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- Title
New Approach to Optimize Mechanical Properties of the Immiscible Polypropylene/Poly (Ethylene Terephthalate) Blend: Effect of Shish-Kebab and Core-Shell Structure.
- Authors
Wang, Yingxiong; Mi, Dashan; Delva, Laurens; Cardon, Ludwig; Zhang, Jie; Ragaert, Kim
- Abstract
Improving the mechanical properties of immiscible PP/PET blend is of practical significance especially in the recycling process of multi-layered plastic solid waste. In this work, a multi-flow vibration injection molding technology (MFVIM) was hired to convert the crystalline morphology of the PP matrix from spherulite into shish-kebab. POE–g–MA was added as compatibilizer, and results showed that the compatibilization effect consisted in the formation of a core-shell structure by dispersing the POE–g–MA into the PP matrix to encapsulate the PET. It was found that the joint action of shish-kebab crystals and spherical core-shell structure enabled excellent mechanical performance with a balance of strength and toughness for samples containing 10 wt % PET and 4 wt % POE–g–MA, of which the yield strength and impact strengths were 50.87 MPa and 13.71 kJ/m2, respectively. This work demonstrates a new approach to optimize mechanical properties of immiscible PP/PET blends, which is very meaningful for the effective recycling of challenging plastic wastes.
- Subjects
SOLID waste; WASTE recycling; CRYSTAL morphology; SPHERULITES (Polymers); STRENGTH of materials; MECHANICAL behavior of materials; PLASTIC scrap
- Publication
Polymers (20734360), 2018, Vol 10, Issue 10, p1094
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym10101094