1123results about How to "Strong water resistance" patented technology

The invention relates to a low-temperature smoke denitration SCR (silicon controlled rectifier) catalyst, which comprises a carrier, a manganese oxide, and composite oxide of one or more of Ce, Zr, Ti, Co, Fe and Cu, the mass content of manganese is 0.1-66 percent, and the total mass content of the Ce, Zr, Ti, Co, Fe or/and Cu is 0-50 percent; and glass fiber and/or kieselguhr is used as the carrier, wherein the glass fiber of the carrier is calcined for 2-4 hours at temperature of 400-600 DEG C, then placed in a nitric acid, sulfuric acid or hydrochloric acid solution with mass concentration of 5-40 percent for acidizing for 1-8 hours, washed by distilled water to be neutered, dried at temperature of 80-120 DEG C, and crushed to have the fineness of 20-325 meshes. The catalyst uses the glass fiber and the kieselguhr as the carriers, so that the dispersion effect of nanoparticles and specific surface area of the catalyst are increased, the high adsorptive capacity and strong heat resistance and corrosion resistance capacity are achieved, stronger toxic resistance capacity to sulfur dioxide and stream contained in the smoke is realized, the invention can be used for 10-200 DEG C of low temperature smoke denitration, and has strong water resisting and sulphur toxic resisting capacities.

The invention discloses a modified-starch-based wood adhesive and a preparation method thereof. The preparation method comprises the steps that oxidized corn starch is used as a main raw material, a cross-linking agent is added into the oxidized corn starch to conduct crosslinking modification, and then an initiating agent and a high molecular monomer are added to the oxidized corn starch to conduct graft modification, so as to obtain a modified starch emulsion in a complex net structure; and after the modified starch emulsion is warmed up and pasted, modifying agents comprising a stabilizing agent, a defoaming agent, a plasticizing agent and the like are added into the modified starch emulsion, and the high-performance green environment-friendly adhesive is manufactured. Each performance of the adhesive disclosed by the invention can reach or exceed requirements of a GB/T9846-2004 standard, the adhesive has the characteristics of high bonding strength, good water resistance, long storage time, high solid content, low cost, greenness, environment friendliness and wide use range, and can be widely applied to the bonding and the use of wood materials such as artificial boards, plywood and cellulose boards.

The invention discloses a room-temperature-curable aqueous anticorrosion primer used for coating the external surface of a construction crane. The primer comprises the following components by weight: 35-45% of an aqueous resin, 5-8% of a curing agent, 1-3% of a dispersant, 5-12% of an antirust pigment, 20-35% of a pigment filling material, 1-2% of an anti-settling agent, 0.5-1% of a wetting agent, 0.5-1% of a thixotropic agent, 0.5-1% of an antifoaming agent, 0.1-0.8% of a flash etching inhibitor, 0.1-0.8% of a mildew inhibitor, 1-3% of a film-forming auxiliary agent and 10-20% of deionized water. The invention also discloses a preparation method of the aqueous anticorrosion primer. The aqueous anticorrosion primer has a room-temperature-curable paint film, is energy-saving and environment friendly, and can satisfy safe production requirements of enterprises; the primer is high in solidity, low in viscosity, convenient for construction; and the coating of the primer has good corrosion resistance and water proofness, and the comprehensive properties of the coating reach performance indexes of same-type oiliness products.

The invention discloses thermal insulation mortar which comprises the following components in percentage by weight: 20 to 60 percent of caustic calcined magnesia, 1 to 25 percent of fly ash, 5 to 35 percent of thickening time control agent, 0 to 40 percent of enhanced thickener, 1 to 20 percent of kieselguhr, 5 to 35 percent of expanded aggregate, 0 to 5 percent of polystyrene foam particles, 0 to 0.2 percent of polypropylene fiber, 0.5 to 8 percent of water-resisting admixture, and 0 to 2 percent of water reducing agent. The thermal insulation mortar has the characteristics of capability of coagulating and hardening quickly and having strong binding capacity with base materials, good volume stability, capability of producing volume micro-expansion in the process of coagulating and hardening, no crack, no splitting, strong water resistance, ageing resistance, long service life, light weight, and good heat preservation and heat insulation performance, wherein the coefficient of thermal conductivity is 0.05 to 0.30 W/m.k. The thermal insulation mortar has the advantages of no toxicity, odourlessness, zero radioactivity, no harm to human bodies, no pollution to environments, energy conservation, environmental friendliness and low production cost.

The invention relates to a water-based expandable fireproof steel structure coating and a preparation method thereof. The water-based expandable fireproof steel structure coating comprises the following components in mass percentage: 20-45% of coating matrix, 25-45% of nano-flame retardant, 0.1-10% of flame-retardant synergist, 1-10% of filler, 0.2-5% of auxiliary agent and 5-30% of water. The preparation method of the water-based expandable fireproof steel structure coating comprises the following steps: firstly, preparing the nano-flame retardant; secondly, adding a water-based epoxy emulsion, a water-based epoxy curing agent and a self-crosslinking silicone acrylic emulsion in the coating matrix into a stirring barrel, and stirring uniformly; thirdly, adding the nano-flame retardant, the flame-retardant synergist, the filler, the auxiliary agent and water, stirring for 10-30 minutes, adding a mixture into a ball grinding mil, grinding, checking whether the fineness of the coating meets a requirement, and if so, stopping grinding; fourthly, filtering the mixture with a filter screen, and separating grinding balls from the coating; and finally, filling the coating into a specified jar, discharging and barreling. The water-based expandable fireproof steel structure coating has a high expansion rate, has the fire endurance as long as 120 minutes and the coating thickens of 2 mm; and the water-based expandable fireproof steel structure coating is simple in preparation method, disposes solid wastes in the field of biomass power generation, is low in cost and wide in application and has significant economic and social benefits.

The invention relates to the field of building materials, in particular to a lightweight insulating brick. The lightweight insulating brick is prepared by mixing the following raw materials: 8 to 15 percent of gelled material, 30 to 50 percent of aggregate, 25 to 55 percent of lightweight material, 1 to 2 percent of aids and 3 to 4 percent of waterproof powder. Because lightweight materials of industrial and agricultural wastes are added into the lightweight insulating brick, the lightweight insulating brick changes waste into valuable, protects the environment, is energy-saving, insulates sound and heat, has strong insulating property and is warm in winter and cool in summer; and compared with an air-entrained cement building block, the lightweight insulating brick has the advantages of strong water resistance, water leakage resistance, high strength, strong safety, good compactness, slurry drop resistance, low investment and easy popularization.

The invention discloses a method for producing outer bag paper of apple fruit growing bags by coating method, which comprises pulping, pulping, net part forming, pressing and dehydration, paint preparation, coating, drying, coiling, slitting and rewinding to obtain finished products. The apple fruit bag paper produced by the invention can be divided into base paper and coating. The light-shielding property is completed by the pigment coating containing carbon black. It has the advantages of simple production process, low cost, and less pollution. It also solves the problem of In the layering method, carbon black is used for dyeing in pulp, which causes pollution and low utilization rate. Using carbon black and porcelain clay mixed paint for low-quantity coating can obtain good light-absorbing performance and is not easy to fall off black, maintain high softness and air permeability, high carbon black utilization rate, less usage, and water resistance meet the use requirements. The invention can be used to produce the outer bag paper of the apple fruit-raising bag, can meet the growth requirement of the fruit, prevents the pollution of pesticides and the erosion of wind and rain, and enhances the color and luster of the fruit surface.

Neutral borosilicate glass used for moulding medicinal bottles is provided, which pertains to the technology filed of glass containing aluminum, boron, 40 percent to 90 percent (by weight) of silicon dioxide and provides neutral borosilicate glass meeting the standard of medical packaging container (material) YBB00292002, YBB00322002. The glass contains 8-12 percent of B2O3 with expansion coefficient of 4.0-5.0 multiplied by 10<-6>/K, as well as a series of excellent physical and chemical properties such as good heat stability, strong acid-resistance, alkali-resistance, water-resistance and erosion-resistance. The invention adopts cold furnace top and deep bed, recycles volatiles of boron during the course of melting, thus effectively reducing boron volatilization, preventing unfavorable phenomenon from taking place, for example, the combined material layer from incrustation and reversing, and obtaining comparatively good economic benefit and quality benefit.

The invention relates to a method of preparing a composite preservative film or coating from chitosan and alcohol soluble corn protein. The method mainly comprises the following steps: (1) preparing 2wt% chitosan solution; (2) preparing 1-10wt% ethanol aqueous solution of alcohol soluble corn protein; (3) mixing the solutions prepared in the steps (1) and (2) in a volume ratio of 1:9 to 9:1 (v/v) to obtain a composite film solution; (4) flow casting the composite film solution obtained in step (3) and drying to obtain a film; or sequentially overlaying the solutions prepared in the steps (1) and (2) to obtain a double-layer preservative film. The chitosan-alcohol soluble corn protein composite preservative film or coating prepared in the invention is not only improved in the moisture resistance and ultraviolet resistance of a chitosan film, but also improved in the barrier property, mechanical properties and antibacterial activity of a alcohol soluble corn protein film, and is degradable, edible, etc. When the chitosan-alcohol soluble corn protein composite preservative film or coating prepared in the invention is used to package or wrap foods such as meat, oils and fats, fruits and vegetables, the quality guarantee period thereof can be effectively prolonged. Thus, the method has an extensive application prospect.

The invention relates to a biodegradation sustained-release fertilizer coating material containing soybean oil polyhydric alcohol and a preparation process thereof. The coating material is prepared by stirring a material A and a material B for 5s to 15s under the condition of 65 to 75 DEG C, wherein the material A accounts for 50 to 75 percent of the weight of the coating material, and the material B accounts for 25 to 50 percent of the weight of the coating material; the material A is one or combination of soybean oil polyhydric alcohol, polyether polyhydric alcohol and castor oil, and the material B is isocyanate. The soybean polyhydric alcohol prepared from the soybean oil which is low in price and easy to obtain is strong in water resistance, the coating material which is prepared from multiple functional groups and isocyanate is high in strength and biological degradability and environmentally friendly. By adopting the coating technology, no special equipment is needed, so that not only can the equipment investment cost be greatly reduced, but also the waste of solvent in the recycling process can be avoided, and the biodegradation sustained-release fertilizer coating material is free from polluting the soil, plants and the environment after being utilized for a long time.

The invention relates to a spinning adhesive liner and relative production, comprising that: preparing needed pattern on the treated base cloth via transfer or screen printing method; secondary treating and feeding it into special coating machine; to coat thermal-sensitive adhesive resin on the base cloth, with slurry point and single point, to obtain the target printed adhesive liner; using thermal rolling method to adhere the printed liner with face fabric to obtain clothes material.

The invention relates to a production method of abietic maleic anhydride resin, comprising the following two reaction steps of: 1, carrying out addition reaction on abietyl and maleic anhydride to generate an abietic maleic anhydride addition product; and 2, carrying out esterification reaction on the abietic maleic anhydride addition product and pentaerythritol to generate the abietic maleic anhydride resin. The production method is easy and convenient to operate, has the advantages of large temperature control range, high operability, small investment and stable product quality and is a method suitable for industrialized production; in the production method, appropriate process conditions including raw material proportion, reaction temperature, reaction time, catalysts, and the like, are adopted, thereby the acid value and the molecular weight range of a resin product can be effectively controlled; in addition, the resin product obtained with the production method has higher acid value of 150-170 mg KOH/g, reasonable softening point at 140-155 DEG C and good water solubility and is suitable for producing water-based ink, and a formed coating film has toughness and better after-tackiness resistance, water resistance and alkali resistance.

The invention relates to a preparation method for a methanol oil additive and the methanol oil thereof. The compound additive consists of the components of the following weight percentages; 30 to 50 percent of isopropanol, 10 to 20 percent of tertiary butyl alcohol, 1 to 5 percent of butyl acetate, 1 to 5 percent of methyl ethyl ketone peroxide, 1 to 5 percent of peroxide, 1 to 5 percent of sherwood oil, 5 to 10 percent of dimethylbenzene, 1 to 4 percent of octane enhancing additive, 1 to 5 percent of dimethoxymethane, 0.1 to 0.5 percent of antioxidizing and antigum agent, 0.1 to 0.5 percent of antiseptic, 1 to 8 percent of antiwear agent, 3 to 6 percent of waterproofing agent, 1 to 5 percent of dispersant, 1 to 3 percent of fatty acid amine, 10 to 30 percent of 120# solvent oil as well as 5 to 10 percent of ethanol. The methanol oil consists of the components of the following weight percentages: 10 to 80 percent of methanol, 0 to 85 percent of diesel oil as well as 5 to 20 percent of methanol oil additive. The methanol oil has the advantages of low cost, excellent performance, good environment protection effect, remarkable economic benefit and convenient popularization.

The invention relates to lightly calcined dolomite thermal insulation mortar, which comprises the following components in part by weight: 20 to 60 parts of lightly calcined dolomite, 1 to 60 parts of flyash, 5 to 35 parts of retarding agent, 1 to 40 parts of strengthening and thickening agent, 1 to 20 parts of kieselguhr, 5 to 35 parts of expanded aggregate, 0.5 to 5 parts of polystyrene foam particle, 0.01 to 0.2 part of polypropylene fiber, 0.5 to 8 parts of water resistance additive, and 0.05 to 2 parts of water reducer. The thermal insulation mortar has the advantages of excellent thermal insulation property, good compression strength, freezing resistance and water resistance, good volume stability, low production cost, energy conservation, environmental friendliness and the like. The construction process is simple; and after construction, the lightly calcined dolomite thermal insulation mortar is not hollowed or cracked, and is particularly suitable for a thermal insulation material for building walls.

The invention discloses a waterproof paint filler powder with absorption function and method for preparing same. Zeolite powder and/or bergmeal are used in the paint filler powder as absorbent, which offers toxic and hazardous gases absorption function for the paint filler powder and improves adhesion of the paint filler powder. When using waterproofing agent especially the cross-linked starch in the paint filler powder, the waterproof function of the paint filler powder is improved apparently.

A classifying collecting and treating method for organic refuse and excrement includes: 1) sucking the refuse and excrement into vacuum tubing net; 2) mixing them by vacuum pot and discharging into solid-liquid separated pool, and discharging the solid into anaerobic digesting reactor; 3) concentrating and dewatering the marsh slag discharged, adding deodorized bacterial strain, piling up and deodorizing; 4) adding digesting mud into bacterial strain cultured, culturing, drying and obtaining organic composite bacterial manure; 5) discharging the clear liquid and sewage into anaerobic and oxygen sewage treating unit, and the outlet water discharging into sewage tubing net or water body. Its advantages include lower mud output rate and mud account, and higher mud age.

The invention relates to a high-performance environment-friendly water-based conductive antistatic coating and a preparation method thereof. The coating comprises the following raw material by weight: 35-50% of a nonionic polyurethane emulsion, 0.5%-5% of graphene, 0.1-0.5% of a wetting agent, 10-15% of talcum powder, 0.5-1% of a dispersing agent, 0.1-0.5% of an anti-rust agent, 0-1% of an anti-settling agent, 5-1.5% of a film forming additive, 0.5-1% of a coupling agent and the balance of the water. The invention has the advantages of reasonable design, environment-friendliness, stable performance and good corrosion resistance; a nonionic waterborne polyurethane emulsion has high adhesion, washing resistance and stable performance; and the graphene has good conductivity and strong anticorrosion performance.