36results about How to "Slow spread" patented technology

The invention relates to the technical field, and particularly discloses a nano-modified epoxy building thermal insulation material and a preparation method thereof. The nano modified epoxy building thermal insulation material is prepared from the following raw materials in parts by mass: 80 to 120 parts of Portland cement, 20 to 40 parts of slag powder, 5 to 10 parts of hollow mesoporous silicon dioxide, 0.1 to 1 part of pyrrole, 0.1 to 0.2 part of ammonium persulfate, 5 to 10 parts of nano silicon dioxide, 10 to 15 parts of bisphenol S epoxy resin, 1 to 5 parts of acrylic acid, 1 to 2 parts of polylysine, 0.01 to 0.1 part of catalyst and 1 to 2 parts of curing agent. The concrete is prepared from the following raw materials in parts by weight: 20-30 parts of epoxy resin, 4-8 parts of loaded aerogel, 0.1-1 part of polycarboxylate superplasticizer, 1-4 parts of composite fiber and 0.2-1.25 parts of hydrogen peroxide. The fireproof building material has excellent toughness, can better resist cracking and absorb energy, effectively avoids cracking and damage under the action of thermal stress, and ensures that the building material has a fireproof effect.

The invention discloses a protective induction cable convenient to connect, and relates to the technical field of cables, a rubber block is embedded in a fixing groove, a buffer hole channel is formed in the rubber block, an assembling groove is formed in the top of the rubber block, the outer side of an outer conductor is wrapped with a silica gel pad, an outer layer hose is embedded in the assembling groove, and a semicircular ring piece is embedded in a supporting groove. The outer conductor and the inner conductor are better protected under the multi-absorption and multi-buffering effects of the silica gel pad, the outer-layer hose and the rubber block and the supporting arc sheets and the elastic rings and the supporting arc sheets, and under the supporting effect of the rubber block, the outer conductor and the inner conductor are not prone to falling off due to the fact that the outer-layer hose and the rubber block are evenly welded to the outer side of the outer-layer hose and the supporting arc sheets are evenly welded to the outer side of the outer-layer hose, and the supporting arc sheets are welded to the other ends of the three adjacent elastic rings. The groove hole is prevented from being deformed, the cable can operate normally, the silica gel pad can be tightened through the fixing leather strip, when an insulating layer on the outer side of the cable is damaged, the silica gel pad can tightly wrap the outer side of the outer conductor, and the outer conductor is better protected.

The invention discloses a modified CM square electric power corrugated pipe, belongs to the technical field of electric power pipe processing, and aims to solve the technical problem that the burnthrough resistance and the mechanical strength of a square electric power corrugated pipe in the prior art need to be further improved. The corrugated pipe comprises a square pipe and a plurality of corrugated rings arranged outside the square pipe, the square pipe and the corrugated rings are made of a modified CM material, siloxane-enhanced modified chlorinated polyethylene rubber and chlorinated polyvinyl chloride are combined to form a mixed matrix, and the mixed matrix is enhanced by using a composite filler composed of modified inorganic powder and modified glass beads. The tensile property and the impact resistance of the modified CM square electric power corrugated pipe are effectively enhanced, the burn-through resistance and the low temperature resistance of the material are improved, and the modified CM square electric power corrugated pipe is more convenient and more advantageous in practical application by optimizing the structure of the electric power corrugated pipe.

The utility model belongs to the technical field of prefabricated concrete walls, and particularly relates to a building sound insulation concrete wall. The building sound insulation concrete wall comprises a concrete wall body, a plurality of steel bars are transversely and longitudinally arranged in the concrete wall body in a staggered mode, a plurality of sound absorption holes distributed in a rectangular array mode are formed in the concrete wall body, and sound absorption cotton is filled in the sound absorption holes. Fixing net racks are connected to the two sides of the concrete wall body correspondingly, the space between the fixing net racks is filled with sound absorption plates, sound insulation mechanisms are arranged in the net racks, the sound insulation mechanisms are sequentially composed of sound insulation plate layers, sound insulation cotton layers and sound insulation felt sleeves from inside to outside, gypsum boards are arranged on the outer sides of the fixing net racks, and sound insulation layers are arranged on the outer sides of the gypsum boards. The outer side of the gypsum board is connected with a decoration panel in a clamped mode through a plurality of limiting clamping grooves.

The utility model relates to the technical field of glass, and discloses a fireproof multilayer toughened glass, which comprises a toughened glass main body and an aluminum frame, the toughened glass main body comprises a first glass and a second glass, a transparent shell is fixedly arranged on the opposite sides of the first glass and the second glass, fluorescent liquid is arranged in the transparent shell, and the first glass and the second glass are fixedly arranged on the aluminum frame. The first glass comprises a first base layer, a first fireproof layer is fixedly arranged on one side of the first base layer, a first toughening layer is fixedly arranged on one side of the first fireproof layer, and a reflecting layer is fixedly arranged on one side of the first toughening layer. According to the toughened glass, the first glass and the second glass are arranged, the first glass and the second glass are both provided with the fireproof layers, the flame spreading speed can be slowed down when a fire disaster happens, damage to the glass by the fire disaster is reduced, the reflecting layer arranged on the outer side of the first glass can reduce heat loss, and the buffering layer arranged on the outer side of the second glass can reduce heat loss. And surface scratches can be reduced.

The utility model discloses an energy storage device which comprises a box body, a plurality of single batteries and a connecting assembly, the box body is provided with a containing space capable of being opened and closed, the plurality of single batteries are arranged in the containing space in an array mode, the connecting assembly is arranged in the containing space, and the connecting assembly is arranged in the containing space. The connecting assembly comprises a pole piece and a driving part, the pole piece is used for electrically connecting a plurality of single batteries, the pole piece is movably arranged in the accommodating space, and when the accommodating space is opened, the driving part is used for driving the pole piece to move away from the pole column so as to break the electric connection between the adjacent single batteries. Therefore, on one hand, the maintenance difficulty of the energy storage device can be reduced, and the disassembly difficulty of the single batteries is remarkably reduced; and on the other hand, the energy storage device can be quickly powered off, potential safety hazards are eliminated, the spreading speed of thermal runaway is delayed, and the use safety is improved.

The invention relates to the technical field of high polymer materials, and discloses a functional plastic based on a high polymer material and a preparation process thereof, the functional plastic comprises the following raw materials: polypropylene, a flame retardant additive, a smoke suppression functional component, a filler, a stabilizer, an antioxidant and a lubricant; wherein the flame-retardant additive is xylan of which the structure contains a nitrogen-phosphorus flame retardant; the smoke suppression functional component is prepared by complexing iron ions on the surface of kaolin, and the functional plastic prepared by the invention has good flame retardant property and smoke suppression property, and can significantly reduce the spreading speed of flame and reduce the generation of toxic smoke when a fire occurs, thereby reducing the destructiveness of the fire and the risk of casualties, and having good application prospects. The applicability and the safety of the plastic under various environmental conditions are ensured, and the application field of the plastic is widened.

The invention relates to the field of automobile parts, and discloses an automobile side liquefied natural gas cylinder body which comprises an inner container assembly, a steel plate is arranged on the outer wall of the inner container assembly, an outer rear seal head is arranged at one end of the steel plate, an outer front seal head is arranged at the other end of the steel plate, and a protective cover is arranged at the top of the outer rear seal head. A protection cover mounting ring is arranged at the bottom of the outer front end socket, nylon screws are arranged on one side of the protection cover mounting ring, a vacuumizing opening protection cover is mounted on the side, away from the outer front end socket, of the protection cover mounting ring through the nylon screws, and a vacuumizing opening assembly is arranged on one side of the bottom of the outer front end socket. Through the arrangement of the connecting structure, the inner container assembly can be conveniently connected with an external system, the connecting structure is externally protected through the protective cover, the connecting position of the connecting structure and the inner container assembly is protected through the outer rear sealing head, and therefore the effects of conveniently connecting the external system and improving the connecting safety and reliability are achieved.

The utility model discloses a flame-retardant structure of environment-friendly multi-layer plywood, which comprises the multi-layer plywood, the multi-layer plywood is mainly formed by combining a surface layer, a multi-layer board, a back layer and a mounting layer, the thickness of the surface layer is larger than that of the back layer, the back layer is made of flame-retardant fibers, and the mounting layer is made of flame-retardant fibers. A plurality of flame-retardant holes are uniformly formed in the surface layer, a flame retardant I is poured into the flame-retardant holes, the flame retardant I is made of a phosphorus flame retardant, and the flame-retardant holes penetrate through the surface layer and are communicated with the interior of the multi-layer board to form a comprehensive flame-retardant structure, so that the spreading speed of a fire disaster is effectively reduced; the fireproof performance of buildings and furniture is improved.

The utility model relates to the field of firewalls, and discloses an assembly type firewall which comprises a first wall plate, a second wall plate is arranged at the lower end of the first wall plate, a plurality of T-shaped sliding blocks are fixedly connected to the upper surface of the first wall plate and the upper surface of the second wall plate, and T-shaped sliding grooves are formed in the lower surface of the first wall plate and the lower surface of the second wall plate. According to the firewall, through the arrangement of the T-shaped sliding blocks and the T-shaped sliding blocks, the T-shaped sliding block of the second wall plate slides into the T-shaped sliding groove of the first wall plate, so that the firewall is longitudinally assembled, then the fixing bolt is screwed into the threaded hole, one end of the fixing bolt is inserted into the first fixing groove and the second fixing groove, and then the firewall is assembled. Therefore, the plurality of first wallboards and the plurality of second wallboards are transversely mounted through the elasticity of the elastic sheets, and the mounting efficiency of the firewall can be effectively improved through the quick connection structure.

The invention relates to the technical field of electric power materials, in particular to a super-sticky moisture-proof and fireproof blocking adhesive sticker, the super-sticky moisture-proof and fireproof blocking adhesive sticker takes a PET film as a PET base material, a wear-resistant layer is attached to one side of the PET base material, an adhesive layer is attached to the other side of the PET base material, and the PET base material specifically comprises the following components in parts by weight: 80-100 parts of PET particles, 1-2 parts of a curing agent, 1-2 parts of a curing agent and 1-2 parts of a curing agent. The composite material comprises the following components in parts by weight: 2-5 parts of an acrylonitrile-butadiene-styrene copolymer, 5-8 parts of a flame retardant, 0.5-1.5 parts of nano silicon dioxide, 1-2 parts of filling microfibers and 1-2 parts of isopropyl tri (dodecylbenzenesulfonyl) titanate. The adhesive layer specifically comprises the following components in parts by weight: 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of a rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of a flame retardant, 30-50 parts of filler and 3-5 parts of plant essential oil microcapsules. The prepared easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has self-curing performance, the cured easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material can be tightly attached to a protected part, and the easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has excellent waterproof sealing performance and electric leakage resistance, has excellent high-temperature resistance and atmospheric aging resistance, is good in wear resistance, and can be used as a waterproof, moisture-proof and anti-corrosion coiled material. And the material is high in flame-retardant grade, avoids the risk of delayed combustion, and is flexible and convenient to construct on site.

The invention relates to the technical field of fire fighting, in particular to a subway ventilation system fire automatic switching device which comprises an air duct, the air duct is of a vertically-through square cylindrical structure, the lower end of the air duct is an air inlet, the upper end of the air duct is an air outlet, and a fireproof ventilation device is installed in the air duct. The fireproof and smoke exhaust requirements are effectively balanced, a certain ventilation quantity can be kept to assist in smoke exhaust at the initial stage of a fire disaster or under the condition that the fire behavior is small, fire spreading can be effectively stopped through the fireproof row plates arranged in a staggered mode, and double guarantees are provided for safety of a subway system. Along with the increase of fire behavior and the rise of environment temperature, once the melting point of the thermosensitive melting rod is reached, the device is automatically switched to a complete fireproof mode, and the safety of a subway system is further ensured.

The invention discloses a pre-oxidized fiber-based fireproof flame-retardant fabric as well as a preparation method and application thereof, and relates to the technical field of fireproof materials. The fabric comprises a pre-oxidized fiber cloth layer, a pre-oxidized fiber felt layer and a silicon rubber coating; the structure of the fabric is a sandwich structure, the pre-oxidized fiber felt layer is sandwiched between the two pre-oxidized fiber cloth layers, and the outer layer of the sandwich structure is coated with the silicone rubber coating; the pre-oxidized fiber cloth layer is made of high-density pre-oxidized fiber cloth; the silicone rubber coating comprises the following raw materials: 60-80 parts of hydroxyl-terminated fluorine-containing polysiloxane, 5-25 parts of white carbon black, 1-10 parts of hollow glass beads, 1-10 parts of nano silicon dioxide, 2-8 parts of nano aluminum oxide, 2-8 parts of nano magnesium oxide, 1-5 parts of glass fibers, 1-5 parts of PBI fibers, 1-5 parts of melamine fibers, 2-3 parts of diatomite, 3-5 parts of an adhesion promoter, 3-9 parts of a dispersant composition and 25-45 parts of a solvent. According to the fireproof flame-retardant fabric provided by the invention, through the unique design of the sandwich structure and the silicone rubber coating, the high fire resistance, the non-sintering characteristic and the harmlessness to a human body of the fabric are realized.

The invention relates to the field of fire isolation, in particular to a fire isolation system of a special vehicle, which comprises a temperature measurement module used for monitoring the real-time temperature of a battery and the vehicle and generating corresponding temperature data; the emergency response module is used for determining whether a fire disaster occurs or not according to the temperature monitoring state and determining a corresponding isolation mode according to the temperature of the monitoring area; the pop-up module is used for responding to the isolation instruction and controlling a pop-up device to perform a corresponding pop-up action; the protection module is used for setting a corresponding protection cover for isolation according to the isolation instruction; the safety of the equipment is improved, the fire fighting difficulty and the fire spreading speed are reduced, the harm to other vehicles and personnel and the economic loss caused by the fire are reduced, and therefore the vehicle fire control difficulty is reduced.

The invention relates to the technical field of power distribution boxes, in particular to a power utilization safety monitoring method and early warning device for a power distribution box, and the device comprises a body which is provided with a space for installing a power distribution switch, a smoke sensor and other electronic elements. A power distribution switch is installed on the inner wall of the body, an alarm is installed at the top end of the body, a pre-alarm is installed at the top end of the inner wall of the body, a control panel is installed at the position, close to the pre-alarm, of the inner wall of the body, and a temperature sensor and a smoke sensor are installed at one end of the inner wall of the body. Through cooperative use of a second electric push rod, a square frame, a sealing plate, a moving plate and a heat dissipation groove, the purposes of heat dissipation and automatic sealing fire extinguishing can be achieved, the two modes are automatically switched, the time for notifying workers and processing is shortened, the use convenience and safety are improved, the possibility of fire spreading is reduced, and the practicability is high. And the two modes can be used simultaneously.

The invention relates to the technical field of stone-plastic floors, in particular to a flame-retardant stone-plastic floor and a preparation method thereof.The flame-retardant stone-plastic floor comprises a base layer, a middle layer, a surface layer and a coating layer, the middle layer is arranged between the base layer and the surface layer, and the coating layer wraps the base layer, the middle layer and the surface layer; the base layer comprises 60-70 parts of polyvinyl chloride resin, 200-250 parts of calcium carbonate powder, 3-5 parts of a stabilizer and 1-2 parts of a lubricant; according to the scheme, the layers of the floor can play different flame-retardant functions through layered design, a synergistic flame-retardant system is formed, the flame retardant on the surface layer can play a role firstly when being in contact with flames, the flame spreading speed is slowed down, the aluminum hydroxide flame retardant on the middle layer is heated to decompose and absorb a large amount of heat, release water vapor and dilute oxygen concentration, and the flame-retardant effect is achieved. And the ammonium polyphosphate flame retardant of the outer wrapping layer further obstructs flames, the flame retardant effect of the floor can be effectively improved through the layered flame retardant design, and the risk of fire disasters is greatly reduced.

The high-pressure air pump comprises a main body, a rotor assembly and a stator assembly, the rotor assembly is rotationally arranged in the main body, the stator assembly is fixed relative to the main body, the rotor assembly is rotationally connected to the stator assembly, the rotor assembly comprises an inner rotor, the stator assembly comprises a coil assembly and an isolation hood, and the inner rotor is rotationally arranged on the inner side of the isolation hood. The coil assembly is fixedly arranged on the outer side of the isolation cover, the isolation piece is arranged between the coil assembly and the isolation cover in a clamped mode, and the isolation piece is coated with a Teflon coating layer. The arrangement of the isolation sheet effectively isolates part of heat generated by the rotor assembly, improves the effective conversion efficiency of the motor, and reduces the energy consumption.

The invention discloses a polybutadiene latex, wherein the dry base rubber of the polybutadiene latex contains 7-10 g / L of vinyl structure, 18-30 g / L of Trans-1,4 butadiene structure, and 10-24 g / L of Cis-1,4 butadiene structure. The polybutadiene latex of the invention has a low horizontal combustion speed. The invention also discloses a preparation method of the polybutadiene latex and an application thereof in ABS high-rubber powder, wherein the ABS resin obtained by blending the ABS high-rubber powder has a low horizontal combustion speed.

The invention discloses a compact shelf capable of being rapidly adjusted based on the Internet of Things and a using method thereof, and relates to the technical field of the Internet of Things. The compact shelf comprises a shelf body, a sliding rail is slidably connected to the bottom of the shelf body, a processing screen is fixedly connected to the side wall of the shelf body, and a crank is rotatably connected to the side wall of the shelf body; a fireproof early warning mechanism is arranged on the surface of the top of the shelf body, an opening and closing mechanism is arranged in the shelf body, and the opening and closing mechanism is installed on the compact shelf, so that privacy protection can be provided to a certain degree, articles stored in the compact shelf are not directly exposed to the outside, which is very important for storing some sensitive or high-privacy articles. In addition, dust and sundries can be effectively prevented from entering the compact shelf, stored articles are kept clean and neat, a layer of protection can be provided, the articles are prevented from being influenced by the external environment, and when a fire disaster occurs, the fire can be blocked outside, and a layer of protection is provided for the articles in the compact shelf.

The utility model relates to the technical field of building fire fighting, in particular to a control system for building fire fighting, which comprises a controller, a spraying mechanism, a fire detector and a positioning module, the spraying mechanism comprises a plurality of first spraying heads and a movable spraying assembly; the movable spraying assembly comprises a fire-fighting water tank, a pressure pump, a plurality of second spraying heads and a movable assembly; the second spraying heads are arranged between two adjacent rows or two adjacent columns of first spraying heads; the fire water tank is connected with the pressure pump through a water pipe, a hose is arranged between the pressure pump and the first spraying head, and the controller is connected with the pressure pump and used for controlling starting and stopping of the pressure pump. The fire detector is used for detecting each area of a building in real time, if an area is on fire, the first spray head in the area sprays water to extinguish fire, meanwhile, the corresponding second spray head is controlled to move into the area on fire to spray water to extinguish fire, the water potential is increased by increasing the number of the spray heads, the spreading speed of the fire is reduced, and the fire extinguishing efficiency is improved. And therefore, the fire extinguishing timeliness is improved.

The utility model discloses an electronic component dip soldering tin soldering table which comprises a tin soldering working table, a tin soldering working box is installed at the top end of the tin soldering working table, and a first electric telescopic rod is installed at the top end of the inner side of the tin soldering working box. According to the dip soldering tin soldering table for the electronic components, through a second electric telescopic rod and a rotary knob, electrical components with different sizes and different thicknesses are clamped, a tin soldering gun can conveniently conduct tin soldering work on the electrical components, and through cooperation with an anti-skid pad, clamping replacement of the electrical components is stable; by means of the driving motor and the rotating block, the electrical components can be turned over conveniently, people do not need to turn over the electrical components for soldering work, and the working efficiency is effectively improved; and through the electromagnetic sliding block and the electromagnetic sliding rail, front-back movement of the tin soldering gun is achieved, multi-directional tin soldering work on the electric appliance element is completed in one step, the position of the electric appliance element does not need to be adjusted back and forth, and the overall working efficiency is improved.

The utility model provides a biomass boiler stokehole fire-retardant device, which relates to the technical field of fire-retardant devices and comprises a main body mechanism, and a fire-retardant mechanism is fixedly mounted at the input end of the main body mechanism and comprises a conveyor. According to the cooling water spraying device, under the cooperation of the main body mechanism and the fire retarding mechanism, the spray head sprays cooling water in the water pipe to the surface of the conveyor, then the motor is started to drive the rotating brush to rotate on the surface of the conveyor, the cooling water is evenly smeared on the surface of the conveyor, and the temperature in the conveyor is rapidly reduced; unnecessary loss caused by spontaneous combustion due to continuous temperature rise of internal materials due to heat transfer into the feeding pipe and the storage bin is avoided, the utilization rate of the materials is increased, the probability of spontaneous combustion of the materials is reduced, the fire spreading speed can be reduced, and damage to the device due to continuous expansion of the fire is prevented; and threats are caused to surrounding equipment and human health of operators.

The utility model relates to the technical field of battery packs, and discloses an efficient heat dissipation battery pack which comprises a battery pack body, a positioning rod is arranged in the battery pack body, and a spring, a sliding block, a movable plate and a fuse are connected to the surface of the positioning rod in a sleeved mode. The dry powder fire extinguisher is reasonable in structure, the movable plate moves rightwards to cause the trigger rod to move rightwards at the same time, the dry powder fire extinguisher is triggered to spray dry powder to the lithium battery due to the fact that the trigger rod moves rightwards, and pressure generated by the lithium battery can be continuously discharged through the pressure relief valve to avoid explosion of the lithium battery; the problem that in the driving process of a driver, due to spontaneous combustion of a lithium battery, the driver is in danger and cannot escape in time is solved, the battery line is separated from the lithium battery through leftward movement of the line pipe, and the problem that the lithium battery is damaged due to spontaneous combustion of the battery line is solved; the cooling liquid circulates in the cooling pipeline, and the problem that the lithium battery is damaged due to the fact that the temperature of the battery pack is too high is solved.

The flame-retardant wear-resistant heat-shrinkable sleeve is prepared from the following raw materials in parts by weight: 30-50 parts of an ethylene-acetic ether copolymer, 20-40 parts of nitrile rubber, 10-15 parts of polytetrafluoroethylene, 25 parts of polyethylene resin, 5-15 parts of a compatilizer, 3-8 parts of a material reinforcing agent, 1-5 parts of a silane coupling agent, 40-80 parts of a flame retardant, 1-3 parts of an antioxidant, 0.5-1 part of a lubricant and 1-3 parts of an assistant crosslinker. Comprising the following steps: premixing nitrile rubber, namely premixing 25 parts of nitrile rubber, 5 parts of reinforcing material and 2 parts of silane coupling on an open mill to obtain nitrile rubber compound; on the basis of certain flexibility, the wear resistance of the material is enhanced, and meanwhile, the material also has relatively good flame retardant property.

The invention discloses a plate-type traction lead-acid storage battery with a protection structure, and relates to the technical field of batteries, a cavity is arranged in the inner and outer side end walls of the periphery of a battery main body, and a first communication box communicated with the cavity is arranged at the top of a battery cover, so that when the inner side end wall is extruded due to gas expansion in the battery main body, the inner side end wall is blocked, and the inner side end wall is blocked; liquid in a cavity can be squeezed into a first communication box to push a push block, by means of meshing of a rack rod and a gear ring, a disc is driven to rotate, a groove is aligned with a through hole formed in the disc, exhaust operation is conducted, a second spring is arranged in the first communication box to conduct springback reset on the push block, and the liquid in the cavity can be squeezed into the first communication box to push the push block. The through holes in the groove and the disc are reset and closed after exhausting is completed, so that external impurities are prevented from entering the battery main body to pollute the electrolyte, the electrolyte is effectively prevented from leaking due to side turning and dumping, and the running stability of the battery is improved to a certain extent.

The present invention relates to the technical field of copper clad laminate preparation, specifically an aluminum hydroxide filled epoxy resin for copper clad laminate and a preparation method thereof. The present invention obtains a core-shell toughening filler by adding an emulsifier, deionized water, n-butyl acrylate, 1,4-butanediol diacrylate, an initiator, a core layer pre-emulsion and a shell layer pre-emulsion. Polysiloxane is obtained by adding modified silane, dimethyldimethoxysilane, deionized water, a catalyst, a capping agent and acetic acid. A core-shell flame retardant is obtained by adding aluminum hydroxide powder, anhydrous ethanol and phosphoric acid; and then polysiloxane, a core-shell flame retardant and anhydrous ethanol are mixed to obtain a composite flame retardant. Finally, epoxy resin, a composite flame retardant, a core-shell toughening filler, a curing agent, a curing accelerator and a solvent are mixed, and a finished product is obtained by high-speed stirring. The finished product obtained by the present invention has good flame retardancy and mechanical properties, and therefore has broad application prospects in the technical field of copper clad laminates.

The utility model discloses a heat-insulation fireproof curtain wall, and belongs to the technical field of building curtain walls, and the heat-insulation fireproof curtain wall is characterized by comprising a frame main body, heat-insulation glass, a filling cavity arranged in the frame main body and filled with a high-pressure fire extinguishing agent; the nozzle is mounted in the frame main body and is connected with the filling cavity; the sensor is mounted on the frame main body; the photovoltaic panel is mounted outside the frame main body; the pushing device is arranged between the nozzle and the frame main body; wherein the photovoltaic panel is provided with a storage battery, and the sensor and the pushing device are both connected with the storage battery. The curtain wall can reduce the fire spreading speed of the curtain on the inner side of the curtain wall and prolong the fire fighting time.

The invention discloses an ultralow-temperature fireproof anti-static ball valve which comprises a valve body, a medium inflow pipeline, a medium outflow pipeline, a spherical middle cavity, a spherical valve element, a valve rod, a first sealing groove, a second sealing groove, a sealing assembly, a fireproof assembly, a static guiding mechanism, a grounding guiding wire and a conductive block. The other end of the valve body is provided with a medium flowing-in pipeline used for flowing out of a medium, a spherical middle cavity is formed in the center of the interior of the valve body, the medium flowing-in pipeline and the medium flowing-out pipeline are communicated with each other through the spherical middle cavity, a spherical valve element is arranged in the spherical middle cavity, and the top of the spherical valve element is fixedly connected with a valve rod. The top of the valve rod penetrates through the outside of the valve body to facilitate opening and closing operation, the bottom of the valve rod is connected with the spherical valve element in the spherical middle cavity, the fireproof and anti-static effects can be achieved, normal use of the valve is guaranteed, and the service life of the structure is prolonged.

The utility model discloses a high-crease-resistance linen yarn which comprises a yarn body, and the yarn body comprises a core yarn, a wrapping layer and a fasciated yarn. The covering layer covers the outer side of the core yarn, and the fasciated yarn is spirally wound on the outer side of the covering layer; the core yarns are elastic composite yarns; the fasciated yarn is formed by doubling and twisting linen fiber yarn and colored polyester filament yarn. Based on the high-crease-resistance linen yarn, the elastic composite yarn is used as the core yarn, and the yarn body is endowed with good elasticity, namely good crease resistance, so that a fabric woven by the yarn body can slowly recover to the original shape after deformation; the wrapping layer endows the yarn body with good flame retardant performance, flame spreading speed can be slowed down, the yarn body can be self-extinguished quickly after leaving the flame and does not burn any more, and the flame retardant purpose is achieved. The fasciated yarn formed by doubling and twisting the linen fiber yarn and the colored polyester filament yarn can enrich the appearance of the yarn main body, so that the yarn main body has a weak segment color effect in the length direction.