746results about How to "Acid resistant" patented technology

The invention discloses bifidobacterium bifidum capable of remarkably relieving constipation and application thereof and belongs to the technical field of microorganisms. The bifidobacterium bifidum CGMCC NO.13632 can well tolerate simulative gastrointestinal fluid, can be well attached to colon cancer cells HT-29, and can remarkably increase the water content of excrement of constipation mice and shorten the first tarry stool time. On the aspect of increasing the small intestine driving rate, the bifidobacterium bifidum CGMCC NO.13632 is superior to cathartic phenolphthalein, a best effect is shown, secretion of gastrointestinal regulatory peptide relevant to constipation in serum is also adjusted while constipation pathological factors are remarkably improved, and the bifidobacterium bifidum does not have toxic and side effects of medicine for treating constipation, and is a first choice for preventing and treating constipation. The bifidobacterium bifidum CGMCC NO.13632 is used for preparing pharmaceutical compositions and fermented food for relieving constipation, and has very wide application prospects.

The invention relates to a high-efficiency ferment for fermenting bean pulp, belonging to the biologic enzymolysis fermentation technical field. The high-efficiency ferment is formed by mixing bacillus subtilis, bacillus licheniformis, lactobacillus acidophilus, lactobacillus casei, saccharomyces cerevisiae and candida utilis. The fermentation technology comprises the following steps: crushing the bean pulp and corn; activating the strains; uniformly mixing the bean pulp and the fermentation liquor using a mixer; packing the mixed bean pulp in fermentation bag; fermenting the packaged bean pulp and processing fermented bean pulp: drying-crushing-detecting-packaging-finished product. The technology is simple and the product quality is stable and the content of the anti-nutrient factor in the bean pulp is eliminated and obviously reduced, therefore the bean pulp is a safe plant protein feeder for infant animal with balanced nutrient, good quality and low price and help for health growth of the infant animal, in replace of animal protein feeder of bone powder, fish powder or the like.

The invention provides a piece of novel sewing-free hot melt adhesive TPU-PU leather, and a preparation method thereof. The TPU-PU leather comprises release paper, a hot melt adhesive film, a TPU film and a dry-type PU film, wherein the release paper comprises a paper bottom layer, an adhesive layer, a plastic layer, a transition layer, and a release layer; a hot melt adhesive raw material is composed of polyester polyol, diisocyanate, polyether polyol, and a plurality of additives; a TPU raw material is composed of polymer polybasic alcohol, 1,4-cyclohexane-diisocyanate, a chain extender and a plurality of functional additives; a PU raw material is composed of polyester dibasic alcohol, straight chain diol, isocyanate, TDI trimer, dimethyl formamide, butanone, black sand, and a plurality of functional addictives. Through the adoption of the preparation method, innovations are conducted on the raw material components of the release paper, the hot melt adhesive, the TPU film and the PU film; the manufactured sewing-free TPU-PU leather has the technical advantages of firmness in adhesion, durability, environment-friendly materials, no invisible harm to a human body, and the like.

The invention provides a method for preparing a water-based polyurethane resin. The method comprises the following steps of: (1) reacting polyisocyanate, polyether diol and fluorine-containing diol to obtain prepolymer; (2) performing chain extension reaction on the prepolymer, bromine-containing diol and hydrophilic chain extender; and (3) neutralizing the solution by using a salt forming agent, and dispersing and emulsifying the solution by adding water to obtain water-based polyurethane dispersion. The invention also provides the water-based polyurethane resin prepared by the method. The water-based polyurethane resin solves the problems of poor dirt resistance and flame-retardant property of oil-based polyurethane resin and common water-based polyurethane resin.

The invention discloses an environment-friendly mid-voltage fire resistant cable, which comprises an aluminum alloy conductor arranged in the middle of the cable, wherein a conductor shielding layer, a cross-linked polyethylene insulation layer and an insulation shielding layer are sequentially extruded on the aluminum alloy conductor in a three-layer co-extruding manner; a metal shielding layer is arranged outside the insulation shielding layer; an insulation wire core consists of the aluminum alloy conductor, the conductor shielding layer, an insulation layer, the insulation shielding layer and the metal shielding layer; the metal shielding layer, a composite fire resistant heat insulation layer, a metal belt interlocked armored fireproof layer and an outer sheath layer are sequentially arranged outside the insulation shielding layer; three insulation wire cores and a filling material are stranded to form a cable core; and the composite fire resistant heat insulation layer consists of an inorganic heat insulation layer wrapped outside the cable core, a low-smoke halogen-free antiflaming polyolefin inner protection layer extruded outside the heat insulation layer and an inorganic fiber layer wrapped outside the inner protection layer. The environment-friendly mid-voltage fire resistant cable is a fire resistant aluminum alloy conductor mid-voltage cable which is low in cost, has high bendability, high fire resistance and high antiflaming performance, and is energy-saving and environment-friendly during manufacturing.

The invention provides marine anticorrosive powdered paint and a preparation method thereof. The formula of the paint comprises polyethylene, glass flakes and zinc powder, wherein the polyethylene is one or a combination of low-density polyethylene (LDPE), medium-density polyethylene (MDPE) and high-density polyethylene (HDPE); the glass flakes are scalelike glass flakes which are 40-3000 meshes; and the glass flakes are made of alkali glass or neutral glass. According to the invention, the glass flakes and the flaky zinc powder are added in the polyethylene (PE) base, so that glass layers and zinc layers having good barrier effect are distributed in the PE powder, wherein the glass layers can resist acid, alkali, salt and water, and the scalelike glass flakes can form multiple barrier layers in the PE layer. Thus, corrosive small molecules pass through the barrier layers as if passing through a maze and need to travel on a long and tortuous road, thereby improving the anticorrosive effect.

The invention discloses a super-hydrophobic surface of a metal copper micron array and a preparation method thereof. The method comprises the steps of firstly, building a coarse structure of micro-size copper on a metal substrate by chemical deposition; then carrying out hydrophobic treatment on the surface of a self-assembled low-surface energy matter to cover a layer of hydrophobic film on the coarse structure, so as to obtain the super-hydrophobic metal copper surface. The metal copper surface prepared by the method disclosed by the invention has an excellent super-hydrophobic property; the contact angle with water drops can achieve 156 degrees; the rolling angle is smaller than 1 degree; meanwhile, the copper hydrophobic surface has a good surface structure stability, has excellent performances such as acid resistance, alkali resistance, organic solvent resistance, low temperature resistance, and high temperature resistance, and can meet the requirements of the industrial field on the metal copper super-hydrophobic surface. The technique has the advantages that any template is not needed; complicated equipment is not needed; and the super-hydrophobic surface has no special requirements on the shape of a substrate and is suitable for industrial mass production.

The invention discloses a copper-silver micro-nano multi-stage structure super-hydrophobic surface formed on a metal base surface. The copper-silver micro-nano multi-stage structure super-hydrophobic surface comprises a copper-sliver micro-nano multi-stage structure and a hydrophobic film. The hydrophobic film is self-fitted on the surface of the copper-sliver micro-nano multi-stage structure. The copper-sliver micro-nano multi-stage structure comprises a plurality of copper-sliver micro-nano cones which longitudinally grow perpendicular to a metal base and which are tightly arranged. The hydrophobic film is self-composed of low surface energy material. Compared with common self-assemblies, the copper-silver micro-nano multi-stage structure super-hydrophobic surface has the advantages that sulfydryl of hydrophobe long-chain mercaptan and outermost silver ions of the copper-sliver micro-nano multi-stage structure form a coordinate bond having a large stable constant, and accordingly, the copper-silver micro-nano multi-stage structure super-hydrophobic surface is well stable, resistant to acid, alkali, organic solutions, high temperature and low temperature.

The invention relates to a plastic-wood composite material which is characterized by comprising a main material and an auxiliary material, wherein the main material comprises waste plastic and biomass fibers; the auxiliary material comprises a lubricant, a compatilizer, a stabilizer, a dispersant, a coupling agent and an antioxidant; the main material also comprises cement, fly ash and natural stone powder. The plastic-wood composite material has the advantages of high compression resistance, high impact resistance, favorable acid/alkali resistance, favorable high/low-temperature resistance, favorable heat-insulating property, favorable wear resistance, favorable elasticity, favorable aging resistance, long service life and the like, can comprehensively utilize waste materials, is environment-friendly, and can be used for making various articles or appliances instead of wood, plastic and stone. The invention also provides a manufacturing method of the plastic-wood composite material, which is scientific and reasonable in technique, and is easy for formation.

The invention relates to a camellia saponin type oilfield foaming agent and a preparation method and application thereof. The oilfield foaming agent comprises the following components in part by mass: 100 parts of camellia saponin based on the solid content, 1 to 10 parts of cocoanut oil diethanol amide, 1 to 10 parts of amine ether alkyl glucoside, 1 to 10 parts of dodecyl betaine, and 0.5 to 2 parts of lauryl dimethy amine oxide, wherein the camellia saponin is natural plant source camellia saponin or structure-modified camellia saponin. The camellia saponin type oilfield foaming agent is used as an oilfield foaming agent in oil recovery, has the characteristics of acid, alkali and salt resistance, temperature resistance, high foam expansion ratio, long stable foam time and the like, can meet oil extraction requirements under different geological and weather conditions, cannot pollute an oilfield soil layer employing the foaming agent, can prevent a chemically synthesized foaming agent from harming the oilfield stratum, and has remarkable environmental protection characteristic.

The invention relates to the technical fields of color master batches and preparing technologies thereof, in particular to a preparing technology for color master batches, and particularly discloses a preparing technology for color master batches for high-speed spinning fibers. The preparing technology includes the steps of carrier grinding, coloring material grinding, matched material grinding, assistant grinding, mixed grinding, high-speed grinding, extrusion prilling and drying. The color master batches prepared with the technology can be easily mixed with PET product plastic, and the even coloring effect can be achieved. Dispersibility, coloring strength and covering power are improved, weather resistance, acid resistance, heat resistance and cold resistance are achieved, the chemical stability of pigment is kept, and the color master batches are more environmentally friendly and healthier in the use process.

The invention discloses a high-temperature and high-pressure multi-phase flow dynamic visualization loop corrosion testing apparatus and a method thereof. The high-temperature and high-pressure multi-phase flow dynamic visualization loop corrosion testing apparatus comprises a medium displacement unit, an experiment parameter measurement unit, a visualization unit, a corrosion testing unit, a gas inlet valve, a circulation loop, a driving pump, a 1# end cover, a 2# end cover, a gas discharge valve and an H2S absorption device, wherein the experiment parameter measurement unit, the corrosion testing unit, the 1# end cover, the 2# end cover, the gas discharge valve and the H2S absorption device are arranged on the circulation loop, and the medium displacement unit is connected to the circulation loop through the driving pump. According to the present invention, the subcritical and supercritical fluids under the high-temperature and high-pressure environment can be realistically simulated, the shearing force can be measured, the erosion damage effect of the multi-phase flow corrosion medium on the corrosion inhibitor film and the corrosion product film can be quantitatively analyzed, and the online testing of the pipeline corrosion effect can be completed and the results are recorded.

The invention discloses a water-based anticorrosive coating of nano montmorillonite and polypyrrole complex and a preparation method thereof, and relates to a coating. The coating comprises the following raw materials in part by weight: 1 to 50 parts of montmorillonite, 20 to 300 parts of solvent, 0.8 to 55 parts of protonic acid, 0.07 to 18.5 parts of organic active agent, 8.5 to 50.6 parts of ferric trichloride hexahydrate or ferric sulfate, 0.8 to 56 parts of pyrrole, 4.5 to 50 parts of surfactant, 10 to 55 parts of resin matrix, 0 to 10 parts of modified resin, 0.34 to 5.6 parts of neutralizing agent, 0.6 to 10 parts of pigment, 20 to 100 parts of deionized water, 0.05 to 1.2 parts of defoaming agent, 0.22 to 1.34 parts of anti-settling agent, 0.13 to 1.15 parts of dispersant, 0.02 to1.08 parts of flatting agent and 0.05 to 1.04 parts of film-forming auxiliary agent. The method comprises the following steps of: preparing the nano montmorillonite and polypyrrole complex, namely pre-treating the montmorillonite and synthesizing the nano montmorillonite and polypyrrole complex; and preparing the coating.

The invention belongs to the field of microbes, and concretely relates to a lactic acid bacterium with wide-spectrum bacteriostatic activity and application thereof. The lactic acid bacterium with wide-spectrum bacteriostatic activity is named lactobacillus salivarius GZPH2, is preserved at China Center for Type Culture Collection (CCTCC) since 27th, November, 2014, and has the preservation number of CCTCC M 2014598. The provided lactic acid bacterium lactobacillus salivarius GZPH2 has good bacteriostatic effect on multiple pathogenic bacteria of human and aquaculture bionts, and possesses the characteristics of not generating histamine, no hemolysis, acid resistance, cholate resistance and the like.

The reformable soft gasket consists of chloroprene rubber 2-10 wt%, teflon emulsion 50-84 wt%, silk floss or polymer fiber 3-20 wt%, reinforcing stuffing 0.5-5 wt%, lubricating oil 10-20 wt%, plasticizer 0.5-3 wt% and graphite 0-24 w. The gasket of the present invention has the features of excellent sealing performance, high durability, low friction coefficient, no need of water cooling, good self-lubricating performance, no wear of shaft and muff, power saving, corrosion resistance, capacity of being reused, etc.

The invention discloses an ascending and descending dual-buoyancy regulation sinking bed-floating bed water quality purification device. A sinking bed system is provided with a hollow sinking bed water level regulating framework; a circle of hollow outer rectangular framework is tightly fixed on the periphery of an upper rectangular frame of the sinking bed water level regulating framework; water is injected into the sinking bed water level regulating framework and the outer rectangular framework, so that the sinking bed system reaches a fixed planting water level or a growth water level. The device is characterized in that a floating bed system providing region is added to the periphery of a sinking bed; the system balance is controlled through the peripheral single floating bed system; the bed body stability is enhanced, so that the influence of environment factors on the sinking bed and a floating bed is reduced. The water level of water sinking plants in the water is regulated through the water irrigation and water pumping effect inside the sinking bed and the effect of a regulating rope; by controlling the growth position of the water sinking plants in the water, the most proper growth water level of the water sinking plants in the water can be realized; the natural environments are simulated to the maximum degree. The water sinking plants and water emerging plants are combined; the water body ecological system recovery can be facilitated to the maximum degree.

The present invention relates to a hot melt adhesive film for adhering a sole. The hot melt adhesive film comprises the following raw materials by weight: 50-60 parts of ethylene-vinyl acetate (EVA), 30-60 parts of modified ethylene-ethyl acrylate (EEA), 15-35 parts of a styrene-butadiene block copolymer (SBS), 5-20 parts of a terpene resin, 0.1-0.5 part of bis-(tertbutylperoxy isopropyl)benzene (BIPB), and 0.1-0.5 part of benzoyl peroxide (BPO). According to the present invention, the hot melt adhesive film does not contain benzene, toluene, xylene and other harmful solvents, the sole does not require the primer treatment, the operation process is simple, and the environmental requirement requirements are met.

The invention discloses a preparation method of a flexible CdTe thin-film solar cell. The preparation method comprises the following processing steps: 1) cleaning a mica substrate (1); 2) growing a transparent conductive thin film (2) on the mica substrate (1); 3) growing CdS (3) on the transparent conductive thin film (2) of the substrate (1) and then growing a CdTe (4) thin film on the CdS (3); 4) carrying out annealing treatment for the CdS and CdTe thin films prepared in the step (3) in an atmosphere with CdCl2 steam; and 5) vapor depositing a conductive back electrode on the CdTe thin film after the annealing treatment to prepare the flexible CdTe polycrystalline thin-film solar cell.

The invention relates to an end-blocking slurry for a flaky component, which is prepared from the following raw materials in percentage by mass: 40 to 55 percent of silver powder, 4 to 15 percent of glass powder, 5 to 25 percent of inorganic filler and 20 to 40 percent of organic carrier, wherein the silver powder comprises the following silver powder in percentage by mass in the slurry: 25 to 40 percent of flaky silver powder and 15 to 30 percent of spherical silver powder. The end-blocking slurry has the advantages that: (1) the content of silver is low so as to reduce the cost of the slurry and improve the market competitiveness of the products, and 300 RMB can be saved in 1 kg of the slurry; (2) lead is not contained in the slurry, which is in favor of environmental protection; (3) a compact and flat conductor layer is formed at the end head of a substrate without pit and bulge after the processes of dipping the silver, drying and sintering, so the platability is good, the adhesive force is strong, and the glass is acid resistant. The slurry has good process use characteristics and is suitable to be used in the industries for generating the flaky components.

The invention discloses polyethylene out-phase ion interchanging film for filled bed electricity oozing salt eliminating device and the manufacturing method. The film comprises: high pressure polyethylene 100, linear high pressure polyethylene 18í½30, chlorine sulphur polyethylene 2í½5, cinnamene-butadiene-cinnamene polymer 3.1í½3.8, polybutylene 15í½30, calcium stearate 5í½8, antioxidant 0.5í½1.5, positive or negative ion interchanging resin power 370í½480. The film combines several kinds of plastic as frame, adds the power into the plastic and rolls them and extracts out the film. Enhances them by terylene cloth, finally, carries on hydraulic pressure and heat pressure.

The invention relates to a special heavy-duty anti-corrosion powder coating for steel bar coating. Its raw material components and parts by weight are: 700-800 parts of epoxy resin; 5-10 parts of curing agent; 50-60 parts of pigment; 170 parts of filler -190 parts; 20-40 parts of additives; add the above materials to a high-speed mixer, add them to an extruder after dry mixing, and melt, knead, cool, and tablet at an extrusion temperature of 90-100 ° C. After being pulverized, classified, sieved, and packaged by a pulverizer, it becomes a finished product of powder coating. The special heavy-duty anti-corrosion powder coating for steel bars prepared by the present invention is mainly used in railways, highways, bridges, basements of high-rise buildings, underground garages, seaports, wharves, dams, sewage treatment pools, chemical industries and other industries that require heavy anti-corrosion. The stability of steel bars can prolong the final service life of buildings for more than 30 years. Experiments have proved that the corrosion resistance of steel bars coated with epoxy coating is 800 times higher than that of bare steel bars.

An electro-deposited W-base non-crystal or nano-crystal alloy electroplated layer instead of the electroplated hard Cr layer is disclosed. Its electroplating liquid contains ferrous sulfate, nickel sulfate, cobalt sulfate and sodium tungstate. Its electroplating process is also disclosed.

The invention discloses a submerging bed-floating bed coupled water purifying device. The submerging bed-floating bed coupled water purifying device comprises a submerging bed and a floating bed which are made of UPVC (hard polyvinyl chloride) tubes, wherein the submerging bed comprises upper and lower rectangular frames which are the same in shape; a plurality of perpendicular connecting tubes are arranged between the two rectangular frames; a plurality of horizontal connecting tubes are arranged in the lower rectangular frame; the frames are internally communicated; a floating block capable of being spliced is embedded into the lower rectangular frame, and a planting pot in which submerged plants are planted is arranged on the floating block; a floating block capable of being spliced is also embedded into the floating bed, a planting pot in which emergent aquatic plants are plants is arranged on the floating block, and artificial seaweeds are suspended between adjacent floating blocks of the floating bed; the submerging bed is placed on the center of the inner outline of the floating bed; a connecting rope is arranged between the submerging bed and the floating bed. According to the submerging bed-floating bed coupled water purifying device disclosed by the invention, positions, in water, of submerged plants are regulated by internally watering and pumping the submerging bed, so that the positions of the submerged plants are changed along with ecological niches of water level, transparency and the like, and a natural water environment is simulated to a greatest extent. The water plant planting amount is large, the varieties are rich, the survival rate is high, and the restoration of water body ecological community is facilitated.

The invention provides a two-liquid type quick forming instant peeling synthetic leather composite veneer, which is mainly characterized in that bonding layer resin is added with a quick crosslinker and a crosslinking catalyst, so that the two-component bonding layer resin achieves quick crosslinking, and can achieve proper degree of crosslinking through normal veneering process so as to achieve the aim of instant peeling. The high peeling hydrolysis resistant non-woven fabric polyurethane synthetic leather produced by the process has good physical and mechanical properties such as high peeling strength, tearing strength and bursting strength, bending resistance, low temperature resistance, hydrolysis resistance, acid and alkali resistance and the like.

A configurable hydroponic unit and system are disclosed. The configurable hydroponic unit (100) comprises a water tank (110). The water tank includes at least one partition bar (1114, 1115) and at least one movable dam element (150). The at least one separation bar is provided at the bottom edge of the tank for separating the water tank into a plurality of groove areas. The at least one movable dam element is movably mounted within the tank to prevent nutrient flow. Said at least one divider bar and said at least one movable dam element forming a configurable channel in which the nutrient solution flows within the tank. Due to its modular characteristics, the configurable water culture unit can be stacked in turn to form a multi-layer hydroponic system which enables the vertical circulation of the nutrient solution.

The invention relates to a solar heat- reflective insulating varnish, belonging to coating technology field. When it is coated on the surface of glass, it can insulate heat and maintain glass transparency. The invention aslo provides the preparation method. The comprised raw material and proportion by weight are as follows: film forming matter 35-45, inorganic oxidant 10- 15, levelling agent 0.5- 1, defoaming agent 0.3- 0.5, silane coupling agent 1- 5, and mixing solvent 33.5- 53.2. The varnish is characterized by heat resistance, water resistance, acid and alkali resistance, high reflecting solar heat, good light transmission rate, low cost, energy- saving, and suitability to be used for building galss, car glass, solar house heating, incandescent lamp lighting and refrigerator glass. The preparation process and device is easy and simple and is suitable for industrial production.