A scanning electron microscope study of the surface structure of mineral pigments, latices and thickeners used for paper coating on non-absorbent substrates

Kugge, Christian; Craig, Vincent S. J.; Daicic, John

doi:10.1016/j.colsurfa.2004.02.029

Cited by 28 publications

(16 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The size and number of pores can determine the degree of light scattering, thus affecting the glossiness of the paper surface. The coating structure has important impact on the optical properties [81], so the network structure of polysaccharides can improve the optical properties of the paper surface. In paper coating, polysaccharides can change the rheological properties of pigment coating, increase its viscosity, and improve the uniformity and pore structure of the coating layers [23,82].…”

Section: Pigment Coatingmentioning

confidence: 99%

The Application of Polysaccharides and Their Derivatives in Pigment, Barrier, and Functional Paper Coatings

Wang

Jin

et al. 2020

Polymers

View full text Add to dashboard Cite

As one of the most abundant natural polymers in nature, polysaccharides have the potential to replace petroleum-based polymers that are difficult to degrade in paper coatings. Polysaccharide molecules have a large number of hydroxyl groups that can bind strongly with paper fibers through hydrogen bonds. Chemical modification can also effectively improve the mechanical, barrier, and hydrophobic properties of polysaccharide-based coating layers and thus can further improve the related properties of coated paper. Polysaccharides can also give paper additional functional properties by dispersing and adhering functional fillers, e.g., conductive particles, catalytic particles or antimicrobial chemicals, onto paper surface. Based on these, this paper reviews the application of natural polysaccharides, such as cellulose, hemicellulose, starch, chitosan, and sodium alginate, and their derivatives in paper coatings. This paper analyzes the improvements and influences of chemical structures and properties of polysaccharides on the mechanical, barrier, and hydrophobic properties of coated paper. This paper also summarizes the researches where polysaccharides are used as the adhesives to adhere inorganic or functional fillers onto paper surface to endow paper with great surface properties or special functions such as conductivity, catalytic, antibiotic, and fluorescence.

show abstract

Section: Pigment Coatingmentioning

confidence: 99%

The Application of Polysaccharides and Their Derivatives in Pigment, Barrier, and Functional Paper Coatings

Wang

Jin

et al. 2020

Polymers

View full text Add to dashboard Cite

show abstract

“…In its normal state, water represents 5% of the material weight. According to Kugge et al (Kugge et al , 2004), below 4.9 Torr (around 653 Pa) water vapour pressure (environmental mode), the paper sample is partially dried. Using 1 Torr (133 Pa) water vapour pressure therefore makes it difficult to avoid partial dehydration of the sample.…”

Section: Discussionmentioning

confidence: 99%

Determination of paper filler Z‐distribution by low‐vacuum SEM and EDX

Roux

Feugeas

Bach

et al. 2007

Journal of Microscopy

View full text Add to dashboard Cite

SummaryPaper, mainly constituted of cellulose fibres, often contains mineral fillers. These fillers increase some of the properties of the paper (whiteness, printability, etc.) and are cheaper than the cellulose fibres. Nevertheless, the fillers reduce the mechanical properties of the sheet. Paper presents an anisotropy corresponding to three main directions. This anisotropy characterises the sheet mechanical properties, structure and filler distribution. Analyses of the cross section of the paper sheet with a low-vacuum scanning electron microscope with an energy dispersive spectrometer analysis module can show this distribution. The procedure developed consists in analysing discrete profiles to build the mean profile known as filler Z-distribution for each of the fillers. To develop this method, problems such as determination of the surface points, the number of points to analyse to define a cross section profile and the time required for the test, have been solved. Paper is sensitive to electron irradiation. In order to avoid deterioration of the material and to obtain satisfactory results, the time span for analyses is restricted to 40 s with a 12 kV electron beam accelerating voltage. Monte Carlo simulations are used to determine the diffusion cloud size and thus to determine the number of points that constitute a profile. The samples are gold sputtered and, with the aid of backscattered imaging, the coated surface allows determination of the sample surface points.

show abstract

“…Kugge et al [5] investigated the latex topology in the coating layer using SEM. They mainly focussed on the coating formulation and the only latex parameter that was varied was the T g .…”

Section: Observations On Latex Deformation In Coating Layersmentioning

confidence: 99%

Modelling Polymer Particle Deformation on Mineral Surfaces ‐ Part I: Validation of Initial Concepts

Araujo¹,

Brauge²,

Findlay³

2008

Macromolecular Symposia

View full text Add to dashboard Cite

Summary: A simple model based on elastic and attraction forces is proposed to describe the spreading of a cross-linked polymer particle on one or two surfaces. The model considers the internal elastic forces between the knots of reticulation and the external attraction forces between the particle and the mineral surface. The deformation and therefore the final shape of the particle is a resultant of the applied forces. The model is validated by fitting with experimental data of latex spreading on mineral surfaces, and the next steps towards using this knowledge to help design new particle structures and morphology are outlined.

show abstract

A scanning electron microscope study of the surface structure of mineral pigments, latices and thickeners used for paper coating on non-absorbent substrates

Cited by 28 publications

References 10 publications

The Application of Polysaccharides and Their Derivatives in Pigment, Barrier, and Functional Paper Coatings

The Application of Polysaccharides and Their Derivatives in Pigment, Barrier, and Functional Paper Coatings

Determination of paper filler Z‐distribution by low‐vacuum SEM and EDX

Modelling Polymer Particle Deformation on Mineral Surfaces ‐ Part I: Validation of Initial Concepts

Contact Info

Product

Resources

About