Significant improvement of the low-temperature toughness of PVC/ASA/NBR ternary blends through the concept of mismatched thermal expansion coefficient
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Xueqiang Zhang
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.
Acknowledgment
This work was supported by the Priority Academic Program Development of Jiangsu Higher Education Institution (PAPD).
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©2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material properties
- Characterization and corrosion resistance of ultra-high molecular weight polyethylene composite coatings reinforced with tungsten carbide particles in hydrochloric acid medium
- Tribological properties of PAANa/UHMWPE composite materials in seawater lubrication
- Preparation and assembly
- Acrylic acid-chitosan blend hydrogel: a novel polymer adsorbent for adsorption of lead(II) and copper(II) ions from wastewater
- Efficient preparation of PDMS-based conductive composites using self-designed automatic equipment and an application example
- Significant improvement of the low-temperature toughness of PVC/ASA/NBR ternary blends through the concept of mismatched thermal expansion coefficient
- Chitosan surface modified PLGA nanoparticles loaded with brigatinib for the treatment of non-small cell lung cancer
- Fabrication of polyimide films with imaging quality using a spin-coating method for potential optical applications
- Engineering and processing
- An experimental study on the micro- and nanocellular foaming of polystyrene/poly(methyl methacrylate) blend composites
- Barrel heating with inductive coils in an injection molding machine
- Influence of temperature dependence on the structural characteristics of polyoxymethylene/poly(lactic acid) blends by injection molding
- Annual reviewer acknowledgement
- Reviewer acknowledgement Journal of Polymer Engineering volume 39 (2019)
Artikel in diesem Heft
- Frontmatter
- Material properties
- Characterization and corrosion resistance of ultra-high molecular weight polyethylene composite coatings reinforced with tungsten carbide particles in hydrochloric acid medium
- Tribological properties of PAANa/UHMWPE composite materials in seawater lubrication
- Preparation and assembly
- Acrylic acid-chitosan blend hydrogel: a novel polymer adsorbent for adsorption of lead(II) and copper(II) ions from wastewater
- Efficient preparation of PDMS-based conductive composites using self-designed automatic equipment and an application example
- Significant improvement of the low-temperature toughness of PVC/ASA/NBR ternary blends through the concept of mismatched thermal expansion coefficient
- Chitosan surface modified PLGA nanoparticles loaded with brigatinib for the treatment of non-small cell lung cancer
- Fabrication of polyimide films with imaging quality using a spin-coating method for potential optical applications
- Engineering and processing
- An experimental study on the micro- and nanocellular foaming of polystyrene/poly(methyl methacrylate) blend composites
- Barrel heating with inductive coils in an injection molding machine
- Influence of temperature dependence on the structural characteristics of polyoxymethylene/poly(lactic acid) blends by injection molding
- Annual reviewer acknowledgement
- Reviewer acknowledgement Journal of Polymer Engineering volume 39 (2019)
