159results about How to "Improve bond firmness" patented technology

The invention relates to a metal grid conducting layer and a touch panel equipped with the conducting layer. Surface of the conducting layer comprises a transparent electrode area and an electrode lead area, wherein the transparent electrode area is equipped with random metal grids in irregular shapes, and the electrode lead area is equipped with metal grids in regular shapes. Grid lines of the transparent electrode area are evenly distributed in each angular direction. Said grids are filled into grooves. In the transparent electrode area of the invention, grids are adopted so that conductive filling materials are more evenly filled in the grooves and are better connected with external conductive materials. In addition, the transparent electrode composed of irregular grids would no longer generate moire fringes.

The invention provides an aluminium foil sealing film and a preparation method thereof and belongs to the technical field of plastic packaging. The aluminium foil sealing film comprises a protective layer, a separation layer and a heat-seal layer, wherein the protective layer is a gloss oil layer or a PET (Polyethylene Terephthalate) film layer; the separation layer is an aluminium foil layer; and the heat-seal layer comprises the materials as follows: 15 to 25 wt% of polybutene, 25 to 35 wt% of ethylene-propylene copolymer and 40 to 60 wt% of HDPE (high-density polyethylene). As a sealing film for the bottle mouth of a polypropylene plastic bottle, the aluminium foil sealing film provided by the invention has the excellent properties of cooking resistance and easiness for uncovering, and when the cooking-resistant temperature is 121 DEG C, the sealing film is unchanged in color and is not stratified. The opening force is 5 to 25 N after the sealing film and the polypropylene bottle are heat-sealed at 200 DEG C, and the heat-seal strength of a heat-seal strip with the width of 15 mm is 5 to 25 N, which shows that the aluminium foil sealing film has the excellent properties of cooking resistance and easiness for uncovering at the same time.

The invention provides a liquid package composite membrane and a preparation method thereof and belongs to the technical field of plastic package. The composite membrane comprises a surface layer, an obstruction layer, a reinforced layer and a heat seal layer, wherein the surface layer is a polyethylene terephthalate film layer; the obstruction layer is an aluminum foil layer; the reinforced layer is a polyethylene terephthalate film layer; and the heat seal layer consists of the following materials: 40-60wt% of eight-carbon linear low-density polyethylene, 35-50wt% of polyvinyl acetate and 5-10wt% of low-density polyethylene. The liquid package composite membrane provided by the invention has excellent break-resistant and pressure-resistant performances; break-resistant performance test shows that the liquid package composite membrane does not break while falling to a cement floor from a height of 10 meters once; and pressure-resistant performance test shows that the liquid package composite membrane has no leakage within 24 hours when the static pressure is 20MPa.

The invention discloses a solvent-free polyurethane resin and an application thereof to waterborne / non-solvent polyurethane synthetic leather with high peeling strength. The solvent-free polyurethaneresin is composed of a component A and a component B and comprises 40-60 parts of polytetrahydrofuran glycol, 10-20 parts of 1,4-butanediol, 2-5 parts of hydroxyethyl acrylate, 5-10 parts of double-bond-containing polymer glycol, 0.05 part of delayed catalyst, 0.5-1 part of water and 2-5 parts of photoinitiator according to parts by weight, the component B is an oligomer glycol modified diphenylmethane diisocyanate prepolymer, and the weight ratio of the component A to the component B is 100: (60-70). The double-bond-containing polymer glycol is one or a mixture of several of hydroyl-terminated polybutadiene, hydroxyl-terminated hydrogenated polybutadiene, hydroxyl-terminated epoxidized polybutadiene resin and hydroxyl-terminated polyisoprene. The solvent-free polyurethane resin contains double bonds and is used as foamed layer slurry of waterborne / solvent-free synthetic leather so as to be used for preparing the synthetic leather with high peeling strength after being subjected to ultraviolet curing.

The invention provides repair mortar for a concrete slab and a preparation method. The mortar is prepared from the following components: sulphate aluminium cement, quartz sand, heavy calcium powder, paste attapulgite, kaolin, polyacrylamide, polyvinyl alcohol, graphene, lignosulfonate, glass fiber, a defoaming agent and an early strength agent. The preparation method comprises the steps of firstly performing modification reaction on the polyacrylamide, the polyvinyl alcohol and the graphene, and then uniformly mixing a reaction product with the rest components in batches, thus obtaining the mortar. When the repair mortar provided by the invention is applied to the field of buildings, better compatibility to building concrete is realized, and mechanical properties of higher bonding strength and the like are also realized; furthermore, the repair mortar has the characteristics of construction easiness and good effect, and has better application value.

The invention relates to the field of ceramic composite sheet material production processes, and discloses a ceramic composite sheet material and a production process thereof. The ceramic composite sheet material includes an insulation layer and a decorative layer, the insulation layer and the decorative layer both include base materials, the insulation layer further includes a foaming agent, thedecorative layer further includes zirconium silicate, and the base materials are prepared from the components in parts by mass: 20-30 parts of kaoline, 10-15 parts of kieselguhr, 5-8 parts of talcum powder, 3-5 parts of clay, 5-8 parts of a lead-zinc tailing, 8-12 parts of a fluxing agent, 2-4 parts of the foaming agent and 1-3 parts of the zirconium silicate. The service life of the composite sheet material can be prolonged.

The invention discloses a prefabricated pre-stressed beam member, a fabricated combined frame structure and an installation method of the fabricated combined frame structure. The fabricated combined frame structure comprises prefabricated column members with hollow steel pipes inside, prefabricated pre-stressed beam members, cast-in-place concrete inside the prefabricated column hollow steel pipes, a laminated floor slab prefabricated base plate and laminated surface layer concrete. The middle sections of the hollow steel pipes of the prefabricated column members are covered with concrete, anda beam-column joint zone provided with short H-shaped steel beams is arranged at both ends of each middle section. The prefabricated pre-stressed beam member comprises a concrete laminated pre-stressed beam and interposed H-shaped steel beams at both ends of the pre-stressed beam. The short H-shaped steel beams in the beam-column joint zone and the interposed H-shaped steel beams of the prefabricated pre-stressed beam member are combined by bolt welding or connected by bolting. Joints of the hollow steel pipes of the upper and lower sections of the prefabricated column members are connected by welding. The fabricated combined frame structure integrates the advantages of a steel structure and a prefabricated concrete structure, and has high installation efficiency and good safety, and manpower and material resources are greatly saved.

The invention provides an inter-layer bonding sheet for a multi-layer board and a preparation method and application of the inter-layer bonding sheet. The inter-layer bonding sheet for the multi-layerboard comprises a modified PTFE substrate and a dielectric resin layer bonded to the surface of the modified PTFE substrate. The modified PTFE substrate is a modified PTFE substrate of which the surface is subjected to plasmon and monomer graft polymerization treatment. A long-time-efficiency activation layer is formed on the PTFE substrate through the synergistic cooperation of plasma treatmentand monomer graft polymerization treatment, the activation property of the activation layer can be kept for 30 days, and the requirements of a manufacturing process and the requirements on product performance are fully met. According to the inter-layer bonding sheet for the multi-layer board provided by the invention, through the synergistic cooperation of the modified PTFE substrate and the dielectric resin layer, the dielectric property, the bonding strength, the mechanical property and the resistance are good, the bonding stability of the multi-layer board containing the inter-layer bondingsheet for the multi-layer board at high temperature is high, and the requirements of the multi-layer board for high frequency of signals, stability and reliability can be fully met.

The invention discloses a quilt capable of improving softness as well as a production process thereof. The quilt capable of improving softness comprises a quilt cover and a quilt core; the quilt corecomprises a filler and a non-woven wrapping layer wrapping the filler; and the filler comprises the following raw materials in parts by weight: 60 to 80 parts of cashmere, 10 to 15 parts of duck down,5 to 10 parts of bamboo fiber, 10 to 15 parts of cotton fiber, 5 to 10 parts of wood fiber, 20 to 30 parts of superfine polyester short fiber, 30 to 50 parts of low-melting-point elastic fiber and 1to 5 parts of water. The preparation method comprises the following steps: S1, preparing the filler and the core material: I, preparing the filler; and II, preparing the core material; S2, preparing net-like flocculus; S3, stacking the net-like flocculus; S4, baking and forming; S5, sewing and fixing; and S6, performing soft shaping. The quilt capable of improving softness has the advantages of good softness, rebound resilience, bulkiness and heat-insulating property.

The invention aims at provides a novel tencel fiber and cotton fiber composite material, and a preparation method thereof. The novel tencel fiber and cotton fiber composite material comprises a tencel fiber fabric layer, a cotton fabric layer, and an adhesive layer arranged between the tencel fiber fabric layer and the cotton fabric layer, and is characterized in that a fluff layer is arranged on the surface of the tencel fiber fabric layer, the adhesive layer is formed by one or more of nylon melt glue, polyether sulfone resin melt glue, a hot melt adhesive, polyethylene melt glue or a polyurethane melt adhesive. By virtue of compounding of a tencel fiber fabric and a cotton fabric, the defects caused when the tencel fiber is independently used for making fabrics are overcome, so that the performances of the composite material are improved from the whole.

The invention relates to simulated leather texture polyurethane leather for an automobile. The simulated leather texture polyurethane leather is characterized by comprising a base cloth layer, a hot melt adhesive layer and a skin layer which are successively laminated; and the hot melt adhesive layer comprises a TPU hot melt adhesive layer or an EVA hot melt adhesive layer. According to the simulated leather texture polyurethane leather for the automobile, since a new TPU hot melt adhesive film is adopted, the bonding strength of the simulated leather texture polyurethane leather is greatly improved, and the maximum bonding strength can be 8.0 kg / 25 mm; by using a specific PU film, the specific TPU film and specific base cloth, comprehensive physical performance of the prepared polyurethane leather is excellent, the hand feeling of molded products is greasy and smooth, the leather texture is clear, the hand feeling of the leather is not less than that of genuine leather, and the simulated leather texture polyurethane leather can completely replace PVC artificial leather and the genuine leather; and meanwhile, antibacterial agent compositions are added, and the simulated leather texture polyurethane leather has certain antibacterial effect.

The invention discloses a heat-insulating, anti-freezing and waterproof coiled material and a preparation method thereof, belonging to the technical field of waterproof coiled materials. The heat-insulating, anti-freezing and waterproof coiled material includes a base material layer of glass fiber felt, and also includes a heat-insulating layer arranged on the upper surface of the glass fiber felt, and the glass fiber felt and the heat-insulating layer are connected by an adhesive layer, The upper surface of the heat insulation layer is provided with a first waterproof layer, the upper surface of the first waterproof layer is provided with a heat insulation coating, and the lower surface of the glass fiber felt layer is also provided with a second waterproof layer, and the second waterproof layer A protective layer is provided on the lower surface of the layer. The heat-insulating, anti-freezing and waterproofing membrane material of the present invention not only has a good waterproof effect, but also has an excellent heat-insulating and anti-freezing effect, can greatly reduce the temperature exchange inside and outside the building, and reduce energy consumption. In addition, the preparation method is simple and easy, It has good application value.

The invention discloses a sound-absorption and waterproof attapulgite board and a preparation method, which belong to the technical field of attapulgite. The sound-absorption and waterproof attapulgite board comprises an abrasion-resistance and waterproof layer, a rubber buffer layer, a sound absorption layer, a board body and a waterproof protection layer in sequence from top to bottom, wherein the board body is prepared by taking attapulgite as a basic material; the sound absorption layer comprises an elastic layer and sound absorption fillers; a plurality of small holes are formed in the elastic layer and are filled with the sound absorption fillers; the sound absorption fillers are prepared by taking attapulgite as a basic material; the sound absorption layer is connected with the board body by adhesive; the sound absorption layer is connected with the rubber buffer layer by adhesive. The sound-absorption and waterproof attapulgite board has comparatively good sound-absorption, sound-insulation and waterproof effects and has the comparatively good characteristics of stable performance, high strength and good weather resistance; in addition, the preparation method has the characteristics of being simple and being convenient in operation and low in manufacturing cost, so that the current market requirement is met, and the application value is comparatively good.

The invention discloses waterproof putty for an internal wall. The waterproof putty is prepared from the following raw materials in parts by weight: 11 to 15 parts of ash calcium powder, 5 to 10 parts of calcium carbonate, 4 to 8 parts of aluminum triphosphate, 3 to 7 parts of polyurethane, 1.3 to 3.5 parts of lignin fiber, 6 to 9 parts of aluminum sulfate, 3 to 5 parts of sodium nitrite and 5 to 7 parts of corn starch. The waterproof putty disclosed by the invention has the excellent effects that the used raw materials of the waterproof putty are properly matched, not only is the cost of the waterproof putty reduced to a certain degree and is the cracking resistance of the waterproof putty improved, but also the water absorption amount of the waterproof putty is reduced, and the water resistance of the waterproof putty is increased.

The invention relates to the technical field of thermal transfer printing lettering film, and in particular, relates to a high-elasticity silicone rubber lettering film and a preparation method and anapplication method thereof. The high-elasticity silicone rubber lettering film comprises a load-bearing substrate, a release layer, a surface layer silicone rubber ink layer, an anti-photopermeable silicone rubber ink layer, an adhesive interfacial agent layer and a TPU hot melt adhesive film which are connected from bottom to top successively; the adhesive interfacial agent layer is prepared from an adhesive interfacial agent, and the adhesive interfacial agent is an adhesive interfacial agent containing dual-resin components. The silicone rubber lettering film has the advantages of both thesilicone rubber material and the TPU material, has good elasticity, tearing strength, weatherability, yellowing resistance, water washing resistance and other comprehensive properties, has layers noteasy to separate, is not easy to discolor or fade by sunlight exposure, and has the water-washing fading rate not less than 0.5%, is not easy to dye when being mixed and washed with materials with other colors, and is high in stability, easy to bond with a variety of materials, high in bonding strength, not easy to peel off, good in stability, delicate in hand feeling, good in aesthetic degree, and long in service life.

The invention discloses an external wall thermal insulation coating as well as a preparation method and application thereof, and belongs to the field of external wall coatings. The external wall thermal insulation coating comprises the following components by weight: 15-30 parts of water; 0.2-0.5 parts of hydroxyethyl cellulose; 1-1.5 parts of ethylene glycol; 30-40 parts of inorganic resin; 8-15parts of an acrylic emulsion; 0.3-0.5 parts of lauryl sodium sulfate; 3-6 parts of an inorganic water repellent; 6-15 parts of pigment and filler; 23-38 parts of a thermal insulation filler; and 0.1-0.2 parts of a multifunctional auxiliary agent. The coating disclosed by the invention can be directly applied to a cement mortar wall reinforced by seal primer, and has the advantages of good thermalinsulation property, high fireproof grade, good hydrophobicity and good comprehensive performance.

The invention discloses a wear-resisting antiskid plastic track and a preparation method. The wear-resisting antiskid plastic track sequentially comprises an antiskid wear-resisting layer, a toughness reinforcing layer, a substrate layer and a cement powder stable layer from top to bottom, wherein a figure structure is arranged on the upper surface of the antiskid wear-resisting layer, and the antiskid wear-resisting layer and the toughness reinforcing layer are connected through an adhesive. The preparation method comprises the steps: firstly preparing the antiskid wear-resisting layer, the toughness reinforcing layer and the adhesive respectively; then laying the cement powder stable layer on a soil base layer, laying a self-adhesion SBS modified asphalt layer on the cement powder stable layer, then laying the toughness reinforcing layer on the surface of the asphalt layer, then coating the adhesive on the upper surface of the toughness reinforcing layer and adhering the antiskid wear-resisting layer to obtain the wear-resisting antiskid plastic track. The plastic track not only has better antiskid and wear-resisting performance, but also has better adhering firmness among all the layers; furthermore, the plastic track cannot release toxic gas, is safe and free of pollution and has better practical value.

The invention discloses high-elastic glue for an inflatable solid tire and a preparation method thereof. The high-elastic glue is prepared from natural rubber, chloroprene rubber, ethylene-vinyl acetate copolymer, zinc oxide, stearic acid, sulphur, accelerant, gum easy T-78, tackifier, anti-aging agent, and filling agent. The preparation method includes steps of firstly, smelting the natural rubber, the chloroprene rubber, ethylene-vinyl acetate copolymer, and zinc oxide, and acquiring first section glue; then adding stearic acid, sulphur, and accelerant and smelting for 1-2 min; adding gum easy T-78, tackifier, anti-aging agent, and filling agent, and continuing to smelt for 3-4 min; discharging glue, and acquiring the high-elastic glue. The high-elastic glue is applied to a middle layer of the inflatable solid tire, thus the tire has good damping and buffering performances, and also has a certain anti-fatigue performance; thus the service life and the use safety of the solid tire are greatly prolonged; the high-elastic glue has good application value.

The invention discloses a multi-bag type joint-expanded anchor rod and a foundation pit supporting construction method. The multi-bag type joint-expanded anchor rod is applied to foundation pit engineering and comprises a cushion block and a steel pipe, wherein the cushion block is fixed to a slope of a foundation pit, and the exposed end of the steel pipe serving as an anchor rod body is fixed to the cushion block. A pressure bearing plate connected with the outer wall of the steel pipe is fixed to the end face of the cushion block. A one-way valve is arranged at the exposed end of the steel pipe located in the foundation pit. A plurality of rubber membranes are fixed to the part, stretching into rock and soil, of the steel pipe at intervals. Through holes used for filling the interiors of the rubber membranes with cement slurry through pressure are formed in the steel pipe wall covered with the rubber membranes. According to the multi-bag type joint-expanded anchor rod and the foundation pit supporting construction method, the rubber membranes are bulged by injecting the slurry into the steel pipe through pressure, so that the contact area of the anchor rod and a soil body is increased, and mutual bonding resultant force is increased; in addition, through pressure grouting, a soil layer in the contact range of the anchor rod is compacted, bonding strength is improved, meanwhile, the soil body on the front parts of the bulged portions of the rubber membranes is pressed to form pulling resistance, the supporting effect is improved, the length of the steel pipe can be reduced sufficiently, and cost is reduced.

The invention discloses a waterproof paint for a building material, belonging to the technical field of building materials. The waterproof paint comprises the following raw materials by weight: 50 to 60 parts of epoxy resin emulsion, 3 to 10 parts of polyacrylate, 1 to 5 parts of a dispersing agent, 40 to 45 parts of cement, 8 to 12 parts of talcum powder, 0.2 to 5 parts of a dehydrating agent, 0.5 to 2 parts of a silane coupling agent, 0.2 to 0.4 part of an antiseptic, 1 to 3 parts of a polycarboxylate water reducer, 5 to 10 parts of pigment, 0 to 2 parts of a pH value regulating agent, 3 to 6 parts of a plasticizer, 0 to 2 parts of an antifoaming agent and 0.8 to 1 part of a liquid aromatic. The invention also discloses a preparation method for the waterproof paint for the building material. The waterproof paint provided by the invention has good corrosion resistance, durability, impermeability, compactness and high adhesion stress; and the preparation method is simple and reliable.

The invention provides a semi-pull-lug easy-uncovering aluminum foil sealing film and a preparing method thereof, and belongs to the technical field of package. The sealing film is sequentially provided with a protection layer and an adhering layer from top to bottom; the protection film is composed of an adhering part and a free part, the adhering part and the free part are formed in an integrated mode, and the adhering part and the free part are respectively and sequentially provided with a first BOPET film layer and a PE film layer from top to bottom; the adhering layer is sequentially provided with a second BOPET film layer, an aluminum foil layer and a heat-seal layer from top to bottom; the PE film layer in the adhering part and the second BOPET film layer in the adhering layer are adhered into a whole, and the free part is of a pull-lug structure; EVA and EMAA are evenly mixed and then blow molding is conducted at the temperature of 150-170 DEG C to prepare the heat seal layer, wherein the weight ratio of the EVA is 80-90%, the melt index of the EVA is 3-9g / min, the weight ratio of the EMAA is 10-20%, and the melt index of the EMAA is 2-5g / min. The semi-pull-lug easy-uncovering aluminum foil sealing film has excellent easy-uncovering performance and seal intensity performance.

The invention discloses a method for improving the bonding soundness of glass beads on a glass bead screen. Particularly, the upper surface of a screen blank is uniformly coated with a white emulsion layer, and a layer of glass beads is uniformly sifted on the white emulsion layer after the white emulsion layer evaporates naturally and is dried for 50% to 80%; after the glass beads are sifted, the glass beads are dried for 35 seconds to 120 seconds at a temperature ranging from 90 DEG C to 115 DEG C, and the glass bead screen bonded with the glass beads is obtained; and a screen bottom, a screen base and a screen surface are paved on the screen blank from bottom to top successively. According to the method for improving the bonding soundness of glass beads on the glass bead screen, the thickness of the white emulsion layer and the size and the sifting density of the glass beads are strictly controlled, and white emulsion modified by polyvinyl acetal is selected to overcome the defect that the bonding strength of traditional white emulsion is decreased because of moisture; and in addition, a glass bead anti-falling layer is added on the surface of the glass bead screen to reinforce the glass beads. The method can effectively improve the bonding soundness of glass beads on the glass bead screen, and accordingly, the glass bead screen is guaranteed to have a good stable projection effect.

The invention discloses a liquid crystal screen protective film and a preparation method, belonging to the technical field of screen protective films. The liquid crystal screen protective film comprises a base material layer, the upper surface of the base material layer is provided with a scratch-resistant layer, the upper surface of the scratch-resistant layer is provided with a dust removal layer, the lower surface of the base material layer is provided with a radiation-proof layer, and the radiation-proof layer is A release film is provided on the lower surface, and the substrate layer, the scratch-resistant layer, the radiation protection layer, and the radiation protection layer and the release film are connected through an adhesive layer. The preparation method comprises: coating an adhesive layer on the upper surface of the substrate layer, bonding a scratch-resistant layer on the upper surface of the adhesive; coating a dust release layer on the upper surface of the scratch-resistant layer; coating the lower surface of the substrate layer Cover the adhesive layer, then bond the radiation protection layer, then coat the adhesive layer on the lower surface of the radiation protection layer, and bond the release film. The protective film not only has good scratch resistance, but also has good radiation protection, electrostatic shielding and waterproof effects, provides multi-directional protection for liquid crystal screens, and has good application value.

The invention discloses a shock-proof waterproof coiled material and a preparation method, which belongs to the technical field of the waterproof coiled material. The shock-proof waterproof coiled material comprises a base material layer, wherein the upper surface of the base material layer is provided with an elastic buffer layer, the upper surface of the elastic buffer layer is provided with a flexible waterproof layer, and the elastic buffer layer is respectively connected with the base material layer and the flexible waterproof layer by virtue of an adhesive layer; the lower surface of the base material layer is provided with a self-adhesion waterproof layer, and the lower surface of the self-adhesion waterproof layer is also provided with a protection layer. The preparation method comprises the following steps: smearing the adhesion layer on the upper surface of the base material layer, and adhering the elastic buffer layer onto the upper surface of the adhesive; adhering the flexible waterproof layer onto the upper surface of the elastic buffer layer; and smearing the self-adhesion waterproof layer at the lower surface of the base material layer, and then adhering a protective layer. The waterproof coiled material not only has a good waterproof effect, but also has an excellent shock-proof effect, and can protect a building against collision damage; and moreover, the preparation method is simple and easy and has good application value.

The invention discloses a waterproof anti-flaming photovoltaic coiled material. The photovoltaic coiled material sequentially comprises a transparent waterproof layer, a flexible photovoltaic module layer and a waterproof coiled material layer from top to bottom, and all layers are connected through grapheme modified epoxy adhesives. The transparent waterproof layer is a modified PE permeable film; the flexible photovoltaic module layer comprises a flexible thin film photovoltaic module, an ethylene-tetrafluoroethylene copolymer film layer and a graphene-silicone-modified polyacrylamide coating layer; and the waterproof coiled material layer sequentially comprises a reflecting film, a waterproof anti-flaming layer, a glass fiber mat layer and a self-adhered SBS modified asphalt layer fromtop to bottom, and the surface of the modified asphalt layer is provided with a PE protection layer. The waterproof anti-flaming photovoltaic coiled material is good in waterproof and anti-flaming performance, can fully realize the role of photovoltaic power generation, the production cost of the coiled material is low, the use is convenient, and the coiled material is suitable for popularizationand application.

The invention discloses a composite material for repairing a non-excavated pipeline and a preparation method thereof and relates to preparation of the composite material. The composite material is characterized by including the following steps that a polyester needle-punched non-woven fabric and TPU are used as raw materials, hot-pressing molding processing is firstly performed, and then resin injection is performed by adopting a VARI molding process to prepare the composite material for repairing the non-excavated pipeline. The hot-pressing molding and the VARI molding process are combined to develop the composite material for repairing the non-excavated pipeline. The preparation method is short in technological process and lower in cost, the mechanical properties of the developed composite material exceed that of similar composite materials, the composite material can be applied to different diameters of drainage pipelines, water supply pipelines, industrial pipelines and oil, gas and water delivery pipelines and can also be used for repair of different specifications of pipelines and main pipeline joints, repair and renovation of artificial wells and other fields.

The invention provides a high-temperature refractory brick and a production method thereof. The refractory brick comprises the following components: magnesite, quartz powder, high bauxitic clay clinker, high viscosity attapulgite clay, calcium silicate cement, alumina, diatomite, glass waste residue, and polyisocyanurate foam plastic. The preparation method comprises the following steps: crushingthe components, mixing the components according to a sequence, and performing steps of moulding, drying and sintering to obtain the high-temperature refractory brick. The high-temperature refractory brick has good heat stability, mechanical strength and wear resistance, good shock resistance, and good application prospect, and greatly prolongs the usage life of the refractory brick.

The invention provides a preparation method of high-strength foam glass. The method comprises the steps that glass waste, slag, modified attapulgite clay, polyvinyl alcohol, mica powder, quartzite, mirabilite, glass fiber, carbon black, titanium dioxide, sodium fluosilicate, microporous calcium carbonate and a foaming agent are ground and mixed and put into a mold to form a foam glass substrate, the upper surface and the lower surface of the substrate are coated with graphene modified polyurethane coatings respectively, drying is conducted, and the high-strength foam glass is obtained. The foam glass not only has the high mechanical strength and the good anti-bending effect, but also can effectively improve the microporous structure of the surface of the foam glass, and the foam glass hasthe good dampproof, sound absorption and thermal insulation properties and has the good application value and prospect.

The invention relates to the technical field of impregnated paper, in particular to nano high-gloss moistureproof impregnated paper and a preparation method thereof. The impregnated paper comprises awear-resistant layer, a high-gloss hydrophobic layer, an impermeable adhesive layer and a body paper layer which are sequentially arranged from top to bottom, wherein patterns are printed on the bodypaper layer, and the high-gloss hydrophobic layer is made of organic silicone embedded with nanometer aluminum oxide particles. According to the impregnated paper, the wear-resistant layer is adopted,so that the wear resistance and durability of the impregnated paper are improved, the impregnated paper is not prone to damage, and the mechanical property is good; the high-gloss hydrophobic layer and the impermeable adhesive layer are adopted, and the high-gloss hydrophobic layer adopts nano aluminum oxide particles, so that the glossiness and the wear resistance of the impregnated paper can beimproved, and the fluidity of the high-gloss hydrophobic layer in the preparation process can be improved, so that the impregnated paper is uniform and flat; the organic silicone material, so that the impregnated paper has excellent water repellent, waterproof and moistureproof effects, the flexibility of the impregnated paper is improved, and the impregnated paper is long in service life, environmentally friendly, durable, good in surface gloss, simple in structure, low in production cost and high in practicability.

The invention discloses a waterproof and heat-insulation board and belongs to the technical field of waterproof boards. The heat-insulation board comprises a first waterproof layer, a heat-insulation layer, a second waterproof layer and a reflection layer in sequence from bottom to top. The heat-insulation layer comprises heat-insulation fillers and a porous heat-insulation plate. Holes of the porous heat-insulation plate are filled with the heat-insulation fillers. The second waterproof layer and the reflection layer are connected through an adhesive. A PE protective layer is further arranged on the other surface of the first waterproof layer. According to the waterproof and heat-insulation board, both the good waterproof effect and the excellent heat-insulation anti-freezing effect are achieved, inside and outside temperature exchange of a building can be greatly reduced, energy consumption is reduced, the environment-friendly development requirement is met, and good application prospects are achieved.