PE plastic recycled materials belong to the category of renewable resource tax rebate tests, and the higher tax rate can be as high as 50%. Green manufacturing has always been one of the recommended strategic plans. PE plastic recycled materials fully meet the requirements of green, low-carbon, recycling and other ecological economy, with the improvement of the quality and efficiency of renewable resources and the requirements of transformation and upgrading, PE plastic recycled materials quality standards have become an important part of the standard system to promote the upgrading of renewable resources industry and technical products. Due to the complexity of waste plastic recycling production, the performance of recycled plastics varies greatly, and it is difficult to ensure the quality of recycled plastic products, resulting in quality defects of recycled plastic products. The existence of these problems has caused the use of recycled plastic products to be greatly limited, affecting the confidence of users. The properties of recycled materials will directly affect the quality of its products. Only by accurately grasping the performance indicators of recycled plastics can we ensure the quality of recycled plastics, evaluate the quality of recycled materials scientifically and reasonably, recycle recycled materials more effectively and scientifically, and better realize the high efficiency and high value of waste plastics.

The detection of PE plastic recycled materials provides a reference, and we also accurately describe the quality and properties of PE plastic recycled materials. After comprehensive opinions, GB/T 39199-2020" Characteristics and test methods of polyethylene plastic recycled materials "was officially released on October 11 this year, and will be officially implemented on May 1 next year. GB/T 39199-2020 is suitable for the processing of waste polyethylene plastic products with polyethylene as the main component and the detection of recycled materials after treatment.

The test items of PE plastic recycled materials are mainly divided into two categories: basic characterization characteristics and reference characterization characteristics. Specific indicators are as follows:

1. Test items: color, particle size, odor, density, solution mass flow rate, ash content, tensile yield stress, tensile fracture strain, tensile fracture nominal strain.

2. Reference test items: other polymer content, impurity content, impact strength, bending strength, water content, Shore hardness, harmful element content, transferable heavy metal content.