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Beijing, April 18 (Reporter Du Yanfei) "Compared with other degradable materials such as polylactic acid (PLA), polyglycolic acid (PGA) has the characteristics of full natural degradation, high barrier properties, high strength, and high heat resistance.
There are broad application fields and development prospects in our country
.
" Recently, at the first coal-based new material product promotion conference held by the National Energy Group, Yan Guochun, Party Secretary and Chairman of the National Energy Group China Shenhua Coal-to-Liquid Chemical Co.
, Ltd.
, said that the supermarket Degradable plastic bags, disposable lunch boxes, milk Tetra Pak, milk tea straws, etc.
can all be made of PGA, which is of practical significance for further solving "white pollution" and "marine plastic pollution"
.
In recent years, in order to curb "white pollution" and promote sustainable development, various departments and localities of the State Council have successively issued or upgraded "plastic restriction orders and ban orders", which has promoted the development of China's biodegradable materials industry and has further expanded The market demand of PGA
.
"Compared with other biodegradable materials, PGA can be degraded in the natural environment under the action of water or microorganisms.
It is a truly environmentally friendly material
.
" Yan Guochun said that PGA can not only meet the needs of industrial compost degradation, but also It can achieve household compost degradation, soil burying degradation, and rapid degradation even in the marine environment with harsh degradation conditions, and eventually degrade into carbon dioxide and water, which can minimize the impact on the environment
.
In addition, Yan Guochun introduced that PGA also has strong high barrier properties, can isolate oxygen, water vapor, carbon dioxide and organic vapor, and can be used in food, beverage, medicine and other packaging
.
At the same time, PGA also has the characteristics of high strength, high heat resistance, etc.
, which can be used to make high-performance non-metallic tools
.
For example, it replaces magnesium aluminum alloy in the field of shale gas hydraulic fracturing
.
"PGA can be used alone as a basic raw material to be processed into unique products, or it can be blended and modified with other traditional polymer materials to obtain more materials with different characteristics to meet different application needs
.
" Yan Guochun Say
.
Huang Weijie, deputy general manager of Inner Mongolia Pujing Polymer Material Technology Co.
, Ltd.
, said that despite the excellent performance of PGA materials, it can effectively solve the shortcomings and deficiencies of traditional biodegradable plastics such as PLA
.
However, due to the limitation of traditional PGA production technology, the current low production capacity and high cost of PGA have greatly restricted the promotion and application of PGA
.
Talking about the energy consumption, process and production cost of PGA, Yan Guochun told reporters that the raw coal consumption per ton of PGA product is only one-half of coal-to-olefins, and the process carbon dioxide emissions are about one-third of that of coal-to-olefins.
The production cost It is also significantly lower than PLA
.
Even at low oil prices, compared with oil and natural gas biodegradable materials, the cost of PGA still has a certain competitive advantage
.
Moreover, with the commissioning of the 50,000-ton/year polyglycolic acid (PGA) demonstration project of National Energy Group Yulin and the optimization of the later PGA process, the energy consumption and cost of PGA will still be further reduced in the future
.
Industry insiders said that in the future, in accordance with the integration and intensive layout of "coal-chemical industry-new materials-new energy", the coupling of new energy and new chemical materials will be realized through "green hydrogen, green oxygen, green electricity, hydrogen storage, and energy storage" , Can promote the conversion of coal from fuel to raw material, promote the green low-carbon transformation and high-quality development of the modern coal chemical industry, and help achieve carbon peak and carbon neutrality
.
There are broad application fields and development prospects in our country
.
" Recently, at the first coal-based new material product promotion conference held by the National Energy Group, Yan Guochun, Party Secretary and Chairman of the National Energy Group China Shenhua Coal-to-Liquid Chemical Co.
, Ltd.
, said that the supermarket Degradable plastic bags, disposable lunch boxes, milk Tetra Pak, milk tea straws, etc.
can all be made of PGA, which is of practical significance for further solving "white pollution" and "marine plastic pollution"
.
In recent years, in order to curb "white pollution" and promote sustainable development, various departments and localities of the State Council have successively issued or upgraded "plastic restriction orders and ban orders", which has promoted the development of China's biodegradable materials industry and has further expanded The market demand of PGA
.
"Compared with other biodegradable materials, PGA can be degraded in the natural environment under the action of water or microorganisms.
It is a truly environmentally friendly material
.
" Yan Guochun said that PGA can not only meet the needs of industrial compost degradation, but also It can achieve household compost degradation, soil burying degradation, and rapid degradation even in the marine environment with harsh degradation conditions, and eventually degrade into carbon dioxide and water, which can minimize the impact on the environment
.
In addition, Yan Guochun introduced that PGA also has strong high barrier properties, can isolate oxygen, water vapor, carbon dioxide and organic vapor, and can be used in food, beverage, medicine and other packaging
.
At the same time, PGA also has the characteristics of high strength, high heat resistance, etc.
, which can be used to make high-performance non-metallic tools
.
For example, it replaces magnesium aluminum alloy in the field of shale gas hydraulic fracturing
.
"PGA can be used alone as a basic raw material to be processed into unique products, or it can be blended and modified with other traditional polymer materials to obtain more materials with different characteristics to meet different application needs
.
" Yan Guochun Say
.
Huang Weijie, deputy general manager of Inner Mongolia Pujing Polymer Material Technology Co.
, Ltd.
, said that despite the excellent performance of PGA materials, it can effectively solve the shortcomings and deficiencies of traditional biodegradable plastics such as PLA
.
However, due to the limitation of traditional PGA production technology, the current low production capacity and high cost of PGA have greatly restricted the promotion and application of PGA
.
Talking about the energy consumption, process and production cost of PGA, Yan Guochun told reporters that the raw coal consumption per ton of PGA product is only one-half of coal-to-olefins, and the process carbon dioxide emissions are about one-third of that of coal-to-olefins.
The production cost It is also significantly lower than PLA
.
Even at low oil prices, compared with oil and natural gas biodegradable materials, the cost of PGA still has a certain competitive advantage
.
Moreover, with the commissioning of the 50,000-ton/year polyglycolic acid (PGA) demonstration project of National Energy Group Yulin and the optimization of the later PGA process, the energy consumption and cost of PGA will still be further reduced in the future
.
Industry insiders said that in the future, in accordance with the integration and intensive layout of "coal-chemical industry-new materials-new energy", the coupling of new energy and new chemical materials will be realized through "green hydrogen, green oxygen, green electricity, hydrogen storage, and energy storage" , Can promote the conversion of coal from fuel to raw material, promote the green low-carbon transformation and high-quality development of the modern coal chemical industry, and help achieve carbon peak and carbon neutrality
.
