Views: 8 Author: Xicheng Ep Ltd Publish Time: 2021-09-23 Origin: Xicheng Ep Ltd
At present, PP material is widely used in plastic production. Do you know about PP material?
PP plastic is actually polypropylene, and polypropylene is a polymer formed by the addition polymerization of propylene. It is an organic substance and a white waxy material with a transparent and light appearance.
PP plastic has the characteristics of low density, non-toxic, colorless, odorless, corrosion resistant, and good heat resistance.
PP plastic classification
It is susceptible to degradation by ultraviolet rays and has poor resistance to chlorinated solvents and aromatic hydrocarbons. It is difficult to spray on the surface because it has poor adhesion properties, is highly flammable, and is prone to oxidation.
Food grade PP
Food grade PP will not dissolve harmful substances under normal conditions and high-temperature conditions. Food grade PP plastic can be made into any food plastic packaging, such as food special plastic bags, food plastic boxes, food straws, etc., safe, non-toxic and resistant to low temperatures, It has good high-temperature resistance, and its products can be disinfected and sterilized at a temperature above 100°C.
PP material selection guide
PP material products are generally pp materials, but many claimed pp materials are not pure pp, so you need to pay attention when buying, and food-grade PP materials that are harmless to the human body are the best.
Good pp materials are generally transparent or translucent materials, with a glossy appearance, beautiful design, and no burrs, which can be seen through the appearance.
Heat resistance is the high-quality characteristic of polypropylene materials. Good polypropylene materials have very high heat resistance. They will not be deformed in high-temperature water and can even be
Sterilize in boiling water. In addition, the impact resistance of polypropylene material is also very high-quality, it is not easy to break when pressed or impacted, and will not leave scratches.