90results about How to "Flame-resistant" patented technology

The method for making corncob into formed charcoal whose external surface is made into polygonal prismoid for mand its centre has a through hole includes the following steps: pulverizing, screening, drying, forming, carburizing, cooling, taking out from furnace, checking, packaging and putting into storage. Said product has no pollution, can be combusted uniformly and its heating value is high, can be used for roasting food and chafing dish instead of woodcoal, etc.

The invention relates to a polysiloxane and glycidol-containing strong-hydrophobicity gelatin leather finishing agent and a preparation method. The preparation method comprises the following steps: dissolving gelatin in water to prepare aqueous solution with mass concentration of 2-20 percent; adding glycidol into a first reaction flask under the conditions of temperature of 40-70 DEG C and pH of 6-12 to obtain solution 1; adding a surfactant into a second reaction flask, continuously stirring, and meanwhile adding Si-O-Si repetitive unit-containing epoxypolysiloxane in batches or continuously to obtain solution 2, wherein the using amount of the surfactant is 0.5-20 percent of the mass of the gelatin; mixing the solution 1 and the solution 2 in different proportions, weighing 15-20 g of the mixed solution to be placed in a mold of polytetrafluoroethylene, adding 5-10 mL of one or two or three of ethanol, tetrahydrofuran and methanol and drying in a normal pressure drying oven at the temperature of 40-80 DEG C to obtain the gelatin leather finishing agent with a superior function. The finishing agent has the characteristics of strong hydrophobicity, super extensibility, heat resistance, oxidation resistance, wet scrubbing resistance and the like.

The invention relates to a polysiloxane and quaternary ammonium salt-containing antibacterial gelatin leather finishing agent and a preparation method thereof. The preparation method comprises the following steps: dissolving gelatin in water to prepare aqueous solution with mass concentration of 2-20 percent; adding epoxy quaternary ammonium salt into a first reaction flask under the conditions of temperature of 40-70 DEG C and pH of 6-12 to obtain solution 1; adding a surfactant into a second reaction flask, continuously stirring, and meanwhile adding Si-O-Si repetitive unit-containing epoxypolysiloxane in batches or continuously to obtain solution 2, wherein the using amount of the surfactant is 2-20 percent of the mass of the gelatin; mixing the solution 1 and the solution 2 in different proportions, weighing 15-20 g of the mixed solution to be placed in a mold of polytetrafluoroethylene, adding 5-10 mL of one or two or three of ethanol, tetrahydrofuran and methanol and drying in a normal pressure drying oven at the temperature of 40-80 DEG C to obtain the multifunctional gelatin leather finishing agent. The finishing agent has the characteristics of antibacterial property, adjustable hydrophilia and hydrophobicity, flexible film, strong anti-oxidant capacity and the like.

The invention discloses a release agent for lead storage battery grid casting and a preparing method thereof. The release agent for lead storage battery grid casting comprises the following raw materials of, by mass, 100 parts of water, 4-6 parts of cork powder, 1.5-2.5 parts of volcanic ash, 1.5-2.5 parts of sodium silicate and 0.15-0.20 parts of phenolic resin. According to the release agent for lead storage battery grid casting, the volcanic ash of being high-temperature-resistant, high in viscosity, not easy to carbonize and small in particles is added, the fact that the release agent falls off too fast is reduced, the durability of the release agent is increased, the time interval of mould jetting during grid casting is extended, the work efficiency is improved, and the stability of plate grid gram weight is improved; and the water-soluble phenolic resin is added, the release agent has the advantages of heat resistance, flame resistance and water resistance and insulativity, the acid resistance is good, the alkali resistance is poor, the mechanical and electrical performances are good, demoulding is easy, the transfer rate is low, during synthesis, different components are added, the modified phenolic resin of different functions can be obtained, and the release agent has a variety of excellent characteristics such as alkali resistance, abrasion resistance, oil resistance and corrosion resistance.

The invention discloses a heat insulation coating applied to building exterior walls and relates to the technical field of coatings. The heat insulation coating is prepared from the following components: a styrene-acrylic emulsion, alkyd resin, nano silicon dioxide, allylboronic acid pinacol ester, hollow microspheres, hydroxyethyl cellulose, a vinyl-vinyl acetate copolymer, sodium ricinoleate organic modified sepiolite powder, a dispersant, a filler and deionized water. When the heat insulation coating is applied to the building exterior walls, the heat insulation coating is obvious in heat insulation effect, has flame retardance and weather resistance, is low in specific gravity, low in heat conduction coefficient, high in adhesion performance, difficult to fall off and high in toughness; meanwhile, the heat conduction coefficient of the coating is reduced; the light reflectivity of the coating is improved; the heat insulation effect is improved.

The application provides a removal device and a removal method for volatile organic compounds in industrial waste gas, wherein the removal method mainly includes five steps: pretreatment of waste gas, adsorption by high-silicon molecular sieve, oxidization by ozone, discharge of waste liquid, and discharge of purified gas. The removal method has reasonable design, simple process and convenient operation and can completely remove the volatile organic compounds.

The invention provides a flame retardant grade antibacterial office supply made of PVC (polyvinyl chloride)/ABS (acrylonitrile butadiene styrene). The antibacterial office supply is characterized by being prepared from a composite resin, wherein the composite resin comprises PVC, ABS, an antibacterial agent, a flame retardant, a lubricating agent and a stabilizing agent. The office supply not only has good mechanical property but also has antibacterial property and flame retardance and can effectively prevent cross contamination of bacteria, viruses and the like caused by contact of the office supply in the offices and increase the preservation probability of the office supply when fire happens.

The invention discloses an antiskid pad. A plurality of antiskid lugs is formed convex on the bottom surface of the pad. A drainage groove is arranged on the surface of the antiskid lug contacting with the ground. Through the contact of the antiskid lugs with the ground, the antiskid lugs are pressed towards the ground when a human body or a heavy is acted on the pad, and the air, water or oil remained between the antiskid lugs and the ground is guided out through the drainage grooves, making the surfaces of the antiskid lugs be completely closed together, so that the grip force of the pad is improved. Thus the invention actually achieves good antiskid effect.

The invention discloses an integrated curtain wall and a construction method of a thermal-insulating wall system. The method comprises following steps: fixedly arranging fixing strips, erecting a first inner template, installing connection assemblies, installing thermal insulation plates, erecting a second inner template, coating cement mortar and decorating plaques. Wave-shaped metal screen plates are utilized to form a first inner template and a second inner template. A thermal insulation plate and multiple thermal insulation pipes are clamped between the first inner template and the second inner template. The cement mortar is coated outside the metal screen plates through a mortar spraying or smearing mode so that a thermal insulation wall with a hollow inner template is formed. Multiple connection assemblies are arranged on one side of the thermal insulation wall in an outwardly extending mode. The connection assemblies are connected fixedly with the multiple plaques so that the integrated thermal insulation wall and a curtain wall are formed. The integrated curtain wall and construction method of the thermal-insulating wall system have following beneficial effects: advantages such as thermal insulation, energy conservation, flame resistance, heat insulation, sound insulation, and water prevention are obtained; and the method is simple in formation, quick in construction, and is capable of shortening a construction period and protecting the environment.

The invention is a soft bus with 100 Ohm plus or minus 5% property impedance, used in a LVDS signal transmitting system, able to reduce the number of components in the system and reduce the cost; and the system is composed of a low voltage difference signal receiver (LVDS), a soft bus with the above property, an auxiliary pinboard and a cover-lifting connector, where it uses the LVDS to compose signal transmission interface of LCD interface; one end of the soft bus composes a first conductive part connected with the cover-lifting connector and the other end composes a second conductive part connected with the LVDS; the auxiliary pinboard has a concave space holding the soft bus, fixed under a small segment of the soft bus including the second conductive part, and the second conductive part of the soft bus and the front end of the auxiliary pinboard compose a structure like LVDS plug, able to be inserted in the LVDS and connect with the LVDS; the cover-lifting connector is a signal transmission interface composing system mainboard interface.

The invention relates to a soft drop-out line structure with characteristic impedance of Z085-115 ohm, the structure includes insulating layer, electric wire layer, insulating layer and metal masking layer. The metal masking layer has several hollow out units with the same shape, the metal entity part of the metal masking layer has a good masking effect to the tin plated copper electric wire, thus the characteristic impedance Z0 can be changed, when the area of the metal entity masked by the metal masking layer, the area of the tin plated copper electric wire masked reach 4%-12%, the characteristic impedance Z0 is 85-115 ohm, it can satisfy the demands that the characteristic impedance Z0 must uses 100 ohm standard.

The invention discloses a high-toughness flexible power cable for a communication base station. The high-toughness flexible power cable comprises a circular aramid fiber core and an inner conductive layer; a plurality of trapezoidal conductors are stranded on the outer surface of the inner conductive layer; a fireproof flame-retardant layer wraps the outer surface of the polyethylene insulating belt, comprising mica paper, a first glass fabric and a second glass fabric; the mica paper is adhered to the first glass fabric and the second glass fabric through adhesive layers; a glass tape wraps the outer surface of the fireproof flame-retardant layer; a protecting sleeve layer comprises an inner polyvinyl chloride protecting layer at the inner side and an outer protecting layer at the outside; the outer protecting layer is prepared from a thermoplastic polyurethane phenol elastomer, low-density polyethylene, ethylene acrylic ester, an ethylene-butylene copolymer, silica, a nitrile compound, chlorinated polyethylene and zinc stannate. The cable is non-combustible, high in heat resistance, tight and difficultly to breath; in addition, the layering phenomenon due to relatively large material difference can be avoided; the contact surface compatibility and adhering firmness can be improved, and the product performances are increased.

The present invention relates to preparation of a mono-epoxy-terminated polysiloxane-modified gelatin gradient membrane by a freeze-drying method. Surfactant sodium alkyl sulfate is dissolved in water and formulated into an aqueous solution, the aqueous solution is stirred for 1-2h at 40-60 DEG C under the condition of pH of 8 to 11, gelatin is added, stirring is performed for 4-8h, and mono-epoxy-terminated polysiloxane with the molecular weight of 500 is added to obtain a mono-epoxy-terminated polysiloxane-modified gelatin solution. The mono-epoxy-terminated polysiloxane-modified gelatin solution is centrifuged at a low temperature, after layering, water is added into an intermediate layer for even mixing, ethanol is added, after even mixing, 0.5-0.8ml of the mixture is measured and dropwise added into a gelatin substrate, standing is performed for 12-18h, liquid nitrogen is used for freezing, and the freeze-drying method is used for drying to obtain the mono-epoxy-terminated polysiloxane-modified gelatin gradient membrane. The mono-epoxy-terminated polysiloxane-modified gelatin gradient membrane has the characteristics that component concentration change is gradient in longitudinal section, and the mono-epoxy-terminated polysiloxane-modified gelatin gradient membrane is high in tensile strength, good in hydrophobicity and soft, and so on.

The invention discloses graphene-reinforced rubber and a preparation method thereof. The graphene-reinforced rubber comprises, by weight, 20-30 parts of graphene, 70-80 parts of rubber, 5-10 parts ofmetal powder, 0.5-1.0 part of a dispersant, 0.3-0.9 part of a vulcanizing agent, 2-5 parts of an accelerant and 3-8 parts of an activator. The performance experiments on the graphene-reinforced rubbershow that the addition of graphene with double-layer or three-layer structure evidently improves tensile strength and elongation at break for the rubber, the improved wear resistance of the rubber isdue to rubber stability enhancement under joint action of nano metal powder and graphene, and conductivity of the rubber is better than that of materials having no graphene or metal powder, with resistance greatly decreased.

The invention provides a smokeless flame-retardant high-temperature-resistant power cable. Each insulation wire core is formed by a conductor, an inner insulation layer and an outer insulation layer, wherein the conductor is wrapped by the inner insulation layer and the outer insulation layer sequentially. The smokeless flame-retardant high-temperature-resistant power cable is characterized in that a glass fiber layer is arranged outside each outer insulation layer, an insulation wire core is formed by one conductor, one inner insulation layer, one outer insulation layer and one glass fiber layer, a plurality of insulation wire cores are twisted to form one cable core, gaps of the cable core are filled with filling strips, and the cable core and the filling strips are wrapped by isolation layers. The outermost layer of the cable is an outer sheath, and the inner insulation layers are made of insulation materials of polyethylene or cross-linked polyethylene or irradiation cross-linked polyolefin. The inner insulation layers are formed by fire-resistant mica tape and a nano fireproof insulation layer.

The invention provides adsorption powder for reducing the oxygen content in a lithium ion battery pack, a composite support substrate and a battery. The adsorption powder comprises iron powder, chloride inorganic salt and a deoxidizer. The mass of the iron powder is (1-5) times that of the chloride inorganic salt, and the content of the chloride inorganic salt is (0.7-1.2) times that of the deoxidizer. According to the adsorption powder for reducing the oxygen content in the lithium ion battery pack, the composite support substrate and the battery, oxygen and moisture in the battery pack are eliminated, and even the support substrate capable of absorbing oxygen released by the positive electrode of the battery cell during thermal runaway can still be used for preventing and controlling thethermal runaway, so that the safety of a battery system is improved.

The invention discloses fire-resistant, oil-resistant and high-and low-temperature resistant industrial rubber which is prepared from the following raw materials: natural rubber, neoprene, nitrile rubber, ceramic ultrafine powder, palm oil, an adhesive, dimethicone, polyurethane, oleic acid, a softener, zinc oxide, PEG4000 and an anti-aging agent. The industrial rubber has great advantages in the aspects of fire resistance, oil resistance and high temperature resistance, cannot be worn or broken in use and is long in service life, the components are scientific and reasonable in proportion, safe and effective, the preparation method is easy to operate and the fire-resistant, oil-resistant and high-and low-temperature resistant industrial rubber is suitable for massive promotion in industry.

The invention relates to a special-grade fireproof highly-anti-flaming nanometer power cable which comprises a plurality of cable cores and an outer sheath. Each cable core is formed by a copper conductor, double-layer fireproof mica tape and a fireproof nanometer insulating layer, wherein the double-layer fireproof mica tape and the fireproof nanometer insulating layer are sequentially wrapped outside the copper conductor, anti-flaming filling ropes are filled outside the cable cores, glass fiber tape is wrapped, and the fireproof nanometer outer sheath is wrapped outside the glass fiber tape. The electric-conducting and anti-flaming capabilities of the cable are improved. The cable overcomes the shortcomings existing in a traditional cable, has excellent anti-flaming performance, and has simultaneously the advantages of being high in transmitting rate, small in line loss, high in safety performance in use, free of environmental pollution and low in installing and maintenance cost and the like. The special-grade fireproof highly-anti-flaming nanometer power cable is increasingly applied to various fields and occasions such as subways, nuclear power stations, markets, hospitals and intelligent buildings where the requirements for safety reliability of electrical equipment are high, and has good market prospects.

The invention relates to a modified gelatin gradient film prepared from mixed glycidol and single-epoxy-terminated polysiloxane. A method for preparing the modified gelatin gradient film includes dissolving surfactants in water to prepare aqueous solution; adding gelatin into the aqueous solution under the conditions of the temperatures of 40-60 DEG C and the pH (potential of hydrogen) of 8-11; stirring the gelatin and the aqueous solution for 4-8 h and then adding the single-epoxy-terminated polysiloxane into the gelatin and the aqueous solution continuously or in batches to obtain mixtures; carrying out reaction for 12-30 h and then adding glycidol into the mixtures; continuing to carry out reaction at the temperatures of 40-60 DEG C for 6-12 h to obtain milk white turbid liquid; adding ethyl alcohol into the milk white turbid liquid and uniformly mixing the ethyl alcohol with the milk white turbid liquid to obtain mixed liquid; dripping 0.5-0.8 ml of the measured mixed liquid on gelatin substrates; allowing the gelatin substrates to stand still for 12-18 h and then freezing the gelatin substrates by the aid of liquid nitrogen; drying the gelatin substrates by the aid of a freeze dryer to obtain the gradient film. The dosage of the gelatin is 1-10% of the mass of the aqueous solution. The dosage of the single-epoxy-terminated polysiloxane is 0.2-1.0 times the molar weight of the gelatin. The dosage of the glycidol is 0-1 times the mass of the single-epoxy-terminated polysiloxane. A volume ratio of the ethyl alcohol to reaction liquid is (3-5):1. The modified gelatin gradient film has the advantages that the concentration of components of the modified gelatin gradient film changes in longitudinal sections in a gradient manner, the modified gelatin gradient film is high in tensile strength and good in hydrophobic property and is soft, and the like.