80results about How to "No growth" patented technology

The invention discloses a nano silver antibacterial latex pillow or mattress and a preparation method thereof. Tiny air holes are fully distributed on the surface of the nano silver antibacterial latex pillow or mattress, and air is filled into the tiny air holes; and the silver antibacterial latex pillow or mattress has bacterial resistance on aspergillus niger, aspergillus flavus, discolored aspergillus, penicillium citrinum, paecilomyces varioti, herbarium cladosporium, trichoderma viride and chaetomium globasum. The preparation method comprises the following steps of: uniformly mixing nano sliver with natural latex; then respectively adding sulphur, bi(triethoxy propylsilane)tetrasulfide and 2,6-butylethylene-4-methylphenol; uniformly stirring; adding soap and air to generate foams; then adding gelatin; and compressing for moulding. The nano silver antibacterial latex pillow or mattress of the invention combines air permeability, high elasticity and soft touch feeling of the latex with efficient bacterial resistance and broad spectrum sterilizing performance of nano silver and can effectively overcome the defects of easy bacterial generation, difficult air permeation, and the like of a common pillow on the market.

The invention relates to a preparation method of transparent tetravalent chromium-doped yttrium aluminum garnet ceramics. The preparation method comprises the following steps: weighing raw material powder according to a stoichiometric ratio of a to-be-prepared ceramic component structural formula (Al1-xCrx)5CayY3-yO12 (x is not smaller than 0.001 and not larger than 0.01, and y is not smaller than 10x and not larger than 40x); adding a sintering aid and a charge compensating agent; mixing by ball-milling to obtain a slurry material; drying and sieving the slurry material and then molding to obtain a biscuit; calcining to remove volatile impurities; sintering the biscuit in vacuum at the temperature of 1730 to 1850 DEG C for 4 to 30 hours; subsequently annealing in air at the temperature of 1300 to 1550 DEG C for 10 to 25 hours to obtain compact Cr<4+>:YAG transparent ceramics. The Cr<4+>:YAG transparent ceramics prepared by the method disclosed by the invention are high in compactness, good in uniformity, free of segregation, reasonable in grain graduation distribution, free of abnormal grain growth, free of grain interior and intergranular pores and high in penetration rate, and have the conditions for being a laser gain medium.

The invention relates to an environmentally friendly snow melting agent which comprises the following components in percentage by weight: 90-110 percent of calcium chloride, 15-25 percent of urea, 15-25 percent of sodium nitrite, 10-15 percent of potassium sulphate, 22-30 percent of sodium metasilicate and 50-90 percent of carbon black. The environmentally friendly snow melting agent can be used for effectively solving the problems of the traditional snow melting agent used in China on corrosion to metal and cement concrete, damage to plant growth, and the like. The snow melting agent product does not contain sodium chloride, thereby reducing the influences and the damages to roads and environment of ordinary snow melting agents, and has the advantages of high snow melting speed, no corrosion, small feed dose, economy, environmental protection, and the like. Products after melting can be used for promoting the growth of plants, and compared with the traditional products, the snow melting agent has micro corrosion to the metal and the cement concrete and also has safety and reliability; the residual products after snow melting can be used for promoting the growth of the plants so as to realize reutilization; and the snow melting agent is easy to deliquesce, has certain effects of stabilizing soil and controlling dust and good flowability and is easy to scatter and mechanically spread.

The invention relates to a microorganism bacterium agent for preventing and treating the ginger basal stem rot and a preparation method and application thereof. The microorganism bacterium agent comprises trichoderma longibrachiatum leavening and a mixed material; the mixed material is formed by humic acid, amino acid and medical stones; a mass ratio of the trichoderma longibrachiatum leavening to the humic acid to the amino acid to the medical stones is (3 to 6):(1 to 2):(1 to 2):(4 to 5); the number of active living bacteria in the trichoderma longibrachiatum leavening is greater than or equal to 2*10<9> per gram. According to the invention, the trichoderma longibrachiatum leavening is applied to prevention and treatment of the ginger basal stem rot; the microorganism bacterium agent for preventing and treating the ginger basal stem rot is prepared; the obtained number of the active living bacteria in trichoderma longibrachiatum is not smaller than 2*10<9> per gram; a prevention and treatment rate for the basal stem rot is high; the morbidity of the ginger basal stem rot can be greatly reduced by not less than 80%; yield of ginger can be improved by not less than 10%; the economic benefits are obvious; quality of the ginger product is improved.

The invention relates to a method for preparing nanometer tungsten carbide, belonging to field of preparing nanometer metallic carbide powder. The method employs formaldehyde-phenol resin as carbon source and demolding agent, and prepares mixture of nanometer W particle covered by formaldehyde-phenol resin, then gets nanometer WC powder through vacuum carbonization, and finally removes free carbon through heating treatment in hydrogen atmosphere. The invention is characterized by fine and homogenous WC powder, simple process and device and low cost.

The invention discloses an anti-TEGV (Transmissible Gastroenteritis Virus) high-immune serum, which is prepared by separating serum from immunized pigs through taking the inactivated vaccine of a TEGV HB08 strain CGMCC (China General Microbiological Culture Collection Center) No.7807 as an immunogen. The prepared high-immune serum is excellent in character, has no bacteria, mould, mycoplasma and exogenous virus pollution, and is strong in specificity and high in safety, the cure rate of artificial infection can achieve 100%, and the neutralization titer of the serum is 29 above.

The invention discloses antifouling corrosion-resistant marine cement and a preparation method thereof. The marine cement is prepared from the following raw materials in parts by weight: 32-48 parts of marine silicate cement clinker, 1-1.5 parts of a modified polycarboxylic acid water reducing agent, 5-15 parts of laver powder, 2-6 parts of garlic powder, 10-15 parts of acrylate, 1-5 parts of silane coupling agent microcapsules, 30-40 parts of basalt crushed stone, 3-5 parts of nano silica, 0.5-1 part of calcined attapulgite and 10-15 parts of clinker marine sand. The slurry structure preparedby the marine cement product has good compactness and volume stability, and the formed concrete has excellent impermeability, bacteriostasis, antifouling and crosslinking properties, and has high chloride ion diffusion resistance and sulfate erosion resistance, thus meeting the requirements of marine engineering construction.

The invention relates to a preparation method for anti-microbial deodorizing polyurethane foam and belongs to the field of a chemical material. The anti-microbial deodorizing polyurethane foam is prepared from the following raw materials in parts by weight: 20-40 parts of bamboo processing residue or tea-oil liquefied product, 30-50 parts of petroleum base polyether polyol, 10-20 parts of castor-oil base polyether polyol, 0.5-2.5 parts of catalyst, 4-9 parts of foaming agent, 0.5-3.5 parts of bacteriostatic agent and 100 parts of isocyanate. The catalyst is an amine catalyst. The bacteriostatic agent is polyphenol or saponin extracted and purified from fresh camellia seed shell or soapberry peel. The polyurethane foam provided by the invention can meet various requirements of anti-microbial deodorization, strength and environmental protection, can be widely applied to various fields and is especially suitable for the field of polyurethane foam requiring a certain density and strength and requiring anti-microbial deodorization, such as, buildings, flower arrangement and electric appliances.

The invention discloses interior wall putty with a mildew-proof function and a preparation method thereof. The interior wall putty with the mildew-proof function comprises the components in parts by mass: 2-8 parts of an inorganic cementing material, 0.2-2 parts of an organic additive, 0.1-1 part of cellulose ether, 80-97 parts of heavy calcium carbonate powder, 0.1-0.5 part of a water repellent,1-5 parts of a mildew preventive and 0.5-1 part of a coalescing agent. The water-resistant EVA rubber powder and the coalescing agent act together, so that the water-resistant EVA rubber powder formsa continuous compact film among gaps of heavy calcium carbonate powder particles, invasion of external water vapor is blocked, and the problems of mildew-proof long-term effect and environmental protection property of the interior wall putty are solved.

The invention discloses a process of a chromium oxynitride and diamond-like carbon film (DLC) composite coating fine dried noodle knife roller or stick. The process comprises the following steps of cleaning, drying, performing pre-treatment, coating a NO2Cr film layer as a transition layer (an anchoring layer) and coating a DLC outer film layer. By utilizing the process disclosed by the invention to coat a diamond-like carbon film on the fine dried noodle knife roller or stick, the hardness, toughness, wear resistance, corrosion resistance, antibacterial performance and lubrication performance of a fine dried noodle knife bar can be improved, so that the service life can be prolonged by 8-10 times. The process disclosed by the invention can be widely applied to other food machines.

The invention relates to a bio-padding and a preparation method thereof. The bio-padding comprises the following raw materials: saw dust, corn flour, soybean meal, crop straw, tapioca starch, potato starch, rice husk powder, wheat bran, bagasse, brown sugar, and biological flora. The bio-padding can completely decompose the excrement in the livestock and poultry breeding stage, so that in the breeding circle, no odor is generated, no mosquito flies grow, and no water is needed for washing; since no pollution is generated, the death rate of livestock and poultry is also reduced; and in addition, the fermentation waste produced by decomposing the excrement can be returned to the field as an organic fertilizer, so the recycling rate is high. The preparation method is simple and strong in controllability, and can realize large-scale production. The bio-padding solves the problems of arbitrary pollution and low utilization rate of the excrement during the livestock and poultry breeding process.

The invention relates to a laser matrix crystal of lead chlorofluoride doped with a rare earth ion and a preparation method thereof. The chemical formula of the laser matrix crystal is RE3<+>:PbClF, wherein the rare earth ion RE3<+> is selected from at least one of Yb3<+>, Nd3<+>, Tm3<+>, Ho3<+>, Pr3<+>, Ce3<+> and Er3<+>. The invention provides the chlorofluoride laser crystal doped with the rare earth, which has the advantages of disorder negative ion coordination and low symmetry.

The invention provides a wicker softening and sterilizing treatment method. The wicker softening and sterilizing treatment method comprises the following steps that firstly, deionized water is sprayed onto wicker to be harvested, and the temperature of the water is 25-30 DEG C; secondly, two hours later, the wicker sprayed with the deionized water is cut and harvested, leaves are removed, and the wicker skin of the portion from a cut opening to the position 5 cm above the cut opening is scraped; thirdly, the wicker is placed in a bucket containing sterilization liquid with the cut opening facing downwards, the wicker is taken out of the bucket after softening treatment is conducted on the wicker for 1-2 hours, the wicker is dried till the water content of the wicker is not higher than 3%, then the wicker is placed in softening liquid to be subjected to softening treatment for 2-4 hours again, the wicker is taken out and completely washed with distilled water, and afterwards, the wicker is dried till the water content of the wicker is not higher than 5%; and fourthly, the wicker is soaked in the softening liquid for 30 minutes, then completely cleaned with clear water and placed in a burning sun environment to be dried. The wicker softening and sterilizing treatment method has an extremely good killing effect on certain harmful bacteria, moths and the like in the wicker, the tenacity and processability of the wicker are enhanced, and the treated wicker can prevent mould breeding for a long time.

The invention relates to a preparation method of octodecyl trimethyl ammonium bromide (OTAB) antibacterial solid paraffin, which takes solid paraffin as raw material, OTAB as antibacterial agent, and stearic acid as dispersing modifier. The preparation method comprises the steps of: 1. slowing heating the solid paraffin until the solid paraffin is melted at the constant temperature of 80-90 DEG C; 2. weighing and taking the stearic acid according to the proportion of 1: 5-10 between the OTAB and the stearic acid; 3. slowing heating the stearic acid until the stearic acid is melted at the constant temperature of 80-90 DEG C; 4. weighing and taking the OTAB according to the dosage of the OTAB accounting for 0.6% of the weight of the solid paraffin; 5. adding the OTAB into the obtained stearic acid melt with the temperature of 80-90 DEG C, and evenly stirring; 6. adding the mixed melt of the OTAB and the stearic acid into the paraffin melt with the temperature of 80-90 DEG C, and evenly stirring; 7. heating the turbid mixed melt of the OTAB, the stearic acid and the paraffin to 100-110 DEG C, and slowing stirring until the turbid mixed melt is clear and transparent; and 8. naturally cooling the obtained mixed melt to be room temperature, and obtaining the OTAB antibacterial solid paraffin. The OTAB antibacterial solid paraffin is excellent in antibacterial performance, good in safety, simple in technique, low in cost, easy to popularize and apply, wide in usage and remarkable in social and economic benefits.

The invention provides a centrifugal compression type pressure swing adsorption oxygen generator, and belongs to the technical field of oxygen generators. The problems that an existing oxygen generator is high in clean oxygen generation cost, large in size and not suitable for comprehensive popularization are solved. The generator comprises a centrifugal compressor, an intercooler, an aftercooler,a buffer tank, a filter and a pressure swing adsorption tower, the centrifugal compressor comprises a motor, a first impeller, a second impeller and a suspension bearing. Output shafts at the two ends of the motor are directly coupled with the first impeller and the second impeller through supporting of the suspension bearing correspondingly. Two ends of the intercooler are respectively connectedwith the outlet end of the first impeller and the inlet end of the second impeller; the outlet end of the second impeller is connected with the inlet end of the aftercooler, the outlet end of the aftercooler is connected with the buffer tank through the check valve, the buffer tank is connected with the pressure swing adsorption tower through the filter, and the centrifugal compressor, the intercooler and the aftercooler are integrated in the compressor box body. The oxygen generator is mainly used for preparing oxygen.

A Chinese medicine "Hanxiu burn oil" for treating burn is prepared from 11 Chinese-medicinal materials including sensitiveplant herb, dipsacus root, saffron, coptis root through pulverizing and immersing in sesame oil. Its advantages are sure curative effect, low cost and convinient application.

The invention relates to a technology for keeping freshness of a red bayberry juice. The technology is characterized in that the red bayberry juice is subjected to superhigh pressure treatment under condition of 300-600 MPa, pressure maintaining time is 5-10 minutes; pressure relief is carried out, and then the red bayberry juice processed by superhigh pressure is placed under storage condition of 4-25 DEG C for storage. The fresh-keeping technology can kill the microbe in the red bayberry juice, and can maintain the sensory quality and nutrition quality of the red bayberry juice.