjecting a modified rosin resin and an amide oligopolymer to a condensation reaction so as to produce an intermediate product with a carboxyl group; allowing the intermediate product and a resin containing multiple carboxyl groups to undergo polymerization; and carrying out amination so as to obtain the water-soluble binder resin. Because of introduction of an acylamino group, the binder resin has good adhesion, luster and printing adaptability on a variety of plastic film substrates. According to the invention, the preparation method for the binder resin is simple; the prepared printing ink has good printing adaptability and is applicable to surface printing of a variety of plastic film substrates, and since water is used as a solvent, the printing ink has no irritant gas and is green and environment-friendly.

The invention discloses a cleaning-free water-soluble welding flux for lead-free welding, which comprises the following components of water-soluble modified rosin, organic acid active agent, halide active agent, nonionic surface active agent, flux and solvent deionized water. The invention also discloses a preparation method of the cleaning-free water-soluble welding flux for lead-free welding, which comprises the following steps: firstly, adding the flux and the deionized water in a reaction vessel with a stirrer according to a certain weight percentage for stirring; adding the water-soluble modified rosin according to the weight percentage in the stirring process; and secondly, adding the nonionic surface active agent, the organic acid active agent and the halide active agent for stirring continuously after dissolving the water-soluble modified rosin, and obtaining the cleaning-free water-soluble welding flux for lead-free welding after uniform stirring. The invention ensures high reliability of electronic information products, causes lead-free welding operating environment to be safe and reliable, conforms to the environmental protection requirements and saves energy resources simultaneously.

The invention relates to the technical field of tobacco preparation, in particular to a reconstituted tobacco preparation method. Lignin in tobacco stems and tobacco waste is dissolved by soda boiling, precipitated by organic acid, filtered and removed, so that the shortcoming of exposed lignin smell in combustion of traditional reconstituted tobaccos is overcome. Bagasse is mixed with filter residues without the lignin, the cell wall fiber content of reconstituted tobacco pulp is further removed, and pungent smell of the tobaccos caused by combustion of fibrous matters is relieved. The tobacco stems, the tobaccos and the bagasse are treated by microorganisms, and the fragrance of the reconstituted tobaccos is improved. In addition, rich glucose in the bagasse and amino acid generated by microbiological degradation from tofu and common yam rhizome are subjected to Maillard reaction under thermal action and generate unique tobacco aroma, the aroma of the reconstituted tobaccos is further improved, and the preparation method has a wide application prospect.

The invention provides a vegetable food based on onion and preparation thereof, the vegetable food uses onion as the basic raw material, which is further processed and matched with salt, sugar, shortening, gelling starch, oxidized starch and other supplementary materials, and then is treated with a plurality of working procedures before the final product is prepared. The food prepared by the method not only can retain nutrition compositions of onion, but also can reduce irritant odor thereof, and the product can be taken along, which is suitable for all age group people to eat.

The invention discloses a water base cleaning solution for cleaning solar battery electronic paste. The water base cleaning solution comprises, by weight, 1-30% of emulsifying agent, 1-20% of penetrating agent, 0.5-10% of detergent, 0.1-10% of chelant, 0-30% of low alcohols and balanced ultrapure water. The invention further discloses a preparation method of the water base cleaning solution. The water base cleaning solution is even and stable aqueous solution, soft in properties, high in efficiency, environment-friendly, non-toxic, free of pungent smell, free of corrosiveness on equipment device, capable of clearly washing slurry pasted on the surface of a solid, simultaneously capable of reducing volatilization speed of an organic solvent in the slurry and low in cost.

The invention discloses smoke-free micro-expansive anhydrous stemming, comprising the following components in parts by weight: 10-30 parts of corundum, 15-25 parts of alumina, 10-20 parts of silicon carbide, 10-25 parts of coke, 15-25 parts of clay, 5-10 parts of expanding agent and 15-18 parts of phenolic resin binder. The invention has the advantages that: in the stemming using process, yellow smoke is not generated, pungent smell is less, and the used phenolic resin binder has higher curing temperature and can meet the use requirements of the stemming. Because the expanding agent is added, the stemming can generate micro-expansion at the high temperature so as to fill cracks generated due to inside and outside stresses and modify the high temperature using performance of the stemming.

The invention discloses a novel plastering mortar, comprising the following components by weight percent: 40% of cement, 45% of yellow sand, 5% of heavy calcium carbonate, 3.3% of talcum powder, 0.5%of lignocellulose, 0.2% of polypropylene fiber and 6% of master batch. The master batch comprises the following components by weight percent: 1.67%-8.33% of polymaleic anhydride, 5.83%-9.17% of hydroxypropyl methyl cellulose ether, 6.67%-10% of polyvinyl alcohol, 66.67%-86.67% of limestone and 0.42-0.83% of starch ether. The novel plastering mortar has advantages of excellent comprehensive adhesive ability, less excitant odor, fewer volatile organic compounds (VOC) and the like, reaches and exceeds a performance index of the plastering mortar in the standard JG158-2004, thereby promoting the development of producing energy-saving building materials, improving the level of saving energy and protecting environment and achieving good economical benefits and social benefits.

The invention provides a bi-component polyurethane coating, and relates to the field of coating. The bi-component polyurethane coating is composed of a component A and a component B. The component A comprises, by weight, 5-10 parts of acrylic resin dispersoid, 4-6 parts of glycol ether acetate, 5-9 parts of resin containing active hydrogen, 12-15 parts of padding, 8-10 parts of chitin derivative formaldehyde removal additives, 1-4 parts of anti-settling agents, 1-3 parts of defoaming agents and 2-3 parts of dryer. The component comprises, by weight, 7-13 parts of isocyanate and 10-12 parts of toluene diisocyanate capable. The bi-component polyurethane coating can reduce harm to the environment and the human body effectively and is suitable for being widely popularized.

The invention relates to an ammonia-free and ursol-free hair dye and a preparation method thereof. The hair dye consists of a component A and a component B, wherein the component A consists of dye mixture, alkanolamine substance, water-soluble inorganic salt, acrylate copolymer and derivants thereof or fatty alcohol, acid and fat and derivants thereof, heavy metal chelate, surfactant, alcohol substance, dimethyl silicone oil, lanolin, essence and plant extract; and the component B consists of hydrogen peroxide, fatty alcohol, acid and fat and derivants thereof, surfactant, viscosity and gel appearance modifier and phosphoric acid. The hair dye is prepared by a specific method, has no ursol which is easy to cause skin sensibility and no ammonia water which has stimulation to respiratory tract and has the characteristics of no toxicity, no pungent smell, convenient use and good effect.

The invention relates to a dosing device for improving the pH value of boiler supply water, which consists of a drug storage barrel I, a drug storage barrel II, a reducing valve, an on-line instrument, a cooler, a metering pump I, a metering pump II, a plurality of stop valves and a pipeline. An opening joint pipe, a valve, reduced pressure cooling and the on-line instrument of a boiler supply water pipeline are controlled, so that the dosage concentration can be conveniently controlled, the preset best PH value range can be reached, the PH values of boiler supply water, steam and drained water can be improved and stabilized, and metal materials of a boiler and a whole water supply and return pipeline are protected from being corroded. Meanwhile, automatic dosage control can be realized, and the detection result of the pH value of the boiler supply water can be transmitted to a control room to be monitored and managed in real time.

The invention provides low-halogen rotation UV (Ultraviolet) environment-friendly ink, which comprises the following raw material components in percentage by weight: 55-75 percent of mixed resin, 5-11 percent of a mixed ultraviolet initiator, 0.05-0.5 percent of a polymerization inhibitor, 1-2 percent of a dispersing agent, 16-45 percent of a pigment, 1-3 percent of an adhesion accelerating agent, 1-3 percent of an anti-scratch wear-resistant aid and 3-8 percent of a functional filler. The invention further provides a preparation method of the low-halogen cycle UV environment-friendly ink. The low-halogen cycle UV environment-friendly ink provided by the invention is cured rapidly, is in a bright color, has soft and uniform color and luster, contributes to greatly enhancing the alcohol wiping resistance and eraser wiping resistance, and is free from halogen and heavy metals; small molecular active monomers and solvents are not used, so that volatile organic compounds (VOCs) are avoided, the irritant odor of ink is reduced greatly, and the ink is environment-friendly; and meanwhile, the ink has high flowability, high printing adaptability and high adhesion, and can be used for printing on various substrates and rotary printers.