128results about How to "High tensile bond strength" patented technology

The invention discloses and provides organic silicon modified styrene-acrylic emulsion for a ceramic tile back adhesive and a preparation method thereof, and relates to the field of coating. The performance such as the drying speed, the water-resistant performance and the stretch bonding intensity of the styrene-acrylic emulsion system can be improved. The organic silicon modified styrene-acrylic emulsion can be used for the ceramic tile back adhesive, and the process requirement of pasting immediately after the brushing can be met. The organic silicon modified styrene-acrylic emulsion disclosed by the invention is prepared from the following raw materials in parts by weight: 0.5 to 3 parts of organic silicon modified monomers, 15 to 25 parts of styrene, 25 to 35 parts of alkyl acrylate, 0.6 to 1 part of unsaturated carboxylic acid, 0.6 to 2 parts of functional crosslinking monomers, 1 to 4 parts of emulsifying agents, 0.2 to 0.4 part of water-soluble peroxide initiators, 0.1 to 0.2 part of oxidization-reduction initiators, 0.1 to 5 parts of pH regulators and 45 to 60 parts of deionized water, wherein the weight part sum of the organic silicon modified monomers, the styrene, the alkyl acrylate, unsaturated carboxylic acid and the functional crosslinking monomers is 50 to 55 parts. The organic silicon modified styrene-acrylic emulsion for the ceramic tile back adhesive disclosed by the invention is applicable to the ceramic tile back adhesive.

The invention belongs to the field of two-component silicone structural adhesives, and particularly relates to a high-elongation two-component silicone structural adhesive and a preparation method thereof. The silicone structural adhesive comprises a component A and a component B; the component A comprises, by mass, 40-100 parts of basic polymers, 40-80 parts of nano calcium carbonate, 0.5-2 parts of ultraviolet light absorber and 5-10 parts of polydimethylsiloxane; the component B comprises, by mass, 40-100 parts of color paste, 5-25 parts of silane modified polymers, 0.5-2 parts of dewatering agents, 40-80 parts of cross-linking agents, 10-50 parts of coupling agents, 0.2-3 parts of organic bismuth catalysts, wherein the color paste comprises 100 parts of polydimethylsiloxane, 50 parts of high structure carbon black and 5 parts of gas-phase white carbon black; the component A is mixed with the component B according to the mass ratio ranging from 7:1 to 14:1. The silane modified polymers are added to the silicone structural adhesive, the elongation at the maximum tensile bonding strength can be effectively increased, and the high-elongation two-component silicone structural adhesive is suitable for structural bonding and sealing of super high-rise glass building curtain walls.

The invention relates to a water-borne epoxy resin flooring paint, and belongs to the technical field of chemical materials. The water-borne epoxy resin flooring paint comprises finishing paint and priming paint, the finishing paint comprises the following components in parts by mass (100 parts in total): 73-80 parts of polyurethane, 20-27 parts of water-borne auxiliary B, the 20-27 parts of water-borne auxiliary B contains 5-8 parts by mass of dispersing agent, 2-3 parts by mass of preservative, 5-8 parts by mass of feeling agent and 5-8 parts by mass of wetting agent; the priming paint comprises a component A, an epoxy resin hardener in a mass ratio of 1: 2.5, the component A (100 parts in total) comprises 60-75 parts by mass of epoxy resin, 2-3 parts by mass of pigment, 18-21 parts by mass of filler, and 1-20 parts by mass of water-boron auxiliary A; and the water-boron auxiliary A comprises the dispersing agent, the preservative, the feeling agent and the wetting agent. According to the water-boron epoxy resin flooring paint, the problem that the existing flooring paint is bad in skid resistance is overcome.

The invention discloses a water-retaining, thickening and reinforcing additive for cement mortar and cement mortar containing the additive, wherein the additive is corn straw cellulose or/and modified corn straw cellulose. The water-retaining, thickening and reinforcing additive for cement mortar and the cement mortar containing the additive, disclosed by the invention, have the beneficial effects that the water-retaining, thickening and reinforcing additive for cement mortar is a green environment-friendly product which is free from toxicity, peculiar smell, pollution and corrosivity; if the water-retaining, thickening and reinforcing additive for cement mortar, disclosed by the invention, is doped into cement mortar, the water-retaining property of mortar can be effectively improved; the water-retaining property of freshly mixed mortar is more than 90% and meets standard requirements; simultaneously, the intensity of mortar is obviously increased; the use amount of cement is effectively reduced; the intensity of mortar is increased by above 25%; the 14d tensile adhesive intensity is increased by above 13%; the cost of the water-retaining and thickening material is reduced by above 16%; a utilization way of the industrial by-product, namely cellulose, separated from corn straws, is effectively provided; furthermore, the utilization value is higher. The cost of the water-retaining, thickening and reinforcing additive for cement mortar, disclosed by the invention, is 4000-8000 yuan/ton, and the water-retaining, thickening and reinforcing additive for cement mortar, disclosed by the invention, is wide in source of used raw materials, proper in cost, convenient to use, high in operability and beneficial to popularization.

The invention belongs to the field of building materials, and in particular relates to anti-crack plaster mortar for an outer wall of a building and a method for preparing the anti-crack plaster mortar. The anti-crack plaster mortar for the outer wall of the building comprises the following raw materials in percentage by weight: 30 to 40 percent of cement, 4 to 10 percent of blend, 30 to 55 percent of fine aggregate, 8 to 15 percent of heavy calcium carbonate, 2 to 5 percent of polymer rubber powder, 0.4 to 1.2 percent of anti-crack fiber, 0.2 to 0.6 percent of wood fiber and 0.4 to 1.2 percent of a thixotropic lubricant. The anti-crack plaster mortar for the outer wall of the building is high in tensile adhesive strength and high in workability and flexibility; a water leakage crack is not formed in plaster after eighty high-temperature to water-spraying cycles and thirty heating to freezing cycles; phenomena of chalking, hollowing, peeling and the like are avoided; the anti-crack plaster mortar is high in crack resistance, good in construction property and low in cost, and does not stick to a tool during construction.

The invention discloses a grouting material for an assembly type building reinforcement connection sleeve. The grouting material is prepared from the following raw materials in percentage by weight: 45-60% of cement, 30-45% of fine aggregates, 1-2% of an enhancer, 0.05-0.1% of a de-foaming agent, 7-10% of a phosphogypsum composite expanding agent, 0.5-0.8% of a polycarboxylic acid water reducer, 0.05-0.09% of a retarder, and 0.08-0.2% of an early strength agent, wherein the phosphogypsum composite expanding agent is a mixture of modified phosphogypsum, phosphorus slag micro powder and wollastonite. According to the grouting material disclosed by the invention, continuously graded fine sand and quartz sand are used as fine aggregates to match with the cement for use, the fine aggregates andthe cement are reasonably proportioned, and the phosphogypsum composite expanding agent is added, so that cement paste is very compact after being hardened; the grouting material is greatly improvedin strength, is matched with the enhancer, the retarder, the polycarboxylic acid water reducer and the early strength agent for use, so that mortar has good water-retaining property, plasticity and flexibility; and tensile bonding strength as well as mortar and brickwork tensile bonding strength are obviously improved, comprehensive properties are good, and using requirements of an assembly type building are met.

The invention provides gypsum-based self-leveling repair mortar and a preparation method thereof. The repair mortar is prepared from the following components in parts by weight: 40 to 60 parts of building gypsum, 40 to 60 parts of quartz sand, 0 to 10 parts of stone powder, 0.1 to 0.2 part of a gypsum retarder, 0.01 to 0.02 part of a water-retaining agent, 0.01 to 0.02 part of rubber powder, 0.05to 0.15 part of a defoaming agent and 0.1 to 0.15 part of a water reducing agent. The preparation method comprises the following steps: uniformly mixing the building gypsum, the quartz sand and the stone powder in proportion, sequentially adding the gypsum retarder, the water-retaining agent, the rubber powder, the defoaming agent and the water reducing agent, uniformly mixing, adding water, and uniformly stirring and mixing to obtain the repair mortar. The repair mortar is high in tensile bonding strength, capable of achieving rapid repairing of gypsum-based self-leveling ground, convenient to repair, high in efficiency and free of shrinkage and cracking on the ground in the later period, and the problem that the gypsum-based self-leveling ground cracks and cannot be completely repaired is well solved.

The invention relates to a mortar and provides an adhesive mortar for a ceramic tile. The adhesive mortar for the ceramic tile contains tailings, is high in tensile adhesive strength and low in cost, does not pollute the environment, and has a heat preservation effect. The adhesive mortar for the ceramic tile comprises the following materials in parts by weight: 30-35 parts of ecological cement, 0.5-0.6 part of polyving akohol, 30-50 parts of tailings, 5-10 parts of polypropylene monofilament, 1.3-2.8 parts of a defoamer, 12-17 parts of a water reducer, 17-19 parts of coal ash, 7-9 parts of glass bead, 21-32 parts of ceramic sand, 1.5-2.5 parts of cellulose ether, 4-8 parts of redispersible powder and 70-90 parts of water, wherein the ceramic sand comprises sand grains with the grain diameters of 0.10-2.0 mm and with a plurality of pores not communicated in the surfaces.

The invention discloses a preparation method of a flame-retarding cement-based interface mat used in exterior wall external insulation. The method is characterized in comprising the steps that: quartz powder, a solid fire retardant, and cement are well mixed, such that inorganic powder is prepared; high-molecular polymer emulsion, deionized water, an antifoaming agent, and a bactericide are well mixed, such that a polymer agent material is obtained; the inorganic powder and the polymer agent material are well mixed in a mixing apparatus, such that a flame-retarding cement-based interface slurry is prepared; the flame-retarding cement-based interface slurry is coated onto a surface of a reinforced glass fiber mat by using an adhesive tape coating machine; the mat is subject to bake-drying, rectifying, edge-trimming, and coiling, such that the flame-retarding cement-based interface mat used in exterior wall external insulation is prepared. With the provided method, the prepared flame-retarding cement-based interface mat can be composed onto surfaces of inorganic insulation materials such as rigid foam polyurethane, phenol formaldehyde, and XPS, such that surface flame-retardance of the insulation plates can be improved, and tensile adhesive strength between the insulation plates and polymer mortar can improved. The preparation method is advantaged in simple technology, low one-time investment, and high processing efficiency.

The invention relates to vinylacetate nonsoap emulsion, redispersible rubber powder and preparation methods thereof. The vinylacetate nonsoap emulsion comprises the following components in percentage by mass: 5 to 10 percent of protective colloid, 0.1 to 0.5 percent of sodium bicarbonate, 30 to 60 percent of vinylacetate, 5 to 30 percent of tertiary vinyl carbonate, 5 to 30 percent of butyl acrylate, 0.5 to 5 percent of emulsifier, 0.1 to 0.5 percent of initiator and the balance of water. The redispersible rubber powder is prepared by spray-drying the mixture of the following components in percentage by mass: 70 to 80 percent of vinylacetate nonsoap emulsion, 5 to 15 percent of protective colloid, 5 to 15 percent of anticaking agent and the balance of water. Compared with the conventional dispersible polymer powder, the redispersible rubber powder can improve the new stirring performance, mechanical performance and adhesive performance of modified mortar obviously.

The invention provides a low linear expansion coefficient epoxy resin based cement concrete road fast repairing material and a preparation method thereof, and belongs to the technical field of a building material. The epoxy resin based cement concrete road fast repairing material provided by the invention is prepared from the following ingredients in parts by weight: 100 parts of epoxy resin, 30 to 50 parts of curing agents, 5 to 10 parts of toughening agents, 5 to 15 parts of diluents, 50 to 100 parts of modified coal gasification slag, 50 to 100 parts of waste ceramic powder and 400 to 600 parts of medium sand. The modified coal gasification slag is prepared from coal gasification slag through roasting activation and modification reaction. The epoxy resin based cement concrete road fastrepairing material provided by the invention has the advantages of low linear expansion coefficient, small deformation quantity along with temperature change, high intensity, good bonding performance,high durability and low production cost, and is favorable for the popularized application of the epoxy resin mortar.

The invention relates to the field of cement and concrete. The invention discloses special mixed cement for on-site preparation of concrete as well as a preparation method and application. Except formixing and grinding cement clinker and other raw materials, the mixed cement is prepared from the following components in percentage by mass: 60%-80% of general Portland cement of the 42.5 grade or above, 3.0%-6.0% of gypsum, 5%-15% of limestone, 2%-29% of an admixture and 0.5%-3.0% of a functional additive. The general Portland cement with the grade of 42.5 or above meets the requirements of GB175, and parameters of the general Portland cement are controlled such that the mass ratio of the micro powder less than or equal to 3 [mu]m is less than or equal to 10%, the one-day compressive strength is less than or equal to 12 MPa, the 3-day compressive strength is more than or equal to 20 MPa, the 28-day compressive strength is more than or equal to 45 MPa, the water consumption of the standard consistency of the cement paste is less than or equal to 28%, the alkali content is less than 0.6% in terms of 0.658 K2O + Na2O, and the chloride ion content is less than 0.06%. The raw materials are wide in source, the mixed cement can be directly used for preparing or premixing concrete on site, no admixture or functional additive needs to be added again, crack resistance, workability and themechanical property of the concrete are improved, and construction operation is simplified.

The invention belongs to a lightweight dismantle-free heat insulation template integrated composite heat insulation system and manufacturing technology thereof. The lightweight dismantle-free heat insulation template integrated composite heat insulation system comprises a cast-in-place concrete base wall body, a heat insulation template inner protective layer, an organic heat insulation material layer, seamed reinforced glass wool or a rock wool board inorganic material insulation layer, and a polymer mortar layer are sequentially arranged on the outer side of the cast-in-place concrete base wall body, and are fixedly mounted and connected with the cast-in-place concrete base wall body through pre-embedded anchoring connecting parts, and the outer surface of the seamed reinforced glass wool or the rock wool board inorganic material insulation layer is coated with the polymer mortar layer. The lightweight dismantle-free heat insulation template integrated composite heat insulation system has the advantages that structure design is reasonable, the lightweight, high intensity and low heat conductivity performance are achieved, the comprehensive cost can be lowered, the load of buildings is relieved, the whole thickness of the mortar layer on the outer surface of the wall body is advantageously controlled, and the safety of anti-cracking, anti-falling-off and anti-fire is improved.

The invention discloses a modified polyether amine curing agent and a preparation method thereof. The modified polyether amine curing agent is prepared from, by weight, 40-60 parts of a polyether amine curing agent, 20-30 parts of a phenol synergy additive, 5-20 parts of phenylcarbinol and 5-20 parts of 2,4,6-tris(dimethylaminomethyl)phenol. The prepared modified polyether amine curing agent is small in viscosity, long in gelation time and easy to prepare. An epoxy resin paint film prepared through the modified polyether amine curing agent is good in impact resistance, high in tensile adhesive strength, good in wear resistance and excellent in overall performance.

The invention discloses a preparation method of a cracking-resistance and maintenance-free plastering mortar, which comprises the following steps of: (1) preparing raw materials; (2) feeding; and (3) stirring and mixing, so as to prepare the improved plastering mortar. The invention also discloses a product prepared by using the preparation method and a construction method of the product. The method provided in the invention has the advantages of simple preparation process, easiness in implementation and high production efficiency. The product provided in the invention has the advantages of reasonable formulation design, high strength, good workability, easy construction, better stretching and bonding strength, difficulty in cracking, generation of no dusting or hollowing, less maintenance or no maintenance, and the maintenance cost is effectively reduced. The construction method provided by the invention has the advantages of simple process, easiness in implementation and good plastering effect, the construction period is shortened, the construction efficiency is effectively improved and the construction method is beneficial to wide generalization and application.

The invention relates to a special moisture-holding thickening agent for masonry mortar and a production method thereof. The special moisture-holding thickening agent is composed of a moisture-holding thickening component, a water reducing component and an enhancing component, wherein the moisture-holding thickening component is prepared from the following materials in parts by weight: 17-22 parts of desulfurized gypsum, 45-55 parts of secondary fly ash and 25-35 parts of hydroxypropyl methyl cellulose; the water reducing component is prepared from 15-25 parts of wood celluloses in parts by weight; and the enhancing component is prepared from the following materials in parts by weight: 18-22 parts of carbide slag, 7-13 parts of calcium lignosulphonate, 750-830 parts of fine sand and 57-63 parts of primary fly ash. Through applying the special moisture-holding thickening agent to masonry mortar, the adhesiveness and bonding strength between a pressed concrete brick and masonry mortar can be improved, the purposes of reducing the overall shrinkage of a pressed concrete brick masonry and improving the shearing strength of the masonry are achieved, and the problem that micro-cracks appear on wall bodies because the binding power between a pressed concrete brick and masonry mortar is poor can be solved.

The invention belongs to the technical field of airport parking lane maintenance, and particularly relates to a rapid repairing material for an airport parking apron and a preparation method thereof.The repairing material is prepared from the following components: high-belite sulphoaluminate cement, wollastonite powder, a powder defoaming agent, a water repellent, quartz powder, acrylic acid redispersible latex powder, a polycarboxylate superplasticizer, a medium-term early strength agent, an early retarder, low-viscosity HPMC, fine aggregates, heat-resistant fibers and polymer fibers. The repairing material disclosed by the invention has high bonding force, and is free from hollowing and cracking after being repaired; the strength can reach C65 or above; the toughness is high, and the impact resistance is more than 20 times that of common concrete; low-temperature cyclic freezing and thawing at -40 DEG C or below can be resisted; acid and salt corrosion resistance; thermal expansionand cold contraction coefficients are consistent; synchronous displacement between cold and hot circulation and original concrete is ensured; and moreover, navigation can be performed only by maintaining for 2 hours after construction, and therefore, the rapid repairing material for an airport parking apron is suitable for rapid maintenance and repair of airport roads.