278results about How to "With waterproof effect" patented technology

The invention discloses environmental-friendly waterproof and breathable clothing leather and a preparation method thereof. The preparation method comprises the following steps: adding preparations such as a water-based thickening agent, a defoaming agent, a leveling agent, microporous filler and a curing agent into water-based polyurethane resin, and carrying out mixing and vacuum defoaming to form a water-based polyurethane resin slurry surface layer and bottom layer respectively; and by a processing method with dry-process film transferring, firstly coating release paper with the surface layer, then coating the release paper with the bottom layer after drying and cooling, drying at low temperature, then attaching base cloth at high temperature, drying, curing, cooling, stripping the release paper, bundling, and carrying out surface after-treatment, thereby obtaining the environmental-friendly waterproof and breathable clothing leather. The environmental-friendly waterproof and breathable clothing leather disclosed by the invention has the advantages that the problems of environmental pollution and residue of organic solvents for preparing existing clothing leather are solved, and the water-pressure resistance, the yellowing resistance, the waterproof effect, the breathable function and the like of the clothing leather are improved.

The invention discloses a patching material for processing building cracks, which is prepared from powders of group A, liquid materials of group B through mixing, wherein the weight proportion of the powders of the group A to the liquid materials of the group B is between 0.8 and 2 to 1. The content range of each composition of the powders of the group A is as follows: 30 to 80 percent of 425 Portland cement, 10 to 50 percent of quartz powders, 5 to 30 percent of nano-size calcium carbonate, 1 to 5 percent of polypropylene short fiber, 1 to 10 percent of wood fiber, 1 to 10 percent of methyl cellulose, and 1 to 10 percent of calcium formate; and the content range of each composition of the liquid materials of the group B is as follows: 10 to 80 percent of pure acrylic resin copolymer emulsion, 0.1 to 1 percent of defoamer, 1 to 11 percent of bactericidal preservative, 1 to 12 percent of alkaline swelling thickener, 0.5 to 12 percent of pH modifier, 5 to 20 percent of talc powders, and 10 to 40 percent of water. The construction process of the patching material is performed according to the following steps: base course processing, patching material scraping, and surface layer brushing. A product of the patching material has the advantages of strong cohesive force, high mechanical strength, impact resistance, shock resistance, insolation resistance, water immersion resistance, chemical corrosion resistance, no pollution, excellent physical and chemical properties of the product, strong stress resistance, and certain waterproof effect.

The invention discloses a double-component external wall heat-insulating putty having a water resistance effect and a preparation method thereof. The double-component external wall heat-insulating putty is characterized by comprising a component A and a component B, wherein the component A is prepared from 10.0-20.0% of water, 30.0-40.0% of emulsion, 0.1-0.2% of multifunctional aid, 0.2-0.5% of defoaming agent, 0.2-0.4% of wetting agent, 1.0-1.5% of ethylene glycol, 1.5-2.0% of film forming aid and 0.2-0.4% of thickener; the component B is prepared from 40.0-55.0% of 425 black cement, 40.0-50.0% of hollow glass bead, 2.0-3.0% of water repellent, 3.0-6.0% of wollastonite powder, 0.6-1.0% of cellulose, 6.0-8.0% of rubber powder, 0.4-0.6% of wood fiber and 0.4-0.6% of polypropylene fiber; and when in use, the component A and the component B are uniformly mixed according to a ratio of 1:1.2. The double-component external wall heat-insulating putty is suitable for surface heat insulation of a building external wall, has a heat-insulating function, and also has water resistance, fire resistance and crack resistance functions, thereby having important meanings for external wall heat insulation and protection.

The invention discloses a foamed cement backfilling structure of a caisson type toilet. The foamed cement backfilling structure comprises a reinforced concrete floor slab at the bottom layer, a foamed cement concrete layer and a ceramic tile finish layer, wherein the foamed cement concrete layer is located on the surface of the reinforced concrete floor slab, and the ceramic tile finish layer is arranged on the surface of the foamed cement concrete layer; a toilet stool is arranged on the surface of the ceramic tile finish layer; and an outlet is formed in the bottom of the toilet stool, and the outlet is connected with a main downcomer through a primary drain-pipe arranged in the foamed cement concrete layer in a through connection mode. The foamed cement backfilling structure is characterized in that the foamed cement concrete layer is inclined towards one side, and a groove A is formed in the bottom end of the bevel of the foamed cement concrete layer; and a plurality of grooves B are formed in the foamed cement concrete layer in the inclined direction; the groove A and each groove B intersect with each other; and a drain hole is formed in the bottom of the groove A, and the drain hole connected with the main downcomer through a secondary drain-pipe arranged in the foamed cement concrete layer in a through connection mode. In addition, the invention further provides a backfilling method of the foamed cement backfilling structure of the caisson type toilet. According to the foamed cement backfilling structure of the caisson type toilet, the structure is simple, the water draining effect is good, the foamed cement backfilling structure is beneficial to avoiding water accumulating of the toilet, and then water leakage is further avoided, and furthermore, on-site backfilling can be achieved.

The invention provides a preparation method of flame-retardant antibacterial water-based coating. The content of a plant extract is 0.1-5%; and the plant extract is one or more of a wormwood extract,a Sarcandra glabra extract, a lavender extract, a valerian extract and a seaweed extract, or one or more of quercetin, salicylic acid, emodin, menthol, menthone, hyperoside, fumaric acid, linalool, caffeic acid, calcium alginate and sodium alginate, and slows the coating to have a plant natural antibacterial effect. A preparation process of the coating also comprises the following steps: preparinga film-forming substance, preparing color paste, preparing a diatomite porous material, preparing a functional modifier containing the plant extract, and preparing the water-based coating. Through the preparation process, the flame retardant property of the coating and the mechanical strength of a coating film are improved at the same time, and the application field of the coating is widened.

The invention discloses a fabricated wall structure. According to the technical scheme, the fabricated wall structure comprises plates and pipes for being connected with the plates, the outer walls ofthe pipes are recessed in the radial direction in the direction of the axes of the pipes to form guide grooves, the guide grooves are vertically through in the length direction of the pipes, groovesmatched with the shape of the pipes are formed in the two sides of each plate, waterproof plates are fixed into the grooves, and the waterproof plates and the guide grooves are matched and slide relatively. The problem that water seepage happens at the joint of an existing fabricated wall structure is solved.

The invention discloses a flexible LED (Light Emitting Diode) display screen which comprises screen body cloth, a plurality of rear pressure plates and a plurality of LED unit modules. Each LED unit module comprises a shell, a lamp plate and a plurality of LED lamps. The LED lamps are arranged on each lamp plate in an array with at least two rows and two lines. Each lamp plate is arranged in the corresponding shell. The lamp plate of each LED unit module is connected to the front side of the screen body cloth, so that the LED unit modules form an LED unit module array on the screen body cloth. The rear pressure plates are arranged on the rear side of the screen body cloth, each rear pressure plate is respectively opposite to each LED unit module, and a fixed hole is arranged in the screen body cloth. A fixed piece passing through the fixed hole fixes the rear pressure plates on both sides of the screen body cloth with the LED unit modules.

The invention reveals a waterproof and radiation-proof fabric, which comprises a matrix and a waterproof layer on the matrix surface. The matrix is formed by mutual braiding of warps and wefts. Specifically, the warps are formed by blended braiding of nano-far-infrared ceramic fibers and mercerized cotton fibers, and the wefts are formed by blended braiding of bamboo fibers and babai yarns, and the waterproof layer is composed of a microporous polyurethane membrane. The radiation-proof fabric layer formed by blended braiding of radiation-proof fibers and breathable, light and thin fabric fibers not only has a radiation-proof function, but also is comfortable to wear simultaneously, and can remove the moisture sent from bodies and maintain human bodies dry and comfortable. The surface waterproof layer can endow the garment fabric with a waterproof effect, so that the fabric does not become humid even if it is splashed with water. Thus, the fabric provided in the invention provides convenience for people to travel outside.

The invention relates to wallpaper, and provides novel wallpaper capable of releasing anions and a preparation method thereof. The problems that wallpaper in the prior art cannot release anions, or few anions can be released, releasing time is short, and the stereoscopic effect is poor are solved. The preparation method comprises the steps that a base material is prepared, the base material is coated with a layer of precoat liquid for surface treatment, a precoat liquid layer is formed after drying, and then the surface of the precoat liquid layer is coated with pulp; after surface drying is carried out at the temperature of 150 DEG C to 170 DEG C, the temperature is raised to 190 DEG C to 200 DEG C, pressure of 1.5*105 Pa to 5.2*105 Pa is applied, then drying, winding and normal-temperature curing are carried out, and a foaming pulp layer is formed; finally, the surface of the foaming pulp layer is coated with an anion coating, and dry forming is carried out.

The invention relates to an electronic book reader and discloses a handheld electronic book reader. In the invention, a strip-shaped handheld part is positioned on one side of a display part; main components except for a display screen are configured in the handheld part, so the centre of gravity of the electronic book reader deviates to the handheld part; when holding the book reader by one hand, the torque stressed on the hand is smaller, the hand-feel is good and the labor is saved; and the display part is mainly configured with the display screen and can be manufactured very thin. By using a flexible electronic ink screen, the toughness of the reader is improved, by encapsulating the flexible screen via a film, the toughness of the flexible screen is played completely and mechanical intensity of the flexible screen is greatly increased; and anti-fall property is greatly improved, so the reader is lighter and thinner as a whole.

The invention provides a preparation method for a composite type phosphate ester leather fat-liquoring agent of polyurethane containing nonionic structures. P2O5 is effectively dispersed through low-melting-point polyoxypropylene ether at first and then is subjected to compound esterification with the composite polyurethane containing the nonionic structures and high alcohols, and the composite type phosphate ester leather fat-liquoring agent is obtained. The preparation method has the advantages that polyurethane phosphate ester which serves as both a nonionic surfactant and an anionic surfactant is adopted as an emulsifier of the fat-liquoring agent, so that the emulsifying capacity and the permeability of the fat-liquoring agent are improved; meanwhile, the characteristic that a PO bond in the phosphate ester can be subjected to complexation with active groups on leather fibers is used, so that the stability and the combining capacity with chrome tanning leather collagen fibers of emulsion of the fat-liquoring agent are improved.

The present invention relates to a bus duct technology field, and discloses a pouring type waterproof bus duct. The pouring type waterproof bus duct comprises a fixing side plate, a ceramic silicone rubber body is fixedly connected at the inner side of the fixing side plate, and a flame retardant clapboard is fixedly connected inside the fixing side plate. A copper conductor is fixedly connected inside the flame retardant clapboard, penetrates and extends to the outer side of the flame retardant clapboard, one end of the copper conductor is fixedly connected with a fixing joint, and a jack is arranged at one side of the fixing joint. According to the pouring type waterproof bus duct, by the cooperative usage of the fixing joint and a fixing plug, and when the two pouring type waterproof bus ducts need to be connected together, the fixing plug can be plugged in the jack on the fixing joint, and a fixing rod extends in a fixing hole on the fixing plug under the action of a first compression spring, so that the copper conductors in the pouring type waterproof bus ducts can be connected conveniently, the connection is convenient, the time and the labor are saved, and the working efficiency is improved.

The invention discloses a gas-releasing-type composite preservative pasting film. The gas-releasing-type composite preservative pasting film comprises a pasting film body and an adhesive sticker layer, wherein the adhesive sticker layer is arranged on the pasting film body. The pasting film body is of a layer structure and comprises a porous releasing film, a composite preserving coating, a silica gel coating, a macromolecule water absorption layer, an adhesive layer and an isolation layer in sequence from bottom to top, and the adhesive sticker layer comprises an adhesive sticker coating, wherein the adhesive sticker coating is arranged on the isolation layer. Sterilizing gas released by the preservative film has adjustability, the releasing period of the sterilizing gas is long, and the sterilizing gas is not left on the surfaces of food materials.

The invention provides a nitrite sensor which comprises electrode connection wires, an electrode mounting disk, a reference electrode, an auxiliary electrode, a working electrode, a common-mode rejection electrode, an electrode excitation circuit, a control circuit, an electrode signal protection circuit and an electrode signal processing circuit, wherein the common-mode rejection electrode is additionally arranged in the sensor, so that a common-mode signal is generated; the electrode signal processing circuit is used for culling the common-mode signal to obtain a differential-mode signal generated by oxidization of nitrite; the differential-mode signal is amplified to acquire a voltage signal on a required level; finally, the amplified voltage signal is filtered and output. The nitrite sensor provided by the invention can be used for measuring nitrite and physically compensating changes of temperature and conductivity of a solution to be detected and interference of other ions in the solution on the sensor without software calculation, so that the measurement precision and stability are improved, and continuous on-line measurement on the concentration of nitrite in water can be carried out.

The invention discloses a waterproof paint for an automobile. The waterproof paint for the automobile is prepared from the following materials by weights: 18-20 parts of potassium metasilicate, 25-30 parts of nano-silica, 33-35 parts of polyvinyl acetate, 16-20 parts of butadiene styrene rubber emulsion, 22-24 parts of isocyanate, 16-20 parts of dicyclohexyl phthalate, 22-26 parts of dibutyl phthalate, 25-30 parts of propylene glycol esters of fatty acid, 14-18 parts of magnesite cement, 23-26 parts of fatty acid polyglycol ester, 12-14 parts of simethicone, 7-11 parts of triethoxysilane, 6-10 parts of rosin modified phenolic resin, 16-18 parts of iron oxide red, 18-20 parts of sodium silicate, 6-9 parts of polyether glycol, and 17-22 parts of tartaric acid. The waterproof paint for the automobile has an excellent waterproof effect, is strong in adhesive force, and has an effect of corrosion resistance at the same time.

The invention discloses concrete and a preparation method thereof, which relates to the field of building materials. The concrete is prepared from the following raw materials in parts by weight: 68 to78 parts of cement, 172 to 189 parts of gravels, 130 to 140 parts of sand, 10 to 13 parts of coal ash, 1.4 to 3.3 parts of fibers, 0.5 to 1.8 parts of silane waterproof agent, 1.3 to 2.8 parts of water reducing agent, 0.7 to 2.2 parts of expansion agent and 176 to 183 parts of water. The concrete has the advantages of good waterproof effect and good durability. The preparation method comprises the following steps: weighing all components according to a set ratio, uniformly mixing cement, gravels, sand, coal ash and fibers in a drying manner to obtain a first mixture; uniformly mixing silane waterproof agent, water reducing agent, expansion agent and water to obtain a second mixture; and uniformly stirring the first mixture and the second mixture to obtain the concrete. The preparation method of the invention has the advantages of uniformity in concrete mixing, simple preparation steps and easy implementation.

The invention discloses a wear-resistant waterproof fabric which comprises a bottom cloth layer and is characterized by also comprising a waterproof layer and a wear-resistant layer, wherein the waterproof layer is pasted on the upper surface of the bottom cloth layer by an adhesive; the wear-resistant layer is arranged on the upper surface of the waterproof layer; the waterproof layer is a PTFE (polytetrafluoroethylene) film; the wear-resistant layer is made of a nylon material; the thickness of the waterproof layer is 0.2mm; the thickness of the wear-resistant layer is 0.5-0.7mm; the bottom cloth layer is made of a polyester fiber material. By adopting the wear-resistant waterproof fabric disclosed by the invention, the problems that the clothes become heavier in water, bacteria are easily bred, the wear resistance is low and the clothes are easily damaged in the prior art are solved; the wear-resistant waterproof fabric has simple structure and high wear resistance, is long in service life, and prevents the clothes from being affected with damp.

The invention relates to a foundation pit structure and a foundation pit construction method. The foundation pit structure comprises a plurality of supporting plates which are sequentially arranged and attached to the side wall of a foundation pit, a slot opening is horizontally formed in the top end of each supporting plate, a connecting rod wedged into the side wall of the foundation pit is inserted into the slot opening, a connecting port is vertically formed in one end, inserted into the side wall of the foundation pit, of the connecting rod; and the foundation pit structure further comprises supporting piles which is vertically wedged into the side wall of the foundation pit from the ground, and each supporting pile passes the connecting port and is jointly inserted into the connecting rod in the same vertical plane. Through the arrangement, the supporting pile anchors the connecting rod, so that the supporting plates are fixedly attached to the side wall of the foundation pit, and the supporting and protection of the side wall of the foundation pit are achieved. Compared with the prior art, a bottom plate and the supporting rod installed between the bottom plate and a protective plate are reduced, the occupied space of the foundation pit is reduced, the foundation pit structure is suitable for the foundation pit with smaller scale and shallow depth, and the shallow depthalso facilitates the user to wedge the supporting pile, so that the safety of the small-scale foundation pit construction process is improved.

The invention relates to the field of concrete, and particularly discloses anti-freezing concrete and a preparation method thereof. The anti-freezing concrete is composed of the following components in parts by weight: 30 to 35 parts of Portland cement, 15 to 20 parts of water, 32 to 45 parts of sand, 46 to 55 parts of pebbles, 13 to 22 parts of filler, 0.8 to 1.2 parts of a water reducing agent, 3 to 5 parts of anti-crack fibers, 8 to 15 parts of rubber particles, 0.5 to 1 part of a waterproof agent, 0.1 to 0.3 part of an anti-freezing agent and 0.3 to 0.6 part of an air entraining agent, wherein the surface of the concrete is coated with a surface reinforcing agent. The anti-crack fibers in the concrete can improve the crack resistance of the concrete and reduce cracks, so that water permeation is reduced; the rubber particles and the anti-crack fibers can improve the elastic modulus of the concrete, the air entraining agent introduces air holes in the concrete, frost heaving pressure can be buffered, and freeze-thaw damage can be reduced; and the waterproof agent has a waterproof effect, and the anti-permeability is improved, so moisture infiltration is reduced, and the freeze-thaw resistance is improved.

The invention discloses a waterproof and fireproof wear-resistant cloth which comprises a backing cloth layer. The waterproof and fireproof wear-resistant cloth is characterized in that a waterproof layer, a wear-resistant layer and a fireproof layer are further included, the waterproof layer is adhered to the upper surface of the backing cloth layer through an adhesive, the fireproof layer is arranged on the upper surface of the waterproof layer, the wear-resistant layer is arranged on the upper surface of the fireproof layer, the waterproof layer is made of a microporous polyurethane film, the wear-resistant layer is made of nylon materials, the thickness of the waterproof layer is 0.2mm, the fireproof layer is made of CVC flame-retardant fabrics, the thickness of the wear-resistant layer is 0.4mm, and the backing cloth layer is made of polyester fiber materials. The waterproof and fireproof wear-resistant cloth solves the problems that clothes are heavier when being met with water, bacteria can grow easily, meanwhile, the wear-resistant performance and the fireproof performance are poor, and the clothes can be damaged easily in the prior. The waterproof and fireproof wear-resistant cloth is simple in structure, has good wear-resistant performance and a good waterproof effect, prevents the clothes from being affected with damp, and is long in service life.

The invention discloses a waterproof and breathable film and a preparation method thereof. The waterproof and breathable film is provided with a waterproof and wear-resisting layer, a breathable layer, a base material layer and a tough waterproof layer in sequence from top to bottom. The preparation method comprises the following steps: firstly, preparing graphene modified polyurethane paint; then preparing a graphene-SBS (styrene-butadiene-styrene) modified asphalt layer; then expanding the base material layer and coating the upper surface of the base material layer with one layer of adhesive; sticking the breathable layer and coating the upper surface of the breathable layer with one layer of graphene modified polyurethane coating; coating the lower surface of the base material layer with one layer of adhesive and sticking the graphene-SBS modified asphalt layer on the lower surface of the adhesive so as to obtain the waterproof and breathable film. The breathable film disclosed by the invention not only has a relatively good waterproof property, but also has a relatively good breathable property; when the breathable film is applied to clothes, the comfort is increased and a relatively good waterproof effect can be realized.

The invention relates to an efficient, energy-saving and level-A1 fireproof composite thermal insulation material. The thermal insulation material is formed by mixing and stirring sepiolite, fibrous brucite, cement 425, an adhesive, a foaming agent, hydrophobic expanded perlite and polystyrene granules in different weights. The appearance of the thermal insulation material is of dry powder fibers in bulk. After the thermal insulation material is mixed and stirred with water, the thermal insulation material can be directly sprayed on the outer wall, inner wall and roof of a building or between stairs according to certain thickness. The thermal insulation material has the characteristics of thermal insulation, energy conservation, flame resistance, environmental friendliness and water prevention, and is simple and rapid to construct. Thus, the thermal insulation material provided by the invention is suitable for the thermal insulation of various house buildings, so as to achieve the efficient and energy-saving effect.

The invention relates to an anti-sedimentation joint structure of buried heat preservation steel pipes and a construction method of the anti-sedimentation joint structure. The anti-sedimentation joint structure comprises an anti-sedimentation joint connected between the heat preservation steel pipes by flanges, a metal bellows arranged on the anti-sedimentation joint in a sleeving manner, a heat shrinkable sleeve arranged on the metal bellows in a sleeving manner, and glass wool arranged between the anti-sedimentation joint and the metal bellows in a filled manner, wherein the end parts of the metal bellows are positioned on the outer side surfaces of the adjacent heat preservation steel pipes. The anti-sedimentation joint is wrapped with the glass wool, so that the heat preservation function is exerted, and the energy loss is reduced; and the metal bellows has certain rigidity, can prevent the glass wool from being compressed, exerts the function of protecting the glass wool, and further has a waterproof effect. The anti-sedimentation joint structure has the conventional building sedimentation absorption function, can exert the heat preservation function and the waterproof function, reduces the energy loss, prolongs the service life of a product, and improves the building construction quality.

The invention relates to a medical composite dressing. The medical composite dressing comprises a waterproof layer, a breathable layer, an antimicrobial layer, a drug layer and an adhesive layer, and the waterproof layer, the breathable layer, the antimicrobial layer, the drug layer and the adhesive layer are arranged from bottom to top in sequence, wherein a wing sheet part is integrally connected to the edge of the waterproof layer, the wing sheet part is generally semicircular, the antimicrobial layer comprises fabric and nanometer particles distributed in the fabric, the drug layer is constituted by a nanofiber layer and has a honeycomb surface, honeycomb holes are formed in the surface of the honeycomb surface, the surfaces of the honeycomb holes are coated with hydrophobic layers, and the adhesive layer is distributed in a latticed shape. The medical composite dressing is reasonable in structural design, resistant to water and breathable, the antimicrobial effect is good, the drug leaching amount is high, and the replacement is convenient.

The invention discloses a massage belt, comprising a belt body formed by pressing a silica gel material with a hot-melt process, and a control module, wherein an inner ring of the belt body is press-fitted with a first conductive composite layer vertically symmetrically distributed about a central axis, the middle part of the inner ring of the belt body is press-fitted with six annular second conductive composite layers in annular distribution, a heating module and a low frequency pulse module which are connected by the control module simultaneously act, and the heating module can release infrared heat. The materials of the first conductive composite layer and the second conductive composite layers are used in combination with the low-frequency pulse massage module, and double effects of electric pulse stimulation and low-frequency pulse massage on a human skin joint can be achieved; the heating module and the low-frequency pulse module simultaneously act, and on the first conductive composite layer and the second conductive composite layers are used in combination with the low-frequency pulse massage module, a three-in-one effect is realized, and the physiotherapy effect is better.

The invention discloses an automatic assembling technology for an LED filament lamp. All parts of the LED filament lamp pass through corresponding stations, and finally an LED filament lamp finished product is assembled. Due to the fact that an assembling production line in the mode of an assembly line is used in the automatic assembling technology, different assembling processes are processed onall the stations, automatic machine claws are used as the main processing means during the period, manual work serves as the auxiliary means, and therefore the whole assembling efficiency can be effectively improved, assembling time is shortened and assembling error probability is lowered. Meanwhile, a lamp filament and a driving assembly are connected through connectors in the assembling process,and the problems of being high in lamp body reject ratio and high in cost caused by infirm welding between the lamp filament and the driving assembly, long welding time and low assembling efficiencyare reduced. Hence, the automatic assembling technology for the LED filament lamp has the following beneficial effects that (1) difficulties in the assembling process are reduced; (2) the lamp filament and the driving assembly are tightly connected; and (3) the whole assembling efficiency is high.

The invention provides a multi-component triblock fluorosilicone copolymer with a sequence structure. The multi-component triblock fluorosilicone copolymer has extremely low surface energy, and can beused as an electronic protective agent to coat and modify various electronic components such as printed circuit boards, resistors, capacitors, sensors, display screens, touch screens and the like. Therefore, the multi-component triblock fluorosilicone copolymer has a waterproof effect in a humid environment, and the functional damage caused by water is avoided. According to the invention, trithioester is used as an RAFT reagent; a triblock fluorine-silicon copolymer with a sequence structure can be formed; the fluorine-containing hydrophobic and oleophobic coating has an ordered and controllable structure, can generate a surface micro-phase separation behavior in a film forming process, forms a gradient structure, promotes the enrichment of fluorine-containing chain segments on the surface, remarkably improves the surface hydrophobic and oleophobic properties of the material under the condition of low fluorine content, can improve the adhesive force between the coating and a base material, and has the effect of remarkably improving the comprehensive properties of the coating.

The invention provides a sports duct tape, comprising a release agent layer, a waterproof layer, a priming layer, a PE (polyethylene) film layer, a base material layer and an adhesive layer sequentially from one surface to the other surface. The sports duct tape has the advantages of good waterproof effect and anti-sweat performance, can be easily torn into pieces with needed shapes or sizes by users without effort or other tools, and is comfortable as well as easy to use.

The invention discloses an urban road traffic signal indication device, which comprises a connecting sleeve, wherein the top part of the connecting sleeve is connected with a stand column, the top part of the stand column is rotatably connected with a connecting block, one side of the connecting block is connected with a supporting rod, the supporting rod is a hollow rod, the supporting rod is connected with an adjusting rod, a signal lamp holder is installed at the left end of the supporting rod, a connecting ring is arranged at the top part of the supporting rod, signal lamps and illumination lamps are arranged on the signal lamp holder, an outer cover is arranged on the outer side of the signal lamp holder, a groove is formed in the signal lamp holder, an electric push rod is installedin the groove, and the other end of the electric push rod is connected to the outer cover. The urban road traffic signal indication device is novel in structure, facilitates the maintenance and overhaul, can improve the light effect since the illumination lamps are arranged on the signal lamp holder, has a certain waterproof effect and is capable of improving light condensation through extending the outer cover out of the signal lamp holder by means of the electric push rod, is convenient for the driver to observe, and has high practicality.