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Due to its good wear resistance, high strength and high toughness, nano-ceramics can be used to manufacture seal rings, bearings and the like for cutting tools, packaging and food machinery to improve their wear resistance and corrosion resistance. It can also be used to make surface coatings for key parts of Conveyor machinery and boiling drying beds. ;
Self-cleaning glass and self-cleaning ceramic tiles have been successfully developed in the laboratory in Tokyo, Japan. The surface has a thin layer of nano-TiO2. Under the illumination of light, any substances that are contaminated on the surface, including oil stains and bacteria, can further oxidize these hydrocarbons into gas or be easily rubbed due to the catalytic action of nano-TiO2. Material that is lost. TiO2 can be used to make packaging containers, food machinery cabinets, and production workshops. ;
In Germany, a special non-polluting wear-resistant transparent coating made of nano-silicon-based ceramics is applied to objects such as glass and plastic, and has functions such as anti-fouling, dust-proof, scratch-resistant, wear-resistant and fireproof. A surface coating that can be used in packaging and food machinery parts that are in direct contact with food. ;
Nano-SiC and Si3N4 have strong absorption of infrared light in a wide wavelength range. They can be used as infrared absorbing and wave-transparent materials to form functional films or fibers. Nano-Si3N4 amorphous blocks have yellow to near-infrared Selective absorption of light can also be used for special window materials. Fibers made of nano-SiO2 have a transmission loss of less than 10 dB/km for wavelengths above 600 nm, and micron-thick multilayer interference films made of nano-SiO2 and nano-TiO2. It has good light transmission and strong infrared reflection ability, which can save 15% of electric energy compared with traditional halogen lamps. These properties can be used in infrared drying and infrared sterilization equipment for food machinery. ;
It has been proved that the TiO2 of 30-40 nm is dispersed into the resin to form a thin film, which becomes an ultraviolet absorbing material which has strong absorption ability to light below 400 nm wavelength, and can be used as the best raw material for food sterilization bags and fresh-keeping bags. ;
Nano-SiO2 photocatalytic degradation of organic water treatment technology without secondary pollution, high purity, its advantages are: 1, with a large specific surface area, can maximize the adsorption of organic matter on its surface; 2, with stronger UV absorption The ability to have a stronger photocatalytic degradation ability can quickly decompose organic matter adsorbed on its surface. This provides strong technical support for food companies with large sewage treatment capacity. ;
Mesoporous solids and mesoporous composites are attractive research objects in the field of nanomaterials science in recent years. Due to the high porosity (hole size 2~50nm) and high specific surface area of ​​this material, adsorption, There are important application prospects in filtration and catalysis. It also provides a broad space for the development of membrane filtration and sterilization equipment such as pure water and soft drinks. ;
Food machinery has a harsh working environment and requires high lubricants. Usually, lubricants are easily worn out and pollute the environment. The magnetic particles in the magnetic liquid are only 10 nm in size, so the bearing will not be damaged, and the base liquid can also be lubricated. As long as a suitable magnetic field is used, the magnetic lubricating oil can be restrained at a desired position to ensure the normal operation of the machine. ;
Nano magnetic refrigerant. The development trend of magnetic refrigeration is from low temperature to high temperature, which constitutes magnetic nano-clusters. When the temperature is higher than 15K, its magnetic entropy becomes higher than GGG (Gd3Ga5012), which becomes the best magnetic refrigeration for 15~30K temperature zone. quality. In 1997, the United States used the cooling method of the magnetic entropy of the spin system to develop a magnetic refrigerator with Cd as a magnetic refrigerant. Compared with the conventional compressed gas type cooling method, it has the advantages of high efficiency, low power consumption, low noise, small volume, and no pollution. This opens up new avenues for food freezing and refrigeration equipment. ;
Rubber and plastics are the raw materials for packaging and food machinery applications. However, the usual rubber is to increase its strength, wear resistance and aging resistance by adding carbon black. The product is black and is not suitable for use in food machinery. The advent of nanomaterials has solved this problem. The new nano-modified rubber has greatly improved various indexes, especially the anti-aging performance has been improved by 3 times, the service life has been more than 30 years, and the color is gorgeous 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, they are expensive, which limits their wide application in packaging and food machinery. The nano-material is used to modify the ordinary plastic polypropylene to achieve the performance index of the engineering plastic nylon 6, and the process performance is good, the cost is low, and it can be widely used. ;
The above mentioned the application of nanomaterials in packaging and food machinery in only a few aspects, but it has fully demonstrated the importance of nanotechnology and materials. It is believed that under the efforts of technicians in the packaging and food industry, the future of nanomaterials will be even more dazzling. ;
The emergence of nanobiology has provided a new platform for the development of food engineering. Nanotechnology makes genetic engineering more controllable. People can create a variety of nano-biological “products†that are easy to absorb by the human body according to their own needs. Agricultural, forestry, animal husbandry, deputy, and fisheries may also undergo profound changes. The food structure will also change. The "food" synthesized by nano-bioengineering and chemical engineering will greatly enrich the quantity and variety of foods, and the packaging and food machinery that will adapt to it will also emerge. ;
Due to its good wear resistance, high strength and high toughness, nano-ceramics can be used to manufacture seal rings, bearings and the like for cutting tools, packaging and food machinery to improve their wear resistance and corrosion resistance. It can also be used to make surface coatings for key parts of conveyor machinery and boiling drying beds. ;
Self-cleaning glass and self-cleaning ceramic tiles have been successfully developed in the laboratory in Tokyo, Japan. The surface has a thin layer of nano-TiO2. Under the illumination of light, any substances that are contaminated on the surface, including oil stains and bacteria, can further oxidize these hydrocarbons into gas or be easily rubbed due to the catalytic action of nano-TiO2. Material that is lost. TiO2 can be used to make packaging containers, food machinery cabinets, and production workshops. ;
In Germany, a special non-polluting wear-resistant transparent coating made of nano-silicon-based ceramics is applied to objects such as glass and plastic, and has functions such as anti-fouling, dust-proof, scratch-resistant, wear-resistant and fireproof. A surface coating that can be used in packaging and food machinery parts that are in direct contact with food. ;
Nano-SiC and Si3N4 have strong absorption of infrared light in a wide wavelength range. They can be used as infrared absorbing and wave-transparent materials to form functional films or fibers. Nano-Si3N4 amorphous blocks have yellow to near-infrared Selective absorption of light can also be used for special window materials. Fibers made of nano-SiO2 have a transmission loss of less than 10 dB/km for wavelengths above 600 nm, and micron-thick multilayer interference films made of nano-SiO2 and nano-TiO2. It has good light transmission and strong infrared reflection ability, which can save 15% of electric energy compared with traditional halogen lamps. These properties can be used in infrared drying and infrared sterilization equipment for food machinery. ;
It has been proved that the TiO2 of 30-40 nm is dispersed into the resin to form a thin film, which becomes an ultraviolet absorbing material which has strong absorption ability to light below 400 nm wavelength, and can be used as the best raw material for food sterilization bags and fresh-keeping bags. ;
Nano-TiO2 photocatalytic degradation of organic water treatment technology without secondary pollution, high purity, its advantages are: 1, with a large specific surface area, can maximize the adsorption of organic matter on its surface; 2, with stronger UV absorption The ability to have a stronger photocatalytic degradation ability can quickly decompose organic matter adsorbed on its surface. This provides strong technical support for food companies with large sewage treatment capacity. ;
Mesoporous solids and mesoporous composites are attractive research objects in the field of nanomaterials science in recent years. Due to the high porosity (hole size 2~50nm) and high specific surface area of ​​this material, adsorption, There are important application prospects in filtration and catalysis. It also provides a broad space for the development of membrane filtration and sterilization equipment such as pure water and soft drinks. ;
Food machinery has a harsh working environment and requires high lubricants. Usually, lubricants are easily worn out and pollute the environment. The magnetic particles in the magnetic liquid are only 10 nm in size, so the bearing will not be damaged, and the base liquid can also be lubricated. As long as a suitable magnetic field is used, the magnetic lubricating oil can be restrained at a desired position to ensure the normal operation of the machine. ;
Nano magnetic refrigerant. The development trend of magnetic refrigeration is from low temperature to high temperature, which constitutes magnetic nano-clusters. When the temperature is higher than 15K, its magnetic entropy becomes higher than GGG (Gd3Ga5012), which becomes the best magnetic refrigeration for 15~30K temperature zone. quality. In 1997, the United States used the cooling method of the magnetic entropy of the spin system to develop a magnetic refrigerator with Cd as a magnetic refrigerant. Compared with the conventional compressed gas type cooling method, it has the advantages of high efficiency, low power consumption, low noise, small volume, and no pollution. This opens up new avenues for food freezing and refrigeration equipment. ;
Rubber and plastics are the raw materials for packaging and food machinery applications. However, the usual rubber is to increase its strength, wear resistance and aging resistance by adding carbon black. The product is black and is not suitable for use in food machinery. The advent of nanomaterials has solved this problem. The new nano-modified rubber has greatly improved various indexes, especially the anti-aging performance has been improved by 3 times, the service life has been more than 30 years, and the color is gorgeous 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, they are expensive, which limits their wide application in packaging and food machinery. The nano-materials are used to modify ordinary plastic polypropylene to achieve the performance index of engineering plastic nylon-6, and the process performance is good and the cost is low, which can be widely used. ;
The above mentioned the application of nanomaterials in packaging and food machinery in only a few aspects, but it has fully demonstrated the importance of nanotechnology and materials. It is believed that under the efforts of technicians in the packaging and food industry, the future of nanomaterials will be even more dazzling.
Nanobiology will be applied to packaging and food packaging machinery
The emergence of nanobiology has provided a new platform for the development of food engineering. Nanotechnology makes genetic engineering more controllable. People can create a variety of nano-biological “products†that are easy to absorb by the human body according to their own needs. Agricultural, forestry, animal husbandry, deputy, and fisheries may also undergo profound changes. The food structure will also change. The "food" synthesized by nano-bioengineering and chemical engineering will greatly enrich the quantity and variety of foods, and the packaging and food machinery that will adapt to it will also emerge.