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31results about How to "Does not produce toxic substances" patented technology

Nano hybrid material modified organosilicone heat-conductive electronic pouring sealant and preparation method of sealant

The invention relates to a nano hybrid material modified organosilicone heat-conductive electronic pouring sealant for an electronic product and a preparation method of the sealant. The preparation method comprises the following steps: adding vinyl polydimethylsiloxane, an organosilicone nano hybrid material and surface modified heat-conductive filler into a vacuum kneading machine, and dehydrating and blending for 50-100 minutes to obtain a base material at the temperature of 100-145 DEG C and the vacuum degree of (-0.07)-(-0.09)MPa; adding a hydrogen containing silicone oil crosslinking agent and a crosslinking inhibitor into the base material at the normal temperature, and fully stirring for 20-40 minutes to prepare a component A; adding a platinum catalyst into the base material, and fully stirring for 20-40 minutes to prepare a component B; and then uniformly blending the components A and B in equal weight, and defoaming for 6-12 minutes at the vacuum degree of 0.05-0.07MPa to obtain the nano modified organosilicone heat-conductive electronic pouring sealant. The pouring sealant has relatively low viscosity and good mobility. The heat conductivity coefficient is 0.6-0.85w/m.k. The cured product has good mechanical performance and electrical performance and can be cured at the normal temperature or the high temperature. The pouring sealant can be widely applied to packaging electronic elements, integrated circuit boards, circuit modules, LED (Light Emitting Diode) chips and the like.
Owner:BEIJING UNIV OF CHEM TECH

Novel environment-friendly building brick and preparation method

The invention relates to a novel environment-friendly building brick and a preparation method, and belongs to the technical field of waste disposal. The building brick comprises silicate cement, gypsum, a GCY activating agent, an MSZ168-C additive, coarse slag, fine slag and magnetized water. The preparation method comprises steps as follows: firstly, slag discharged by a slag waste incineration power plant is subjected to a series of pretreatment of hydrolytic tank washing, crushing screening, magnetic separation, flotation separation and screening of 3-15 cm particles, the slag and the MSZ168-C additive are added into an agitation tank by using a forced mixer according to a set proportion, the GCY activating agent is diluted in the magnetized water magnetized by a magnetizer, the mixture and cement are jointly added for agitation, and maintenance is performed after compression molding, so that a finished product is obtained. According to the novel environment-friendly building brick and the preparation method, the slag is prepared into a mold brick without firing, the preparation time is shortened, the burning energy consumption is reduced, emission of harmful gas in a burning process is avoided, and the environment protection effect is remarkable; and the manufactured brick is high in strength, light in weight and good in thermal insulation property, and the requirement for light mass, energy conservation and thermal insulation of wall materials of a modern building can be met.
Owner:山东环兴再生资源科技有限公司

Air conditioning device and control method thereof

The invention relates to an air conditioning device and a control method thereof. The control method is used for preventing the surface of an electric heater of the air conditioning device from beingcorroded and comprises steps as follows: when a first preset condition, a second preset condition or a third preset condition is met, the electric heater is started, condensate water on the surface ofthe electric heater is evaporated through heat produced by the electric heater until the starting time of the electric heater reaches second preset duration. The first preset condition is that cumulative duration of operation of a compressor of the air conditioning device at frequency higher than or equal to first preset frequency in a refrigeration or dehumidification mode reaches first preset duration; the second preset condition is that when temperature of the indoor environment reaches the preset temperature in the refrigeration or dehumidification mode, breaking halt is required, or whena shutdown signal for indicating the air conditioning device to stop operating is received, normal shutdown is required; the third preset condition is that the air conditioning device is required tobe switched in a heating mode and the compressor stops running. Therefore, the surface of the electric heater of the air conditioning device can be prevented from being corroded, and the air conditioning device is safe, healthy, environmentally friendly and low in cost.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

Fire-retarding and low-temperature resistant polypropylene material, preparation method thereof and use thereof

The invention discloses a fire-retarding and low-temperature resistant polypropylene material, a preparation method thereof and use thereof. The material consists of 50 to 75 weight parts of co-polypropylene, 15 to 25 weight parts of fire retardant, 10 to 25 weight parts of thermoplastic elastomer and 0.2 to 0.5 weight part of antioxygen. The preparation method comprises: mixing the components in a high-speed mixer; feeding the mixture in an double-screw extrude equipped with multistage heating zones; and uniformly dispersing, extruding to make grains, and obtaining the fire-retarding and low-temperature resistant polypropylene material. The fire resistance of polypropylene material reaches UL94-3.2mm V0, the polypropylene material can bear a temperature of -20DEG C, the tensile strength of the polypropylene material is over 18MPa, the tensile elongation of the polypropylene material is over 200 percent, and the bending strength of the polypropylene material is not less than 22MPa. The fire-retarding and low-temperature resistant polypropylene material can be used for making automobile safety cell, control wire twisted sleeve, various outdoor electric wire protective sleeves and the like.
Owner:合诚技术股份有限公司

All-insulation solid ring network cabinet

PendingCN107359535AGood insulation performanceSafe and stable insulation performanceSwitchgear arrangementsEngineeringSurface plate
The present invention relates to an all-insulation solid ring network cabinet, which comprises a cabinet body formed by a transverse supporting plate, a longitudinal supporting plate, an upper panel and a lower panel. A mechanism box and a three-phase independent insulating barrel are arranged in the upper layer of the cabinet body. The top of the insulating barrel is provided with a bus sleeve. The lower end of the insulating barrel is provided with a lower outgoing sleeve. One side of the insulating barrel is provided with an umbrella ring. The umbrella ring is connected with the mechanism box. A cable chamber is arranged in the lower layer of the cabinet body. The upper panel on the front side of the cabinet body is provided with an isolation fracture. The back panel and the longitudinal supporting plate of the cabinet body are provided with a pressure releasing window. The lateral panel of the cabinet body is provided with an overhauling port. According to the invention, the all-insulation solid ring network cabinet adopts the composite insulating manner of the epoxy resin and the air-insulated, so that the all-insulation solid ring network cabinet is excellent, safe and stable in insulating performance. One side of the insulating barrel is provided with the umbrella ring, so that the insulating strength is increased. Based on the three-phase independent split design structure, the possibility of inter-phase short circuit is completely avoided. The all-insulation solid ring network cabinet is high in standardization degree, compact in structure, small in size, convenient in installation, strong in environment adaptability, environment-friendly and free of pollution.
Owner:YUEQING JIHUI POWER TECH

Preparation method of golden minced shrimps

The invention discloses a preparation method of golden minced shrimps. The method comprises the following steps: (1) preparing shrimp meat: selecting sea shrimps, shelling the heads, removing tails, and crushing the shrimps into paste; (2) preparing auxiliary materials: smashing dried shrimps for later use, and smashing garlic and onions for later use; (3) performing stir-frying to prepare golden minced shrimps; and (4) oil sealing, sterilization and preservation: after the product is boiled, enabling a layer of oil film to be formed on the surface of the finished product, preserving or putting the film into a high-temperature sterilization tank for high-temperature sterilization for 20 minutes at 110-121 DEG C, and then performing packaging and preservation. The minced shrimps prepared by the method can be prepared by using common cooking food materials without large-scale preparation processes such as centrifugation and fermentation, and the operation is simple; all the food materials and the auxiliary materials are added and decocted according to specific weight components and are sterilized and stored at high temperature, and the shelf life can reach 18 months; and the prepared golden minced shrimps are low in salt content, fermentation is avoided, toxic substances are not generated, and the taste and freshness of the product are improved by adding garlic and onions.
Owner:吴广为

Novel environment-friendly building brick and preparation method

The invention relates to a novel environment-friendly building brick and a preparation method, and belongs to the technical field of waste disposal. The building brick comprises silicate cement, gypsum, a GCY activating agent, an MSZ168-C additive, coarse slag, fine slag and magnetized water. The preparation method comprises steps as follows: firstly, slag discharged by a slag waste incineration power plant is subjected to a series of pretreatment of hydrolytic tank washing, crushing screening, magnetic separation, flotation separation and screening of 3-15 cm particles, the slag and the MSZ168-C additive are added into an agitation tank by using a forced mixer according to a set proportion, the GCY activating agent is diluted in the magnetized water magnetized by a magnetizer, the mixture and cement are jointly added for agitation, and maintenance is performed after compression molding, so that a finished product is obtained. According to the novel environment-friendly building brick and the preparation method, the slag is prepared into a mold brick without firing, the preparation time is shortened, the burning energy consumption is reduced, emission of harmful gas in a burning process is avoided, and the environment protection effect is remarkable; and the manufactured brick is high in strength, light in weight and good in thermal insulation property, and the requirement for light mass, energy conservation and thermal insulation of wall materials of a modern building can be met.
Owner:山东环兴再生资源科技有限公司
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