The effect of pigment on rotomoulded polyethylene powder and micropellets

M. P. Kearns*, M. P. McCourt, R. Ervik

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents the results from investigations into the differences in the rotational moulding and mechanical properties between pigmented polyethylene powder and micropellets. Both high shear and low shear pigment blending methods were examined, as were a range of pigment addition levels. This was followed by a series of mechanical and analytical tests on the rotomoulded articles to determine properties. Whilst micropellets tended to produce a different surface porosity than powder, few bubbles were evident within the wall thickness for both high shear and low shear blending. For high shear blending, with pigment addition levels up to 0.05%, similar impact properties were noticed for both powder and micropellets. Low shear blending resulted in more inconsistent impact values. There were also more visual inconsistencies in articles produced from powder.

Original languageEnglish
Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
Number of pages5
Publication statusPublished - 2006
Event64th Annual Technical Conference for Plastic Professionals - Charlotte, NC, United States
Duration: 07 May 200611 May 2006


Conference64th Annual Technical Conference for Plastic Professionals
Abbreviated titleANTEC 2006
Country/TerritoryUnited States
CityCharlotte, NC

ASJC Scopus subject areas

  • Engineering(all)


Dive into the research topics of 'The effect of pigment on rotomoulded polyethylene powder and micropellets'. Together they form a unique fingerprint.

Cite this