Waste plastic bottle procurement points

The recycling of waste plastic bottles is an important means to reduce the production costs of enterprises and improve the production efficiency of enterprises. How to choose a variety of recycled plastic bottles? According to the types of plastic bottles, there are different points for selection. The purchaser should select the plastic bottles suitable for their own companies according to their own characteristics.

First, mineral water bottles. Mineral water bottles are generally cleaner, because they are transparent and there is no water to be seen. The main attention should be paid to the following: First, check whether PVC bottles are mixed, estimate the content of PVC bottles, and secondly, look at the colors. Estimate the colors. The content of the bottle, the closer to the original color, the higher the price, and the closer to black the lower the price. Look at the thickness of the bottle, because some bottles are thicker and some are thinner. Thick bottles produce faster when they are processed, and they come with beautiful materials and high prices. Thin bottles have low yields, poor whiteness, and low prices. Then estimate the content of other impurities.

Second, milk bottles. Most milk bottles are made of HDPE. Generally, it is only necessary to see if the inside of the milk is clean. Because the milk bottle is not transparent, it is not possible to see if it is not completely clean. This should be checked carefully. If there is a lot of milk, If you take a long time, it will smell bad.

Third, detergent bottles, shampoo bottles shower gel bottles and so on. This kind of bottle is more complicated, and the materials used by various manufacturers are different. The materials for such bottles include: PET, PVC, HDPE, etc.

This type of bottle is generally opaque in color, and most of the contents of the bottle are not completely clean, so the processed material is of lower color. It is worth mentioning that the prices of PET and PVC bottles are relatively low, and the quality of bottle materials is generally better. The purchasing quality of bottles is most important. The appearance of foreign impurities can be seen and can be estimated.

However, there is no water or other impurities inside it is difficult to see clearly, so the bottle is more difficult to purchase, but also should be carefully examined and carefully evaluated. control risk.

Fourth, the outlet material broken material. Crushed material procurement must first look at whether the overall material is consistent, followed by looking at the quality of the material, color, and then look at the purity of the material, several materials should pay attention to:

1, PP, PE broken material. Look at PP and PE will not be mixed, check whether mixed with other plastic, you can put some into the water, see if there is no sink, and then check what sinking material, if sinking no other material The explanation is that it only contains fillers. If there are other materials, the sinking of this material will be difficult to handle, the fineness will be reduced, and the price will be reduced.

2, ABS. First of all, let's see if we have mixed PS/HIPS. How much fineness is mixed, because the price of ABS mixed with PS/HIPS is much different from the price of pure ABS, and there is no way to separate them. The higher the ratio is, the lower the price is, and the worst is 50%, ABS. The worst mix to PS, HIPS mix also has a great impact on the quality of ABS.

Then check if there are any other plastics mixed into the plastic. There are several different types of plastics. What is the ratio of each of them? There is no way to separate them and there is no value. Then see if there are other materials filled, mainly adding glass fiber, flame-retardant materials, added will affect the quality and value of ABS. It also depends on whether the raw material produced by the reclaimed material is recycled.

3, PS, HIPS. The problem of mixing PS/HIPS is not big. It is mainly mixed with ABS. Just like ABS mixed with PS/HIPS, they can't be separated. The method of viewing is the same as viewing ABS. PS has good compatibility with calcium carbonate, so check to see if it contains filler powder. The greater the proportion of filler powder, the greater the price and the lower the price.

4, PVC. Let's take a look at some plastics that have not been mixed with PC, PMMA, POM, TPU, PBT, PET, etc., because the proportion of PVC is also relatively large, and if mixed, it is difficult to separate. If the PVC nozzle is mixed with PP, PE, EVA can be separated with water and mixed with ABS. PS can be separated with brine. Look at the quality of other impurities and materials. PVC can be highly filled with calcium carbonate, clay, and kaolin. It can be filled up to 70% or more. The higher the charge, the lower the price; the gloss is good, the transparency is high, and the toughness is good. The quality is better. So look carefully at the purchase.

5, other broken materials. Others such as PC, PA, POM, PBT, PPS, PPO and other engineering plastic outlet. As the amount is relatively small, there are some engineering plastics that have been modified and have a certain degree of difficulty in identification. If they are blended with other plastics, it is difficult to separate them. Some glass fiber reinforced plastics have very low value, and it's very troublesome to mix several engineering plastics. Many of the mixes cannot be separated, so the quality and purity of the engineering plastics mouthpieces are very important. The profit of engineering plastics is relatively high, but the risk is great. If the procurement mistakes, it will lose more. It is recommended that procurement personnel undergo professional training. Unprofessional procurement personnel must be careful. Be sure to look good when purchasing, carefully evaluate and control risks.

The profit and risk of waste plastics coexist, and procurement is an important part of profitability. Attention must be paid to the purchase of waste plastics: quality, impurities, moisture, composites, filler content, mixes, high-temperature materials, thermosetting plastics, colors, Condition. Only by controlling risks can we be invincible. Only by purchasing good materials can we increase profits.