46results about How to "Good waterproof and corrosion resistance" patented technology

The invention provides a purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable which comprises conductors. Each conductor is covered with a shield layer, the shield layer is covered with a purple-light cross-linked insulating layer, the purple-light cross-linked insulating layer is covered with a ceramic silicone rubber layer, and the ceramic silicon rubber layer is covered with an anticorrosive layer. Flame-retardant glass fiber filling ropes are filled among the conductors, the conductors and the flame-retardant glass fiber filling ropes are together covered with a flame-retardant tape, the flame-retardant tape is covered with an internal purple-light cross-linked protective layer, the internal purple-light cross-linked protective layer is provided with an armor layer, the armor layer is covered with an external purple-light cross-linked protective layer, the external purple-light cross-linked protective layer is covered with a waterproof layer, the waterproof layer is covered with an SBS rubber layer, and the SBS rubber layer is coated with an ultraviolet-proof layer. The invention further provides a production method of the cable. The purple-light cross-linked low-smoke halogen-free high flame-retardant EVA cable is provided with multiple flame-retardant layers and the waterproof layer.

The invention relates to strippable heat-proof antirust protective film coating and a preparation method thereof. The raw material of the protective film coating is formed by paint and curing agent. The paint comprises, by weight, 88-96 parts of linear chain polyester resin or acrylic resin containing hydroxide radical, 2.0-5.0 parts of stripping accelerant, 1.0-3.0 parts of film-forming accelerant, 0.5-2.0 parts of antifoaming agent and 0.5-2.0 parts of flatting agent. The curing agent comprises, by weight, 25-40 parts isocyanate polymer. The linear chain polyester resin or the acrylic resin containing the hydroxide radical is heated and stirred and then added in other components except the curing agent, the isocyanate polymer is added in the mixture during usage, and the strippable heat-proof antirust protective film coating is obtained after even mixing. The strippable heat-proof antirust protective film coating does not contain solvent, meets environment-friendly requirements, simultaneously has high waterproof performance, oil resistance, temperature resistance, abrasion resistance and strippable performance, can have metal surfaces, stripping surfaces, plastic surfaces and the like at the same time, and has temporary antirust protection effects.

The invention provides an irradiation-resistant halogen-free high-flame-retardant EVA electric wire which comprises a conductor. A shielding layer is arranged outside the conductor. An irradiation-resistant flame-retardant EVA insulating layer is arranged outside the shielding layer. A fireproof layer is arranged outside the irradiation-resistant flame-retardant EVA insulating layer. A high-temperature-resistant layer is arranged outside the fireproof layer. The conductor is filled with a flame-retardant fiberglass filling rope. A flame-retardant belt is arranged outside the whole conductor and the flame-retardant fiberglass filling rope. An inner irradiation-resistant flame-retardant EVA layer is arranged outside the flame-retardant belt. An armor layer is arranged outside the inner irradiation-resistant flame-retardant EVA layer. An outer irradiation-resistant flame-retardant EVA layer is arranged outside the armor layer. A waterproof and corrosion-proof layer is arranged outside the outer irradiation-resistant flame-retardant EVA layer. A wearing layer is arranged outside the waterproof and corrosion-proof layer. The exterior of the wearing layer is coated with an irradiation-resistant layer. The invention further provides a preparation method of the electric wire. The irradiation-resistant halogen-free high-flame-retardant EVA electric wire is obtained due to the arrangement of the multiple irradiation-resistant layers and the multiple flame-retardant layers.

The invention provides a water-proof anti-corrosion electric power flexible cable which comprises a conductor (1). A conductor shielding layer (3), a rubber insulation layer (4), an insulation shielding layer (5), a first braided shielding layer (7), an inner sheath (9), a second braided shielding layer (10), a water-proof layer (11) and an outer sheath (12) are sequentially wrapped on the periphery of the conductor (1) from the inside to the outside. The outer sheath is made of chlorosulfonated polyethylene rubber which is composed of the following raw materials, by weight, 100 parts of chlorosulfonated polyethylene rubber, 6-12 parts of dichloro ureide, 6-9 parts of antimony oxide, 3-10 parts of alkali lead phthalate, 50-70 parts of argil, 3-7 parts of triallyl isocyanurate, 3-4 parts of N-phenyl-a-naphthylamine, 1-2 parts of vinyl silane, 70-80 parts of carbon black, 2-4 parts of dioctyl phthalate, 18-25 parts of chlorinated paraffin oil and 1-3 parts of dissoluble polytetrafluoroethylene. The water-proof anti-corrosion electric power flexible cable has good water-proof and anti-corrosion performance and prolongs the service life.

The invention discloses a metal anticorrosive paint which is prepared by stirring the following raw materials in parts by weight: 100-110 parts of epoxy resin, 20-30 parts of benzoic acid resin, 10-15 parts of diphenyl ether resin, 15-18 parts of dimethylbenzene, 15-25 parts of cerium oxide, 6-10 parts of n-butanol, 8-12 parts of polybenzimidazole, 10-12 parts of KH-550, 10-15 parts of talcum powder, 3-8 parts of dimethylethanolamine, 6-10 parts of barium dinonylnaphthalene sulfonate and 50-60 parts of water. The commercial test proves that the prepared paint has the advantages of excellent water resistance and excellent corrosion resistance, can implement passivation and corrosion inhibition of the metal substrate, avoids using chrome and other heavy metals possibly causing environmental pollution, is simple to prepare and low in cost, and can be easily put into industrial production.

The invention discloses a sea cable comprising a sea cable comprising 4 cable wires; the surfaces of the 4 cable wires are provided with a glass fiber insulation layer; a ceramic polyolefin thermal-insulation layer is arranged between the cable wire and the glass fiber insulation layer; one side, far away from the ceramic polyolefin thermal-insulation layer, of the glass fiber insulation layer isprovided with a waterproof layer; the waterproof layer comprises a polyethylene glycol terephthalate layer. The waterproof layer, the polyethylene glycol terephthalate layer, a polyurethane layer, a PTFE layer, a corrosion resistance layer, a polyethylene layer, an epoxy resin layer, a polycarbamate layer and an aluminium alloy protection layer are matched in usage, thus solving the problems thatan existing sea cable is poor in a waterproof corrosion resistance effect on the seabed, so the cable is easy to be damaged; the sea cable is good in waterproof corrosion resistance effects, can prolong the sea cable service life, and can improve the practical value of the sea cable.

The invention provides an environmentally-friendly high-permeability modified epoxy rusty coating, and belongs to the technical field of coatings. The coating is composed of a component A and a component B, the component A comprises at least one of a glycidyl ether compound and a mixture of an aldehyde compound and a ketone compound, at least one of a rust stabilizer and a rust conversion agent, epoxy resin, an interface agent and an antirust filler, and the component B comprises an amine curing agent, a curing accelerator and a moisture-consuming functional curing agent. The aldehyde compound, the ketone compound and the glycidyl ether compound enable the coating to have excellent permeability, and also can participate in system reactions under the action of the amine curing agent, so that the problem of environmental pollution caused by VOCs generated in the film forming process is greatly reduced, and the flexibility and the adhesive property of the coating are improved; and the moisture-consuming functional curing agent can consume moisture in a rust layer, so it is ensured that the rust layer is not rusted any more, and the curing of the epoxy resin is also ensured.

The invention discloses a prefabricated concrete pipe pile for an overhead power transmission line. The prefabricated concrete pipe pile comprises a hollow pipe pile and a pile head; the hollow pipe pile comprises an upper pipe pile and a lower pipe pile, the outer diameter of the upper pipe pile is larger than that of the lower pipe pile, and a screw is arranged on the exterior of the lower pipe pile; a pile expanding device is arranged on the lower pipe pile and comprises two arc-shaped grooves which are formed in the symmetrical positions of the same circumference of the lower pipe pile, an annular steel plate matched with the corresponding arc-shaped groove is hinged to the bottom of each arc-shaped groove, the tail end of each annular steel plate stretches out of the corresponding arc-shaped groove, and the direction that the annular steel plates are arranged in the arc-shaped grooves is consistent with the screwing-in direction of the screw. According to the prefabricated concrete pipe pile for the overhead power transmission line, foundation settlement can be reduced, the rigidity of the pipe pile can be improved, the using amount of concrete can be decreased, and the construction cost of the prefabricated pipe pile can be reduced; in addition, the strength of the concrete is high, the contact area of the prefabricated pipe pile and soil mass is large, and therefore the bearing capacity of the prefabricated pipe pile can be enhanced.

The invention discloses a silicon carbide fiber cable material and a preparation method thereof. The silicon carbide fiber cable material is prepared from the following raw materials in parts by weight: 30 to 50 parts of organic silicon modified acrylate, 35 to 45 parts of epoxy resin, 20 to 30 parts of BNDB, 5 to 15 parts of styrene, 10 to 20 parts of No. 800 paraffin base rubber oil, 9 to 15 parts of pentaerythritol, 10 to 20 parts of chlorinated polyethylene, 10 to 20 parts of ethylene-octene copolymer elastomer, 8 to 12 parts of silicon carbide fiber, 4 to 8 parts of active magnesium oxide, 4 to 8 parts of active zinc oxide, 6 to 12 parts of calcium carbonate, 3 to 7 parts of microcrystalline wax, 1 to 5 parts of plasticizer, 1 to 5 parts of fire retardant, 1 to 5 parts of antioxidant and 1 to 3 parts of stabilizer. The preparation method of the silicon carbide fiber cable material comprises the steps of performing crushing, inductive heat treatment, mixing, pelleting and the like on the raw materials. The silicon carbide fiber cable material provided by the invention is simple in preparation, excellent in flame retardant property, and good in waterproofness and corrosion resistance, does not easy to age, is high in tensile strength and compressive strength and long in service life, can be widely applied in various fields, and has a good market prospect.

The invention relates to the field of bulletproof materials and discloses a bulletproof polyurethane-fiber composite material and a preparation method thereof. The polyurethane-fiber composite material comprises the following components in percent by weight: 20wt.%-60wt.% of fiber and 40wt.%-80wt.% of polyurethane composition, wherein the polyurethane composition is prepared by mixing a componentA and a component B according to the volume ratio of 1-10:1; the component A is isocyanate prepolymer synthesized by 40wt.%-60wt.% of isocyanate and 40wt.%-60wt.% of polymer polyol; the component B isprepared by mixing 25wt.%-30wt.% of chain expanding agent, 20wt.%-45wt.% of aerogel, 0.1wt.%-1wt.% of dispersing agent, 20wt.%-30wt.% of filler and 0.1wt.%-1wt.% of catalyst. The polyurethane-fiber composite material and the preparation method disclosed by the invention have the beneficial effects that the instantaneous deformation resistance and capability of responding to bad weather environment of a bulletproof plate can be enhanced, and better protection can be provided for the material and structure of a bullet inserting plate, so that the protective capability and the service life of the bulletproof plate are improved; simultaneously, due to good toughness of the polyurethane material, certain buffering-layer action also can be achieved, and the damage caused by deformation of the bulletproof inserting plate can be reduced.

The invention discloses a waterproof anti-corrosion rubber material for automobile seal strips, wherein the rubber material is prepared from the following raw materials in parts by weight: 100-120 parts of ethylene-propylene-diene monomer, 40-60 parts of white carbon black, 2-4 parts of zinc oxide, 1.5-2.5 parts of sulfur S80, 1.5-2.5 parts of an anti-aging agent MB, 0.3-0.5 part of an accelerator TMTD, 0.5-1 part of zinc naphthenate, 3-5 parts of trimethoxymethylsilane, 0.3-0.5 part of petroleum sodium sulfonate, 0.5-1 part of tetrabutyl titanate, 0.15-0.25 part of a titanate coupling agent NDZ-401, 6-8 parts of a nano graphite powder, 1-2 parts of a polytetrafluoroethylene wax micro-powder, 15-25 parts of castor oil, and 3-5 parts of hydroxyl-fluoro silicone oil. The rubber material has the advantages of good abrasion resistance, lasting antifriction performance, and good waterproof and anti-corrosion properties, and has the advantages of long service life and good sealing performance when used as automobile seal strip materials.

The invention discloses an unmanned aerial vehicle bird repelling device, relates to the technical field of unmanned aerial vehicles, and aims to solve the problems of long bird repelling time and slow effect due to the fact that manual patrol and vehicle patrol are adopted in airports generally and multiple persons and multiple devices are allocated for patrol. The unmanned aerial vehicle bird repelling device is characterized in that a second bearing shell body is arranged below a first bearing shell body, a positioning table is arranged above the first bearing shell body, the positioning table and the first bearing shell body are integrally formed, six tweeters are mounted on the two sides of the positioning table, five flashing lights are mounted on the periphery of the first bearing shell body and below the second bearing shell body, four ultrasonic horns are mounted between the adjacent flashing lights on the periphery of the first bearing shell body, and a high-definition camera is mounted below the ultrasonic horn at the front end.

The invention discloses a wood-plastic cable trough cover extrusion die which comprises a die plate (1). The extrusion die is characterized in that a plurality of round holes (11) are formed in the die plate (1), a die hole (12) is formed in the middle of the die plate (1), a horizontal hole (121) is formed in the die plate (12), S-shaped holes (122) are symmetrically formed in the two ends of the horizontal hole (121), the right side of each S-shaped hole (122) is provided with a right arc-shaped protrusion (1221), and the left side face of each S-shaped hole (122) is provided with a left arc-shaped protrusion (1222). A product processed through the extrusion die is high in strength, good in waterproof performance and corrosion resistance, low in cost and long in service life.

The invention relates to a three-network copolymerized castable for a bus duct. The castable comprises the following components in parts by mass: 10-30 parts of a prepolymer of hexamethylene diisocyanate (HDI) tripolymer; 10 to 30 parts of a prepolymer of norbornane diisocyanate (NBDI) and polyether polyol; 5 to 15 parts of epoxy resin E51; adding a cross-linking agent according to the calculatedamount; 15-20 parts of aluminum hydroxide powder; 20 to 25 parts of aluminum oxide; and 1 to 25 parts of chopped glass fiber shreds; according to the invention, HDI, NBDI and epoxy resin E51 are usedas resin bases; the three-network copolymerized pouring material for the bus duct is prepared by adding a proper amount of water into the raw materials to form a network structure in a three-network copolymerized form, and adding a proper amount of filler, and has the advantages of very good loading property, excellent weather resistance, excellent chemical resistance, excellent flame retardancy,excellent water resistance and excellent corrosion resistance, and greatly prolonged service life.

The invention relates to the field of warm-keeping houses, in particular to a warm-keeping house. The warm-keeping house aims to solve the problems that power consumption is large and potential safetyhazards exist due to the fact that electric heaters and other independent heating products need to be used due to the fact that an existing portable house does not have an independent heating function when used in the northeast of China, environmental protection is poor and the construction difficulty is large due to the fact that a portable house with a heat preservation layer is made of organicheat preservation materials and a common portable house is not provided with the heat preservation layer, the potential safety hazard of safe sinking exists when the portable house is used on the river surface due to heavy weight, and the appearance and color are single. According to the warm-keeping house, a wall body is sequentially provided with a shell, a waterproof layer, the heat preservation layer, a single-phase counter-heating layer, a graphene electric heating layer and a heat conduction layer from outside to inside, the wall surface can achieve the self-heating purpose, and the heat preservation performance is better; and a joint transition position between the wall body and a door and window adopts a sealing system formed by two new materials of a waterproof vapor-proof film and a waterproof vapor-permeable film, so that the airtightness of the warm-keeping house is improved, and the warm-keeping function is enhanced.

The invention provides a preparation method of waterproof and moldproof paint for a cupboard. The preparation method comprises the following steps of weighing the following raw materials including organosilicone modified polyacrylamide, polyketone resin, polyether resin, graphene modified polyvinyl alcohol, nanometer titanium dioxide, antimonous oxide, chlorinated paraffin, nanometer magnesium hydroxide, superfine mica powder, white carbon black, nanometer silicon dioxide, high viscosity attapulgite clay, diatomite, an moldproof additive, a pigment and a defoamer, respectively crushing the rawmaterials, and performing uniform mixing to obtain a paint film. The preparation method of the waterproof and moldproof paint for the cupboard is simple in process and convenient to operate; and theprepared paint is applied to the cupboard, has the characteristics of rapid drying speed, good waterproof performance, good corrosion resistant performance and strong adhesion force, also has better flame retardant performance and self-cleaning performance, effectively inhibits breeding of molds and provides guarantee to safe and long-term use of the cupboard.

The invention discloses a saline-alkali-resistant soil buried protection pipe integrated control cable. The cable comprises a cable body, a plurality of groups of cable cores are uniformly distributed in the cable body, the outer rings of the plurality of groups of cable cores are wrapped with a belting layer, the outer side of the belting layer is provided with an aramid fiber reinforcement layer, the outer side of the aramid fiber reinforcement layer is sleeved with an expansion sheath, the expansion sheath is attached to the inner side of a metal shielding pipe, a blocking layer is arranged on the outer side of the metal shielding pipe, and a low-density oil cavity is formed in the lower half area between the blocking layer and the metal shielding pipe. According to the saline-alkali-resistant soil buried protection pipe integrated control cable, the cable and the outer protection pipe are combined together to form an integrated structure, on one hand, the procedure of independently sleeving the protection pipe is reduced, on the other hand, the metal pipe is directly used as an armored shielding layer of the cable, the procedure and materials for installing the armored shielding layer of the cable are reduced, and the cable is suitable for different working conditions and brings better use prospects.