Selection process and advantages of PP recycled materials
PP is the abbreviation of polypropylene plastic, PP recycled material is polypropylene recycled material. Regeneration also refers to recycling, which is a general term for secondary thermoplastic treatment of new raw materials. After the general plastic is used once, it can be used as raw material again after the thermal extrusion granulation of the recycling machine, and the polypropylene material that is recycled and extruded is called PP recycled material.
PP is the abbreviation of polypropylene plastic,PP recycled materialThat is, polypropylene recycled material. Regeneration also refers to recycling, which is a general term for secondary thermoplastic treatment of new raw materials. After the general plastic is used once, it can be used as raw material again after the thermal extrusion granulation of the recycling machine. The polypropylene material that is recycled and extruded is calledPP recycled material.
PP recycled materialThe selection process
1. the first processing of raw materials, sorting
1、PP recycled materialSource of raw materials: PP mostly comes from daily necessities, such as plastic boxes, foot basins, buckets, rice baskets, stools, woven bags and other packaging woven fabrics, packing belts, etc.
2、PP recycled materialSelection of materials:
First of all, different colors are separated, because it will be more convenient to use after separation, and the price can also be improved a lot. Therefore, it can be used according to different colors and shades, so the color separation has many benefits. If the color is not separated, the production can only be black, the scope of its use is small, and the economic benefits are poor.
2. broken, washed, sun dried
Will be classified firstPP recycled materialThe raw materials are put into the crusher for crushing process. Then the crushed debris is sent to the cleaning tank through the conveyor belt, cleaned by high-pressure water flow and several rollers in the cleaning tank for repeated cleaning. After cleaning, the debris is sent to the next process through the conveyor belt, and then the residual water is dried by the water spinning machine, and then dried in the sun for standby.
3.PP recycled materialof the mixing color
Generally with a blender or artificial stirring and add color and auxiliary. However, adding color and additives with some new materials or toughening agents should be done according to what products are produced.
4.PP recycled materialThe granulation process
Put the washed raw materials into the tank and pass through the heating box (the temperature during heating should not be too high, it is easy to be brittle, and the temperature control must be paid attention to) and burn into a black solution. Then, add calcium carbonate, stirring, stirring to be relatively uniform. Then wire drawing is carried out, and the wire drawn goes through the cold water tank and enters the next process.
The cutting standard is generally 3mm * 4mm, otherwise the appearance of the best material is not good-looking and standard. However, the discharging speed of the good or bad granulator should be standard, and the granulator blade should also be installed, otherwise the granulator cannot be cut well.
PP recycled materialWidely used in daily products, home appliances, toys, stationery, bags, cosmetic boxes, audio-visual products and other fields.
Generally used for injection molding, extrusion, drawing.
Because the world's resources are always a hot topic of human beings, the slogan of saving resources has gradually penetrated into the hearts of the people, so the awakening of recycled materials is also inevitable, so that people can achieve environmental protection and energy saving through the recycling of resources. The advantage of recycled materials is that the price is cheaper than that of new materials. Although its overall performance and properties are not as strong as that of new materials, we do not need to use materials with good properties and properties in many aspects to make them in many products. This wastes a lot of unnecessary properties, while recycled materials are different. According to different needs, we only need to process certain properties, it is enough to produce the corresponding products, so that resources will not be lost.