Modified PPE plastics are manufactured by Ensinger under the brand name TECANYL. Ensinger is a PPE supplier of shapes such as:

PPE plastic material is rarely used in its pure form. It is mainly used as a PPE blend with other polymers such as PS, PBT or PA, or modified by blending additives such as glass fibres.

PPE plastic, often referred to as PPO™ plastic (polyphenylene oxide), is an amorphous thermoplastic with high heat resistance. It has excellent chemical resistance to water and most salt solutions, acids and bases. PPE polymer also has extremely low moisture absorption and is not affected by repeated exposure to water. It therefore offers good electrical insulation properties over a wide range of humidity and temperature, as well as good dimensional stability.

So I take a look at both processes of plastics extrusion and injection moulding processes, and they look the same to me. Can someone explain the differences in as simple terms as possible (using plastics as the material)?

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