30results about How to "Strong adhesive force" patented technology

The invention relates to a semi-cemented artificial rock core model. The semi-cemented artificial rock core model is formed by a transparent organic glass tube, a quartz sand filling area at the middle portion, and sand grain cementing areas at two ends. A filling device of the semi-cemented artificial rock core model comprises a manual hydraulic pressure pump, a pressure release valve, a pressure meter, a fixed support, a solid threaded iron rod and a middle container with a stopper and an open end. The invention further provides a filling method of the semi-cemented artificial rock core model. The device and the method have the following advantages: 1, the making cost of the rock core is reduced, the technical threshold of making of the rock core is reduced, and the making efficiency of the rock core is improved; and 2, the aperture structure of the rock core is protected by the organic glass tube, so destroys of high confining pressure to the rock core and the change of the aperture structure are effectively avoided. The device has the advantages of simple structure, convenience in operation, high practicality and high simulation credibility, and the method is a novel rock core model making technology suitable for being promoted.

Disclosed premixed colored pervious concrete is prepared from the following components in parts by weight: 289 to 306 parts of cement, 51 to 54 parts of fly ash, 15 to 25 parts of a reinforcing agent, 1450 to 1550 parts of coarse aggregate, 3.4 to 3.6 parts of a water reducing agent, 90 to 120 parts of mixing water, 0.51 to 0.54 part of a tackifier and 10 to 15 parts of a coloring agent. The cement is adopted as a main cementing material, the coal ash improves the workability and durability, the reinforcing agent improves the strength of the premixed colored pervious concrete and inhibits surface efflorescence, the tackifier improves the bonding force between slurry and an aggregate interface, and the inorganic coloring agent ensures that the color of a surface layer of the premixed colored pervious concrete is durable and does not fade. In the premixed colored pervious concrete, the slurry can uniformly wrap the aggregate and is clustered by hand holding, the cementing force of the slurry and the aggregate is strong, stones do not fall off for a long time, the permeable rate after hardening is high, the strength is not lower than C20, the color is lasting and does not fade, saltpetering is avoided, and the durability is good.

The invention discloses a shield synchronous grouting material special tackifier characterized by comprising the following components by the mass percentage: 85-95% of silica fume; 2-8% of polyacrylamide; and 2-10% of a seawater slurry regulator, wherein the sum of the mass percentages of the components is 100%. The tackifier can greatly improve the anti-water dispersity of a shield synchronous grouting material, reduces the water bleeding rate and the stratification degree of the material, prevents strong duct piece floating ability, improves the stability of the material, improves the comprehensive performance of the material, makes the 28 d land and water strength ratio of a synchronous grouting liquid reach 90% or more, and can well adapt to conditions of high-pressure water-rich strata.

The invention discloses a normal-temperature fast-curing phosphosilicate inorganic adhesive and a preparation method of the adhesive. The normal-temperature fast-curing phosphosilicate inorganic adhesive is characterized by being prepared from the following raw materials in parts by weight: 100 parts of a base material, 85-100 parts of sodium silicate with a modulus of 3.0, 90-100 parts of Portland cement, 30-45 parts of a toughening reinforcing material and 150-200 parts of deionized water. The normal-temperature fast-curing phosphosilicate inorganic adhesive is single-component, and has good adhesive strength, no toxic additive and no VOC emission.

The invention discloses a microbial erosion resistant protective concrete, which comprises the following components by weight: 260-300 parts of cement, 80-120 parts of fly ash, 20-30 parts of silica fume, 40-60 parts of mineral powder, 930-960 parts of gravels, 720-750 parts of yellow sand, 8-12 parts of hydrated oxide, 8-12 parts of an additive, 40-64 parts of nano silicon dioxide, 2-4 parts of ahydrophobic poreblocking ingredient and 130-150 parts of water. The prepared concrete has excellent mechanical properties and volume stability, can effectively resist microbial erosion for a long time under the condition that no antibacterial component is added, and is particularly suitable for urban drainage pipelines, sewage treatment systems and the like.

The invention discloses an LED display screen and a preparation method thereof. The LED display screen is provided with a lamp surface, wherein a hydrophilic resin protective layer and a transparent modified polysilazane resin layer are sequentially arranged on the lamp surface; the hydrophilic resin protective layer is positioned between the lamp surface and the transparent modified polysilazaneresin layer; and the transparent modified polysilazane resin layer comprises the following components: polysilazane resin, a silane coupling agent and vapor phase hydrophobic nano silicon oxide particles. According to the LED display screen, the transparent modified polysilazane resin layer is arranged on the hydrophilic resin protective layer, so that a better fingerprint prevention effect can beachieved. Due to the adoption of the polysilazane resin, the bonding force between the vapor phase hydrophobic nano silicon oxide particles and the hydrophilic resin protective layer can be improved,and thus the bonding force between a nano coating of the transparent modified polysilazane resin layer and an adhesive surface of the hydrophilic resin layer is stronger, a more stable fingerprint prevention effect can be realized, and the hydrophobic effect is better.

The invention discloses a novel preparation method of crosslinking modified starch microspheres. The novel preparation method of the crosslinking modified starch microspheres comprises the following steps: firstly, using modified starch as a raw material, and preparing a modified starch solution with the concentration of 5 to 30 percent g / ml; secondly, adding a certain amount of polyvinyl alcohol solution as a modifier, adding the prepared modified starch solution into an oil phase containing an emulsifier; thirdly, carrying out high speed emulsification by a shearing machine, wherein the emulsifying speed is 500 to 2000rpm and the time is 10 to 20 minutes, and the like. According to the novel preparation method disclosed by the invention, a unique cross-linking agent which is divinyl sulfone (DVS) or sodium tetraborate decahydrate is adopted and the existing cross-linking problems are greatly improved, thereby obtaining a more stable and rapid crosslinking reaction and better product performance.

A wind driven generator base anchor pile construction technology taking rock as a bearing stratum comprises the following steps: (1) excavating rock and soil volume in designed diameter, pouring concrete subslab after removing to the designed depth of excavation, and arranging anchor pile hole sites, (2) starting up an air compressor and downhole drill to drive an impacter to rotate and vibrate for punching, forming an anchor pile hole, (3) lifting a prefabricated reinforcing cage into the anchor pile hole, pouring concrete, and forming at least two circles of vertical pile and one circle of batter pile after the concrete strength reaches the standard, (4) putting a reinforcement mat rack into a base pit, fixedly connecting the reinforcing cage and the reinforcement mat rack and then pouring concrete, and (5) arranging a base embedded part above the concrete foundation and poring concrete. The invention has the advantages of less excavated rock and soil volume, no need of blasting operation, few amount of reinforcing steel bar and pouring concrete, no pollution to environment and soil, high construction efficiency and safety, small occupied area, low construction cost, high foundation strength, and strong pulling-out resistant and shearing resistant capacity.

The invention relates to a waterborne polyurethane adhesive with long persistent viscosity. The structure of polyurethane in the adhesive is shown as a formula I in the specification. The invention further provides a preparation method of the waterborne polyurethane adhesive, and the obtained polyurethane adhesive has a telechelic structure and a long persistent viscosity. Hydroxyalkyl polysiloxane is introduced to the end of the polyurethane molecular structure, the finally obtained waterborne polyurethane adhesive product has the capability of keeping viscosity for a long time and strong adhesive force by optimizing the proportion of macromolecular polyol, sulfonic acid type polyester polyol, diisocyanate, micromolecular alcohol chain extender, polysiloxane and catalyst, meanwhile, the activation temperature of the adhesive is reduced to a certain extent, particularly, when the adhesive is used as an automotive trim adhesive, the construction efficiency can be obviously improved, the working intensity can be reduced, and the quality of downstream products can be improved.

The invention relates to a high-viscosity heat-resistant film. The high-viscosity heat-resistant film comprises an adhesive layer and a coating film, wherein the coating film comprises a modified PETfilm; and the adhesive layer comprises nanometer silica gel, an adhesive, polypropylene fiber / polylactic acid fiber / bionic fiber / mixed fiber, graphite powder, an emulsifying agent and absolute ethanol. The high-viscosity heat-resistant film mainly comprises the coating film and the adhesive layer in a macrostructure, and the adhesive layer comprises the nanometer silica gel, the adhesive, the polypropylene fiber / polylactic acid fiber / bionic fiber / mixed fiber, the graphite powder, the emulsifying agent and the absolute ethanol as main components; the high-viscosity heat-resistant film has relatively strong viscosity, is not directly adhered during adhesion, is slowly adhered to the surface of an object after a period of time after adhesion, has a large adhesive force and does not fall off;the high-viscosity heat-resistant film further has high heat resistance, a substance in the adhesive layer has relatively strong heat resistance, and the morphological change of the substance after being heated is not caused; and then, due to addition of the graphite powder into the adhesive, the high-viscosity heat-resistant film further has high antistatic ability.

A novel brake pad and a mold and method for preparing the brake pad. The invention proposes a new type of brake pad, which includes a friction material block, and the friction working surface of the friction material block is formed with a plurality of stepped working surfaces with different heights and gradually raised or lowered. In this way, the step-by-step working surface of the present invention forms a step-shaped chamfer, which can effectively reduce brake noise and efficiently remove wear debris, and as the The consumption of the friction material block increases the friction area with the tire brake disc step by step, so that the braking effect will not be poor due to the smooth friction surface after long-term use. Therefore, the braking noise of the present invention is low, the chip removal effect is good, the friction effect is good, stable and durable, and has strong practicability. The invention also provides a mold, which can integrally form the brake pad, has no bad demoulding, high efficiency, strong bonding force, stable quality, low cost, material saving and no industrial waste. The invention also proposes a method with clear and concise steps, which can efficiently prepare integrally formed brake pads.

The invention discloses a preparation method of environment-friendly green composite building adhesive and belongs to the field of adhesives. Sheep bones are pretreated to be completely puffed, water is added for immersion, the pH value is adjusted, and then bone glue is formed after separation; the bone glue, polyethylene glycol and sodium cyanate are mixed and react, and finally the composite building adhesive is obtained. The biological bone glue is modified, the prepared adhesive is environmentally friendly, free of harm to production and users, high in adhesive force, good in waterproofness and high in corrosion resistance, and the service life of the adhesive is prolonged.

The invention discloses a preparation method of a copybook golden brick writing board. The preparation method comprises the following steps of 1, preparing a main material, wherein lake mud of the deep portion of the bottom of a lake is adopted, the lake mud is smashed after dried to obtain the main material; 2, preparing raw materials, comprising, by weight, 80-100 parts of main materials, 10-12 parts of amorphous silica dioxide, 30-32 parts of aluminium oxide, 15-25 parts of graphite and 20-30 parts of water, the main materials and the water are mixed and uniformly stirred at a low speed, after the graphite is added, quick stirring is conducted, then aluminium oxide and amorphous silica dioxide are added, and slow stirring and low-temperature settling are conducted to obtain a brick preparation material; 3, preparing a raw brick; 4, firing in vacuum; 5, cooling. Cement is not added in the raw materials of the golden brick writing board, the product writing board is smooth and exquisite, water-absorbent, stable in structure, not easy to crack, high in mechanical strength and long in service life.

An LED display screen and a preparation method thereof, the LED display screen has a lamp surface, a hydrophilic resin protective layer and a transparent modified polysilazane resin layer are sequentially arranged on the lamp surface, and the hydrophilic resin protective layer is located on the Between the lamp surface and the transparent modified polysilazane resin layer; wherein, the material of the transparent modified polysilazane resin layer includes the following components: polysilazane resin, silane coupling agent and Gas-phase hydrophobic nano-silica particles. The above-mentioned LED display screen can have a better anti-fingerprint effect by providing a transparent modified polysilazane resin layer on the hydrophilic resin protective layer. Due to the use of polysilazane resin, it can improve the bonding force between the gas-phase hydrophobic nano-silica particles and the protective layer of the hydrophilic resin, thereby making the nano-coating of the transparent modified polysilazane resin layer and the rubber surface of the hydrophilic resin layer The binding force is strong, which can achieve a relatively stable anti-fingerprint effect, and the hydrophobic effect is good.

The invention relates to the technical field of construction engineering, coating and decoration and finishing materials, and provides a method for producing novel fluffy nano-adhesive powder which isless in equipment investment, simple in production process, low in cost, strong in adhesive force and suitable for industrial popularization and application. The method provided by the invention is implemented in two parts comprising synthesis of fluffy powder and production method of novel fluffy nano-adhesive powder, wherein the fluffy powder is synthesized by the following components: 10%-20%of sulfuric acid, 5%-25% of alkali, 15%-40% of anhydrous sodium sulphate, 0.1%-0.5% of an activator, 15%-40% of water, 0.5%-2% of a puffing agent, 5%-10% of silicon powder, and the sum of weight percentages of all the raw materials is 100%; the production method of novel fluffy nano-adhesive powder adopts the following raw materials: 50%-85% of fluffy powder, 1%-5% of silicone oil, 5%-15% of a nano-adhesive agent, 5 %-18% of white carbon black and 0.5%-3% of thickening powder, wherein the sum of the mass percentages is 100%.

The invention discloses a manufacturing method of an automobile interior and exterior adhesive tape taking a reinforced adhesive tape as a base material. The manufacturing method comprises the following steps: S1, preparing materials; s3, preparing a flame-retardant adhesive; s4, treating the base material; and S5, carrying out gluing treatment. According to the manufacturing method of the automobile interior and exterior trimming adhesive tape with the reinforced adhesive tape as the base material, the automobile interior and exterior trimming adhesive tape manufactured with the polyester film as the base material is good in insulativity, large in adhesive force and good in high-temperature resistance and solvent resistance, the bonding degree of the whole adhesive tape can be improved by adding the softening agent, and the adhesive force of the whole adhesive tape can be improved. By adding the thermoplastic particles, the prepared automobile adhesive tape is light in overall weight, convenient to carry, stable in chemical system, free of corrosion, good in impact resistance, good in abrasion resistance and good in plasticity, the prepared flame-retardant adhesive has good flame retardant performance, and the service life of the automobile adhesive tape is prolonged. And the cable has the advantages of excellent moisture resistance, shock resistance, corona resistance and electric leakage resistance.

The invention relates to the field of wallboards, and particularly discloses a novel heat preservation and insulation integrated wallboard and a manufacturing method thereof. A novel heat preservation and heat insulation integrated wallboard is characterized by comprising a concrete wall body which is formed by pouring a heat insulation concrete mixture; the heat-insulating concrete mixing material comprises the following components in parts by mass: 144-146 parts of water; 338 to 339 parts of cement; 33 to 34 parts of fly ash; and 1165 to 1170 parts of a hollow microsphere filling material. 5.2 to 5.4 parts of a water reducing agent; the surface of the hollow microsphere filler is rough; the hollow microbead filler is obtained by corroding hollow glass microbeads with a corrosive solution. The method has the effects of reducing the building construction difficulty, simplifying the construction process and shortening the construction period.

The invention discloses a preparation method of a copybook golden brick writing board. The preparation method comprises the following steps of 1, preparing a main material, wherein lake mud of the deep portion of the bottom of a lake is adopted, the lake mud is smashed after dried to obtain the main material; 2, preparing raw materials, comprising, by weight, 80-100 parts of main materials, 10-12 parts of amorphous silica dioxide, 30-32 parts of aluminium oxide, 15-25 parts of graphite and 20-30 parts of water, the main materials and the water are mixed and uniformly stirred at a low speed, after the graphite is added, quick stirring is conducted, then aluminium oxide and amorphous silica dioxide are added, and slow stirring and low-temperature settling are conducted to obtain a brick preparation material; 3, preparing a raw brick; 4, firing in vacuum; 5, cooling. Cement is not added in the raw materials of the golden brick writing board, the product writing board is smooth and exquisite, water-absorbent, stable in structure, not easy to crack, high in mechanical strength and long in service life.

The invention provides an adhesive for porcelain teeth and a preparation method of the adhesive. The adhesive is prepared from the following raw materials in parts by weight: 30-40 parts of ceramic powder, 3-6 parts of nano silver, 10-20 parts of hyaluronic acid, 8-15 parts of aluminum oxide, 2-8 parts of zirconium dioxide, 10-18 parts of pearl powder and 50-60 parts of deionized water. The adhesive has a fast curing speed and strong adhesive force, is not easy to crack and degum, and improves the problems of fragility and easy degumming; and the preparation method is simple in process and lowin cost, and facilitates industrialization.

The invention discloses a plywood hot pressing method. The plywood hot pressing method comprises the following steps of 1, pre-pressing, wherein a sliced veneer is dried in the air, laminated and thenarranged, a plywood semi-finished product after the laminating and arranging is aired, and then the aired plywood semi-finished product is putted into a pre-pressing machine for normal-temperature pre-pressing; 2, hot pressing, wherein the pre-pressed plywood semi-finished product is putted into a plywood hot pressing machine, and the hot pressing machine is started to pressurize the semi-finished plywood; 3, pressure relief and moisture removal, wherein a pressure relief valve is opened for relieving pressure and removing moisture for the hot-pressed plywood semi-finished product; and 4, cooling, wherein the plywood after pressure relief is placed on an airing rack for cooling setting, and then the next procedure is carried out for surface finishing. According to the plywood hot pressingmethod, pre-pressing time and pressure of the plywood are controlled, so that the plywood has less foams in hot-pressing, the gluing bonding force is strong and the structure is stable.

The invention discloses a novel preparation method of cross-linked modified starch microspheres. The alcohol solution is used as a modifier, and the prepared modified starch solution is added to the oil phase containing the emulsifier, and then emulsified at a high speed by a shearing machine. The emulsification speed is 500rpm to 2000rpm and the time is 10 to 20 minutes. Using a unique cross-linking agent, the cross-linking agent is divinyl sulfone (DVS) or sodium tetraborate decahydrate, which greatly improves the existing cross-linking problem, thereby obtaining a more stable and fast cross-linking reaction and better Product performance.

The invention relates to a stability improvement method of steel slag aggregates. According to the method, different carbonization strengths are applied to screened and graded steel slag by use of carbon dioxide gas in a carbonization box or a carbonization kettle at the specific temperature and specific humidity, the stability of the steel slag is improved as far as possible, the treated steel slag can be prepared into cement mortar, cement concrete, pervious concrete or asphalt concrete aggregate for use, the steel slag has better stability, and the utilization rate of the steel slag can besubstantially increased.

The invention provides a novel brake pad and mold and method for manufacturing the novel brake pad. The novel brake pad includes a friction material block. A plurality of stepped working surfaces which have different heights and rise or fall step by step are formed on the friction working surface of the friction material block. In this way, the stepped working surfaces rising or falling step by step form chamfers in a step form. According to the chamfers in the step form, abraded scraps can be removed efficiently while braking noise is lowered effectively; in addition, with consumption of the friction material block during use, the friction area of the friction material block with a tire braking disc increases step by step, and therefore the situation that as friction surfaces become smooth after a long time of use, the braking effect is poor is avoided. Accordingly, the novel bake pad is low in braking noise, good in scrap removal effect and friction effect, stable, durable and high in practicability. The invention further provides a mold, and the mold enables the brake pad to be integrally formed, avoids bad stripping and is high in efficiency and cementing force, stable in quality, low in cost, capable of saving materials and free of industrial waste. The invention further provides the method, steps are clear and concise, and therefore the integrated formed brake pad can be manufactured efficiently.

The invention provides a method for preparing water-resistant and environmentally friendly beer label glue. (1) Blend defatted soybean protein powder and water 1:3 and stir evenly, adjust the pH to 12 with 12% NaOH, react in an oven at 100°C for 2 hours, and cool at room temperature for 10 %HCL to adjust the pH to 5, and the materials are for later use; (2) water and polyvinyl alcohol 1:1 are blended and stirred for 20mim in a water bath at 100°C, and cooled to 60°C; (3) the solution obtained in step 2 is mixed with the solution obtained in step 1 Solution, mix and disperse for 30 minutes according to the ratio of 2:1; (4) Add polyphosphoric acid and thickener to the solution in step 3 in turn under stirring state at 60°C, add polypropylene plastic flow agent at 40°C, and add disinfectant at room temperature Foaming agent, stirred for 10 minutes each, filtered and discharged.

The invention discloses a leak repairing adhesive for a house and a preparation method thereof. The leak repairing adhesive comprises a component A and a component B, wherein the component A comprises, by weight, 80 to 85 parts of an epoxy resin, 20 to 25 parts of cement, 30 to 32 parts of polypropylene glycol diglycidyl ether, 20 to 22 parts of butyl glycidyl ether, 15 to 17 parts of lignin, 12 to 15 parts of carbon black, 10 to 12 parts of hydroquinone, 7 to 9 parts of rosin, 3 to 5 parts of silica and 2 parts of an ultraviolet ray absorber, the component B comprises, by weight, 40 to 45 parts of nitrate, 30 to 32 parts of an aqueous polyvinyl alcohol solution with a concentration of 5%, 20 to 22 parts of sodium silicate, 10 to 12 parts of polyetheramine and 2 to 3 parts of magnesium oxide, and a weight ratio of the component A to the component B is 100: 30. The leak repairing adhesive has a fast curing speed, strong cementing force, anti-aging and anti-racking functions and good leakproof endurance, and the phenomenon of water leakage does not occur even after long-term usage of the leak repairing adhesive.

The invention discloses a method for preparing etherification-oxidation-grafting multi-modified starch. It uses original starch as raw material, adds etherifying agent, oxidant and composite catalyst, uses microwave semi-dry method to complete the etherification oxidation reaction in one step, and then uses The obtained etherified oxidized starch is used as raw material, initiator, alkaline catalyst and composite vinyl monomer are added, and the graft copolymerization is carried out in a microwave reactor using an open system method. This invention organically combines the three denaturation methods of etherification, oxidation, and grafting, and connects a variety of reactive groups to the starch molecular structure to maximize strengths and avoid weaknesses, and complement each other's advantages. By adjusting the process formula, a series of reactive group ratios can be obtained Multiple modified starches with different grafting rates. The product has various excellent properties of carboxymethyl etherification and / or hydroxyalkyl etherification, oxidation, and grafted starch, and can be used in papermaking, food, textiles, daily chemicals, polymer flocculants, highly absorbent materials, and oil fields. Chemical materials, degradable plastic films and plastics.

The invention relates to a thermoplastic rubber foam material FRB and a preparation method thereof, and belongs to the field of new chemical materials.The thermoplastic rubber foam material FRB is prepared from, by weight, 30-70 parts of styrene-butadiene block copolymer (SBS), 5-30 parts of ethylene-octene block copolymer (OBC), 3-10 parts of styrene-butadiene copolymer, 3-10 parts of polystyrene (PS), 5-30 parts of white oil, 3-8 parts of white carbon black, 3-8 parts of filler, 0.5-3 parts of microsphere foaming agent, 0.5-3 parts of chemical foaming agent, 1-3 parts of silicone elastomer and 2-5 parts of cell regulator.

The invention discloses an inorganic high-molecular polymer soil stabilizer and a preparation method thereof. The inorganic high-molecular polymer soil stabilizer comprises a solid component raw material and a liquid component raw material, the solid component raw material comprises an aluminosilicate material; the liquid component raw materials comprise an alkali activator solution and sulfonated oil. According to the inorganic high-molecular polymer soil stabilizer and the preparation method, the curing strength and the dry shrinkage deformation resistance of cured soil are improved, and the problem that the strength attenuation is large after the soil stabilizer is soaked in water for a long time is solved; the preparation method is simple, the curing agent can be distributed more uniformly in the soil through the method, the curing effect of the inorganic high-molecular polymer is exerted to the maximum extent, and the preparation method is well compatible with existing construction machinery during engineering application.

The invention relates to a transparent acrylic double-sided foam adhesive tape which comprises an axle center pipe, an adhesive and a PE (polyethylene) base film, wherein the adhesive is attached to the PE base film. The PE base film is wound on the axle center pipe. The invention is characterized in that the adhesive is prepared from the following components in parts by weight: 100 parts of propenyl monomer, 15-20 parts of acrylic acid, 9-18 parts of hollow glass microsphere, 12-15 parts of silicon dioxide, 12-13 parts of dodecathiol, 1-10 parts of reaction aid, 12-14 parts of nonionic surfactant, 11-13.5 parts of conversion agent, 3.5-3.8 parts of inorganic colors, 2-12 parts of silica, 0.2-20 parts of porous filler, 0.8-0.9 part of isopropyl thiaanthracenone, 0.9-10 parts of diphenyl ketone, 1-2 parts of 4-methyl phenyl ketone, 0.87-0.93 part of polyisobutylene, 0.15-0.17 part of 1,6-hexanediol diacrylate, 0.20-0.23 part of defoaming agent, 0.25-0.27 part of antioxidant, 0.88-1.2 parts of flame retardant and 1-10 parts of other additives.