2026results about How to "Not easy to age" patented technology

The invention provides a heat-insulation slurry composition which comprises the following components in parts by weight: 25-35 parts of waterborne inorganic binder, 18-47 parts of lightweight aggregates, 15-23 parts of reinforcing fibers, 15-25 parts of magnesium-containing minerals, 20-30 parts of fillers and a proper amount of water, wherein the waterborne inorganic binder comprises the following main components in parts by weight: 20-25 parts of colloidal silica, 5-8 parts of inorganic waterproof agent and 1.5-2.0 parts of thickening water-retaining agent. The invention also provides a method for preparing a heat-insulation plate by the heat-insulation slurry composition. According to the heat-insulation slurry composition provided by the invention, the main raw materials are inorganic materials, a prepared plate is light and high in mechanical strength, the heat-insulation performance is excellent, the plate is not inflammable, can be made into various specifications of products with the thickness of 6-120mm, the maximum length of 1200mm and the maximum width of 800mm and can be directly adhered to a wall surface, and the product conforms to the national environmental standard.

The invention provides a preparation method of a magnesium alloy surface micro-arc oxidation/spray coating compound film, which relates to a preparation method of a magnesium alloy surface compound film. The invention solves the problems that film layers obtained by chemical composition coating, anodic oxidation and vapor deposition in the existing magnesium alloy surface treatment method are thin and have poor corrosion resistance performance, the ion injection has high cost and is difficult to realize large-area processing, the combining force between coating layers and the magnesium alloy is poor, and organic coating layers has the defect of easy aging. The preparation method has the following steps: firstly, using micro-arc oxidation for preparing ceramic films on the surface of the magnesium alloy; then, adopting air spray coating for spraying and coating inorganic paint onto the ceramic films; and then, carrying out heat treatment to obtain the micro-arc oxidation/spray coating compound film. The method is simple, and the cost is low. The air spray coating uses porous structures of the micro-arc oxidation ceramic films, so the combination of the inorganic coating layers and the ceramic films is firm, the thickness of the compound films is between 20 and 40 mum, the self corrosion electric potential is positively moved to -1.02 V, the corrosion current density is lowered by 5 orders through being compared with that of the magnesium alloy, the magnesium alloy surface micro-arc oxidation/spray coating compound film has no damage after 72 to 144h of salt spray tests, and the corrosion resistance performance is good.

The invention discloses a half-dry rice noodle and a preparation method thereof. The half-dry rice noodle comprises the following raw materials: rice, a starch mixture, a fresh fruit and vegetable paste mixture and a fruit and vegetable powder mixture and is prepared by the following steps of fermentation and preprocessing of the rice, mixing of all raw materials, twin-screw extrusion forming, aging, re-steaming, washing and cutting oof noodles, measuring and packing, post-sterilization, cooling and the like. The half-dry rice noodle prepared by the invention has the advantages of smooth and bright appearance, strong gluten power, good elasticity, natural flavor, long shelf time, clear finished product soup and the like, the breaking rate is controlled to be lower than 2%, and the loss rate of cooking is controlled to be lower than 4%. According to the half-dry rice noodle and the preparation method thereof, the problem of the existing rice noodle of single nutrition is solved; the ingredients rich in protein and vitamins are added in the formula, so that the product has comprehensive nutrients; in addition, any preservative, brightening agent and thickening agent are not added in the product, so that the product prepared by the preparation method has excellent taste and is nutrient and healthy.

The invention relates to the technical field of high molecular materials and particularly relates to preparation and application methods of a selective laser sintering polypropylene powdery material. The method comprises the following steps: obtaining polypropylene powder by a freeze grinding method; grading and collecting by an airflow screening machine, selecting polypropylene powder with the granularity in a range of 200-800 meshes and returning coarse materials which do not meet the fineness requirement to a stock bin and continuously smashing; and adding 100 parts of polypropylene powder, 0.1-1 part of graphite powder, 0.01-0.5 part of antioxidant and 0.5-6 parts of metallic soap salt and uniformly mixing in a high speed mixer, wherein the granularity of the graphite powder is 1000-5000 meshes and the antioxidant is a compound antioxidant consisting of phenols and phosphonate or thioester in a weight ratio of 1:1. The polypropylene powder prepared by the invention has excellent sintering performance and the SLS (Selective Laser Sintering) formed piece prepared by the polypropylene powder has high mechanical property and dimensional precision.

The invention relates to a clay rubber nano-composite material used for the cover layer of a conveyor belt and a preparation method thereof. The material can be used to support the use of various large carrying capacity and long distance conveyors, and is widely used in metallurgy, mining, ports and other heavy industries. The preparation method of the clay rubber nano-composite material used forthe cover layer of a conveyor belt comprises: taking nano-clay and natural rubber to prepare nano-clay/natural rubber nano-composite masterbatch through an emulsion flocculation method, then adding synthetic rubber for plasticating, and then adding zinc oxide, stearic acid, an age resister, a coupling agent, and a reinforcing agent in order for first mixing, and adding sulphur as well as an accelerator for second mixing so as to obtain the product. The cover rubber of a conveyor belt manufactured with the clay rubber nano-composite material, and can have improved tensile strength, tearing resistance and shearing resistance, so that the service life of the conveyor belt can be prolonged. In the preparation process, the employment of a small amount of nano-clay and a lot of carbon black together to serve as a filling system can have an enhancing effect, and besides, the lamellar structure of the nano-clay can effectively inhibit gas and heat transfer, thus improving the thermo-oxidativeaging resistance, and making the conveyor belt difficult to age when used in an open-air environment for a long time.

The present invention relates to a glass fiber reinforced flame retardant polypropylene material for household appliance products, and belongs to the field of modified polypropylene plastic. The material comprises the following raw materials, by weight: a high-impact-resistance copolymer polypropylene resin, a bromine-based flame retardant agent, antimony trioxide, a flame retardant synergist, alkali-free continuous long glass fibers, a compatibility agent, a toughening agent, a lubricant, a UV absorber and an antioxidant. The present invention provides the glass fiber reinforced flame retardant polypropylene material with higher tensile strength, bending modulus and hardness as well as high impact-resistance, low molding shrinkage, aging resistance and the like. The glass fiber reinforced flame retardant polypropylene material has a high heat deformation temperature, good oxidation resistance at high temperature, and the flame retardant performance up to the level of UL94 V-2, and passes the glow wire test of GWIT: 700/3.0. The glass fiber reinforced flame retardant polypropylene material has a low cost and a light weight, and can be used instead of metal or plastic material to produce the household appliance products which need flame retardation and high temperature resistance.

The invention provides a method for treating farmland soil polluted by cadmium. The method integrates technical measurements such as seepage-proofing isolation, chemical stabilizing treatment, phytoremediation and the like, and comprises technical steps as follows: sampling detection, repairing range determination, dredging of river systems, surface soil stripping, bottom layer grinding, clay pavement, laying of a seepage-proofing isolating membrane, surface soil backfilling, addition of a chemical stabilizing agent, plant planting and harvesting, incineration and ashing, ash content stabilizing and curing treatment, terminal treatment and the like. The method for treating the farmland soil polluted by cadmium has the advantages of on-site treatment, simple process, convenience in construction, instant effect, high efficiency, low cost and the like, and is wide in popularization and application prospect.

The invention provides an inorganic dry powder texture coating, which comprises the following components in percentage by weight: 12 to 15 percent of gray calcium powder, 20 to 30 percent of quartz powder, 10 to 15 percent of quartz sand, 30 to 40 percent of coarse calcium powder, 0.5 to 0.6 percent of hydroxypropyl methyl cellulose (HPMC), 1 to 2 percent of redispersible emulsion powder, 1 to 2 percent of polyvinyl alcohol powder and 0.3 to 0.4 percent of wood fiber. The coating is environmentally-friendly, and most used raw materials are readily available inorganic materials, so that pollution caused by the volatilization of an organic solvent into the atmospheric air is avoided, and harm to body health and possible risks such as fire and the like during production, transportation, storage and construction of the coating are eliminated; the coating is easy and convenient to construct, can be directly constructed on a qualified substrate without any primer, is suitable for various construction tools and has good texture and a high decorating property, and pigments can be doped as required; and the coating has high weather resistance, is free from peeling, is cracking-resistant, is convenient to transport, and is suitable for building coating in various environments and under various climate conditions.

The invention discloses a glass fiber reinforced plastic curing agent composition and a glass fiber reinforced plastic composite material prepared by the same as well as a cable trough. The glass fiber reinforced plastic curing agent composition is formed by the following components in parts by weight: 50-60 parts of unsaturated polyester resin, 15-20 parts of aluminum hydroxide, 1-2 parts of zinc stearate, 0.2-0.5 part of de-molding agent, 0.5-1 part of benzoyl peroxide, 0.5-1 part of benzoyl peroxide tert-butyl ester, 0.1-0.2 part of antioxidant, 0.1-0.2 part of ultraviolet absorbent, and 0.1-0.2 part of antistatic agent. A glass fiber reinforced plastic material is prepared by an extruding and molding process. The glass fiber reinforced plastic material prepared by the curing agent composition disclosed by the invention is low in production cost, has light weight and high strength, and has good weather resistance even under an extreme hygrothermal environment.

The invention discloses a water-based energy storage luminescence floor coating, comprising a main agent and an amine curing agent, wherein, the main agent comprises epoxy resins, surface modified noctilucent powder, solid fillers, auxiliaries and solvents. The method is characterized by first evenly mixing the modified noctilucent powder, the epoxy resins, the solid fillers, the auxiliaries and the solvents in proportion, rubbing the mixture to obtain the main agents of the water-based energy storage luminescence floor coating, and then evenly mixing the main agent and the amine curing agentin proportion during coating.

The invention relates to a thermoplastic styrene-butadiene rubber water latex asphalt modifier and a preparation method thereof, belonging to the chemical engineering field. The modifier is made from the following raw materials in weight percentage: 10 to 70 percent of rubber, 0.1 to 30 percent of surfactant, 20 to 80 percent of water, 0.1 to 20 percent of natural polysaccharide polymer matter and 0.1 to 10 percent of electrolyte. The preparation method has the advantages of simplifying the production process of thermoplastic styrene-butadiene rubber SBS modified asphalt, saving equipment investment and simultaneously avoiding the material ageing phenomena caused when the thermoplastic styrene-butadiene rubber SBS modified asphalt is processed at a high temperature. Modified asphalt obtained by use of the modifier is stable in performance and difficult to segregate. The modifier can also be used in other aspects of the thermoplastic styrene-butadiene rubber SBS modified asphalt or modified emulsified asphalt.

The invention relates to a low-temperature resisting PVC composite hosepipe comprising components of, by weight: 80-100 parts of PVC resin, 60-80 parts of thermoplastic polyurethane elastomer, 30-40 parts of a plasticizer, 2-5 parts of a thermal stabilizer, 0.2-1.5 parts of a lubricant, 10-15 parts of a modifier, 1-3 parts of a processing auxiliary agent, 10-15 parts of an antistatic agent, 5-20 parts of a fire retardant, and 5-20 parts of modified nano-grade calcium carbonate. According to the invention, thermoplastic polyurethane elastomer, the plasticizer, the thermal stabilizer, the antistatic agent and the fire retardant are added to PVC resin, such that the low-temperature resistance, the flexibility, the antistatic performance and the fire retardance of the PVC hosepipe are enhanced. The comprehensive performance of the prepared PVC composite hosepipe is good, and the PVC composite hosepipe is not easily aged. Therefore, the PVC composite hosepipe can be applied in storage and application processes of low-temperature oil, gas or liquid.

The invention discloses a processing method for stabilized recombined quick-cooking brown rice, comprising the following steps: (1) taking paddy as a raw material, drying, cleaning, grading, removing stones, ridging paddy, and separating paddy from brown rice to obtain the brown rice; (2) smashing the brown rice, and regulating the moisture of the material to 15-30%; (3) adding or adding no food ingredients; (4) feeding the material obtained from the above step into an extruder for extruding, restructuring and prilling; and (5) drying, packaging and the like. In the processing method, the problems of short shelf life, long cooking time, rough taste, inconvenient eating and the like of the brown rice are solved. The brown rice processed with the method has the grain shape similar to natural brown rice, keeps the nutrient components of the natural brown rice, improves storage stability, improves processing and eating quality of the brown rice and improves the utilization and the added value benefit of the paddy.

The invention discloses a transparent heat insulation coating with nanoparticles and a preparation method thereof; the preparation method comprises the following steps: adding nanoscale powder slurry of aluminum oxide, silicon oxide, titanium oxide, zinc oxide, cerium oxide, iron oxide, ATO and the like in water-based acrylic emulsion, adjusting the pH value to 5.5-9.0, stirring with a machine for 30-60min while adding defoaming agent, dispersant and flatting agent, then stirring with a high speed stirrer for 20-40min and finally performing ultrasonic vibration for 30-60min to obtain the transparent heat insulation coating. The invention has low cost and simple production process, after the coating is coated to form a film, the film has good transmission of light and outstanding heat-shielding performance; the coating has better self-cleaning ability, good durability and good washing resistance and brushing resistance; and the film has long life, good stability and simple maintenance.

The invention discloses a waterproof material with polymer cement steel-base property, which is mixed by powder and liquid in weight proportion of 1: 0.8 to 1.2; the raw materials of the powder are cement, infiltrating crystallization masterbatch, methylcellulose, peach glue powder, quartz powder, plasticizer and pH-value regulator; the raw materials of liquid are acrylic acid waterproof emulsion, a dispersant, a preservative, an antioxidant, a film forming additive, water, a light calcium and styrene-butadier emulsion. The waterproof material with polymer cement steel-base property is finely bonded with concrete, is high in intensity and long in waterproof property, and is not easy to be etched chemically. Meanwhile, the waterproof material with polymer cement steel-base property has good compatibility when in use, which can be used synchronously with the batch feeder of concrete and cement; the construction base surface is not needed to be leveled and make a protection layer when the waterproof material with polymer cement steel-base property is in use, which is labor-saving and time-saving, and is an environmental-protection waterproof material with no toxic, no smell and no pollution.

The invention discloses an embedded wireless automatic scoring system and a scoring method thereof. The embedded wireless automatic scoring system comprises an image collecting and processing system in the target position and automatic scoring system in the position of a shooter. The mage collecting and processing system comprises a target sheet automatic control system that can automatically install target sheets and rotate target surfaces, as well as an image collecting and processing system that can collect and process target surface information. The image collecting and processing system is connected to the output end of the target sheet automatic control system. The scoring system in the position of the shooter comprises a user interactive system which is in the position of the shooter and can communicate with corresponding image collecting and processing system in the target position, and a score statistical system which is in the position of a referee and can communicate with all image collecting and processing systems in the target position. The image collecting and processing system in the target position communicates with the scoring system in the position of the shooter by means of a wireless transmission system. The embedded wireless automatic scoring system is capable of processing images in the target position so as to reduce the cost and meets the demand of most shooting programs through a wireless transmission technology. Besides, the embedded wireless automatic scoring system has the advantages of high precision, excellent indentifying capability, small size, etc.