229results about How to "Improve anti-aging" patented technology

The invention belongs to the technical field of road engineering materials, and discloses a wide-temperature-range crack pouring adhesive based on rubber modified asphalt and a preparation method thereof.The wide-temperature-range crack pouring adhesive is prepared by taking the rubber modified asphalt as a matrix through a response surface method and adding SBS, basalt fibers and a modifier. The performance of the material is tested through a conventional test, and meanwhile, a test with more characteristics in northeast regions is provided, and the performance of the material is detected through injection depth, viscosity, low-temperature stretching after aging and freeze-thaw cycle stretching. Results show that a test designed by a response surface method has very strong reliability, and the modified heating type crack pouring adhesive added with the basalt fiber can significantly improve the high and low temperature performance of the crack pouring adhesive, and also has good anti-aging performance and freeze-thaw cycle resistance. And the filling depth and the viscosity of the sealant are not obviously lower than those of the same type of sealant.

The invention discloses a preparation method of a flame-retardant anti-aging polyolefin plastic, and belongs to the technical field of polyolefin material processing.The preparation method comprises the steps that a modified anti-aging agent is mixed with a DOPO-based flame retardant modified by introducing isocyanate and epoxy groups, the mixture is added into a polyolefin material, during combustion, carbon formation is promoted by the phosphorus element, and the flame-retardant anti-aging polyolefin plastic is obtained. The flame retardant and nitrogen element synergistically play a flame-retardant role, meanwhile, epoxy groups in the flame retardant and carboxyl of polypropylene are subjected to a ring-opening reaction, the crosslinking degree of the material is enhanced, the modified anti-aging agent can effectively capture free radicals and inhibit oxidative degradation, and the mechanical strength and flame-retardant effect of the material are improved. According to the modification method, the anti-aging, high-temperature-resistant and flame-retardant properties of the polyolefin plastic are remarkably improved, the stability of the polyolefin plastic in high-temperature and severe environments is enhanced, the service life is prolonged, and the mechanical property and the thermal stability of the polyolefin plastic are improved.

The invention discloses a solid waste-based cold-mixed asphalt mixture for preventive maintenance as well as a preparation method and application thereof, and belongs to the technical field of road engineering. The solid waste-based cold-mixed asphalt mixture is prepared from the following components in percentage by mass: 4.7 to 8.6 percent of modified cold-mixed asphalt adhesive, 85.8 to 93.9 percent of aggregate and 1.4 to 5.6 percent of composite filler, the modified cold-mixed asphalt adhesive is prepared from the following components in parts by weight: 86 to 96 parts of emulsified asphalt, 1 to 5 parts of bisphenol A type waterborne epoxy resin emulsion, 0.05 to 1 part of curing agent, 0.01 to 0.05 part of defoaming agent, 1.5 to 8 parts of waterborne polyurethane emulsion and 1 to 3 parts of hydroxypropyl methyl cellulose. The solid-waste-based cold-mixed asphalt mixture prepared by the method shows excellent comprehensive performance in high-temperature rut resistance, water damage resistance, freeze-thaw resistance, skid resistance, volume stability, interlayer shear resistance and the like, promotes reasonable utilization of solid waste resources, and has good economic and environmental benefits.

The invention discloses an impact-resistant packaging material and a preparation method thereof, and relates to the technical field of packaging materials. When the impact-resistant packaging material is prepared, the zinc oxide-loaded porous silicon dioxide microspheres and the phosphorus-silicon synergistic flame retardant react to prepare functionalized porous silicon dioxide microspheres; the preparation method comprises the following steps: reacting 4-[2, 2 ': 6', 2 ''-terpyridyl]-4 '-yl-benzylamine with ethyl acrylate to prepare a terpyridyl diester monomer; the preparation method comprises the following steps: carrying out condensation polymerization on ethylene glycol, a terpyridyl diester monomer and benzophenone-4, 4 '-diethyl diformate to prepare functional polyester; the functionalized polyester and 2-aminoethyl-2-cyanoacetate are subjected to a reaction, and modified polyester is prepared; and carrying out melt blending on the modified polyester, the functionalized porous silicon dioxide microspheres, zinc chloride and 1, 6-dichlorohexane, and carrying out compression molding to obtain the impact-resistant packaging material. The impact-resistant packaging material prepared by the invention has excellent anti-aging, impact-resistant, flame-retardant and antibacterial properties.

The invention discloses a waterproof and corrosion-resistant photoelectric composite cable, and belongs to the technical field of communication cables. The waterproof and corrosion-resistant photoelectric composite cable comprises a cable core composed of an optical unit and an electric unit, aramid yarn, an inner protective layer, a waterproof layer, an anti-corrosion layer and an outer sheath, the optical unit comprises an optical fiber and a protective sleeve outside the optical fiber, and the electric unit comprises a conductor and an insulating layer outside the conductor; the aramid yarn and the cable core are twisted in a spiral mode and wrapped by an inner protection layer in an extruded mode, the inner protection layer is wrapped by a water blocking layer, the water blocking layer is wrapped by an anti-corrosion layer, and the anti-corrosion layer is wrapped by an outer sheath. The inner protective layer is made of a waterproof high-temperature-resistant insulating polyurethane composite material; the outer sheath is made of a flame-retardant corrosion-resistant PUR composite material; the waterproof and corrosion-resistant photoelectric composite cable is simple in structure, has high strength and high toughness, has excellent waterproofness, corrosion resistance, aging resistance, high temperature resistance, wear resistance and flame retardance, and still keeps better use performance and longer service life in harsh environments such as underwater or underground.

The invention belongs to the technical field of biology, and particularly relates to a genetically modified mesenchymal stem cell as well as a preparation method and application thereof. The invention relates to a gene modified mesenchymal stem cell, the gene modified mesenchymal stem cell is a mesenchymal stem cell of an over-expression SIRT6 gene, and the acquisition number of the SIRT6 on NCBI (National Center of Biotechnology Information) is NM001193285. The invention finds that SIRT6 is helpful for delaying the cell senescence process and obviously improving the anti-senescence capability of cells by regulating senescence-related genes and proteins.

The invention relates to the technical field of road materials, in particular to an asphalt raw material for SBS polymer modified asphalt and modified asphalt. The asphalt raw material for the SBS polymer modified asphalt comprises the following components in percentage by mass: 9-16% of saturate; 43%-53% of aromatic component; 22%-28% of colloid; 9%-12% of asphaltene; the penetration of the asphalt raw material for the SBS polymer modified asphalt at 25 DEG C is 63-750.1 mm; the dynamic viscosity at 60 DEG C is less than or equal to 240 Pa.s; the penetration ratio is greater than or equal to 65%; the instability index of the colloid is 0.2-0.4; the weight-average molecular weight of the asphalt raw material for the SBS polymer modified asphalt is 1400 to 2200 g / mol. By optimizing the raw material components of the asphalt, the produced modified asphalt has better high-temperature performance, low-temperature performance, anti-aging performance and storage stability, the production efficiency is improved, and the cost is reduced.

The invention relates to an anti-aging composition, a skin care product and a preparation method of the anti-aging composition and the skin care product. The anti-aging composition is prepared from the following components in parts by weight: 0.05 to 0.20 part of collagen, 0.05 to 0.20 part of elastin, 0.10 to 3.00 parts of water lily flower extract, 0.50 to 2.20 parts of folium mori extract, 0.50 to 2.40 parts of rhizoma dioscoreae extract and 1 to 10 parts of beta cyclodextrin. Compared with the prior art, the water lily extract, the mulberry leaf extract and even elastin have the capability of scavenging free radicals, and the Chinese yam extract has the capability of activating human body to synthesize collagen, so that the anti-aging effect is very remarkable through the synergistic interaction of the water lily extract, the mulberry leaf extract and even elastin; external supplement of collagen is matched with an internal synthesis effect, so that the collagen accumulation speed in the skin is greatly increased, the number of wrinkles is effectively reduced, and the anti-aging effect is improved.

The invention provides nickel-carbon conductive shielding foam. The nickel-carbon conductive shielding foam sequentially comprises a conductive layer, foam, a bonding layer and an isolating layer from top to bottom, the foam comprises 25 to 40 parts of nickel-carbon nanotube-cerium oxide composite powder, 1 to 5 parts of an ionic liquid dispersant, 10 to 25 parts of organic silicone oil, 20 to 40 parts of silicone rubber, 5 to 10 parts of polyfuran, 5 to 10 parts of maleimide, 0.5 to 3 parts of a silane coupling agent, 0.01 to 0.1 part of a platinum catalyst and 0.2 to 1.5 parts of a cross-linking agent. The conductive foam can effectively restrain high-frequency electromagnetic interference generated in modern electronic equipment and ensure normal work of the equipment. A self-repairing system is constructed by adding polyfuran and maleimide. When the foam generates cracks under the action of mechanical stress or thermal cycle in the using process, the self-repairing material can automatically repair a conductive network through a reverse Diels-Alder reaction, and the shielding performance and the conductivity of the material are recovered.

The invention discloses an anti-aging and anti-corrosion coating and a preparation method thereof, and relates to the technical field of coatings. When the anti-aging and anti-corrosion coating is prepared, firstly, tetramethyl tetravinyl cyclotetrasiloxane, n-butyllithium and dimethyl-3-chloropropyl chlorosilane react to obtain modified polysiloxane, then 4-vinylpyridine, methyl methacrylate and n-butyl acrylate are copolymerized and then react with the modified polysiloxane, and then bis (4-chlorphenyl) phosphine is grafted to obtain the anti-aging and anti-corrosion coating. Finally, reacting with p-aminodiphenylamine to obtain modified acrylic resin; secondly, enabling the titanium dioxide nanosheet pretreated by 3-aminopropyltrimethoxysilane to react with ester phthalocyanine, and then hydrolyzing to obtain a modified titanium dioxide nanosheet; finally, mixing the modified acrylic resin, the modified titanium dioxide nanosheet, a solvent, a dispersing agent and a defoaming agent to obtain the anti-aging and anti-corrosion coating. The anti-aging and anti-corrosion coating prepared by the invention has excellent anti-aging, anti-corrosion, flame-retardant and antibacterial properties.

The invention relates to nutrient-rich red yeast rice bran and a preparation method thereof.The preparation method comprises the following steps that after rice bran is subjected to enzyme deactivation and sterilization treatment, the moisture is controlled to be 20%-30%; adding a composite enzymatic hydrolysate into the pretreated rice bran, uniformly stirring, and performing enzymolysis to obtain a semi-solid base material; the temperature of the semi-solid base material is controlled to be 36-40 DEG C, and the pH value is adjusted to be 5.0-5.5; inoculating monascus for culturing, turning over the yeast once every 10-12 hours, and culturing for 5-6 days to obtain a yeast material; spreading and culturing the koji material, and controlling the temperature of the koji material to be 30-35 DEG C; after the culture is completed, drying the yeast material until the moisture is below 10% to obtain the nutrient-rich red yeast rice bran; the monascus rice bran with high content of monacolin K can be obtained through the method, the technological operation is simple, the labor intensity of workers is reduced, the production period is short, and the method is suitable for large-scale application and has remarkable economic benefits and social benefits.

The invention discloses a preparation method of a distributed power generation variable frequency driving cable, and belongs to the technical field of power cables. The prepared cable is composed of a cable core, a filling material, a metal shielding layer, an aluminum-plastic composite layer and an outer sheath layer. Wherein the outer sheath layer is prepared from the following raw materials in parts by weight: 70-90 parts of polypropylene resin, 22-30 parts of ethylene-vinyl acetate copolymer, 15-25 parts of modified magnesium hydroxide and 4-6 parts of lubricant. Polypropylene is used as a matrix, so that the cable is endowed with excellent mechanical property and electrical insulation property; wherein the ethylene-vinyl acetate copolymer can enhance the anti-aging performance of the cable; wherein the modified magnesium hydroxide has good compatibility with a polypropylene matrix, can greatly enhance the flame retardance, smoke suppression, aging resistance and rat-proof performance of the cable, and is stable in performance; therefore, the prepared cable is good in mechanical property, has stable and efficient flame retardance, smoke suppression, aging resistance and rat-proof performance, and has important application value in the technical field of power cables.

The invention discloses a cation modified soft PVC membrane material and a preparation method thereof, and relates to the technical field of high polymer materials. When the cation modified soft PVC membrane material is prepared, pre-modified polyvinyl chloride and an allyl salicylaldehyde Schiff base ligand react to prepare modified polyvinyl chloride; the preparation method comprises the following steps: carrying out a reaction on 5-oxo-2, 3-dihydro-5H-thiazolo [3, 2-a] pyridine-3, 7-dicarboxylic acid and N-(2-ethoxyl) maleimide to prepare a bismaleimide ultraviolet absorbent; reacting the pre-modified zinc oxide with 2-chloromethyl furan to obtain modified zinc oxide; and mixing the modified polyvinyl chloride, the modified zinc oxide, a bismaleimide ultraviolet absorbent, zinc acetate, diisononyl phthalate, epoxidized soybean oil and calcium stearate, plastifying, calendering, cooling and rolling to prepare the cation modified soft PVC membrane material. The cation modified soft PVC membrane material prepared by the invention has excellent antibacterial, anti-aging and self-repairing properties.

The invention provides a preparation method of nickel-carbon conductive shielding foam, which comprises the following steps: S1, mixing carbon nanotubes and cerium oxide in proportion, and adding nano nickel powder to form a suspension; adding a reducing agent to carry out reduction reaction so as to deposit nickel ions on the surfaces of the carbon nanotubes and the cerium oxide particles; s2, mixing the nickel-carbon nanotube-cerium oxide composite powder with an ionic liquid dispersant, mixing organic silicone oil and silicone rubber to serve as a matrix, then adding polyfuran and maleimide, and adding a silane coupling agent to be fully combined; adding the dispersed composite powder into an organic silicon matrix, continuously stirring until the materials are uniformly mixed, then adding a platinum catalyst and a cross-linking agent, pouring the mixture into a mold, and curing to form foam; s3, pasting a conductive layer; S4, setting a bonding layer; and S5, setting an isolation layer. By adopting the nickel-carbon nanotube-cerium oxide composite material, the electromagnetic shielding performance of the foam is greatly improved. The ultra-thin self-repairing function is also realized.

The invention relates to a composite gel for treating skin aging by using PLLA, CMC and hyaluronic acid. The composite gel is prepared from the following raw materials: 300 to 310 mg of PLLA microspheres for injection, 50 mg of CMC, 35 to 40 mg of hyaluronic acid and 5 to 8 ml of normal saline. The invention also relates to a preparation method of the composite gel for treating skin aging by using PLLA, CMC and hyaluronic acid. The PLLA microspheres and the hyaluronic acid are combined for use, respective advantages can be exerted, and the PLLA microspheres can provide lasting stimulation and promote an organism to continuously generate collagen; and hyaluronic acid can immediately improve the moisture degree and plumpness of the skin. The combination of the collagen and the collagen has the effects of integrating multiple effects, enhancing aging resistance and improving skin quality, and fundamentally solves the problem of skin aging caused by loss of collagen.

The invention discloses a preparation method of a silicone rubber cable for an explosion-proof motor, and belongs to the technical field of cables. Wrapping the copper conductor with an inner insulating layer to obtain an insulating wire core; mutually twisting the insulated wire cores to obtain a cable core; the cable core is coated with an outer insulating layer; winding the non-woven fabric outside the insulating layer and filling the filler between the non-woven fabric and the insulating layer; coating the outermost layer with a protective sleeve by adopting an extrusion process; and finally, wrapping the glass fiber tape with a protective sleeve, and weaving a layer of galvanized wires outside the glass fiber tape to obtain the silicone rubber cable. The flame retardant containing nitrogen, phosphorus and fluorine has chemical action with the carbon black and the methyl vinyl silicone rubber, and the three components form a hybrid cross-linked network structure, so that the carbon black and the flame retardant can fully and stably play roles, and the protective jacket is endowed with excellent and stable flame-retardant effect, anti-aging effect, hydrophobic effect and mechanical and physical properties. The protective sleeve and other components of the cable act together, so that the cable is excellent in comprehensive performance and can be used as a cable for an explosion-proof motor.

The invention discloses a puncture-resistant biodegradable film bag and a preparation method thereof. The puncture-resistant biodegradable film bag is prepared from the following raw materials in parts by weight: 50-80 parts of biodegradable polyester, 1-20 parts of a modifier and 10-35 parts of an inorganic filler, wherein the total part number of the three raw materials is 100; the composition further comprises 0.1-5 parts of a cross-linking agent, 0.1-5 parts of an antioxidant and 0.1-1 part of a dispersing agent; the weight-average molecular weight of the puncture-resistant biodegradable material is 100,000-300,000; and the cross-linking agent is at least one of triallyl isocyanurate, trimethylallyl isocyanate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate and triglycidyl tripolyisocyanate. The modifier, the cross-linking agent and the biodegradable polyester have a synergistic effect, and through an electron beam irradiation process, not only can the puncture strength of the film bag be greatly improved, but also the MD tensile strength and the TD tensile strength are also greatly improved.

The utility model relates to the technical field of greening grass planting, in particular to an anti-aging flat insertion type lap joint grass planting lattice structure, which comprises a grass planting lattice main body and is characterized in that the grass planting lattice main body is formed by cross connection and combination of a plurality of grass planting lattice single bodies, each grass planting lattice single body comprises a lattice frame, a base is arranged inside the bottom of each lattice frame, and the base is connected with the grass planting lattice main body. The base is formed by arranging a plurality of reinforcing ribs in a staggered mode, water leakage holes are formed in the junctions of the centers of the reinforcing ribs, and the lattice frame is of a regular hexagon structure. The anti-aging high-density polyethylene connector is simple in structure, is made of modified high-molecular-weight HDPE materials, has excellent anti-aging performance, enables the installation process to be simple and rapid due to the unique flat insertion type lap joint design, greatly saves installation time and labor cost due to the fact that the insertion blocks and the clamping frames can be detached and replaced independently, and improves installation efficiency. The design of flat insertion type lap joint allows the expansion joints to be adjusted according to actual conditions in the installation process so as to adapt to different ground conditions, the lawn and the parking lot are integrated, and the application range is wide.

The invention relates to an intelligent photovoltaic curtain wall which has the function of adjusting light transmission intensity. The surface of the photovoltaic curtain wall is fully covered by the photovoltaic module, the supporting body is installed behind the photovoltaic battery module, and the photovoltaic module is fixed on the supporting body through the module fastener. Air hole channels are arranged among the photovoltaic modules to adjust temperature, and air holes can be connected with external constant-temperature systems such as a central air conditioner, so that the photovoltaic curtain wall has good constant-temperature capability. The photovoltaic cell is located between the guide rails, and the controller controls the driving motor to achieve movement of the cell position, so that the light transmission intensity is adjusted in good time. A mechanical arm and a control motor are arranged in the photovoltaic cell storage box and used for storage and output of photovoltaic cells, and the control motor receives instructions of the controller to operate. The controller is connected with the driving motor and the control motor through data lines, the shielding area ratio of the photovoltaic cell is automatically adjusted according to user requirements, and automatic adjustment of the light transmission intensity is achieved.

The invention discloses high-temperature-resistant and anti-yellowing LED (light-emitting diode) packaging glue which comprises glue A, glue B and powder C, the adhesive A comprises epoxy resin, a flexibilizer, a flatting agent, a main antioxidant, an auxiliary antioxidant, a diluent, a defoaming agent and a silane coupling agent; wherein the main antioxidant is a hindered phenol antioxidant; the auxiliary antioxidant is a phosphite ester antioxidant; the glue B comprises an anhydride curing agent and an accelerant; and the powder C comprises diffusion powder and matte powder. The hindered phenol antioxidant and the phosphite antioxidant have a synergistic effect, and the phosphite antioxidant reduces an oxidation product of the hindered phenol antioxidant, namely a benzoquinone chromophoric group, so that the color of a system is protected, and the long-term stability of the material is ensured; the heat resistance, the aging resistance, the oxidation resistance and the UV resistance of the packaging glue are improved, so that the packaging glue does not generate color change, the color of a system is protected, the long-term stability of a material is ensured, the yellowing delaying rate reaches 50% or above, and the high temperature resistance can reach 260 DEG C.

The invention provides a skin care composition containing stem cell extract as well as a preparation method and application of the skin care composition, and belongs to the technical field of cosmetics. The method comprises the following steps: mixing and culturing the extracted urine-derived stem cells and pilose antler stem cells in a DMEM culture medium added with epidermal growth factors, cholera toxin, penicillin, streptomycin, transferrin, IL-2 and IL-15, then separating a culture solution to obtain mixed exosomes, mixed stem cells and extracellular matrixes, preparing the mixed stem cells into stem cell lipidosome, and preparing the stem cell lipidosome. Embedding the stem cell extract and the mixed exosome into titanium dioxide / silicon dioxide microspheres, adding into an extracellular matrix, and uniformly dispersing to obtain the skin care composition containing the stem cell extract. The skin care composition containing the stem cell extract prepared by the invention can obviously prolong the preservation period of stem cells and exosomes and improve the repair and improvement of the stem cells and the exosomes on skin, and the prepared composition has better effects of resisting aging, whitening, promoting skin elasticity, resisting wrinkles and the like, and has a wide application prospect.

The invention provides a red ginseng extract special care essence and a preparation method thereof, and a red ginseng extract composition. The red ginseng extract composition comprises a red ginseng extract, deer bone collagen peptide, a red camellia extract, beta-nicotinamide mononucleotide, a rose extract, a moutan bark extract and a ligusticum wallichii extract. According to the invention, the red ginseng extract, the deer bone collagen peptide, the red camellia flower extract, the beta-nicotinamide mononucleotide, the rose flower extract, the moutan bark extract and the ligusticum wallichii extract are adopted, so that the prepared special care essence with the red ginseng extract has better oxidation resistance and aging resistance.

The invention discloses an antibacterial TPV material for an automobile and a preparation method of the antibacterial TPV material. The antibacterial TPV material is prepared from the following raw materials: 100 parts of ethylene propylene diene monomer; 50 to 70 parts of polypropylene; 40 to 60 parts of filler; 60 to 80 parts of filling oil; 1-3 parts of an antibacterial agent; 2-4 parts of a vulcanizing agent; 1-2 parts of an assistant vulcanizing agent; 0.5 to 1 part of an antioxidant; and 0.5 to 1 part of an anti-ultraviolet agent. A chitosan / nano-zinc oxide / porous silicon oxide composite material is prepared as an antibacterial agent, ZnO is uniformly loaded on a porous SiO2 skeleton, agglomeration among nano-ZnO particles is effectively avoided, the dispersity of the nano-ZnO particles in the material is improved, CS / ZnO / SiO2 is used as the antibacterial agent, and the automobile TPV material with good antibacterial performance is prepared. The material has good mechanical property and antibacterial property.

The invention relates to the technical field of recycling of asphalt pavement waste materials, in particular to an asphalt regenerant suitable for a hot-mixed recycled asphalt mixture and a preparation method of the asphalt regenerant. Wherein the mineral oil softens the aged asphalt, supplements lost light components in the aged asphalt and disperses other materials, and plays a continuous regeneration role in the regenerated asphalt mixture; the plasticizer improves the plasticity of the regenerated asphalt, so that the regenerated asphalt has better toughness, mechanical properties and impact resistance, and other materials are further dispersed under the synergistic effect of the plasticizer and the mineral oil; the anti-aging agent enhances the aging resistance and thermal stability of the recycled asphalt, and reduces the possibility of secondary aging of the recycled asphalt; the surfactant improves the interface state between the new asphalt and the old asphalt in the regenerated asphalt mixture, enhances the permeability of the regenerant and promotes mutual fusion of the new asphalt and the old asphalt; and the anti-stripping agent enhances the adhesion performance between the recycled asphalt and the aggregate, so that the recycled asphalt mixture has good thermal aging resistance and water damage resistance.

The invention relates to the technical field of amino acid compositions, and discloses a compound amino acid composition for enhancing telomerase activity, which comprises the following components (by weight): 20-25 parts of L-arginine; 15 to 20 parts of L-lysine; 25 to 30 parts of L-glutamine; 10 to 15 parts of L-serine; 5 to 8 parts of L-glycine; 3 to 5 parts of L-proline; 2 to 4 parts of N-acetyl-L-cysteine; 1 to 2 parts of L-tryptophan; 1 to 2 parts of beta-alanine; 2 to 3 parts of L-carnitine; 1-2 parts of taurine; through the synergistic effect of multiple mechanisms, the compound amino acid composition not only significantly enhances the telomerase activity (up to 195%), but also can maintain the telomere length, inhibit cell aging and provide antioxidant protection. The comprehensive regulation effect is derived from a unique metabolic network formed among the components, and mutual promotion and regulation are realized. Experimental results show that the long telomere length (8.3 kb vs control group 7.1 kb) can be maintained in 30-day long-term culture.

The invention provides an anti-aging high-strength nylon material for automobiles and a preparation process of the anti-aging high-strength nylon material, and is applicable to the field of polymer composite materials. The material comprises 50%-60% of a nylon matrix material, 30%-40% of glass fibers, 0.3%-0.6% of an antioxidant composition, 0.3%-0.5% of an ultraviolet light absorber, 0.2%-0.4% of a light stabilizer, 0.1%-0.2% of an anti-hydrolysis agent, 0.1%-0.3% of a lubricant and 5%-10% of a flexibilizer. The preparation process comprises the steps of drying of the nylon matrix and the glass fibers, high-speed mixing, twin-screw extrusion, cooling and pelletizing and injection molding, and the tensile strength, the impact strength and the aging resistance of the prepared nylon material are remarkably improved by optimizing the proportion and process parameters. The material is suitable for high-performance application of automobile structural parts, exterior trimming parts and the like, overcomes the defects of the traditional nylon in the aspects of weather resistance, mechanical strength and processability, and provides a high-performance and long-life material choice for the automobile industry.

The invention relates to the technical field of rubber materials, in particular to high-temperature-storage-resistant rubber composite modified asphalt and a preparation method thereof.The high-temperature-storage-resistant rubber composite modified asphalt is prepared from low-asphaltene asphalt, waste rubber powder, styrene-butadiene-styrene, a compatilizer, an activating agent and a stable coupling agent. The preparation method comprises the following steps: adding waste rubber powder, stirring, adding styrene-butadiene-styrene, heating, sequentially adding an activator and a stable coupling agent, carrying out a swelling reaction, carrying out primary cooling, shearing, and carrying out secondary cooling to obtain the high-temperature-storage-resistant rubber composite modified asphalt. The compatibility and the stability of the waste rubber powder, the SBS and the low-asphaltene asphalt can be effectively improved, the prepared product has good high-temperature and low-temperature performance, relatively good anti-aging performance and excellent high-temperature storage resistance, the service life of a pavement is prolonged, and the modified asphalt can be widely applied to heavy traffic roads, bridge floors, high-grade pavements, urban traffic and the like.

The invention relates to the field of cables, and discloses a super-soft distortion-resistant cable and a manufacturing method thereof.The super-soft distortion-resistant cable comprises a conductor layer, the conductor layer is formed by twisting tin-plated copper filaments with the wire diameter being 0.1 mm-0. 5mm, the surface of the conductor layer is coated with a layer of high-temperature-resistant coating, an insulating layer is arranged on the outer side of the conductor layer, and the insulating layer is arranged on the outer side of the conductor layer. The insulating layer is prepared by blending polyurethane and a thermoplastic elastomer material, an ultraviolet light absorber, an anti-aging agent and a cold-resistant plasticizer are added during manufacturing, an isolating layer is arranged on the outer side of the insulating layer, and the isolating layer is prepared by compounding a polyester film and a polyethylene material. Polyurethane can provide flexibility and wear resistance, polyethylene can increase flexibility and chemical resistance, polyurethane can increase flexibility and wear resistance, and the enhancement layer can improve the mechanical strength and durability of the cable, so that the super-flexibility and distortion resistance of the cable are further improved, and the applicability of the cable is enhanced.

The invention provides an anti-aging nanocellulose-based reinforced modified material and a preparation method thereof, and the preparation method comprises the following steps: sequentially carrying out phosphorylation treatment and nanocrystallization treatment on a cellulose raw material to obtain phosphorylated nanocellulose; the preparation method comprises the following steps: uniformly mixing phosphorylated nanocellulose, load modified mica nanosheets, a nonionic surfactant and deionized water to obtain a composite suspension, carrying out ultrasonic dispersion on the composite suspension to obtain a composite dispersion liquid, and carrying out spray drying on the composite dispersion liquid to obtain the nanocellulose-based reinforced modified material. According to the invention, the loaded modified mica nanosheet and the phosphorylated nanocellulose are compounded to prepare the anti-aging nanocellulose-based reinforced modified material, and the reinforced modified material can be used as a performance enhancer of high polymer materials such as coatings, rubber, plastics, foods, medical materials and the like to improve the product structure and improve the physical and chemical properties of the product; the anti-aging property, the mechanical property, the flame-retardant property and the like are realized.

The invention provides a preparation method of sealing aging resistant PBAT resin, biodegradable plastic and application, and the preparation method comprises the following steps: mixing adipic acid, butanediol and a first catalyst, and carrying out a first esterification reaction to obtain a first intermediate product; mixing terephthalic acid, m-phenylenediacetic acid, butanediol and a second catalyst, and carrying out a second esterification reaction to obtain a second intermediate product; performing a pre-polycondensation reaction on the first intermediate product, the second intermediate product and a pre-polycondensation catalyst in a polymerization reaction kettle to obtain a pre-polycondensation product; and carrying out final polycondensation on the pre-polycondensation product to obtain the sealing aging resistant PBAT resin. The edge sealing bag prepared from the sealing aging-resistant PBAT resin provided by the invention has more excellent sealing performance, and the sealing aging-resistant performance of the edge sealing bag is better.