MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS

XIAO Fengfei; SHI Lianghe; XU Mao

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MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS

Papers | Updated：2021-06-21

- MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS
- Vol. 9, Issue 1, Pages: 55-64(1991)
- Affiliations：
  
  1. Polymer Physics Laboratory, Institute of Chemistry, Academia Sinica,Beijing,100080
  2.   Institute of Chemistry
  3.   Academia Sinica
  4.   Academia Sinica Beijing 100080
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 March 1991
- Accepted：
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[1]肖凤飞,施良和,徐懋.MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS[J].Chinese Journal of Polymer Science,1991,{4}(01):55-64.

XIAO Fengfei, SHI Lianghe, XU Mao. MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS[J]. 1991, 9(1): 55-64.
[1]肖凤飞,施良和,徐懋.MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS[J].Chinese Journal of Polymer Science,1991,{4}(01):55-64. DOI：

XIAO Fengfei, SHI Lianghe, XU Mao. MODULUS-COMPOSITION DEPENDENCE FOR BLENDS OF PVC WITH SEGMENTED POLYURETHANES OF DIFFERENT SOFT SEGMENTS[J]. 1991, 9(1): 55-64. DOI：

摘要

<正> The dynamic mechanical modulus at 25℃for blends of segmented polyurethanes with PVC was studied by using suitable mechanics models of multi-component systems. The analysis indicates that the blend morphology was mainly determined by soft segment structure of polyurethanes. The PPO-PU/PVC blends show typical two-phase morphology and their modulus-composition relations may be described by Halpin-Tsai model for domain-matrix two-phase systems.While the PCL-PU / PVC

PTMA-PU/PVC and PTMO-PU/PVC blends fit the Kerner’s packed grain composite model. These results may imply that the modulus-composition relationship is sensitive to the interactions between the components and the mixture morphology of the blends.

Abstract

The dynamic mechanical modulus at 25℃ for blends of segmented polyurethanes with PVC was studied by using suitable mechanics models of multi-component systems. The analysis indicates that the blend morphology was mainly determined by soft segment structure of polyurethanes. The PPO-PU/PVC blends show typical two-phase morphology and their modulus-composition relations may be described by Halpin-Tsai model for domain-matrix two-phase systems.While the PCL-PU / PVC

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