111 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 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 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 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 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.

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.

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 invention discloses a TPU (thermoplastic polyurethane) film as well as a preparation method and application thereof. The TPU film comprises a base cloth layer, a bonding layer and a functional layer, the bonding layer is prepared from the following components: a first TPU base material, polymethyl methacrylate, a compatilizer and an antioxidant; the functional layer comprises the following components: a second TPU base material, fluorocarbon betaine, silicone, an ultraviolet absorbent and a coupling agent. The TPU film disclosed by the invention can also realize better water resistance and pollution resistance on the premise of keeping better adhesive property and better aging resistance.

The utility model provides a test auxiliary device for testing stress cracking resistance and aging resistance of plastics, which comprises a support, an upper supporting piece used for supporting the middle of a plastic test strip is arranged in the middle of the support, and lower pressing pieces used for pressing two ends of the plastic test strip are arranged on two sides of the support and spaced from the upper supporting piece. The supporting surface of the upper supporting piece is higher than the lower pressing surface of the lower pressing piece, so that the plastic test strip is limited between the upper supporting piece and the lower pressing piece in a bent shape. According to the utility model, the bracket is arranged, the upper supporting piece and the suspended lower pressing piece are arranged on the bracket, and the supporting surface of the upper supporting piece is higher than the lower pressing surface of the lower pressing piece, so that the middle part of the plastic test strip can be supported on the upper supporting piece, and the two ends of the plastic test strip are pressed by the lower pressing piece and cannot fall off; after the test auxiliary device and the plastic test strip on the test auxiliary device are placed in a use environment, stress cracking resistance and aging resistance tests of the plastic test strip are facilitated, the test time is shortened, the test period is shortened, and rapid judgment is facilitated; the device is simple in structure and convenient to operate, and can be widely applied to related tests such as stress cracking resistance tests and aging resistance tests of materials.

A fatigue- and aging-resistant rubber composition and the method of use thereof are provided. The formulation of the rubber composition comprises 100 parts by mass of a diene elastomer and 1-3 parts by mass of a compound of formula A. The compound of formula A is as follows:which significantly improves the fatigue and aging resistance of the rubber composition and prolongs the service life of rubber products.

The application discloses an anti-aging luggage cloth and a preparation method thereof. Polyethylene imine is mixed into PVC in a blending mode to obtain a PVC blending film. Water in the polyethylene imine aqueous solution plays a role of a pore forming agent in the film forming process. The volume originally occupied by water molecules forms a pore structure, which is beneficial to the subsequent loading of titanium dioxide and 2-mercaptobenzimidazole, improves the loading capacity, and further improves the anti-aging performance of the luggage cloth. Titanium acid tetraisopropyl ester and 2-mercaptobenzimidazole are added into an ethanol solution to avoid the direct addition of titanium dioxide powder and 2-mercaptobenzimidazole, and the problem of easy agglomeration. The titanium dioxide and 2-mercaptobenzimidazole jointly improve the anti-aging performance of the cloth. Then, under the action of a crosslinking agent, epoxy chloropropane, the titanium dioxide and 2-mercaptobenzimidazole are firmly attached to the PVC film and are not easy to fall off. After multiple water washing, the luggage cloth still has good anti-aging performance.

The application relates to a BMC molded lightweight safety shoe protective package head, and relates to the technical field of safety protection equipment, which comprises a BMC package head in an arc-shaped dome shape. The application sets the package head made of BMC material, the BMC material has unique density characteristics, compared with the material used for the protective package head of safety shoes in the prior art, the weight of the package head can be effectively reduced, the BMC material has good fluidity and moldability, can be molded once under high temperature and high pressure, and large-scale industrial production can be easily realized, the production efficiency is greatly improved, the internal structure of the BMC material is uniform and compact after being molded, the BMC material has high strength, hardness and toughness, can effectively disperse and bear external impact force, the BMC material has excellent aging resistance and corrosion resistance, the service life of the package head and the safety shoes is prolonged, the raw material cost and the production process cost of the BMC material are relatively low, the production cost can be effectively controlled while meeting the safety protection requirements.

This invention belongs to the field of resilient flooring technology, specifically relating to a processing method for environmentally friendly resilient flooring. This invention provides a processing method for environmentally friendly resilient flooring using polyolefins, EPDM rubber, halogen-free flame retardants, and surface-modified Ag / ZnO nanocomposite antibacterial agents as raw materials. Through processes such as mixing, extrusion, and irradiation treatment, the resulting environmentally friendly resilient flooring not only possesses excellent antibacterial and flame-retardant properties but also exhibits excellent wear resistance and aging resistance, and is environmentally friendly. This invention, through innovative research on the selection of flooring raw materials and key production technologies, has developed a functional, green, and environmentally friendly resilient flooring. This not only provides people with a healthy living environment during travel but also has significant practical implications for the industrial upgrading of high-quality flooring for my country's rail transit sector and for expanding the application fields of flooring.

This invention relates to the field of plastic composite materials technology, and discloses an aging-resistant plastic composite material and its preparation method, specifically including: synthesizing an aging-resistant silane coupling agent and an aldehyde-modified aging-resistant silane coupling agent; based on the silanol-hydroxyl condensation reaction mechanism, jointly modifying the aging-resistant silane coupling agent and the aldehyde-modified aging-resistant silane coupling agent onto the surface of rutile TiO2 nanoparticles; then, based on the aldehyde-amino Schiff base reaction mechanism, combining the TiO2 nanoparticles with aldehyde functional groups on the surface with amino-functionalized kaolin to obtain an aging-resistant modifier; based on the π-π stacking effect, combining the aging-resistant modifier with SBR rubber, and obtaining aging-resistant SBR rubber particles through a crushing process; and compounding the aging-resistant SBR rubber particles with a polyurethane adhesive to obtain an aging-resistant plastic composite material, which exhibits excellent resistance to photo-oxidative aging and thermo-oxidative aging.

This invention discloses an anti-detachment, anti-aging, warm-mix agent, its preparation method, and its application. The anti-detachment, anti-aging, warm-mix agent of this invention comprises the following raw materials: styrene-butadiene-styrene copolymer, ethylene-vinyl acetate copolymer, styrene-butadiene rubber, polyethylene oxide, resin, p-phenylenediamine compounds, coupling agent, antioxidant, surfactant, and aromatic oil. The anti-detachment, anti-aging, warm-mix agent of this invention is in paste form and, when used in airport runway asphalt, can significantly improve the adhesion strength of airport runway asphalt, improve its anti-detachment performance, enhance its heat aging resistance, and exhibit strong adaptability to the high-temperature exhaust environment of aircraft. It also provides a warm-mix effect, reducing the service temperature of the asphalt, mitigating thermal aging during mixing with aggregates, reducing harmful gas emissions, and alleviating environmental pollution.

This invention discloses an anti-stripping and anti-aging agent, its preparation method, and its application. The anti-stripping and anti-aging agent of this invention comprises the following raw materials: styrene-butadiene-styrene copolymer, styrene-butadiene rubber, polyethylene oxide, styrene-modified phenol, p-phenylenediamine compounds, coupling agents, and antioxidants. The preparation method of the anti-stripping and anti-aging agent includes: mixing the above materials evenly, followed by kneading and extrusion to obtain the anti-stripping and anti-aging agent. The anti-stripping and anti-aging agent of this invention is in granular form and, when used in airport runway asphalt, can significantly improve the adhesion strength of airport runway asphalt, improve its anti-stripping performance, enhance its heat aging resistance, and exhibit strong adaptability to the high-temperature wake environment of aircraft.

The invention relates to the technical field of artificial stone machine tool manufacturing, in particular to a high-performance artificial stone machine tool body and an installation technology, the high-performance artificial stone machine tool body comprises a plurality of modules, the modules are independently manufactured through molds, and every two adjacent modules are connected through a connecting mechanism; positioning holes are formed in the end faces, close to each other, of every two adjacent modules, the positioning holes are formed in a staggered mode, the connecting mechanism comprises a plurality of positioning pins, and the positioning pins are fixedly connected to the end faces, close to each other, of every two adjacent modules respectively and inserted into the positioning holes respectively. The positioning holes are filled with adhesives, and the splicing faces of the two modules are also coated with adhesives. The method has the effect of reducing the probability of permanent reduction of material strength, rigidity and aging resistance caused by thermal degradation of the resin and the risk of part cracking.

The present invention relates to a biomimetic anti-aging skincare product in particular a beautification product with a skin nursing complex that comprises an aging resistance effect, characterised in

This invention relates to the field of material aging testing technology and provides a method for testing the UV transmittance decay of adhesive tape, comprising the following steps: S1: Calculate and output the UV aging resistance index based on the ratio of the transmittance of the adhesive tape sample after a first preset aging time to the initial transmittance, the ratio of the transmittance after a second preset aging time to the initial transmittance, and the absolute value of the difference between the transmittance after the first preset aging time and the transmittance after the second preset aging time. This invention not only calculates the UV aging resistance index but also comprehensively incorporates indicators such as repeatability bias, goodness of fit, and residual fit to output a test accuracy evaluation index. This index can quantify the reliability of the testing process, avoiding misjudgments that may be caused by traditional methods relying solely on transmittance as a single indicator, and significantly improving the scientific validity and reliability of the test results.

This invention belongs to the field of molecular breeding technology and provides a method based on... C12orf4 Molecular breeding methods and applications for genetic variations of the eQTL gene in eggshell strength and anti-aging resistance. This invention utilizes molecular marker combinations... C12orf4 Gene expression levels have a regulatory role; the molecular marker combination is located at Chr1:72995066, Chr1:73250348, and Chr1:73614612 loci in the chicken genome, respectively. This invention, through multidimensional association analysis integrating genomic, transcriptomic, and phenotypic data, identified and constructed a key gene that can prospectively and systematically reflect the process of tissue functional decline in laying hens. C12orf4 The molecular marker combinations provided by this invention offer a new technical means for the accurate assessment of aging-related traits in laying hens and for molecular breeding, and have significant application value and industrial significance.

This utility model belongs to the field of PVC power pipe technology and discloses an aging-resistant PVC power pipe, including a multi-layer composite pipe body. The multi-layer composite pipe body comprises, from the inside out, a PVC base layer, a weather-resistant modified layer, and an outer protective layer. A connecting sleeve is installed at one end of the multi-layer composite pipe body. An installation ring is installed on the periphery of the end of the multi-layer composite pipe body near the connecting sleeve. A pair of installation blocks are installed around the periphery of the installation ring. One side of each installation block has a through groove. An installation ring is installed on the periphery of the end of the multi-layer composite pipe body away from the connecting sleeve. A pair of installation blocks are installed on both sides of the installation ring. One side of each installation block has a through groove. The device also includes an arc-shaped baffle and a locking mechanism. This device has a simple and reasonable structure, a novel design, and is easy to operate. It has high practicality and is easy to widely promote and use.

The invention discloses a preparation method of an AHP-8 and jellyfish collagen co-crosslinked hydrogel microneedle patch. The preparation method comprises the following steps: (1) preparing jellyfish collagen; (2) preparing modified jellyfish collagen; (3) preparing a mixed solution of modified jellyfish collagen and poly (N-isopropylacrylamide); (4) preparing an AHP-8 poly (N-isopropylacrylamide) mixed solution; (5) preparing the microneedle patch in the microneedle patch silica gel mold; and (6) irradiating by using an ultraviolet lamp for crosslinking, and demolding to obtain the AHP-8 and jellyfish collagen co-crosslinked hydrogel multi-layer microneedle patch. The microneedle patch disclosed by the invention has the advantages of low sensitization, high-efficiency aging resistance and intelligent release transdermal drug delivery.

The invention belongs to the technical field of structural adhesives, and discloses an environment-friendly polyurethane structural adhesive and a preparation method thereof. According to the invention, polyether polyol, isocyanate and a diluent are adopted as a basic system, an environment-friendly flexibilizer, an anti-aging agent and a coupling agent are innovatively added, and the environment-friendly polyurethane composite material is prepared by compounding the following components in parts by mass: 30 parts of polyether polyol, 50 parts of isocyanate, 20 parts of an environment-friendly diluent, 3-5 parts of an environment-friendly flexibilizer, 1-2 parts of a bio-based anti-aging agent and 0.5-1 part of a silane coupling agent. The prepared structural adhesive does not release harmful substances such as formaldehyde and benzene series, has higher bonding strength, excellent flexibility, aging resistance and base material adaptability, is simple and environment-friendly in preparation process, can be widely applied to the fields of furniture manufacturing, plate bonding, buildings and the like, and is remarkable in practicability and market prospect.

The application discloses a kind of preparation methods for high transparent polyethylene film additive, belong to polyethylene technical field, to solve the technical problems of high transparent polyethylene film in prior art, high production cost, aging resistance performance needs to be further provided, including nucleating agent grafting quaternary ammonium salt modified nanosilica and low-density polyethylene are mixed, initiator is added, by melt grafting reaction in twin-screw extruder, reaction is finished, extrusion, cooling, granulation, obtain intermediate I;Intermediate I, antioxidant 168, antioxidant 1076, zinc stearate, antistatic agent 1800 and mustard acid amide are mixed, to obtain high transparent polyethylene film additive;The high transparent polyethylene film additive prepared in the application is mixed with low-density polyethylene, and the processing performance is good, to obtain the high transparent polyethylene film with lower cost;This film not only has good transparency and tensile property, but also has good aging resistance.

The application belongs to the technical field of rubber material modification, and discloses an anti-aging cross-linking modification treatment method for a rubber basketball inner liner, which comprises the following steps: step 1, pretreatment; step 2, preparation of a composite cross-linking agent; step 3, mixing; step 4, sectional cross-linking; step 5, gradient vulcanization; step 6, post-treatment; and step 7, performance detection. The application adopts a dynamic disulfide bond-hydrogen bond double cross-linking system and rare earth composite modification synergistic effect, breaks through the technical bottleneck of traditional single cross-linking and single modification, the double cross-linking system can form a dense and stable three-dimensional cross-linking network, the mechanical properties and fatigue resistance of the inner liner are improved, the rare earth modifier can capture aging free radicals, tea polyphenol extract and nano titanium dioxide form a double anti-aging protection, the three are synergistic, the anti-aging performance of the inner liner is greatly improved compared with the existing traditional process, the service life is significantly prolonged compared with the existing product, and the problems of easy aging and elastic attenuation of the existing inner liner are solved.

The application discloses a kind of preparation methods of flame-retardant aging-resistant high-transparency polyurethane, the polyurethane is first with 2-amino-1,3-propanediol, 2-chloro-4,6-diphenyl-1,3,5-triazine, diphenyl phosphorochloridate and triphenylchlorosilane composite preparation DADT, then DADT is mixed with polyether polyol, isocyanate to obtain;The preparation method of the application is simple, the process is easy to control, the obtained polyurethane material limit oxygen index reaches 29.6%, meets commercial flame-retardant standard and reaches UL-94 V-0 flame-retardant grade;Material has excellent aging resistance, heat-oxygen tensile strength retention rate is 88.5%, heat-oxygen breaking elongation retention rate is 77.4%, and ultraviolet breaking elongation retention rate is 71.4%, can be applied to automobile ultraviolet protection diaphragm, flame-retardant filled foam, fire guide sign protection film and the like scene.

The invention relates to the technical field of cosmetics, in particular to application of mogroside V in preparation of skin barrier repair cosmetics, the mogroside V serves as an active ingredient, the purity of the mogroside V is not lower than 30%, and the mogroside V can be prepared into various cosmetic dosage forms such as toning lotion, facial masks and essence cream. The mogroside V has no significant toxicity to keratinocytes, can accelerate skin barrier repair by promoting cell migration, has significant antioxidant activity, and can scavenge free radicals, reduce oxidative stress injury and realize synergistic effects of barrier repair and oxidation resistance and aging resistance. Besides, mogroside V is a natural water-soluble component, can be stably dispersed in a water-based formula without a solubilizer, is free of thick and sticky feeling during use, and solves the problem of skin feeling pain points of traditional repairing components. The barrier damage problems of dry skin, redness, desquamation and the like can be improved in a targeted manner, and the application prospect is wide.

This invention relates to an aging-resistant, high-whiteness BOPP matte white label film and its preparation method, belonging to the technical field of white label films. The aging-resistant, high-whiteness BOPP matte white label film comprises a matte layer, a core layer, and a glossy layer arranged sequentially. The matte layer comprises random copolymer polypropylene, 40-45 wt% high-density polyethylene, 2-4 wt% ethylene-2-allyl anisole random copolymer, and 0.1-0.5 wt% antioxidant. The core layer comprises homopolymer polypropylene and 10-20 wt% white masterbatch, which comprises homopolymer polypropylene, 5-10 wt% ultra-high molecular weight polyethylene, and 50-70 wt% surface-modified titanium dioxide. The surface-modified titanium dioxide uses bis[(3-methyldimethoxysilyl)propyl]polyoxypropylene as the organic coating agent. This label film has the advantages of aging resistance and high whiteness, and also exhibits good matte uniformity and whiteness uniformity.

This invention belongs to the field of composite material technology, specifically relating to an epoxy composite material based on hollow glass microspheres as filler and its preparation method. Addressing the challenges of high surface polarity of hollow glass microspheres, poor compatibility with organic resins, and the difficulty of achieving a balance of high strength, high toughness, and aging resistance in existing composite materials, this invention utilizes ultraviolet ozone to synergistically activate glass microspheres, followed by surface modification with tannic acid. Simultaneously, a base epoxy resin, octaepoxypropyl cage-type polysilsesquioxane, and bis(2-aminophenyl)disulfide are mixed. Finally, tannic acid-modified glass microspheres and a curing agent are added to the prepolymer, followed by stepwise temperature curing to obtain the epoxy composite material.