Polyamides are synthetic or natural polymers. They are made up of amide groups that are repeated and interconnected by amide links.

They have increased crystallinity, and thermal and chemical resistance due to the presence of hydrogen bonds.

Polyamides generally have poor resistance to moisture absorption, but, on the upside, some have excellent tensile strength and impact resistance.

Typical Structure

Low Density Polyethylene (LDPE) is a type of polyethylene that is characterized by its low density, high molecular weight, and flexibility.

It is widely used in various applications due to its versatility, moisture resistance, and low melting point.

Some common uses of LDPE include plastic bags, films, and sheets, as well as packaging materials for food and consumer goods.

Typical Structure

Odorless, tasteless, non-toxic. It is the lightest of the commonly used resins.

Excellent mechanical properties, including tensile strength, compressive strength and hardness, outstanding rigidity and bending fatigue resistance, poor impact strength at low temperatures.

Good heat resistance, continuous use temperature can reach 110-120℃

Typical Structure

Anti blocking agent：reduce frictional forces between the film layers in contact, thereby improving the handling and conversion of the film.

Anti-fog agents：prevent the condensation of water in the form of small droplets on a surface which resemble fog.

Slipping agent：a type of additive used to improve the performance of plastic films. They are designed to reduce the coefficient of friction between two surfaces.

Typical Structure