Relationship between strain rate, temperature, and impact failure mechanism for poly(vinyl chloride) and poly(ethylene terephthalate)

Janet L. Green, Charles A. Petty, Peter P. Gillis, Eric A. Grulke

    Research output: Contribution to journalArticle

    • 4 Citations

    Abstract

    One approach to the purification of recycled thermoplastic mixtures is selective grinding to induce differences in sizes and shapes between polymers with different compositions. These mixtures can then be separated using one of several technologies including conventional sieving or hydrocyclones. Recycled poly(vinyl chloride) and polyethylene terephthalate) often are cross-contaminated with each other since they have overlapping density ranges and are very difficult to separate using methods such as flotation. Selective grinding followed by physical separation might be a preferred method for separating such a polymer pair if processing "windows" for inducing differences in failure mechanisms can be found. There is a temperature range over which PET fails in a ductile mode while PVC fails in a brittle mode for impact grinding experiments. This range is not accurately predicted by failure mechanism and β-transition temperature diagrams.

    Original languageEnglish (US)
    Pages (from-to)194-203
    Number of pages10
    JournalPolymer Engineering and Science
    Volume38
    Issue number1
    StatePublished - 1998

    Profile

    Acetanilides
    Agglutination Tests
    Polyethylene terephthalates
    Polymers
    Temperature
    Acyclic Acids
    Common Bile Duct Diseases
    Conjunctival Diseases
    African horse sickness virus
    Accessory Nerve
    Levodopa
    Ovulation
    Flotation
    Thermoplastics
    Purification
    Polyvinyl chlorides
    Superconducting transition temperature
    Strain rate
    Chemical analysis
    Experiments

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Materials Chemistry
    • Polymers and Plastics

    Cite this

    Relationship between strain rate, temperature, and impact failure mechanism for poly(vinyl chloride) and poly(ethylene terephthalate). / Green, Janet L.; Petty, Charles A.; Gillis, Peter P.; Grulke, Eric A.

    In: Polymer Engineering and Science, Vol. 38, No. 1, 1998, p. 194-203.

    Research output: Contribution to journalArticle

    Green, Janet L.; Petty, Charles A.; Gillis, Peter P.; Grulke, Eric A. / Relationship between strain rate, temperature, and impact failure mechanism for poly(vinyl chloride) and poly(ethylene terephthalate).

    In: Polymer Engineering and Science, Vol. 38, No. 1, 1998, p. 194-203.

    Research output: Contribution to journalArticle

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