Moisture resistance coating of packaging paper from biobased silylated soybean oil

Chetan Tambe, Daniel Graiver, Ramani Narayan

Research output: Contribution to journalArticle

  • 2 Citations

Abstract

The moisture resistance of Kraft paper was greatly improved when it was coated with silylated soybean oil that was cured via silanol condensation. This moisture barrier coating was prepared from LowSat® Soybean oil that was grafted with vinyltrimethoxysilane (VTMS) using a relatively simple process based on the “Ene reaction”. The viscosity of the resulting oil was unaffected by the silylation reaction and remained low (32 cPs). Thus, the paper coating process required no solvent, additional diluent or the need to emulsify the oil which provided a convenient one-component cure system. Dibutyltin dilaurate (DBTDL) was found to be an effective condensation catalyst and under optimal conditions complete cure was achieved in a short period of time. The cure rate was a function of the catalyst concentration, available water and the temperature. Initially, Kraft papers were coated with the silylated soybean oil in the lab and this process was followed by a pilot scale-up using a commercial gravure roll coater. Cobb values and water vapor transmission rate indicated the cured coating provided a good barrier coating. Scanning electron microscopy (SEM) images of the coated paper confirmed a uniform coating with good adhesion of the coating material to the paper.

LanguageEnglish (US)
Pages270-278
Number of pages9
JournalProgress in Organic Coatings
Volume101
DOIs
StatePublished - Dec 1 2016

Profile

Soybean oil
Soybean Oil
Packaging
Moisture
Coatings
Kraft paper
Condensation
Oils
Catalysts
Coating techniques
Steam
Water vapor
Adhesion
Viscosity
Scanning electron microscopy
Water
Temperature

Keywords

  • Cobb values
  • Kraft paper
  • Moisture resistance
  • Paper packaging
  • Silylated soybean oil

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Surfaces, Coatings and Films
  • Organic Chemistry
  • Materials Chemistry

Cite this

Moisture resistance coating of packaging paper from biobased silylated soybean oil. / Tambe, Chetan; Graiver, Daniel; Narayan, Ramani.

In: Progress in Organic Coatings, Vol. 101, 01.12.2016, p. 270-278.

Research output: Contribution to journalArticle

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