101results about How to "Improve water barrier effect" patented technology

Disclosed is an inorganic medicine, particularly modified montmorillonite, method for preparing the same and use thereof. The said modified montmorillonite means that dioctahedron of natural montmorillonite is not destroyed and basic chemical composition for the same is not changed, and the microstructure stacked from dioctahedron layer is changed to decrease the thickness of stacking layer and to expose and increase the end face charge and the interlayer charge of montmorillonite, thereby resulting in its lower degree of C axis order. The present medical use of montmorillonite is thus significantly strengthened, particularly the reversal treatment effect on chronic atrophic gastritis. Also disclosed are a medicine composition containing modified montmorillonite and the reversal treatment effect of natural montmorillonite on chronic atrophic gastritis.

The invention discloses a three-layer composite waterproof corrugated board and a preparation technology thereof. The preparation technology of the three-layer composite waterproof corrugated board comprises the following steps: 1, preparing corrugated paper layers; 2, treating surface paper and inner paper: immersing the surface paper and inner paper in a reinforcing solution, taking out the surface paper and the inner paper after the surface paper and the inner paper are completely soaked, and drying the surface paper and the inner paper in a 45-55 DEG C environment, wherein the reinforcingsolution is prepared through mixing, by weight, 0.7-1.1 parts of modified bentonite, 0.5-0.9 part of nano-silica, 1.2-1.6 parts of ceramic powder, 5-10 parts of an acrylate emulsion and 1.3-1.6 partsof silica sol; 3, performing gluing and compounding; and 4, coating with a waterproof coating. The three-layer composite waterproof corrugated board of the invention has the advantages of high strength, good bending resistance, and good waterproof and moisture-proof performances; and the preparation technology of the invention has a simple preparation process.

The invention relates to a flooding prevention device for a parking lot. The flooding prevention device comprises an air pump, an air sac, a controller and a first water level sensor. The bottom of the air sac is fixedly arranged on the ground of the parking lot, and the first water level sensor is arranged on the outer side of the air sac and is electrically connected with the controller. When the first water level sensor detects water outside the air sac, the first water level sensor transmits an alarm signal to the controller, the controller controls the air pump to inflate the air sac so that the air sac can uprise, and after the air sac rises, a first closed water wall is formed around a vehicle packed on the parking lot to isolate the vehicle from the water. The flooding prevention device for the parking lot is high in practicality, and can isolate the vehicle from the water by a physical isolation method when in a flood, so that the vehicle is effectively protected from immersing in the flood, and loss is reduced. Besides, by the aid of the air sac serving as an isolation tool, the air sac can be inflated to rise and can wrap the vehicle effectively, so that vehicle paint cannot be damaged while the vehicle can be sufficiently protected.

The invention provides an antibacterial low temperature-resistant heat insulation material. The antibacterial low temperature-resistant heat insulation material comprises, by weight, 10-25 parts of LDPE resin, 5-10 parts of modified melamine resin, 20-30 parts of an antibacterial agent, 15- silicone rubber, 20-30 parts of ethylene propylene rubber, 15-25 parts of butadiene rubber, 10-20 parts of styrene butadiene rubber, 3-5 parts of aromatic oil, 1-3 parts of stearic acid, 2-4 parts of a coupling agent, 5-8 parts of a compatibilizer, 10-15 parts of a foaming agent, 5-20 parts of a filler, 1-2 parts of an antioxidant, 1-3 parts of an antioxidant, 3-7 parts of a plasticizer, 5-10 parts of paprika, 5-10 parts of a mildew inhibiotor, 15-25 parts of high-low temperature resistance carbon black, 3-5 parts of nanometer calcium carbonate, 5-15 parts of glass fibers, 5-15 parts of ceramic fibers, 20-35 parts of a flame retardant, 5-10 parts of methylvinyldimethoxysilane and 10-15 parts of kaolin. The antibacterial low temperature-resistant heat insulation material has the advantages of good heat and cold resistance, excellent heat insulation performance, excellent mechanical properties and strong antibacterial property.

The invention relates to the technical field of coal mine disaster treatment, in particular to a working face collapse column grouting waterproof treatment method. The method comprises the following steps that a working face cut opening is pushed, and pushing is stopped until the safe distance between the working face cut opening and the collapse column is kept; two grouting auxiliary roadways anda plurality of grouting drill nests are tunneled at the positions, corresponding to the collapse column, of a transportation crossheading, and a plurality of corresponding grouting drill nests are tunneled at the positions, corresponding to the collapse column, of an air return crossheading; and inclination grouting drill holes are constructed in the grouting auxiliary roadways and the grouting drill nests in the transportation crossheading, inclination grouting drill holes are constructed in the grouting drill nests in the air return crossheading, and the final hole layers of all the grouting drill holes are controlled to be located in a bottom plate aquifer between the two bottom plate water-resisting layers of the coal seam. The method is not only suitable for preventing the situationthat the non-water-guide collapse column is activated and guides water due to mining influence, but also can reinforce the water-guide collapse column in a multi-layer grouting mode, the water insulation capacity can be improved, and it is ensured that no water damage accident occurs when the coal face is pushed over.

A hole plug, wherein the hole plug is configured so as to withstand a high pulling force and so that a load acting on an engaging claw when the hole plug is separated from a mold is reduced. A leg (3) of a hole plug (1) is provided with an inner tube (11), an outer tube (12) surrounding the inner tube, a rib (15) interconnecting the inner and outer tubes, and an engaging claw (14) provided to theouter peripheral surface of the outer tube and engaged with the peripheral edge of the leg when the leg is inserted in a hole (22) in a body panel (21). The rib is provided to a position corresponding to the position of the engaging claw and is tilted relative to the radial direction of the hole plug when viewed in the direction of insertion of the leg.

The invention belongs to the technical field of water control of mine shafts, and particularly relates to a grouting method of a waterproof curtain of burnt rock covering on a working surface to be mined of a coal mine so as to solve the problems existing in the prior art that slurry between grouting holes is difficult to sufficiently diffuse and overlap, the leakproof effect of a grouting curtainof the burnt rock is poor, and the water shutoff rate is not high. The technical scheme adopted by the invention lies in that the grouting method comprises the steps of (1) performing hole drilling arrangement on the curtain; (2) grouting inner-row curtain holes; and (3) grouting outer-row curtain holes.

The invention relates to a steel wall and a manufacturing method thereof. The steel sheet wall is constructed by connecting plural steel sheets with joints on both ends by the joints, wherein, the sectional steels for cutting off water cover the joints to weld the sectional steels for cutting off water and the steel sheets, and/or between the sectional steels for cutting off water along a length direction in a continuously gapless welding manner. Thereby, the weldable space can be ensured and the welding can be performed by automatic welding, etc, through removing sand and water near the welding position.

The invention provides a capsule gel breaker for high-temperature fracturing, the capsule gel breaker takes an active substance, a dispersing agent and an emulsifying agent as a capsule core, a capsule coating is a capsule coating A or a capsule coating B, and the capsule coating A is prepared by reacting linear polystyrene with polyisopropylacrylamide and p-bis(chloromethyl)benzene; the capsule coating B is prepared from sodium carboxymethyl cellulose, polyvinyl alcohol, polyesteramide, acrylic resin, Tween 80, triethyl citrate, stearic acid, ethanol and water. The capsule gel breaker is uniform in particle and good in smoothness, the selected membrane material has delayed degradation and temperature resistance and water repellency, and the problem that the application range of the capsule gel breaker is limited is solved.

The invention discloses a friction material, a brake pad prepared by the friction material and a preparation method of the brake pad. The preparation method of the brake pad comprises the following steps that (1) preparation of a copper-free metal friction material is performed; (2) hot-pressing molding is performed, wherein the copper-free metal friction material in the step (1) is placed in a hot-pressing mold cavity to be spread and flattened, a cushion layer material is put in the hot-pressing mold cavity to be spread and flattened, a steel backing is placed, hot-pressing molding is performed, and then demolding is performed; (3) a demolded sample undergoes heat treatment, and then is cooled to room temperature; and (4) post-treatment is performed on the sample after being treated in the step (3) to prepare the brake pad. According to the preparation method of the brake pad, the storage, transport cycle and oxidation resistance of the friction material in the brake pad can be obviously improved through rust prevention treatment.

The invention provides a preparation method of barrier hydrophobic paper-based paint. The preparation method comprises the following steps of (1) preparation of modified nanocellulose, wherein hexyltrimethoxysilane is hydrolyzed, an alcohols solvent is prepared, and nanocellulose fiber is added after stirring; (2) preparation of the barrier hydrophobic paper-based paint, wherein the modified nanocellulose is added into an aqueous acrylate emulsion for mechanical blending. The invention discloses the barrier hydrophobic paper-based paint by implementing the method. The barrier hydrophobic paper-based paint comprises the modified nanocellulose and the aqueous acrylate emulsion. The invention also discloses an application method of the paint. The method has the advantages that the environmental protection is achieved, the manufacturing process is simple, the cost is low, and the efficiency is high. The paint has excellent hydrophobic and air-blocking properties, and expands the application of food wrap paper in food packaging. In addition, the application method is simple and convenient, and the application range is wide.

A steel wall and a manufacturing method thereof are provided to improve waterproofing efficiency and construction efficiency, and to cut down construction cost by forming the automatic welding space of the joint part and linearly connecting plural asymmetrical U-shaped steel sheets. A steel sheet wall is constructed(a), and a temporary steel sheet is constructed(b). A closed section is formed and surrounded by the part of the steel sheet wall and the temporary steel sheet(c). Earth or sand is excavated and removed from the closed section(d), and a joint part of the steel sheet wall is washed and cleaned in the closed section(e). An automatic welding machine is set in the closed section(f), and welding is automatically performed(g). The temporary steel sheet is removed after securing waterproofing(h). The waterproof steel wall is constructed by repeating the steps.

The invention discloses a coal face top plate water-rich gravel layer drilling and grouting method. According to the method, ground construction drilling is adopted, vertical downward drilling is constructed from the ground and goes deep to 2-3 m above the gravel layer, a casing pipe is arranged in a drilled hole, and a ring gap between the casing pipe and the drilled hole is filled with cement for fixing; and downward descending advancing type drilling-grouting-hole penetrating cyclic grouting is adopted from the terminal end of the casing pipe, the end hole depth is a bed rock layer, and after the end hole grouting pressure reaches the grouting finishing standard, the hole is sealed through pure cement paste, and grouting is finished. By means of the coal face top plate water-rich gravellayer drilling and grouting method, a coal bed work face top plate can be effectively strengthened, a gravel water containing layer is transformed into a water resisting layer or a weak water containing layer, and threats to coal bed work face recovery due to hole gap water are eliminated.

The invention discloses resistance-reduction slurry for a tube push bench in sandy soil and a preparation method of the resistance-reduction slurry. The resistance-reduction slurry is prepared by, byweight, 100 parts of sodium bentonite, 0.6-0.9 part of sodium carbonate, 0.2-0.35 part of carboxymethyl cellulose, 0.2-0.3 part of potassium humate, 0.1-0.15 part of graphite powder, 10-15 parts of vegetable gelatin and 280-310 parts of water. The resistance-reduction slurry and the preparation method thereof have the advantages that solid content in the resistance-reduction slurry is lowered by mixing the sodium bentonite and the vegetable gelatin, the slurry has a lot of fine-particle clay and is good in hydration effect and low in water loss, and slurry cake formed by the slurry is compactand thin; the lubricating performance of the resistance-reduction slurry is increased by the graphite powder, and the potassium humate has a good diluting effect on the resistance-reduction slurry andcan effectively lower the thickness of the resistance-reduction slurry while the viscosity of the slurry is changed slightly.

The invention discloses a safe outdoor electric power equipment cabinet with high efficiency. The top of the inner chamber of the cabinet body is provided with an air-exhaust box in the form of embedding. The inner part of an air outlet is filled with loose and porous water absorbing material. The inner of an interlayer is insertedly provided with a heating pipe. The inner side of an air inlet of the heating pipe is also provided with a heating rod in the form of embedding. The outer wall of the cabinet body is provided with a temperature inductor. The part of an air inlet window outside the cabinet has a louver structure. By adding the water absorbing material at the air inlet and the air outlet, the water-proof ability of the safe outdoor electric power equipment cabinet with high efficiency is greatly increased, the use safety of electric equipment is guaranteed. By use of the louver-type air inlet window, the efficiency of air inlet is increased and high-efficiency heat dissipation is achieved. In cold weather, frost attached to the cabinet body surface can be timely cleared by an intelligent heating system constituted of the heating rods, the temperature inductor and control chips, so that cabinet body damage due to the large temperature difference between inside and outside is avoided.

The invention discloses a sectional material sliding window. The sectional material sliding window comprises two fixed window bodies and two sliding window bodies, wherein each fixed window body consists of two glass bodies; each sliding window body also consists of two glass bodies; a variable wide groove is formed between each two glass bodies; a buffering cushion is arranged in each variable wide groove; the upper ends of the two fixed window bodies are assembled in a top sectional material frame; the bottom edges of the two fixed window bodies are assembled in a first middle sectional material frame; outer sides of the two fixed window bodies are assembled in a first side surface sectional material frame; inner sides of the two fixed window bodies are assembled in a second middle sectional material frame; the tops of the two sliding window bodies are slidably connected with the first middle sectional material frame; the bottom edges of the two sliding window bodies are assembled in a bottom sectional material frame; outer sides of the two sliding window bodies are assembled in a second side surface sectional material frame; and inner sides of the two sliding window bodies are respectively assembled in end sectional material frames. The sectional material sliding window is simple in structure, long in service life, convenient to mount and detach and convenient to push and pull; the labor is saved; the sealing performance of connection between each sliding window body and a sectional material structure of each side of the sectional material sliding window is high; the stability is high; and the sectional material sliding window has high waterproof, soundproof and heat-insulation effects.

Provide is weak glue cementation water partition similar material, belonging to geotechnical engineering similar material and preparation method. The weak glue cementation water partition similar material takes fine river sand, and dilated lubricating soil as an aggregate, plaster, and solid ceresin wax as a gluing material, cymene oil as additives. The weak glue cementation water partition similar material is prepared from, by weight, 8 parts of fine river sand (pellet level gradation: pellet way & lt; 1.18 mm); 0.9 part of pellet limit 220-325 target quality sodium base dilated lubricating soil; 0.1 part of pellet limit 1000 target plaster; 0.02-0.05 part of fusing spot 58 DEG solid ceresin wax; 1-1.8 parts of stickiness limit 1000 CS cymene oil (seizing sand, soil, plaster gross weight respectively 1/5, 1/6, 1/7, 1/8, 1/9); 1 part of hydrant. At the same time, taking single shaft magnitude and permeation parameter as judging parameters, the method develops the similar material successive proportioning of 8912, 8913, 8914, 8915, can satisfy the successive proportioning requirements of similar material proportioning for single shaft pressure resisting magnitude 8-93 kPa, permeation parameter 2-81 x 10-7 cm/s (scaling gradation 10-6 - 10-7 cm/s ). The similar material successive proportioning side improves the similar material proportioning method for weak glue cementation, low magnitude, and strong water partition, and provides a reference for researching similar material proportioning.

The invention belongs to the field of underground engineering steel sheet pile supporting construction, and particularly relates to a water-stop type corner lug steel sheet pile and a construction method. The water-stop type corner lug steel sheet pile comprises a steel sheet pile body, wherein corner lugs are arranged on the two sides of the steel sheet pile body in the length direction, each corner lug comprises two tenons, and a wedge-shaped groove is defined between every two tenons; the width is gradually increased when the tenons extend outwards; the tenons are inserted into the grooves in a matched mode; and an oval hole is formed in the inner side of the steel sheet pile body in the length direction, a check ring is arranged in the oval hole, and an oval steel ball is placed in the check ring. The steel sheet pile can be used for different geological landforms, can be flexibly combined into various types of pile bodies, and has the remarkable advantages of being easy to construct, high in strength and stability, good in water-stop performance of a supporting structure, small in influence on the periphery and the like.

The invention relates to a production process of an organic insulated solar backplate. The solar backplate produced according to the process comprises a PET substrate, an organic insulation layer and a coating layer. The solar backplate is simple in structure and is convenient to use, electrical insulativity, weather resistance, excellent resistance to water vapor permeability, anti-hydrolysis property and anti-ultraviolet property of the solar backplate can be integrally improved, and the requirement for non-aging after 25-year application is met; and with the arrangement of the organic insulation layer, the cooling performance and the water insulation property of the solar backplate can be substantially improved.