238 results about "Aging resistance" patented technology

The invention provides a self-repairing EVA adhesive film and a preparation method thereof, and relates to the technical field of solar photovoltaic module packaging. According to the self-repairable EVA adhesive film disclosed by the invention, through Diels-Alder reactive group grafting and silane coupling agent microencapsulation technologies, a dual self-repairing mechanism of a photovoltaic module packaging adhesive film is realized, and the dual self-repairing mechanism comprises physical rearrangement repairing and chemical bonding repairing; while high light transmittance (more than or equal to 90%) and bonding strength (more than or equal to 96 N / cm) are maintained, the aging resistance (delta YI is less than or equal to 3) of the EVA adhesive film is remarkably improved, the service life of the EVA adhesive film is remarkably prolonged, and the problems that a traditional EVA adhesive film is easy to age in an extreme environment and is easy to suffer from micro damage caused by mechanical stress are solved; the preparation process disclosed by the invention is compatible with the existing production line, and has a relatively high industrial application value.

The invention relates to the technical field of sealing strips, in particular to an anti-aging ethylene propylene diene monomer rubber sealing strip and a preparation method thereof. Comprising the following components in parts by weight: 150-180 parts of ethylene propylene diene monomer, 60-90 parts of carbon black, 8-12 parts of white carbon black, 3-8 parts of a peroxide vulcanizing agent, 6-12 parts of zinc oxide, 12-16 parts of magnesium-aluminum hydrotalcite, 10-18 parts of a plasticizer, 1-3 parts of a crosslinking aid, 1-3 parts of calcium stearate, 1-3 parts of an anti-aging agent and 1-3 parts of a silane coupling agent. The anti-aging agent is a mixture of an anti-aging agent AN245 and an anti-aging agent MBZ. By adding the anti-aging agent, the aging resistance of the ethylene propylene diene monomer can be remarkably improved by inhibiting oxidation and delaying the aging process, a high-crosslinking-density three-dimensional network is formed through the peroxide vulcanizing agent, breakage of molecular chains at high temperature is reduced, thermal aging is delayed, and the ethylene propylene diene monomer sealing strip with excellent aging resistance is prepared.

The invention provides a preparation method of ovarian stem cells and application of the ovarian stem cells in ovarian aging resistance. More specifically, ovarian stem cells and polypeptide LRP-C5 which is separated from pilose antler polypeptide and has a good ovarian aging treatment effect are prepared and screened from ovaries, ovarian aging of rats can be well treated after the ovarian stem cells and the polypeptide LRP-C5 are used independently or jointly, and the application prospect is good.

The invention discloses a preparation method of a melt-blown multilayer composite liquid filtering membrane, and belongs to the technical field of liquid filtering membranes, the preparation method comprises the following steps: preparing an anti-aging agent, preparing a coating material, preparing first melt-blown cloth, preparing second melt-blown cloth, preparing third melt-blown cloth, and compounding; the step of preparing the anti-aging agent comprises the following steps: preparing modified lignin, preparing high-dispersion zinc oxide and coating; the preparation of the coating material comprises the following steps: preparing hydrophilic zinc oxide, and mixing; in the compounding step, the first melt-blown cloth, the second melt-blown cloth and the third melt-blown cloth are stacked from top to bottom and then are subjected to hot rolling compounding, and the composite melt-blown cloth is obtained; according to the preparation method, the filtering precision, the anti-pollution capacity, the regeneration capacity, the aging resistance and the air permeability of the melt-blown multi-layer composite liquid filtering membrane can be improved.

This invention relates to the field of sealing ring technology, and proposes an aging-resistant rubber sealing ring and its preparation method. An aging-resistant rubber sealing ring comprises the following components in parts by weight: 70-80 parts of nitrile rubber, 20-25 parts of chloroprene rubber, 20-30 parts of filler, 3-4 parts of activator, 1-2 parts of co-activator, 2-3 parts of antioxidant, 4-8 parts of plasticizer, 2-3 parts of crosslinking agent, and 1-2 parts of accelerator; the filler includes modified carbon nanotubes and nylon 66 fiber; the preparation method of modified carbon nanotubes includes the following steps: A1, adding carbon nanotubes to mixed acid, soaking, filtering, and drying to obtain pretreated carbon nanotubes; A2, adding the pretreated carbon nanotubes and methyl cyanobenzoate to ethyl acetate, stirring, concentrating, and drying to obtain modified carbon nanotubes. Through the above technical solution, the problem of poor aging resistance of rubber sealing rings in related technologies is solved.

The invention relates to the technical field of digital coating of solid wood, in particular to a three-section digital coating process for an odor-free anti-aging crack-resistant solid wood water paint board. The process comprises the following steps: S1, working section: base coat composite coating: coating four base coat coatings; s2, working section: performing digital pattern composite coating, including coating of three floating coatings; and S3, a water paint surface layer is subjected to composite coating, wherein coating of four surface coating layers is included. According to the three-section type digital coating technology, the problems that a solid wood paint panel is poor in aging resistance and crack resistance and poor in odor removal effect, and the stability and consistency of the optimal effect cannot be guaranteed by the solid wood feeling are solved; and the problems that the paint surface feeling of a solid wood paint panel of a pure UV coating system is not high-grade and high-end enough, and the surface effect, the surface performance and the environment-friendly and odor-removing performance are not extremely high enough are solved.

The invention relates to the technical field of cosmetics, in particular to an efficient anti-aging composition and a skin care product containing the composition. The invention discloses an efficient anti-aging composition which is prepared from the following raw materials in parts by mass: 12-15 parts of oil-based concentrated active ingredients, 25-35 parts of base collagen liquid, 15-18 parts of Ectoine, 12-16 parts of TWEEN 20 and 22-25 parts of isosorbide dimethyl ether, and the oil-based concentrated active ingredients are prepared from safflower seed oil, an extract of flowers / leaves / stems of herba lysimachiae, an extract of radix astragali membranaci, ubiquinone and vitamin E; the base collagen liquid comprises XVII type collagen, VII type collagen and IV type collagen. Aiming at the problems that an existing skin care product cannot effectively reduce skin wrinkles, improve skin compactness, reduce skin sagging and prevent skin aging for a long time, the composition disclosed by the invention realizes long-term aging resistance from epidermis to dermis, effectively reduces wrinkles, improves compactness and improves skin sagging.

The invention discloses a preparation method of reactive antioxidant grafted modified nylon 6 and a film thereof, and belongs to the technical field of nylon modification. A reactive antioxidant containing a hindered phenol structure and nylon 6 are subjected to melt chemical grafting to form a covalent bond combined nylon 6-antioxidant system, and hindered phenol provides hydrogen atoms and can be combined with free radicals generated in the aging process, so that the chain reaction of the hindered phenol is terminated, and phenoxy free radicals with low activity are formed by the hindered phenol. According to the invention, the reactive antioxidant grafted modified nylon 6 is further processed into a film product, and the nylon 6 film product prepared by the method has the advantages of less antioxidant migration, aging resistance, high mechanical property retention rate and the like.

The invention relates to the technical field of photovoltaic packaging materials, and discloses a butyl sealant for a self-repairing photovoltaic module and a preparation method of the butyl sealant. The butyl sealant is prepared from the following substances in parts by weight: 40 to 60 parts of modified butyl rubber, 20 to 35 parts of inorganic filler, 5 to 15 parts of tackifying resin, 2 to 8 parts of plasticizer, 0.5 to 2 parts of anti-aging agent, 0.3 to 1.0 part of bifunctional crosslinking monomer, 0.08 to 0.25 part of composite catalyst, 2 to 5 parts of microcapsule type repairing agent and 3 to 10 parts of drying agent. According to the invention, through the dual-mechanism design of a'sulfydryl-amino-silicon oxygen bond 'dynamic network and the microcapsule type repairing agent, the self-repairing performance and the aging resistance are synchronously and remarkably improved, and the contradiction that'the self-repairing performance and the aging resistance of a traditional material are difficult to consider at the same time' is solved. Tests show that the 12h repair rate of the sealant for 3mm scratches at 50 DEG C is greater than or equal to 98%, the tensile strength retention rate is greater than or equal to 92% after the sealant is subjected to damp-heat aging at 85 DEG C / 85% RH for 1000 h, and the sealant is superior to existing similar products.

The invention relates to the technical field of waterproof coiled materials, and provides an anti-aging film for a waterproof coiled material and a preparation method thereof.The anti-aging film is formed by crossing and compounding multiple layers of films, and the multiple layers of films sequentially comprise an inner layer film, a middle layer film and an outer layer film from top to bottom; wherein the outer-layer film comprises the following components in parts by weight: 80-90 parts of high-density polyethylene, 6-8 parts of black masterbatch, 10-15 parts of hydroxyl nicotinic acid compound modified carbon black, 1-2 parts of an antioxidant and 2-4 parts of a plasticizer, the modified carbon black is hydroxyl nicotinic acid compound modified carbon black, and the inner-layer film and the middle-layer film are polymer film layers. According to the technical scheme, the problem that in the prior art, the aging resistance of the film for the waterproof roll is poor is solved.

The invention relates to the technical field of bioengineering, in particular to recombinant XVII type collagen with oxidation and aging resistance and an expression method and application thereof, the amino acid sequence of the collagen comprises n amino acid residue repetitive units, the sequence of the repetitive units is shown as SEQ ID NO.1, and n is larger than 1 and smaller than or equal to 60. The recombinant XVII type collagen provided by the invention has antioxidant and anti-aging activity, and is large in molecule quantity and easy to prepare.

The invention relates to the technical field of anti-aging agents, and discloses a preparation method of an anti-aging agent and application of the anti-aging agent in plastics, the anti-aging agent contains styrene groups, and can be well fused and grafted with polyolefin such as polypropylene under the action of an initiator dibenzoyl peroxide or dicumyl peroxide, so that the anti-aging agent has a good anti-aging effect. The influence on the mechanical strength of the polyolefin plastic is very small, and the problem that physical blending can cause great influence on the mechanical strength and the use performance of the plastic can be avoided. Meanwhile, a phenol triazine structure contained in the anti-aging agent has a unique ultraviolet absorption effect, and a hindered amine structure is contained, so that the photo-oxygen degradation reaction of the polyolefin plastic can be inhibited through multiple ways of capturing free radicals and decomposing hydroperoxide, and through an accelerated aging experiment of xenon lamp irradiation, the plastic keeps very high tensile strength, and the anti-aging effect is good. And excellent thermo-oxidative aging resistance and ultraviolet radiation aging resistance are shown.

The present invention discloses an orange enhanced masterbatch and a preparation method thereof, belonging to the technical field of polymer material coloring. The method includes mixing and ball-milling a pigment with a modified coupling agent, adding magnesium stearate and then sand-milling to obtain a color paste; mixing the color paste with PP, antioxidant, plasticizer and light stabilizer and carrying out intensive mixing; then extruding and pelletizing through a twin-screw extruder to obtain a pretreated masterbatch; finally drying and screening to obtain the orange enhanced masterbatch. Compared with the prior art, the present invention is prepared by a specific synthesis process, enhancing the compatibility between the pigment and PP, and improving the dispersibility and aging resistance of the masterbatch. The masterbatch of the present invention has excellent color uniformity, stability and aging resistance, and is applicable to the field of high-performance plastic coloring.

The invention relates to the technical field of sole production, in particular to a high-resilience anti-aging TPU sports shoe sole and a preparation method thereof. The TPU sports shoe bottom piece comprises a TPU composite film and a TPU insole arranged on the surface of the TPU composite film, and the TPU composite film is a double-layer co-extrusion film prepared from TPU particles and TPU hot melt colloidal particles through a casting co-extrusion process. The TPU composite film and the TPU midsole are integrally formed, so that the weight of the sole can be remarkably reduced, meanwhile, the production process is effectively simplified, the TPU sports shoe bottom piece is endowed with good rebound resilience, wear resistance and slip resistance, the sole is stressed more uniformly in all directions, and the service life of the sole is prolonged. Therefore, the comfort of the TPU sports shoe bottom piece is improved, and the foot is stably protected.

The invention relates to the technical field of protein design, and particularly discloses an Mfp-SOD recombinant protein as well as a preparation method and application thereof. According to the recombinant protein, mussel mucin Mfp-3 is used as a skeleton to assist anchoring of human-derived protein SOD, and a novel recombinant protein is obtained. According to the recombinant protein, two proteins are fused, so that the recombinant protein has excellent skin surface affinity and the functions of oxidation resistance, aging resistance, whitening, spot fading, inflammation resistance, sunscreen and the like, and the effects of oxidation resistance and aging resistance can be exerted for a long time.

The invention belongs to the field of structural adhesives, and particularly relates to an ultrahigh-strength epoxy structural adhesive for a wind power mixing tower and a preparation method of the ultrahigh-strength epoxy structural adhesive. The ultrahigh-strength epoxy structure adhesive for the wind power mixing tower comprises the following raw materials in parts by weight: 45-55 parts of an epoxy resin matrix, 8-12 parts of a curing agent, 18-22 parts of a toughening agent, 13-17 parts of filler and 4-6 parts of a coupling agent. The ultrahigh-strength epoxy structure adhesive for the wind power mixing tower has excellent mechanical performance, aging resistance and fatigue resistance, the epoxy resin matrix and the curing agent can be subjected to a cross-linking reaction to form a three-dimensional network structure, the toughening agent can improve the toughness and impact resistance of the material, and the curing agent can be used for curing the ultrahigh-strength epoxy structure adhesive for the wind power mixing tower. The filler can further improve the strength and wear resistance of the material, and finally the coupling agent improves the interface bonding force of the material. The preparation method disclosed by the invention is simple to operate, convenient to construct and beneficial to large-scale popularization.

The invention relates to the technical field of film materials, and particularly discloses an environment-friendly high-strength salt film and a preparation method thereof.The salt film is prepared from, by weight, 90-110 parts of grafted PVC, 35-45 parts of environment-friendly plasticizer, 3.0-4.5 parts of heat stabilizer, 0.3-0.6 part of benzotriazole ultraviolet light absorber, 0.4-0.8 part of hindered amine light stabilizer, 0.2-0.4 part of antioxidant, 0.5-1.5 parts of lubricant, 10-20 parts of filler and 1-2 parts of degradation promoting agent. Through the cooperation of the ultraviolet light absorber, the light stabilizer and the antioxidant, the anti-aging performance is realized, and the service life of the smoke film is prolonged; meanwhile, by enhancing the compatibility between the PVC resin and the auxiliaries, migration of the auxiliaries is reduced, and pollution to brine is reduced; in addition, degradation of PVC is enhanced by adopting a degradation promoting agent of a microbial environmental degradation triggering mechanism, non-interference to the service life and high-efficiency degradation after waste are realized, and two contradictory performances of environmental friendliness, degradability and weather resistance are met.

The invention belongs to the technical field of generator stator coil materials, and particularly relates to a method and a system for evaluating aging resistance of a generator stator coil in a high-altitude environment. The method is based on research on service characteristics and evolution laws of a generator stator coil in a high-altitude environment; the aging resistance of the generator stator coil is evaluated through the following indexes for the first time: testing the breakdown voltage of the stator coil, the concentration of volatile organic compounds detected under the thermo-oxidative aging condition, the heat conductivity coefficient, the specific surface area of solid substances, the porosity and the liquid adsorption performance. The evaluation method provided by the invention has the advantages of accuracy and rapidness, and has a good application prospect.

The invention provides a plasma-based modification method for aging resistance and flashover resistance of the surface of an insulating material, and relates to the technical field of surface modification of insulating materials, and the plasma-based modification method specifically comprises the following modification steps: step 1, grinding 40-60 parts of the insulating material and then sieving; step 2, pouring into 40-60 parts of deionized water, and mixing; and 3, pouring 22-25 parts of absolute ethyl alcohol, heating, carrying out ultrasonic dispersion for 10-15 minutes, and stirring. According to the method for modifying the aging resistance and flashover resistance of the surface of the insulating material based on the plasma, the coupling agent cooperates with the plasma to perform composite modification treatment on the surface of the insulating material, so that the grafting rate of the surface of the insulating material and the coupling agent is increased, the surface of the insulating material is etched, the roughness is improved, and the surface energy is increased; further through plasma modification treatment, the direct-current vacuum surface flashover voltage of the insulating material is remarkably improved, and the method is simple in process, safe in process and environmentally friendly and can be widely applied to the field of high-voltage insulating materials.

The application belongs to the technical field of functional plastics, and particularly relates to a flame-retardant modified ABS plastic and a preparation method thereof. The flame-retardant modified ABS plastic comprises the following components in parts by weight: ABS resin 70-90 parts, flame retardant 6-10 parts, ultraviolet absorber 0.5-1.5 parts, lubricant 0.2-1 part, reinforcing agent 1-1.5 parts, and calcium carbonate 0.5-1.5 parts; the structural formula of the flame retardant is as follows: the ABS plastic has excellent mechanical properties and aging resistance.

The invention discloses an anti-aging plastic woven bag and a preparation method thereof, belongs to the technical field of plastic woven bags, and solves the problem that the strength and the anti-aging performance of woven bags in the prior art are not ideal enough. The anti-aging plastic woven bag is prepared from the following components in parts by mass: 35 to 50 parts of polypropylene particles, 15 to 35 parts of polyethylene, 5 to 15 parts of polypropylene film, 5 to 15 parts of calcium carbonate, 0.5 to 1.5 parts of anti-aging agent and 0.5 to 1.5 parts of silicon dioxide aerogel. The aging-resistant plastic woven bag provided by the invention has excellent tensile property, wear resistance and aging resistance.

The invention belongs to the technical field of cultural relic protection, and particularly relates to an anti-aging and anti-cracking organic silicon stone protection material and a preparation method and application thereof.The organic silicon stone protection material has the structure shown in the formula (I), in the formula (I), R1 is one of-CH3 and-CH2CH3, and y is a positive integer between 1 and 300; r1 is one of R1, R2 is one of R2, and z is a positive integer between 0 and 300. Compared with the prior art, the problems that in the prior art, material permeation is affected, stone degradation is accelerated, and the protection effect is limited at least are solved. According to the scheme, phenyl is introduced to form the phenyl modified organic silicon oligomer material, so that excellent high-temperature resistance and ultraviolet aging resistance are realized, and the problem of cracking in the gelation process is solved.

The utility model discloses an environment-friendly wiredrawing embossed film which comprises a base material layer, the base material layer is a fluorocarbon PDF film, a first coating layer is arranged on one surface of the fluorocarbon PDF film, a first processing layer and a second processing layer are sequentially formed on one surface, opposite to the fluorocarbon PDF film, of the first coating layer from inside to outside, and the first processing layer and the second processing layer are arranged on the other surface of the fluorocarbon PDF film. One of the first treatment layer and the second treatment layer is a wiredrawing layer, the other one is an embossing layer, or both the first treatment layer and the second treatment layer are wiredrawing layers or embossing layers. And the fluorocarbon PDF film with good aging resistance is adopted as the substrate layer, so that the aging resistance of the product is greatly improved. The first coating layer is provided with the first treatment layer and the second treatment layer, the first treatment layer and the second treatment layer can be selected to be a wiredrawing layer and / or an embossing layer, the wiredrawing layer is simple in processing technology and low in cost and has metal texture, the embossing layer enables the surface of the film to have a dermatoglyph three-dimensional effect, and the appearance performance of a product is improved.

The invention discloses piezoelectric ceramic with high mechanical quality factor and high temperature aging resistance and a preparation method thereof, and belongs to the technical field of piezoelectric ceramic. The general chemical formula of the piezoelectric ceramic with high mechanical quality factor and high temperature aging resistance is (Bi < 0.5 > Na < 0.44 > K < 0.04 > Li < 0.02 >) (Ti < 1-x > Cox) O < 3, 0.01 lt >, xlt; and 0.03 part. The preparation method of the piezoelectric ceramic comprises the following steps: carrying out primary ball milling and drying on raw materials; pre-sintering is performed; carrying out secondary ball milling and drying; adding a polyvinyl alcohol aqueous solution, granulating, sieving, pressing and discharging glue; and sintering, applying a silver electrode, and applying voltage for polarization to obtain the piezoelectric ceramic. By adopting the piezoelectric ceramic with high mechanical quality factor and high-temperature aging resistance and the preparation method, the problem that the stability of the piezoelectric ceramic is influenced due to serious high-temperature aging of the existing sodium bismuth titanate-based piezoelectric ceramic can be solved.

The invention provides a PBS resin composition and a preparation method and application thereof, the PBS resin composition comprises a combination of poly (butylene succinate), a cyclic oligomer and a linear oligomer, the mass content of the cyclic oligomer is 500-10000 ppm, and the mass content of the linear oligomer is 50-1000 ppm; the PBS resin composition has specific active end group content and molecular weight distribution through compounding and combined action of the cyclic oligomer, the straight-chain oligomer and the poly (butylene succinate) with specific content, the PBS resin composition has excellent mechanical property and hydrolysis aging resistance, and each component has excellent biodegradability, is good in safety and can be widely applied to the field of medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments, medical instruments and the like. The application requirements in food contact materials can be fully met.

This application relates to a paint protection film for metallic paint surfaces, which is made by laminating a high-molecular polymer onto a TPU base film using a coating technology. The high-molecular polymer contains bio-cellulose and polyhydroxyalkanoates. The paint protection film of this invention provides excellent protection for vehicle paint and has self-healing properties, preventing scratches and significantly reducing the overall impact of scratches on the vehicle's appearance. Furthermore, the paint protection film exhibits excellent aging resistance and can be customized through color changes, matte finishes, and other treatments.

The invention discloses a method for preparing a polyurethane hot melt adhesive for wood edge banding, and belongs to the technical field of hot melt adhesives. The preparation method comprises the following steps: (1) mixing isocyanate and polyol, adding a catalyst, and stirring and reacting at 70-85°C for 20-30 minutes; (2) adding polypropylene carbonate, nanocomposite microcapsules, modified nano mineral crystals, modified mineral wool, and a tackifier to the solution of step (1), mixing at 100-130°C for 2-3 hours, and obtaining a polyurethane hot melt adhesive. The polyurethane hot melt adhesive prepared by the method of the invention has fast curing speed, good bonding performance, high aging resistance, and low release of harmful gases during use.

A sulfur-containing aromatic acrylate compound, its preparation method, and its applications are disclosed. The compound has a structure as shown in general formula (A), which integrates acrylate, benzophenone, and thioether functional groups in its molecular structure, adapting to the application requirements of various optical material raw materials. This invention also provides an efficient preparation process for this compound. Optical materials prepared using this compound as a monomer exhibit excellent aging resistance and anti-yellowing properties, as well as outstanding mechanical properties. Wherein, R1=CH2=CH-COO; R2=CH3; n=2 or 3, m=0, 1, or 2.

The utility model discloses a durable door seal of a high-power industrial dry cleaning machine, which comprises a door seal body, a protective layer is arranged on the surface of the door seal body, the protective layer comprises an elastic layer, an anti-aging layer, an anti-puncture layer, a high-temperature-resistant layer, an anti-corrosion layer and a wear-resistant layer, the anti-aging layer is arranged on one side of the elastic layer, and the anti-puncture layer is arranged on the other side of the elastic layer. And an anti-puncture layer is arranged on one side of the anti-aging layer. By designing the anti-aging layer, the overall anti-aging performance of the door seal body can be improved conveniently, by designing the anti-puncture layer, the nanofiber layer, the polymer fiber layer and the activated carbon fiber layer, the door seal body can have the function of preventing puncture of sharp objects, by designing the elastic layer, the door seal body is increased to a certain degree of toughness, and the service life of the door seal body is prolonged. By designing the corrosion-resistant layer, corrosive liquid is prevented from corroding the door seal body, by designing the abrasion-resistant layer, the abrasion amplitude of the door seal body in the long-time using process is reduced, and the service life of the door seal body is prolonged.

The present invention proposes a method for predicting the aging resistance of household wire harnesses, which relates to the field of data prediction. The method includes a time series decomposition preprocessing module, a graph connection strength tensor mapping module, a spatiotemporal gravity extraction module, and a structural response predictor module. First, the multi-dimensional time series data of the household wire harnesses is extracted, and the trend, seasonality, and residual decomposition are performed on it to provide refined input features for subsequent modules; then, the graph connection strength tensor mapping module quantifies the coupling strength and mutual influence between components by constructing a high-order structural response tensor between variables, and generates a dynamic tensor basis for mapping; then, combining structural curvature and graph connection strength, the spatiotemporal change characteristics of the household wire harnesses under different usage conditions are accurately extracted, further enhancing the prediction model's perception of the aging process; finally, through dynamic differential modeling, the disturbance response and nonlinear adjustment factors are used to predict the future aging trend of the household wire harnesses and output the final result.