ANTIOXIDANTS/STABILISERS | ADDITIVES
stability and UV protection are expected. Additives need to be tailored accordingly, he says. According to BASF, there is a great need to find additive solutions to support an accelerating plastics recycling market. “Technically, recycled plastics present more challenges than virgin materials because they have suffered and aged through their first life. Therefore, new antioxidant and stabilisation solutions are needed to address the challenges of each application and material stream,” says Sties. As part of the company’s broader Valeras sustainability portfolio, it has introduced a range of additives under the IrgaCyclebrand to address the mechanical recycling market. Five core products address some key challenges for recycled polyole- fins — gel formation, processing instability, UV sensitivity and other mechanical failures. Knowing that the recycling market and streams are highly variable — regionally, seasonally and by consumer demand — the company expects to develop new solutions to support increasing recycled content concentrations and performance demands. “Recycled polyethylene designed for film
applications can exhibit high levels of gel forma-
tion and poor processing stability. To resolve these issues, additives must be included in processing as early as possible to prevent thermal degradation during regranulation and to provide appropriate stability for subsequent film extrusion processes. For example, IrgaCycle PS 031 G restabilises rPE films and prevents crosslinking even after multiple heat and extrusion cycles,” says Sties. Further technical challenges foreseen by Sties include contamination of the recycled polymer by residual pigments and waste, as well as other
Above: This floating
photovoltaic prototype at BASF’s
McIntosh plant in the US uses its new Tinuvin 2730 ED stabiliser
November 15 6 - 10PM
Punch Bowl Social Cleveland NETWORKING PARTY
Sponsored by
BOOK YOUR Highlights from last year’s party TICKETS TODAY
IMAGE: BASF
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64
