Compatibilizers for Recycled Polymer Alloys & Blends
Recycled resins are sometimes not perfectly sorted and contains a variety of plastics materials. It is common that the sorting process leaves a few percent of one recycled resin into the main recycled stream. These materials are rarely compatible and need the use of a compatibilizer and a compounding step to obtain good properties. SKFP can bring solutions to the following recycled blends.
rPET/Polyolefin compatibization with Lotader® AX8840:
- Reactivity with PET thanks to GMA functions (Lotader® AX) and compatibility with polyolefin
- Good visual appearance
- Intrinsic Viscosity improvement
PA and/or EVOH / Polyolefin blends compatibilization:
- Reactivity with PA and EVOH thanks to MAH functions (Orevac® & Lotader®)
- Allows multilayer packaging recycling
Other blends compatibilization: PC/ABS, PC/PBT, PET/PE, PET/PP, PE/VOH
| Starting | recommendations for the most common plastic blends |
| PET/PE (*) | 1/5 of PE Lotader AX8840 / AX8900 |
| PA/PE (*) | 1/5 of minor component* Lotader 3210 / 3410 / 4210 |
| PA/PP (*) | 1/5 of minor component* Orevac CA100 |
| PLA/PP (*) | 1/5 of minor component* Orevac CA100 |
| PLA/PE (*) | 5 – 10 % Lotader AX8900 |
| PBT/PA (*) | 1/5 of minor component Lotader AX8900 / AX8700 |
| PBT/PP (*) | 1/5 of minor component Lotader AX8900 / AX8700 |
| PC/ABS alloys | 5% Lotryl T 29MA03T or Lotader AX8900 |
| PC/PBT alloys | 5 – 10 % Lotader AX8900 +Lotryl T 29MA03 |
(*) Example for a blend PA/PE 70/30 -> use 6% Lotader 3210 (1/5 of minor component loading, PE)