Nanobiology will be applied to packaging and food packaging machinery
the emergence of nanobiology provides a new platform for the development of food engineering. Nanotechnology makes genetic engineering more controllable. People can make a variety of nano biological "products" that are easy for human body to absorb according to their own needs. Therefore, agriculture, forestry, animal husbandry, sideline and fishery may also undergo profound changes, and human food structure will also change accordingly. The "food" synthesized by nano biological engineering and chemical engineering will greatly enrich the quantity and variety of food, and the corresponding packaging and food machinery will also emerge as the times require
because nano ceramics have good wear resistance, high strength and strong toughness, they can be used to manufacture sealing rings and bearings of cutting tools, packaging and food machinery to improve their wear resistance and corrosion resistance. It can also be used to make the surface coating of key components of conveying machinery and boiling drying bed
some people in Tokyo, Japan have successfully developed self-cleaning glass and self-cleaning ceramic tiles in the laboratory. There is a thin layer of Nano-TiO2 on its surface. Under the irradiation of light, any substances adhering to the surface, including oil stains and bacteria, further oxidize these hydrocarbons into gases or substances that are easy to be wiped off due to the catalysis of nano-TiO2. TiO2 can be used to make packaging containers, boxes of food machinery and production workshops
the special non polluting wear-resistant transparent coating made of nano silicon-based ceramics by a German Research Institute, which is coated on glass, plastic and other objects, has the functions of antifouling, dust prevention, scratch resistance, wear resistance, fire prevention and so on. It can be used for the surface coating of parts in direct contact with food on packaging and food machinery
nano SiC and Si3N4 have strong absorption of infrared ray in a wide wavelength range, and can be used as infrared wave absorption and transmission materials to make functional films or fibers. Nano Si3N4 amorphous block has selective absorption from yellow light to near-infrared light, and can also be used as special window materials. The transmission loss of optical fiber made of nano SiO2 to light with wavelength above 600nm is less than 10dB/km, The micron thick multilayer interference film made of nano SiO2 and nano TiO2 has good light transmittance and strong ability to reflect infrared rays. Compared with traditional halogen lamps, it can save 15% of electric energy. These characteristics can be used in infrared drying and infrared sterilization equipment of food machinery
research has proved that TiO2 with a wavelength of 30 ~ 40nm is dispersed into the resin to make a film, which becomes an ultraviolet absorbing material with strong absorption capacity for light below 400nm wavelength, and can be used as the best raw material for food sterilization bags and fresh-keeping bags
nano SiO2 photocatalytic degradation of organic matter water treatment technology has no secondary pollution and high purity. Its advantages are: 1. It has a huge specific surface area, which can absorb organic matter on its surface to the greatest extent; 2. It has stronger ultraviolet absorption ability, so it has stronger photocatalytic degradation ability, and can quickly decompose the organic matter adsorbed on its surface. This provides strong technical support for food enterprises with large sewage treatment capacity
mesoporous solids and mesoporous complexes are attractive research objects in the field of Nano Materials Science in recent years. Due to their high porosity (pore size of 2 ~ 50nm) and high specific surface area, this material has important application prospects in adsorption, filtration and catalysis. It also provides a broad development space for membrane filtration and sterilization equipment such as purified water and soft drinks
the working environment of food machinery is poor, and there are high requirements for lubricants, which are usually easy to lose and pollute the environment. The size of magnetic particles in the magnetic fluid is only 10nm, so it will not damage the bearing, and the base fluid can also use lubricating oil. As long as a suitable magnetic field is used, the magnetic lubricating oil can be restrained in the required parts, ensuring the normal operation of the machine
nano magnetic refrigerant. The development trend of magnetic refrigeration is from low temperature to high temperature, forming magnetic nanoclusters. When the temperature is greater than 15K, its magnetic entropy change is higher than GGG (gd3ga5012), becoming the best magnetic refrigeration working medium in the temperature range of 15 ~ 30K. In 1997, the United States developed a magnetic refrigerator with CD as the working medium of magnetic refrigeration by using the refrigeration method of magnetic entropy change of spin system. Compared with the usual compressed gas refrigeration, it has the advantages of high efficiency, low power consumption, low noise, small size, no pollution and so on. This has opened up a new way for food freezing and refrigeration equipment
rubber and plastic are raw materials that are widely used in packaging and food machinery. However, the strength, wear resistance and aging resistance of rubber are usually improved by adding carbon black. The products are black, which is not suitable for food machinery. The advent of nano materials has solved the problem of reducing the energy consumption of 100 million tons of standard coal. All indicators of the new nano modified rubber have been greatly improved, especially the anti-aging performance has been improved by 3 times, the service life is more than 30 years, and the color is bright, and the color retention effect is excellent. Ordinary plastics have large output, wide application and low price, but their performance is inferior to engineering plastics. Although engineering plastics have superior performance, their high price limits their wide application in packaging and food machinery to meet the needs of users. The common plastic polypropylene is modified with nano materials, which meets the performance index of engineering plastic nylon 6. With good process performance and low cost, it can be widely used
the above only lists the applications of nano materials in packaging and food machinery in several aspects, but it has fully shown the pivotal position of nano technology and materials. It is believed that with the efforts of technicians in the packaging and food industry to explore and develop, there will be more layers of nano materials in the composite extrusion process, which will be more brilliant and eye-catching tomorrow
The emergence of nanobiology provides a new platform for the development of food engineering. Nanotechnology makes genetic engineering more controllable. People can make a variety of nano biological "products" that are easy for human body to absorb according to their own needs. Therefore, agriculture, forestry, animal husbandry, sideline and fishery may also undergo profound changes, and human food structure will also change accordingly. The "food" synthesized by nano biological engineering and chemical engineering will greatly enrich the quantity and variety of food, and the corresponding packaging and food machinery will also emerge as the times requirebecause nano ceramics have good wear resistance, high strength and strong toughness, they can be used to manufacture sealing rings and bearings of cutting tools, packaging and food machinery to improve their wear resistance and corrosion resistance. It can also be used to make the surface coating of key components of conveying machinery and boiling drying bed
some people in Tokyo, Japan have successfully developed self-cleaning glass and self-cleaning ceramic tiles in the laboratory. There is a thin layer of Nano-TiO2 on its surface. Under the irradiation of light, any substances adhering to the surface, including oil stains and bacteria, further oxidize these hydrocarbons into gases or substances that are easy to be wiped off due to the catalysis of nano-TiO2. TiO2 can be used to make packaging containers, boxes of food machinery and production workshops
the special non polluting wear-resistant transparent coating made of nano silicon-based ceramics by a German Research Institute, which is coated on glass, plastic and other objects, has the functions of antifouling, dust prevention, scratch resistance, wear resistance, fire prevention and so on. It can be used for the surface coating of parts in direct contact with food on packaging and food machinery
nano SiC and Si3N4 have strong absorption of infrared ray in a wide wavelength range, and can be used as infrared wave absorption and transmission materials to make functional films or fibers. Nano Si3N4 amorphous block has selective absorption from yellow light to near-infrared light, and can also be used as special window materials. The transmission loss of optical fiber made of nano SiO2 to light with wavelength above 600nm is less than 10dB/km, The micron thick multilayer interference film made of nano SiO2 and nano TiO2 has good light transmittance and strong ability to reflect infrared rays. Compared with traditional halogen lamps, it can save 15% of electric energy. These characteristics can be used in infrared drying and infrared sterilization equipment of food machinery
research has proved that TiO2 with a wavelength of 30 ~ 40nm is dispersed into the resin to make a film, which becomes an ultraviolet absorbing material with strong absorption capacity for light below 400nm wavelength, and can be used as the best raw material for food sterilization bags and fresh-keeping bags
nano TiO2 photocatalytic degradation of organic matter water treatment technology has no secondary pollution and high degree of purification. Its advantages are: 1. It has a huge specific surface area, which can maximize the adsorption of organic matter on its surface; 2. It has stronger ultraviolet absorption ability, so it has stronger photocatalytic degradation ability, and can quickly decompose the organic matter adsorbed on its surface. This provides strong technical support for food enterprises with large sewage treatment capacity
mesoporous solids and mesoporous complexes are attractive research objects in the field of Nano Materials Science in recent years. Due to their high porosity (pore size of 2 ~ 50nm) and high specific surface area, this material has important application prospects in adsorption, filtration and catalysis. It also provides a broad development space for membrane filtration and sterilization equipment such as purified water and soft drinks
the working environment of food machinery is poor, and there are high requirements for lubricants, which are usually easy to lose and pollute the environment. The size of magnetic particles in the magnetic fluid is only 10nm, so it will not damage the bearing, and the base fluid can also use lubricating oil. As long as a suitable magnetic field is used, the magnetic lubricating oil can be restrained in the required parts, ensuring the normal operation of the machine
nano magnetic refrigerant. The development trend of magnetic refrigeration is from low temperature to high temperature, forming magnetic nanoclusters. When the temperature is greater than 15K, its magnetic entropy change is higher than GGG (gd3ga5012), becoming the best magnetic refrigeration working medium in the temperature range of 15 ~ 30K. In 1997, the United States developed a magnetic refrigerator with CD as the working medium of magnetic refrigeration by using the refrigeration method of magnetic entropy change of spin system. Compared with the usual compressed gas refrigeration, it has the advantages of high efficiency, low power consumption, low noise, small size, no pollution and so on. This has opened up a new way for food freezing and refrigeration equipment
rubber and plastic are raw materials that are widely used in packaging and food machinery. However, the strength, wear resistance and aging resistance of rubber are usually improved by adding carbon black. The products are black, which is not suitable for use in food machinery. The advent of nano materials has solved this problem. All indicators of the new nano modified rubber have been greatly improved, especially the anti-aging performance has been improved by 3 times, the service life is more than 30 years, and the color is bright, and the color retention effect is excellent. Ordinary plastics have large output, wide application and low price, but their performance is inferior to engineering plastics. Although engineering plastics have superior performance, their high price limits their wide application in packaging and food machinery. Common plastic polypropylene is modified with nano materials to reach the engineering plastic nylon? Sex of 6 "Zibo is the capital of materials and the energy index of porcelain, and it has good process performance and low cost, so it can be widely used.
the above only lists the applications of nano materials in packaging and food machinery in several aspects, but it has fully shown that nano technology and materials play an important role. It is believed that with the efforts of technicians in the packaging and food industry to explore and develop, the future of nano materials will be more brilliant and dazzling.
information source: Jiagong electromechanical
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