50results about How to "Strong pungent smell" patented technology

The invention provides crosslinked polyvinyl chloride foam. The crosslinked polyvinyl chloride foam is prepared by foaming a polyvinyl chloride mixture, wherein the polyvinyl chloride mixture comprises 100 weight parts of polyvinyl chloride resin, 30 to 150 weight parts of isocyanate, 1 to 15 weight parts of foaming agent and 1 to 30 weight parts of compound with a structure shown as a formula (I); R1 is hydrocarbyl, substituted hydrocarbyl, ester, carbonyl, ether or acylamino; and R2 is H, fat hydrocarbyl, phenyl, nitryl, cyan or halogen. The invention also provides a preparation method for the crosslinked polyvinyl chloride foam. The preparation method comprises the following steps of: foaming and die-pressing the polyvinyl chloride mixture to obtain a foaming die-pressing substance; and performing secondary foaming and solidification on the foaming die-pressing substance in water or water vapor to obtain the crosslinked polyvinyl chloride foam. The crosslinked polyvinyl chloride foam has high dimensional stability and solvent resistance; and the preparation method is easy and convenient to operate and favorable for industrialized production.

The invention relates to a kind of catalyst that can eliminate ozone, especially photocatalytic eliminate ozone catalyst. Au is the active component of the catalyst, activity carrier is the TiO2, the mass ratio of the gold and titanium dioxide is 1:100-1: 200, the TiO2 activity carrier is powder, the average size is 5-50nm, TiO2 crystal is anatase, rutile, plate perovskite or mixed crystal. This catalyst has good performance for photocatalytic eliminate ozone, the carrier that requirements are simple, less the amount of catalyst, especially used in indoor air purification means for elimination of ozone, and the preparation is simple, cost is greatly reduced, suitable for industrial production.

The invention belongs to the technical field of repair paint and particularly relates to aqueous acrylic internal-surface repair paint for a container and a preparation method for the aqueous acrylicinternal-surface repair paint. The repair paint comprises 10 to 15 parts of water, 0.1-0.3 part of bactericide, 0.03-0.06 part of anti-settling agent, 0.1-0.3 part of pH regulator, 0.8-1.2 parts of antifoamer, 0.3-0.6 part of dispersant, 5.4-11.3 parts of pigments, 20-25 parts of fillers, 45-55 parts of acrylic resin, 2.7-3.8 parts of film forming assistant, 0.1-0.2 part of wetting leveling agent,0.4-0.6 part of flash rust preventing agent and 0.05-0.15 part of thickener. According to the repair paint, an acrylic resin emulsion formed by the water and the acrylic resin can sufficiently disperse various ingredients so as to obtain the uniform-ingredient aqueous acrylic internal-surface repair paint for the container, thus, the consumption of the water is lowered, and the surface drying andsolid drying time is shortened. The aqueous acrylic internal-surface repair paint for the container has the advantages of high drying speed, wet heat resistance, rust prevention and low VOCs emissionand fully meets the needs of container repair paint on open work.

The present invention utilizes dibromodimethylhydantoin and adds solubilization agent and disintegrating agent to make them into composition, and makes said composition into disinfectant tablet and disinfectant powder, so that the solubility of dibromodimethylhydantoin can be greatly raised, and its dissolving speed is quick. The above-mentioned disinfectant tablet or disinfectant powder can be dissolved in the water, and can be made into disinfectant liquor, and can be used. Its use concentration is effective bromine content 1-3000 mg / L, and its bacteriocidal effect is obviously higher than that of chlorine-containing disinfectant. It is high-efficiency, broad-spectrum, safe, low-toxic and good in stability.

The invention relates to a low-smell adhesive and a preparation method of the low-smell adhesive, and belongs to the technical field of daily chemical production. The adhesive is prepared from chlorosulfonated polyethylene, acrylic monomer, epoxy metacrylic acid ester, cumene hydroperoxide, calcium carbonate crystal whisker and hydroquinone. The preparation method comprises the following steps: plasticating chlorosulfonated polyethylene on an open mill; performing thin-passing on the chlorosulfonated polyethylene for ten times and slicing out; adding acrylic monomer, the epoxy metacrylic acid ester and the chlorosulfonated polyethylene into a reaction kettle; heating and stirring until the chlorosulfonated polyethylene is completely dissolved; cooling to be at a room temperature; adding cumene hydroperoxide for stirring; and finally, adding calcium carbonate crystal whisker and hydroquinone for stirring and dispersing uniformly. According to the adhesive, the acrylic monomer and the epoxy metacrylic acid ester are compounded, so that the adhesive has the advantages of the acrylic monomer and the epoxy metacrylic acid ester; the defects are overcome, the fragility problem of the epoxy metacrylic acid ester is solved, the adhesive is low in smell and is free of strong pungent odor on adhesion of leathers.

The invention provides a device and a method for producing biodiesel with illegal cooking oil and waste engine oil. The device comprises an illegal cooking oil settling tank, a waste engine oil settling tank, a mixer, a heat exchanger, a tower-type fixed bed reactor, a condensing system, a gas storage tank, a diesel tank and a gasoline tank, wherein the mixer is connected with the heat exchanger; the heat exchanger is connected with the lower part of the tower-type fixed bed reactor through a preheater; and the condensing system is connected with the heat exchanger. The method comprises the following steps: pretreating, performing catalytic cracking reaction and collecting a product. The produced biodiesel is light yellow in color, has the condensing point of about minus 5 DEG C, has good low temperature fluidity, has a heat value far higher than that of the conventional biodiesel, and has stable product quality; environment pollution is reduced, and a decoloring step is not required; the tower-type fixed bed reactor is applied to the catalytic cracking reaction, so that the method has the advantages of convenience in heating, small investment, easiness in control of treatment amount and low operating cost; and a catalyst can be recycled, so that the device and the method are suitable to be popularized and applied.

The invention relates to the technical field of textiles, in particular to a puffing-printing-aldehyde removing-dyeing and finishing process. The puffing-printing-aldehyde removing-dyeing and finishing process comprises the following steps: I, preparation of raw cloth; II, puffing treatment; III, water washing; VI, dyeing; V, printing; VI, aldehyde removal. The puffing-printing-aldehyde removing-dyeing and finishing process has the beneficial effect of reasonable design, the puffed cloth has better hand-feel, and the printed cloth is more personalized. The printed cloth is subjected to the aldehyde-removing treatment, so that the strong pungent smell of the dyed cloth is avoided effectively.

The invention discloses a method for storing ginger without using pesticide. The method comprises the following steps of: removing sludge from the gingers and broken gingers; placing the gingers under the blazing sun for quite a long time until ginger epidermis is chapped and dried; cleaning a cellar neatly; performing sterilization and relative humidity control; placing the gingers into the cellar to pile up in a layered way, so that certain gaps are reserved among ginger blocks and the occupied area of the gingers is 3 / 4 to 5 / 6 of the cellar area; sterilizing yellow earth or fine sand; covering the yellow earth or the fine sand on the upper part of the whole ginger pile, wherein the periphery of the ginger pile is exposed; placing dried Chinese mugwort leaves and dried chillies on the open space of the cellar and burning the dried Chinese mugwort leaves and the dried chillies; and when the burned smoke ascends to the cellar opening, sealing the cellar opening, wherein the smoke generated by combustion of the dried Chinese mugwort leaves and the dried chillies has strong pungent smell and can poison ginger maggots in the gingers or the cellar, and the effective rate can reach over 97.5 percent, so that the gingers are prevented from being bitten by the ginger maggots, no decay spots or bugbite spots can be seen from the gingers, and quality of the gingers is guaranteed.