How is polypropylene modification implemented in bitumen?
Asked: November 21, 2024 at 6:04 am by 佐々木 篤司
- This topic has 1 reply, 2 voices, and was last updated 6 months, 3 weeks ago by Christopher Hansen.
Answers
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November 21, 2024 at 6:17 am by Christopher Hansen
Polypropylene (PP) modification involves blending PP polymers with bitumen to enhance stiffness and high-temperature performance. Due to PP’s crystalline structure and potential incompatibility, the use of compatibilizers or maleated PP may be necessary. The modification increases resistance to rutting but may require careful processing to maintain workability and prevent phase separation.
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