Features

Non-toxic, tasteless, density, strength, stiffness, hardness and heat resistance are superior to low pressure polyethylene, can be used at 100 ℃. It has good dielectric properties and high-frequency insulation and is not humidity, but the low temperature brittle, do not wear, easy to aging. Suitable for production of general machinery parts, corrosion-resistant parts and insulating parts. Common acid and alkali organic solvents it almost does not work, can be used for utensils.
Polypropylene has many excellent features:
1, the relative density of small, only 0.89-0.91, is one of the lightest plastic varieties.
2, good mechanical properties, in addition to impact resistance, the other mechanical properties than polyethylene, good processing behavior.
3, has a high heat resistance, continuous use temperature up to 110-120 ℃.
4, good chemical resistance, almost non-absorbent, does not react with most chemicals.
5, pure texture, non-toxic.
6, good electrical insulation.
7, polypropylene products, transparency is high density polyethylene products, good transparency.
It has many advantages but also disadvantages:
1, poor cold products, low temperature impact strength.
2, the product in use, subject to the action of light, heat and oxygen and aging.
3, the coloring is not good.
4, easy to burn.
5, good toughness, high static electricity, dyeing, printing and poor adhesion.