Weihai Hanwell New Material Co., Ltd.
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High Performance Expanded Polypropylene Granules Foam Raw Material
History of EPP
EPP was originally developed in the 1970s as a result of research into new forms of polypropylene, and the material was first applied to automotive products in Japan in 1982. Since then, demand for EPP has increased dramatically around the world, in part due to the need for automakers to improve energy management features while reducing weight and improving environmental benefits.
the first automotive application for EPP was for energy absorbing components in bumper systems. Today, EPP is used in a wide range of other automotive components and systems, including seats and other interior components.
EPP Related Information Form
| Raw Material | Description |
|---|---|
| Polypropylene | EPP is made from polypropylene beads that are expanded using steam and molded into various shapes. Polypropylene is a thermoplastic polymer that is known for its durability and resistance to chemicals and high temperatures. |
| Blowing Agent | A blowing agent is used to expand the polypropylene beads during the molding process. Typically, a hydrocarbon blowing agent such as n-pentane or cyclopentane is used. These blowing agents are environmentally friendly and have low toxicity. |
| Pigments | Pigments are added to the EPP material to give it color. The pigments used are typically organic or inorganic and are added in small amounts. EPP can be produced in a wide range of colors. |
| Flame Retardants | Flame retardants can be added to EPP to make it more resistant to fire. Typically, brominated flame retardants are used, but there are also non-halogenated options available. |
| Anti-static Additives | EPP can be made anti-static by adding additives such as carbon black or metallic compounds. These additives help to dissipate static electricity and reduce the buildup of static charge. |
| UV Stabilizers | UV stabilizers are added to EPP to prevent degradation of the material due to exposure to sunlight. These additives absorb UV radiation and convert it into heat, which is then dissipated. |
| Lubricants | Lubricants can be added to EPP to improve the flow of the material during processing. These additives can also reduce wear on processing equipment. |
| Fillers | Fillers such as talc or glass fiber can be added to EPP to improve its mechanical properties, such as stiffness and impact resistance. |