Demand for major national projects
The construction of major national projects also has great demand for green plastics. For example, the â€œWestern Developmentâ€ project takes ecological construction as a key point. The desertification in the western part of China is serious, the desertification area exceeds 1 450,000 km 2 , and it also extends at a speed of 1 640 km 2 /a. Therefore, the use of new types of high-absorbent resin, polymer emulsions, and other sand-fixing vegetation materials are effective countermeasures for desertification. Another example is that Chinaâ€™s upcoming hosting of the 2008 Olympics in Beijing will involve the construction of a large number of venues. In order to protect the environment, a â€œscience, technology, environmental protection, and humanitiesâ€ event will be held, which will inevitably lead to the use of green plastic, disposable packaging, Daily necessities need green plastic to reflect the concept of the Green Olympics.
Domestic and foreign trends
The recycling of materials and the recycling of waste materials are an important aspect of the development of environmental materials and technologies in countries around the world. They not only control environmental pollution but also conserve resources. The biodegradable bio-based plastics not only partially solves the energy problem, but also partially solves the pollution problems caused by general plastic wastes and the greenhouse effect caused by excessive accumulation of carbon dioxide. Therefore, the government and various departments attach great importance to it.
The U.S. federal government decided that the U.S. Environmental Protection Agency should take the lead in developing a "multi-sectoral joint action plan" aimed at all relevant government departments (such as the Ministry of Commerce, the Ministry of Energy, the Natural Science Foundation, the Ministry of Agriculture, and the National Aeronautics and Space Administration). The establishment of linkages emphasizes the development of green technologies as an integral part of the governmentâ€™s overall technical plan. In the development of new technologies funded by various agencies of the federal government, the application of research inventions in environmental protection is taken into consideration. The US Department of Agriculture's Office of Energy Policy and New Applications established guidelines for federal procurement of biobased products (Federal) in 2003, and section 902 of the Agricultural Safety and Rural Investment Act. The goal is to establish a guideline that gives biobased products a priority in federal procurement. Article 902 states that federal procurement is the preferred biobased product. For items over US$1,000, or the total purchased in the previous financial year equal to or more than US$1,000, the agent must purchase bio-based products and implement them in accordance with the regulations. However, compliance with the Federal Agent Procurement for Type 6002 (42 U.S.C.6962) of the Solid Waste Treatment Act does not obey 9002, and the demand for the two is inconsistent. Under normal circumstances, unless the product can not be used, or does not meet the standards of use, or the price is outrageous, the federal procurement agent must purchase bio-based products.
Japan has comprehensively formulated a plan for the development of industrial science and technology in a recycling-oriented society, including plans for the development of science and technology in various related fields and supporting operating systems and regulations. Japan has achieved world-recognized achievements in recent years in the development of science and technology development organizations and systems at the national level. Following the "Kyoto Protocol," Japan has not only actively promoted the development of the global environmental cause in the world, but also gradually established a complete recycling-oriented society's material production system at all levels in the country, as well as the construction of corresponding regulations and operating mechanisms. It proposes a national economic development strategy that changes from "technology-based nation" to "environment-based country". The Ministry of Agriculture, Forestry and Fisheries has developed a strategy for Japan's Biomass Nippon, which includes the development of biodegradable plastics and bio-based polymers derived from renewable resources. The central issue is to make full use of biomass resources, that is, to make full use of renewable organic resources other than petrochemical resources that are inherently renewable. Biomass resources are organic substances generated by photosynthesis using solar energy, water, and carbon dioxide. In the life cycle, as long as there is life and solar energy, biomass resources are a sustainable and renewable energy source. The CO2 released from the combustion of biomass resources is CO2 absorbed from the air through photosynthesis during the growth of the organism. Biomass resources have a characteristic called "neutral carbon" and do not increase CO2 in the air. C02 is considered as one of the gases that cause the global warming greenhouse effect. The use of biomass resources can replace fossil resources to produce energy and products, which can reduce CO2 emissions. Therefore, the strategy is to use biomass resources as a substitute for petrochemical resources in the future and as energy and products are widely used in daily life.
China has made sustainable development a national strategic goal for development. The government attaches great importance to and supports research and development and application of eco-environmental materials, namely green materials. The Chinese people passed the "Renewable Energy Law (Draft)" and "Solid Waste Law (Revised)" in 2004, and proposed suggestions on the utilization of renewable biomass energy and the promotion and application of degradable plastics. The Ministry of Science and Technology supported degradable plastics, especially biodegradable plastics, in the "Nine Five Five", "Tenth Five-year" and "863" projects. Under the strong support of the national "863" Plan, the National Natural Science Foundation, and the National High-tech Industrialization Demonstration Project, China has made important achievements in the research and development of environmental coordination of various types of ecological environmental materials and materials. progress. For example, in the â€œ10th Five-Year Planâ€ and â€œ863â€ Plan, special topics on ecological environment materials were established. The topics centered on the "Western Development" development strategy and the "Science, Humanities, and Green" Olympics project, focusing on breakthroughs in sand-fixing vegetation materials and applied technologies. Develop environmentally friendly, fully degradable plastic membrane materials adapted to China's high-efficiency agricultural technologies. At present, our "Eleventh Five-Year" report also makes recommendations on bio-based and bio-degradable plastics as important items. The National Development and Reform Commission and other countries are also preparing to invest tens of billions of dollars in the use of renewable energy during the â€œEleventh Five-Year Planâ€ to develop industries and partially solve the energy crisis.
(to be continued)
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