COMPATIBILISERS | MATERIALS
for matching polarities such as needed with copolymer compatibilisers and depolymerisation concerns when maleated copolymers come in contact with condensation polymers such as PET and polyamide.” In his abstract for another paper due to be given
later this year, Monte says: “Current plastic recy- cling and sustainability goals are limited by the intrinsic incompatability of many polymers and the negative effect of fillers and impurities on end- product properties, thus requiring a high degree of expensive sorting, separating and cleaning. Another barrier is the melt processing of polymers causes chain scissoring resulting in recycle and regrind materials having inferior properties compared to virgin. “Current compatibilisers offered to recyclers are based on co-polymers or maleic anhydride modified polymers. Co-polymer compatibilisers require extensive sorting to match up the polarities of the recycled materials and maleic anhydride depolymerises condensation polymers such as PET and Nylon obviating their use in post-consumer recycle. MAH technology claims to be a coupling agent, which is true for rebuilding molecular weight – but, misnomered when applied to coupling filler and organic interfaces.”
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.exxonmobilchemical.com �
www.struktol.com �
www.vertellus.com �
www.cornell.edu �
www.twin-cities.umn.edu �
www.4kenrich.com
ImerPlast offers help to meet UK recyclate target
Polyolefin recycler ImerPlast UK says its IM30 recycled PE-PP compound can benefit companies needing to comply with the UK government’s proposal for plastics packaging to have 30% recycled content – or otherwise pay a new packaging tax. The ImerPlast IM30 compound is a polymer alloy consisting of PP and HDPE that are compatibilised using a patented mineral- based compatibiliser. It has been designed by ImerPlast (part of Imerys) to achieve an optimum stiffness/toughness balance to meet the tough demands of applications like paint containers, such as resistance to cracking during transit. IM30 is also fully miscible with both PP and PE when further recycled. Francisco Millar, General Manager of ImerPlast UK, said: “Our ImerPlast technology and additive package allows us to match virgin levels of performance on many of our grades. The recent success of the first 100% recycled polymer paint pot, launched by Crown Paints in August and moulded by Emballator, uses our ImerPlast IM30 grade and shows we are one of the most capable and innovative recyclers in Europe.” �
www.imerys-performance-additives.com
Paint pots launched by Crown Paints in 2018 were made of 100% recycled polymer thanks to ImerPlast’s compatibilised PE and PP compound IM30
PHOTO: IMERPLAST
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