Effect of nucleation agents on the crystallization of poly(3- hydroxybutyrate-co-4-hydroxybutyrate) (P3/4HB)

Liang Wang, Xiaojuan Wang, Wenfu Zhu, Zhifei Chen, Jueyu Pan, Kaitian Xu

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30 Scopus citations

Abstract

Boron nitride (BN), talc, hydroxyapatite (HA), and zinc stearate (ZnSt) were investigated as nucleation agents (NA) for nonfossil-based poly(3-hydroxybutyrate-co- 4-hydroxybutyrate) (P3/4HB) plastics. Nonisothermal crystallization behaviors of the P3/4HB/NA blends were examined by DSC. It revealed that BN is the most efficient nucleation agent to promote the crystallization rate, however, but not the crystallization degree. The lasting crystallization of P3/4HB was also removed. The nucleation effect was strengthened with increase of BN content up to 1% and then slackened deeply when further BN was added. Isothermal crystallization analysis revealed that the addition of nucleation agent BN does not alter the crystal growth mode of P3/4HB, with maintaining the Avrami parameter n value around 2.40. Talc did enhance the crystallization of P3/4HB with however milder crystal growth rate. HA and ZnSt did not promote, but depressed the crystallization of P3/4HB plastics.

Original languageEnglish (US)
Pages (from-to)1116-1123
Number of pages8
JournalJournal of Applied Polymer Science
Volume116
Issue number2
DOIs
StatePublished - Apr 15 2010

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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