scholarly journals Preparation and Properties of Poly(ethylene glycol-co-cyclohexane-1,4-dimethanol terephthalate)/Polyglycolic Acid (PETG/PGA) Blends

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 452
Author(s):  
Kai Wang ◽  
Jianing Shen ◽  
Zhao Ma ◽  
Yipeng Zhang ◽  
Nai Xu ◽  
...  
Keyword(s):  
Yield Strength ◽  
Rheological Properties ◽  
Tensile Ductility ◽  
Tensile Modulus ◽  
Polyglycolic Acid ◽  
Tensile Yield Strength ◽  
Poly Ethylene Glycol ◽  
Tensile Performance ◽  
Interfacial Compatibility ◽  
Poly Ethylene

Polyglycolic acid (PGA) is used as a reinforcing component to enhance the mechanical properties of poly(ethylene glycol-co-cyclohexane-1,4-dimethanol terephthalate) (PETG). The tensile performance, micromorphology, crystallinity, heat resistance, and melt mass flow rates (MFRs) of PETG/PGA blends with varying PGA contents were studied. Both the tensile yield strength and tensile modulus of the PETG/PGA blends increased gradually with an increase in the PGA content from 0 to 35 wt%. The tensile yield strength of the PETG/PGA (65/35) blend increased by 8.7% (44.38 to 48.24 MPa), and the tensile modulus increased by 40.2% (1076 to 1509 MPa). However, its tensile ductility decreased drastically, owing to the poor interfacial compatibility of PETG/PGA and the oversized PGA domains. A multiple epoxy chain extender (ADR) was introduced into the PETG/PGA (65/35) blend to improve its interfacial compatibility and rheological properties. The tensile performance, micromorphology, rheological properties, crystallinity, and heat resistance of PETG/PGA (65/35) blends with varying ADR contents were studied. The strong chain extension effect of ADR along with its reactive compatibilization improved the rheological properties and tensile ductility. By carefully controlling the ADR concentration, the performance of PETG/PGA blends can be regulated for different applications.

Rheological properties and phase behavior of a hydroxypropyl cellulose-poly(ethylene glycol) system

2010 ◽  
Vol 52 (2) ◽  
pp. 144-149 ◽  
Author(s):  
M. Yu. Tolstykh ◽  
V. V. Makarova ◽  
A. V. Semakov ◽  
V. G. Kulichikhin
Keyword(s):  
Ethylene Glycol ◽  
Phase Behavior ◽  
Rheological Properties ◽  
Hydroxypropyl Cellulose ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Effects of Graphene Nanopletelets on Poly(Lactic Acid)/Poly(Ethylene Glycol) Polymer Nanocomposites

2014 ◽  
Vol 1024 ◽  
pp. 136-139 ◽  
Author(s):  
Buong Woei Chieng ◽  
Ibrahim Nor Azowa ◽  
Wan Yunus Wan Md Zin ◽  
Mohd Zobir Hussein
Keyword(s):  
Lactic Acid ◽  
Ethylene Glycol ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Poly Lactic Acid ◽  
Poly Ethylene Glycol ◽  
Elongation At Break ◽  
Sem Image ◽  
Blending Method ◽  
Poly Ethylene

Graphene nanoplatelets (xGnP) were investigated as a novel nanoreinforcement filler in poly (lactic acid)(PLA)/poly (ethylene glycol)(PEG) blends by melt blending method. The prepared nanocomposites exhibited a significant improvement in tensile properties at a low xGnP loading. The tensile properties demonstrated the addition of 0.3wt% of xGnP led to an increase of up to 32.7%, 69.5% and 21.9% in tensile strength, tensile modulus and elongation at break of the nanocomposites respectively, compared to PLA/PEG blend. The nanocomposites also shows enhanced thermal stability compared with PLA/PEG blend in thermogravimetry analysis (TGA). Scanning electron microscopy (SEM) image of PLA/PEG/0.3wt% xGnP displays good uniformity and more homogenous morphology.

Reference Tables

2004 ◽  
pp. 273-277
Keyword(s):  
Yield Strength ◽  
Modulus Of Elasticity ◽  
Room Temperature ◽  
Tensile Modulus ◽  
Tensile Yield Strength

Abstract This chapter contains tables listing room-temperature tensile yield strength comparisons of metals and plastics and room-temperature tensile modulus of elasticity comparisons of various materials.

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