Industrialized low-cost fully biodegradable plastics

Degradable plastics are key materials for research and development in various countries and environmental protection projects. At present, despite the fact that a few countries can produce fully degradable plastics, they are difficult to enter into industrialization and practical applications because they are sold at 5 to 8 times the price of ordinary plastics. The uniqueness of the “HuaDan” brand of completely biodegradable plastics products of Zhaoqing Huafang Degradable Plastics Co., Ltd. is to realize low-cost and large-scale industrial production.

"Completely biodegradable plastics" is not a "degradable plastic" with a degradation rate of only 10 to 40%, nor "plastic masterbatch," but a new type that can set degradation time, 100% degradation, and can replace most of the existing plastics. The main raw materials used in the products are renewable component starch and composite additives, which can completely replace non-renewable petroleum-based raw materials and solve the problems of agricultural products outlets, new materials and environmental protection.

The technology was developed by Zhaoqing Huafang Biodegradable Plastics Co., Ltd. It has applied for four national invention patents and has completely independent intellectual property rights. Last year it successfully developed fully biodegradable pellets and blown film formed film products. . At present, the project has completed the initial test, the pilot test, and entered the industrial production stage. The company became the first company in China to develop and produce fully biodegradable plastic films at low cost.

Huafang adopts a unique technical route and uses biodegradable components: 60% oxidized starch, 20% polyvinyl alcohol (PVA), 15% glycerol, and 5% complex additives. The raw materials are fully based on domestic renewable resources. The complete biodegradable plastics made from these raw materials will not cause environmental pollution during the production process or after they are discarded. The products will be finally disposed of in the garbage (ie, bio-mold) environment within six months after being discarded. For carbon dioxide and water, return to nature.

This series of products is pelletized by a single-screw electromagnetic dynamic extruder. At present, according to the pellet formulations of various models, it is possible to use blown film or cast methods to produce garbage bags, packaging bags, storage bags, industrial packaging and agricultural films. , plastic film series; is expected to be able to produce glass cups and lunch boxes in the form of sheets and plastics during the year, and can produce life and utensil plastic series by injection molding, and can produce containers series by hollow blow molding, which can be soft and hard foamed. Produce cushioning packaging materials. In the production of end-products, it can basically be produced with common equipment for general plastics. The technology is simple, raw materials are easily available, and the production process is pollution-free. It is in line with the requirements of green environmental protection, resource substitution, circular economy and the establishment of a conservation-oriented society.

The plastic products produced by this technology are safe and non-toxic. In the course of use, the strength and function are the same as those of ordinary plastics. The cost and selling price are close to that of ordinary plastics, and some of the products can even compete with the prices of waste remanufactured plastics and have a strong price competitive advantage. .

The project has been included in the 2005 National Torch Plan (2005EB031283). The product has passed the provincial and ministerial level scientific and technological achievements appraisal, and the appraisal opinion is "Technology reaches domestic and international leading level." The test report issued by the National Center for Plastic Products Quality Supervision and Inspection, Polymer Engineering Equipment National Engineering Research Center, South China University of Technology Polymer Processing Engineering Ministry of Education Key Experimental Analysis Center, the main technical indicators are: QB/T2461-1999 national standards The 28-day biodegradation rate was 66.6%, the IDD ISO 148555:1999 stage 62-day biodegradation rate was 53.8%, the longitudinal and transverse strength of the film was >30 Mpa, the elongation at break was >600%, and the angular tear strength was 54.8 KN/m to 84.7. KN/m.

In order to promote the application of this technology for the benefit of mankind, the company can supply pellets to cooperate with the end product factory, or it can cooperate with investors in the area, consult or cooperate and fax it to 86-758-2848118 to contact the company.

Source: China Magazine