Recycled materials in plastic pallets are of uniform size and no magazines

The materials of plastic pallets can be divided into brand-new materials (generally called raw materials) and recycled materials (generally called clinker). Brand-new materials are higher in performance than recycled materials, and the price is obviously higher than ordinary materials. The proportion of recycled materials also directly affects the price of plastic pallets.

The recycled material tray is a one-time injection molded tray with a certain proportion of recycled material. It is obvious that the more the proportion of recycled material, the lower the cost and the lower the price.

From the appearance, the recycled plastic has poor gloss, the surface of the particles is dull, the size is uneven, contains impurities, and they are generally colored or gray; while the new material has a good gloss, the surface of the particles is smooth, the size is uniform, and it does not contain magazines. It is colorless or milky white. The new material is bright in color and the old material is dim in color. In addition, if we want to distinguish carefully, we can distinguish from the following 7 aspects:

1. Color: the transparent ones are better than the opaque ones, no matter what the color is.

2. Gloss: Good gloss is better than no gloss, which is the color of the surface of the material.

In terms of physical and mechanical properties, recycled materials are made from waste products. After wind and sun, the surface of the plastic has been degraded and degraded. It has been melted and plasticized by multiple high-temperature processing. Under the action of light, oxygen and high temperature, part of the polymer After being oxidized, the macromolecular chain will be broken and degraded, which will reduce the physical and mechanical properties.

3. Wire drawing: After blowing out the fire, quickly touch the melt with an iron object, and then quickly pull it apart to see if the shape of the wire is uniform. If it is uniform, it is good material. After pulling a few times, overlap the wire , Pull it apart again to see if it has elasticity, and whether it can be pulled apart again and continuously. It is good that it does not break or breaks after a certain distance.

4. Ignite (check whether the color of the flame emits smoke, whether it contains burning away from the fire or not burning at all);

5. Smell the smell (various plastic smells are different, including flame retardants, etc.);

6. If the above can not be confirmed, please use fire again. During the burning process, black smoke will be emitted or the melt will drip quickly, which is not good.

7. Floating water: As long as there is submerged water, it is bad. If the above is still uncertain or undecided, there is only a test machine.