Market concentration of degradable plastics in China needs to be improved
The degradable plastics industry chain is mainly divided into three parts: design and key raw materials, degradable plastics products and application of degradable plastics. Among them, PLA and PBAT are the main development directions of degradable materials in the future. The representative enterprises of China's degradable plastics industry chain are distributed in Shandong, Anhui, Guangdong, Jiangsu and other regions, but at present, the production scale of enterprises is generally small, and the market concentration needs to be improved.
1. Overview of degradable plastics industry chain: PLA and PBAT are the main development directions of degradable materials in the future
The upstream of degradable plastics industry chain is the production of raw materials. According to the source of raw materials, raw materials are roughly divided into bio based plastics and petroleum based plastics. Among them, the basic raw materials of bio based plastics (such as starch based plastics, PLA, PHA, etc.) are renewable natural biomass resources, such as starch (such as corn, potato, etc.), plant straw, chitin, etc., while petroleum based plastics (such as PBAT, PCL, PBS, PGA, etc.) are formed with petrochemical products as monomers;
The middle reaches of the degradable plastic industry chain are the production of degradable plastic products, including disposable tableware, disposable plastic bags, wrapping paper, clothing, agricultural film, 3D printing materials, pharmaceutical materials, etc;
The downstream of the industrial chain is the application of degradable plastics, involving fields such as packaging, electronics, automobile & transportation, consumer goods, textile, agriculture, coatings, 3D printing, modern medicine, Architecture & construction, etc.
In recent years, developed countries and regions such as Europe, the United States and Japan have formulated and promulgated relevant laws and regulations to restrict the use of non degradable plastics through local prohibition, restriction, compulsory collection and collection of pollution taxes, and vigorously develop new biodegradable materials to protect the environment and soil.
From 2019 to 2020, many countries in Asia have also issued plastic restriction policies, including China, Pakistan, India, Philippines, Thailand, Algeria and other countries. In the future, the demand for biodegradable plastics in Asia will grow rapidly.
PLA and PBAT are the main development direction of degradable materials in the future. PLA is one of the most common degradable plastics. The production process is pollution-free, and the product can be degraded into carbon dioxide and water, which will not affect the environment.
PLA also has reliable biological safety, biodegradability, good mechanical properties and easy processing, which is widely used in packaging, textile industry, agricultural plastic film and biomedical polymer industry.
PBAT is a kind of thermoplastic degradable plastics, which has good ductility, elongation at break, heat resistance and impact properties. PBAT is widely used in the field of disposable packaging film and agricultural film due to its good film-forming performance and easy film blowing. PBAT has lower cost of petroleum based materials, more mature technology and less investment intensity. PBAT is expected to become the largest degradable plastic category in the future based on its properties, application fields and production costs.
At present, the representative enterprises of PLA and PBAT in China include Jinfa technology, Jindan technology, COFCO technology, wangjinglong, Huaxin new material, Guanghua Weiye, Fengyuan Group, Haizheng biology, Tianren biology, tongjieliang biology, Hengli petrochemical, Tongcheng new material, Yifan medicine, Ruifeng high material, Wanhua chemical, Lanshan Tunhe, etc.
2. Regional thermal chart of China's degradable plastics industry chain: at present, the production scale of enterprises is generally small, and the market concentration needs to be improved
According to the regional distribution of representative enterprises of degradable plastics industry chain, representative enterprises of China's degradable plastics industry chain are distributed in Shandong, Anhui, Guangdong, Jiangsu and other regions, but the production scale of enterprises is generally small, and the market concentration needs to be improved.
Biodegradable plastics industry is a new industry, because the technology construction capital investment at least reaches a certain scale before the profit is generated, small and medium-sized enterprises have limited capital strength, unable to achieve scale cost-effectiveness and market promotion, the product cost is too high, so it is difficult to promote the application in China. At present, the production scale of domestic enterprises is generally small, and the market concentration needs to be improved.
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