22results about How to "Improve physical performance" patented technology

The utility model discloses a polypropylene frame nanometer thermal insulation board, which comprises a thermal insulation board body, the outer end of the thermal insulation board body is fixedly connected with an MPP reinforced frame, the thermal insulation board body comprises a protective layer, an electromagnetic shielding layer, a thermal insulation layer, a sound absorption damping layer, a fireproof blocking layer and a lining layer, the protective layer is attached to the electromagnetic shielding layer, and the lining layer is attached to the thermal insulation layer. A traditional silica gel frame is replaced by the MPP frame, a multi-layer functional structure is integrated, the comprehensive performance and the application range of the nanometer heat insulation plate are remarkably improved, the fire endurance breaks through 1.5 hours through double protection of the flame-retardant MPP surface layer and the ceramic coating, leap-type improvement is achieved compared with 0.5 hour of the silica gel frame, and the service life of the nanometer heat insulation plate is prolonged. The aerogel core layer is embedded into the MPP reinforcing ribs, so that the heat insulation and bearing capacity structure is optimized, and the physical performance of the heat insulation plate is improved to a great extent.

The utility model relates to the technical field of waste liquid treatment equipment, in particular to an automatic collecting and stirring treatment tank body for waste liquid, which comprises a stirring treatment tank body, the stirring treatment tank body comprises a tank body, a waste liquid collecting module, a stirring module, an automatic control module and a discharge module; a waste liquid inlet and an exhaust port are formed in the top of the tank body; the waste liquid collecting module is connected to the waste liquid inlet and used for automatically collecting and conveying waste liquid into the tank body; the stirring module comprises a driving device, a stirring shaft and stirring blades, the stirring shaft penetrates through the top of the tank body and extends into the tank body, the stirring blades are arranged at the bottom of the stirring shaft, and the driving device is used for driving the stirring shaft to rotate. The liquid level sensor monitors the liquid level in real time; the stirring module adopts a multi-layer adjustable paddle structure, so that sufficient stirring is ensured; the bottom conical structure is matched with the discharging module, and safe discharging is achieved.

This invention discloses the application of *Lactobacillus plantarum* TWK10 in the preparation of health foods or drugs that enhance exercise motivation. *Lactobacillus plantarum* TWK10, with its Latin name *Lactobacillus plantarum*, was deposited on June 27, 2022, at the China General Microbiological Culture Collection Center (CGMCC), located at No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing, with accession number CGMCC NO. 25190. This invention fills a technological gap in the field of probiotics for sports psychology intervention, providing a new strategy for "physiological-psychological" dual-effect intervention in sports nutrition, and can be further applied to weight management.

The utility model belongs to the field of coating production equipment, and particularly relates to a water-based coating performance improving tool which comprises a stirring barrel, and a stirring assembly is arranged in the stirring barrel. The stirring assembly comprises a protection box. According to the utility model, the stirring assembly is arranged, and the turbine blade, the spiral blade and the scraping plate work cooperatively. The turbine blades rotate at the top of the stirring barrel, so that agglomerates above the coating can be effectively scattered, and primary mixing of components is promoted; the spiral blade is arranged in the middle of the transmission rod II, rotates along with the transmission rod, and can drive the coating to circularly flow up and down in the stirring barrel, so that various components are fully mixed in the vertical direction; the scraping plate at the bottom is in sliding fit with the inner wall of the bottom of the stirring barrel, so that pigments, fillers and the like attached to the bottom of the stirring barrel can be cleaned in time and prevented from being accumulated, and uniform mixing of the paint is further ensured, so that the appearance color and physical properties such as hardness and wear resistance of a coating are improved, and the product quality is improved.

The application discloses a surface heat treatment process for improving the strength of a mining metal roof beam and relates to the technical field of surface heat treatment, and comprises the following steps: preparation of a multi-element co-permeation agent; pretreatment of a substrate surface; boxing and sealing; gradient high-temperature chemical co-permeation; integrated cooling and quenching treatment; low-temperature tempering stress relief; post-treatment and detection. The application realizes the balance between high surface hardness and high core toughness by constructing a dense functional layer on the roof beam surface in situ through multi-element co-permeation and gradient heat treatment, and improves the service life of the roof beam under heavy load, wear and acidic corrosion environment in a mine.

The utility model provides a wet forming machine, which relates to the technical field of non-woven fabric forming and comprises a forming machine. A drying machine is fixedly installed at the upper position in the forming machine, a transmission frame is fixedly connected to the middle position of the left side of the forming machine, a motor is fixedly connected to the front end position of the transmission frame, and the rear end position of a rotating shaft of the motor is fixedly connected with the front end position of a U-shaped piece. The inclined flow guide grooves enable wind power to have a direction dividing effect when reaching the surface of a non-woven fabric body, wind power generated by a drying machine is prevented from directly blowing the non-woven fabric, dispersed wind power can act on the non-woven fabric mildly, the risk that the non-woven fabric is broken due to concentrated impact of the wind power is reduced, the quality and yield of products are improved, and the production cost is reduced. The problems that if wind power generated by an existing drying machine directly blows non-woven fabric, the non-woven fabric is prone to breakage, and the quality and the yield of products are reduced are solved.

This utility model relates to a glass cover plate, comprising a first glass substrate and a second glass substrate stacked together. The first glass substrate and the second glass substrate are fastened together by a soft plastic ring. The soft plastic ring includes a left ring portion and a right ring portion. A locking component is provided on the left ring portion, and correspondingly, a fastening component is provided on the right ring portion. The locking component and the fastening component cooperate with each other to fasten and fix the left ring portion and the right ring portion. The front side of the first glass substrate is coated with a titanium diboride coating layer, a tin bronze alloy coating layer and a neodymium oxide coating layer from the inside to the outside. The non-viewing area of ​​the back side of the first glass substrate is coated with a thermochromic ink screen printing layer, a polyester resin layer and a chromium coating layer from the inside to the outside.

The utility model relates to the technical field of color-changing film processing, in particular to a flattening device for color-changing film processing, which comprises a processing table, a heating table is arranged in the middle of the upper end of the processing table, and supporting legs are fixedly mounted at four corners of the lower end of the processing table. Two supporting frames are arranged on the back faces of the two supporting legs located on the left portion and the two supporting legs located on the right portion, supporting plates are jointly and fixedly installed at the upper ends of the two supporting frames adjacent in the front-back direction, and vertical frames are fixedly installed on the front portions and the rear portions of the upper ends of the two supporting plates. According to the flattening device for processing the color-changing film, rapid and stable installation of the winding and unwinding roller is achieved through matching of the convex clamping blocks and the convex clamping grooves, the limiting protruding blocks and the springs, the color-changing film is preheated through the heating table, and the flattening roller capable of adjusting pressure and the horizontal moving mechanism driven by the two-way lead screw are matched, so that film surface defects are accurately eliminated; the flatness, the size precision and the physical performance of the color changing film are improved to guarantee the product quality.

This invention discloses a bio-based thermoplastic polyurethane coating material and a controlled-release fertilizer that are easily and rapidly degradable. The coating material comprises 0.8-2.0 parts of a bio-chain matrix and 0.5-1.5 parts of a chain reinforcing agent; the bio-chain matrix is ​​a mixture of pre-oxidized vegetable oil diol and bio-based polyester diol; the chain reinforcing agent is a mixture of a curing agent, a hardening agent, and a toughening agent. The bio-based thermoplastic polyurethane-coated controlled-release fertilizer comprises fertilizer granules and a bio-based thermoplastic polyurethane coating material sprayed onto the surface of the fertilizer granules; the amount of the bio-based thermoplastic polyurethane coating material sprayed is 0.8-10% of the mass of the fertilizer granules. This invention, through precise control of the coating material formulation, can achieve a combined improvement in the tensile strength and toughness of the bio-based thermoplastic coating material, thereby achieving a superior controlled-release effect and resolving the contradiction between the degradability and controlled-release performance of current bio-based polyurethane coating materials.

This invention relates to a pretreated reinforced recycled aggregate concrete and its preparation method, comprising the following raw materials: 320-360 parts cement; 20-40 parts fly ash; 80-120 parts mineral powder; 585-670 parts manufactured sand; 1050-1200 parts recycled coarse aggregate; 156-172 parts water; and 11-12.3 parts admixtures. After pretreatment, the concrete prepared from the recycled coarse aggregate exhibits significantly improved performance compared to the untreated recycled coarse aggregate. The synergistic effect of multiple pretreatment methods significantly improves the water absorption, crushing index, and apparent density of the raw coarse aggregate. Pretreatment of the recycled coarse aggregate provides enhanced conditions for internal hydration in the recycled concrete and simultaneously improves the surface roughness of the recycled coarse aggregate, thus enhancing the workability and increasing the strength of the concrete.

The present application relates to the technical field of polycarbonate, in particular to a halogen-free flame-retardant polycarbonate composite material and a preparation method thereof.The present application comprises the following steps: step one: polycarbonate particles, modified styrene-butadiene-styrene block copolymer, modified carbon nanotubes, anti-dripping agent and antioxidant are put into a mixer and stirred until uniformly mixed to obtain a composite material; step two: the composite material is put into a twin-screw extruder, melt-blended, cooled and granulated to obtain a halogen-free flame-retardant polycarbonate composite material.The present application has the beneficial effect that the styrene-butadiene-styrene block copolymer of the blend is grafted and modified, and cooperates with the modified carbon nanotubes to effectively enhance the strength and flame-retardant properties of the polycarbonate composite material.

The application belongs to the technical field of road engineering, and particularly relates to a production process of modified emulsified asphalt. The process comprises the following steps: preparation of a soap solution: water is added to a reaction container, heated, stirred after the addition of an emulsifier, an emulsifying aid, and an acid-base regulator to adjust pH, and the soap solution is obtained; modification of asphalt: base asphalt is added to a shearing grinder, heated to 165-220 DEG C, reacted after the addition of an SBS modifier, a compatibilizer, and an aid, and the modified asphalt is obtained; and emulsification of the modified asphalt: the prepared soap solution and the prepared modified asphalt are added to a colloid mill, heated, and emulsified, and the modified emulsified asphalt product is obtained after cooling. The emulsifier composed of a cationic surfactant as the main component, a nonionic surfactant, and a small amount of an anionic surfactant can enhance the emulsification performance of the system, improve the storage stability of the emulsified asphalt, and effectively improve the high and low temperature performance of the emulsified asphalt.

This invention discloses an injection molding die for PVC pipe fittings, belonging to the field of injection molding technology. It includes: a fixed mold base with a first water-cooling plate fixed to one end face; a sliding mold base, parallel to one side of the fixed mold base; a fixed template, installed on the end face of the first water-cooling plate near the sliding mold base; a movable template, fixed to the side of the sliding mold base near the fixed template; two mold cavities, symmetrically arranged in the fixed template; and two core guide units, each installed in one of the mold cavities on the fixed template. In this invention, the fixed template and the movable template can fit tightly together to form two injection molding cavities for the PVC pipe fittings. The core shaft in the main shaft core device can be eccentrically or coaxially distributed with the mold cavity as the shaft rotates, which facilitates rapid filling of the mold with PVC material, shortens the injection cycle, prevents material shortages or incomplete filling due to flow obstruction, and improves product quality.

The application discloses a dicyandiamide modified hypercrosslinked resin and a preparation method and application thereof, and relates to the technical field of hypercrosslinked resin. The preparation method of the dicyandiamide modified hypercrosslinked resin comprises the following steps: adopting a Soxhlet extraction method to elute chloromethyl polystyrene resin until the eluent is clear and colorless, drying to obtain purified resin; mixing the purified resin and a first solvent, uniformly mixing, adding a Lewis acid catalyst, performing a Friedel-Crafts alkylation reaction, washing, drying to obtain hypercrosslinked resin; mixing the hypercrosslinked resin and a second solvent, adding dicyandiamide, performing an amination modification reaction, washing, drying to obtain the dicyandiamide modified hypercrosslinked resin. The dicyandiamide modified hypercrosslinked resin has the advantages of large specific surface area, good thermal stability, strong corrosion resistance, and stronger adsorption to CL-20 in an acidic liquid compared to other commercial resins on the market.

The application discloses a kind of high-performance high-thermal-conductivity PA6 composite materials, preparation method and use, wherein PA6 composite material is by following component is formed according to weight parts: PA6 80-100, modified PPTA fiber 10-16, antioxidant 0.1-0.5 portion, the modified PPTA fiber is by hydroxylated aluminum boride, polyvinyl alcohol is modified to PPTA fiber and is formed.The boron aluminum of the application is hydroxylated, then hydroxylated aluminum boride is grafted on PVA molecular chain, after grafting, it is coated on the surface of PPTA fiber, forms good heat conduction passage, and heat energy can be quickly transferred along heat conduction passage, and this heat conduction passage significantly reduces the interface thermal resistance of composite material.The modified PPTA fiber of the application can significantly reduce the interface thermal resistance of composite material, improve the thermal conductivity and mechanical properties of PA6.

The utility model relates to the technical field of special paper production, and discloses a circulating refrigerating device which comprises a tank body, an air leakage opening is formed in the top of the tank body, a circulating heat exchange assembly is arranged on the outer wall of the upper portion of the tank body, and the circulating heat exchange assembly comprises a plurality of groups of circulating exchange pipes wound on the outer wall of the tank body. An upper circulating water inlet flange is arranged at the inlet end of each group of circulating exchange pipes, an upper circulating water outlet flange is arranged at the outlet end of each group of circulating exchange pipes, a plurality of groups of circulating exchange plates are mounted on the bottom wall of the tank body, and the circulating exchange plates are bent and are hollow; the front end and the side end of the circulation exchange plate are connected with a lower circulation water inlet flange and a lower circulation water outlet flange respectively. Through the arrangement of the circulating heat exchange assembly, the temperature of the pulp in the pulping process can be effectively reduced, so that fibers are protected from being damaged, and the physical performance of paper is improved. Meanwhile, the circulating refrigeration function of the device is beneficial to inhibiting the growth of microorganisms, so that the sanitary condition of the pulp is ensured, and the safety risk in the production process is avoided.

This invention provides a dense honeycomb structure cross-linked sodium hyaluronate gel and its preparation method, comprising the following steps: S1. Preparing a chloride ion solution, adding a cross-linking agent, slowly adding sodium hyaluronate under stirring conditions, adjusting the pH to alkaline, and stirring evenly under vacuum conditions to obtain a mixture; S2. Maintaining vacuum conditions, heating the mixture in a water bath, cutting it to obtain a block gel, cross-linking it in a water bath to obtain a cross-linked sodium hyaluronate gel; S3. Adjusting the pH of the cross-linked sodium hyaluronate gel to neutral, performing a first vortex-shear composite grinding treatment to obtain a homogeneous paste-like gel, dialysis, then a second vortex-shear composite grinding treatment, adding non-cross-linked sodium hyaluronate and PBS solution, performing a third vortex-shear composite grinding treatment, filling, and sterilizing to obtain the dense honeycomb structure cross-linked sodium hyaluronate gel. The dense honeycomb structure cross-linked sodium hyaluronate gel obtained by this invention has smooth injection, strong support, long-lasting effect, and low adverse reaction rate.

The application discloses a kind of narrow row hormone regulation optimization methods and systems of regeneration rice, specifically related to rice cultivation technical field, for solving the yield loss problem caused by the different step of wide and narrow row regeneration bud germination in prior art;By determining the anaerobic index of narrow row rhizosphere soil, when exceeding threshold value, screening ACC deaminase-containing microbial active substance;Secondly, by near infrared spectroscopy analysis regeneration bud absorption characteristics, realize dormancy depth grading;Synchronous tracking ethylene concentration from root system to bud body transmission timing determines inhibition window period;Based on dormancy grading and time window, dynamically allocate gibberellin GA3, cell division factor 6-BA and the compounding ratio of microbial active substance;Finally, in time window, directional spray compound solution to narrow row area;By eliminating rhizosphere ethylene accumulation, accurate matching bud body physiological state and action timing, realize the synchronization of narrow row regeneration bud germination efficiency and wide row.

The application discloses a filament carbon nanotube assembly, a preparation device and a preparation method thereof. The preparation device comprises a growth tube cavity for floating vapor phase deposition growth and an activator releasing structure arranged in the cavity; the growth tube cavity is divided into a continuous injection section, a growth initial section, a growth later section and an output section; the activator releasing structure is arranged in the growth later section and can inject the activator into the atmosphere of the growth later section; and the activator can react with amorphous carbon to remove the amorphous carbon. The preparation device and the preparation method provided by the application inject the activator into the growth later section, and the etching effect of the activator on the amorphous carbon can realize the secondary activation of the catalyst particles floating in the gas phase in the floating vapor phase deposition process, so that the catalyst particles can continue to catalyze the growth of the carbon nanotubes; the length of the carbon nanotubes in the carbon nanotube assembly composed of the carbon nanotubes obtained finally is significantly prolonged; and the physical properties of the obtained carbon nanotube assembly are significantly improved.

The utility model discloses a wear-resistant plastic runway material, relates to plastic runway technical field, including plastic runway main part, antiskid layer and polyurethane thermoplastic layer, plastic runway main part bottom is provided with gravel layer, and concrete layer is provided above gravel layer, and concrete layer upper end is provided with polycarbonate layer, and the polyurethane thermoplastic layer is provided with polyurethane thermoplastic layer. A polycarbonate layer is arranged on the upper end of the base layer, a polysiloxane layer is arranged on the polycarbonate layer, a polyetherimide layer is arranged on the upper end of the polysiloxane layer, a titanium dioxide layer is arranged on the polyetherimide layer, a polyurethane foam plastic layer is arranged on the upper end of the titanium dioxide layer, and an anti-skid layer is arranged on the polyurethane foam plastic layer. And a polyurethane thermoplastic layer is arranged at the upper end of the anti-skid layer. According to the wear-resistant plastic runway material, the problems of high temperature resistance and low use strength of an existing plastic runway can be avoided, meanwhile, the wear resistance of the surface of the plastic runway is improved, the overall service life of the plastic runway is prolonged, and meanwhile, the overall practicability and the use efficiency of the plastic runway are improved.

The present disclosure relates to a high-performance composite board prepared from waste wind power blades and a preparation method thereof. The high-performance composite board contains a large amount of waste wind power blade powder and waste wind power blade degraded glass fiber. The preparation cost of the high-performance composite board can be reduced. The powder prepared from the waste wind power blades and the regenerated glass fiber obtained by the chemical degradation method can be recycled and reused. The resource utilization of the retired wind power blades is realized. The problem of resource utilization of the retired wind power blades is effectively solved. In addition, the coupling effect of the waste wind power blade powder and the waste wind power blade degraded glass fiber with the thermoplastic resin is good. Under the synergistic action of the compatibilizer, wood powder, filler and lubricant and other materials, the mixing and stirring effect can be improved. The waste wind power blade powder and the waste wind power blade degraded glass fiber can be uniformly dispersed in the high-performance composite board. The physical properties of the composite board, such as tensile resistance, bending resistance and compression resistance, can be improved.

The invention belongs to the technical field of biological metabolism engineering and food fermentation, and discloses an outer membrane lipoprotein LpoA mutant, recombinant Escherichia coli, a method and application in fucosyllactose production, the LpoA mutant is obtained by mutating the 919th base C of a wild type LpoA coding gene into T, and the nucleotide sequence of the LpoA mutant is SEQ ID NO.1. The invention further discloses an application of the LpoA mutant in fucosyllactose production. After escherichia coli LpoA is mutated, the escherichia coli LpoA is applied to production of human milk oligosaccharide, and the yield of 2 '-FL and 3-FL is further increased.