At present, some progress has been made in the application of "biodegradable resins" to replace existing packaging plastics. As technology advances, scientists have found that using corn can produce a variety of plastic products. Such as "corn starch resin" is a new type of green environmental protection material. The resin is made from 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 so on. According to experiments, this packaging material can be disposed of through burning, biochemical decomposition, and insect feeding, thus eliminating the "white pollution" hazard.
The whole process of producing plastic products from corn is: First of all, the sugar in the corn is extracted, and the carbon, which is the basic material for making plastics and fibers, is extracted through fermentation and distillation, and then processed into a kind of polylactide (PLA). Diameter of only 4.57 mm in diameter. Finally, these small particles are pressed into bags and packaged in plastic or tableware.
Corn, one of the major agricultural products in the United States, has ample supply. It will not be a problem to extract 1 billion pounds (454 million tons) of polylactide annually in the next decade. This means that one-tenth of the U.S. corn production will be made into plastics and fibers. According to information recently disclosed by Taiwan Province of China, the number of plastic bags produced per ton of corn resin in Taiwan is now almost the same as that produced with 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 high cost disadvantage. For example, the price of a corn plate produced by a North American biological company is about 5% higher than that of a traditional plastic plate, and the price of the cup 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 US Department of Agriculture recently announced that a new environmentally 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. This newly developed food packaging material is no different from the traditional product in terms of performance. The food packaging film made of it can also prevent the infiltration of oxygen, so as to achieve the effect of food preservation. Since the ingredients of this new material are mainly derived from vegetables and fruits that are not suitable for consumption, it is a material that can be naturally decomposed and meets the requirements of environmental protection. In the test, the packaging film made of this material can not only play a role in keeping fresh, but also can improve the taste of fruits such as bananas and apples.
Japan's Cargill Road Polymers 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. This material is extracted from natural crops such as corn or wheat crops to extract non-refined natural sugar dextrose, followed by fermentation of dextrose into lactic acid, and then lactate cold shrinkage into lactide material, Finally lactide is 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.
According to the New Scientist magazine, biochemists at the Hawaiian Institute of Natural Energy have made food waste a biodegradable polymer. This type of plastic, which can be degraded in a short time, is widely used not only for making packages such as bottles and bags but also for making capsules for medicines.
"New Scientist" quoted biochemist of the Institute of Natural Energy as saying that the raw material of the new biodegradable plastic is a mixture of water and various food wastes, and can produce 22-25 kg of biodegradable plastic per 100 kg of mixture, which not only greatly reduces production. The cost has also found a good “home†for a large number of food waste that “has nowhere to hideâ€. At present, many waste disposal companies hope to use this technology instead of landfill technology to dispose of food waste in schools and company restaurants.
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, not only finding a way out for China’s metamorphic grains, but also successfully exploring plastic packaging materials. Alternative path. In addition, they are also able to process wastes such as bagasse, wheat straw, and waste newspapers into a variety of shock-proof, vacuum-reducing 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.
The whole process of producing plastic products from corn is: First of all, the sugar in the corn is extracted, and the carbon, which is the basic material for making plastics and fibers, is extracted through fermentation and distillation, and then processed into a kind of polylactide (PLA). Diameter of only 4.57 mm in diameter. Finally, these small particles are pressed into bags and packaged in plastic or tableware.
Corn, one of the major agricultural products in the United States, has ample supply. It will not be a problem to extract 1 billion pounds (454 million tons) of polylactide annually in the next decade. This means that one-tenth of the U.S. corn production will be made into plastics and fibers. According to information recently disclosed by Taiwan Province of China, the number of plastic bags produced per ton of corn resin in Taiwan is now almost the same as that produced with 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 high cost disadvantage. For example, the price of a corn plate produced by a North American biological company is about 5% higher than that of a traditional plastic plate, and the price of the cup 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 US Department of Agriculture recently announced that a new environmentally 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. This newly developed food packaging material is no different from the traditional product in terms of performance. The food packaging film made of it can also prevent the infiltration of oxygen, so as to achieve the effect of food preservation. Since the ingredients of this new material are mainly derived from vegetables and fruits that are not suitable for consumption, it is a material that can be naturally decomposed and meets the requirements of environmental protection. In the test, the packaging film made of this material can not only play a role in keeping fresh, but also can improve the taste of fruits such as bananas and apples.
Japan's Cargill Road Polymers 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. This material is extracted from natural crops such as corn or wheat crops to extract non-refined natural sugar dextrose, followed by fermentation of dextrose into lactic acid, and then lactate cold shrinkage into lactide material, Finally lactide is 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.
According to the New Scientist magazine, biochemists at the Hawaiian Institute of Natural Energy have made food waste a biodegradable polymer. This type of plastic, which can be degraded in a short time, is widely used not only for making packages such as bottles and bags but also for making capsules for medicines.
"New Scientist" quoted biochemist of the Institute of Natural Energy as saying that the raw material of the new biodegradable plastic is a mixture of water and various food wastes, and can produce 22-25 kg of biodegradable plastic per 100 kg of mixture, which not only greatly reduces production. The cost has also found a good “home†for a large number of food waste that “has nowhere to hideâ€. At present, many waste disposal companies hope to use this technology instead of landfill technology to dispose of food waste in schools and company restaurants.
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, not only finding a way out for China’s metamorphic grains, but also successfully exploring plastic packaging materials. Alternative path. In addition, they are also able to process wastes such as bagasse, wheat straw, and waste newspapers into a variety of shock-proof, vacuum-reducing 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.
The raw material of our compostable tableware is extracted from corn and other raw materials, and 100% of the renewable resources of PLA (Polyactic Acid polylactic acid) is extracted by science and technology. Without any plasticizing additives, it is pressed into environmentally safe tableware which is neither toxic nor degradable. It is long-term, high gloss and excellent heat resistance (-20℃ to 120℃). This product is naturally degradable to water and carbon dioxide under photosynthesis and degradable environmental conditions. Our green and environmentally-friendly tableware is completely different from traditional plastic products. The traditional plastic products are petroleum-based raw materials. Once heated, they will produce toxicity. Besides the non-renewable resources, they cannot be naturally degraded.
Compostable Tableware,biodegradable disposable plates,sustainable disposable plates
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