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Low carbon life tips: recycling of recycled plastics, how to distinguish between PP and PE and other polyolefin plastics

更新时间:2023.05.31     作者:管理员      浏览次数:3
Polyolefin plastics are a common class of plastics, including polyethylene (PE), polypropylene (PP), polybutylene (PB), etc. Recycled polyolefin plastics are plastic products obtained by recycling and reprocessing polyolefin plastic waste. Distinguish recycled polypropylene (PP) and polyethylene (PE) and other polyolefin plastics by the following methods:

1. Marking and labeling: Recycled polypropylene and polyethylene are usually accompanied by appropriate markings and labels on the product or packaging that indicate their material type and recycled properties. These markings may include numbers, logos or text such as "Recycled PP" or "Recycled PE". Inspection of the markings and labels on the product can provide initial differentiation information.
2. Visual appearance: There are usually some visual differences between recycled polypropylene and polyethylene. Polypropylene usually has a more white or milky appearance, while polyethylene has a more transparent or translucent appearance. By observing the appearance characteristics, you can initially determine which plastic it may belong to.
3. Melting point test: Polypropylene and polyethylene have different melting points. By conducting a melting point test, the melting point range of the plastic can be determined and compared with the melting points of PP and PE. The melting point range of polypropylene is usually between 130°C and 171°C, while the melting point range of polyethylene is usually between 120°C and 130°C. Melting point testing can be done using a simple melting point tester or professional laboratory equipment.
4. Chemical testing: The composition and properties of plastics can be further determined by a number of chemical tests, such as infrared spectroscopy (IR) analysis or solubility testing. Each polyolefin plastic has a unique chemical structure and reaction characteristics, which can be analyzed to distinguish PP and PE.
It is important to note that more specialized testing and detection methods may be required to accurately differentiate recycled polypropylene from polyethylene. If you need to ensure the accuracy and recycled properties of plastics, please work with relevant professional institutions or laboratories to obtain more accurate results.
About Henan Pingyuan New Material Technology Co.
Established in 2017, Henan Pingyuan New Material Technology Co., Ltd. has an advanced remanufacturing enterprise integrating R&D, recycling, production and sales of recycled plastics with its factory located in the Economic Development Zone of Fugou County, Henan Province. The company is the world's leading recycled plastic recycling solution provider, with sales centers and warehouse bases in Ningbo City, Zhejiang Province and Dongguan City, Guangdong Province, respectively. We provide recycled plastic recycling solutions for global customers, serving more than 50 foreign trade enterprises and more than 800 factory enterprises in 15 countries and regions. The company has disposed and utilized more than 100,000 tons of various recycled plastics in total.
In September 2020, President Xi Jinping solemnly announced China's ambitious strategic goal of achieving carbon peak by 2030 and carbon neutrality by 2060 at the general debate of the 75th session of the United Nations General Assembly.
The company has long been committed to solving the increasingly serious environmental problems of mankind, deeply exploring the potential value of recycled plastics and promoting the continuous improvement of human living environment. In recent years, the company has taken the lead in carrying out ESG practices in the field of recycled plastics, actively promoting a green and low-carbon production and lifestyle, and continuously creating greater value.
The company is a national high-tech enterprise, a specialized and special new enterprise in Henan Province, and an engineering technology research center for recycled plastic recycling in Zhoukou City, Henan Province;
The company has passed the GRS Global Recycling Standard certification (the first domestic recycled plastic utilization company to obtain this certification);
American UL OBP 2809 tend to sea plastic certification (the sixth company in the world to obtain this certification for recycled plastic utilization);
ISO9001 quality system, 14001 environmental system and 45001 occupational health and safety management system certification; the company has obtained the U.S. Food and Drug Administration FDA test report, the German "New Food and Dietetic Products Act" LFGB test report, the French International Bureau of Inspection BV test report and other international third-party test reports.
The company has built the only set of high standard pilot laboratory in the domestic recycled plastics industry, and has a professional R&D team, and has deep cooperation with research institutes and universities such as Institute of Process Engineering of Chinese Academy of Sciences, Institute of Chemistry of Chinese Academy of Sciences, Dalian Institute of Chemistry and Physics of Chinese Academy of Sciences, Zhengzhou University, Henan University of Technology and Dalian University of Technology.
 Honorary President of the Hebei Chemical Society, Visiting Professor of Petroleum University (Beijing), etc.
From 2010 to 2017, he conducted postdoctoral research at Nanyang Technological University and National University of Singapore. He has conducted research in the fields of solid waste energy and high value utilization, nanofiber membrane separation, etc. His research results have won the second prize of technical invention of the Petrochemical Association, and he has presided over and participated in many national projects, published more than 100 papers in recent years in,, and other international journals, and applied for more than 40 invention patents, of which more than 20 have been granted Chinese invention patents. He has made outstanding contributions to Chinese scientific research.
The main test and inspection instruments are: falling ball drop tester, digital display cantilever beam impact tester (ISO standard and ASTM American standard), spectroscopic light box, spectroscopic colorimeter, temperature and humidity meter, melt flow rate meter, high-precision electronic balance scale, direct reading electronic density meter, rubber hardness meter, servo universal material testing machine, touch screen material horizontal and vertical burning tester, twin-screw high-mixing plasticizing pilot line.
Our main PCR PIR recycled plastic products, such as RABS, RPP, RPET, RPA6, RPA66, RRE, RPP, RTPR, RPC, RPVC, REVA, RAS, RTPU, RTPE, RPS and other materials, are mainly used in daily necessities, daily chemicals, clothing, shoes and hats, electronic and electrical, automotive, petrochemical and other industries. Our main customers are international brands or world top 500 companies such as LG Chemical, Hyosung, Kumho, BASF, Lego, Decathlon, Chanel, Estee Lauder, etc. in South Korea.
After more than ten years of forward-looking layout, the company has formed the upgrade of the whole industrial chain from waste plastic recycling to the application of high-value recycled products. The company adheres to the development idea of standardization, grouping and industrialization, focuses on building independent intellectual property rights and recycling brands, and drives the upgrading of the whole industry by means of technology and brand output, makes every effort to build a green, low-carbon and technology-enabled sustainable development of the circular economy industrial system, carries out ESG practices in depth, fulfills social responsibility with high standards, and becomes a model of green and low-carbon development. enterprises.
In the next forty years, the recycled plastics industry will lead to a strong development of blowout, and will form a trillion-dollar recycled plastics market demand. The company actively joins hands with upstream and downstream enterprises in the industry chain, third-party institutions, public welfare organizations and the government to seize the "double carbon" policy opportunity and market opportunity, based on the new development stage, complete, accurate and comprehensive implementation of the new development concept, build a new development pattern, with the goal of improving the utilization rate of recycled environmental protection materials, improving resource utilization efficiency, extending the The company aims to improve the utilization rate of recycled materials, improve the efficiency of resource utilization, extend the recycling industry chain, promote the construction of ecological civilization, and help achieve the global "double carbon" strategic goal.
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