Assessment of processibility and properties of raw post-consumer waste polyethylene in the rotational moulding process

• DOI: 10.1515/polyeng-2021-0212
• Publication Date: 2022-02-07T18:13:51Z
• Authors: Louise Pick; Paul R. Hanna; Luke Gorman
• Keywords: Injection moulding

Abstract This paper presents work from an ongoing study into the use of post-consumer waste polymer in rotational moulding process. Raw plastic recyclate, predominantly consisting polyethylene, was processed powders containing additive package suitable for moulding, with and without addition a compatibiliser. Rheological studies on materials showed very high viscosities at low shear rates comparison typically used which has significant implications melt flow bubble removal during It possible to mould successfully, but poor surface finishes were achieved. Impact strength drastically lower recyclate mouldings compared virgin material. Tensile reduced results indicated that optimising processing conditions could lead improvements. gives some baseline indicators inform further planned identifying viable material compositions.