39results about How to "High-strength adhesion" patented technology

The present invention discloses a special high strength grouting material for connecting a reinforcement sleeve. The special high strength grouting material for connecting the reinforcement sleeve comprises grouting material powder and water, wherein the grouting material powder is prepared from the following raw materials in percentage by weight: 45% to 50% of cement, 0.1% to 0.3% of a water reducing agent, 0.06% to 0.1% of a defoamer, 1% to 3% of a water retention tackifier, 0.025% to 0.05% of a composite retarder, 1% to 2% of a composite expansion agent; and and the balance of quartz sand, totalling 100, wherein the mass ratio of the grouting material powder to the water is 1 to (0.23-0.28). The special high strength grouting material for the connecting reinforcement sleeve provided by the present invention has the characteristics of high strength, high adhesion and slight expansion with no shrinkage; the high strength grouting material can be poured into the reinforcement sleeve to enable fixed connection formed between reinforcements and between the reinforcements and the sleeve, and has excellent durability.

The invention discloses a coal blending method for preparing high-activity high-strength coke. The coal blending method comprises a step of blending coking coal, wherein the coking coal participating in coal blending comprises the following components in percentage by weight: 20 to 70 percent of Xinjiang strongly caking coal, and the balance of one or a mixture of more of charred coal, lean coal,fat coal, gas coal and 1/3 charred coal; and after blending, the air-dried moisture is 1.0 to 1.7 percent, the dry basis ash is 8 to 12 percent, the dry basis volatile is 22 to 26 percent, the sulfurcontent is less than 0.6 percent, the caking index is 82-100, the maximum value of Gieseler fluidity is 1.9-3.0, the average value of vitrinite reflectance is 1.1 to 1.4 percent, and in the dry basisash, CaO is 10 to 15 percent, Fe2O3 is 9 to 15 percent and MgO is 3 to 5 percent. In the method, the strongly caking coal produced in Xinjiang and considered to be poor traditionally is effectively utilized, the advantages of high caking property, low ash, low sulfur, cheapness and high availability of the strongly caking coal are exerted, and the high-activity high-strength coke is produced at low cost for blast furnaces.

The invention relates to a combination of a polyurethane modified epoxy resin and a modified secondary amine delayed-hardening agent as a primer of polyurea elastomer. The primer provided by the invention comprises the polyurethane modified epoxy resin as A component and the modified secondary amine delayed-hardening agent as B component, wherein the synthesis route of the A component comprises raw material dehydration, polyurethane prepolymer synthesis and EP grafting copolymerization; the synthesis route of the B component comprises Michael addition and monoepoxide addition. With the curing rate of A: B being 6: 1, the primer can be used after aging for 5-10 minutes. Applied to coat polyurea elastomer as a primer, the combination provided by the invention has good system adaptability and superstrong adhesive property; and after the polyurea elastomer is sprayed on the surface of a sandblasting steel matrix in construction, the adhesive strength can reach over 10Mpa and the peeling strength can reach more than 50kN/m.

The invention belongs to the technical field of chemical engineering, and relates to technology for preparing rock salt concrete by potassium ore tail salts, tailings and waste salts and applications. The invention is characterized in that the raw materials comprises: 30-85% of rock salts, 2.5-15% of magnesium oxide, 2.0-15% of magnesium chloride, 5.5-15% of water, 5-25% of fillers; the production characteristics of the rock salt concrete are that: (1) the production process is simple, and rock salt concrete slurry can be prepared by proportionally mixing magnesium oxide, a magnesium chloride aqueous solution, fillers, and rock salts; (2) the main raw materials required by the production are various halites, tail salts, waste salts or salt-containing slag generated during mining, and the production has low cost and no pollution; (3) the production is energy-saving and environment-friendly, and facilitates three-waste comprehensive utilization and environment protection; (4) the rock salt concrete can be used for backfill of salt mine gob areas, mine pits or roadways; the rock salt concrete can be used for pouring of various building foundations, salt pan pool plates and dam revetment in salt lake regions.

The invention belongs to the technical field of interface agent, and discloses a composite polymer emulsion high-strength interface agent for a vitrified brick and a preparation method thereof. The interface agent comprises the following components by the mass fraction: 45-65% of a small-particle-size styrene-acrylic emulsion, 15-25% of a pure acrylic emulsion, 5-10% of a small-particle-size styrene-butadiene emulsion, 0.2-0.5% of a synergistic agent, 0.1-0.3% of a dispersant, 0.3-1.0% of a wetting agent, and the balance water. With adopting of the small-particle-size styrene-acrylic emulsion, with cooperation of the smaller-particle-size styrene-butadiene emulsion as a penetrating agent, and with collocation use of the water-based synergistic agent, the water solubility of the two kinds of emulsions are effectively improved, the compatibility of the emulsions is improved, the adhesion force and stability of an interface material are increased, the effect of penetrating into the back of a brick with low water absorption rate can be realized, the pulling strength of the material is also increased, the comprehensive effect of an acrylic emulsion is fully played, two-way permeability is achieved, and the adhesion force of a cement-based material is fully played.

The invention discloses a water stopping construction method for a horizontal seam of a face rock-fill dam panel. The water stopping construction method comprises the following steps: firstly, setting connection seams of first-stage and second-stage concrete panels into the crease line styles; secondly, forming grooves in seam closures of the connection seams on the water attaining surfaces of the first-stage and second-stage concrete panels, perpendicular to the face rock-fill dam inclination and carrying out construction and scabbling treatment; thirdly, filling a polysulfide sealant water stopping filler into the grooves; fourthly, water stop plates of which the width is larger than the groove mouth width of the grooves are attached to the groove mouths of the grooves; fifthly, coating a brushing-type plastic filler protective layer of which the width is larger than that of the water stop plate on the outer surface of each water stop plate. The water stopping construction method has the advantages that as the crease line connection seams are adopted, the first-stage and second-stage panels can be connected more securely, the construction is convenient and the operation is simple; as the polysulfide sealant water stopping filler is filled into the rectangular grooves, embedded into the rectangular seams and kept at the embedding part to perform a water stopping function, and flows into the connection seams from the embedding part under the action of water pressure, the water stopping effect of the connection seams is greatly improved.

The invention discloses a method and a device for producing a prestressed concrete cylinder pipe by surfactant, and belongs to the technical field of the method and the device for producing the prestressed concrete cylinder pipe. An annular prestressed high-strength steel wire is wound on a cylindrical thin steel plate tube at the outer surface of a pipe core. The method is characterized by also comprising the following steps of: spraying a layer of surfactant of which the thickness is 1.5-2.5mm on the surface after winding the annular prestressed high-strength steel wire on the cylindrical thin steel plate tube at the outer surface of the pipe core; processing the interface bonded between a metallic material and a non-metallic material, and then spraying a dry hard cement mortar protection layer by a roll injection machine. According to the method, the adhesive bonding performance between the surface of a thin steel tube of the pipe core, the surface of the annular prestressed high-strength steel wire and the cement mortar protection layer is enhanced by processing the interface between the metallic material and the non-metallic material; the protection effect of the cement mortar protection layer is enhanced, and the durability and the service life of the prestressed concrete cylinder pipe are improved. The device can finish the method.

The invention discloses a motion based stripping dry adhesion mechanism and an implementation method. The mechanism comprises two dry adhesion structures which are each formed by an inclined flaky structure. The inclination directions of the two dry adhesion structures are opposite, and the two dry adhesion structures are arranged symmetrically. Each dry adhesion structure is mounted on a sliding block of a horizontal ball screw, each horizontal ball screw is driven by a horizontal motor, and horizontal left-and-right motion of each dry adhesion structure is achieved. The horizontal motors are connected to a cross beam through supports. The two ends of the cross beam are mounted on sliding blocks of vertical ball screws, each vertical ball screw is driven by a vertical motor, and vertical up-and-down motion of the cross beam can be achieved under drive of the vertical motors. An adhered object is put on a horizontal platform below the dry adhesion structures. When the two dry adhesion structures are controlled to horizontally move in the inclination directions, object adhesion grabbing is achieved. When the two dry adhesion structures are controlled to horizontally move in the directions opposite to inclination directions, efficient and fast stripping and releasing of the adhered object are achieved. The motion based stripping dry adhesion mechanism can be widely used for the field of dry adhesion of belt conveyors, mechanical arms, micro suction cups and the like.

The invention relates to a waterproof material for bonding solids, namely plastic-steel mud, which is characterized in that: the waterproof material for bonding solids, namely the plastic-steel mud, comprises an A component and a B component; the A component comprises the following contents in percentage by mass: 25 to 45 percent of epoxy resin, 1 to 5 percent of phthalic acid ester, and the rest additive being the combination or one of calcium carbonate, CCR, talcum powder and extra fine talc powder; the B component comprises the following contents in percentage by mass: 20 to 35 percent of polyamide curing agent, and the rest additive being the combination or one of calcium sulphate, calcium carbonate and talcum powder. The plastic-steel mud has waterproof and mildewproof performance, high adhesive force and tough structural strength, applies to the bond of ceramics, metal, rigid plastics, glass, concrete, stone and various materials, as well as the water prevention of lines, hides no dirt, and is resistant to wear, acid, alkali, corrosion and high-low temperature. In construction process, the plastic-steel mud has no pollution source or pungent odor, and does no harm to human body, which is a novel waterproof material for indoor decoration design.

The invention discloses self-healing polyurethane waterproof coating and a preparation method thereof. The self-healing polyurethane waterproof coating comprises a component A and a component B, wherein the component A comprises terpene phenolic resin, a plasticizer, polyester polyol, polyether polyol A, diisocyanate and a catalyst; the component B is prepared from the following components: a plasticizer, asphalt, polyether polyol A, polyether polyol B, filling oil, a filler, a thixotropic agent, a dispersing agent, a chain extender, a defoaming agent and a catalyst; the number-average molecular weight of the polyether polyol A is 2,000 to 4,000; the number-average molecular weight of the polyether polyol B is 300 to 500; the filler is alkaline earth metal hydroxide; the mass ratio of thecomponent A to the component B is 1:(2-4). The self-healing polyurethane waterproof coating disclosed by the invention has the tensile strength of polyurethane coating and the self-healing property ofnon-cured rubber asphalt waterproof coating, and also has the characteristics of excellent adhesion with the existing waterproof coiled material and the like.

The invention provides an antistatic polyester powder coating. The antistatic polyester powder coating comprises the following components in parts by mass: 50-80 parts of polyester resin, 10-20 parts of conductive filler, 0.2-0.6 part of conductive carbon black, 8-12 parts of auxiliaries, 2-4 parts of pigment and 15-30 parts of inorganic filler. According to the antistatic polyester powder coating provided by the invention, the conductive filler and the conductive carbon black are added on the basis of mixing the polyester resin, the auxiliary agent, the pigment and the filler, and the other components are reasonably proportioned, so that the prepared polyester powder coating has excellent conductive performance, and can prevent static electricity from being generated on the surface of a coating film, and the polyester powder coating also has high leveling property, excellent toughness, strong binding power and high weather resistance, so that the polyester powder coating is widely applied to the field of powder coatings.

A refractory adhesive for repairing the liner of blast furnace or spraying it on the liner contains high-aluminium powder (30-75 portions), Guangxi clay (5-15), superfine powder (2-10), sodium hexametaphosphate (1-1.5) and water glass (15-50). Its advantages include high refractory temp up to 1800 deg.C, high adhesion, high compression strength, not shrinking and cracking at high temp, high resistance to wear and chemical corrosion, and quick solidification.

The invention relates to a reinforced concrete airtight door and a moulding processing technology thereof, which relate to the technical field of human defense equipment processing. A technical schemecomprises the following steps: step A: making a frame; step B: welding hinge ears on the side wall of the frame; step C: pouring concrete in the frame to form a prefabricated door leaf; step D: performing maintenance treatment on the door leaf; step E: prefabricating angle steel; step F: performing calibration and straightening treatment on the angle steel, and making a door frame; step G: assembling between a door sill and the door frame; and step H: performing hinged assembly between the door leaf and the door frame. The reinforced concrete airtight door and the moulding processing technology thereof are advantageous in that calibration and straightening can be performed on the door frame, so that the airtightness between the door frame and the door leaf is better in a process of usage,and matching is more precise.

The invention relates to a multipurpose high temperature resistant ceramization agent. The multipurpose high temperature resistant ceramization agent comprises an ingredient A and an ingredient B; the ingredient A is composed of nano aluminium oxide, nano ceramic powder, a color matching agent, and a resin; and the ingredient B is composed of a resin, a curing agent, and a modifying agent. In applications, the two ingredients are mixed to be uniform, and tools such as an electric glue gun are used for smearing, so that bonding and repairing of joints and damaged parts are realized. After curing, a ceramic-similar surface is obtained, and possesses lifelong water resistance and mildew resistance, high strength, adhesive force, toughness, and structure strength. The multipurpose high temperature resistant ceramization agent is suitable to be used for bonding of a plurality of materials such as ceramic, metal, rigid plastic, glass, concrete, and stone, and possesses water resistance, stain resistance, wear resistance, acid and alkali resistance, corrosion resistance, high temperature resistance, and low temperature resistance. In construction, no pollution source or pungent smell is generated, the multipurpose high temperature resistant ceramization agent is nontoxic for human body, is a novel water resistance material used for interior decoration, and can be used for replacing conventional glass cement and water-proofing agent.

The invention relates to the technical field of paint and manufacturing thereof, in particular to a quality inspection nitro putty used for coating of a glass reinforced plastic base material and a preparation method thereof. The nitro putty is prepared from, by mass percentage, 5%-10% cellucotton, 15%-25% mixed solvent, 45%-65% pigments and fillers, 5%-10% alkyd resin and 2%-5% additive, and thetotal mass percentage of each component above is 100%. The prepared quality inspection nitro putty is one-component nitro putty, wherein the alkyd resin greatly enhances the adhesion of the nitro putty, so that the nitro putty can be attached to the glass reinforced plastic base material, besides, no harmful additives are added to the nitro putty, and the nitro putty is environmentally friendly and safe.

The invention discloses a preparation method of an injectable polyethylene glycol preparation loaded with alendronate sodium and an application thereof. The preparation at least comprises two independent solutions, wherein a solution 1 is prepared from four-arm-polyethylene glycol-aldehyde group; a solution 2 containsg four arms-polyethylene glycol-amino groups; the hydrogel is dissolved in the solution 1 or the solution 2, or is independently dissolved to form a solution 3; wherein the pH value of the mixed solution of the preparation obtained by mixing the solutions is 4.0-9.0. The four-arm-polyethylene glycol-aldehyde groups and four-arm-polyethylene glycol-amino groups are adopted for in-situ gelling through Schiff base bonds, intraoperative operation is convenient, and the gelling speed is high. Meanwhile, amino on collagen on the surface of the tissue and alendronate sodium in the solution can be quickly and chemically bonded with the four-arm-polyethylene glycol-aldehyde group through a Schiff base bond.

The invention discloses an oil filter adhesive. The adhesive is prepared from 3-4 parts of a sulfonated modified graphite powder/silicon micropowder composite, 15-25 parts of silane modified epoxy resin, 5-8 parts of butyl rubber, 1-2 parts of diaminodiphenyl methane, 0.5-1 part of bis(2-ethylhexyl) phthalate, 1-1.5 parts of a silane coupling agent KH-550, 0.4-0.7 part of an initiator, 0.3-0.5 part of a stabilizer and 0.4-0.6 part of an emulsifier. The prepared oil filter adhesive has the advantages that the adhesive has high adhesion performance through the synergistic effect of all components; meanwhile, the corrosion resistance is high, the high-temperature resistance is excellent, after curing, the surface is flat, the toughness is good, the service life is long, and the sealing performance of a filter is ensured.

The invention relates to the technical field of glass films, and in particular, relates to a novel nano energy-saving membrane. The novel nano energy-saving membrane comprises a negative ion reactionlayer, an HC anti-glare layer, a glass substrate, an HC nano anti-infrared barrier layer, a nano UV-resistant layer, a pressure-sensitive adhesive layer and a release layer, wherein the HC anti-dazzlelayer covers the top surface of the glass substrate, the top surface of the HC anti-dazzle layer is fixedly connected with the negative ion reaction layer, and an HC nano anti-infrared barrier layer,the nano UV-resistant layer, the pressure-sensitive adhesive layer and the release layer are sequentially arranged on one side, deviating from the HC anti-dazzle layer, of the glass substrate outwards. The HC anti-infrared barrier layer is arranged, so heat energy invasion can be blocked to the maximum extent, the temperature balance in the relative space is maintained, the real effects of energyconservation, consumption reduction and emission reduction are achieved, and the environment is well protected; through the arrangement of the negative ion reaction layer, the negative ion reaction layer can be decomposed and release high-concentration negative oxygen ions when meeting light, and air in the space can be kept fresh at any time.