113results about How to "Act as a skeleton support" patented technology

This invention relates to a specific modification material for increasing the rigidity of plastic pipes. The specific modification material is composed of: ultra-fine talcum powder 20-30 parts, toughening agent 10-15 parts, coupling agent 1-2 parts, plasticizer 5-8 parts, dispersant 3-5 parts, and high density polyethylene (HDPE) 50-55 parts. Plastic pipes modified with the specific modification material have rigidity 5-6% higher than that of neat HDPE pipes, thus can solve the problems of easy deformation, large influence to ground smoothness and easy breakage of HDPE pipes. Besides, plastic pipes modified with the specific modification material have improved impact strength and physical properties. Talcum powder can partly replace synthetic resin to reduce the cost.

The invention provides a vacuum plastic-absorbing molding process and device for reclaimed leather skin of an automobile column plaque. Thermoplastic synthetic fibers of a skin-core structure are evenly mixed with animal skin fibers to form a net, and through the spunlace or needle-punching non-weaving process, reclaimed leather mixed with the skin-core type thermoplastic synthetic fibers for the automobile column plaque is obtained; and in the vacuum plastic-absorbing molding procedure, by means of the vacuum plastic-absorbing molding device provided by the invention, multi-station integrated molding of the reclaimed leather skin of the automobile column plaque is achieved through the stations of reclaimed leather roll spreading, precise-temperature-control heating, fixing and vacuum plastic absorbing of the molded skin, recovery of reclaimed leather waste and the like, and the column plaque skin which is excellent in usability and formability is obtained. The vacuum plastic-absorbing molding process is simple, operation is convenient, and practicability is high.

The invention provides a preparation method for a tin-carbon composite negative material. An outer layer of the tin-carbon composite negative material is a composite cladding layer jointly formed by asphalt, resin and tin powder, and an inner layer is the tin-carbon composite negative material which is composed of graphite and has a core-shell structure. In the tin-carbon composite material prepared according to the method, high specific capacity characteristic of tin is maintained, meanwhile, a modification effect on the graphite is played, the overall cyclic stability of the material is improved, the energy density of the negative material of a lithium ion battery is improved, thus, the negative material has higher specific capacity than the carbon negative material commonly used in the lithium ion battery in the current market, and the increasing energy density requirement of various portable electric devices on the battery is met.

The invention discloses a composite porous electrode, a single cell comprising the composite porous electrode, a cell stack and a preparation method of the composite porous electrode. The composite porous electrode comprises a porous electrode body and resin layers formed on the inner walls of pores of the porous electrode body; and through holes which can be used for ensuring electrolyte to flow are arranged in at least part of pores of the porous electrode body. After the resin layers are formed on the inner walls of the pores of the porous electrode body, when the composite porous electrode has electrical conductivity and porous structure, the resin layers take a skeleton supporting effect on the composite porous electrode, the hardness and the modulus of the porous electrode are improved, the composite porous electrode can be controlled to have well interface bonding with a collector plate or a pole plate under the condition of generating a small compression amount when being combined with the collector plate or the pole plate, and a contact resistance between the composite porous electrode and the collector plate or the pole plate is reduced, so that the effects of not only not influencing the process of smoothly carrying out penetration diffusion and oxidation-reduction reaction of electrolyte in the composite porous electrode, but also ensuring the low contact resistance between the composite porous electrode and the collector plate or the pole plate are achieved.

The invention relates to a low-density high-strength andalusite fracturing propping agent and a production method thereof. The raw materials comprise: 65-75% of bauxite raw meal, 2-20% of andalusite, 5-20% of kaolinite, 1-8% of calcium aluminate cement, 3-10% of manganese ore powder. The production method comprises the following steps: weighing raw materials, grinding into fine powder, sieving, well mixing, adding into a rotating granulator for granulation, adding atomized aqueous vapor till the mixture becomes a spherical semifinished product, drying; sintering the semifinished product in a rotary kiln for 6-10 h with a kiln head temperature of 1300-1400 DEG C and a kiln tail temperature of 280-320 DEG C, taking the product out of the kiln to obtain a finished product. The product of theinvention has broken rates of 4.8% and 6.9% under pressures of 52 MPa and 69 MPa respectively, and has strength higher than that of other products of the same kind; the product has bulk density of 1.40-1.60 g/cm3, and apparent density of 2.60-2.85 g/cm3, and the density is lower than industrial standard; the product has high surface fineness, and can effectively reduce cost of petroleum fracturing.

The invention discloses a composite porous electrode, a single cell and cell stack containing the same and a preparation method thereof. The composite porous electrode comprises a porous electrode body and an intensified part distributed in the porous electrode body, wherein the bending resistance of the intensified part is superior to that of the porous electrode body, and the intensified part is penetrated through the porous electrode body along the thickness direction of the porous electrode body. After assembling the porous electrode body and the intensified part having better bending resistance than the porous electrode body to form the composite porous electrode, the composite porous electrode has conductivity and a porous structure, and simultaneously, the rigidity and modulus thereof are also increased. In case of the combination with a collection plate or pole plate, a favorable interfacial combination with the collection plate or pole plate can be achieved by controlling the composite porous electrode to produce a small compression amount, so that the contact resistance in between can be reduced, thereby not affecting the penetration and diffusion of the electrolyte in the composite porous electrode and the smooth implementation of the redox reaction, and ensuring lower contact resistance between the composite porous electrode and the collection plate or pole plate.

The invention relates to a method for a reinforcing rock pillar in a shallow buried tunnel with small spacing in a city, and belongs to the technical field of tunnel construction. The methods comprisethe step that by the arrangement of one or more rows of grouting holes, seamless steel pipes are used as grouting pipes according to the construction sequence of jumping holes at intervals, through the hole grouting to reinforce septum rock pillars, the grouting pipes is used as a supporting skeleton to effectively improve the stability of the septum rock pillars; by the binding of the multi-stage pressure separating expansion mold bag on the grouting pipes, slurry is controlled to spread in the target area, and at the same time, the effects that the uplift and settlement of ground can be controlled and the impact on the ground and the surrounding area of the ground can be reduced are achieved; grouting material based on the rapid solidification type slurry can adjust the slurry gel timeaccording to the real time feedback of the grouting process in the field, the over diffusion of the slurry is prevented, the cost is saved, and the segmented and localized reinforcement of the septumrock pillars can be achieved by the matching with the pressure separating expansion mold bag.

The invention relates to a preparation method and an application method of porous boron nitride nanofiber/polyvinyl alcohol composite hydrogel. The preparation method comprises the following steps: adding porous BNNFs into deionized water to obtain a dispersion liquid; and adding PVA into the dispersion liquid, conducting heating and stirring in a water bath at 90-100 DEG C for 2-4 hours, and naturally cooling the sol obtained after heat preservation to room temperature, thereby obtaining the porous boron nitride nanofiber/polyvinyl alcohol composite hydrogel with favorable self-healing property. The hydrogel obtained by the invention can be retreated by a short-time freeze thawing method, so the mechanical properties of the hydrogel are enhanced, and the hydrogel can be used in the fieldsof biomedicine, wearable flexible electronic devices and the like, and has higher safety usability compared with hydrogel prepared by polymerizing monomolecules via a chemical cross-linking agent.

The invention relates to a fusion cake dry granule mainly prepared from waste glaze and a preparation method thereof. The fusion cake dry granule is prepared from waste glaze powder and a high-aluminum refractory material in a ratio of (0.6-2.5)to1. The fusion cake dry granule mainly prepared from waste glaze is suitable for application for surface decoration of ceramic brick billets; and the decorative layer has the effects of wear resistance and skid resistance. The invention also provides a preparation method of the fusion cake dry granule mainly prepared from waste glaze. By converting the waste glaze into the production raw material, the preparation method is simple, and is low in cost.

The invention relates to pouring slurry for a light board. The pouring slurry is prepared from the following raw materials in parts by weight: 60-120 parts of cement, 70-120 parts of light materials, 2-6 parts of emulsion powder, 5-25 parts of coal ash, 30-50 parts of gypsum powder, 10-25 parts of triangular pyramid cage type glass fiber reinforced plastic particles, 0.05-3.5 parts of sodium carboxymethylcellulose, 0.8-3.0 parts of lignocelluloses, 0.6-2.0 parts of carbon fiber, 0.1-0.5 part of cellulose ether, 2.7-7.8 parts of beta-cyclodextrin, 0.01-10 parts of an early strength agent, 0.1-5 parts of a water reducer and 0.05-4 parts of an air entraining agent. The pouring slurry has the characteristics of light weight, high strength, heat resistance and shock resistance.

The invention provides a plugging agent for plugging cracks, and a plugging method thereof, wherein the plugging agent comprises a first component and a second component, the first component comprisesa first reactive high polymer, a polymerization monomer, a cross-linking agent and an initiator, and the second component comprises insoluble solid particles and a polymer solution. According to theinvention, by using the plugging agent, oil reservoir cracks can be effectively plugged; the plugging agent has high plugging strength and scouring resistance based on the formation of an organic gel-particle three-dimensional network plugging system; and the first component and the second component have good injectivity before injection, so that the plugging agent of the invention has advantagesof good plugging performance and excellent injectivity.

The invention discloses embossment powder for an outer wall, and a preparation method thereof, and relates to the field of coating. The embossment powder for the outer wall comprises the following components in parts by mass: 20 to 25 parts of white cement, 50 to 65 parts of quartz powder, 10 to 20 parts of quartz sand, 0.1 to 0.15 part of a water repellent, 0.2 to 0.5 part of a thixotropic agent, 0.2 to 0.3 part of wood fiber, 1 to 1.5 parts of PVA and 0.3 to 0.5 part of methyl hydroxyethyl cellulose. The embossment powder provided by the invention belongs to a layer material in inorganic embossment, and has the characteristics of environmental friendliness, high whiteness, low alkalinity, high adhesive strength, small drying shrinkage, high water-proof and air-permeable properties and the like. Compared with the coating in the traditional embossment, the embossment powder is high in cost performance, uniform in spot, plump and high in stereoscopic sensation, and has development prospect in the field of outer wall texture effect decoration.

The invention belongs to the field of oil and gas well cementation and oilfield chemistry, and particularly relates to a lost circulation material with soft outside and rigid inside and a preparation method thereof. The lost circulation material is a complex microsphere material which is prepared by taking acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and N-vinyl pyrrolidone as comonomers as a flexible material and taking modified silicon dioxide and/or modified quartz sand as a modified rigid material through a reversed-phase suspension method, and the mass ratio of the acrylamide to the 2-acrylamido-2-methylpropanesulfonic acid to the N-vinyl pyrrolidone is (14-16):(3-2):(3-2). The lost circulation material with soft outside and rigid inside not only has variability, but also has a certain skeleton supporting effect. Along with the increase of the polymer concentration, the water absorption multiple of the material is increased, the deformability is enhanced, gaps with different sizes can be adaptively selected, and effective plugging is formed.

The invention provides a fracturing propping agent and a preparation method thereof, and relates to the field of petroleum and gas exploration materials. The fracturing propping agent is mainly prepared from the following raw materials in percentage by mass: 60-75% of shale, 10-25% of bauxite propping agent wastes and 5-15% of potassium feldspar. By adopting the fracturing propping agent, the technical problems that in the prior art a fracturing propping agent is high in price of raw materials, high in production cost and low in cost performance are solved, and technical effects that the raw material cost is lowered, the production cost is lowered and the cost performance is improved are achieved.

The invention discloses a gypsum board with composite glass fiber veneering felts on surfaces, and relates to decorative boards for buildings. The gypsum board is mainly composed of a gypsum board core layer and the composite glass fiber veneering felts which are attached to the outer sides of the gypsum board core layer, and the composite glass fiber veneering felts comprise following raw materials of, by weight, 35-50 parts of glass fiber chopped wires, 30-45 parts of polyester fibers, and 10-25 parts of wood fibers; and the glass fiber chopped wires have a diameter of 30-35 mu and a lengthof 30-35 mm, the polyester fibers have a diameter of 20-30 mu and a length of 30-35 mm, and the wood fibers have a diameter of 14-20 mu and a length of 20-30 mm. According to the gypsum board with thecomposite glass fiber veneering felts on the surfaces, various fiber materials such as glass fibers, the polyester fibers and the wood fibers to form the composite glass fiber veneering felts with the effects of fire retardant, sound proofing and noise reduction and water proofing and mould proofing; and the composite glass fiber veneering felts are combined with a gypsum board core, or special materials are added into the gypsum board core, so that the effects of the fire retardant, the sound proofing and noise reduction and the water proofing and mould proofing are improved, and the servicelife is prolonged.