119results about How to "Do not cause harm" patented technology

The invention provides a grapheme-coated sulfur/porous carbon composite material and a preparation method thereof, and relates to a grapheme-coated sulfur/porous carbon composite material used as the positive electrode material of a lithium-sulfur secondary battery and a preparation method thereof. The grapheme-coated sulfur/porous carbon composite positive electrode material provided by the invention can be used for solving the technical problem that the existing grapheme-coated sulfur-containing composite material used as the positive electrode material of a lithium-sulfur battery is low in electrochemical properties. The external surface of each of the particles of the grapheme-coated sulfur/porous carbon composite material provided by the invention is evenly covered with a graphene sheet, and a graphene conductive network is formed between the particles; the obtained grapheme-coated sulfur/porous carbon composite material has a hierarchical core-shell structure. The preparation method of the grapheme-coated sulfur/porous carbon composite material is obtained by adding a sulfur/porous carbon composite material to graphene slurry which is stable for a long time and in which graphene sheets are highly dispersed in water for mixing and coating. The positive electrode material has high specific capacity, long cycle life and excellent high-rate performance. Besides, the grapheme-coated sulfur/porous carbon composite material can be used as the positive electrode material of a lithium secondary battery.

The invention discloses a method and an apparatus for separating CO2 in biogas based on a hydrate process. The apparatus comprises a gas booster pump, a gas cooler, a hydrate reaction kettle, a hydrate slurry heater, a liquid booster pump, a liquid cooler, a gas chromatograph, a data acquisition and processing unit, valves and a pipeline; the hydrate reaction kettle is inside plated with a titanium layer for preventing more and more hydrate from being aggregated on the wall of the reaction kettle and solving the problems that a hydrate slurry in a hydrate separation gas is aggregated in the reaction kettle and circulation is not smooth; and the hydrate reaction kettle employs an outer jacket cooling and inner coil pipe cooling method, and also is coated with a thermal-insulation material layer at the outside, so that a large cooling environment in the hydrate reaction process is guaranteed, heat loss is reduced, and also the temperature in the hydrate reaction kettle is uniform. The apparatus structure is simple, the technology is relatively simple, more energy is saved, and the separation effect on biogas is relatively good.

The invention relates to a degradable environment-friendly plant fiber product and a manufacturing method of the degradable environment-friendly plant fiber product, in particular to a flowerpot, tableware, a compressed panel or a tray made of the degradable environment-friendly plant fiber and the manufacturing method of the flowerpot, the tableware, the compressed panel or the tray made of the degradable environment-friendly plant fiber. The raw materials comprise plant fibers from crop straws, food processing wastes, annual wild plant stem parts, bamboos, and woods. The raw materials are added with modified starch and organic pigments to be molded at high temperature to produce the plant fiber product. The degradable environment-friendly plant fiber product has the advantages that the main raw materials can be completely from the wastes of agricultural products; the materials are simple; the cost is low; the product is green and environment-friendly and can be naturally degraded in a natural environment; the production method is simple and high-efficiency; and the product is mild in surface color, high in strength, waterproof and not easy to deform, and can be used for substituting the current products made of plastic, argil and wood, so that the plant fiber product is an ideal degradable environment-friendly plant fiber product.

The invention discloses an organic fertilizer with an insect expelling function. The organic fertilizer is prepared from the following raw materials in parts by weight: 5-6 parts of Chinese honey locust, 150-155 parts of fresh sheep manure, 10-15 parts of soybeans, 1-2 parts of garlic, 1-2 parts of clove, 1-2 parts of oil residues, 10-20 parts of waste fruit, melon and vegetable peel, 10-20 parts of fish meal, 5-7 parts of radish peel, 1-2 parts of cassava alcohol residues, 4-6 parts of castor cakes, 5-7 parts of poria cocos, 4-6 parts of astragalus membranaceus, 1-2 parts of pepper leaves, 0.01-0.02 part of trichlorfon, 1-2 parts of red-spotted stonecrop, 2-6 parts of typhonium giganteum, 1-2 parts of radix aconiti agrestis and 0.4-0.5 part of an EM fungicide. The organic fertilizer is prepared through secondary fermentation treatment, is easy in obtaining raw materials, is convenient to use, comprehensive in nutrition, has the functions of yield increase and insect expelling, can do no harm to the soil environment, and is free of pollution or agricultural residues.

The invention belongs to the field of material preparation and processing, and relates to a method for preparing a metal material with controllable long and deep through holes. The preparation method comprises the steps of selecting fibers, preparing a preform, and melting and pouring the metal material. The method has the advantage of solving the problems of incontrollable hole diameter, hole depth and distribution of the material with long and deep through holes, and can be used for preparing the metal material with controllable position, porosity, diameter and ratio of depth to diameter of long and deep through holes; the diameter of the long and deep through holes of the prepared material is 0.01-10mm, and the ratio of depth to diameter is 1-500. The preparation of the metal material with the long and deep through holes is simple in process and low in cost, and is easy for industrialization.

The invention relates to a low-temperature disinfection method and relative device, wherein it can disinfect the polluted tools and medical device. It uses ultrasonic wave, ultraviolet and ozone, with the disinfection agent in water solution to clean and disinfect the tools. The invention has wide application.

The invention discloses an environment-protective leather abluent, which comprises the following parts: 90-97.5% Chinese honey locust and peppertree extract liquid, 1-5% acetate triethanolamine, 1-3% carbowax 6000 and 0.5-2% pingpingjia. The invention makes color fresh on the leather, which protects leather effectively.

The invention relates to a high-strength waterproof gypsum board, which is characterized in that the high-strength waterproof gypsum board consists of 100 weigh portions of semi-hydrated gypsum powder, a proper amount of reticulated polypropylene fiber, 10 weight portions of polymer emulsion, 1 weight portion of expanded perlite, 5 weight portions of glass fiber, 2 weight portions of magnesia, 3 weight portions of calcium oxide, and 68 weight portions of industrial water. The high-strength waterproof gypsum board has the following main characteristics that: 1) the gypsum board has high strength and long service life; 2) the gypsum board is dampproof and waterproof, and effectively prevents from loosening and falling; 3) the gypsum board has no toxicity and pollution, and cannot cause the harm to people and environment; and 4) the gypsum board has simple process and convenient operation.

The invention discloses an environment-friendly release paper and a preparation method thereof. The environment-friendly release paper includes a base paper layer and a pre-coat layer and a release layer coated on its surface in sequence. The raw materials of the base paper layer include: inorganic powder materials, wood Powder, high molecular polymer, lubricant, foaming agent, active agent, anti-sticking agent; The raw materials of pre-coat paint include water, pigment, dispersant, adhesive, thickener, surfactant according to weight parts; isolation The raw materials of the layer coating according to weight include: water-based high molecular polymer, adhesion promoter, photoinitiator, and leveling agent. The invention has low cost, and the prepared release paper has the characteristics of waterproof, moisture-proof and high strength. It does not use polyolefin materials and solvent-based release agents, is pollution-free, easy to recycle, and does not cause harm to the environment. The used pre-coating paint is solid High content, high viscosity, fast drying speed, high production efficiency, low energy consumption, good film-forming performance of the isolation layer coating used, suitable for advanced curtain coating methods.

The invention discloses a sublimation transfer printing process for natural fabrics or rayon. The process comprises the following steps: printing a layer of surface treating agents on cloth, and drying; and printing transfer paper coated with patterns to the cloth printed with the surface treating agents for cooling under the conditions of the temperature of 180-220 DEG C, the pressure of 6-15KG per square inch and the time of 15-20 seconds, and cooling. According to the sublimation transfer printing process, the color and the cloth are totally natural in the process of printing natural fibers, rayon and Leisel cloth, the cloth is non-tactile, is extremely soft in handfeel and vivid in effect, is just like a photo, is almost as vivid as colored rough sketch, is basically not discolored after washing and is also bright and beautiful. In the pretreatment link, only the surface treating agents are sprayed or printed, washing is not needed, only drying is needed, and any damage to the environment is avoided.

The invention discloses printing ink with good color fixation and no penetration. The printing ink is characterized by being prepared from the following raw materials in parts by weight: 20-30 parts of edible alcohol, 1-2 parts of table salt, 0.4-0.8 part of potassium sorbate, 0.02-0.04 part of chamomile essential oil, 3-6 parts of soybean oil, 4-6 parts of castor oil, 7-9 parts of soybean residue, 2-5 parts of castor shells, 3-5 parts of chestnut shells, 1.2-2.5 parts of xanthan gum, 6-8 parts of maltose syrup, 0.03-0.06 part of capsanthin, 13-16 parts of monascus colors and 5-7 parts of additives. The printing ink prepared by adopting the soybean oil, castor oil, soybean residue, castor shells, chestnut shells, monascus colors and other pure natural substances and taking the xanthan gum as a thickening emulsifier has the advantages of good color fixation, no penetration, strong alkali resistance, water resistance, oil resistance, freezing resistance and the like. the printing ink disclosed by the invention can be directly printed on the surfaces of foods and medicines, has bright color, stable performances and good flowability, viscosity and adhesion, is easy to recycle, does not cause great harm to an environment and human bodies, and can meet the color printing needs and meet the eating requirements of a related standard designated by the state.

The invention relates to a potassium decaborate fertilizer and a preparation method thereof. The method comprises the following steps: a polymerized potassium boron salt potassium decaborate as the main component is prepared by high temperature polyreaction between potassium chloride, potassium bromide, potassium fluoride, potassium iodide or potassium hydroxide and boric acid; the polymerized potassium boron salt is then processed and compounded to prepare the potassium decaborate fertilizer. The product of the invention can be widely applied to various crops.

The invention discloses a method for clearing fouling organisms in a saltwater fish aquaculture net cage. Fish fry is firstly thrown in the saltwater fish aquaculture net cage, wherein cantherines modestus is polycultured according to according to the ratio of 3-8% of cultured fish fry, preferably 5%, at the beginning of cultivation; the individual size of polycultured cantherines modestus is slightly greater than that of the cultured fish fry; and the overall length accounts for 1.3-1.5 times of the overall length of the cultured fish fry. Through the polyculture of cantherines modestus according to a certain ratio, Cantherines modestus continuously ingests the fouling organisms on a net body of the saltwater fish aquaculture net cage so as to continuously clear the net body; the fouling organisms on the net body can be completely removed basically; therefore, the frequency of replacement of the net body of the net cage is reduced, the injuries and disturbances of the cultured fish are effectively reduced, and the risk of diseases of the cultured fish is decreased.

The invention discloses a thermal-insulating composite building coating for an external wall and a preparation method of the coating. The coating is prepared from components in parts by mass as follows: 40-50 parts of expanded perlite, 8-12 parts of aragonite sand powder, 8-12 parts of liquid sodium silicate, 2-4 parts of liquid potassium silicate, 3-7 parts of silica sol, 3-7 parts of deionized water, 2-4 parts of liquid lithium silicate, 3-7 parts of inorganic acid, 3-5 parts of an expanding agent, 8-12 parts of plant fiber powder and 8-12 parts of water. The thermal-insulating composite building coating for the external wall has the characteristics of low preparation cost, good effect and environment friendliness; tests show that the thermal conduction coefficient of the composite coating is 0.117 W/(m*K), and the density is 700-800 kg/m<3>. The coating is suitable for external thermal-insulation plastering engineering and internal thermal-insulation plastering engineering of walls, built by using reinforced concrete, aerated concrete, laid bricks, sintered bricks, non-sintered bricks and the like, of multistory and high-rise buildings and is also suitable for thermal-insulation improvement engineering of various old buildings currently.

The invention relates to the technical field of an artificial turf and particularly relates to a flame-retardant composition, a preparation method thereof, an artificial grass yarn, an artificial turfbacking adhesive and an artificial turf. The flame-retardant composition contains the following components in parts by mass: 10-30 parts of a nitrogen-containing flame retardant, 40-60 parts of a bromine-containing flame retardant, 5-10 parts of a flame-retardant aid A and 1-3 parts of a flame-retardant aid B, wherein the nitrogen-containing flame retardant is melamine cyanurate, the bromine-containing flame retardant is any one of decabromodiphenyl ethane, octabromoether and ethylene ditetrabromo-o-phenylenimide, the flame-retardant aid A is antimonous oxide or sodium antimonide, and the flame-retardant aid B is 2,3-dimethyl-2,3-diphenylbutane. The flame-retardant composition has a good flame-retardant effect and is applied to the flame retardance of the artificial grass yarn so as to realize an automatic extinguishing effect away from the fire, and the artificial grass yarn has relatively good aging resistance and mechanical property.