Guangdong successfully developed biodegradable plastic pellets

Biodegradable plastic pellets with a degradation rate of up to 100% have been successfully developed by Zhaoqing Huafang Degradable Plastics Co., Ltd., Guangdong. The company has blown plastic films successfully with this pellet. Completely biodegradable plastic pellets and films have passed the scientific and technological achievements appraisal organized by the Guangdong Science and Technology Department in May this year.

Degradable plastics are the key materials for research and development in various countries. Countries have done a lot of basic research work on photodegradation and biodegradation as the technical route. At present, only the United States, the United Kingdom, Italy, and Japan can produce fully degradable plastics. However, the product price is 6-8 times that of ordinary plastic products, and it cannot enter industrialization and practical applications.

Zhaoqing Huafang Degradable Plastics Co., Ltd. said that the company has made its own research, provided another technical route, and took the path of biodegradation, which has made significant technological breakthroughs in the development of biodegradable plastics. Their biodegradable plastics are different from biodegradable plastics with a degradation rate of only 10% to 30%. They are not plastic masterbatches. They can set the degradation time and are 100% degradable. They have market competitiveness and can completely replace plastics. product. The main raw materials used are renewable resources, namely starch, polyvinyl alcohol (PVA), and glycerol complex additives.

According to Huafang company, the company's series of biodegradable plastics is manufactured by the National Center for Quality Supervision and Inspection of Plastic Products, the National Engineering Research Center for Polymer Forming Equipment, and the Key Laboratory Analysis Center of Polymer Processing Engineering of the South China University of Technology. The report shows that it has reached the leading level at home and abroad. The main technical indicators are: 28 days biodegradation rate ≥ 66.6% (national standard ≥ 10%, international standards ≥ 15%), film longitudinal and transverse strength> 30MPa, elongation at break> 600%, angle tear strength 54.8KN/m-84.7KN/m, more than double the same indicator of the best Mater-Bi product in the world. The production cost of pellets is only about 9,500 yuan/ton, which is 90% of the current PE pellets.

Huafang Company said that the full biodegradable plastic has completed the product pilot test, and applied the international patented electromagnetic dynamics (30% -50% energy saving than general equipment) granulation equipment and general-purpose blown film equipment to complete the sub-industrial production. Debugging.

According to experts, the main raw materials used by the fully biodegradable plastics developed by Huafang Company are based entirely on domestic renewable resources, namely, starch obtained from corn, potatoes, and cassava, accounting for 60%; polyethylene obtained from limestone and coke Alcohol (PVA), 20%; Glycerol obtained from plants and animals, 15%; and Technical core plasticizers, reinforcing agents, wet strength agents, accounting for 5% blending composition; experts say that made with these raw materials The complete biodegradable plastic will not cause environmental pollution after the production process and after being discarded, and the product will eventually become a variety of biota, carbon dioxide and water, and return to nature.

It is understood that Huafang Company is exploring and carrying out project investment cooperation with provinces and municipalities under the premise of promoting the supply of upstream industries. They said that the general scale can invest 50 million baht and build an annual capacity of 50,000 tons of pellets. At present, this pellet market has a competitive price of 13,000 yuan/ton. For the production of various packaging film, agricultural film, disposable tableware, agricultural and sideline products packaging equipment, a variety of agricultural disposable containers.

Source: Packaging News