Effect of the Trifunctional Chain Extender on Intrinsic Viscosity, Crystallization Behavior, and Mechanical Properties of Poly(Ethylene Terephthalate)

In order to overcome low crystallization rate of PET, HPN-68L was selected to replace the special nucleate agent of PET to improve PET crystallization for its carboxylate anion structure which usually showed high induced nucleation ability for PET.

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Tensile and Impact Properties of Recycled Poly(Ethylene Terephthalate) and Polycarbonate Composites Reinforced with Silane Treated Hollow Glass Microspheres

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.772.33 ◽

2018 ◽

Vol 772 ◽

pp. 33-37

Author(s):

Nattakarn Hongsriphan ◽

Pajaera Patanathabutr ◽

Kanyakarn Lappokachai

Keyword(s):

Mechanical Properties ◽

Interfacial Adhesion ◽

Ethylene Terephthalate ◽

Chain Extender ◽

Glass Microspheres ◽

Hollow Glass Microspheres ◽

Hollow Glass ◽

Poly Ethylene Terephthalate ◽

Fixed Composition ◽

Poly Ethylene

Recycled poly (ethylene terephthalate) or R-PET is conventionally melt blended with polycarbonate with the presence of chain extender in order to produce polymer blend that provides good mechanical properties and cost effectiveness. This research was carried out to improve properties of such a blend by compounding them with silane treated hollow glass microspheres (HGMs), which mixing procedure was emphasized how it could affect mechanical properties. R-PET/PC/HGM composites of a fixed composition were melt compounded with three different mixing procedures. It was found that the compounding HGMs with PC and then R-PET obtained the most rigidity specimens than the all-in-one compounding or the compounding HGMs with R-PET and then PC. Silane treated HGMs were well distributed in the polymer matrix presenting good interfacial adhesion. However, the notched impact strength of all composites were inspected to be in the same range.

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Crystallization behavior and mechanical properties of an electrospun ethanol-mediated poly(ethylene terephthalate) fibrous membrane

Journal of Applied Polymer Science ◽

10.1002/app.42341 ◽

2015 ◽

Vol 132 (32) ◽

pp. n/a-n/a

Author(s):

Li-Na Wang ◽

Yan-Wei Wang ◽

Wen-Tao Liu ◽

Xue-Lian Xia ◽

Su-Qin He ◽

...

Keyword(s):

Mechanical Properties ◽

Crystallization Behavior ◽

Ethylene Terephthalate ◽

Fibrous Membrane ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene

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Rheological behavior, mechanical properties, and nonisothermal crystallization behavior of poly(ethylene terephthalate)/modified carbon fiber composites

High Performance Polymers ◽

10.1177/0954008318805803 ◽

2018 ◽

Vol 31 (6) ◽

pp. 733-740 ◽

Cited By ~ 1

Author(s):

GuoLiang Lin ◽

DongWei Li ◽

MinYi Liu ◽

XiaoYi Zhang ◽

YuYing Zheng

Keyword(s):

Mechanical Properties ◽

Carbon Fiber ◽

Rheological Behavior ◽

Crystallization Behavior ◽

Ethylene Terephthalate ◽

Solid Phase ◽

Carbon Fiber Composites ◽

Nonisothermal Crystallization ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene

Maleic anhydride-grafted carbon fiber (CF- g-MAH) was prepared by a solid-phase grafting method. The rheological behavior, morphology, mechanical properties, and nonisothermal crystallization behavior of pure poly(ethylene terephthalate) (PET) and PET/CF and PET/CF- g-MAH composites were investigated. The rheological analyses and mechanical tests show that the addition of CF or CF- g-MAH increased the complex viscosity and mechanical properties of PET. The morphology observations confirm that the introduction of the MAH group on the surfaces of the CF enhanced the interactions between the CF and PET, resulting in the fine dispersion of CF- g-MAH in the PET matrix. In addition, the analyses of the nonisothermal crystallization behavior of pure PET and the PET/CF and PET/CF- g-MAH composites show that CF or CF- g-MAH can act as a heterogeneous nucleating agent in PET and accelerate its crystallization. Compared to CF, CF- g-MAH is a more effective nucleator for PET.

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