In recent years, many countries in the world have stepped up the development and utilization of deep processing of agricultural and sideline products in order to improve the overall efficiency of agriculture. The use of agricultural and sideline products to produce environmentally friendly packaging materials has become a research hotspot in the field of scientific research.
At present, the application of "biodegradable resin" to replace existing plastic packaging is in full swing. Corn is a delicious and nutritious food, it is also widely used in the manufacture of sweeteners and animal feed. As technology advances, scientists have found that using corn can create a variety of plastic products. For example, corn starch resin, which has been successfully researched in Japan and Taiwan in recent years, is a new type of green environmental protection material. This kind of resin is made of corn as raw material, processed and plasticized, and it can be used to make a variety of disposable articles, such as cups, plastic bags, and commodity packaging. According to experiments, this packaging material can be disposed of through burning, biochemical decomposition, and insect feeding, thus eliminating the "white pollution" hazard.
Today, many large companies abroad are optimistic about this new environmentally friendly material. For example, Coca Cola used 500,000 disposable cups at the Winter Olympics in Salt Lake City, all of which were made of corn and plastic; the cups disappeared in open air in just 40 days. The famous Japanese electrical manufacturer, Sony Corporation, has been packing MD disks with plastic paper made from corn for two years. The new packaging is as beautiful as the previous packaging, but it will not produce the "durable" adverse effects.
So, how did corn become a plastic product? Visit the corn plastics factory of Cargill Road Co., Nebraska, USA and you will see the whole process of turning corn into plastic. First of all, the sugar in the corn is extracted, and carbon, which is the base material for making plastics and fibers, is extracted through fermentation and distillation, and then processed into a fine particle with a diameter of 4.57 mm called polylactide (PLA). Finally, these small particles are pressed into bags, foam or tableware.
According to Cargill Dow, corn, one of the major agricultural products in the United States, has ample supply, and it will not be a problem to extract 1 billion pounds (454 million tons) of polylactide each year over the next decade. This means that one-tenth of the U.S. corn production will be made into plastics and fibers.
According to recent information released by Taiwan in China, at present, the number of plastic bags produced in Taiwan per ton of corn resin is almost the same as that produced by plastic pellets. According to statistics from the Taiwanese plastics industry, about 100 million tons of plastic products are produced each year in the world, and 30 million tons of disposable packaging materials are used each year. Solving the pollution caused by these materials will cost a lot of social costs. If corn resin can successfully replace some of the packaging plastics, it is estimated that there will be a market worth US$10 billion annually.
Perhaps seeing the bright future of this new material, DuPont, the giant in chemical production, has also joined the ranks of developing corn plastics. The company’s research also received US$19 million in financial support from the US Department of Energy.
Although corn plastic is very environmentally friendly, it also has a significant drawback - expensive. For example, the price of corn plastic plates produced by North American bio-company is about 5% higher than that of traditional plastic plates, and the price of cups is even higher by 25%. However, the company's president, Frederick Hill, believes that within five years, as the demand for corn plastics increases, the scale of production will expand and costs will drop.
Food science experts from the U.S. Department of Agriculture have also recently announced that a new environment-friendly food packaging material is expected to come out. This new type of environmentally friendly packaging material is completely made of crushed strawberries, so it is very environmentally friendly and may replace traditional polyethylene plastic film and become a new material for food packaging. According to Tara McHugh, a food expert of the U.S. Department of Agriculture, this newly developed food packaging material is no different from traditional products in terms of performance. Food packaging films made with it can also stop oxygen. Infiltration, so as to achieve the effect of food preservation. Since the composition of this new material is mainly derived from vegetables and fruits that are not suitable for consumption, it is a naturally decomposable and environmentally friendly material. In testing, packaging films made from this “magic†material not only served to preserve freshness, but also improved the taste of fruits such as bananas and apples. McHugh said that in the near future, not only can strawberries be used as packaging materials, but also vegetables and fruits such as carrots and broccoli can be used as packaging materials. There is no doubt that the successful application of this new packaging material and other similar materials will revolutionize the food packaging industry.
Kargil Dow Polymers, a joint venture between Japan's Cargill and Dow Chemical, has also succeeded in making packaging materials from natural plants such as corn or wheat. This packaging material is named "Polylactide Natural Product" and can be used to make paper cups, candy wrappers, etc. It has good hand feeling, high elasticity and resistance to fouling.
According to reports, Kargil Polymers first extracted unrefined natural sugar dextrose from natural crops such as corn or wheat, followed by fermentation of dextrose to lactic acid, and then cold-formed lactic acid. For the lactide material, the lactide is finally melted to form a long molecular chain of a polymer called polylactide. The use of polylactide polymers with such long molecular chains can not only produce packaging materials, but also have low cost, can be decomposed spontaneously under hot and humid conditions, and will not cause environmental pollution.
In China, the development of new packaging materials has also achieved certain results. For example, Hubei Wuhan Futuo Environmental Packaging Materials Co., Ltd. and Wuhan Jinfeng Environmental Plastics Co., Ltd. have mastered the technology of processing deteriorating grain into earthquake-resistant decompression packaging materials, which not only finds a way out for China’s metamorphic grain, but also successfully explores the replacement of packaging materials. the road. In addition, they can also process wastes such as bagasse, wheat straw, and waste newspapers into a variety of shock-proof decompression packaging materials such as gold, orange, and light gray. Tests have shown that the performance of this material is not inferior to that of foamed plastic materials. At present, only further research is needed on weight reduction.
At present, the application of "biodegradable resin" to replace existing plastic packaging is in full swing. Corn is a delicious and nutritious food, it is also widely used in the manufacture of sweeteners and animal feed. As technology advances, scientists have found that using corn can create a variety of plastic products. For example, corn starch resin, which has been successfully researched in Japan and Taiwan in recent years, is a new type of green environmental protection material. This kind of resin is made of corn as raw material, processed and plasticized, and it can be used to make a variety of disposable articles, such as cups, plastic bags, and commodity packaging. According to experiments, this packaging material can be disposed of through burning, biochemical decomposition, and insect feeding, thus eliminating the "white pollution" hazard.
Today, many large companies abroad are optimistic about this new environmentally friendly material. For example, Coca Cola used 500,000 disposable cups at the Winter Olympics in Salt Lake City, all of which were made of corn and plastic; the cups disappeared in open air in just 40 days. The famous Japanese electrical manufacturer, Sony Corporation, has been packing MD disks with plastic paper made from corn for two years. The new packaging is as beautiful as the previous packaging, but it will not produce the "durable" adverse effects.
So, how did corn become a plastic product? Visit the corn plastics factory of Cargill Road Co., Nebraska, USA and you will see the whole process of turning corn into plastic. First of all, the sugar in the corn is extracted, and carbon, which is the base material for making plastics and fibers, is extracted through fermentation and distillation, and then processed into a fine particle with a diameter of 4.57 mm called polylactide (PLA). Finally, these small particles are pressed into bags, foam or tableware.
According to Cargill Dow, corn, one of the major agricultural products in the United States, has ample supply, and it will not be a problem to extract 1 billion pounds (454 million tons) of polylactide each year over the next decade. This means that one-tenth of the U.S. corn production will be made into plastics and fibers.
According to recent information released by Taiwan in China, at present, the number of plastic bags produced in Taiwan per ton of corn resin is almost the same as that produced by plastic pellets. According to statistics from the Taiwanese plastics industry, about 100 million tons of plastic products are produced each year in the world, and 30 million tons of disposable packaging materials are used each year. Solving the pollution caused by these materials will cost a lot of social costs. If corn resin can successfully replace some of the packaging plastics, it is estimated that there will be a market worth US$10 billion annually.
Perhaps seeing the bright future of this new material, DuPont, the giant in chemical production, has also joined the ranks of developing corn plastics. The company’s research also received US$19 million in financial support from the US Department of Energy.
Although corn plastic is very environmentally friendly, it also has a significant drawback - expensive. For example, the price of corn plastic plates produced by North American bio-company is about 5% higher than that of traditional plastic plates, and the price of cups is even higher by 25%. However, the company's president, Frederick Hill, believes that within five years, as the demand for corn plastics increases, the scale of production will expand and costs will drop.
Food science experts from the U.S. Department of Agriculture have also recently announced that a new environment-friendly food packaging material is expected to come out. This new type of environmentally friendly packaging material is completely made of crushed strawberries, so it is very environmentally friendly and may replace traditional polyethylene plastic film and become a new material for food packaging. According to Tara McHugh, a food expert of the U.S. Department of Agriculture, this newly developed food packaging material is no different from traditional products in terms of performance. Food packaging films made with it can also stop oxygen. Infiltration, so as to achieve the effect of food preservation. Since the composition of this new material is mainly derived from vegetables and fruits that are not suitable for consumption, it is a naturally decomposable and environmentally friendly material. In testing, packaging films made from this “magic†material not only served to preserve freshness, but also improved the taste of fruits such as bananas and apples. McHugh said that in the near future, not only can strawberries be used as packaging materials, but also vegetables and fruits such as carrots and broccoli can be used as packaging materials. There is no doubt that the successful application of this new packaging material and other similar materials will revolutionize the food packaging industry.
Kargil Dow Polymers, a joint venture between Japan's Cargill and Dow Chemical, has also succeeded in making packaging materials from natural plants such as corn or wheat. This packaging material is named "Polylactide Natural Product" and can be used to make paper cups, candy wrappers, etc. It has good hand feeling, high elasticity and resistance to fouling.
According to reports, Kargil Polymers first extracted unrefined natural sugar dextrose from natural crops such as corn or wheat, followed by fermentation of dextrose to lactic acid, and then cold-formed lactic acid. For the lactide material, the lactide is finally melted to form a long molecular chain of a polymer called polylactide. The use of polylactide polymers with such long molecular chains can not only produce packaging materials, but also have low cost, can be decomposed spontaneously under hot and humid conditions, and will not cause environmental pollution.
In China, the development of new packaging materials has also achieved certain results. For example, Hubei Wuhan Futuo Environmental Packaging Materials Co., Ltd. and Wuhan Jinfeng Environmental Plastics Co., Ltd. have mastered the technology of processing deteriorating grain into earthquake-resistant decompression packaging materials, which not only finds a way out for China’s metamorphic grain, but also successfully explores the replacement of packaging materials. the road. In addition, they can also process wastes such as bagasse, wheat straw, and waste newspapers into a variety of shock-proof decompression packaging materials such as gold, orange, and light gray. Tests have shown that the performance of this material is not inferior to that of foamed plastic materials. At present, only further research is needed on weight reduction.
Types of Outdoor Sports Backpacks,Mainly include mountaineering bags, travel bags, bicycle special bags, backpack bags, etc.
mountaineering backpack has two categories: one is a large backpack with a volume between 50-80 liters; the other is a small backpack with a volume between 20-35 liters.Large mountaineering bags are mainly used to transport mountaineering materials in mountaineering, while small mountaineering bags are generally used for high-altitude climbing or assault peaks.The backpack for mountaineering is designed to cope with extreme environments. It is exquisite and unique. Generally, the body is slender and long. The back of the bag is designed according to the natural curve of the human body, so that the body of the bag is close to the back of the person, so as to reduce the pressure on the shoulders by the straps.
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