74results about How to "Tough texture" patented technology

The invention relates to the technical field of medical apparatus. The generation of ventilator-associated pneumonia is the result of the inspiration of secretion with pathogen, wherein the bacterialcontamination in a ventilator air tube is also a principal element for causing the ventilator-associated pneumonia. The invention aims to provide a manual tracheotomy tube with broad spectrum of antimicrobial activity and controllable slow-release medicaments, comprising a flexible tube body and a tampon system attached to the outside of the tube body, wherein the inner surface and the outer surface of the tracheotomy tube are combined with macromolecular polymer antimicrobial coatings in which medicaments with pharmacologic effect are loaded. The invention not only achieves the efficacy of providing air paths for a traditional tracheotomy tube and keeping the respiratory tract smooth, but also has excellent bacteriostatic effect and the slow release effect of the controllable medicaments,thereby providing a wide application prospect for clinical application of the manual tracheotomy tube.

The present invention adopts the sisal hemp fiber as fiber raw material, and uses the nonwoven fabric of thermoplastic resin PP, film, powder material and its fiber as resin base body, and adopts thefollowing steps: pretreating sisal hemp fiber and making it into fiber felt, hot-pressing and forming, selecting and using a certain number of fiber felts, delaminating and sand wiching pp nonwoven fabric or film, under the condition of a certain temp. and pressure hot-pressing and forming or mixing PP fiber (PP powder) directly with sisal hemp fibre, making them into fiber felt and then hot-pressing and forming so as to obtain the invented sisal hemp fiber reinforced polypropylene composite material.

In order to solve the problem of environmental pollution of the conventional coating, the invention provides a novel nano sterilizing anionic double-component aqueous wood finishing paint and a preparation method thereof. The nano sterilizing anionic double-component aqueous wood finishing paint provided by the invention comprises a component A and a component B, wherein the component A comprises the following components in part by weight: 65 to 90 parts of acrylic resin, 0.2 to 0.4 part of antifoaming agent, 0.4 to 0.6 part of composite nano anionic powder, 0.1 to 0.3 part of dispersant, 0.5 to 1.5 parts of thickening agent and 15 to 25 parts of water; and the component B comprises the following component in part by weight: 40 to 60 parts of water-dispersed polyisocyanate, wherein the weight of the component A is 1.5 to 2.5 times that of the component B. The nano sterilizing anionic double-component aqueous wood finishing paint has the technical advantages of environmental protection, strong sterilization and mildew prevention, capability of constantly releasing anions and purification and indoor air.

The invention discloses a preparation method of a vertical mill roller made of ordinary cast iron-based ceramic composite material. Provided is a method for preparing a vertical mill roller made of ordinary cast iron-based ceramic composite material, which is beneficial to the impregnation of high-chromium cast iron in molten iron, one-time pouring molding, simple process implementation, adjustable composite layer shape and thickness, and improved wear resistance. It includes the following steps: 1) Select 2-4mm fused zirconia corundum particles; 2) Prepare the arc-shaped honeycomb zirconia corundum ceramic particle preform from the above fused zirconia corundum particles, and cool it for use; 3) Arrange the prepared preforms side by side Place it on the arc surface of the sand mold cavity of the vertical mill roller, and fix it with the core support; 4) After closing the box, use a hot air blower to preheat the cavity, then cast it, and take it out of the box; 5) Put the above The obtained iron-based ceramic composite material vertical grinding roller is subjected to heat treatment. The invention has simple process; the composite grinding roller is formed by one-time pouring; the production process can realize mechanized operation, the production cost is low, and the production efficiency is high.

The preparation process of brake gasket includes the following steps: preparing sisal fiber via cutting sisal into 10-20 mm long segment, soaking in anhydrous alcohol plus benzene solution, washing with anhydrous alcohol and deionized water, boiling in NaOH solution, cooling to room temperature, washing with deionized water to neutrality and stoving in stove; mixing sisal fiber, phonetic resin, copper powder, graphite powder, MoS2, pre-polymer, metal oxide, butadiene-acrylonitrile rubber, non-metal compound and barium sulfate in a high speed mixer to form mixture material; making blank with the mixture material; hot pressing the blank to form; and heat treatment at 190-200 deg.c. The present invention makes asbestos-free brake gasket with sisal fiber as reinforcing material, and the brake gasket has stable friction coefficient, less heat degradation, low wear, no couple wear, smooth braking, low noise and no environmental pollution.

In order to solve the problem of environmental pollution of the conventional coating, the invention provides a novel nano anionic double-component aqueous wood finishing paint and a preparation method thereof. The double-component aqueous wood finishing paint provided by the invention comprises a component A and a component B, wherein the component A comprises the following components in part by weight: 65 to 90 parts of acrylic resin, 0.2 to 0.4 part of antifoaming agent, 0.4 to 0.6 part of composite nano anionic powder, 0.1 to 0.3 part of dispersant, 0.5 to 1.5 parts of thickening agent and 15 to 25 parts of water; and the component B comprises the following component in part by weight: 40 to 60 parts of water-dispersed polyisocyanate, wherein the weight of the component A is 1.5 to 2.5 times that of the component B. The nano anionic double-component aqueous wood finishing paint has the technical advantages of environmental protection, capability of constantly releasing anions and purification and indoor air.

The invention discloses a sisal hemp car foot mat which comprises a surface layer, a middle layer and a bottom layer, wherein the surface layer is arranged as a sisal hemp fiber cloth layer; a dacron punched felt is arranged on the middle layer; a rubber layer is arranged as the bottom layer. The sisal hemp car foot mat has the advantages that the sisal hemp fiber cloth layer is arranged on the surface and has the advantages of damp-poof property, anti-skidding property, anti-static property, wear resistance, easiness in cleaning, high cost performance, and the like; the dacron punched felt is arranged on the middle layer, the dacron punched felt is excellent in air permeability, strong in warm-keeping property, soft and low in cost, and the production cost of the car foot mat is reduced to a certain degree; the rubber layer is arranged as the bottom layer and is used for preventing skidding. The production method for the sisal hemp car foot mat provided by the invention has the advantages that the sisal hemp car foot mat which is unlikely to hide germs, stain, fade and deform and easy to clean can be produced, and meanwhile, the sisal hemp fiber cloth layer, the dacron punched felt and the rubber layer in the sisal hemp car foot mat are unlikely to fall off, and the surface of the rubber layer is smooth and odorless.

The invention discloses a blended fibriia composite fabric. The blended fibriia composite fabric comprises a hygroscopic and breathable layer which is a surface layer and an antibiotic and radiation-proof layer which is an internal layer, the hygroscopic and breathable layer is obtained through blending braiding of 15-22wt% of sisal fibers and 78-85wt% of pina fibers, and the antibiotic and radiation-proof layer is obtained through blending braiding of 45-51wt% of hemp fibers and 49-55wt% of kendir fibers. The blended fibriia composite fabric has a double-layer structure design, the hygroscopic and breathable layer which is the surface layer has the characteristics of tough texture, wear resistance, acid and alkali resistance, and good hygroscopic and breathable properties, and the hygroscopic and breathable layer which is the internal layer has the characteristics of antibiosis, deodorization, ultraviolet resistance and healthcare, so the fabric has the characteristics of cooling, comfortableness, unlikely damage, and maintenance of the cleanness and health of human bodies.

The invention discloses a polishing brush for a curved surface board and a plane board. The polishing brush comprises a rotary drum, polishing abrasive cloth, brush bars, a nut and a screw. One side edge of the polishing abrasive cloth is connected with the outer wall of the rotary drum, the connecting edges of the polishing abrasive cloth and the rotary drum are parallel to the axis of the rotary drum, and the bottom edges of the brush bars are connected with the outer wall of the rotary drum and are parallel to the axis of the rotary drum. The polishing abrasive cloth and the brush bars are alternately arranged. The screw penetrates through a center shaft of the rotary drum, the nut is mounted on the screw, and the rotary drum is tightly pressed between the nut and the head of the screw. The polishing brush can be used for polishing the curved surface board, a concave line groove and a convex line, the polishing effect is good, the polishing abrasive cloth is convenient to replace, the cost performance is high, economy and environment protection are realized, the boards can be protected, operation and transportation are convenient, and the working efficiency is high.

The invention discloses a branch control and blossom promotion method for Belgian azalea. The method comprises the following steps: (1) selection of Belgian azalea seedlings; (2) pinching treatment; (3) treatment with a dwarfing agent after pinching treatment. According to the method, a growth regulator at a certain concentration and in a certain volume is applied to control the lengths of plant branches and promote increase of the number of flowering branches, so that the number of blossoms is increased; when the method is used for effectively, conveniently and rapidly controlling the lengths of the branches and promoting increase of the number of the blossoms, the average branch length can be reduced by over 50 percent compared with that of Belgian azalea cultivated by an ordinary method, and the number of the flowering branches can be increased by over 98 percent compared with that of the Belgian azalea cultivated by the ordinary method; with increase of the number of the flowering branches, the total number of the blossoms is increased, so that the ornamental value is effectively improved; in addition, by the method, the textures of petals are stronger, the petals are thicker, and the flowering time is longer.

The invention discloses a high-temperature-resistant and high-pressure-resistant viscosity reducer for oil-based drilling fluid and a preparation method of the viscosity reducer. The preparation method comprises the step of carrying out ammonolysis modification on a hydrolysable plant extraction polyphenol by adopting a partially amidated active amine to obtain the viscosity reducer. The preparation method is simple in process, the raw materials are easy to obtain, the prepared viscosity reducer has good dilution and viscosity reduction effects, the dilution and viscosity reduction performanceis stable under the high-temperature and high-pressure conditions, and certain filtrate loss reduction performance is achieved.

The invention relates to a watermelon fresh-keeping method, and belongs to the field of watermelon fresh keeping. In the prior art, the storage time of the watermelon is relatively short, the general watermelon fresh keeping method can only provide the 1-3 month fresh keeping time, and the user inconveniently eat the watermelon. A purpose of the present invention is to effectively solve the problems in the prior art. According to the present invention, watermelon is adopted as an object, 10-20 g of chitosan is weighed and is dissolved with glacial acetic acid, water is added to swell, glycerol is added, water is supplemented to achieve a volume of 1 L so as to obtain a chitosan film liquid with a concentration of 1-2%, the watermelon with characteristics of late ripeness, thick peel, tough texture, compact peel-flesh organization, healthy growth on the living vine and no pest is selected, the chitosan film liquid is sprayed 10 days before harvesting, the harvested watermelon is placed into a shady shed and solarization is avoided, 10 cm of the watermelon pedicel is retained during the harvesting, hay is padded during the watermelon transportation, the obtained watermelon is placed into a warehouse with a temperature of 2-8 DEG C. observation is performed every 7 days, the relatively-stable temperature and the relatively-stable humidity in the warehouse are maintained during the storage, doors and windows are closed during the day and are opened at night, and the ventilation state is maintained.

The invention provides a machining process method for plywood, and relates to the field of wood machining. Machining operation of the plywood is carried out through four steps including log machining, drying, glue passing processing and pressing plate molding. The compressive strength and the toughness of the plywood are sufficiently improved, the toughness can be improved to a certain degree through the structure of the plywood, cracking is reduced, the production rate of inferior-quality products is reduced, the overall technological process is novel, and further application and popularization can be carried out.

The invention discloses a hydrophobic and oleophobic sand wall like coating. The hydrophobic and oleophobic sand wall like coating is prepared from, by weight, 25-30 parts of basis paint, 3-5 parts of a slipping agent, 2-5 parts of 325-mesh quartz powder, 30-40 parts of 40-mesh quartz sand, 25-30 parts of quartz sand, 2-3 parts of a coupling agent and 0.2-0.4 part of a thickening agent. The invention further discloses a preparation method of the hydrophobic and oleophobic sand wall like coating. The hydrophobic and oleophobic sand wall like coating has the advantages that good hydrophobic and oleophobic effects are achieved, a coating layer is transparent in texture, strong but pliable in texture, high in third dimension and flexible in luster, and the coating is good in quality, long in service life, elastic, free of cracking, resistant to weather and alkaline, colorfast and capable of preventing water permeability. According to the preparation method of the hydrophobic and oleophobic sand wall like coating, operation is easy, and large-scale production is easy.

The invention discloses a durable and environment-friendly sisal hemp shoe sole. The durable and environment-friendly sisal hemp shoe sole is characterized by comprising a base layer, a first fabric layer, a second aluminum foil layer, a sisal hemp leaf layer, a loofah sponge layer, a second aluminum foil layer, a second fabric layer and a third fabric layer which are sequentially bonded and fixed from bottom to top, wherein the first fabric layer, the second fabric layer and the third fabric layer are formed by sewing and stacking 2-4 layers of fabrics from bottom to top, the fabrics of the first fabric layer and the second fabric layer are formed by spinning sisal hemp fiber subjected to modification treatment, the fabrics of the third fabric layer is made by blending the sisal hemp fiber and cashmere fiber according to the mass ratio of 2 to 1, and the sisal hemp fiber is subjected to modification treatment. The shoe sole mainly uses the sisal hemp fiber as a raw material, the sisal hemp fiber is subjected to different modification treatments, the third fabric layer is made by blending the sisal hemp fiber and the cashmere fiber, their advantages of the fibers are utilized to improve the practicability and durability of the shoe sole, and abrasion resistance of the shoe sole can be improved and enhanced by arranging a base layer flat base and a supporting pad.

The invention discloses a production method of a fan pedestal material, which has tough quality, is smooth, artistic and durable, and has water-proof, moisture-proof, fire-proof, freeze-proof, corrosion-resisting, inflaming-retarding, heat-insulation and sound-proof special functions and good heat isolation effect, is environmentally-friendly in production mode and is cheap and fine. The method comprises the following steps: water accounting for 10 percent of total weight is used for melting magnesium chloride accounting for 5 percent of total weight to obtain the mixed solution, and then 30 percent of magnesium chloride (wt %), 5 percent of oxalic acid, 5 percent of colloidal particles, 5 percent of short fibers, 10 percent of gaiting light, 5 percent of wood shavings, 5 percent of talcum powder, 10 percent of nanometer pint and 5 percent of colloidal particle nails are mixed into the mixed solution to form paste under stirring, the pasty mixing material is fed into a mould at 60-85 DEG C for 5-10 hours, and finally, the molded material is placed into a ventilation environment for 3-10 days. The production method is mainly used for the fan pedestal.

The invention discloses a manufacturing method of a resin high polymer material and silica gel simulation animal and plant model, which comprises the following steps: (1) preparing manufacturing materials and instruments, the materials including various animals and plants and insects, epoxy resin AB glue and a drying agent (aluminum oxide); the insect collection materials comprise a collection net, a poison bottle, a plastic bag, long tweezers, gloves and a triangular paper bag; the insect dried specimen model is manufactured through tweezers, pins, insect needles, wing spreading plates, a three-stage table, parchment paper, label paper and a specimen box. According to the manufacturing method of the resin high polymer material and the silica gel simulation animal and plant model, a delicate resin specimen model is finally obtained, meanwhile, the steps in the method are more specific and perfect, the success rate of specimens is high, and the specimens manufactured according to the method are easy and convenient to operate, excellent in transparency, tough in texture, not prone to being damaged, non-toxic, free of environment pollution and suitable for popularization and application. And no toxic substance or pollutant is used in the method, so that the method is more environment-friendly.

The invention discloses a high-definition screen which comprises a flexible film, a metal film and a scattering diffusion composite film. The flexible film acts as the substrate to be arranged on thelowest layer. The metal film is is plated on the surface of the flexible film by a vacuum plating mode. The scattering diffusion composite film covers the metal film. The high-definition screen also comprises sound-transmitting holes, a frame and fixing holes. The sound-transmitting holes are uniformly and densely distributed on the screen and penetrate through the screen. The frame tightly stretches around the screen for the fastening effect. The frame is provided with the fixing holes for installation. The high-definition screen has the gain value and the high-definition degree that the conventional metal screen cannot reach, and the color restoring effect of the picture is good so that the problem that the conventional metal screen is liable to oxidize can be thoroughly changed, the service life of the screen can be greatly prolonged, and the high-definition screen is worth of popularization and use.