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Design and synthesis of dimer acid-based waterborne polyurethane as water- and oil-resistant coating for paper substrates
- Source :
- Materials & Design, Vol 211, Iss, Pp 110142-(2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- Paper derived from lignocellulose has great advantages over plastics as packaging material, nevertheless, the poor water- and oil-resistances of paper-derived products limited their application in high-end field. Herein, novel dimer acid-based waterborne polyurethanes (DWPUs) with different content of dimer acid-based polyester polyol (DG) were prepared and used as water- and oil-resistant coating for paper substrate. The effects of DG contents on water- and oil-resistances, mechanical properties and thermal stability of DWPUs coated papers were systematically investigated. When the content of DG reached up to 7 wt% (based on polyester glycol), the paper coated by DWPU exhibited 88.06% decrease in Cobb 60 value, 8.7 times increase in kit rating compared with uncoated paper. Meanwhile, DWPUs coated papers showed good mechanical properties and thermal stability. These improvements are attributed to the flexible long-alkyl chain, and six-ring structure of DWPUs as well as the continuous and homogeneous DWPU-derived membrane on the surface of paper. This study provides a new framework for the preparation of high quality, multifunctional, environmentally friendly water- and oil-resistant coatings for paper substrates.
- Subjects :
- chemistry.chemical_classification
Paper
Materials science
Mechanical Engineering
Substrate (chemistry)
Dimer acid
Water-resistant
engineering.material
Environmentally friendly
Polyester
chemistry.chemical_compound
Coating
Chemical engineering
Polyol
chemistry
Mechanics of Materials
engineering
TA401-492
General Materials Science
Thermal stability
Oil-resistant
Materials of engineering and construction. Mechanics of materials
Waterborne polyurethane
Polyurethane
Subjects
Details
- Language :
- English
- ISSN :
- 02641275
- Volume :
- 211
- Database :
- OpenAIRE
- Journal :
- Materials & Design
- Accession number :
- edsair.doi.dedup.....553e7f657c64ea3b5803101ceb3ea6b4