Study on Green Evaluation System of Polymer Materials

With the increasing number of modern polymer products, polymer waste has become an important source of environmental pollution. The EU environmental protection directive RoHS is about to be implemented, and China's corresponding management measures will soon be introduced. For the polymer processing industry, how to deal with export trade barriers and meet environmental protection requirements has become one of the priorities. This requires that when evaluating and using polymer materials, not only performance and cost, but also environmental factors should be considered.

As production increases, polymers have become one of the major sources of waste, with a huge impact on the environment. At present, many countries have successively formulated environmental directives and regulations for products, requiring producers to be responsible for the 3R (reuse, recycle and reduce) disposal of waste products, in which polymers account for a considerable proportion. Japan implemented the Household Appliances Recycling Act (HARL) in 2001. The EU implemented the WEEE Directive in April 2005 and will implement the RoHS Directive in July 2006. Similar instructions from China are also being worked out and are expected to be implemented soon.

All of these directives require producers to achieve higher recycling rates for products and reduce the final waste of the product. Figure 1 shows the recycling ratios of different materials achieved in Europe's current electrical products. It can be clearly seen that the recovery of polymer materials has become a bottleneck restricting the overall environmental command matching of products. This requires that in addition to considering the performance and cost of the material itself, the recyclability and environmental impact of the material should be fully considered in the development and production of the polymer. In this paper, the recyclability and environmental impact of materials are collectively referred to as greenness, but in many cases the recyclability and environmental impact of materials are not completely consistent, which is especially evident in metallic materials. Metal materials have good recyclability, but they have a large environmental pollution impact during processing and recycling.


Figure 1 Status of recycling of different materials in European electrical products

Due to the important influence of polymer materials on the environment, the green evaluation system of polymer materials has become one of the focuses in the field of product life cycle research in recent years. KG Snowdon has established a polycarbonate/ABS aluminum panel product life cycle evaluation system based on the environmental impact of polycarbonate materials. H. Terho performed LCA (Life Cycle Assessment) analysis on Nokia cables of PBT/LDPE materials and compared the environmental impacts of materials such as LDPE, LLDPE and HDPE. G. Lewis et al. conducted a life-cycle analysis and simulation of the photo-sensing components of United Solar Systems Corporation's UPM-880 product, the main materials being Tefzel (a polytetrafluoroethylene resin) and EVA. D. Pollock et al. conducted LCA studies on materials such as PE, PP, and polyester in inkjet print cartridge products. H. Tomita et al. conducted LCA studies on material recovery and recycling of compact tapes and compact disks (main materials PS, polycarbonate, and PC). JA Stuart analyzed and summarized the material selection model in product life cycle design. R.Kulkarni established an evaluation system for the environmental impact of electronic components based on the Environmental Assessment (EIA) software system. These studies are specific to a specific class of products and polymer materials, primarily for environmental impact analysis of materials in the product. After the implementation of the environmental directives of the product, the polymer itself needs to be the object of research and analysis. Through the life cycle analysis of polymer materials, the 3R condition of the simulated polymer materials is predicted, and a green evaluation system reflecting the characteristics of the polymer is established.

3R based polymer life cycle

3R is expressed as increasing the ratio of Reuse and Recycle, and reducing the final discard. For products, re-use means that the parts of the product are directly invested in the production of new products or the maintenance of the old products; recycling means recycling of the materials; and disposal means that some of the materials produced in the next stage cannot be entered. From the perspective of polymer materials, this concept needs to be reset: reuse means that the material can be directly invested in the next stage without adding other components; recycling means that the material is added after the other components are modified. The next stage of production; and waste means that the performance of recycled polymers is no longer sufficient for remanufacturing. At this stage, how to reduce the final solid waste is the key to reduction. The life cycle of the polymer is shown in Figure 2(a), and Figure 2(b) shows the change in properties of the polymer over its life cycle. The time point Tm indicates the time when the polymer enters the Recycle stage, and the time point Tn indicates the time when the polymer enters the waste phase.


Figure 2 Polymer life cycle process

Flame retardant clothing are garments made of fabrics with flame retardant properties that protect workers from fire. According to the style can be divided into FR Coveralls, FR Jackets, FR Shirts, FR Pants , FR Suits , FR Bibs , FR knitted t-shirt and so on. Customers can choose the style that suits them according to their working environment, and we support ODM.Customers can design the flame retardant clothing styles they want for us to produce.
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FAQ
Q: How to ensure your the delivery time?
A: -We have modern automated assembly lineproduction equipment, just 120 seconds is needed from the first process to the last one;
 -Moreover,we have prepared finished fabrics which can be produced into clothes immediately to short the delivery time to15-20 days;
 -Urgent order will be deal with immediately.
Q: What`s your payment terms?
A: EXW, FOB, CNF, CIF and L/C payment terms etc.
  Other terms can be negotiated.
Q:Can you producesmallorders?
A:Yes,we do. If your order is smaller than our MOQ, we can arrange special for you but the cost would be higher.
Q: How to ensure your product quality?
A:We have the;the most advanced testing equipment. Two inspections are taken in the factory and the laboratoryto ensure that each batch ofproduct is with high quality.
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Q: Do you provide the sample? How long it takes?
A: Sample can be provided.
Delivery time: Regular item in stock can be delivery in 1-2 days.
Your Customize will takes 7-10 days.
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A: Yes, we can customize the design for you, which exactly as your demand.Your LOGO can be put on clothing by format of EMBROIDERY, SCREEN PRINTING etc as requested.

Q: How many times washing your FR garment can endure?
A: More than 50 washing time for Europe standard.
  More than 100 washing time for NFPA standard.

  Washing time can be customize according to require and market.


Q: Is that possible to be your agent or distributor?
A: Yes, of course. We are glad to work with you together to develop the market.
  Feel free to contact us for more information.
  We are the OEM manufacturer for FR Workwear, we are developing partners to occupy our market share.

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