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The Effect of a Polymer-Stabilized Latex Cobinder on the Optical and Strength Properties of Pigment Coating Layers
- Source :
- Polymers, Volume 13, Issue 4, Polymers, Vol 13, Iss 568, p 568 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI, 2021.
-
Abstract
- Coated paper with a porous coating layer may have enhanced light-scattering ability and thus favorable optical properties. However, the increased porosity of such a coating layer is likely to decrease the strength of the coated paper, thereby adversely affecting the quality of the paper in the printing and converting processes. In this research, polymer-stabilized (PS) latex was prepared and used as a cobinder for the pigment coating of the paper. The PS latex particles were colloidally stabilized by a 3:1 mixture of starch and polyvinyl alcohol. The influence of the PS latex cobinder on the viscosity, sedimentation, and consolidation of coating colors was investigated. In addition, the effect of the cobinder on the properties of coating layers, namely, their porosity and surface, optical, and tensile properties, was examined. The results revealed that the PS latex cobinder formed microstructures in the coating colors and affected their viscosity. The addition of PS latex also led to enhanced interactions between coating color components, which affected the consolidation of the coating color, resulting in the formation of dried coating layers with greater porosity and improved optical properties (i.e., higher brightness and opacity) relative to coatings without the PS latex cobinder. Furthermore, the addition of PS latex improved the tensile strength of the coating layers, which was attributable to the small size and the polymeric protective shell of the cobinder particles. Thus, these results show that this PS latex cobinder has the potential to be used for the production of high-quality coated paper products.
- Subjects :
- Materials science
Polymers and Plastics
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
Polyvinyl alcohol
Article
lcsh:QD241-441
cobinder
chemistry.chemical_compound
lcsh:Organic chemistry
Coating
Ultimate tensile strength
polymer-stabilized latex
Composite material
Porosity
chemistry.chemical_classification
Coated paper
coating layer
General Chemistry
Polymer
coating color
021001 nanoscience & nanotechnology
Microstructure
0104 chemical sciences
chemistry
pigment coating
engineering
0210 nano-technology
Layer (electronics)
Subjects
Details
- Language :
- English
- ISSN :
- 20734360
- Volume :
- 13
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Polymers
- Accession number :
- edsair.doi.dedup.....821ad5350047ef0afff4b8f923199094