12 results about "Fibre coating" patented technology

This invention relates to a method, apparatus, and packaging structure for in-situ packaging of fruits and vegetables using blown fiber spinning, addressing the current issues of efficiency and effectiveness in the use of nanofibers in fruit and vegetable packaging. This method selects carboxymethyl chitosan (CMCH) and polycaprolactone (PCL) as base materials, and uses SBS technology to directly deposit CMCH / PCL nanofibers layer by layer onto the surface of fruits and vegetables, forming a tightly adhered and stable fiber coating. The apparatus in this invention uses spiral-patterned conveyor rollers to simultaneously transport fruits and vegetables while performing blown spinning, achieving rapid and continuous in-situ packaging of fruits and vegetables. The in-situ packaging of this invention can be easily peeled off by hand, and it also serves as an excellent carrier for active substances, effectively inhibiting gray mold in fruits and vegetables. The in-situ packaging film forms a barrier on the surface of fruits and vegetables, reducing weight and hardness loss and delaying the ripening period after harvest.

This invention discloses a food-grade antibacterial packaging paper based on biomass conversion and its preparation method, relating to the field of papermaking technology. The packaging paper uses areca leaf mechanical pulp rich in lignin and natural phenols as a substrate. After alkali treatment and oxidase activation of the phenolic hydroxyl groups on the fiber surface, a chitosan-tea polyphenol layer is coated onto its surface, followed by ionic crosslinking and interfacial co-crosslinking with phytic acid to construct a dense fiber-coating network structure. This improves the paper's mechanical strength, water and oil resistance, and inhibition of common pathogenic bacteria while maintaining its renewability, biodegradability, and food contact safety.

The application discloses a heat-resistant polytetrafluoroethylene sewing thread and a preparation method thereof. The heat-resistant polytetrafluoroethylene sewing thread comprises a wear-resistant layer, a tensile layer and a thread core. The thread core is composed of first polytetrafluoroethylene fibers, second polytetrafluoroethylene fibers and shaped fibers. The thread core is provided with the shaped fibers, and the outer surface layer of the shaped fibers is interwoven with the first polytetrafluoroethylene fibers and the second polytetrafluoroethylene fibers. The outer surface layer of the thread core is provided with the wear-resistant layer, and the wear-resistant layer is provided between the tensile layer and the thread core. The outer surface layer of the first polytetrafluoroethylene fibers and the second polytetrafluoroethylene fibers is resistant to high temperature and has good heat insulation effect by using a ceramic fiber coating as a heat insulation coating. The prepared thread core has a flame-retardant effect. The wear-resistant layer is a polyurethane fiber material layer, which is resistant to wear and tear and is not easy to break. The surface of the thread body is easy to clean. The polytetrafluoroethylene sewing thread prepared by the heat-resistant polytetrafluoroethylene sewing thread and the preparation method thereof is non-toxic, harmless, environmentally friendly, not easy to corrode and durable.

A fibre comprising a core made of a fiberisable material and having an outer surface is described. the fibre further includes an external coating including a mixture of hexagonal boron nitride and bentonite, in a proportion of at least 10% by weight of bentonite relative to the total weight of the external coating. An optical component comprising one or more of the optical fibre is also described, along with a method for manufacturing a pasty composition for a fibre coating.

The invention discloses a hard carbon fiber coating resistant to high-temperature oxidation and a preparation method thereof.The preparation method comprises the steps that a step-by-step technology of low-temperature vapor deposition of an inner layer and high-energy sputtering of an outer layer is adopted, and a heterogeneous composite structure of a silicon nitride compact layer and a tantalum silicide self-repairing layer is constructed on the surface of carbon fiber; the inner layer blocks oxygen permeation by using low oxygen diffusion coefficient and high-temperature stability of Si3N4, the outer layer realizes dynamic protection through a composite oxide film formed by high-temperature oxidation of TaSi2, and the inner layer and the outer layer form gradient transition through mutual diffusion of interface elements, so that oxidation-protection-self-repairing closed loop is realized, and wide-temperature-range protection is realized; the blank that the protection performance of the existing coating is suddenly reduced at the temperature of over 1600 DEG C is filled According to the method, the Si3N4 inner layer is firstly deposited, and the TaSi2 outer layer is subjected to high-energy sputtering according to the progressive design of substrate protection, strengthened combination, gradient transition and functional closed loop in sequence, so that the carbon fiber coating with the advantages of reserved fiber strength, stable interface, high-temperature oxidation resistance, hardness, wear resistance and collaborative optimization of various properties is obtained.

The present invention relates to a cellulose fiber-based coated fabric and a manufacturing method therefor and, more specifically, to a cellulose fiber-based coated fabric and a manufacturing method therefor, wherein the cellulose fiber-based coated fabric does not contain harmful components and thus is not only eco-friendly, but also has excellent antifouling properties and excellent fastness, pilling resistance, snag resistance, elongation recovery rate, and bursting strength, and a low drape coefficient.

The application belongs to the technical field of corrosion monitoring and intelligent self-repairing coating, and particularly relates to a self-warning and self-repairing electrospinning core-shell fiber coating material responding to aggregation-induced emission and a preparation method and application thereof. The material is formed in a shell-core form by a fiber shell material and a fiber core material; the fiber core material contains an aggregation-induced emission self-warning agent and a water environment self-repairing material, and the fiber shell material contains a non-Newtonian fluid polymer material. The intelligent fiber coating provided by the application has the advantages of simple preparation process, high loading rate and high repair efficiency, and has the integrated functions of self-warning and self-repairing, and has high practical value for electrospinning technology in the field of marine corrosion prevention nano coating.

The utility model discloses a kind of glass fibre coating cloth processing's spraying device, it is related to spraying device technical field;And the utility model includes base, the top surface of base is provided with closed spraying cabin, the top surface of closed spraying cabin is fixedly connected with liquid storage tank, the bottom surface of liquid storage tank is provided with spraying head, and spraying head is located in the cabin of closed spraying cabin, one side of closed spraying cabin is provided with dust removal tank, the other side of closed spraying cabin is provided with infrared heating tube protective shell, the inside of dust removal tank is provided with centrifugal fan, the bottom surface of dust removal tank is fixedly connected with convex shell, the bottom surface of convex shell is provided with openwork hole, the top of dust removal tank is provided with filter box;The utility model can effectively improve coating adhesion, improve spraying quality, and can reduce coating outflow when spraying, to reduce the environmental pollution of work area, and can timely pre-solidification to glass fibre cloth after spraying, to be reeled.

The utility model belongs to the technical field of engine valve body bushings, and particularly relates to a high-temperature-resistant engine valve body bush which comprises a base layer, a nickel-chromium alloy coating is arranged on the surface of the base layer, a cobalt-based alloy coating is arranged on the surface of the nickel-chromium alloy coating, and the cobalt-based alloy coating is arranged on the surface of the nickel-chromium alloy coating. A silicon carbide coating is arranged on the surface of the cobalt-based alloy coating, a molybdenum alloy coating is arranged on the surface of the silicon carbide coating, a ceramic fiber coating is arranged on the surface of the molybdenum alloy coating, an aerogel coating is arranged on the surface of the ceramic fiber coating, and a mica coating is arranged on the surface of the aerogel coating. According to the high-temperature-resistant engine valve body bush, through cooperation of the nickel-chromium alloy coating, the cobalt-based alloy coating, the silicon carbide coating, the molybdenum alloy coating, the ceramic fiber coating, the aerogel coating and the mica coating, the engine valve body bush has high heat insulation and high-temperature-resistant performance, and then the engine valve body bush can stably work in the high-temperature environment.

The utility model relates to the technical field of aluminum foil bags, in particular to a high-barrier aluminum foil bag which comprises a bag body, a sealing strip is connected to a bag opening of the bag body, a fiber coating is sprayed to the upper end of the interior of the bag body, a PP woven cloth layer is connected to the upper end of the interior of the bag body, and latticed reinforcing ribs are connected to the bottom end of the bag body. Aluminum sheet reinforcing sheets are connected to the four corners of the bottom end of the bag body. The strength of the bottom of the bag body is enhanced through the fiber coating and the PP woven cloth layer, the puncture resistance is improved, the strength of the four corners of the bottom of the bag body is enhanced through the aluminum sheet reinforcing pieces, and the portions prone to impact are reinforced, so that when articles are placed in the bag body, the bottom end of the bag body cannot be punctured, and the service life of the bag body is prolonged. And the latticed reinforcing ribs improve the tear resistance of the bottom of the bag body, increase the rigidity of the material and reduce bending deformation.

A serration balloon can have a number of different components and can be made in a number of different manners. One or more longitudinally extending members with periodic raised wedges can be attached to a medical balloon. They can be attached with a fiber coating, a polymer coating, or other methods. A polymer matrix can be used to bond the longitudinally extending member to the surface of the balloon. The fiber coating can be, for example, a thread or mesh that secures the longitudinally extending member to the balloon. The medical balloon can be an angioplasty balloon, such as an off-the-shelf angioplasty balloon.

The invention discloses a soluble hemostatic amphotericin B grafted cotton yarn dressing and a preparation method thereof, and relates to the technical field of biomedical materials. According to the soluble hemostatic amphotericin B grafted cotton yarn dressing, soluble cotton yarn with the etherification degree being 0.3-0.5 serves as a substrate, and a double-response medicine grafting layer and a functional coating are sequentially constructed on the soluble cotton yarn. The method comprises the following steps: performing citric acid crosslinking and plasma activation on cotton yarns; covalently grafting the synthesized dual-response intelligent linker on the activated cotton yarn to obtain a dual-response drug grafting layer; finally, a quaternized chitosan / catechol modified hyaluronic acid nanofiber coating is deposited on the surface through electrostatic spinning, and the functional coating is obtained. The soluble hemostatic amphotericin B grafted cotton yarn dressing prepared by the invention has the advantages of rapid hemostasis, intelligent controlled drug release and good biocompatibility and degradability, and is especially suitable for treatment of complex infected wounds.