Effects of coupling agents on the rheological behavior and physical/mechanical properties of filled nylon 6

Hong‐Lie ‐L Luo, Chang Dae Han, Jovan Mijović

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An investigation was made on the rheological behavior and physical/mechanical properties of highly filled nylon 6 composites with and without a coupling agent. As fillers, calcium carbonate and calcium silicate were used, and, as coupling agent, two silanes (Union Carbide, A1100 and Y9187) and two titanates (Kenrich Petrochemicals, KR‐44 and KR‐138) were used. It was found that all the coupling agents used increased the viscosities of the nylon/CaCO3 system. However, the effect of the coupling agents on the viscosity of the nylon/CaSiO3 system seems quite complex; namely, the titanate KR‐44 decreased the melt viscosity of the nylon/CaSiO3 composite, whereas the titanate KR‐138S and the silane Y9187 increased it. In general, the effectiveness of the coupling agents in improving the physical/mechanical properties of the nylon/CaCO3 and nylon/CaSiO3 composites was marginal. A considerable decrease in glass transition was observed upon exposure of all samples to water, regardless of the type of filler and coupling agent.

Original languageEnglish (US)
Pages (from-to)3387-3398
Number of pages12
JournalJournal of Applied Polymer Science
Issue number11
StatePublished - Nov 1983


ASJC Scopus subject areas

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

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