426results about How to "Alkali resistant" patented technology

The invention discloses a high-humidity modulus viscose fiber with dry strength of 3.5-6.0cN / dtex, wet elastic modulus of 0.35-0.60cN / dtex and wet strength of 2.0-4.5cN / dtex, and prepared of cellulose pulp with degree of polymerization of 500-1200 and alpha-cellulose content >=95% by the steps of dip-basifying, squeezing, ageing, yellowing, dissolving, wet spinning moulding, drafting, etc. And it has features of higher intensity and wet modulus, better loop strength performance, and lower brittleness; and the fabrics made by it has features of high intensity, multiple deformation resistance, alkali resistance, etc.

The invention relates to water soluble acrylic acid epoxy resin and a preparation method thereof. The epoxy resin is emulsion formed by neutralizing and self-emulsifying a product of a catalytic esterification reaction of acrylic acid resin and epoxy resin, and the variation of tu-4 cup viscosity of the emulsion stored for 6 months is less than 5 percent; epoxy equivalent of the epoxy resin is between 180 and 5,000g / mol, and the epoxy resin accounts for 10 to 80 percent of gross weight of the epoxy resin and the acrylic acid resin; the acrylic acid resin is polymerized from hydroxyl-containing acrylic acid, carboxyl-containing acrylic acid, other acrylic acids and styrene monomers which are initiated by peroxide, and has the acid value of between 50 and 500mgKOH / g and the number average molecular weight of between 5,000 and 60,000g / mol; and the epoxy resin with the epoxy equivalent less than 1,300g / mol does not need bisphenol A chain extension, has simple operation, and is convenient for regulating the proportion of the epoxy resin. The method can be used for preparing the water soluble acrylic acid epoxy resin with wider proportion of the epoxy resin and stable storage.

The invention discloses a water-based plastic coating. The water-based plastic coating comprises the following components: a water-based resin emulsion, deionized water, a filler and additives. The invention further designs a preparation method of the water-based plastic coating, and the preparation method comprises the following steps: adding the filler into the water-based resin emulsion, adding an appropriate amount of deionized water, stirring, pouring into a sand mill for grinding, putting into a dispersing cylinder when the fineness is below 80mu m, adding the additives, sealing, stirring and detecting the viscosity for not less than 95s to prepare the water-based plastic coating. The water-based plastic coating has excellent water absorption, water retention, water suction and drainage and a good humidity adjusting effect, can be used for regulating the indoor relative humidity, and has the advantages of relatively high scrubbing resistance, water resistance and solvent resistance, corrosion resistance, alkali resistance, light resistance, weather resistance, good film-forming property, excellent color retention, wear resistance, corrosion resistance, controllable hardness, high performance-price ratio and the like, and the preparation method is simple, easy to operate without pollution, good in construction and safe to use.

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 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 provides a preparation method of an alkali-resistant high-class ceramic tile sealant which has alkali-resistant property, mildew-resistant property, waterproof property and weather-resistant property. The alkali-resistant high-class ceramic tile sealant is mixed and packaged according to the weight ratio of various materials by using equipment in a plant and can be applied to construction by stirring with water according to the proportion of dry powder sealant to water of 1:(0.15-0.20) when in use. The alkali-resistant high-class ceramic tile sealant solves the industry problem of alkali return of the traditional cement-based ceramic tile sealant and achieves the purposes of perfectly reflecting the visual effect of buildings and effectively reducing potential safety hazards caused by ceramic tile falling.

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 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.

A radon-screening water emulsoid paint used as decorative paint for preventing radon, benzene, xylene and formaldehyde from being educed from wall and adsorbing them contains water, hydroxyethyl cellulose, disperser, defoaming agent, levelling agent, light calcium carbonate, titanium oxide, bentone, talc powder, ethanediol, film forming agent, PVDF-acrylate copolymer and vinyl acetate-acrylate copolymer emulsion, and antibacterial mildew-proof agent.

The invention discloses a fire-retardant coating with photo-catalytic performance and a preparation method thereof, belonging to the field of fire-retardant coatings. The coating comprises a base material, a catalyst, a charring agent, a foaming agent, a filler, a pigment, a solvent, a dispersant, a drier, a drying aid, a nano mother solution and the like, wherein the base material is aluminum dihydrogen phosphate, the catalyst is ammonium polyphosphate, the charring agent is pentaerythritol, the foaming agent is melamine, the filler is ultra-fine slag powder, the pigment is Cu-La / TiO2, the solvent is water, the dispersant is a BYK180 polymeric dispersant, the drier is lead oxide, the drying aid is zinc powder, and the nano mother solution is a nano SiO2 mother solution. The fire-retardant coating disclosed by the invention reduces the environment pollution to the maximum extent by using industrial waste residues as the filler; meanwhile, the coating has a function of realizing photocatalytic degradation of formaldehyde gas under a visible light source to endow conventional fire-retardant coatings with a brand-new function, and the fire-retardant coating accords with the development trend of national green ecological building materials.

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.

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 discloses a hastelloy stainless steel seamless steel pipe comprising the following components in percentage by weight: 14.5-16.5% of chromium, 15-17% of molybdenum, 4-7% of iron, 3-4.5% of tungsten, less than or equal to 2.5% of cobalt, less than or equal to 0.01% of carbon, less than or equal to 1% of manganese, less than or equal to 0.08% of silicon, less than or equal to 0.35% of vanadium, less than or equal to 0.04% of phosphorus, less than or equal to 0.03% of sulfur and the balance of nickel; and the method for manufacturing the hastelloy stainless steel seamless steel pipe comprises the following steps of: (1) checking the material and performing primary acid washing on the material; (2) performing polishing, combined rolling and drawing and oil removal on the blank acid-washed previously; (3) determining whether the requirements of the finished product are met, and if not, performing solid-solution thermal treatment, straightening and acid washing on the intermediate and repeating the step 2; and (4) if so, performing solid-solution thermal treatment and straightening on the finished product, and then performing fixed-length cutting, acid washing and examination on the finished product. The hastelloy stainless steel seamless steel pipe has the functions of resisting corrosion, high temperature, strong acids and strong bases, and cost-saving.

The invention relates to a preparation method of a graft copolymer of nano cellulose and aliphatic polyester. The preparation method comprises the following steps of: adding cellulose as a raw material into a certain concentration of acidic solution, acidulating for a certain time under heating and stirring conditions, then centrifugally separating, collecting solids, washing with distilled water till neutralizing, freezing and drying to prepare the nano cellulose; then initiating the ring-opening polymerization of Epsilon-caprolactone and lactide monomer by taking hydroxyls in nano cellulose molecules as an initial active point and stannous octoate as an initiating agent under water-free and oxygen-free conditions to obtain the grate copolymer of the nano cellulose and the aliphatic polyester, wherein the grate copolymer is completely biodegradable. The nano cellulose grafted aliphatic polyester material is even to disperse in a substrate of a polyester material, and has excellent plasticity and machinability, acid resistance, alkali resistance and waterproofness.

The invention discloses a hot bending furnace for colored glazing glass, a method for preparing hot-bent glass by using the hot bending furnace and the prepared colored glazing toughened hot-bent glass. The hot bending furnace comprises a furnace body (1), a push-pull base (2), an electric heating device (3) consisting of a fixed heating furnace wire (7) and a movable heating furnace wire (8), and an electrical appliance control device (4). In the process of performing hot bending treatment by using the hot bending furnace, the movable heating furnace wire (8) performs local auxiliary heating on the bending position of glass so as to ensure that the glass is completely attached to a mould at the bending position; the radius of a bending arc of the prepared colored glazing toughened hot-bent glass is less than or equal to 90mm, and the bending radian fully meets design requirements; multiple hot bending treatment such as single bending, continuous bending and the like can be realized; and the defects that the conventional hot-bent glass cannot be completely attached to the appropriate position of the mould, the prepared hot-bent glass has only one bending arc and the radius of the bending arc is more than 90mm are overcome.

The invention discloses a micropore alumina and mullite ceramic separation film supporting body and a preparation method thereof. The supporting body is prepared through the grouting forming technology and the in-situ reaction sintering process and is prepared from, by weight, 52-80% of aluminum oxide materials, 1-38% of alumina-silica raw materials, 1-18% of binding materials and 0.05-10% of additives. The granularity of aluminum oxide materials and alumina-silica raw materials is smaller than or equal to 0.075 mm. The method has the main advantages that a small amount of mullite with binding and filling effects is generated in a sample in situ, the sintering temperature of a product is reduced, and the physical performance of the product is improved; the obtained micropore alumina and mullite ceramic separation film supporting body is low in sintering temperature, high in mechanical strength, high in permeability, capable of resisting acid, alkali and high temperature, high in reproductivity, low in preparation cost, capable of easily controlling the process and suitable for application and popularization and the like.

The acid-proof and wear-proof anticorrosive paint includes two parts, component A and component B. The component A consists of epoxy resin 40-50 weight portions, silicone resin 30-40 weight portions, carbon black 2-4 weight portions, xylene 12-22 weight portions; and the component B is curing agent of polyamide resin. The preparation process of the acid-proof and wear-proof anticorrosive paint includes the following steps: preparing component A through mixing epoxy resin, silicone resin and carbon black, adding xylene and grinding; preparing component B; and packing the component A and the component B separately. Before painting, the component A and the component B are mixed in the weight ratio of 3-5 to 1. The paint can form coating capable of resisting heat, wear, acid, alkali and corrosion and with long service life through curing at normal temperature.

The invention relates to a preparation method of biobased water-borne UV (ultraviolet) curing environment-friendly nail polish. The preparation method is characterized by comprising the following steps of weighing 30 to 50% of biobased water-borne UV curing environment-friendly nail polish resin, 5 to 10% of deionized water, 40 to 60% of pigment, 0.1 to 0.5% of wetting dispersant, 0.1 to 0.5% of flatting agent, 0.2 to 0.5% of defoaming agent, and 1.0 to 2.0% of thickener; adding the pigment, the wetting dispersant, the flatting agent, the defoaming agent and the deionized water into a ball mill to mill, so as to obtain a color paste a; adding the biobased water-borne UV curing environment-friendly nail polish resin into the color paste a, stirring at high speed, adding the thickener, and filtering by a 200-mesh filter net, so as to obtain the biobased water-borne UV curing environment-friendly nail polish. The prepared biobased water-borne UV curing environment-friendly nail polish has the characteristics that the curing speed is quick, the transparency is good, the storage stability and luster are high, the adhesion force is good, and the like. The preparation method has the advantages that the green, environment-friendly, non-toxic and non-odor effects are realized, and the product cost is reduced.

The invention relates to the technical field of organic silicon. In order to solve the problem of high cost due to the fact that a photoinitiator needs to be added in curing of existing UV-cured polyurethane and the problem that yellowing and degradation of mechanical properties are easily caused by the low-molecular-weight photoinitiator, the invention provides a preparation method of a UV-curedorganic silicon modified hyperbranched polyurethane material. The method comprises the following steps: reacting isocyanate-terminated hyperbranched organic silicon modified polyurethane with hydroxylacrylate to obtain organic silicon modified polyurethane containing acrylate groups, uniformly mixing the organic silicon modified polyurethane containing acrylate groups with polysiloxane containingmercaptopropyl groups, carrying out vacuum defoaming for 10-30 minutes, and carrying out UV curing for 10-120 seconds. The optical transparent material not only has the flexibility and mechanical properties of a polyurethane material and the excellent adhesive property with a base material, but also can give full play to the advantages of temperature resistance, weather resistance, ultraviolet radiation resistance, hydrophobicity and the like of organic silicon.

The invention relates to a high-temperature and high-pressure flowing device for evaluating corrosion resistance performance of materials. The high-temperature and high-pressure flowing device comprises a high-temperature and high-pressure autoclave body, a high-temperature and high-pressure autoclave cover, a branch pipe, a branch pipe sealing device, a visual window, a blade, a flow-limiting plate, a stirring rod, a pressure sensor, a temperature sensor, a time relay, and a data collection and control system; the device is manufactured by adopting solidly forging corrosion-resistant alloy steel, achieves maximum working gas sealing pressure of 70MPa and highest working temperature of 200 DEG C, and has the advantages of acid corrosion, alkaline corrosion, chlorine gas and the like corrosion resistance as well as obvious corrosion resistance. A magnetic coupling is arranged, and the revolving speed is digitally controlled by a computer and displayed and recorded in real time, thus realizing circulating flowing of the corrosive medium.. The visual windows are arranged on the two branch pipes of the corrosion device and have equal sealing property, strength, corrosion resistance, temperature resistance, thermal fatigue service life to the high-temperature and high-pressure autoclave body, thus being capable of observing the flowing corrosion conditions of the materials and phase states of the corrosion medium in real time under different temperature and pressure conditions.

The invention discloses a fire retardant coating with photocatalytic performance and a preparation method thereof. The fire retardant coating is obtained by mixing and stirring a base material, a catalyst, a charring agent, a foaming agent, filler, a pigment, a solvent, a disperser, a dryer, a drying aid and a nano-mother solution. By adopting the preparation method provided by the invention, the environment pollution can be furthest reduced, the recycling economical production of the product can be realized and about 20% of the cost can be reduced; the fire retardant coating prepared by the invention has excellent performances of high strength, rapid hardness, washing resistance, water resistance, alkali resistance and freezing resistance, particularly has an outstanding feature of degrading the formaldehyde gas in the room through photocatalysis and has a natural, non-toxic, pollution-free environment-friendly safety performance.

The invention discloses a method for the prevention, treatment and control of gummosis of peaches in a field. The method comprises the steps: (1) selecting peach trees with consistent tree body growth from an adult peach orchard, and scraping gum from gumming points with bamboo chips; (2) after scraping off the gum and marking, carrying out five treatments on the gum scraped points: 1, smearing a 150-times carbendazim solution; 2, smearing the 150-times carbendazim solution, and smearing tung oil after medicine liquid is naturally dried by air; 3, smearing the 150-times carbendazim solution, and smearing varnish after the medicine liquid is naturally dried by air; 4, smearing the tung oil; 5, smearing the varnish, wherein a reference treatment comprises the step of scraping off the gum without smearing any medicament, each treatment is carried out on 4-6 peach trees, and each peach tree has not less than 20 gum scraped points; (3) carrying out experiments that the treatment of gum scraping for one time and smearing different medicaments and protective agents is carried out respectively in a growing period and a dormancy period, and counting the re-gumming ratio of the gum scraped points, which are subjected to the five treatments in the growing and dormancy periods, in a next dormancy period. Shown by results, the best treatment comprises the steps of scraping off the gum and smearing tung oil in winter; the tung oil is low in price and is non-toxic, non-amyctic and pollution-free, and the field operation is simple, so that the popularization is facilitated.

The invention discloses a bi-component environment-friendly inorganic polymer coating material and a preparation method thereof. When being used for thick-layer coating processes (roll coating, knife coating and spray finishing) or thin-layer coating processes (brush coating and spray finishing), the coating material is prepared by mixing a prepared component A and a prepared component B at a weight ratio of (1.6-1.8):1 or (0.7-0.8):1. The component A is prepared by mixing 25-35 or 65-85 parts by weight of calcined kaolin, 1-2 parts by weight of pigment, 1-2 or 2-4 parts by weight of hardening accelerator and 55-75 or 8-35 parts of filler, and fully stirring the mixture. The component B is prepared by fully stirring 2-4 parts by weight of thickening agent and 96-98 parts by weight of excitant solution. The coating material prepared by the method has the properties of heat resistance, acid-base resistance, water resistance, freeze-thaw cycle resistance and the like, has the advantages of decorative performance, low cost and no pollution to environment, and belongs to an environment-friendly material.

The invention discloses exterior wall crack resistant elastic putty powder comprising the following raw materials: by weight, 20-30 parts of ash calcium powder, 10-15 parts of white cement powder, 10-20 parts of calcium carbonate powder, 10-15 parts of quartz powder, 40-50 parts of modified talcum powder, 1-1.5 parts of carboxymethyl cellulose, 2-3 parts of carboxymethyl starch ether, 3-4 parts of redispersible latex powder, 2-3 parts of polypropylene staple fiber, 1-2 parts of aluminum silicate fiber and 0.5-1 part of NSJF-2 latex powder. The powder putty has crack resistance, frost resistance, heat resistance, alkali resistance, water resistance and other functions, can greatly improve the bonding strength of a wall body paint substrate, improves the service life of a wall body paint, overcomes the defects of easy falling, peeling and cracking of traditional putty powder, is completely environmentally friendly, may not pollute the environment, is harmless to human body, easy to use, simple to construct, durable and reliable, and has obvious social benefits and environmental benefits.

The invention discloses an MBR and MMBR composite sewage treatment system based on panel ceramic membranes. The composite sewage treatment system comprises a raw water facility, a raw water pump, bioreactors, a suction pump and a clean water pond, wherein each bioreactor comprises a reactor body, an aerating device and a sludge discharging system, and panel ceramic membranes and MBBR suspended fillers are organically combined in the same bioreactor and share the aerating device and the sludge discharging system; and an input end of the raw water pump is communicated with the raw water facility, an output end of the raw water pump is communicated with the internal space of the reactor body, an input end of the suction pump is communicated with outlets of the panel ceramic membranes, and an output end of the suction pump is communicated with the clean water pond. By combining the advantages of an MBR and an MBBR, a relatively good sewage treatment effect, particularly to high-COD and unmanageable industrial wastewater can achieved, and furthermore, the occupied area of a sewage plant can be reduced.

The invention relates to wax emulsion and a manufacture method of the wax emulsion. The wax emulsion comprises the main components by weight: 22-28% of paraffin wax, 2-3% of stearic acid and 2.2-2.8% of ammonia water. The use amount of a used emulsifying agent is small and is only 1 / 2-1 / 3 of that in the prior art. The produced wax emulsion is strong in product stability, and has the advantages of acid resistance, alkali resistance, hard water resistance, strong water solubility, stable emulsion, no layering while being diluted with water in any proportion, no demulsification, no agglomeration, long storage life, high solid content and good dispersibility, so that waterproof and mechanical properties of artificial boards are improved, and the product quality of the artificial boards is improved.