Today the market sells plastic products and plastic utensils, with many different names. Including many types of plastic such as: PET, PP, PVC, ABS, PS, PC, PE, HDPE…
Among them, PP plastic is very popular, used in everyday life a lot. Including plastic bottles, plastic cups, plastic boxes, plastic food trays…
So what is PP plastic, PP material is toxic, properties and applications of PP in life ..? Let’s see Polyco plastic through this article to understand better..!
What is PP plastic ? What is polypropylene ?
First, let’s learn about what is PP plastic ?
PP plastic stands for polypropylene, a polymer with high mechanical strength. This is also a plastic product like other plastic bags, belonging to the primary plastic line, separated from crude oil.
PP primary resins are white, transparent or non-transparent. As a product has no taste, does not contain harmful substances, so it is necessary to add additives to make plastic products.
PP plastic products have high tear strength and shrinkage so the product is very hard. Highly heat resistant, can withstand temperatures up to 150°C.
==> Refer to what is PET plastic ?
What is PP packaging ?
PP packaging is a product made from PP plastic resins with high mechanical strength. Very good water and air resistance.
Should be widely used as packaging types, used as bottles. Or use food packaging, as a product protective film…
Is PP plastic toxic ?
Belongs to primary resin, distilled from crude oil, transparent, odorless, tasteless. And there are no harmful substances, or harmful chemicals, so it is very safe to use.
With a smooth, anti-fouling surface, PP plastic products are used many times. Easy to clean after use, good chemical resistance to acids.
Therefore, PP plastic is produced as products for everyday use, including plastic food containers, plastic lunch boxes, plastic confectionery boxes…
Chemical formula PP plastic
- Molecular formula: (C3H6) x.
- Crystal PP: 0.95g / cm3.
- Density: PP amorphous: 0.85g / cm3.
- Melting temperature: ~ 165 ° C.
- Elongation: 250 – 700%.
- Tensile strength: 30 – 40 N / mm2.
- Toughness and impact resistance: 3.28 – 5.9 kJ / m2.
PP plastic properties
Good heat resistance: PP plastic has very good heat resistance, the product is kept at 120 ° C without being affected. So plastic food containers can be kept in the microwave, reheated, or stored in the refrigerator.
Oxidation resistance: Not waterproof and waterproof, so there is no corrosion or abrasion phenomenon for these product lines.
Mechanical durability: PP plastic has very good tear strength and hardness, does not tear and stretch like PET plastic, good impact resistance.
High gloss: The surface of PP plastic or PP plastic is glossy, smooth, highly anti-fouling, easy to clean.
Safety: Because of its high safety, PP plastic has many uses in life, especially food and beverage products.
Application of PP plastic
The most common PP plastic product, can be named plastic food containers. Plastic containers are used to store hot and cold foods and foods.
Or plastic bowls, plastic bowls, plastic dishes, plastic cups, as these are used everyday. PP plastic has been used many times as a very suitable solution.
Also used as a bottle of milk, a milk container for babies. Types of children’s games, making water bottles, thermos bottles…
==> If you want to learn more about plastic, you can refer to what is plastic article ?