153results about How to "Play a filling role" patented technology

The invention discloses anti-seepage, anti-freeze-thaw self-compacting concrete and a preparation method thereof. The anti-seepage, anti-freeze-thaw self-compacting concrete comprises the following components in parts by weight: 350-370 parts of cement, 25-45 parts of fly ash, 25-35 parts of modified metakaolin, 30-50 parts of mineral powder, 770-800 parts of medium sand, 810-830 parts of crushedstone, 20-40 parts of silica fume, 170-180 parts of water, 1-3 parts of a water reducing agent, 20-34 parts of an expansion agent, 2-6 parts of an air entraining agent, and 10-20 parts of a fiber composition, wherein the fiber composition is prepared by mixing a modified polyester fiber, a basalt fiber and a polyacrylonitrile fiber in a mass ratio of 1:0.6-0.9:0.3-0.6. The anti-seepage, anti-freeze-thaw self-compacting concrete has the advantages of good workability and fluidity, and excellent anti-seepage performance and anti-freezing performance.

The invention relates to a process for preparing a super-thin high-purity magnesium hydroxide fire retardant by a supergravity-hydrothermal method, which comprises the following steps of: performing precipitation on de-colored and refined aged brine and aqueous alkali in a supergravity reactor; allowing a reaction product to enter a hydrothermal reactor and heating the reaction product; filtering and washing discharged materials to obtain a magnesium hydroxide filter cake; obtaining a magnesium hydroxide product with a moisture content of less than 0.2 percent by two steps of drying; and performing dry-process modification on magnesium hydroxide powder, which is to pour materials into a high-speed stirrer, heat and pour titanate or a silicane modifier for surface treatment. The process fully uses the magnesium resources of the aged brine and is favorable for prolonging the product chain of sea salts and salty lake resources; the waste water of the process is sodium chloride brine which can be recycled, the production process is environmentally-friendly and contributes to the purification of oceans; the organic fire retardant grain is super-thin, is 0.4 to 0.8 mu m wide, high in purity and low in price, has the fire-retardant and filling functions, generates no corrosive or toxic gases in a fire retarding process and is highly environmentally-friendly.

The invention discloses a three-layer co-extrusion high-temperature-resistant glue blocking release film and a production process thereof. The glue blocking release film is formed by combining two outer film bodies and a glue blocking filling film body, the outer film bodies comprise an upper release film body and a lower release film body, and the glue blocking filling film body is arranged between the upper release film body and the lower release film body. Each outer film body is prepared from, by mass, 49-51% of polybutylece terephthalate (PBT), 24-26% of polyamide resin PA66, 5% of compatilizer and 20% of glassfiber reinforced plastics. The glue blocking filling film body is prepared from, by mass, 68-72% of polybutylece terephthalate (PBT), 14-16% of EVA-vinyl acetate copolymer, 9-11% of LDPE low-density polyethylene, 3% of compatilizer and 2% of stabilizer. The thickness of the upper release film body and the thickness of the lower release film body in the high-temperature-resistant release film each account for 30% of the total thickness of the release film. While high temperature resistance of the release film is ensured, the glue blocking performance is improved, the glue output length is 0.9 mm, and the qualification rate of a flexible printed circuit (FPC) can be increased effectively.

The present invention involves new amphiprotic calcium carbonate filler and the preparation method. The raw materials components are: protein water solution which protein content weight percentage is 0. 01% - 8%; mixture which molar ratio of calcii chloridum and carbonas is 0. 8 - 2:1; the weight ratio of protein and carbonate is 0. 01-4:1. On the role of specific matrix, the mixing reaction of calcium salt and carbonates prepares amphiprotic calcium carbonate with different shapes and controllable grain size, the two phases are prepared after reaction: upper liquid phase containing chlorinated salt and lower white calcium carbonate solid phase containing certain matrix. The shape of calcium carbonate includes petal-shaped, spindle, spherical and piece and so on. The amphiprotic calcium carbonate filler can be used for paper making filler to improve the combination between fiber and filler and between fibers, increase the retention ratio of filler and fine fiber in pulp; and increase the filler content and improve the quality of the paper.

The invention relates to a casla solid wood coating construction method. The method comprises the following steps that (1) material treatment is conducted; (2) ground color treatment is conducted; (3) sealing treatment is conducted: two crosses are sprayed on a casla solid wood blank obtained after the step (2) with a seal primer by utilizing high pressure wetting, gun repairing is required for the local position with a large conduit; the seal primer comprises, by mass, 1 part of hypertonic DiDeBao, 0.3-0.5 part of curing agent and 1.2-1.5 parts of diluting agents; (4) sanding treatment is conducted; (5) brush-off treatment is conducted; (6) color repairing and edge blackening treatment are conducted; (7) primer treatment is conducted: a primer is prepared, two crosses are sprayed by adopting high pressure wetting, gun repairing is required for the local position with a large conduit; the primer comprises, by mass, 1 part of net flavor PU transparent primer, 0.5 part of curing agent and 0.9-1.3 parts of diluting agents; (8) secondary sanding treatment is conducted; (9) overhauling treatment is conducted; and (10) finishing coat treatment is conducted. The steps enable a wood substrate to tend to be uniform, have not too many pot holes, and no pinhole is generated.

The invention discloses a thermoplastic polymer composite material containing nano diamond ene, and belongs to the technical field of high polymer materials. The thermoplastic polymer composite material is prepared from, by weight, 90-95 parts of a thermoplastic polymer and 5-10 parts of nano diamond ene. A corresponding preparation method of the thermoplastic polymer composite material comprises the following steps that 1, the thermoplastic polymer and nano diamond ene are mixed in proportion; 2, melt extruding, drawing, cooling, pelletizing and drying are conducted on a double-screw extruder, and then the thermoplastic polymer composite material is obtained. According to the thermoplastic polymer composite material, nano diamond ene is added into the thermoplastic polymer, the heat conductivity coefficient of the polymer material is 5-10 W/(m.K), and the heat conductivity of the overall polymer material is improved; the composite material has a lamellar single crystal structure and is high in strength and good in wear resistance, the strength of the polymer material is improved, and the service life of the polymer material is prolonged; the preparation method of the composite material is simple and low in production cost, and only the double-screw extruder is utilized as the equipment.

The invention belongs to the field of organosilicon rubber coating, relates to the field of metal protective organosilicon rubber coating, and particularly relates to organopolysiloxane coating for aprotective coating layer. The coating comprises, by mass, 100 parts of a low-viscosity siloxane prepolymer, 5-20 parts of rutile titanium dioxide, 3-5 parts of hydrophobic modified fumed silica, 5-10parts of precipitated white carbon black, 10-30 parts of antirust powder, 20-50 parts of wollastonite, 1-10 parts of color paste, 8-15 parts of tetraethoxysilane, 1-6 parts of silicone oil, 5-15 partsof an adhesion promoter and 0.2-2 parts of catalyst. The invention also provides a preparation method. By introducing the organopolysiloxane rubber, the elasticity of the coating layer is fully guaranteed, the cracking phenomenon of the coating layer due to ultraviolet rays and high and low temperature effects in use is avoided, and the coating has higher corrosion resistance, is environment-friendly and pollution-free, and has longer service lifetime.

The present invention relates to a high-performance asphalt composition and a preparation method thereof, wherein the high-performance asphalt composition comprises petroleum asphalt and polyimide powder accounting for 5-15% of the weight of the petroleum asphalt, and the polyimide powder has a particle size of 400-500 mesh, and is self-end-capping trapezoidal polysiloxane modified polyimide powder. According to the present invention, the high-performance asphalt composition has advantages of crack resistance, rutting resistance and flame retardancy, and cannot produce penetration or crackingin a low temperature and humid environment.

The invention provides a preparation method for a high-wear-resistance micro-arc oxide layer of a titanium alloy well-drilling workpiece. The preparation method for the high-wear-resistance micro-arcoxide layer of the titanium alloy well-drilling workpiece comprises the following steps: step 1, carrying out oil removal treatment on the surface of the workpiece; step 2, preparing an electrolyte according to the components with the following concentrations: 16-26g/L of NaH2PO2, 16-28g/L of Na2SiO3 and 15-25g/L of NaAlO2; step 3, adding CE64 and PEG into the electrolyte; step 4, adding nanoscaleSiC powder, Al2O3 powder and graphite powder into the electrolyte in the step 3, and carrying out ultrasonic-assisted dispersion; and step 5, placing the workpiece into the electrolyte, and under anultrasonic condition, preparing a composite film layer on the surface of the workpiece by a direct-current pulse micro-arc oxidization method. The high-wear-resistance micro-arc oxide layer, preparedby the preparation method, of the titanium alloy well-drilling workpiece is high in film layer uniformity, low in surface roughness, and better in corrosion resistance and wear resistance because of being carried with a self-lubricating particle modified surface layer.

The invention discloses a lithium ion battery isolating membrane based on dual-drive self-assembly and a preparation method of the lithium ion battery isolating membrane. The isolating membrane comprises two layers of modified non-woven fabric base membranes and a reinforced coating arranged between the two layers of modified non-woven fabric base membranes, and the modified non-woven fabric basemembranes are prepared by modifying and processing polypropylene non-woven fabric. According to the invention, the polypropylene non-woven fabric is used as a raw material; firstly, methyl methacrylate is used as a monomer, and methyl methacrylate is copolymerized on the surface of acrylic acid, so that the hydrophilicity of the non-woven fabric is improved, and the moisture absorption rate and the water retention rate of the non-woven fabric are further improved; then silicon dioxide is crosslinked and fixed in the non-woven fabric through a silane coupling agent, so that a filling effect isachieved, the equivalent aperture of the non-woven fabric is reduced, and the aperture distribution of the non-woven fabric is more uniform; finally, a layer of honeycomb net structure is formed on the surface of the non-woven fabric intermediate, so that the modified non-woven fabric base membrane is obtained; and the non-woven fabric base membranes have good adsorption capacity and permeation selectivity.

The invention discloses a thick-coating waterborne epoxy finish paint for rail transit vehicles. The thick-coating waterborne epoxy finish paint comprises a paint vehicle and a curing agent. Specifically, the paint vehicle comprises the following raw materials by weight: 45-55 parts of water-based acrylic acid hybrid epoxy resin, 15-20 parts of barium sulfate, 0.2-0.4 part of fumed silica, 2-2.5 parts of a high molecular weight block copolymer dispersant, 19-22 parts of a pigment, 0.5-0.6 part of a polysiloxane defoamer, 0.3-0.5 part of a leveling agent, 2.0-3.0 parts of a thickener and the balance deionized water. The invention also discloses a preparation method of the paint. The overall comprehensive performance of the paint prepared according to the invention can meet the Q/CR 546.4-2016 standard requirements of China State Railway Group Co., Ltd.

The invention discloses a self-lubricating cylinder piston. The surface of the piston is provided with a plasma-sprayed Ni-coated micron graphite and graphene coating with the thickness being 20 microns 30 microns. According to the self-lubricating cylinder piston, the friction coefficient and the wear rate are lowered at the same time through the composite plating, the friction coefficient is low, and compared with a Cr plating, the composite plating is higher in wear resistance. Under various loads, compared with a matrix, the wear rate is lowered by over 50%.

The invention belongs to the technical field of road construction and particularly relates to a road curing agent and a road curing method. The road curing agent contains two parts, namely a water agent and a powder agent, wherein the water agent contains the following components by weight percent: 45%-54% of polyvinyl acetate copolymer, 6%-7% of fatty alcohol-polyoxyethylene ether and 40%-49% ofwater; the powder agent contains the following components by weight percent: 80%-90% of desulfurated ash, 9%-18% of quick lime and 1%-2% of nano-clay. The road curing agent has the advantages of low production cost, high strength after being cured, good water tolerance and slight influence to surrounding environments, can be applied to the curing of sandy soil and macadam and is an environment-friendly road curing material.

The invention provides a preparation method of a bamboo fiber molding composite. The method comprises the steps that after bamboo chips are ground into a loose state, the bamboo chips are soaked intoa nano calcium carbonate solution, a chelating agent is added, flash-explosion treatment is carried out, and modified bamboo fiber crude products are obtained; the residual solution is filtered to obtain bamboo basic structure crude products; the bamboo fiber crude products are soaked into a nano calcium carbonate solution to be ultrasonically treated, and modified bamboo fibers are obtained; theresidual solution is filtered to obtain bamboo basic structure crude products; the bamboo basic structure crude products obtained in the two times are combined, washing and airing are carried out, andbamboo basic structures are obtained; and the bamboo basic structures are soaked into water, a thickening agent is added, stirring and filtering are carried out, modified bamboo basic structures areobtained, the dried modified bamboo fibers and the modified bamboo basic structures are mixed and subjected to mold pressing, and the bamboo fiber molding composite is obtained. The bamboo fiber molding composite is good in uniformity and high in fiber yield, the bamboo basic structures can be effectively utilized, and efficient utilization of bamboo is achieved.

The invention discloses a process method for making a building material from straw fiber and pulp. A formula of the building material comprises the following components in percentage by mass: 60 to 80 percent of plant fiber, 5 to 15 percent of talcum powder, 5 to 15 percent of magnesium oxide and 5 to 15 percent of a modifying agent, wherein the modifying agent is composed of the following components in percentage by mass: 10 percent of sodium dodecyl benzene sulfonate, 30 percent of powdered activated carbon, 40 percent of pulping black liquor, 10 percent of sodium silicate and 10 percent of liquid paraffin. The straw fiber or the pulp serves as raw materials, and by utilizing the reduction characteristic of lignin, a produced building material product does not contain formaldehyde and any colloid, is non-toxic, tasteless, radiation-free, water-proof, damp-proof, fire-proof, sound-proof, thermally insulated, acid-base-resistant, ageing-resistant and moth-proof, and has the advantages of light weight, high strength, low cost and environmental protection.

The invention relates to the technical field of assembled steel tube high-strength concrete columns, and discloses the assembled steel tube high-strength concrete columns and a construction method thereof. The assembled steel tube high-strength concrete columns are formed by sequential connecting of prefabricated standard column joints, and the standard column joints comprise steel tubes, high-strength concrete, stiffening ribs and ordinary concrete, wherein the high-strength concrete is poured in the steel tubes; the stiffening ribs are arranged on the outer side of the steel tubes in a surrounding mode, and the ordinary concrete is poured at the outside of the steel tubes; the high-strength concrete is high-strength concrete with added iron tailings and construction waste; vertical rib groups are fixed to the inner walls of the steel tubes in a welded mode; horizontal end plates are arranged on the outer circumferences of the steel tubes along the section direction in a surrounding mode; through holes are evenly formed in the horizontal end plates at intervals; the stiffening ribs penetrate through the through holes and are arranged in the length directions of the steel tubes in a full-length mode; one ends of the stiffening ribs extend out of the standard column joints, and the other ends of the stiffening ribs are provided with half grouting sleeves which are connected with the stiffening ribs extending out of the adjacent standard column joints. The assembled steel tube high-strength concrete columns are fireproofing, corrosion resisting, high in bearing capacity, and excellent in durability.

The invention relates to a method for preparing a SiC whisker and C-AlPO4 powder synergistic modification mullite coating. A C/SiC composite material is selected as a matrix, a SiC inner coating is prepared by a chemical vapor deposition method, a SiC whisker and C-AlPO4 powder synergistic modification mullite coating precursor is prepared on a SiC inner coating-coated C/SiC composite material bya sol-gel process combined with air spray coating, and the SiC whisker and C-AlPO4 powder synergistic modification mullite coating precursor is sintered to finally obtain the SiC whisker and C-AlPO4 powder synergistic modification mullite coating. The method improves the defects of the coating prepared by a traditional sol-gel process, such as easy cracking, uneven distribution and low bonding strength, can meet the thickness control of a micron-scale coating, has simple preparation process, low preparation cost and high preparation efficiency, can meet many advantages such as large componentand heterogeneous component preparation, is convenient for large-scale industrial application, and has broad development prospects.

The invention discloses a biodegradable drain board, and a preparation method thereof. The biodegradable drain board comprises components such as polystyrene emulsion, modified polylactic acid, and modified wood fiber. The conventional drain boards are prepared from polystyrene; polystyrene is poor in chemical stability, no grease resistance is achieved, biodegradation is difficult to realize, andenvironment pollution is easily caused. According to the preparation method, wood fiber is added, so that toughening effect on polylactic acid and polystyrene is achieved, at the same time, wood fiber is cheap, and is easily biodegraded, and waste recycling is realized. The formula of drain board is improved, the preparation technology is optimized, the obtained biodegradable drain board possesses excellent corrosion resistance, water resistance, mechanical performance, excellent biodegradability, and high practicality, and is friendly to the environment.

The invention provides a preparation method of seawater mixing cemented soil. The preparation method comprises the steps of adding seawater and cement into a mixing tank to be mixed together at first, and then pouring the mixed liquid into a stratum to be mixed with sludge, wherein the using amount of the cement accounts for 10-20% of the amount of the sludge, and the mass ratio of the seawater to the cement is (1-1.2):2; adding superfine silica fume with the fineness of 0.1 micronmeter-0.2micronmeter as a doping material in a mixing process, wherein the mass ratio of the doping material to the cement is 1:(4-5); and with a compound which is formed by mixing sodium bicarbonate and sodium hydrogen phosphate according to the mass ratio of 1:(1-2) as an exciting agent and a corrosion inhibitor, dissolving the compound into the seawater according to that the ratio of mass g to volume ml in the seawater is 0.5-1%, and then feeding the mixture into the mixed sludge. Compared with the prior art, the seawater mixing cemented soil has a comprehensive inhibiting effect on the erosion of sulfates, chlorine salts and magnesium salts in the seawater to the cemented soil, the expansion growth is not more than 10%, the strength of the obtained cemented soil is not only not influenced but also improved by about 50%, and the erosion of the seawater to machines and tools can also be eliminated.

The invention discloses a bituminous mixture for a heavy-load transportation road surface and a preparation technology of the bituminous mixture. The problems that under the current market condition,polytetrafluoroethylene fibers are used for modifying bituminous, but the polytetrafluoroethylene fibers have the defects that the abrasion-resistant property is poor, the hardness is low, the dimensional stability is poor and the like, and the abrasion resistance and the mechanical properties of the bituminous mixture are greatly influenced are solved; and aiming at the problems, nano-silicon dioxide is added to the bituminous, the polytetrafluoroethylene fibers are filled with the nano-silicon dioxide, the thermal conducting property of polytetrafluoroethylene fibers is appropriately improved, the creep resisting property of the polytetrafluoroethylene fibers is improved, large-area strip-shaped abrasive dust is prevented from being generated in the friction process of the bituminous mixture, and the abrasion resistance of the polytetrafluoroethylene fibers is improved. According to the bituminous mixture for the heavy-load transportation road surface and the preparation technology of the bituminous mixture, appropriate proportion is obtained through multiple experiments, the technology is reasonable, the mechanical strength and the abrasion resistance property of the bituminousmixture are effectively improved, the compatibility between the bituminous and components is further improved, and the bituminous mixture is more stable and is high in practicability.