Bioplastics will lead the plastics industry to flourish
2024-02-11 09:09:05
Today, plastics are widely used in various fields of society, bringing great convenience to people's lives. At the same time, because a large number of discarded plastic products are difficult to decompose, it constitutes a serious "white pollution", hindering the progress of society and sustainable economic development. With the increasing emphasis on environmental protection by human beings, the disposal of polymer materials waste A topic has received widespread attention around the world. Therefore, the preparation of environmentally friendly biodegradable plastics to replace traditional plastics, research and development of degradable plastics has become an effective method to control pollution, and degradable plastics have become a hot research direction at home and abroad.
At present, biodegradable plastics mainly include biodegradable plastics, photodegradable plastics, light and biodegradable plastics, and water-degradable plastics. Among them, biodegradable plastics are the most in-depth and widely used.
Biodegradable plastics are a class of plastics that are degraded by the action of microorganisms such as bacteria, molds (fungi) and algae found in nature. The ideal biodegradable plastic is a polymer material that has excellent performance, can be completely decomposed by microorganisms in the environment after being discarded, and is finally inorganicized into an integral part of the carbon cycle in nature.
In addition to natural degradation, biodegradable plastics have the advantages of renewable raw materials and strong adaptability to the body, making them widely used in environmental protection, food containers and packaging, agroforestry, medicine, textiles, electronics, and automobiles.
The application of biodegradable plastics in the high-end market mainly includes medical supplies, drug release materials, and materials for 3D printing. Biodegradable plastics such as PLA, PCL, and PHA have good biocompatibility, and can be controlled by molecular design during synthesis, so they have potential for development in the high-end market.
According to relevant reports, the market demand for biodegradable plastics will increase rapidly in the next few years. It is estimated that by 2020, the global demand for biodegradable plastics will reach 3.22 million tons, and the average annual demand growth rate will exceed 16%.
With the white pollution problem and the growing non-renewable energy crisis, the development and use of biodegradable plastics has become one of the effective ways to alleviate this problem. In today's increasingly scarce petroleum resources, how to effectively use existing resources, save limited resources and open up new alternative petroleum raw materials is an important issue to ensure the sustainable development of China's economy and the future development direction of the plastics industry.
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