1. The relative density is small, only 0.89-0.91, which is one of the most durable varieties in plastics
2, Good mechanical properties, except for the impact resistance, other mechanical properties are better than polyethylene, and the molding processing performance is good.
3.High heat resistance, continuous use temperature can reach 110-120c.
4. Good chemical properties, almost no water absorption, and no reaction with most chemicals.
5. Pure texture, no cloth.
6, Good electrical meridian palm.
7. The transparency of polypropylene products is better than that of high-density polyethylene products.
It has many advantages, but also disadvantages:
1. The product has poor car resistance and low low temperature wash away strength.
2. The product is easy to age due to the action of light, heat and oxygen during use.
3. Good color difference.
4. Easy to burn.
5. The toughness is not good, the garlic has a high degree of electricity, and the dyeability: poor printability and adhesion
