347 results about "Low shrinkage" patented technology

The invention discloses a transparent composition photoresist with low shrinkage and low vacuum deflation. Comprising the following raw materials in percentage by mass: 1-5% of modified polyhedral oligomeric silsesquioxane (POSS), 1-5% of an expanding monomer, 1-5% of modified acrylic resin, 1-5% of epoxy resin, 1-5% of a thiol cross-linking agent, 1-5% of an initiator, 0.1-3% of a curing accelerator, 0.2-0.5% of a flatting agent, 0.1-5% of a silane coupling agent, 0.01-0.2% of an antioxidant and 80-90% of an electronic-grade organic solvent. The invention also provides a preparation method of a cured coating prepared from the transparent composition photoresist with low shrinkage and low vacuum deflation. The product provided by the invention not only can maintain the properties of high hardness, high thermal stability, high planarization ability, high barrier property, low hygroscopicity, low dielectric constant and the like of the transparent composition photoresist coating, but also can enable the transparent composition photoresist coating to have excellent low shrinkage and low outgassing, thereby achieving the purposes of saving energy, reducing emission, reducing cost and improving efficiency; the low shrinkage of the transparent composition photoresist coating also widens the development of the material in the fields of other panel production processes such as OLED (Organic Light Emitting Diode) and the like.

The invention discloses a low-shrinkage high-toughness sprayed concrete material as well as a preparation method and application thereof, and the low-shrinkage high-toughness sprayed concrete material is prepared from the following materials in parts by mass: 400 to 440 parts of cement, 50 to 70 parts of coal ash, 20 to 40 parts of silica fume, 170 to 190 parts of water, 850 to 880 parts of fine aggregate, 770 to 810 parts of coarse aggregate, 30 to 50 parts of accelerator and 3.2 to 6.0 parts of water reducing agent. Hybrid fibers: 30 to 50 parts of steel fibers and 0.9 to 2.7 parts of organic fibers. The low-shrinkage high-toughness sprayed concrete material provided by the invention can ensure high compressive strength and toughness, also has good durability and stability, effectively improves the construction quality of tunnel engineering, and has very excellent market prospects.

The embodiment of the invention provides a UV (ultraviolet) thermal dual-curing adhesive and a preparation method thereof. The UV thermal dual-curing adhesive comprises the following components in percentage by mass: 30-55% of a photocuring prepolymer; 5%-25% of an active diluent monomer; 1%-10% of a photoinitiator; 1%-20% of a thermal initiator; 10%-40% of a filler; 0.5%-5% of a coupling agent; 1%-10% of a thixotropic agent; 1%-10% of pigment; 2%-8% of an auxiliary agent; wherein the photocuring prepolymer comprises epoxy resin. According to the UV thermal dual-curing adhesive and the preparation method thereof provided by the embodiment of the invention, the dual-curing adhesive with low shrinkage and low thermal expansion coefficient is obtained by optimizing the structure of the photocuring prepolymer and matching the components, and the prepared adhesive can be rapidly cured under the irradiation of LED 365nm ultraviolet light, or can be thermally cured under the low-temperature condition of 80 DEG C, so that the UV thermal dual-curing adhesive can be widely applied to the field of ultraviolet curing. The product can resist high and low temperature cycle impact of-50 DEG C to 140 DEG C, and has a good application prospect.

The invention discloses multi-scale toughened concrete and a preparation method thereof, and belongs to the technical field of high leakage, and the multi-scale toughened concrete comprises aluminoferrite cement, a low-shrinkage auxiliary cementing material, a water reducing agent, multi-scale composite fibers, a shrinkage compensation agent, fine aggregate, coarse aggregate and water. A traditional toughening mode is broken through, a physical-chemical composite connection interface is established through a magnetron sputtering metal gradient coating of crude fibers and a laser-induced dendritic crystal structure, a strain hysteresis effect is triggered under an impact load, impact energy is converted into interface phase change energy, and a high-efficiency energy dissipation channel is formed; an amino functional group and free radical cross-linked network is introduced into the fine fibers, and the fibers are endowed with microcosmic dynamic enhancement capability in combination with directional arrangement of the carbon nanotubes, so that the concrete forms cooperative interaction between macroscopic crack bridging and microcosmic crack inhibition, the crack resistance under complex stress is remarkably improved, and microcrack propagation is effectively inhibited.

The invention discloses a polypropylene composite material as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The invention provides a polypropylene composite material. The polypropylene composite material comprises the following components in parts by weight: 40-80 parts of copolymerized PP (polypropylene), 5-25 parts of POE (polyolefin elastomer), 5-25 parts of polyisobutene and 10-30 parts of filler, the number-average molecular weight of the polyisobutene is greater than 600. The POE elastomer, the polyisobutene and the filler are introduced into the copolymerized PP, so that the polypropylene composite material with low sink mark characteristic and good mechanical property can be obtained.

The invention discloses epoxy resin for an optical fiber array and a preparation method thereof, and belongs to the technical field of epoxy resin preparation. The epoxy resin for the optical fiber array consists of the following components in parts by weight: 50-80 parts of epoxy resin, 5-30 parts of modified functional resin, 5-10 parts of a toughening agent, 1-5 parts of an auxiliary agent and 5-20 parts of a composite curing agent. The epoxy resin for the optical fiber array prepared by the method has excellent thermal stability and mechanical strength, also has low shrinkage and curing shrinkage stress, and avoids debonding of optical fibers and an adhesive layer.

The invention discloses a warp-resistant mineral reinforced PC / PBT alloy material with dimensional stability and a preparation method thereof, and relates to the technical field of polymer composite materials. The preparation method comprises the following steps: weighing polycarbonate, polybutylene terephthalate, ureido pyrimidone-polydimethylsiloxane, epoxy polyhedral oligomeric silsesquioxane, polyimide coated halloysite nanotubes, magnesium-aluminum hydrotalcite, perfluoroalkyl modified boron nitride nanosheets, liquid crystal polymer microfibers, modified PVA (Polyvinyl Alcohol) fibers and a silane coupling agent KH550 according to a ratio; the preparation method comprises the following steps: pre-mixing polycarbodiimide and a composite antioxidant to obtain a mixture, mixing, adding into a double-screw extruder, extruding and granulating, drying, carrying out injection molding, and standing at constant temperature and constant humidity to obtain the composite material. The invention has the significance of providing the PBT / PC alloy material with dimensional stability, warping resistance, low shrinkage rate, low hygroscopicity, creep resistance, impact resistance, arc resistance and chemical corrosion resistance for consumer-grade and industrial-grade underwater plastic parts.

The invention belongs to the field of intelligent materials, and discloses a nematic phase liquid crystal elastomer fiber and a method for optimizing the thermal shrinkage performance of the nematic phase liquid crystal elastomer fiber. According to the method, the mass ratio of a cross-linking agent pentaerythritol tetra (3-mercaptopropionate) (PETMP) to a chain extender 2, 2 '-[1, 2-ethanediyl bis (oxygen)] bis (ethanethiol) (EDDET) in an LCE spinning solution is accurately controlled through a wet spinning technology, and drafting and heat treatment processes are combined, so that the LCE fiber with adjustable and controllable heat shrinkage performance and mechanical performance is prepared. The invention aims to overcome the limitations of low response speed, low shrinkage rate, insufficient environmental stability and the like of the existing LCE fiber. The reversible thermal shrinkage rate of the fiber can reach up to 35%, the maximum shrinkage deformation can be completed within 2 seconds at the soonest at the temperature of 80 DEG C, and the maximum tensile strength can reach 170 MPa. And the catalyst has excellent oxidation stability (the mass retention rate is about 97%), and can maintain efficient thermal response in a water environment. And a new way is provided for development of high-performance intelligent materials.

The invention belongs to the technical field of textile material processing, and particularly discloses a preparation method of high-strength low-shrinkage composite yarn for spinning. A preparation method of a high-strength low-shrinkage composite yarn for spinning comprises the following steps: (1) respectively drying ultra-high molecular weight polyethylene and PET polyester, adding maleic anhydride grafted PE, a treated metal organic framework material, boron carbide nanoparticles, cellulose acetate and a silane coupling agent KH550, uniformly mixing, and carrying out melt extrusion to obtain nascent fibers; (2) performing first-stage pre-drafting, second-stage high-temperature tension field drafting and third-stage low-temperature relaxation treatment on the nascent fiber to obtain treated fiber; and (3) dipping the treated fiber in an ethanol solution containing nano SiO, and performing infrared radiation curing to obtain the high-strength low-shrinkage composite yarn for spinning. The composite yarn has good mechanical strength, wear resistance and low contractibility, and the yarn has wide application due to the high breaking strength.

This invention discloses a high-early-strength, low-shrinkage composite silicate cement and its preparation method, comprising: low-shrinkage silicate cement clinker, early-strength component, and gypsum component; the low-shrinkage silicate cement clinker is prepared from calcareous raw materials, siliceous-aluminous raw materials, ferrous raw materials, a first activator, and a mineralizer; its mineral composition includes: C3S 30-50 parts, C2S 20-40 parts, C3A 0.5-5 parts, and C4AF 10-25 parts; its particle size distribution characteristics are D10≥5μm, D90≤45μm, uniformity index of 1.2-1.6, and characteristic particle size of 25-30μm; the early-strength component is prepared from F-type fly ash or C-type fly ash, limestone, magnesium oxide, and a second activator; its mineral composition includes: C 20 A 13 M3S 350-65 parts, C2S 35-50 parts. The cement prepared by this invention not only has high early strength, but also has a small drying shrinkage rate.

The invention relates to the technical field of mine filling materials, and provides a low-shrinkage steel slag powder mine filling cementing material and a preparation method and application thereof.The cementing material is prepared from, by weight, 30-40 parts of steel slag powder, 50-60 parts of mineral powder, 8-15 parts of desulfurized gypsum and 0-5 parts of excitant, the excitant is superfine cement clinker, and the specific surface area is larger than or equal to 600 m < 2 > / kg; through a cascade reaction path of early excitation, expansion compensation and continuous enhancement among the components such as the steel slag powder, the mineral powder and the desulfurized gypsum, the filling cementing material which is high in solid waste mixing amount, low in shrinkage and appropriate in strength and has environmental protection benefits and engineering applicability is realized, pollution and carbon are reduced, cost is reduced and benefits are increased for tailing treatment, and the filling cementing material is suitable for being used as a filling cementing material. And the comprehensive utilization way of the tailings and the metallurgical solid waste is further expanded.

The invention discloses a plastic-free low-shrinkage waterproof oil-proof barrier type modified acrylate emulsion and a preparation method thereof, the plastic-free low-shrinkage waterproof oil-proof barrier type modified acrylate emulsion comprises the following raw materials by mass: 3-12 parts of a nano dispersion, 13-42 parts of a hard monomer, 30-55 parts of a soft monomer, 3-10 parts of a silicon-containing monomer, 4-12 parts of a polyfunctional monomer, 0.1-3 parts of an initiator, and 2-13 parts of a reactive emulsifier; the modified acrylate emulsion is prepared from a nano dispersion, a hard monomer, a soft monomer, a silicon-containing monomer, a polyfunctional monomer, an initiator and a reactive emulsifier through soap-free emulsion polymerization. The plastic-free low-shrinkage waterproof oil-proof barrier emulsion is prepared through soap-free emulsion polymerization, the prepared emulsion is small in particle size, can form a dense film after being coated on the surface of paper, and has good barrier performance on water vapor, oil and the like; according to the plastic-free low-shrinkage waterproof oil-proof barrier emulsion, a polyfunctional structure, especially structures containing-COOH,-OH,-NH2,-NH-C (= O)-NH-and the like, is introduced into a molecular structure, so that the emulsion has good adhesion to paper-based fibers.

The invention discloses a low-shrinkage porous mullite ceramic photocuring additive manufacturing method which comprises the following steps: firstly, mixing a base material containing aluminum and silicon elements with a villiaumite catalytic phase to prepare composite ceramic slurry, preparing a ceramic green body through a photocuring additive forming process, and then preparing the low-shrinkage porous mullite ceramic through a temperature-controlled thermal degreasing and in-situ gas phase method sintering process. The porous mullite ceramic with low shrinkage rate is prepared. By using the villiaumite catalytic phase material, the printability and stability of the ceramic slurry are maintained, the sintering temperature in the heat treatment stage is reduced, the low-size shrinkage performance is obtained, and large-scale efficient additive preparation of the porous mullite ceramic structural part is easy to realize.

The invention relates to a low-shrinkage UV and moisture dual-curing adhesive and a preparation method, and belongs to the field of electronic adhesives, the low-shrinkage UV and moisture dual-curing adhesive comprises the following components by weight: 10-20 parts of urethane acrylate resin, 10-20 parts of a silane-terminated modified urethane acrylate polymer, 5-20 parts of a reaction type acrylate monomer, 1-5 parts of a curing agent, 1-5 parts of a curing agent, and 1-5 parts of a curing agent. The photoinitiator, the moisture scavenger, the catalyst, the filler, the fumed silica and the additive are sequentially arranged from 1 part to 2 parts, 0.5-2 parts, 0.5-1 part, 0.5-1 part, 0.5-1 part, 0.5-2 parts, 0-2 parts and 0.5-1 part. The UV and moisture dual-curing adhesive prepared by the invention has the advantages of extremely low curing shrinkage, high hardness and bonding strength, low thermal expansion coefficient and good storage stability, and is suitable for sealing of consumer electronics or an alignment process in the lens industry.

The invention discloses a preparation process of composite cement based on activation of steel slag micro powder, belongs to the technical field of cement preparation, and aims to solve the technical problem that durability and stability of cement are difficult to further improve in the prior art. A composite cement preparation process based on steel slag micro powder activation comprises the following steps: adding final powder, a polycarboxylate superplasticizer, a retarder and a defoaming agent into a stirring kettle, and uniformly stirring to obtain composite cement; according to the invention, through synergistic combination of the composite activator, the activated steel slag micro powder and the porous silicon-aluminum-calcium sustained-release microspheres, a multi-layer reaction system with early-stage excitation, middle-stage reinforcement and long-term reinforcement effects is constructed; all the components are complementary in time and space to form a compact and continuous skeleton structure, the aperture is refined, the interface is stabilized, and the internal humidity and ion supply are maintained, so that the compressive strength and breaking strength of the concrete are remarkably improved, the shrinkage rate is reduced, and the impermeability and freeze-thaw resistance are improved.

The invention discloses a resin alloy material as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The resin alloy material comprises the following components: PET (Polyethylene Terephthalate) resin, PP (Polypropylene) resin and a compatilizer, the melting point of the PET resin is less than or equal to 200 DEG C; the cantilever beam notch impact strength of the PP resin is greater than or equal to 400J / m; the compatilizer comprises at least two of PP (Polypropylene) grafted maleic anhydride, POE (Polyolefin Elastomer) grafted maleic anhydride, POE grafted GMA (Glycidyl Methacrylate) and SEBS (Styrene-Ethylene-Butylene-Styrene) grafted maleic anhydride. According to the resin alloy material, through compounding of specific components, the mechanical strength of the resin alloy material is guaranteed, meanwhile, the shrinkage rate is reduced, the compatibility problem of PET and PP is solved, rigid-tough balance is achieved, a workpiece prepared from the obtained resin alloy material is not prone to being broken, the strength is high, and the resin alloy material is suitable for being used in the field of household appliance products and has wide application prospects. The method is especially suitable for preparing household appliance shells.

The present invention provides a multi-scale toughening and shrinkage-compensating C80 high-crack-resistant self-compacting concrete and a preparation method thereof. The present invention uses low-shrinkage and crack-resistant composite cement to compensate for the shrinkage of C80 concrete, avoiding the disadvantage that general expansive agents are difficult to function due to the low water-cement ratio design of ordinary C80 concrete, and solving the problem that C80 concrete is prone to shrinkage and cracking. The present invention uses multi-scale hybrid fibers to strengthen toughness and crack resistance, and uses high-strength fine steel fibers, multi-anchor steel fibers, and temperature-shrinkage-induced organic fibers to improve the toughness of C80 concrete and its crack resistance in the heating / cooling stages on a macro scale; and uses CaCO3 and CaSO4 composite whiskers and nano-silica-modified water-based polyurethane to form a uniform three-dimensional toughening network inside the cementitious slurry, thereby improving the tensile strength and toughness of C80 concrete on a micron scale. This allows C80 concrete to have the characteristics of low shrinkage, high toughness, and high crack resistance.

The invention discloses a high-strength degradable polypropylene composite material as well as a preparation method and application of the high-strength degradable polypropylene composite material. Comprising the following components in percentage by weight: 40-60% of polypropylene, 5-15% of an elastomer, 3-10% of polycaprolactone, 10-25% of coffee grounds, 5-20% of polyhydroxyalkanoate, 3-12% of calcium carbonate, 0.3-1.5% of an antioxidant and 1-3% of a silane coupling agent. According to the composite material, by introducing coffee grounds and polyhydroxyalkanoate, a multifunctional composite system with high printability and controllable degradation is constructed, so that the technical bottleneck that the mechanical property and the processing fluidity of a biomass composite material are difficult to synergistically improve is broken through; and triple balance of high toughness, low shrinkage and good printing rheological property is realized, material guarantee is provided for 3D printing products with complex structures, and the 3D printing material is suitable for the fields of automobiles, environment-friendly packaging, 3D printing and the like.

The application discloses a low-shrinkage polyester shrink film for labels, which adopts a three-layer co-extrusion structure and comprises an A-layer surface layer, a B-layer core layer and a C-layer bottom layer; the A-layer and the C-layer are arranged on the two sides of the B-layer and are both made of common PETG film; the B-layer is made of PETG shrink film functional master batch chips, hydroxyethyl cellulose and polysulfone; the total weight of the PETG shrink film functional master batch chips, the hydroxyethyl cellulose and the polysulfone is 100 wt%; the adding amount of the PETG shrink film functional master batch chips is 90 wt% to 95 wt%; the adding amount of the hydroxyethyl cellulose is 1 wt% to 3 wt%; and the rest is the polysulfone. The application further discloses a preparation method of the shrink film. After a small amount of hydroxyethyl cellulose and polysulfone are added into the PETG shrink film functional master batch of the core layer, the shrinkage of the shrink film can be obviously reduced, the shrinkage rate is relatively high, and the shrinkage temperature is relatively low; the improved shrink film is especially suitable for being used as a label with low shrinkage; and in post-processing and use, the improved shrink film is beneficial to improving the product yield.

The invention belongs to the technical field of building material preparation, and particularly relates to a large-volume ultra-high performance concrete block construction method which comprises the following steps: S1, block design and post-cast strip arrangement based on temperature control; s2, a formwork is installed; s3, binding reinforcing steel bars and reserving connecting ends; s4, arranging a thermal insulation layer; s5, concrete pouring; s6, intelligent temperature control maintenance; s7, low-shrinkage post-cast strip pouring is conducted; and S8, removing the template. According to the partitioning construction method, through scientific partitioning design, interface strengthening and intelligent temperature control, the temperature crack risk of the large-size UHPC is remarkably reduced, the structural integrity and durability are improved, and meanwhile the construction efficiency is optimized.

The invention relates to the technical field of forming dies for manufacturing building prefabricated parts, and particularly discloses a low-shrinkage wallboard prefabricating forming die, a production method and a low-shrinkage wall.The low-shrinkage wallboard prefabricating forming die comprises a frame shell and a base, and the base is provided with two face formworks and two side formworks; a pouring cavity with an upward opening is defined by the base, the two face formworks and the two side formworks, an opening is formed in the bottom side of the frame shell, a plurality of long-strip-shaped open holes are formed in the bottom side of the frame shell, and a plurality of strip-shaped elastic air bags are arranged in the frame shell. According to the production method of the low-shrinkage wallboard, the outer wallboard and the inner layer board are poured and formed in sequence, the shrinkage deformation of the outer wallboard is small, the heat preservation effect of the low-shrinkage wallboard is guaranteed, the cutting area of the outer wallboard in the wire arrangement process of the low-shrinkage wallboard is small, and the cracking risk of the repaired position after the outer wallboard is repaired is reduced.

The present invention provides a thermosetting resin composition for electromagnetic wave shielding, a bulk molding compound, and a molded product thereof, which are excellent in fluidity, injection molding property, compression molding property, and in which a molded product excellent in electromagnetic wave shielding property can be obtained. The thermosetting resin composition for electromagnetic wave shielding is characterized by containing a thermosetting resin (A) containing an unsaturated polyester resin (a1) and a vinyl ester resin (a2), a low shrinkage agent (B), a thickening agent (C) containing acrylic resin particles (c1) and magnesium oxide (c2), a thermally conductive filler (D), and a reinforcing material (E).

The invention relates to a double-resin interpenetrating network photo-thermal dual-curing optical fiber bonding and fixing adhesive which comprises the following components in parts by weight: 20-60 parts of epoxy resin, 10-30 parts of acrylate resin, 5-10 parts of a diluent, 0.5-3 parts of an auxiliary agent, 1-10 parts of a cationic photoinitiator, 1-10 parts of a free radical photoinitiator and 50-80 parts of filler. The shrinkage rate of the cured optical fiber bonding and fixing glue is not greater than 0.2%. According to the optical fiber bonding fixing glue provided by the invention, a low-shrinkage technical route for realizing co-growth of a double-resin interpenetrating network by regulating and controlling the curing reaction rate by virtue of photo-thermal dual-curing of the double-resin interpenetrating network and a filler in cooperation with the double-resin interpenetrating network.

The present invention discloses a recyclable resin composition for wind turbine blade composite materials. The recyclable resin composition is primarily composed of two components, A and B. Component A primarily comprises a methyl methacrylate (MMA) prepolymer, comonomers R1 and R2, and a catalyst; component B is an initiator system. The recyclable resin composition exhibits excellent room temperature storage stability, an extremely long operating time, rapid curing at medium and low temperatures, high mechanical properties, and low shrinkage. It can be prepared into a recyclable composite material with excellent temperature resistance through various composite molding processes, particularly for applications in wind turbine blade infusion molding.

This invention discloses a floor repair agent and its preparation method, belonging to the field of building materials technology. The repair agent comprises a modified resin component, a curing agent component, a modified composite functional filler, and composite additives. The modified resin is a composite system of silane coupling agent-modified epoxy resin and terminally hydroxylated polyurethane. The modified composite filler consists of modified nano-silica, passivated quartz sand, and hydroxylated recycled polyurethane rigid foam powder. The composite additives include a compound toughening agent and composite modified polypropylene fibers. During preparation, each component undergoes targeted modification pretreatment, followed by temperature-controlled stirring and step-by-step mixing to obtain the finished product. This invention solves the problems of poor resin compatibility, weak filler bonding force, and easy cracking and debonding in existing repair agents. The product has high bonding strength, low shrinkage, wear resistance, and impact resistance. It can be used stably in environments ranging from -30℃ to 80℃, is environmentally friendly and odorless, and is easy to apply. It combines performance and cost advantages, and is suitable for long-term repair of various floor types and heavy-duty, high- and low-temperature conditions.

The application discloses a kind of resin for flame-retardant optical fiber reinforcing core and preparation method thereof, it is related to epoxy resin technical field.The resin for flame-retardant optical fiber reinforcing core includes the following mass parts components: 80~90 parts bisphenol A epoxy resin, 2~4 parts trimethylolpropane triglycidyl ether, 6~8 parts 4,4'-diphenyl bisphenol diglycidyl ether, 5~7 parts amino boron nitride, 15~18 parts toughening curing agent, 25~35 parts acid anhydride curing agent, 0.2~1 parts accelerator.On the basis of guaranteeing low shrinkage, the mechanical properties, flame-retardant performance of resin for flame-retardant optical fiber reinforcing core are effectively improved.

The invention discloses a high-strength wear-resistant acrylate adhesive and a preparation method thereof, and relates to the technical field of adhesives. The high-strength wear-resistant acrylate adhesive is prepared from the following raw materials in parts by weight: 50 to 60 parts of modified acrylate, 20 to 30 parts of modified elastomer, 5 to 10 parts of plasticizer, 5 to 10 parts of filler, 2 to 6 parts of cross-linking agent, 3 to 5 parts of initiator and 2 to 4 parts of accelerant. By modifying the raw materials of the acrylate adhesive, the prepared adhesive has high strength, wear resistance, low contractibility and self-repairing function, the service life and reliability of the adhesive can be improved, in addition, the adhesive is degradable, the degradable adhesive can be gradually decomposed in the natural environment after being used, the output of garbage is reduced, and the environment pollution is reduced. Moreover, soil and water cannot be polluted, and the ecological environment can be protected.

The utility model discloses a weighing and packing device for low-shrinkage cable insulation materials, which comprises a support frame, a weighing hopper and a storage hopper are sequentially arranged in the support frame from top to bottom, and the weighing hopper is arranged in the storage hopper; the storage hopper is provided with a discharging pipeline, a barrier plate is arranged at an outlet of the discharging pipeline, a disturbance spring is arranged on the barrier plate and connected to the inner wall of the discharging pipeline and the barrier plate, a driving assembly is arranged on the storage hopper and connected with the barrier plate, and the disturbance spring is connected to the inner wall of the discharging pipeline and the barrier plate. The blocking plate is lifted at the outlet of the discharging pipeline for blocking, and the disturbance spring is driven to shake in the discharging pipeline to accelerate discharging; the utility model has the beneficial effects that the baffle plate is controlled to lift at the outlet of the discharge pipeline through the driving component, and the disturbance spring is synchronously triggered to shake in the movement process of the baffle plate by combining the linkage design of the disturbance spring, so as to form continuous disturbance on materials in the pipeline.

The invention discloses a method for multi-dimensional uniform deformation of a micro-nano structure, belongs to the technical field of advanced material processing and manufacturing, and solves the problems of product structure distortion and out-of-control precision of a nano-scale structure caused by low shrinkage rate and non-uniform sintering process densification in the prior art. The method comprises the following steps: uniformly mixing matrix powder, an activator and a morphology stabilizer to obtain a mixture, and carrying out micro-injection molding on the mixture to obtain a pre-amplified micro-nano structure; performing segmented degreasing on the pre-amplified micro-nano structure, performing gradient sintering, and performing hot isostatic pressing treatment to obtain a multi-dimensional uniformly-deformed micro-nano structure; wherein the matrix powder comprises metal powder and / or ceramic powder, the activating agent is eutectic alloy with the melting point smaller than or equal to 200 DEG C, and the morphology stabilizing agent is rare earth metal oxide and / or transition metal oxide. The invention has the advantages of high shrinkage rate, uniform shrinkage and high mechanical strength.

The invention provides a light and thin stitch-bonded shoe insole non-woven fabric as well as a preparation method and application thereof, and relates to the technical field of insole fabrics. The light and thin stitch-bonded shoe insole non-woven fabric is obtained by weaving and shaping 40wt%-60wt% of high-strength DTY (Draw Textured Yarn) and 60wt%-40wt% of high-strength FDY (Fully Drawn Yarn) fibers; the thickness of the insole non-woven fabric ranges from 0.4 mm to 0.8 mm. The high-strength DTY yarns and the high-strength FDY fibers are mixed according to a specific ratio, and are woven and shaped to obtain the insole cloth, the high elasticity of the DTY is complementary with the high strength and low shrinkage of the FDY, and the contradictory performance balance of lightness, thinness and toughness is realized, so that the insole cloth has the advantages that the thickness and weight of the insole cloth are reduced, and the service life of the insole cloth is prolonged. And good wear resistance, tensile strength and rupture strength can still be maintained.