New understanding of the hierarchical distribution of isotactic polypropylene blends formed by microinjection-molded poly(ethylene terephthalate) and β-nucleating agent

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61127-61136 ◽  
Author(s):  
Zhongguo Zhao ◽  
Qi Yang ◽  
Shuting Xi ◽  
Miqiu Kong ◽  
Yajiang Huang ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Ethylene Terephthalate ◽  
Nucleating Agent ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Polypropylene Blends

Hierarchical distribution of β-crystals in microinjection molded poly(ethylene terephthalate)/β-nucleating agent-nucleated isotactic polypropylene blends.

Compatibility Effect of Reactive Copolymers on the Morphology, Rheology, and Mechanical Properties of Recycled Poly(ethylene terephthalate)/Polypropylene Blends

2014 ◽  
Vol 893 ◽  
pp. 254-258 ◽  
Author(s):  
Xin Tu Lin ◽  
Qing Rong Qian ◽  
Li Ren Xiao ◽  
Qiao Ling Huang ◽  
Li Zeng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Glycidyl Methacrylate ◽  
Ethylene Terephthalate ◽  
Charpy Impact ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Polypropylene Blends ◽  
Pp Blends ◽  
Charpy Impact Strength

Glycidyl methacrylate (GMA) grafted ethyleneoctene multi-block copolymer (OBC) in the presence of the styrene (St) monomer (OBC-g-(GMA-co-St)) was prepared and then used as a compatibilizer for recycled Poly (ethylene terephthalate)/Polypropylene (R-PET/PP) blends. The morphological, rheological and mechanical properties of the blends were investigated. The results show that the compatibilization between R-PET and PP blends is improved by the introduction of OBC-g-(GMA-co-St). The SEM results show that all R-PET/PP blends exhibit a matrix-dispersed droplet type morphology, and the addition of OBC-g-(GMA-co-St) results in a finer morphology and better adhension between the phases. In addition, the storage moduli (G'), loss moduli (G") and the Charpy impact strength of the blends increase with increasing OBC-g-(GMA-co-St) content, while the the flexural strength decreases slightly.

scholarly journals UIO-66 as Nucleating Agent on the Crystallization Behavior and Properties of Poly(Ethylene Terephthalate)

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2266
Author(s):  
Yue Yin ◽  
Yuan Wang ◽  
Linghui Meng
Keyword(s):  
Tensile Strength ◽  
Specific Surface ◽  
Crystallization Temperature ◽  
Crystallization Behavior ◽  
Ethylene Terephthalate ◽  
Crystallization Rate ◽  
Nucleating Agent ◽  
High Specific Surface Area ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

In this study, not only was the similar terephthalate structure between UIO-66 and PET utilized to improve compatibility, but the Zr4+ exposed by defects of UIO-66 was also utilized to improve the interaction between PET and UIO-66. Furthermore, PET nanocomposites with different contents of UIO-66 were also fabricated. Due to the high specific surface area and coordination of Zr4+, UIO-66 has high nucleation efficiency in the PET matrix. Compared with pure PET, the crystallization rate of PET/UIO-66 nanocomposite is significantly increased, and the crystallization temperature of PET-UIO66-1 is significantly increased from 194.3 °C to 211.6 °C. In addition, the tensile strength of nanocomposites has also been improved due to coordination.

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