Study on the effect of dibenzylidene sorbitol as a nucleating agent on the crystallization and morphology of poly(ethylene terephthalate)

1988 ◽  
Vol 36 (2) ◽  
pp. 387-402 ◽  
Author(s):  
Debaprasad Mitra ◽  
Ashok Misra
Keyword(s):  
Ethylene Terephthalate ◽  
Nucleating Agent ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

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.

scholarly journals The effect of attapulgite on crystallization behavior of Poly(ethylene terephthalate) (PET)/Attapulgite (AT) nano composites

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Fan Xufen ◽  
Chen Dajun
Keyword(s):  
Ethylene Terephthalate ◽  
In Situ Polymerization ◽  
Nucleating Agent ◽  
Avrami Equation ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Transmission Electron ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

AbstractPoly (ethylene terephthalate) (PET)/Attapulgite (AT) nanocomposites were prepared via in-situ polymerization. According to the observation of transmission electron microscopy (TEM), attapulgite is well dispersed in the PET matrix in a nanometer scale. The influence of attapulgite content on the nonisothermal crystallization kinetics was studied using a classical Avrami equation with Jeziorny method. The crystalline structures of the pure PET and PET/AT nanocomposites with different amount of AT (0.2%, 0.5%, 1%, 2%) were characterized by differential scanning calorimetry (DSC) and X-ray diffraction (XRD) methods. It was found that the crystallization temperature for PET/AT nanocomposites with 0.2% and 0.5% content of AT were higher than pure PET and the rate of crystallization of all PET/AT nanocomposite samples increased significantly which indicated that attapulgite could be used as an effective nucleating agent in PET. However, with the addition of AT, smaller crystalline size, more crystalline defects and lower degree of crystallization was demonstrated.

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.

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