15results about How to "Prevent photoaging" patented technology

The invention relates to an antibacterial PP material and a preparation method thereof, and belongs to the technical field of high polymer materials. The antibacterial PP material is prepared from the following components in parts by weight: 60 to 80 parts of PP resin, 2 to 4 parts of a surfactant, 0.5 to 1.5 parts of a modified antibacterial agent, 0.5 to 1.5 parts of a flame retardant and 0.2 to 0.8 part of an antioxidant, titanium ions in the modified antibacterial agent destroy bacterial cell walls, quaternized intermediate products react with proteins of cell membranes to accelerate bacterial death, and in addition, phenolic hydroxyl groups absorb ultraviolet rays with different wavelengths to inhibit the light aging process; a compact and continuous carbon layer is formed during combustion of the flame retardant and cooperates with phosphorus-oxygen double bonds and melamine, the flame retardant efficiency is improved, aluminum hydroxide coats the surface, hydroxyl is subjected to heat absorption decomposition during combustion, the surface temperature of combustible materials is stabilized, meanwhile, an inert aluminum oxide layer is formed, and the flammability is reduced. The antibacterial PP material prepared by the invention not only has good antibacterial and anti-aging effects, but also has excellent flame retardant property.

The embodiment of the invention discloses a skin care substance, polypeptide and application thereof, the polypeptide can be used for solving the technical problem of light aging resistance, and the amino acid sequence of the polypeptide is shown as SEQ ID NO: 4, namely SEQ ID NO: 4: RRIIRRRWLR.

The invention discloses an anti-aging composition for preventing light aging and application thereof, the anti-aging composition comprises a Rosa rugosa extract, a Caesalpinia spinosa fruit extract, a sunflower bud extract and a Pseudoalteromonas fermentation product extract, and the anti-aging composition can be added into various skin care products to reduce cell damage caused by light radiation such as ultraviolet light, infrared light and blue light; in sunscreen cosmetics, the sunscreen effect can be improved, the use amount of chemical sunscreen agents and physical sunscreen agents is reduced, and the safety and mildness of the sunscreen cosmetics are improved; damage caused by optical radiation is effectively prevented, meanwhile, skin elasticity is improved, skin wrinkles are reduced, and the effect of resisting skin photoaging is achieved. The effectiveness of the composition is proved through a large number of experiments, each component is irreplaceable, the addition range of the composition is also an optimal range, and the effect and cost of the composition are both the optimal range.

The invention discloses a straw powder filled biodegradable composite material and a preparation method thereof, and relates to the technical field of biodegradable composite materials, the preparation method of the biodegradable composite material comprises the following steps: S1, pretreating straw; s2, impurities are removed through winnowing; s3, removing magnetic impurities; s4, cleaning and drying; s5, performing high-pressure steam treatment; s6, drying in the oven and crushing again; s7, adding into a high-speed mixer and mixing; s8, extruding the biodegradable composite material, and cooling and shaping the biodegradable composite material; and S9, cutting and polishing are conducted, and performance testing is conducted. The biodegradable composite material is prepared from agricultural waste, waste accumulation is reduced, sustainable development is promoted, the straw powder filled biodegradable composite material has biodegradability, high strength and good processability, and the straw powder filled biodegradable composite material is suitable for large-scale production. The problems of reducing agricultural wastes, enhancing mechanical properties and environmental protection performance, improving processability and reducing raw material cost can be solved.

The embodiments of the present application disclose a skin care product, a polypeptide and uses thereof. The polypeptide can be used to solve the technical problem of anti-photoaging. The amino acid sequence of the polypeptide is shown in SEQ ID NO: 4, SEQ ID NO: 4: RRIIRRIRRWLR.

The invention relates to an automotive anti-aging recycled polypropylene composite material with good appearance and a preparation method thereof, and the automotive anti-aging recycled polypropylene composite material with good appearance is prepared from the following components in percentage by weight: 10%-90% of a recycled polypropylene mixture, 5%-70% of polypropylene, 1%-25% of a toughening agent, 1%-22% of a filler, 0.2%-0.5% of a weather-proof agent, 0.1%-0.8% of an antioxidant and 0.1%-0.2% of a long-acting antioxidant, 0.1%-1.5% of modified epoxy resin, 0.1%-1.0% of metal deactivator and 0.1%-0.25% of metal carbonate hydrate. The automotive anti-aging recycled polypropylene composite material with good appearance has good heat aging resistance and light aging resistance, has no bad phenomena such as pocking marks, bumps and the like, and meets the use requirements of automobiles.

The application discloses collagen tripeptide and a preparation method and application thereof, and belongs to the technical field of bioengineering. The preparation method comprises the following steps: obtaining bacillus velezensis with high collagenase yield through separation and identification, the bacillus velezensis belongs to probiotics, and high-activity collagenase is obtained through fermentation culture and purification; taking shark cartilage or blue fish skin as raw materials, and obtaining collagen tripeptide through the following steps of combined enzymolysis of alkaline protease and collagenase after pretreatment, inactivation, centrifugal separation and freeze-drying. The collagen tripeptide prepared by the application has a molecular weight of less than 500 Dalton, contains active components such as GHK tripeptide, is easy to absorb and has high safety, and can be used for preparing antioxidant products, anti-inflammatory products, memory-enhancing products or immunity-enhancing products. The application solves the problems of unsafe collagenase source and low collagen tripeptide preparation efficiency, and has a good industrial application prospect.

The embodiment of the invention discloses a polypeptide, a skin care substance and application, the polypeptide can be used for solving the technical problem of light aging resistance, the amino acid sequence of the polypeptide is as shown in any one of SEQ ID NO: 1-3, and SEQ ID NO: 1: KRIIKRIKLLR; sEQ ID NO: 2: KRIIRRIKRLLR, and SEQ ID NO: 2: And SEQ ID NO: 3: RRIIRRIRLLR, which is shown in the description.

This invention discloses an impact-resistant polyethersulfone composite material and its preparation method. A modified polymer and a modified filler are melt-blended, and a pretreated film is prepared using a blown film process. The pretreated film and a modified nonwoven fabric are then laminated and hot-pressed to obtain the impact-resistant polyethersulfone composite material. The modified polyethersulfone is formed by the stepwise polymerization of 4,4'-difluoro-diphenyl sulfone and a dihydroxy monomer, and then hindered amine structures are grafted onto the molecular side to obtain the modified polymer. The hindered amine structures can capture free radicals, improving the material's anti-aging properties, while the disulfide bond structure can absorb energy when the material is impacted, enhancing its impact resistance. A modified filler is prepared by coating a composite filler formed from TiO2 and CeO2 with silica, which can efficiently absorb and convert ultraviolet light, improving the material's anti-aging properties. Simultaneously, the interlayer nonwoven fabric structure effectively prevents cracks from directly penetrating to adjacent layers, enhancing the material's impact resistance.

The invention belongs to the technical field of oil paints, and discloses an anti-aging and anti-cracking water-based oil paint, which is prepared from the following components in parts by mass: 15 to 30 parts of pigment, 15 to 25 parts of modified linseed oil, 30 to 55 parts of acrylic resin emulsion, 0.5 to 1 part of PH regulator, 0.5 to 1.5 parts of thickening agent, 1 to 3 parts of nano filler, 0.2 to 0.6 part of anti-aging agent, 0.1 to 0.3 part of preservative and 10 to 20 parts of water. The modified linseed oil is formed by carrying out graft modification on linseed oil and an acrylate monomer; the acrylic resin emulsion is a specific monomer copolymer. Through the synergistic compatibility of the acrylate modified linseed oil and the acrylic resin emulsion, and in combination with the nano filler and the composite anti-aging agent system, the pigment film has good flexibility, uniform film-forming property and structural stability under a thick coating condition, meanwhile, the oxidation resistance and yellowing resistance are improved, and the generation of cracks is effectively inhibited. The oil paint has both aging resistance and cracking resistance.

The invention belongs to the field of cosmetics, and discloses a pure zinc oxide sunscreen lotion containing recombinant collagen Recomtein AAG and capable of resisting photoaging and a preparation method thereof. The sunscreen lotion is prepared from a physical sunscreen agent, a light stabilizer, an emulsifier, an emollient, a dispersing agent, a thickening agent, a humectant, a preservative, an emulsion stabilizer, a chelating agent, a biological protection component and the balance of water, the physical sun-screening agent is zinc oxide subjected to surface treatment by triethoxyoctylsilane; the biological protection component is prepared from a highland barley fermentation liquid Supferm HIBY-PLUS (HydroxyIBY-Polylactic Acid) and a Recomtein AAG (Adenosine Adenosine Adenosine). The light stabilizer is added into the sunscreen cream, so that a relatively high sunscreen value is achieved by using less sunscreen agents, the amount of the sunscreen agents is less, correspondingly, heavy grease is also less, and the skin feeling is lighter and thinner.

The utility model provides a tooth socket cleaning box and a tooth socket. The tooth socket cleaning box comprises a turbulent flow mechanism, an upper cover and a lower cover, the upper cover is arranged on the lower cover in an opening and closing mode, and a containing space is defined by the upper cover and the lower cover. A placing groove is formed in the lower cover and is used for bearing an external tooth socket; one end of the turbulent flow mechanism is mounted on the upper cover, and the other end penetrates through the upper cover and extends into the accommodating space; when the external tooth socket is cleaned, disinfectant is contained in the containing space, and the liquid level of the disinfectant is lower than the bottom end of the upper cover and higher than the bottom end of the turbulent flow mechanism. The turbulent flow mechanism is used for stirring the disinfectant. According to the utility model, the tooth socket is cleaned by adopting disinfectant instead of non-ultraviolet light, so that the phenomenon of light aging of the tooth socket can be avoided, and besides, the tooth socket is also provided with a turbulent flow mechanism which can stir the disinfectant in the accommodating space, so that the effect of enabling the disinfectant to be in full contact with the tooth socket is achieved, and the service life of the tooth socket is prolonged. The disinfection and sterilization effects on the tooth socket are greatly improved.

The present invention relates to the technical field of daily chemical products, and specifically provides a composition containing osmanthus extract with whitening and soothing effects, a facial mask, and a preparation method. The composition of the present invention comprises, by mass, 10 to 30 parts of osmanthus extract, 10 to 30 parts of white tea polysaccharides, and 10 to 30 parts of ceramide; the solid content of the osmanthus extract is 3 to 5 mg / mL. Compared with the prior art, the present invention creatively combines osmanthus extract, white tea polysaccharides and ceramide, and achieves better antioxidant and anti-inflammatory effects through the synergistic effect of each component, solving skin problems caused by ultraviolet rays and blue light.

The present invention relates to the technical field of polymer materials, and in particular to a PC / GF composite LED kit and a preparation method thereof. The kit comprises polycarbonate, glass fiber, modified silicon-based flame retardant, phosphate, light stabilizer, light diffuser, antioxidant, and lubricant; wherein the raw materials for preparing the modified silicon-based flame retardant include octahydrogen cage-shaped silsesquioxane, unsaturated sulfonate, and initiator. The LED kit prepared by melt blending the prepared modified silicon-based flame retardant with polycarbonate and glass fiber through addition reaction of the silicon-hydrogen bond in the octahydrogen cage-shaped silsesquioxane and the carbon-carbon double bond in the unsaturated sulfonate has good flame retardant effect, and the flame retardant performance of the material is further improved through the synergistic effect of the phosphate and the modified silicon-based flame retardant.

The invention provides a stainless steel foil surface waterproof roll and a preparation method and application thereof, and belongs to the technical field of waterproof materials. The stainless steel foil surface waterproof coiled material sequentially comprises a stainless steel foil, an epoxy modified bonding transition layer, a modified glass fiber base, modified asphalt and a high-molecular polymer film from top to bottom, and the modified glass fiber base is obtained by modifying the glass fiber base through an epoxy modified bonding agent. Through a multi-layer composite structure of the stainless steel foil, the epoxy modified bonding transition layer, the modified glass fiber base, the modified asphalt and the high-molecular polymer film, a chemically compatible and physically entangled reinforced interface is constructed, and the key problems that a traditional metal surface waterproof roll is weak in interlayer bonding and easy to peel off are cooperatively solved; the overall performance of the waterproof roll is remarkably improved.