1174 results about "Water repellent" patented technology

The invention relates to the technical field of filling materials, and particularly discloses an ardealite-based high-strength anti-seepage filling material and a preparation process thereof, the ardealite-based high-strength anti-seepage filling material comprises 50%-65% of pretreated ardealite, 15%-25% of Portland cement, 5%-15% of superfine slag powder, 5%-10% of electrolytic manganese residues, 5%-8% of silica fume, 3%-6% of metakaolin, 2%-4% of a composite alkali activator and 0.5%-1.2% of a polycarboxylic acid water reducer, 0.3%-0.8% of an organic silicon water repellent and 0.05%-0.1% of cellulose ether; according to the invention, through chemical reaction of Mn < 2 + > in the electrolytic manganese residue and SO4 < 2-> in the phosphogypsum, micron-sized manganite crystals (MnAl2 (SO4) 4. 22H2O) are generated to actively fill internal micro-cracks of the material, so that a filling body is endowed with a self-repairing function and the impermeability is improved, and a composite alkali activator composed of NaOH and water glass is used for synergistically activating potential gelling activity of the superfine slag powder and the silica fume, so that the self-repairing filling material is prepared. And the formation of hydration products is accelerated, and 0.3-0.5 T of pulsed magnetic field is applied in the stirring process, so that the manganite crystals are guided to orderly grow along the expected stress direction of the filling body, and the compressive strength is improved.

The invention relates to the technical field of cement-based soil curing agents, and particularly discloses a roadbed soil cement cementing material curing agent and a use method thereof. The curing agent comprises Portland cement, coal gangue particles, fly ash, silica fume, an anti-permeability reinforcing agent, a water reducing agent and fibers. The anti-permeability reinforcing agent is prepared by the following steps: (1) dispersing polyaluminum sulfate powder into absolute ethyl alcohol, then adding a silane coupling agent and a water repellent agent, and heating and preserving heat under a stirring condition; and then separating out solids to obtain the modified polyaluminum sulfate. And (2) adding the modified polyaluminum sulfate into water, heating and preserving heat under a stirring condition, drying by distillation to remove water, and grinding the obtained solid product. The curing agent provided by the invention not only reduces the adverse effect of acid soil on the stability of a formed soil consolidated body, but also improves the impermeability and the durability of the soil consolidated body.

The invention provides a preparation method of a waterproof flame-retardant multifunctional fabric, and belongs to the technical field of functional textiles. The preparation method comprises the following steps: heating dihydric alcohol until the dihydric alcohol is completely melted, adding diisocyanate, a flame retardant and a catalyst, reacting to obtain a polyurethane prepolymer, adding a chain extender for chain extension, then adding an end-capping reagent for end capping, cooling, adding an emulsifier to obtain a waterproof flame retardant emulsion, adding water to form a finishing agent, soaking a polyacrylonitrile pre-oxidized fiber fabric in the finishing agent for treatment, and drying to obtain the waterproof flame retardant fabric. And pre-drying and baking to obtain the multifunctional fabric. Polyhydric alcohol with a long alkane chain is adopted to carry out chain extension on a polyurethane prepolymer, the obtained waterproof agent has good film-forming property, can be firmly fixed on the surface of a fiber without the help of a cross-linking agent or an adhesive during application, and endows a modified textile with excellent washing fastness.

The invention relates to the technical field of building materials, in particular to impermeable waterproof dry-mixed mortar and a preparation method thereof. The impervious waterproof dry-mixed mortar is prepared from the following raw materials in parts by weight: 1400 to 1550 parts of machine-made sand, 380 to 420 parts of Portland cement, 60 to 80 parts of fly ash, 30 to 50 parts of expanded perlite, 10 to 20 parts of latex powder, 7 to 10 parts of sepiolite powder, 5 to 10 parts of nano wollastonite powder, 2 to 4 parts of hydroxyethyl methyl cellulose, 2 to 5 parts of sodium citrate, 10 to 20 parts of fiber reinforcing agent, 3 to 5 parts of impervious agent, 6 to 10 parts of waterproof agent, 2 to 4 parts of expanding agent and 3 to 6 parts of water reducing agent. The dry-mixed mortar prepared by the invention not only has excellent mechanical properties, but also has good impermeability and waterproof performance, and the service life of the dry-mixed mortar is prolonged to a certain extent while the quality of the dry-mixed mortar is effectively guaranteed.

The invention relates to the technical field of concrete, in particular to luminous pervious concrete and a preparation method thereof. The luminous permeable concrete is prepared from the following raw materials in parts by mass: 280-300 parts of cement, 870-900 parts of interval grading coarse aggregate, 70-80 parts of modified luminous powder, 30-40 parts of fly ash, 4-6 parts of a water reducing agent, 20-30 parts of a water repellent agent, 30-40 parts of epoxy resin, 3-5 parts of a silane coupling agent and 90-100 parts of water, and the interval grading coarse aggregate is prepared by mixing coarse aggregate with a small particle size of 4.95-9mm and coarse aggregate with a large particle size of 12.5-10mm according to a mass ratio of 1: 2; the surface of the modified luminescent powder is coated with silicon dioxide sol, and sodium borate is added for heat-resistant treatment. The light-emitting water-permeable concrete has compressive strength and water permeability, the light-emitting property is stable, and the hydrophobic and oleophobic corrosion resistance in the concrete is good.

Provided is an adhesion suppressing member that is configured to suppress a work piece from adhering to a work tool of a construction machinery. The adhesion suppressing member is formed in a plate shape and includes, on a front surface thereof, a resin material having a water repellent property. The adhesion suppressing member is installed at a predetermined portion of the work tool such that the front surface forms a part of a surface of the work tool held in contact with the work piece.

The invention relates to the technical field of waterproof agents for fabrics, and particularly discloses a fluoride-free waterproof agent for fabrics and a preparation method of the fluoride-free waterproof agent. The preparation method specifically comprises the following steps: dehydrating polyol / ester, adding isocyanate, heating to 80-90 DEG C, reacting for 2-3 hours, cooling, dropwise adding a chain extender, reacting for 0.5-1 hour at 45-48 DEG C, adding POSS, stirring for 1-2 hours at 45-48 DEG C, adding an acrylic monomer A for blocking, cooling, dropwise adding acid, stirring and neutralizing to obtain a prepolymer; pouring the prepolymer into water, stirring and emulsifying to obtain a POSS-PU emulsion; quickly stirring the POSS-PU emulsion, an acrylic monomer B, an emulsifier, water, a co-emulsifier, a pH regulator and the like to obtain a composite emulsion; homogenizing the composite emulsion until the composite emulsion has obvious blue light; and adding dodecanethiol and an azo amidine initiator, reacting at 68-70 DEG C for 3-7 hours, cooling, filtering and taking out to obtain the fluoride-free waterproof agent.

The invention relates to the technical field of high polymer materials, and provides a radiation refrigeration coating and a preparation method thereof.The radiation refrigeration coating is prepared from, by weight, 5-20 parts of heat reflection filler, 5-20 parts of heat radiation filler, 5-20 parts of common filler, 0.1-0.5 part of a thickening agent, 10-25 parts of aerogel paste, 0.25-0.75 part of a water repellent agent, 0.2-0.5 part of a defoaming agent, 0.3-1.5 parts of a dispersing agent, 0.1-0.3 part of a pH value regulator and 0.3-1 part of a sterilizing, anti-corrosion and anti-mildew agent, 0.1-0.5 part of a wetting agent, 25-40 parts of an acrylic emulsion, 1-2 parts of an anti-freezing agent, 2-4 parts of a coalescing agent and 15-30 parts of water; the functional coating with both high reflection and radiation refrigeration, provided by the invention, is remarkable in reflective insulation / radiation refrigeration effect, non-toxic, odorless, pollution-free and convenient to construct, and is an ideal decorative material.

The present invention discloses a tensile and wear-resistant washed kraft paper and its preparation process, which relates to the technical field of kraft paper. The process includes the following steps: Step 1: Add color paste, waterborne acrylic resin, preservative, reinforcing agent, softening agent, curing agent, and waterproofing agent into a solvent in sequence and stir evenly to obtain a sizing slurry; Step 2: Coat the sizing slurry on the base paper, and successively perform extrusion, ultraviolet light irradiation, first drying, ironing, and second drying to obtain the tensile and wear-resistant washed kraft paper. In this application, by preparing specific reinforcing agent and waterproofing agent and introducing them into the sizing slurry for sizing, the interfacial action between the sizing slurry and the base paper is effectively improved, thereby improving the tensile and wear resistance of the washed kraft paper while enhancing the flame retardant performance; it can achieve the purpose of replacing plastic, leather, and cloth with paper.

The invention provides a composite insulator with a cooling function and an embedded microcapsule hydrophobing agent and a preparation method of the composite insulator, and relates to the technical field of electric insulating materials. The composite insulator comprises an umbrella cover base material, the surface of the umbrella cover base material is provided with a cooling coating, and a microcapsule water repellent agent is embedded in the umbrella cover base material. The umbrella cover base material is silicone rubber or modified epoxy resin; the cooling coating is prepared from Al2O3 (at) TiO2 / PDA-BN, fluorocarbon resin, isopropanol, a dispersing agent and a flatting agent; the microcapsule water repellent agent is composed of a core layer and a shell layer, the core layer is made of fluorinated modified polystyrene / nano-silica microspheres, and the shell layer is made of polymer resin. The composite insulator has cooling and hydrophobic functions, the two functions are synergistic, the weather resistance of the insulator can be remarkably improved, the service life of the insulator in a severe environment is prolonged, and the defects that in the prior art, materials are fast in aging, poor in hydrophobic durability, single in function and the like are overcome.

The invention belongs to the technical field of ocean engineering materials, and particularly relates to an underwater concrete self-repairing material containing dynamic disulfide bonds as well as a preparation method and application of the underwater concrete self-repairing material. The underwater concrete self-repairing material containing the dynamic disulfide bond comprises the following components in parts by weight: 50-70 parts of a hardening agent which is an epoxy prepolymer containing the dynamic disulfide bond; the water repellent agent comprises 20-35 parts of a curing agent and 1-3 parts of an accelerant. According to the underwater concrete self-repairing material containing the dynamic disulfide bonds, the epoxy prepolymer containing the dynamic disulfide bonds serves as a main network, the epoxy prepolymer is broken under the action of external force, and then new covalent bonds can be formed through spontaneous recombination to repair microcracks.

The invention discloses a fluoride-free waterproof sound-transmitting film and a preparation method thereof, and the fluoride-free waterproof sound-transmitting film comprises the following components in percentage by mass: 30-40% of a fluoride-free polymer; 4.5%-11.5% of a fluoride-free waterproof agent; 0.5%-3.5% of a cross-linking agent and 45%-65% of a solvent; the solvent is a mixed solvent of N 'N-dimethylformamide, N' N-dimethylacetamide, acetone and ethyl acetate, and the mass ratio of the amide solvent in the mixed solvent is 60%-85%; the preparation method of the fluoride-free waterproof sound-transmitting film comprises the following steps: preparing a spinning solution; carrying out electrostatic spinning by utilizing electrostatic spinning equipment to obtain a continuous and uniform nano spinning membrane; the method comprises the following steps: uniformly depositing nanofibers on a nano spinning film base material, and carrying out post-treatment to obtain a finished product of the fluoride-free waterproof sound-transmitting film, the fluorine-free safe and healthy product with good water resistance and air permeability, high rebound resilience and excellent acoustic performance is successfully prepared through selection of raw materials, preparation of a spinning solution, spinning process parameters and fine regulation and control of post-treatment conditions.

The invention provides a production process of a fluoride-free washable waterproof fabric, and relates to the technical field of fabric production. The production process of the fluoride-free washable waterproof fabric comprises the following steps: selecting natural or synthetic fibers with high hydrophobicity as a fabric base cloth, desizing, boiling off and bleaching the fabric base cloth, and preshrinking, sizing, dyeing and softening the fabric base cloth at the same time; the preparation method comprises the following steps: mixing a fluoride-free waterproof agent and an auxiliary agent according to a specific ratio, adding deionized water, and uniformly stirring to form a waterproof agent emulsion; uniformly applying the waterproof agent emulsion to the surface of the fabric; the fabric is placed at the temperature of 100-120 DEG C to be pre-dried for 1-2 minutes; baking the pre-baked fabric at 150-180 DEG C for 2-3 minutes, so that the coating is fixed on the fabric to form a stable waterproof layer; and carrying out softening finishing and antistatic finishing on the baked fabric. The fluorine-free waterproof agent and the auxiliary agent are added, so that the problem of environmental pollution possibly caused by a traditional fluorine-containing waterproof agent is avoided, and the requirements of current environmental protection laws and regulations and sustainable development are met.

The invention relates to the technical field of concrete waterproofing agents, in particular to a high-efficiency concrete anti-crack waterproofing agent and a preparation method thereof, and the high-efficiency concrete anti-crack waterproofing agent is prepared from the following raw materials in parts by weight: a calcium sulphoaluminate expanding agent; light burning of magnesium oxide; re-burning the magnesium oxide; nano-scale silicon dioxide; metakaolin; polypropylene fibers; basalt fibers; styrene-acrylic emulsion; a silane emulsion; silica fume; hydroxypropyl methyl cellulose; and a polycarboxylic acid water reducer compatilizer. According to the high-efficiency concrete anti-crack waterproof agent disclosed by the invention, the nano-silica, the metakaolin and the styrene-acrylic emulsion synergistically block nano-to-macroscopic multi-stage pores, so that double waterproofing of physical filling and chemical film forming is realized; the polypropylene and the basalt fiber are subjected to ultrasonic dispersion and interface combination optimization to form a three-dimensional anti-crack network, the component uniformity and the functional stability are ensured through precise proportioning, graded mixing and directional granulation, meanwhile, the waterproof agent is compatible with industrial production fluctuation, large-scale application reliability is ensured, and the problems that a traditional waterproof agent is single in function and insufficient in durability are solved.

The invention provides a modified single-component polyurea waterproof coating as well as a preparation method and application thereof and a hydraulic concrete protective coating structure, and relates to the technical field of hydraulic concrete protection. The modified single-component polyurea waterproof coating provided by the invention is prepared from the following raw materials by mass: polytetrahydrofuran polyol, polyether triol, fluorine-containing polyether polyol, FEVE type fluorocarbon resin, organic silicon polyether glycol, a water repellent agent, isocyanate, a defoaming agent, a diluent, a dispersing agent, a catalyst, a latent curing agent, a coupling agent, a water removal agent, a pigment filler, a thixotropic agent and a plasticizer. The modified single-component polyurea waterproof coating has excellent comprehensive mechanical properties, anti-icing adhesion performance and ice pulling resistance, and the problem of freezing injury is thoroughly solved; the surface roughness is low, the hydrophobicity is high, and resistance and roughness are reduced; the water resistance is high; the coating is high in adhesive force. The modified single-component polyurea waterproof coating is applied to cold region hydraulic concrete anti-freezing damage protection engineering, and the long-term operation protection performance is good.

The invention relates to the technical field of shaving board production, in particular to a shaving board novel waterproof agent applying device which comprises a mixing box, and the upper end of the mixing box is fixedly connected with a feeding pipe; an application mechanism; the invention further relates to a shaving board novel waterproof agent applying method which comprises the following steps that S1, shaving board fragments are added into the feeding pipe, then the motor is driven clockwise to rotate rapidly, the dispersing disc drives the multiple dispersing grooves to rotate, and under the action of centrifugal force, the shaving board fragments are evenly dispersed in the mixing box. The application mechanism is arranged, chipboard fragments can be thrown out by a plurality of dispersion grooves and uniformly dispersed in a mixing box, a waterproof agent can be sprayed out through a liquid adding pipe, a first annular pipe, a second annular pipe, a first liquid outlet hole and a second liquid outlet hole, and the waterproof agent is uniformly sprayed on the uniformly dispersed chipboard fragments, so that the chipboard fragments are uniformly dispersed. And after each shaving board fragment is stained with the waterproof agent, the shaving board fragments are mixed and stirred.

The ultrafine leather coater and the waterproof and breathable highly wear-resistant ultrafine leather of the present invention belong to the technical field of fabric surface treatment. When the ultrafine leather coater coats the ultrafine leather fabric substrate, the ultrafine leather fabric substrate can be stretched horizontally while being coated. The ultrafine leather fabric substrate passes above the coater. Through the extrusion of the first piston assembly and the second piston assembly and the expansion or retraction of the rolling ring group, the coating liquid can be sprayed onto the ultrafine leather fabric substrate at a certain speed during coating, improving the coating effect. The coating liquid includes alumina, which improves the hardness and wear resistance of the coating liquid, and also includes silicon carbide, which can enhance the wear resistance and scratch resistance of the coating liquid. During the molding of the ultrafine leather fabric substrate, a water repellent is added to the impregnating liquid, making the produced ultrafine fiber synthetic leather have high air permeability, water vapor permeability, and waterproof performance.

The invention discloses a high-strength moisture-proof gypsum board and a preparation method thereof, and relates to the technical field of gypsum board preparation. The high-strength moisture-proof gypsum board is prepared by dipping the surface paper in the composite dipping liquid and then pouring the surface paper and the gypsum core with the waterproof agent, the composite dipping liquid comprises the methoxy vinyl ether copolymer and the epoxy polyoxymethylene dimethyl ether, and the methoxy vinyl ether copolymer is 2, 3, 5-trimethyl-1, 3-pentanediol monoisobutyrate. According to the present invention, epoxy polyoxymethylene dimethyl ether is prepared by reacting 2, 4-dimethoxymethoxyphenylacetic acid with 2-hydroxyethyl vinyl ether, and the epoxy polyoxymethylene dimethyl ether is prepared by terminating polyoxymethylene dimethyl ether with allyl and then reacting with phthalimide hexperoxy acid, such that the waterproofness and the mechanical property of the gypsum board are improved; the waterproof agent is prepared by reacting hydrogen-containing silicone oil and fluorine-containing hyperbranched amide polyurea urethane, so that the moisture resistance and bonding strength of the gypsum board surface paper are enhanced, and additional mechanical support is provided for the gypsum board.

The invention discloses a preparation method of modified silica sol and an inorganic porcelainized coating adopting the modified silica sol. The inorganic porcelainized coating is prepared from modified silica sol, acrylic emulsion, cellulose, solid filler, bentonite, auxiliaries, AMP-95, an organic silicon water repellent agent and ionized water, a preparation method of the modified silica sol comprises the steps that siloxane is grafted to the silica sol through a sol-gel method, then a nanometer aluminum oxide aqueous solution is added, and the modified silica sol is prepared through a sol-gel method. Performing ultrasonic treatment after stirring to obtain the modified silica sol. Silica sol is modified through siloxane and nanometer aluminum oxide, the film forming performance of the silica sol is effectively improved, the silica sol has the extremely high hardness and hydrophobic effect, and then the inorganic coating prepared by compounding the acrylic emulsion and various filler and auxiliaries is large in strength, high in hardness, excellent in scrubbing resistance and good in stain resistance.

The invention relates to the field of concrete additives, in particular to a heat-resistant anti-freezing water-based permeable inorganic waterproof agent as well as a preparation method and application thereof. The invention discloses a heat-resistant and anti-freezing water-based permeable inorganic waterproof agent which is prepared from the following raw materials in parts by mass: 55-70 parts of active potassium silicate, 10-12 parts of Portland cement, 10-20 parts of modified silicon dioxide, 5-10 parts of a filling agent, 2-4 parts of a coupling agent, 0.5-1.5 parts of a catalyst, 3-8 parts of a dispersing agent, 1.5-3 parts of a stabilizer and 30-50 parts of deionized water. The inorganic waterproof agent prepared by the invention not only has excellent waterproof performance, but also can effectively improve the corrosion resistance, aging resistance, stability and the like of concrete at the same time, can meet the construction requirements of existing deep operation, has very excellent comprehensive performance, and has very excellent application prospects.

The invention provides a capillary crystalline waterproof agent, a preparation method and application, and the capillary crystalline waterproof agent comprises the following raw materials in parts by weight: 80-100 parts of a non-cement-based cementing material, 15-25 parts of an alkali activator, 1.5-2.5 parts of a thickener, 12.5-22.5 parts of a flexibilizer, 0.1-0.3 part of a dispersant and 5-10 parts of a water reducer, the flexibilizer is formed by mixing carboxyl-terminated liquid rubber modified epoxy resin and inorganic ceramic particles according to the mass ratio of 7: (3-5), and the dispersing agent is alkylphenol polyoxyethylene ether. Under the action of the dispersing agent, the toughening agent can be uniformly dispersed in the concrete, so that the overall toughness of the concrete is improved. The improvement of the overall toughness not only can bear deformation or shrinkage cracking of the concrete caused by evaporation of moisture, temperature difference and external stress, but also can better resist cracking from the source, reduce cracks and pores, prevent moisture from permeating and improve the impermeability of the concrete; and the bending resistance of the concrete after complete water permeability and self-healing can also be improved.

The invention relates to the technical field of cool fabric preparation, in particular to a waterproof and sun-proof twill tatting superfine cool fabric and a preparation process, the waterproof and sun-proof twill tatting superfine cool fabric is composed of a warp and weft twill tatting blank, a waterproof coating covering the blank, and a cool finishing agent sprayed and shaped on the surface of the waterproof coating; through coating of the waterproof agent and the cross-linking agent and special drying treatment, the fabric has excellent waterproof performance, and water permeation is effectively blocked; in the preparation process of the fabric, sun protection is provided through padding treatment, and the passing rate of ultraviolet rays is reduced; the twill tatting structure is combined with specific drying, baking and calendaring treatment, so that the structural stability and wear resistance of the fabric are enhanced, and the air permeability of the fabric is ensured while the waterproof effect of the fabric is not influenced; due to the use of the cool-feeling finishing agent and the fine shaping treatment, the soft and comfortable hand feeling of the fabric is ensured, and the fabric can have a good temperature adjusting effect.

The invention discloses a preparation method of a road base mixture curing agent based on construction waste recycled aggregate, and relates to the technical field of modified composite materials. According to the method, the construction waste recycled aggregate is collected and treated, and crushing and grinding are performed after impurities are removed, so that a proper particle size is obtained. Then, mixing the modified epoxy resin, a silane coupling agent, nano silicate, an organic silicon water repellent, a surfactant, a defoaming agent and water according to a preset proportion to form a silicate solution; in the preparation process of the modified epoxy resin, an epoxy resin emulsion reacts with other additives in a nitrogen atmosphere, so that the generated curing agent is ensured to have excellent mechanical properties and water resistance. The final curing agent is formed by adding boric acid into a silicate solution, heating and reacting, and drying. The curing agent not only improves the strength and stability of the road base mixture, but also effectively utilizes the construction waste, realizes resource recycling, and meets the requirements of sustainable development.

A treatment agent and a fiber fabric or coating treated by same. The treatment agent comprises an organic silicon polymer, an emulsifier, and an aqueous medium, wherein the organic silicon polymer comprises a structural unit generated by a monomer I, and the monomer I comprises a silicon monomer I-A and an optional silicon monomer I-B. The treatment agent can simultaneously endow a fiber fabric with good oil and water repellent functions and endow a coating with a good anti-fouling or anti-graffiti capability.

The invention discloses a fabric with a breathable film, which is prepared by the following steps: S1, selecting a chinlon spandex or polyester spandex four-way stretch fabric to make a surface fabric layer, using a nanofiber material based on polyurethane to prepare a breathable film layer, using a special fiber fabric with moisture absorption, sweat releasing and light heat storage functions to prepare a base fabric layer, and using the breathable film layer to prepare a breathable film layer; selecting an environment-friendly water-repellent additive as a waterproof layer of the shell fabric, and selecting a hot melt adhesive for bonding different layers; according to the invention, the nylon spandex or polyester spandex four-side elastic shell fabric layer with a telescopic characteristic is selected, then an environment-friendly water-repellent auxiliary agent is applied to form a waterproof layer, the breathable nanofiber membrane layer is prepared by an electrospinning technology, the base fabric layer with moisture absorption and sweat releasing functions is combined, and specific material selection and a fine process flow are adopted, so that the moisture absorption and sweat releasing performance of the fabric is improved. The fabric creatively integrates the characteristics of wind resistance, air permeability, water resistance and good elasticity keeping, effectively solves the contradiction between the heat retention property and the air permeability of the traditional fabric, and improves the wearing comfort and practicability at the same time.

The invention discloses a preparation method of fluorine-free hydrolysis-resistant knurling polyurethane synthetic leather, which comprises the following steps: preparing wet-process polyurethane resin for leather by adopting PTMG (polytetramethylene glycol) with proper polymerization degree as a chain extender through a pre-polymerization process, preparing soft hydrolysis-resistant wet-process polyurethane resin by adopting bio-based poly-farnesyl alcohol as a main raw material through an insufficient method, and preparing the fluorine-free hydrolysis-resistant knurling polyurethane synthetic leather by adopting a high-temperature-resistant wet-process polyurethane resin. The two components are matched to optimize and balance the embossing performance and the thickness retention rate, the finally obtained soft hydrolysis-resistant polyurethane synthetic leather product is soft and glutinous in hand feeling and good in hydrolysis resistance, the thickness reaches the standard, and embossing is clear and does not rebound; a fluorine-containing water repellent does not need to be added, and the method is simple in process, low in cost and energy consumption and excellent in product performance.

The invention relates to the field of civil engineering materials, and particularly discloses C35 basalt fiber concrete for bridge abutments and a preparation method thereof.The C35 basalt fiber concrete for bridge abutments is prepared from 350-370 parts of cement, 170-185 parts of water, 570-620 parts of sand, 1140-1250 parts of gravel, 55-70 parts of fly ash, 40-55 parts of silica fume, 2-3.8 parts of a water reducing agent and 8-12 parts of a basalt fiber composite material. 6-8 parts of a waterproof agent and 3-6 parts of anti-seismic particles; the basalt fiber composite material is prepared from basalt fibers, mullite fibers and a polycaprolactone solution; the preparation method comprises the following steps: uniformly mixing the cement, the sand, the gravel, the fly ash, the silica fume and part of the water, adding the basalt fiber composite material, the anti-seismic particles and the waterproof agent, uniformly mixing, adding the water reducing agent and the rest of the water, uniformly mixing, pouring and curing to obtain the concrete. The material has the advantages of good shock resistance and high mechanical strength.

The invention discloses an efficient flame-retardant waterproof and fireproof coating for a special humid environment and a preparation method, and relates to the technical field of waterproof and fireproof coatings, the waterproof and fireproof coating is prepared from a composite base material, a composite flame retardant, a nano waterproof agent, a moisture-proof auxiliary agent, a functional filler and a mixed auxiliary agent; the adhesive force and flexibility of the coating are synergistically improved through a molecular chain interpenetrating network, dual protection of a super-hydrophobic surface and a compact barrier layer is achieved in combination with a core-shell structure nano waterproof agent, a molecular-level moisture-proof barrier is constructed by adopting dual-intercalation modified bentonite, water vapor permeation can be effectively inhibited, and based on a ternary synergistic flame-retardant system, the flame-retardant performance of the coating is improved. An efficient expanded carbon layer is formed through coating modification and an eutectic structure, the fire endurance of the coating can be remarkably enhanced, in addition, the functional filler strengthens the mechanical property and the flame-retardant synergistic effect through multi-stage structural design and surface modification, the cross-linked network density is optimized in cooperation with gradient polymerization and irradiation curing processes, and the fire endurance of the coating can be remarkably improved. And finally, the bottleneck of performance degradation of the traditional coating in a humid environment is broken through.

The invention discloses a corrugated carton with waterproof and antibacterial properties, and belongs to the technical field of logistics packaging materials. The corrugated carton is formed by bonding surface paper, inner paper and corrugated paper. The surface paper, the inner paper and the corrugated paper are coated with a layer of composite waterproof antibacterial emulsion before being bonded, and a layer of waterproof antibacterial film is obtained; the composite waterproof antibacterial emulsion is prepared from the following components in parts by weight: 40 to 50 parts of waterborne polyurethane, 30 to 35 parts of acrylic resin emulsion, 20 to 25 parts of modified palm wax emulsion, 8 to 10 parts of composite waterproof antibacterial material dispersion liquid, 4 to 6 parts of organic silicon waterproof agent, 3 to 5 parts of nano zinc oxide, 2 to 4 parts of propylene glycol methyl ether acetate, 0.5 to 2 parts of hydroxyethyl cellulose and 0.1 to 0.5 part of defoaming agent. The corrugated carton prepared by the invention has good adhesion, waterproofness and antibacterial property.

The invention provides anti-erosion hydraulic concrete and a preparation method thereof, and belongs to the technical field of concrete. The concrete comprises the following components: composite cement, high-activity nano-modified metakaolin, blast furnace slag powder, low-calcium fly ash, coarse aggregate, natural river sand fine aggregate, granite machine-made sand fine aggregate, an erosion inhibitor, a functional additive, an early-strength polycarboxylic high-performance water reducer, a composite air entraining agent and the like. The composite cement comprises sulphoaluminate cement, Portland cement and polymer waterproof mortar. The high-activity nano modified metakaolin is obtained by modifying metakaolin with an organic silicon-ZnO composite emulsion and then drying. The erosion inhibitor comprises organic carboxylate, a hydrophobic-crystallization complexing agent and a pH buffer type corrosion inhibitor. The functional auxiliary agent comprises an itaconic acid and acrylic acid copolymer, a JRY-F concrete waterproof agent and polyethylene glycol-400 dilaurate. The composite air entraining agent comprises liquid sodium abietate and sodium alpha-olefin sulfonate. Through component synergism, modification and grading, an anti-erosion barrier is constructed.