Judging the quality of regenerated particles
Pingyuan Technology 2020-09-15 9
With the improvement of people's living standards, more and more people pursue environmental protection. At this time, recycled plastic particles conform to the trend of social development and meet people's pursuit of life. How can we distinguish the good from the bad for the recycled particles? Today, Yuyao ABS plastic particles experts for you to introduce in detail.
1. Look at the color:
The lighter the color is (even colorless and transparent), the wider the application range and the higher the grade. Such as white, can be adjusted into a variety of other colors, can also be used back to white products, the same price is high. Secondly, because of the needs of the product, various ingredients have been added to the raw materials.
2. Look at the content of CaCO3 (stone powder)
The higher the content of CaCO3 and the lower the grade, the lower the price. From the naked eye, if the product is not bright or glossy (except for matte), the content of CaC03 will be more, and it will feel heavy from the handle. If the product is burned with fire, the burned part will turn red and turn to ash after quenching. In addition, we should also pay attention to the reinforced (glass fiber) products. Only PA, PBT, PP and other reinforcement products can be used, and the prices are not high. There are several kinds of alloy materials, domestic market, only ABS + PC one, other are not. According to the specific gravity (density) of raw materials to judge whether the mixed materials can be reused, the most problems are ABS and PS mixing, PC and PMMA mixing, PVC sheet material (bottle material) and pel, sheet material mixing, PE and PP half mixing. These materials are difficult to use because of the similar density
3. See whether the recycled plastics are pure or not
The purer the material property is, the higher the grade is; the impure material property is low grade, some of which are mixed with each other, even no one wants it.
4. Difference with waste plastics
Waste plastic is directly crushed into powder or granular plastic products, which can still be identified as what material, such as injection molding, wire drawing, or film, etc. However, the recycled raw meal can not be accurately distinguished by the number of times it has been recycled. It can only be divided into grades according to the number of cycles. At the beginning of the least, it can be divided into super grade, first grade and second grade.