80results about How to "Good barrier effect" patented technology

The invention discloses eye tightening essence and a preparation method thereof, and belongs to the field of daily chemicals. The eye tightening essence comprises the following components of, in percentage by mass, 0.1 %-1 % of plant extract and 1 %-5 % of polypeptide mixture, wherein the plant extract is a mixture of kappaphycus alvarezii extract and caesalpinia spinosa fruit extract, and the polypeptide mixture is a mixture of palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7. According to the eye tightening essence, the components are safe and non-irritant, the plant extract and polypeptide are compounded, and a specific dosage ratio is selected, so that a synergistic effect is achieved in the aspect of tightening effect, and meanwhile, good instant and long-acting wrinkle removing functions are achieved; and the dosage of peptides in the cosmetic is greatly reduced, so that the safety of long-term use of the product is improved, and the stability of a cosmetic system can be effectively ensured.

The invention relates to antistatic and anti-corrosive paint and a preparation method of the paint, and belongs to the technical field of paint. A lamellar structure is prepared; hydrotalcite with specific surface area, lamellar exchange density and chemical inertness absorbs monoalkyl ether phosphate into interlayers; gelatin and chitosan are cross-linked for enclosing to achieve the purpose of slow release; monoalkyl ether phosphate and inorganic filling are combined for use to combine an antistatic effect and an anti-corrosive effect; a function of a coating is effectively improved; when phosphate molecules are contacted with the surface of a material, hydrophobic chains in the molecules are absorbed on the surface of the material to form a continuous absorption layer; a hydrophilic group of phosphate faces towards air; since the molecules of phosphate contains -OH, phosphate can form a hydrogen bond with water molecules; an absorbed water layer can form a conductive film; the surface conductivity of the material is improved, so that static charge accumulation on the surface of the material is reduced; a seepage path of oxygen molecules to reaching the surface of a matrix is prolonged; the paint has an excellent barrier property; and an anti-corrosive property is improved.

The invention discloses an antibacterial wear-resistant runway floor composite material which comprises the following components in parts by weight: 0.5-2 parts of an ultraviolet stabilizer, 0.2-1 part of an antioxidant, 10-30 parts of a reinforcing agent, 2-10 parts of antibacterial composite microspheres, 50-80 parts of a base material, 1-5 parts of a dispersing agent and 2-7 parts of a cross-linking agent. Melting, mixing, extruding and granulating are performed by adopting double screws or three screws, so as to obtain the antibacterial and wear-resistant composite material for the track spliced floor. The runway spliced floor composite material prepared by the method has good long-acting self-cleaning and antibacterial properties, wear resistance and impact resistance, good ultraviolet resistance and aging resistance and good fireproof and flame-retardant properties, and a spliced floor with a personalized complex structure can be produced by adopting a 3D printing manufacturing and forming process.

The invention relates to a preparation method for an anticorrosion iron-coating film, belonging to the technical field of metal coating films. According to the invention, a corrosion inhibitor is prepared by reacting ascorbic acid with phytic acid; since the ascorbic acid has the characteristics of low toxicity or non-toxicity and low price, and oxygen atoms in molecules thereof have strong electron donating ability, a firm adsorption protective film can be formed on a metal surface, and can stably exist under alkaline conditions; after bonding of the ascorbic acid with the phytic acid, when phosphate molecules contacts with the surface of a material, hydrophobic chains in the molecules are adsorbed on the surface of the material so as to form a continuous adsorption layer, and hydrophilicgroups thereof face air; since the molecules contain -OH, the molecules can form hydrogen bonds with water molecules, and an adsorbed water layer forms a conductive film, so the surface conductivityof the material is enhanced, static charge accumulation on the surface of the material is reduced, and an infiltration path which oxygen molecules takes to reach the surface of a substrate is extended; and the anticorrosion iron-coating film has excellent barrier properties, improved corrosion resistance, and good application prospects.

The invention relates to the field of medical apparatuses and instruments, in particular to an X-ray protection device applied to an angiography machine. The X-ray protection device applied to the angiography machine comprises a telescopic pipe and a blocking piece mechanism. In the X-ray protection device applied to the angiography machine, the X-ray machine emits X-rays from an emitting port, the X-rays pass through an operating table and are received by a receiving port, and when the X-rays are emitted from the emitting port, very big outward diffusion phenomena are produced due to the distance between the emitting port and receiving port. Therefore, the emitting port and the receiving port are respectively connected with the telescopic pipe, the telescopic pipe guides a route of the X-rays, the outward X-ray diffusion phenomena are greatly decreased, and accordingly injury to a medical worker is avoided. The blocking piece mechanism is located in the front of the X-ray machine, can be move relative to the X-ray machine and block X-ray refraction on a patient and outward X-ray radiation, and accordingly the injury to the medical worker is avoided. The X-ray protection device is simple in structure, convenient to operate, good in blocking effect and good in practicability.

The invention discloses a photo-cured degradable composite guided bone regeneration membrane as well as a preparation method and application thereof. The guided bone regeneration membrane consists of biodegradable polyester, collagen, magnesium powder or zinc powder and a photoinitiator, wherein the collagen is fully soaked by the biodegradable polyester and then forms an interpenetrating network structure with the collagen, and the guided bone regeneration membrane has good shaping property before photo-curing and can adapt to the form of bone defects; after photo-curing, the degradable composite guided bone regeneration membrane has certain supporting performance and can maintain a space required by bone regeneration; meanwhile, the collagen membrane is wrapped by the biodegradable polyester, so that the degradation speed of the collagen is reduced, the action time of the guided bone regeneration membrane is prolonged, and sufficient time is provided for bone repair; and the addition of the magnesium powder or the zinc powder can promote the improvement of the biocompatibility of a material and improve the bone regeneration promoting capacity of the guided bone regeneration membrane. The guided bone regeneration membrane is a novel guided bone regeneration membrane which has supporting and barrier effects and can promote bone tissue regeneration.

A material for packaging a nicotine containing product comprising a polymer based on dimethyl-2,6-naphthalene dicarboxynate or 2,6-naphthalene dicarboxylic acid monomers, such as polyethylene naphtalate (PEN) or polytrimethylene naphtalate (PTN), or a liquid crystal polymer (LCP). The material may be laminated to another polymer or to metal foil.

A material for packaging a nicotine containing product comprising a polymer based on dimethyl-2,6-naphthalene dicarboxynate or 2,6-naphthalene dicarboxylic acid monomers, such as polyethylene naphtalate (PEN) or polytrimethylene naphtalate (PTN), or a liquid crystal polymer (LCP). The material may be laminated to another polymer or to metal foil.

A novel active carbon fiber biological function dressing is composed of a wrapping layer and an active carbon fiber pasting core, wherein the wrapping layer is composed of medical adhesive tape which is high in breathability and release paper, the active carbon fiber pasting core is formed by spraying biological compatilizer on the surface of active carbon fiber, and the specific area of the active carbon fiber pasting core ranges from 1000 m<2> / g to 3000 m<2> / g. The targeting adsorption effect and the restorative treatment effect are achieved according to the physical principle. The novel active carbon fiber biological function dressing has strong adsorption power during targeting adsorption treatment, secreta of the surface of a wound can be rapidly and effectively adsorbed, the outer layer of the dressing is still kept dry, the growth and propagation environment of bacteria is damaged, bacteria are prevented from colonization on the surface of the wound, and the surface of the wound is dried and converged in the state that the surface of the wound is isolated from the external world; alpha-cyanoacrylate has the effects on promoting hemostasis and concrescence of the wound, and therefore the dressing can accelerate the concrescence process of the surface of the wound, the infection rate is lowered, and the concrescence time is shortened.

The invention belongs to the technical field of computers, and particularly relates to a dustproof noise reduction case used for a desktop. The dustproof noise reduction case used for the desktop comprises a case body, wherein the bottom of the case is provided with a base; the side parts of the case body are provided with panels; the panels are vertically adjoined to a case cover positioned on the side part of the case body. The dustproof noise reduction case is characterized in that the case cover comprises an inner case cover and an outer case cover, wherein the inner case cover is arranged in the case body and is matched with the shape of the case body; the outer case cover and the case body are fixedly connected by bolts; the inner case cover is tightly pressed between the outer case cover and the case body; the outer case cover comprises a cover plate part and edge parts fixedly connected with the cover plate part; the edge parts are positioned on the upper end and the lower end of the cover plate part; an upper air flue and a lower air flue are respectively formed between the edge parts and the upper edge of the case body as well as between the edge parts and the lower edge of the case body; the cover plate part has the same size as the inner case cover; one side, which is near the case body, of the inner case cover is provided with a cooling structure containing cavity. The dustproof noise reduction case has the beneficial effects that dust in the air can not easily enter the case so as to avoid influence on the use performance of electrical apparatus elements in the case, and the dust prevention and noise problems of the computer are almost solved.