55results about How to "Stable physical properties" patented technology

The invention discloses a biodegradable sanitary towel with polylactic acid as a main component. The biodegradable sanitary towel comprises a degradable core body, and the degradable core body comprises a surface layer, an absorption core layer and a bottom layer; the surface layer is a polylactic acid fiber non-woven fabric; the polylactic acid fiber non-woven fabric is a polylactic acid fiber spunlace non-woven fabric, a polylactic acid fiber hot air non-woven fabric or a polylactic acid spunbond non-woven fabric; the absorption core layer comprises an upper layer, a middle layer and a lower layer; the upper layer and the lower layer are made of polylactic acid fiber non-woven fabrics, and the middle layer is a mixture composed of polylactic acid two-component fibers and super absorbent resin. And the bottom layer is a degradable impermeable film which is a PHA modified polylactic acid film. The composite material has natural weak acidity and natural antibacterial activity, can create a weak-acidity antibacterial microenvironment for people, is skin-friendly, environment-friendly and healthy, and is an ideal selected material for disposable hygienic products. The natural antibacterial agent has the functions of natural bacteriostasis, weak acidity and the like, and is biodegradable.

The invention relates to the technical field of novel energy materials, in particular to a photo-thermal driving shape memory type heat storage and temperature regulation phase change material and a preparation method and application thereof, and the photo-thermal driving shape memory type heat storage and temperature regulation phase change material comprises a polyurethane phase change material and a photo-thermal conversion material; the polyurethane phase change material is prepared from polyether type polyol, polyester type polyol, isocyanate and small molecule polyol; wherein the molar ratio of the polyether type polyol to the polyester type polyol is 1: (1 to 1000), and the molecular weight of the polyether type polyol is 10000 to 900000; the photothermal conversion material comprises one or more of carbon-based materials such as graphene, graphene oxide and a carbon nano tube. The phase change material has the advantages of high enthalpy value, high strength, photothermal conversion performance, good flexibility and reversible shape memorability, simple preparation method and low cost, and can be widely used in the fields of artificial muscle fibers, heat storage and temperature regulation intelligent textiles, heat management and the like.

The invention relates to the technical field of aluminum plastic films, and particularly discloses a novel hot-process aluminum plastic film and a preparation method thereof. The novel hot-process aluminum plastic film comprises an outer layer, a middle layer, an inner layer, a bonding layer and an aluminum foil layer which are arranged in sequence, the raw materials of the inner layer comprise matrix resin and acrylic resin; the raw materials of the bonding layer comprise a curing agent and a passivating agent. The invention relates to a preparation method of a novel hot-process aluminum-plastic film, which comprises the following steps: adding acrylic resin master batch into matrix resin master batch, uniformly mixing to obtain an inner-layer raw material, and preparing a composite film with a heat-sealing layer doped with acrylic resin in a three-layer co-extrusion manner, the method comprises the following steps: uniformly stirring and mixing a curing agent and a passivating agent to obtain a treating agent, then selecting an aluminum foil as an aluminum foil layer, coating the treating agent on two surfaces of the aluminum foil layer in a micro-concave coating manner, and finally drying and depositing at 180-230 DEG C to obtain a treated aluminum foil layer; and performing hot-process compounding on the treated aluminum foil layer and the inner layer of the composite film to obtain the novel hot-process aluminum-plastic film.

The invention relates to the technical field of electronic materials, and discloses a multi-layer shielding type insulating sheet, which comprises a shielding layer used for shielding electromagnetic interference and in direct contact with an insulating layer; the insulating layer is used for electric insulation and is tightly connected with the shielding layer and the heat dissipation layer; the heat dissipation layer is used for heat conduction and is arranged on the close side of the insulating layer and the buffer layer; the buffer layer is used for providing mechanical buffer and structural support and is attached to the heat dissipation layer and the surface coating; the surface coating is used for protecting the material surface and arranged on the outer surface of the buffer layer, and the shielding layer is made of one or more of copper foil, aluminum foil and a graphene coating. By adopting the copper foil, the aluminum foil or the graphene coating as the shielding layer, electromagnetic interference from the outside can be effectively shielded, in an experiment, the electromagnetic shielding effectiveness of the insulating sheet can reach 95 dB or above, the insulating sheet particularly shows excellent electromagnetic shielding performance in a high-temperature and high-vibration environment, and stable operation of an internal circuit and equipment is ensured.

The invention discloses an anti-ultraviolet fluoride-free black photovoltaic backboard film and a preparation method thereof, the photovoltaic backboard film comprises a black PET inner layer, a black PET supporting layer and a black PET outer layer, and the preparation raw material of the black PET outer layer comprises an hp-TiO2 / PEA-GO composite material. The hp-TiO2 / PEA-GO composite material is added into the uvioresistant fluoride-free black photovoltaic back plate film, so that the uvioresistant fluoride-free black photovoltaic back plate film has a relatively good uvioresistant effect, can absorb most ultraviolet rays and prevent the ultraviolet rays from penetrating through the photovoltaic back plate film, and the hp-TiO2 / PEA-GO composite material keeps stable chemical properties and physical properties under the irradiation of the ultraviolet rays and cannot be decomposed or discolored.

The invention provides a high-temperature-resistant polyurethane UV light viscosity-reducing adhesive and a preparation method thereof, and the preparation process comprises the following steps: firstly, removing water from polyester glycol or polyether polyol at high temperature, gradually adding isocyanate and a cross-linking agent at a proper temperature, and accelerating the reaction by using a catalyst to control the reaction rate and uniformity; then isocyanate acrylic acid is added to form hanging double bonds, the synthesized polyurethane type UV light viscosity-reducing glue, an anhydrous ethyl acetate solvent, a photoinitiator and an isocyanate cross-linking agent are fully stirred and mixed, and the adhesive tape is prepared through a compression roller. The prepared polyurethane type UV light viscosity-reducing adhesive has excellent flexibility and high elongation at break. After UV treatment, the adhesive tape is low in peel strength and free of residues after being peeled, the heat resistance reaches up to 200 DEG C, and no adhesive residues exist within 30 minutes. The coating is especially suitable for protection of material surfaces in high-temperature scenes, such as electronic components, automobile parts and other industrial applications, and has wide market application value and important economic significance.

The invention relates to the technical field of drag reducer preparation, and in particular to a method for producing a salt-resistant drag reducer for oil well fracturing. S1.1, weighing the following raw materials in parts by weight: 27-32 parts by weight of a modified polymer, 0.6-1.1 parts by weight of a cross-linking agent, 0.1-0.3 parts by weight of an antioxidant, 2-6 parts by weight of an acetate buffer, 0.6-0.8 parts by weight of a surfactant, 0.02-0.04 parts by weight of a benzalkonium chloride biocide, and 0.2-0.4 parts by weight of a bentonite suspending agent; wherein, the modified The polymer is prepared by copolymerization of acrylamide, crotonic acid and acrylic acid phosphonate in a mass ratio of 7:2 to 4:10 to 13; S1.2, adding the above raw materials and continuously stirring to obtain a salt-resistant drag reducer; crotonic acid, acrylic acid phosphonate and acrylamide are used to prepare a modified polymer, and carboxyl and phosphonic acid groups are introduced into the polyacrylamide, thereby enhancing the water solubility of the polymer and, at the same time, improving the coordination ability of the modified polymer with the zirconium ions in the cross-linking agent, thereby improving the salt resistance and drag reduction effect of the modified polymer.

The invention provides an intelligent temperature control grease separator and a use method. The intelligent temperature control grease separator comprises a temperature control assembly, and the temperature control assembly comprises a separation box, a heat conduction plate, a circulation channel, a water outlet pipe, a heating water tank, a circulation water pump, a water inlet pipe, a screw and a liquid temperature sensor. Through the temperature control assembly, the temperature in the separation process can be accurately controlled, the problem that the grease separation effect of a traditional grease separator is unstable in the environment with large temperature change is effectively solved, the separation efficiency and effect are improved, meanwhile, the working states of a spiral heating rod and a circulating water pump are intelligently adjusted, and the separation efficiency is improved. Automatic temperature control is achieved, manual intervention is reduced, and the reliability and stability of equipment are improved; according to the oil-containing wastewater treatment device, through multi-stage separation of oil-containing wastewater, grease and impurities in the wastewater can be effectively removed, the separation effect is improved, meanwhile, due to the arrangement of the air blowing pump and the strip-shaped air blowing box, oil liquid in water can be further separated through blown-out air, and separation is more thorough.

The invention relates to the technical field of rubber, in particular to outer-layer rubber of an aging-resistant rubber dam and a preparation method of the outer-layer rubber, the outer-layer rubber is prepared from the following raw materials in parts by weight: 100 parts of chloroprene rubber (CR), 5 parts of zinc oxide (ZnO), 2.5 parts of an anti-aging agent, an anti-aging agent 4010, an anti-aging agent 4010NA, 2 parts of an accelerant and a combined system of an accelerant NA-22 and an accelerant TT (or DM), according to the anti-aging rubber dam outer layer rubber, the service life of a dam can be remarkably prolonged, and performance reduction and potential safety hazards caused by material aging are reduced. The outer-layer rubber has excellent weather resistance, chemical corrosion resistance and ultraviolet irradiation resistance, and can keep stable physical properties even in an extreme environment, so that safe and stable operation of the dam under various working conditions is ensured.

The invention belongs to the technical field of analytical chemistry, and particularly discloses a magnetic fluorescent gold nanocluster molecularly imprinted polymer and a preparation method and application thereof in sulfadiazine fluorescence detection.The surface of Fe3O4 nanoparticles is coated with a silicon dioxide shell layer, the shell layer is subjected to surface modification, and then the Fe3O4 nanoparticles are combined with gold nanoclusters (AuNCs). On the basis, sulfadiazine (SD) is selected as a template molecule by utilizing a molecular imprinting technology, a mixed type silane coupling agent (APTES) is used as a functional monomer, and the surface of the Fe3O4 (at) SiO2 (at) AuNCs is coated with a molecular imprinting layer, so that the magnetic fluorescent gold nanocluster imprinted polymer Fe3O4 (at) SiO2 (at) AuNCs-MIPs is prepared. By combining a magnetic separation technology, high selectivity of the molecularly imprinted polymer, simplicity, convenience and rapidness and high sensitivity of fluorescence detection, sulfadiazine can be accurately and specifically recognized, and the method can be effectively applied to analysis and detection of sulfadiazine.

The invention provides a spirotetramat polyurethane / polyurea microcapsule suspending agent as well as a preparation method and application thereof, and belongs to the technical field of pesticide preparations. The preparation method comprises the following steps: mixing an oil-phase solution containing spirotetramat raw medicine and polyisocyanate with a water-phase solution containing an emulsifier and a dispersant, carrying out shear emulsification, adding a water-soluble wall material monomer water solution containing polyamine and / or polyol, and carrying out an interfacial polymerization reaction; after the polymerization is finished, sequentially carrying out curing treatment and cooling, then adding an auxiliary agent, and blending to obtain the spirotetramat polyurethane / polyurea microcapsule suspending agent. The spirotetramat microcapsule suspending agent is prepared through an interfacial polymerization method, spirotetramat is coated in a polyurethane or polyurea capsule wall, and the spirotetramat microcapsule suspending agent has the advantages of being high in encapsulation efficiency, good in physical and chemical stability, long in pesticide effect lasting period, safer to non-target organisms (such as bees) and the environment and the like. The preparation method is stable in process, easy for industrial production and excellent in product performance.

This invention discloses a method and system for predicting kidney stone hardness based on cross-modal aligned knowledge distillation, comprising: training a teacher network using multi-channel DECT data, enabling the teacher network to predict stone hardness and extract the physical attribute vector Φ. DECT ;Φ DECT The dimension is d p Each dimension corresponds to a physical attribute that plays a decisive role in hardness prediction; a student network is constructed, which, after receiving a single-channel SECT image, first generates a latent physical attribute vector and then performs hardness prediction based on the latent physical attribute vector; an alignment loss is constructed, which, during the training of the student model, allows the distribution and geometry of to approximate Φ. DECT The SECT image to be predicted is input into the trained student model to predict the hardness of the kidney stone. This invention can transfer rich information from dual-energy CT to a plain CT model to improve the predictive ability of plain CT for kidney stone hardness.

The invention discloses a 125-degree PVC energy storage cable material and a preparation method thereof. The 125-degree PVC energy storage cable material comprises polyvinyl chloride resin, a plasticizer, a stabilizer, a lubricant, a flame retardant, an inorganic filler, a scraping and grinding agent, soybean oil and argil. In order to solve the problems that an irradiation crosslinking low-smoke halogen-free material is long in delivery time, not resistant to scraping, unstable in physical performance and wire diameter and high in production cost, the invention provides the 125-DEG C PVC energy storage cable material and the preparation method, the PVC energy storage cable material guarantees the stable physical performance, improves the weather resistance of the cable material, is more resistant to scraping, and is suitable for industrial production. The preparation method provided by the invention has good processability, does not need irradiation, saves time and production cost, and improves production efficiency.

The utility model discloses a compact vertical rotation high power neutron target and neutron generating system belong to neutron application field. Neutron target body of neutron target is set vertically, and the top of neutron target body is equipped with the pivot, is equipped with first connecting pipe and annular second connecting pipe in the pivot, and the second connecting pipe is located in the periphery of first connecting pipe, and is equipped with first cooling jacket and second cooling jacket along the ring in the neutron target body, and first connecting pipe is communicated with first cooling jacket, and second cooling jacket is communicated with second connecting pipe, and first cooling jacket and second cooling jacket are communicated, and first connecting pipe, first cooling jacket, second cooling jacket, second connecting pipe constitute cooling circuit, and is equipped with cooling working medium in cooling circuit. The shell cavity of neutron generating system is sequentially provided with ion source, isolation grid, extraction electrode, low energy transmission line, accelerator, medium energy transmission line, compact vertical rotation high power neutron target, moderator, collimating body outlet, and the inner wall of shell cavity at neutron target body is equipped with reflector.

The utility model discloses an improved silicon wafer vacuum adsorption device, and relates to the technical field of silicon wafer vacuum adsorption. Comprising a chassis, the top of the chassis is sleeved with a V-shaped rubber ring, a supporting ring is embedded in the top of the chassis, the bottom of the supporting ring is tightly attached to the top of the V-shaped rubber ring, and the top of the supporting ring and the top of the chassis are jointly provided with an adsorption pad. The supporting ring made of glass fiber is more stable in physical property and chemical property, has the advantages of being high in hardness and rigidity and not prone to warping and deformation in the using process, the overall plane precision of the adsorption pad is guaranteed, a silicon wafer can be stably and accurately adsorbed to the adsorption pad, the risk that the silicon wafer falls off and is broken in the machining process is reduced, and the service life of the silicon wafer is prolonged. The processing efficiency and the yield of the silicon wafer are improved, the top of the V-shaped rubber ring is tightly attached to the bottom of the supporting ring, the air tightness of base plate adsorption is guaranteed, the fluff layer can protect the surface of the silicon wafer from being scratched, and meanwhile the silicon wafer can be attached more tightly in the adsorption process.

The present invention discloses a system for controlling and coordinating the unorganized emission of waste gas from a delayed coking coke storage tank. The fully enclosed system of the coke storage tank wraps the coke storage tank, sewage treatment tank, top coke grabbing crane, open-air trestle of the crane, automobile transportation channel and loading hopper in the delayed coking process, including a coke storage tank solar film enclosed system, a ventilation system in the shed, and a dust suppression system for grabbing and unloading coke in the shed; the coke storage tank solar film enclosed system is a membrane structure shed; the dust suppression system for grabbing and unloading coke in the shed includes a dust suppression spray cannon, which is used to spray natural plant deodorizing liquid to coke powder in the shed when grabbing and unloading coke; the waste gas collection system includes an exhaust hood, a resistance balancer, an electric air volume regulating valve, and a waste gas collection pipe network; the waste gas treatment system includes a fan, a cooling tower, a demister, and a spray tower. The present invention solves the problem of unorganized emission of waste gas from delayed coking, has good waste gas control effect, covers a wide area, and does not affect the normal progress of the main production process.

The invention belongs to the technical field of machine learning, and particularly relates to an emulsifier production process temperature control method and system based on machine learning, and the method comprises the steps: obtaining the operation data of an emulsification kettle, and removing the no-load loss to construct a shearing power density sequence; obtaining an embedded vector representing viscosity and heat retardation through the rheological state mapping network; the embedded vector is injected into a gate control circulation unit updating gate, and a temperature prediction sequence is output; calculating a consistency index based on the thermodynamic entropy yield, and combining sensible heat temperature rise power residual error to construct a correction term to rectify the prediction sequence; and inputting the consistency temperature into a model prediction controller to generate a valve instruction. According to the method, deep learning is constrained through a physical mechanism, and the problems of temperature control lag and overshoot of the non-Newtonian fluid caused by shear heat are solved.

The present invention discloses an energy accumulator capsule rubber compound suitable for harsh use conditions and a preparation method thereof, and relates to the technical field of rubber compounds, the energy accumulator capsule rubber compound comprises the following raw materials by weight: 100 parts of a rubber polymer, 60 parts of a reinforcing agent, 3-6 parts of a reinforcing agent, 5-10 parts of a plasticizer, 5-8 parts of an anti-aging agent, 10-15 parts of an active agent, 3-5 parts of an accelerator, and 10-30 parts of white carbon black. 1-3 parts of a peroxide vulcanizing agent and 4-6 parts of graft modified composite bentonite. The preparation method has the advantages that the product use environment adaptability, the market application scene and the use range are improved, the application reliability and safety are improved, excellent tensile strength and elongation at break are provided, the preparation efficiency and the yield of large-specification and special-specification products of the energy accumulator capsules are improved, and the mixing dispersion effect, the later-section forming preparation fluidity and the physical property stability are guaranteed.

The invention discloses a phosphonic acid group modified phenazine negative electrode electrolyte as well as a preparation method and application thereof, and relates to the technical field of flow batteries. The phenazine negative electrode electrolyte has a structure shown in the specification, wherein R, R1, R2, R3, R4, R5 and R6 are respectively one of-H,-OCH3,-OCnH2nCH3,-Me,-F,-Cl,-Br,-I,-CnH2nCH3,-OCnH2nPO3H2 and-CnH2nPO3H2, at least one of R, R1, R2, R3, R4, R5 and R6 is-OCnH2nPO3H2, and n is a positive integer. The phenazine negative electrode electrolyte material disclosed by the invention realizes relatively high solubility, stable chemical properties and physical properties and relatively high battery cycle stability, and is suitable for near-neutral aqueous organic salt cavern flow batteries.

The present invention relates to the field of light transmittance detection technology, specifically to a material light transmittance detection device, including a light source tube and a C-shaped light shielding plate, a light source transmitting seat is slidably provided inside the light source tube, a light source receiving seat is slidably provided on the C-shaped light shielding plate, a borosilicate glass ring is rotatably provided between the light source tube and the C-shaped light shielding plate, and a fabric is provided between the borosilicate glass ring and the C-shaped light shielding plate. The present invention drives the movement of the light source receiving seat by the movement of the light source transmitting seat, the light source emitted by the light source transmitter is received by the light source receiver, the range of fabric detection can be changed with the movement of the light source transmitting seat, greatly improving the detection range and detection flexibility, without the need to perform operations such as cutting, transferring, and detecting the fabric, and at the same time, the inner and outer sides of the borosilicate glass ring are dusted, greatly improving the detection efficiency and detection accuracy.

The invention relates to an oxygen annealing method for a Fe (Se, Te) superconducting thin film, which comprises the following steps of: putting the Fe (Se, Te) thin film epitaxially grown by pulsed laser deposition (PLD) into an annealing cavity, opening a vacuum pump to vacuumize to be less than 1Pa, opening an oxygen valve, continuously introducing oxygen with a specific flow, heating the cavity to reach a specific annealing temperature, keeping the temperature for a specific annealing time, and cooling to the room temperature to obtain the Fe (Se, Te) superconducting thin film. And naturally cooling to the room temperature of 25 DEG C, and taking out the Fe (Se, Te) film. Compared with the prior art, the method has the advantages that the c-axis lattice constant of the annealed Fe (Se, Te) thin film is reduced, the critical transformation temperature Tc is increased, the critical current density Jc is increased, the Jc is increased to 19.60 MA / cm < 2 > under a self-field at 4.2 K after annealing in the oxygen flow of 210 SCCM, and the Jc is increased to 4.27 MA / cm < 2 > under a 9 T magnetic field. The oxygen annealing method is beneficial to removal of interstitial Fe atoms and promotes application of the Fe (Se, Te) thin film in a high-intensity magnetic field.

The invention relates to the technical field of medicines, in particular to a compound as well as a pharmaceutical composition and application thereof. Effective components of the pharmaceutical composition comprise a compound and pharmaceutically acceptable salts thereof, and pharmaceutically acceptable auxiliary materials. The invention further provides application of the compound and the pharmaceutical composition in preparation of drugs for treating neurological and mental diseases. The structure provided by the invention has stronger activity to a Kv7.2 / 7.3 channel, and the number of amino groups which are easy to oxidize is reduced in the structure, so that the physical property is more stable, oxidative deterioration is not easy to occur, the toxicity is greatly reduced, and the structure has a larger therapeutic window, a better therapeutic effect and a good application prospect.

The invention discloses a preparation process of a rock plate with clear granular sensation, and relates to the technical field of rock plate preparation. The preparation method comprises the following specific steps: S1, raw material preparation: transporting pug, mullite, a water-milled material, a green body toughening material, a recycled material and an additive required for producing the rock plate to required positions according to a ratio; S2, ball-milling the powder; S3, spray-drying; S4, mixing the powder, S5, carrying out compression molding, S6, drying a green body, and S7, carrying out firing molding. The preparation method comprises the following steps: S1, raw material preparation: transporting the pug, mullite, the water-milled material, the green body toughening material, the recycled material and the additive required for producing the rock plate to required positions; by increasing the content of mullite, the compressive strength of the rock plate is also correspondingly improved, the integrity of the surface of the rock plate can be kept, the phenomenon of fuzzy granularity caused by abrasion is reduced, and mullite has a lower thermal expansion coefficient and excellent thermal shock stability, so that the compressive strength of the rock plate is improved. The mullite-containing rock plate can still keep stable physical properties in a high-temperature environment, and the clarity of the surface granularity of the rock plate can be kept in a use environment with large temperature change, so that the attraction of the rock plate in the market is improved.

The invention relates to the field of wave-absorbing materials, and particularly discloses ceramic wave-absorbing powder as well as a preparation method and application thereof. The invention discloses ceramic wave-absorbing powder as well as a preparation method and application thereof. The ceramic wave-absorbing powder is prepared from the following raw materials in parts by weight: 60-75 parts of ceramic powder, 50-65 parts of wave-absorbing powder, 5-8 parts of silicon-aluminum composite sol and 0.5-1.3 parts of ceramic hollow microspheres, the wave-absorbing powder is prepared from a modified carbon nano tube, Fe-Si-Al and Fe-Si-Cr according to the mass ratio of (2.95 to 3.16) to (1.68 to 2.62) to (3.12 to 3.29); in addition, the preparation method provided by the invention has the advantage of improving the durability of the packaging structure.

The invention relates to the technical field of water-based anticorrosive coatings, and discloses a water-based anticorrosive coating which comprises the following components: 50-60 parts of modified water-based polyurethane, 10-30 parts of acrylic polyurethane, 10-15 parts of a coalescing agent, 30-35 parts of a defoaming agent, 9-18 parts of a flatting agent, 11-20 parts of ferrotitanium powder and 7-16 parts of an ultraviolet light absorber, and further comprises application of the water-based anticorrosive coating in corrosion prevention of automobiles. Comprising the following steps that firstly, a to-be-sprayed steel plate is taken, oil stains on the surface of the steel plate are cleaned away through alcohol, after the steel plate is wiped dry through absorbent gauze, oxide on the surface is polished and removed through abrasive paper for use; by adding the ferrotitanium powder and the preservative, the coating is good in adhesive force, extremely high in shielding effect and excellent in corrosion resistance, damage to automobile parts caused by high temperature can be reduced through cooperation of the modified waterborne polyurethane and the acrylic polyurethane coating, and the problem that the automobile parts are prone to rusting is solved.

The invention discloses a tea substitute for reducing uric acid and assisting in the treatment of gout, comprising by weight: 55-90 parts of black tea, 12-18 parts of Codonopsis pilosula, 12-18 parts of Smilax glabra, 12-18 parts of water flos floridis, 12-18 parts of Hibiscus mutabilis leaves, 8-12 parts of corn silk, 8-12 parts of dandelion, 8-12 parts of Momordica grosvenori, 5-10 parts of hawthorn, 5-10 parts of yam, 3-8 parts of wolfberry, 3-8 parts of Eucommia ulmoides, and 2-5 parts of Sargassum polysaccharide. The Chinese medicinal ingredients are reasonably matched according to the monarch, minister, assistant and envoy theory, Sargassum polysaccharide has certain viscosity, stability and antioxidant properties, helps to maintain the physical properties and texture stability of the product, and the black tea base is compounded with a variety of Chinese herbal medicines and Sargassum polysaccharide for taking, has good uric acid reduction and inhibitory effects, and can be used for assisting the prevention and treatment of gout.

The invention belongs to the technical field of extruders, and particularly discloses a special polyamide synthesis production device with a material mixing structure. Comprising a mounting base, a fixing shell is fixedly connected to the mounting base, the fixing shell communicates with a conveying shell, the conveying shell communicates with a mold, a mirroring rotating shaft is rotationally connected into the fixing shell, stirring blocks which are evenly distributed are arranged on the rotating shaft, a supporting shell is fixedly connected to the fixing shell, and a sliding shell is slidably connected into the supporting shell; and the sliding shell is communicated with the fixed shell. Through mutual movement of the supporting shell and the sliding shell, the sliding shell detects the weight of molten polyamide in the sliding shell, the mutual movement distance of the fixing sleeve and the sliding barrel is controlled according to detected data, the weight of injected additives is adjusted, the proportions of the molten polyamide and the additives injected into the sliding shell of different reaction kettles are kept consistent, and the production efficiency is improved. And mixing operation is performed through the stirring block, so that the physical properties of polyamide produced by the device are kept stable.

The present invention relates to a polymerizable liquid crystal composition and a display device thereof, and belongs to the field of liquid crystal materials. The polymerizable liquid crystal composition comprises at least one compound having a structure shown in general formula I: at least one compound shown in general formula P: at least one compound shown in general formula II: at least one compound shown in general formula III: and at least one compound shown in general formula M, wherein compound M is selected from compounds represented by general formula M-I and / or M-II: The liquid crystal composition of the present invention has very low rotational viscosity, good phase performance and good low-temperature performance, and can form a lower pretilt angle after UV irradiation, has less RM residue, lower threshold voltage and faster response time, and the formed pretilt angle has long-term stability under high and low temperature conditions, and can meet the requirements of liquid crystal display devices for low power consumption and good display effect.

This application relates to the field of silicone rubber, and more specifically, to a high-performance weather-resistant and anti-fouling silicone rubber for encapsulation / bonding of electronic components and its preparation method. It comprises the following raw materials in weight percentages: 50-65% base compound; 20-30% insulating filler; 5-8% A synergist; 2-5% B synergist; the balance being processing aids; A synergist is a hydrogen-containing silicone resin; B synergist is composed of cage-type polysilsesquioxane containing activating groups, tetravinyltetramethylcyclotetrasilazane, and silicone wax in a weight ratio of 1:(0.5-1):(1-3); and the compound system of synergist and B synergist can bond with the silicone rubber obtained from the base compound and insulating filler to form a dense and stable three-dimensional cross-linked network after curing. This not only possesses superior physical properties but also excellent bonding strength, low shrinkage, weather resistance, and anti-fouling properties, improving the structural stability and long-term reliability of electronic components.