Superior Tensile Extensibility of PETG/PC Amorphous Blends as Induced via Uniaxial Stretching℃

Li Chen; Xin-lan Zhang; Huai-yuan Li; Bo Li; Ke Wang; Qin Zhang; Qiang Fu

doi:10.1007/s10118-010-1006-6

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Superior Tensile Extensibility of PETG/PC Amorphous Blends as Induced via Uniaxial Stretching℃

Paper | Updated：2021-06-21

- Superior Tensile Extensibility of PETG/PC Amorphous Blends as Induced via Uniaxial Stretching℃
- SUPERIOR TENSILE EXTENSIBILITY OF PETG/PC AMORPHOUS BLENDS INDUCED VIA UNIAXIAL STRETCHING
- Chinese Journal of Polymer Science 2011年29卷第1期页码：125-132
- Affiliations：
  
  a.Department of Polymer Science & Materials, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
  b.College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  **Qiang Fu (傅强), E-mail: qiangfu@scu.edu.cn
- Funds：
  
  National Natural Science Foundation of China(50533050;20874064;50873063)
- DOI：10.1007/s10118-010-1006-6
  中图分类号：
- 收稿：2010-01-27，
  
  修回：2010-03-05，
  
  录用：2010-03-19，
  
  纸质出版：2011
- Accepted：
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Li Chen, Xin-lan Zhang, Huai-yuan Li, 等. Superior Tensile Extensibility of PETG/PC Amorphous Blends as Induced via Uniaxial Stretching℃[J]. Chinese Journal of Polymer Science, 2011,29(1):125-132.

Li Chen, Xin-lan Zhang, Huai-yuan Li, et al. SUPERIOR TENSILE EXTENSIBILITY OF PETG/PC AMORPHOUS BLENDS INDUCED VIA UNIAXIAL STRETCHING[J]. Chinese Journal of Polymer Science, 2011, 29(1): 125-132.
Li Chen, Xin-lan Zhang, Huai-yuan Li, 等. Superior Tensile Extensibility of PETG/PC Amorphous Blends as Induced via Uniaxial Stretching℃[J]. Chinese Journal of Polymer Science, 2011,29(1):125-132. DOI： 10.1007/s10118-010-1006-6.

Li Chen, Xin-lan Zhang, Huai-yuan Li, et al. SUPERIOR TENSILE EXTENSIBILITY OF PETG/PC AMORPHOUS BLENDS INDUCED VIA UNIAXIAL STRETCHING[J]. Chinese Journal of Polymer Science, 2011, 29(1): 125-132. DOI： 10.1007/s10118-010-1006-6.

摘要

Abstract

A simultaneous increase of both stiffness and extensibility of poly(ethylene glycol-

-cyclohexane-1

4-dimethanol terephthalate) (PETG)/polycarbonate (PC) blends prepared through the slit die extrusion-uniaxial cold stretching process was observed. The stretched sheets have a unique mechanical character that an increased tensile modulus is accompanied by an increased extensibility with increasing the draw ratio. Especially

a sharp increasing of the extensibility is observed for PETG/PC (70/30 wt%) blends at draw ratios between 8.2 and 20.0

where a nine times increase of extensibility is achieved. The mechanism of stretching-induced superior extensibility is investigated

via

micrograph observation

rheometry and calorimetric analysis. The observed superior extensibility could be tentatively explained by the bridging effect of the PC microfibrils on the crack development during tensile failure.

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