ADDITIVES | MATERIALS
material, following RecyClass protocols. The study evaluated Cargill’s Incroslip C, which is a highly stable slip additive, in the simulated rHDPE, and found that the additive enhanced flow did not affect mechanical properties and was seen to improve the colour of the recyclate. Another additive, Incroslip SL, a fully saturated slip additive, helped maintain viscosity and protected the polymer during process- ing in a simulation of rPP. Overall Cargill’s slip additives were seen to protect polyolefins from further degradation during mechanical recycling.
Graphene boost The latest from Canada-based Black Swan Graphene is a Graphene Enhanced Masterbatch (GEM) with 10% graphene nanoplatelets in HDPE that the company says can be used to enhance the properties of recycled PE. GEM S27M is the fifth masterbatch that the company has launched using its GraphCore Powder (GC1004). The company says that the GEM products are available in large volumes with short lead-time. Black Swan has commercialised its patented gra-
phene products for several industries, including polymers. The company’s aim is to reduce overall costs and build supply to accelerate the adoption of graphene. Black Swan partners with masterbatch and compound producer Hubron and most recently partnered with UK-based Broadway Colours in July 2024 to help bring graphene products to market. “Through Broadway’s existing relationships with
leading bottle moulders, we’ve explored the benefits of adding graphene nanoplatelets to PET bottles made from 100% ocean prevented [recy- cled] plastic. Even at low levels, improved barrier properties were apparent – this attribute offers great potential for the packaging of perishable goods,” said Michael Edwards, COO and Director of Black Swan, in an interview with Broadway. Canadian graphene manufacturer Hydrograph Clean Power has investigated its Fractal Graphene
Flow behaviour of rHDPE with and without Incroslip C between conversion step and after three loops of mechanical recycling Source: Cargill
powder (FGA-1) in PET bottles containing a 50:50 blend of virgin PET and rPET and found improved strength at low loadings. At 0.0015 weight percent FGA-1 (15 ppm), researchers measured a 23% improvement in top-load compressive strength and an 83% decrease in water vapour transmission rate. These results indicate the potential for lightweight- ing of up to 20%. Tom Eldridge, Director of Business Development
at Hydrograph, said that there is a need for solu- tions to manage new requirements for minimum amounts of recycled content in products, which includes a desire to reduce product weight without compromising performance as a way to manage the potentially increased cost of using rPET. CJ Biomaterials has found that its amorphous
polyhydroxyalkanoate (aPHA), which is a bio-based polymer, can serve as an effective modifier for recycled PVC. The company notes that although PVC can be mechanically recycled, the rPVC may
Incorporation of aPHA into rPVC formulations can improve mechanical properties Source: CJ Biomaterials
www.plasticsrecyclingworld.com March/April 2025 | PLASTICS RECYCLING WORLD 17
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
