Plastic pollution is becoming more and more serious, and the prospect of biodegradable plastics Vast
Invention of plastic Since then, it has been widely used and brought great convenience to people’s daily life. However, plastics are not easy to degrade, and the “white pollution” caused by waste plastics is becoming more and more serious, which is harmful to life and the natural environment. At present, the methods of dealing with plastic products in my country mainly include landfill, incineration and recycling, but these methods have their own drawbacks. The landfill method will not only occupy a large amount of land resources, but also affect the soil and groundwater environment; the incineration method will produce toxic substances and cause serious harm to the atmospheric environment; the recycling method cannot fully cover all plastic products, such as agricultural mulch, shopping bags, disposable Disposable tableware, etc. do not have recycling value.
biodegradable plastic It refers to the polymer material that is degraded through the biological metabolic process under the action of microorganisms (bacteria, fungi, etc.) in nature, and the final products are carbon dioxide, water and other small molecular substances that are not harmful to the environment. Biodegradable plastics have similar properties to ordinary plastics, but can be completely decomposed by composting and landfilling. Therefore, the popularization and application of biodegradable plastics will become an important way to solve the problem of plastic pollution.PBATIt is one of the best biodegradable materials in the market. PBATIt is a thermoplastic biodegradable plastic, which is a copolymer of butylene adipate and butylene terephthalate. PBAandPBT has better features Excellent ductility and elongation at break, good heat resistance and impact properties, and excellent biodegradability.
Table 1 PBATComparison with other major biodegradable materials
|
Project |
Starch based plastics |
PLA |
PHA |
PBS/PBSA |
PBAT |
|
heat resistance |
lower |
higher |
high |
high |
high |
|
Film-forming performance |
better |
poor |
better |
better |
better |
|
hardness |
lower |
high |
low |
lower |
low |
|
mechanical strength |
moderate |
higher |
high |
high |
high |
|
hydrolysis resistance |
moderate |
low |
high |
high |
high |
|
Transparency |
low |
high |
low |
low |
low |
|
Price |
low |
lower |
. Years laterAAThe price is also from2Month18Daily8,100元/Ton up to 11,400元/ton, increase40.74%.
Biodegradable Plastic Demand Side Analysis The domestic biodegradable plastic market has maintained a relatively high growth in recent years. Demand by 2013 年的2610,000 tons of growth To2019年的5210,000 tons, average annual Compound Growth Rate12.2%; market size by 2013 29.0100 million to 100 million2019 61.5100 million yuan, compound annual growth rate13.3%. 2019The annual output of plastic products in China is8,184.210,000 tons, the global proportion is25 %; while 2019The annual consumption of biodegradable plastics in China is only 5210,000 tons, the only share in the world4.6%. Due to its high cost and high technical barriers, my country’s biodegradable plastics are still in the promotion stage. In the future, with the continuous strengthening of people’s awareness of environmental protection, the improvement of biodegradable plastic technology, and the full implementation and implementation of the national plastic restriction and ban policy, the prospect of domestic biodegradable plastics is very broad. According to the forecast of Zhiyan Consulting,2020The domestic market size of biodegradable plastics is expected to be 70.6100 million yuan, year-on-year growth 14.8%;2026The domestic market size of biodegradable plastics is expected to reach serif”>122.0100 million yuan,2020-2026 Compound annual growth rate9.6%.
Figure1 2013-2019Annual demand and market size of biodegradable plastics in China Data source: Zhiyan Consulting
Figure2 2020-2026Forecast of China’s biodegradable plastics market in 2019 Data source: Zhiyan Consulting size:12pt”>. Biodegradable plastics in China are still in the promotion stage due to their high cost and high technical barriers. In the future, with the continuous strengthening of people’s awareness of environmental protection, biodegradable plastics With the improvement of technology and the full implementation and implementation of the national plastic restriction and ban policy, the prospect of domestic biodegradable plastics is very broad. According to the forecast of Zhiyan Consulting, 2020The annual domestic biodegradable plastic market size is expected to be70.6100 million yuan, a year-on-year increase14.8%;2026 span>The domestic market for biodegradable plastics is expected to reach 2.122.0100 million yuan,2020-2026Compound annual growth rate 9.6%.
Figure1 2013-2019Annual demand and market size of biodegradable plastics in China Data source: Zhiyan Consulting
Figure2 2020-2026Forecast of China’s biodegradable plastics market in 2019 Data source: Zhiyan Consulting 
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