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Significant improvement of the low-temperature toughness of PVC/ASA/NBR ternary blends through the concept of mismatched thermal expansion coefficient

  • Xueqiang Zhang , Zepeng Mao and Jun Zhang EMAIL logo
Published/Copyright: September 24, 2019
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 39 Issue 10

Abstract

In this study, poly(vinyl chloride) (PVC)/acrylonitrile-styrene-acrylic terpolymer (ASA)/acrylonitrile-butadiene rubber (NBR) ternary blends were designed based on the concept of mismatched thermal expansion coefficient between different components, resulting in significant improvement of the low-temperature toughness. The large difference in thermal expansion coefficients strengthened the interfacial tensile force (i.e. negative pressure) on NBR phase and reduced its glass transition temperature (Tg) by nearly 20°C, which was attributed to the improvement in the free volume of NBR. As a result, the low-temperature toughness of PVC/ASA/NBR ternary blends improved significantly. With the incorporation of 12.5 phr NBR in the PVC/ASA (100/15, w/w) matrix, the blends could achieve the highest impact strength of 76.2 kJ/m2 at 0°C and 10.7 kJ/m2 at −30°C. Simultaneously, the brittle-ductile transition (BDT) of the toughness shifted to the high NBR content region with the decrease of temperature. However, the improvement in the toughness of PVC/ASA/NBR ternary blends was at the expense of a decrease in rigidity.

Keywords: blends; core-shell structure; low-temperature toughness; poly(vinyl chloride); thermal expansion coefficient

Acknowledgment

This work was supported by the Priority Academic Program Development of Jiangsu Higher Education Institution (PAPD).

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Received: 2019-06-12
Accepted: 2019-08-30
Published Online: 2019-09-24
Published in Print: 2019-11-26

©2019 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Material properties
  3. Characterization and corrosion resistance of ultra-high molecular weight polyethylene composite coatings reinforced with tungsten carbide particles in hydrochloric acid medium
  4. Tribological properties of PAANa/UHMWPE composite materials in seawater lubrication
  5. Preparation and assembly
  6. Acrylic acid-chitosan blend hydrogel: a novel polymer adsorbent for adsorption of lead(II) and copper(II) ions from wastewater
  7. Efficient preparation of PDMS-based conductive composites using self-designed automatic equipment and an application example
  8. Significant improvement of the low-temperature toughness of PVC/ASA/NBR ternary blends through the concept of mismatched thermal expansion coefficient
  9. Chitosan surface modified PLGA nanoparticles loaded with brigatinib for the treatment of non-small cell lung cancer
  10. Fabrication of polyimide films with imaging quality using a spin-coating method for potential optical applications
  11. Engineering and processing
  12. An experimental study on the micro- and nanocellular foaming of polystyrene/poly(methyl methacrylate) blend composites
  13. Barrel heating with inductive coils in an injection molding machine
  14. Influence of temperature dependence on the structural characteristics of polyoxymethylene/poly(lactic acid) blends by injection molding
  15. Annual reviewer acknowledgement
  16. Reviewer acknowledgement Journal of Polymer Engineering volume 39 (2019)
https://doi.org/10.1515/polyeng-2019-0192
Keywords for this article
blends; core-shell structure; low-temperature toughness; poly(vinyl chloride); thermal expansion coefficient

Articles in the same Issue

  1. Frontmatter
  2. Material properties
  3. Characterization and corrosion resistance of ultra-high molecular weight polyethylene composite coatings reinforced with tungsten carbide particles in hydrochloric acid medium
  4. Tribological properties of PAANa/UHMWPE composite materials in seawater lubrication
  5. Preparation and assembly
  6. Acrylic acid-chitosan blend hydrogel: a novel polymer adsorbent for adsorption of lead(II) and copper(II) ions from wastewater
  7. Efficient preparation of PDMS-based conductive composites using self-designed automatic equipment and an application example
  8. Significant improvement of the low-temperature toughness of PVC/ASA/NBR ternary blends through the concept of mismatched thermal expansion coefficient
  9. Chitosan surface modified PLGA nanoparticles loaded with brigatinib for the treatment of non-small cell lung cancer
  10. Fabrication of polyimide films with imaging quality using a spin-coating method for potential optical applications
  11. Engineering and processing
  12. An experimental study on the micro- and nanocellular foaming of polystyrene/poly(methyl methacrylate) blend composites
  13. Barrel heating with inductive coils in an injection molding machine
  14. Influence of temperature dependence on the structural characteristics of polyoxymethylene/poly(lactic acid) blends by injection molding
  15. Annual reviewer acknowledgement
  16. Reviewer acknowledgement Journal of Polymer Engineering volume 39 (2019)
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