248results about "Light/infra-red/X-rays fibre treatment" patented technology

A method of rendering materials having hard and soft surfaces hydrophilic or more hydrophilic is disclosed. The method involves hydrophilizing such materials by applying a high energy treatment and charged particles and / or one or more hydrophilic polymeric materials with discrete charges to such materials.

Example embodiments relate to stretchable conductive nanofibers including at least one stretchable nanofiber and a conductive layer on a structure of the stretchable nanofiber. The conductive layer may include carbon nanotubes and metal nanoparticles on the surface of the stretchable nanofiber. The carbon nanotubes and metal nanoparticles may form a percolation network. The stretchable nanofiber includes stretchable polymers.

A method of preparing polyurethane prepolymer does not require using a toxic isocyanate monomer (manufactured by harmful phosgene) as a raw material. Epoxy resin and carbon dioxide are used as major raw materials to form cyclic carbonates to be reacted with a functional group oligomer, and then amino groups in a hydrophilic (ether group) or hydrophobic (siloxane group) diamine polymer are used for performing a ring-opening polymerization, and the microwave irradiation is used in the ring-opening polymerization to efficiently synthesize the amino-terminated PU prepolymer, and then an acrylic group at an end is added to manufacture an UV cross-linking PU (UV-PU) oligomer which can be coated onto a fabric surface, and the fabric is dried by UV radiation for a surface treatment to form a washing-resisted long lasting hydrophilic or hydrophobic PU fabric.

A substrate or coating is provided that includes a lipase with enzymatic activity toward a component of a fingerprint. Also provided is a process for facilitating the removal of fingerprints is provided wherein an inventive substrate or coating including a lipase is capable of enzymatically degrading of one or more components of the fingerprint to facilitate fingerprint removal from the substrate or said coating. Applying heat to the substrate or coating increases the rate of fingerprint removal.

The invention discloses an anti-algae anti-aging fishing net prepared from the following components: polystyrene, polyethylene fibers, nylon fibers, MBS resin, an epoxy resin adhesive film, ethylene glycol dimethacrylate, a calcium carbonate powder, an attapulgite powder, dibutyl phthalate and calcium stearate. The prepared fishing net has simple processing technology; ultraviolet intermittent irradiation treatment is carried out in a process of polyethylene fiber treatment, and the prepared fishing net can be allowed to have extremely strong performance of preventing algae attachment; the nylon fibers have the defects that the nylon fibers have poor optical rotation resistance, are prone to yellowing and have the strength decreased when illuminated for a long time by the sun outdoor, so a hexamethylene diamine and maleic anhydride mixture is adopted for treating the nylon fibers, the problems are solved, and the anti-aging ability of the prepared fishing net is greatly improved; and through addition of the treated attapulgite powder, mechanical properties of the fishing net are improved, and the toughness is enhanced.

A substrate or coating is provided that includes a lipase with enzymatic activity toward a component of a fingerprint. Also provided is a process for facilitating the removal of fingerprints is provided wherein an inventive substrate or coating including a lipase is capable of enzymatically degrading of one or more components of the fingerprint to facilitate fingerprint removal from the substrate or said coating. Applying heat to the substrate or coating increases the rate of fingerprint removal.

A process and apparatus for cleaning and disinfection of textiles and the air from viruses, bacteria and spores, and also for purifying from dust, pollen, odors, etc. in which the employment of water and various other cleaning agents and disinfectants as well is not required includes a lock or chamberin which living beings are able to stay, and piece-goods and textiles, etc. are able to be treated as well. Therein, airborne aerosols (droplets, particles, dust) as well as aerosols and microbes, respectively, adhering to the clothing or body and to the product, respectively, are to be treated. The basic principle shall also be applicable to rooms (e.g. waiting rooms) or stables and under cleanroom conditions as well. Various aspects of the invention include plasma generation, producing an ion current from the plasma, ozone generation and activation, sterilization, oxidation and decomposition of gaseous components, and separation of microbes and aerosols and decomposition thereof.

The invention disclosed herein is a system and method for cleaning and sanitizing mattresses infested with insects and bacteria. Specifically, mattresses infested with bed bugs and / or dust mites may be cleaned and sanitized through a series of steps beginning with UV irradiation of the mattress. Next, the mattresses are subject to dry steam of a temperature of approximately 356° F. The mattress is then vacuumed to remove debris and waste. Next the mattress is heated with infrared heaters which produce a temperature of up to 265° F. Finally, the mattress is again vacuumed to remove any remaining debris. The system is mounted on an enclosed trailer so that the system may be transported to a home, hospital, hotel or dormitory to clean and sanitize the mattresses.

The invention discloses a dyeing agent and a process for dyeing real silk by the aid of the dyeing agent. According to the technical scheme, the dyeing agent and the process have the advantages that the problem that existing fiber fabrics contain heavy metal ions after being dyed can be solved; purple sweet potato extract elements, cabbage extract elements and purple perilla extract elements in the dyeing agent do not contain heavy metal ions, effects which are identical to effects of a mordant can be realized by the purple sweet potato extract elements, the cabbage extract elements and the purple perilla extract elements, accordingly, post-dye-uptake fiber fabrics are colorful and attractive on the premise that the dyeing agent and the process are favorable for improving the dye-uptake efficiency of the fiber fabrics, and environmental pollution can be prevented.

The present invention provides novel inflatable and rigidizable support elements, and methods of manufacture and use thereof. In particular, the present invention provides inflatable and rigidizable support elements which find use in rapidly deploying and supporting the wing of an aerial vehicle.

The photocatalytic action of titanium dioxide and the anti-odor activity of undecylenic acid or its compounds are combined in an atmospheric scrubbing or renewal system. The invention consists in placing a filter impregnated with these two substances and exposed to a natural or artificial source of ultraviolet radiation in the path of the air.

The invention relates to a method for preparing a polyacid / macromolecule hybrid nanofiber membrane by using an electrospinning method. The method comprises the following steps: (1) adding an organic macromolecule compound into N,N-dimethylformamide; stirring until the organic macromolecule compound is dissolved completely; then adding WCl6 or MoCl5, and stirring until WCl6 or MoCl5 is dissolved completely to obtain a spinning solution; (2) carrying out electrostatic spinning on the spinning solution to obtain a nanofiber membrane precursor; and (3) carrying out heat treatment on the nanofiber membrane precursor at the temperature of 40-100 DEG C, and then radiating the nanofiber membrane precursor under ultraviolet light to obtain the final product. The sizes of polyacid particles in the prepared hybrid nanofiber membrane are stable, obvious agglomeration is avoided, the polyacid particles are uniformly distributed on the surfaces of fibers, therefore, the color changing speed of the fibers under radiation of the ultraviolet light and the speed of reduction of precious metal and heavy metal ions into metal element are greatly increased, and the effect of removing heavy metal ions in sewage by using the hybrid nanofiber membrane can be achieved to a maximum extent.

The invention discloses a process for improving the use characteristic of linen fiber. The process comprises the following steps: (1) performing cleaning treatment; (2) performing steam explosion treatment; (3) performing alkaline liquid soaking treatment; (4) performing treatment liquid modified soaking treatment; (5) performing irradiation treatment; (6) performing treatment liquid B oxidation soaking treatment; and (7) performing treatment liquid C grafting soaking treatment. The linen fiber is subjected to specific modified treatment operation, and the flexibility, the skin friendliness, the anti-crease property and the like of the linen fiber are effectively improved; meanwhile, the weight, the mechanical strength and the like of the linen fiber are enhanced, and good popularization and use value is achieved.

The invention discloses a sterilization apparatus for a fabric and shoes. The sterilization apparatus of the invention includes an organization member for containing the fabric or shoes. The sterilization apparatus of the invention further includes a light sterilization type member and / or an exsiccating member disposed with the organization member for sterilizing or drying the fabric or shoes.

A process for improving weavability of a yarn comprises a step of application of a chitosan-containing reinforcement product and a later chitosan crosslinking step.

The invention discloses a method for preparing modified aramid fiber / graphene reinforcement. In the method, ultraviolet radiation modified aramid fibers are adopted to be grafted with graphene oxide,graphene is immobilized on the surfaces of the aramid fibers prepared in this way, and the modified aramid fiber / graphene reinforcement is obtained. In this way, the fiber surface roughness is effectively improved, the interface bonding capacity is improved, and by means of the reinforcement, the performance of natural rubber can be obviously improved.

This disclosure provides articles that include functionalized nanoscale fibers and methods for functionalizing nanoscale fibers. The functionalized nanoscale fibers may be made by oxidizing a network of nanoscale fibers, grafting one or more molecules or polymers to the oxidized nanoscale fibers, and cross-linking at least a portion of the molecules or polymers grafted to the oxidized nanoscale fibers. The functionalized nanoscale fibers may be used to make articles.

The invention discloses a vegetable dye dyeing process for worsted wool and cotton fabrics, which comprises the steps of ultraviolet radiation treatment, dyeing, color fixing and the like. In the present invention, ultraviolet light is used to irradiate the worsted cotton fabric to oxidize the cystine on the surface of wool fiber scales in the fabric and break the disulfide bond, which helps to improve the dye adsorption of wool fiber and the diffusion capacity of dye in the fiber In addition, the use of rosin powder as a color-fixing agent can improve the color fastness to soaping and rubbing of dyed fabrics. Specifically, rosin powder can be cross-linked on the fiber surface to form a film, and form a coordination bond with the fiber surface group , Improve the binding force between the fiber and the dye molecule.

A method and apparatus for manufacturing a b-stage pre-preg of resin impregnated paper or non-woven. The method includes irradiating a resin impregnated paper or non-woven with near infra-red (NIR) radiation to at least partially remove solvent by evaporation of the solvent, and to advance cure of the resin, whereby to produce an at least partially dried and at least partially cured b-stage pre-preg. The apparatus includes a resin impregnation station (10) for impregnating a paper or non-woven (5) with resin carried by a solvent, and a heating and curing station (20) having irradiation means (24, 25) to irradiate the impregnated paper or non-woven (5′) with near infra-red (NIR) radiation.

The invention discloses a method for modifying the surface of an aramid fiber, a product thereof and a preparation method of the product. The present invention uses ultraviolet light as the radiation source to irradiate aramid fibers in the air to improve the surface properties of aramid fibers, thereby increasing the interface bonding strength between aramid fibers and natural rubber, and maximizing the use of aramid fibers. Reinforcement effect; radiation modification can stimulate the activity of functional groups on the surface of aramid fibers, and these active functional groups can physically cross-link or chemically react with the natural rubber matrix, thereby increasing interfacial adhesion; and radiation modification can also affect the aramid fibers The surface is etched to increase the roughness of the surface of the aramid fiber, thereby increasing the surface area of ​​the fiber, enhancing the mechanical interlocking of the aramid fiber and natural rubber, and increasing the interface bonding strength between the two. The invention has the advantages of safety, high efficiency, little pollution, low energy consumption, simple equipment and suitable for industrial production, etc., and has good development prospects in the modification of aramid fibers. The preparation method of the invention has simple process and easy operation, and is very suitable for industrial production.

The invention discloses a method to prepare straw fiber / PBAT (poly(butylene adipate-co-terephthalate)) composite based on radiation modification, wherein after a coupling agent is sprayed to straw fiber, the straw fiber is treated by means of radiation modification; the radiation modification process has the advantages of good simplicity, environmental friendliness, and availability for reaction at normal temperature; the straw fiber is treated via radiation modification, surface gloss of the straw fiber is decreased, and surface activity of the straw fiber is improved; by adding the straw fiber to PBAT resin, it is possible to effectively improve straw fiber and PBAT interfacial compatibility. The straw fiber-reinforced PBAG composite prepared herein has improved mechanical properties andhas a wider applicable range.

The invention relates to a photo-thermal low-temperature anti-icing pasting pad. The pasting pad comprises a functional film layer and a viscose layer, wherein the functional film layer comprises a base film, a photo-thermal layer, a self-repairing super-hydrophobic layer and a silver nanowire layer; the photo-thermal layer is arranged on the base film, the self-repairing super-hydrophobic layer is arranged on the photo-thermal layer, and the silver nanowire layer is arranged on the self-repairing super-hydrophobic layer. According to the photo-thermal low-temperature anti-icing pasting pad, the anti-freezing protection of outdoor running equipment and instruments can be realized, and the rapid deicing of the surface after the attacking of ice, snow and freezing rain can be realized.

A process is described for modifying polymeric surfaces. The process is particularly useful for modification of polyesters, and can be used to impart surface functionality that confers antimicrobial, anti-soiling, or other desirable properties to the polymer. The process comprises the steps of exposing a polymeric substrate to deep UV irradiation, followed by reaction with a grafting agent. In preferred embodiments, a vapor-phase grafting agent undergoes covalent reactions with the UV-modified polymer surface to produce a polymer with improved properties.

The invention relates to a crosslinking type aromatic polyimide material containing methyl and having a main chain containing carbonyl and a preparation method thereof, which belongs to the technical field of synthesis of high molecular materials. A preparation process comprises the following steps: introducing a structure similar to diphenylketone and methyl into a polyimide molecular chain; synthesizing cross-linkable polyimide which contains the methyl and has the main chain containing the carbonyl and carrying out cross-linking treatment; specifically, taking a dianhydride monomer and a diamine monomer with the equal molar ratio as raw materials and synthesizing polyamic acid; carrying out spinning (or film preparation), imidization and cross-linking processes; finally, obtaining the crosslinking type aromatic polyimide material. The crosslinking type aromatic polyimide material prepared by the preparation method has high molecular weight and good mechanical properties and has excellent heat stability and mechanical properties, good solubility, good film-forming property and good spinnability, relatively low water absorption rate and special optical properties; a final shape of the product can be fiber and also can be thin film and the product has a wide application field.