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86results about How to "Good moisture resistance" patented technology

Composite acupuncture filter bag used for smoke treatment of ceramic kiln

The invention discloses a composite acupuncture filter bag used for smoke treatment of a ceramic kiln. Short fibers and base fabrics are acupunctured by adopting non-woven acupuncture technology to form a composite acupuncture plain felt, the plain felt is soaked and coated by adopting a surface chemical treatment agent, and then the plain felt is dried and cured at a high temperature and is tailored and sewn to form the filter bag, wherein the base fabrics adopt 30-count alkali-free glass fiber woven fabrics; the short fibers for acupuncture comprise polypropylene fibers, polyphenylene sulfide fibers and 80-count short glass fiber yarns; and the surface chemical treatment agent comprises polytetrafluoroethylene emulsion, polyacrylic ester emulsion, coupling agent, antistatic agent and water. The invention provides the composite acupuncture filter bag used for the smoke treatment of the ceramic kiln, which has the advantages of moisture resistance, good acid corrosion resistance, long service life, high strength of the base fabrics and lower production cost. The problems of poor moisture resistance, poor corrosion resistance, low strength, short service life and high production cost of the filter bag in the prior art are solved. The filter bag is suitable for dust removal and purification treatment for the smoke of the ceramic kiln.
Owner:山东兴国新力环保科技股份有限公司

Preparation of red strontium sulphide long afterglow material

The invention discloses a method for preparing a red strontium sulphide long afterglow material, comprising a hydrothermal coprecipitation method which comprises the following steps that: (a) water-solubility strontium salt, water-solubility europium salt, water-solubility dysprosium salt, carbamide and water are weight according to the mol ratio of 1: between 0.01 and 0.05: between 0.01 and 0.05: between 4 and 6: between 28 and 32 and are put inside a container to be stirred and dissolved, the mixture is insulated in a sealing state at a temperature of between 80 and 160 DEG C for 5 to 24 hours so that a precursor is obtained; (b) the precursor is subject to filtering and annealing at a temperature of between 900 and 1200 DEG C in the reaction environment for 0. 5 to 2 hours so that the red strontium sulphide long afterglow material is prepared; the water-solubility strontium salt is strontium nitrate or strontium chloride or strontium acetate, the water-solubility europium salt is europium nitrate, europium chloride or polyimide, the water-solubility dysprosium salt is dysprosium nitrate or dysprosium chloride or dysprosium acetate, and a surface active agent is added according to the mol ratio of the water-solubility strontium salt to the surface active agent of 1: between 0.0001 and 0.0003. The method is widely applied to the fields such as building decoration, traffic transportation, military facilities, fire emergency service and goods for everyday consumption.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Ultra-light fully-closed-cell foamed ceramic with compact surface and low-temperature firing method of ultra-light fully-closed-cell foamed ceramic

The invention discloses ultralight fully-closed-cell foamed ceramic with a compact surface. According to the invention, quartz sand is taken as a main material, calcium carbonate is taken as a foaming agent, borax is taken as a fluxing agent and zinc oxide, albite, potassium feldspar and spodumene are taken as conditioning agents; and a sintering temperature is 740 to 800 DEG C. The invention further discloses a low-temperature firing method of the ultralight fully-closed-cell foamed ceramic. The preparation technology disclosed by the invention has the remarkable advantages of simple process, low sintering temperature, short sintering time and the like, so the manufacturing cost of the method is far lower than the manufacturing cost of existing preparation technology. Besides, different from foamed ceramic prepared in the prior art, the interior of the ultralight fully-closed-cell foamed ceramic with the compact surface is of a porous structure, pores are independent from one another and do not communicate with each other, the surface is continuous and compact and free of pores, the heat preservation and sound insulation effects of the foamed ceramic can be remarkably improved, the foamed ceramic has excellent waterproof and moisture-proof performance, and the reliability of a product is obviously improved.
Owner:YANTAI UNIV

Data transmission cable for physically-foamed insulation transponder

The invention provides a data transmission cable for a physically-foamed insulation transponder. The data transmission cable comprises a cable core, an insulating lining, a base sheath, an inner sheath, a double-steel belt armor layer and an outer sheath, wherein the cable core is stranded by two of four insulated single lines; the insulating lining, the base sheath, the inner sheath, the double-steel belt armor layer and the outer sheath are sequentially arranged outside the cable core from inside to outside; discharge copper leads are arranged between the insulating lining and the base sheath; and each insulated single line comprises a copper conductor and a skin-foam-skin physically-foamed insulation structure outside the copper conductor. The cable has the advantages of good moisture-proof function, excellent insulating property and small transmission attenuation. According to an aluminum sheath cable, a layer of inner sheath for longitudinally wrapping the outside of a corrugated single-side aluminum-plastic tape and a single-side aluminum-plastic tape is removed; by properly increasing the thickness of an aluminum layer of the aluminum sheath, the same shielding performance effect is reached; the manufacturing process is effectively reduced; the production efficiency is improved; and the manufacturing cost is reduced.
Owner:江苏通鼎光电科技有限公司

Ceramic green body injection molding machine and molding method thereof

The invention discloses a ceramic green body injection molding machine and a molding method thereof. The ceramic green body injection molding machine comprises a rack, a support, a mechanical arm, a direct pressure mold opening and closing device, a material feeding mechanism, a product conveying belt, a hopper, a molding mold, a plasticizing cylinder, a screw and a plasticizing motor; the support is vertically arranged in the middle of the rack, the molding mold and the direct pressure mold opening and closing device are arranged on the support, the material feeding mechanism is arranged at the bottom of the rack corresponding to the position below the molding mold, the plasticizing cylinder is horizontally arranged on the rack, one end of the plasticizing cylinder is connected with the material feeding mechanism, the other end of the plasticizing cylinder is provided with a hopper mounting base, one end of the screw extends into the plasticizing cylinder through the hopper mounting base, and the other end of the screw is connected with the plasticizing motor. Accordingly, the structural design is exquisite and reasonable, a traditional horizontal type is changed into a vertical type, the production efficiency is greatly improved, the produced product is good in compactness and smoothness, high in mechanical strength, high in humidity-state resistance value, not likely to break and high in product yield, and the production speed and the efficiency are high.
Owner:东莞杰宇机械有限公司

Medical equipment transferring storage box having moisture-proof function

The invention discloses a medical equipment transferring storage box having a moisture-proof function. The medical equipment transferring storage box comprises a base; the two sides of the top of thebase are hinged with supporting plates; the two ends of the top of the base are hinged with baffles; two threaded through grooves formed horizontally are formed in the two ends of each of the two baffles; the interiors of the threaded through grooves are in threaded connection with locking screw rods; and penetrable holes formed horizontally are formed in the two ends of one side of each supporting plate. Drying boxes are installed on the two baffles, allochroic silica gel drying agents in the drying boxes can absorb moisture in the medical equipment transferring storage box, and workers can observe colors of the allochroic silica gel drying agents through an observation window and replace the allochroic silica gel drying agents in time, so that the medical equipment transferring storage box has the good moisture-proof function; and bump can be avoided, shake in the medical equipment transferring process can be removed by springs, when the medical equipment transferring storage box istaken out, the locking screw rods are unscrewed, and the supporting plates can be separated with the baffles, so that medical equipment is simple and convenient to fix.
Owner:ZHENGZHOU RENHONG PHARMA CO LTD

Moisture-resisting and oil-resistant epoxy self-bonding paint for electromagnetic wire and preparation method of epoxy self-bonding paint

The invention discloses moisture-resisting and oil-resistant epoxy self-bonding paint for an electromagnetic wire. The moisture-resisting and oil-resistant epoxy self-bonding paint is characterized by being prepared from raw materials in parts by weight (kilogram) as follows: 12-15 parts of E-42 epoxy resin, 10-12 parts of phenolic resin, 8-10 parts of amino resin, 12-15 parts of nylon 12, 2-3 parts of anilino-methyl-triethoxysilane, 3-4 parts of 1,6-hexanediol diacrylate, 1-2 parts of benzoin, 2-3 parts of zinc oxide, 1-2 parts of polyamide wax, 2-3 parts of dicumyl peroxide, 1-2 parts of coconut oil monoethanolamide, 3-5 parts of an ACR (acrylate copolymer) impact resisting agent, 12-15 parts of aluminum oxide, 7-9 parts of an assistant, 80-90 parts of m, p-cresol and 100-120 parts of dimethylbenzene. The process is simple, the production process is stable and easy to control, and the consistency of finished products is improved substantially; the production process is environment-friendly; the epoxy self-bonding paint prepared with the method has excellent oil resistivity and good moisture resistance, and the temperature classification is improved, so that the service lives of the finished products are prolonged; and the bonding strength and the surface smooth finish of a coated wire are improved due to adding of the coupling agent and the assistant.
Owner:铜陵天河特种电磁线有限公司

Raw material composition for preparing light-cured resin, light-cured resin prepared from raw material composition and application of light-cured resin

ActiveCN112480324AGood thermal and mechanical propertiesGood moisture resistancePrepolymerPhotoinitiator
The invention discloses a raw material composition for preparing light-cured resin, the light-cured resin prepared from the raw material composition and application of the light-cured resin, and belongs to the field of curable resin synthesis. The raw material composition for preparing the light-cured resin comprises cyanate ester, a photocurable prepolymer, a diluent, a catalyst and a photoinitiator, wherein the photocuring interpenetrating polymer network structure resin is obtained by ultraviolet light curing and thermal curing of the composition. According to the invention, the raw material composition for preparing the light-cured resin has the characteristic of rapid molding of photosensitive resin and the characteristic of excellent heat resistance and moisture resistance of cyanateester; and the photocuring interpenetrating polymer network structure resin is low in viscosity and easy to process, has the advantages of being high in strength, resistant to high temperature, low in shrinkage rate, low in water absorption rate, low in dielectric constant and the like, and can be applied to the fields of 3D printing, coating materials, adhesives, aerospace materials, printed circuit boards, invisible clothes, artificial satellites, flame-retardant materials, electronic packaging and the like.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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