Biodegradable plastic is an important content in the development of circular economy industry
Biodegradable plastic is an important content in the development of circular economy industry
Production of new materials is bound to be the development direction of plastic enterprises. According to the people in the industry, the development trend of plastic industry is one of the important contents of China's development of circular economy.
Kept increasing by environmental protection efforts, the country's emphasis on environmental regeneration industry level gradually increased, the plastic as the main source of "white pollution", its renewable environmental concern, many environmentalists. At present, as the environmental protection plastic products of biodegradable plastics, high-tech functional new materials and the recycling of waste plastic, etc., is becoming a research hotspot of global attention, including biodegradable plastics is especially rapid development, also make the plastic manufacturers realize the biodegradable plastics market with a huge business opportunities.
China is one of the most important suppliers of biodegradable plastics in the world, accounting for about 20 percent of global production capacity. In recent years, China's biodegradable plastic capacity has grown at an average annual rate of more than 21%, and the capacity will continue to rise as companies embark on new or expanded biodegradable plastic projects.
The main target market for biodegradable plastics is plastic wrap film, agricultural film, disposable plastic bags and disposable plastic tableware, according to people in the industry. Compared with traditional plastic packaging materials, the cost of new degradable materials is slightly higher. But as the environmental protection consciousness enhancement, the people are willing to protect the environment and a new type of biodegradable materials using a slightly higher price, the growth of awareness of environmental protection to new biodegradable materials industry has brought enormous opportunities for development.
In the food packaging material, there have been some special novel plastics in recent years.
Wood powder plastic: a kind of wood powder plastic packaging material developed from pine wood, which can be used to produce polyols from wood powder and then react with isocyanate to produce polyurethane. This kind of wood powder plastic is extremely resistant to heat, and can be biodegradable, which can be used to make temperature resistant packing bags.
Corn plastic: an easy to decompose corn plastic packaging material. It is made from corn starch mixed with polyethylene, which is suitable for the packaging of food packaging. The packaging can quickly dissolve in water and avoid exposure to pollution sources and bacterial toxins.
Rape plastic: a plastic packaging material for rape. It is extracted from producing biopolymers bacteria three genes can produce plastic, moved to the rape plant, after a period of time to produce a plastic polymer fluid, the refined processing a rape plastic can be got. This kind of plastic processing packaging material or food fast food packaging material, can decompose on its own, no pollution residue.
Wheat plastic: this is made of wheat flour mixed with glycerol, glycol, polysilicon oil, etc., and then added 150kz/Id pressure to become translucent plastic film. The advantage of packaging food in wheat is that it can be broken down by microbes.
Soybean plastic: a protein made from soybeans can be used to make plastic food packaging materials that can be used instead of plastics made from petroleum. This technology is to soybean isolate protein after soaking, grinding, drying, the protein solution, the water is taken out of and use this kind of protein powder mixed with other ingredients and additives, made from edible film or coating, used in food packaging. They have good strength, elasticity and moisture resistance.
Chlorophyll plastic: plastic film that is "dyed" by chlorophyll. Most green fruits and vegetables contain a large amount of chlorophyll, which reacts with the light to break down the energy in the food, leading to food spoilage. Plastic film with chlorophyll to "dyeing" in a particular way, through the processing of thin film, used for packing food is more effective, can be "captured" food rotting light, thus greatly extend the food freshness.
Bacterial plastic: a PHB bacterial plastic. It USES sugar to produce a bacterium that is processed into materials similar to polypropylene. The material is non-toxic, and it is easy to biodegrade. It is an ideal material for making food packaging bags.
Detection bacteria film: this is a special film can detect bacteria, namely in the ordinary food packaging film surface coated with a layer of special coating, make its have the special function of can detect bacteria, such as used for raw cooked meat packaging film detection bacteria, if the packaging of meat is not fresh, harmful bacteria content beyond the food hygiene standards, the original transparent colorless packaging film will become a warning color, remind consumer meat is inedible.
The degradation of plastics due to some performance is still lacking, and it is not possible to replace the application of ordinary plastics in some fields. For degradable plastics market space, zhongyu information that degradable plastics used in garbage bags, plastic film, shopping bags and so on the size of the good prospect, and according to conservative estimates, China will have 3 million tons of demand in the future. As a result, the Chinese market alone has tens of billions of space.
China is the world of plastics production and consumption power, in the next few years, as the "white pollution" problem increasingly prominent, agricultural land security and food security will be placed in a more prominent position, completely biodegradable plastic agricultural film market demand and consumption growth also there will be a breakthrough, the research and development, production and application of biodegradable plastics is of great significance to the sustainable development of the plastics industry.
