You need to understand the four uses of pp plastic particles!
Do you know what pp plastic particles are? Today, we will introduce the characteristics and uses of pp plastic particles in detail. pp plastic particles are non-toxic, odorless, tasteless Milky White crystalline polymers with high crystallinity, regular structure, excellent properties and a wide range of applications. Its application has promoted the development of the plastic pellet market.
Do you know what pp plastic particles are? Today, we will introduce the characteristics and uses of pp plastic particles in detail.
pp plastic particles are non-toxic, odorless, tasteless Milky White crystalline polymers with high crystallinity, regular structure, excellent properties and a wide range of applications. Its application has promoted the development of the plastic pellet market.
PP plastic particles have excellent mechanical properties, and their yield strength, tensile strength, compression strength, hardness and elasticity are higher than those of hdpe. The melting point is 164-170, and the product can be sterilized above 100. The chemical stability of polypropylene is very good, in addition to being corroded by concentrated nitric acid, it is also very stable to other chemical reagents.
The main uses of PP plastic particles are as follows:
1. Re-manufacture PET bottles. The recovered pellets cannot be used in direct contact with food. They can be used in the middle layer of a three-layer pet bottle and then made into a carbonated beverage bottle.
2. Spinning makes fibers. Recycled materials can be used to spin fibers, which can be used as pillows, mattresses, sleeping bags, blankets, etc.
3. Glass fiber reinforced materials, glass fiber reinforced recycled pet has good heat resistance and mechanical strength, can be used for heat-resistant automobile wheel cover and other auto parts manufacturing, thermal deformation temperature up to 240 degrees. The flexural modulus was 9500mpa, the flexural strength was 214 mpa, and the impact strength was 15kf/m2.
4. Blending modification, recycled pet material can be blended with other polymers to prepare various modified materials. For example, blends with PE can give blends with improved impact properties, and the ratio of PE to PET is (10-50)(90-50): If a small amount of polypropylene is added, the dimensional stability of the blends can be significantly improved. Due to the large difference in polarity between pe and pet, compatibility treatment should be carried out during blending, and the compatibility is generally improved by grafting modification of polyolefin.
These are the main uses of pp plastic granules. It can be seen that it is widely used.
After the waste plastic is processed into recycled plastic particles, it only changes the appearance and shape, not the chemical properties. They still have good comprehensive material properties and can meet the process requirements of film blowing, wire drawing, pipe drawing, injection molding, extrusion, etc. They are widely used in the production of plastic products. PP plastic particles can be used for stretching and injection molding at most, and can also be used for pipes. PVC is used for pipes, bicycles, motorcycle handles, sole materials, etc. ABS granulation is used for appliances and toys. In addition, alloy materials such as PC /ABS can be used as mobile phone shells, so it is very versatile.