Injection Moulding

Injection Moulding

The injection moulding process is challenging when it comes to bioplastics. Earlier, the process was both expensive and incompatible. But over a period, as bioplastics evolved to replace traditional plastics, the technicalities improved, giving scope for injection molders to experiment with different bioplastics. Some bioplastics used for injection moulding include starch and wood plastics, while Biodegradable polymers like PBAT and PLA are suitable for injection moulding.

Like traditional plastic, bioplastic polymers can be blended and alloyed to expand their physical properties, tensile strength, flexural modulus, or impact strength. Bioplastics can be customised by mixing or alloying common polymers to improve the product’s characteristics.

Injection moulding solutions for bioplastics are successful as they seamlessly integrate into the process without needing additional equipment. PLA bioplastics are transparent and can be used in the medical devices and packaging industries. It is firm, heat resistant and comes with a low melting point. Polybutylene adipate terephthalate (PBAT) is a blend of bio-based and petroleum raw materials known for its flexibility and toughness. It is used in consumer goods, agriculture films and flexible packaging. The success of the output depends on the selection of bioplastic for injection moulding.