64results about How to "Avoid pungent odors" patented technology

The invention relates to the technical field of preparation of aqueous adhesive and discloses a preparation method of acrylic ester oligomer chemical modified aqueous polyurethane pressure-sensitive adhesive. The preparation method comprises the following steps of: making hydroxyl monomers, a hydrophilic chain extender and polyisocyanate which are mainly used as man raw materials react to generate a prepolymer; adding an acrylic ester oligomer and making the acrylic ester oligomer and polyurethane prepolymer properly grafted; carrying out multiple modification through a cross-linking agent; and finally, carrying out water emulsification to obtain the acrylic ester oligomer modified aqueous polyurethane pressure-sensitive adhesive. In the invention, the acrylic ester oligomer is introducedinto the polyurethane system, and good characteristics of aqueous polyurethane and polyacrylic ester are integrated. Compared with solvent-based pressure-sensitive adhesive, water is used as a solvent in the invention, the usage amount of organic solvents is small so that the requirement of clean production processes are met, and the low temperature resistance is greatly improved. The synthesizedacrylic ester oligomer chemical modified aqueous polyurethane pressure-sensitive adhesive has more excellent mechanical property, strong bonding capacity, good film forming property and stable emulsion.

The invention provides an epoxy group end-capped polysulfide polymer as shown in a general formula (I), a preparation method thereof and application of the epoxy group end-capped polysulfide polymer as an epoxy resin adhesive toughening agent. The invention also provides an epoxy resin adhesive which contains the epoxy group end-capped polysulfide polymer. The epoxy group end-capped polysulfide polymer provided by the invention contains an epoxy group end group and a polysulfide bond, is capable of increasing the curing speed of an adhesive and enhancing the properties, namely impact resistance, fracture toughness, oil resistance and the like, of a cured material obtained after curing when used for the epoxy resin adhesive, and prevents the pungent smell brought by sulfhydryl. The epoxy resin adhesive provided by the invention has the advantages of no special smell in preparation and usage processes after the adhesive is cured, good product properties, no pollution on the environment and suitability for large-scale industrialized production.

The invention discloses an ultraviolet light LED laundry ball. The ultraviolet light LED laundry ball comprises a laundry ball body, multiple light-transmittance small holes with interiors and exteriors connected, a magnetic induction coil, a rectification circuit, several ultraviolet LEDs, multiple natural magnets and silica glass. The laundry ball body serves as a main body of a novel soft and transparent PVC material. Multiple LED light-transmittance small holes are distributed in the ball body and used for fixing the ultraviolet LEDs and assisting in light transmission. Friction protrusions with different sizes are arranged on the outer spherical face of the ball body. According to the efficiency of killing germs and viruses by ultraviolet light with different wavelengths, the ultraviolet light with the wavelength of 200-280 nm is finally selected, and since the penetrating capability of the light rays of the wavelength is weak, the LED light-transmittance small holes are adopted for fixing the ultraviolet LEDs and assisting in ultraviolet light transmission. A power supply device shakes to generate power, and the defect that batteries of laundry balls are not easy to replace is overcome. The natural magnets can magnetize water current, and inhibit the growth of the germs and viruses in water. The laundry ball has a good laundry effect and a capability of efficient disinfection and sterilization.

The invention discloses an anti-dropping hair growth shampoo and a preparation method thereof. The anti-dropping hair growth shampoo is prepared from, by weight, 80-85 parts of shampoo substrate and 15-20 parts of anti-dropping hair growth lotion, wherein the anti-dropping hair growth lotion is prepared from, by weight, 70-80 parts of fresh ginger-moutan bark extractive lipidosome suspension and 20-30 parts of astragalus membranaceus extractive lipidosome suspension. The anti-dropping hair growth lotion is also prepared from, by weight, 0.01-0.1 part of alpha-cyanogroup-4-p-hydroxyl ethyl cinnamate. The anti-dropping hair growth shampoo has the advantages of having good stability, good detergency, capable of effectively preventing hair loss and inducing and promoting hair growth, having amild formula, having no irritation on scalp, and being suitable for long-term use.

The invention relates to the field of cutting fluid for machining, in particular to synthetic ester environment-friendly type aluminum alloy cutting emulsified oil and a preparing method thereof. The synthetic ester environment-friendly type aluminum alloy cutting emulsified oil is prepared from, by weight, 20-30 g of base oil, 10-22 g of high-temperature resistance synthetic ester, 10-30 g of high-saponification value synthetic ester, 4-8 g of a first anti-rusting agent, 2-4 g of a second anti-rusting agent, 4-12 g of an emulsifying agent with the HLB value higher than or equal to 10, 6-16 g of an emulsifying agent with the HLB value lower than or equal to 6, 1-3 g of an emulsion multifunctional assistant, 1-3 g of an aluminum alloy corrosion inhibiting agent, 2-6 g of a coupling agent and 1-3 g of a sterilizing agent.

The invention discloses a DNA silver staining method. The method comprises the following steps: (1) cutting off power supply after finishing electrophoresis, pouring a buffer solution out from an electrophoresis tank, then taking off a gel plate, putting the rubber plate into a porcelain dish filled with distilled water, and rinsing the gel plate by the distilled water for 2 to 3 times; (2) carrying out silver staining: adding a staining agent to carry out silver staining, shaking ceaselessly, staining for 8 to 12 minutes, and then rinsing by the distilled water for 2 to 3 times; (3) carrying out developing: adding a developing agent to carry out color development, shaking ceaselessly, and developing for 8 to 12 min; (4) rinsing by the distilled water for 2 to 3 times; and (5) carrying out gel shooting: spreading gelatin onto a X-ray film viewer to take a photo. The method integrates the fixing step and the staining step, adopts ethanol to fix, and overcomes the defects that the belt color is lighter when acetic acid is used for fixing, and the acetic acid has penetrating odor, causticity and so on in the prior sliver staining method. Additionally, the method does not need use ethanol and/ or acetic acid to stop developing color, omits the color development stopping step, and solves the problems of penetrating odor and causticity brought by the acetic acid and the like.

The invention discloses a modified ABS bamboo consumable for 3D printing. The consumable is prepared from the following raw materials in percentage by weight: 10 to 22 percent of bamboo fiber, 60 to 77 percent of ABS plastic, 1 to 2 percent of coupling agent, 0.5 to 1 percent of hollow microsphere, 0.5 to 1 percent of lubricant, 1 to 2 percent of antioxidant, 2 to 2.5 percent of toughening agent, 5 to 9.3 percent of plasticizer, and 1 to 2 percent of compatilizer. The raw materials are co-blended and granulated through a dual-screw extruder, and particles are prepared into wires which are 1.75+/-0.05mm in diameters through a 3D printing consumable extruder. The prepared 3D printing consumable is applied to a 3D printing fused deposition technology, an obtained model has the fragrance and hand feel of natural bamboo and can be enhanced by 5 to 20 percent in strength, edge warping is prevented during printing, and a 3D printed workpiece has higher quality.

The invention discloses a water conservancy project sludge clearing vehicle with the classifying function. The water conservancy project sludge clearing vehicle comprises a vehicle body and a vehicle head, wherein two front wheels are symmetrically arranged at the lower end of the vehicle head; a plurality of rear wheels are symmetrically arranged at the lower end of the vehicle body at equal intervals; a compartment is arranged between the vehicle body and the vehicle head; two sides of the compartment are fixedly connected with the vehicle head and the vehicle body through fixing parts; a water collecting box is arranged in the compartment; the lower end of the water collecting box communicates with a second water outlet pipe; one end of the second water outlet pipe penetrates through the compartment and extends out of the compartment; a second electromagnetic valve is arranged in the second water outlet pipe; a treatment box is fixed on the inner wall of the vehicle body; and the side, far away from the compartment, of the treatment box communicates with a first mud pumping pipe. The water conservancy project sludge clearing vehicle is simple to operate, overcomes the defect caused by transportation of sludge through manual operation or mechanical operation of a pump, conveniently and rapidly clears sludge and selectively treats sludge to maximize the resource utilization rate.

The invention relates to oil, grease or wax for post treatment of concrete, in particular to a concrete impermeable sealant. The concrete impermeable sealant is formed by stirring 62 to 67 mass percent of lithium-based grease, 31 to 36 mass percent of admixture and the balance of engine oil uniformly, wherein the lithium-based grease is formed by mixing and thickening 9 to 13 mass percent of 1,2-hydroxy lithium stearate, 0.5 mass percent of diphenylamine, 0.5 mass percent of petroleum barium sulfonate and the balance of mineral oil; and the admixture is selected from fly ash, coal gangue powder and cement powder, and the granule diameter of the powder is less than 0.9 millimeter. The concrete impermeable sealant is convenient to manufacture and use, is simple in operation, time-saving and labor-saving, has good sealing property, has no harm to the human body, and is environmentally-friendly.

The invention belongs to a method used for improving the smell of automobile instrument boards. The method comprises following steps: a slush moulding system is used for providing PVC surfaces, wherein the slush moulding system is provided with a plurality of heating boxes, and 210 to 230 DEG C waste gas is exhausted by the heating boxes; the exhausted waste gas is divided into 80 to 100 DEG C lowtemperature gas flow and 130 to 150 DEG C high temperature gas flow; the low temperature gas flow is introduced into a baking box, the temperature of the baking box is increased to 60 to 120 DEG C through combination of the self heating capacity of the baking box, the PVC surfaces are introduced into the baking box for 2 to 6h of baking using the low temperature gas flow. According to the method,waste gas heat energy from slush moulding technology is recycled for baking of the demoulded PVC surfaces, so that harmful substances left in the PVC surfaces are released at high temperature states,so that the smell of automobile instrument board PVC surfaces can be improved reliably, and reduction of the quality of air in automobiles caused by the pungent smell of the PVC surfaces in using isavoided.

The invention discloses cold rolling oil with high lubricity and less odor. The cold rolling oil mainly comprises, by mass, 40-90% of high-viscosity lubricating synthetic ester, 0.5-2.5% of surfactants, 0.2-2% of anti-rust agents, 2.0-6.5% of anti-wear agents at extreme pressure, 0.5-1.5% of anti-oxidation additives and the balance of deep refined mineral oil. The high-viscosity lubricating synthetic ester is synthetic ester having the kinematic viscosity of 80 mm<2>/s<-1> or above at 40 DEG C. The cold rolling oil has the advantages that the odor of emulsions for cold rolling units can be effectively controlled from the source for a long term, and reduction of the lubricity of the production process can be avoided.

The invention relates to a preparation method of high-grade road emulsified asphalt. The method adopts the technical scheme that the method comprises the steps: catalytic cracking heavy residual oil is heated to be 120-160 DEG C in a heating furnace and then fed into a stirring kettle; a diluent, namely acetone or tetrahydrofuran is added according to the fact that the ratio of the catalytic cracking heavy residual oil to the diluent is (2.5-3):100; the catalytic cracking heavy residual oil is diluted to be low-viscosity residual oil; the reaction viscosity is reduced; an emulsifier, a stabilizer, an antifreezing agent, a surfactant, the low-viscosity residual oil and water are fed into a colloid mill at a ratio; the temperature of the colloid mill is kept to be 75-90 DEG C; the high-grade road emulsified asphalt is prepared via the colloid mill. The method has the benefits that the diluent dilutes the heavy residual oil, so that the viscosity of the residual oil is reduced, the shear resistance in an emulsion process is reduced, and the reaction efficiency is improved; by virtue of the antifreezing agent, the freezing resistance is good, the long-term storage property is good, the oversize residual amount of the asphalt is less, and a pungent smell generated due to heating and volatilization of alcohol soap lye preparation process and an emulsified asphalt production process during single alcohol use; the surfactant increases a softening point of an emulsified asphalt product.

The invention discloses a dibromocyanoacetamide (C2H2ON2Br2) disinfection tablet and a preparation method thereof. The dibromocyanoacetamide disinfection tablet is prepared from the following raw materials in parts by weight: 50 parts of C2H2ON2Br2, 20 parts of sodium carbonate (Na2CO3), 8 parts of sodium benzoate and 22 parts of CMC (Carboxy Methylated Cellulose). The preparation method comprises the following steps of: adding weighed raw materials into a blending machine, blending for 1 hour at normal temperature, taking a sample so as to measure the content of effective bromine, stopping blending after the content of the effective bromine reaches 50+/-5wt%, pressure-testing some finished products, placing in cold water and observing effervescence time, sending the blended raw materials to a tablet making room for making the tablet after the blended raw materials reach the standard, and packaging to obtain the finished product of the dibromocyanoacetamide disinfection tablet. The preparation method is simple in process; and the prepared dibromocyanoacetamide disinfection tablet is a novel efficient disinfection tablet following a chlorine disinfection tablet; and by utilizing the dibromocyanoacetamide disinfection tablet, the problems of pungent smell and corrosion to metal of the chlorine disinfection tablet are solved, and bleaching properties to fabrics are reduced.

The invention discloses novel environment-friendly paint which comprises the following raw materials in parts by weight: 10-20 parts of waterborne alkyd resin, 20-30 parts of thermoplastic acrylic resin, 15-25 parts of amino resin, 8-13 parts of cobalt iso-octoate, 5-10 parts of pentaerythritol, 3-7 parts of dipropylene glycol mono butyl ether, 5-10 parts of kaolin, 4-6 parts of nanometer silver oxide, 3-12 parts of vegetable oily color paste, 6-9 parts of mica powder, 2-4 parts of zinc stearate, 5-10 parts of modified nano diatomite, 0.8-4 parts of a dispersing agent, 1-2 parts of a de-foaming agent, 2-5 parts of a thickening agent, 2-3 parts of a film-forming additive and 15-25 parts of deionized water The novel environment-friendly paint disclosed by the invention is non-toxic and odorless and free from environmental protection and can effectively eliminate the volatilization amount of organic compounds.

The invention discloses environment-friendly paint for construction and a preparation method thereof. The environment-friendly paint comprises, by weight, 50-80 parts of fatty acid modified high-viscosity short-oil alkyd resin, 35-45 parts of polyurethane resin, 15-23 parts of hydroxypropyl methacrylate, 12-36 parts of sodium salicylate, and the like. The environment-friendly paint has the advantages that the paint is free of odor, difficult to volatilize and difficult to foam and deteriorate; added nano materials can inhibit and kill bacteria and effectively prevent the paint from generating pungent smell during storage, and the paint is environmentally friendly and does not cause environment pollution and damage human bodies.

The invention provides environment-friendly paint for building doors and windows and a preparation method thereof. The paint is prepared from the following components: alcohol-soluble resin, triethanolamine, modified epoxy resin, vegetable oil color paste, calcium carbonate, titanium dioxide, aluminum oxide, hydroxypropionic acid, sodium carboxymethylcellulose, curing agents, dispersants, thickeners, environment-friendly auxiliaries and water. The environment-friendly paint prepared by the invention is non-toxic and tasteless, does not pollute the environment, can effectively eliminate the volatilization amount of an organic compound, and has good stability, the preparation method is simple, easy to operate, and is suitable for industrial large-scale popularization and production.