Phase structural analyses of polyethylene extrusion coatings on high-density papers. II. Influence of paper surface properties on the polyethylene morphology

2003 ◽  
Vol 91 (1) ◽  
pp. 226-234 ◽  
Author(s):  
Knut Magne Furuheim ◽  
David E. Axelson ◽  
Henrik W. Antonsen ◽  
Torbj�rn Helle
Keyword(s):  
Surface Properties ◽  
High Density ◽  
Paper Surface

scholarly journals Surface Properties of Pine Scrimber Panels with Varying Density

Coatings ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 397 ◽  
Author(s):  
Jinguang Wei ◽  
Qiuqin Lin ◽  
Yahui Zhang ◽  
Wenji Yu ◽  
Chung-Yun Hse ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Properties ◽  
Photoelectron Spectroscopy ◽  
Lower Surface ◽  
Contact Angles ◽  
High Density ◽  
Water Contact ◽  
Change Rate ◽  
Hydrophilic Material ◽  
Wood Grain

Coating quality for scrimber products against exterior conditions is largely dependent on the surface properties. The wettability, morphology, and chemical composition of pine scrimber surfaces were investigated to better understand the surface properties. The scrimber was found to be a hydrophilic material because the water contact angles were less than 90°. The panels with a density of 1.20 g/cm3 had the largest angle change rate (k = 0.212). As the panel density increased, the instantaneous contact angle of each test liquid (i.e., water, formamide, and diiodomethane) on the panels decreased, and so did surface free energy. Panels with higher density showed lower surface roughness. Surface roughness across the wood grain was greater than that along the grain. SEM observations showed the high-density panels had a smoother surface with fewer irregular grooves in comparison with the low-density panels. X-ray photoelectron spectroscopy (XPS) analysis indicated that more unoxygenated groups appeared on the surface of high-density panels.

scholarly journals A New Approach for the Modification of Paper Surface Properties Using Polyoxometalates

Materials ◽  
2010 ◽  
Vol 3 (1) ◽  
pp. 201-215 ◽  
Author(s):  
Mikhail Saraiva ◽  
José A. Gamelas ◽  
António Mendes de Sousa ◽  
Bruno Reis ◽  
José Amaral ◽  
...  
Keyword(s):  
Surface Properties ◽  
New Approach ◽  
Paper Surface

A PROPOSAL TO USE MICROWAVE CAVITIES TO STUDY THE SURFACE PROPERTIES OF HIGH DENSITY PLASMAS

1961 ◽  
Vol 39 (12) ◽  
pp. 1901-1910 ◽  
Author(s):  
F. L. Curzon ◽  
Roger Howard
Keyword(s):  
Surface Properties ◽  
Dynamic Properties ◽  
High Density ◽  
Microwave Cavity ◽  
Microwave Cavities ◽  
Z Pinch

It is suggested that the resonant properties of a cylindrical microwave cavity containing a highly conducting axial plasma rod could be used to obtain information about the dynamic properties of such a plasma. Two applications of the method are considered: an investigation of electrically exploded wires, and a study of the dynamics of the conventional z-pinch during its initial stages.

Study on Coating Surface Topography and Properties of Coated Paper Related to Pigment

2012 ◽  
Vol 466-467 ◽  
pp. 504-507
Author(s):  
Ying Li ◽  
Bei Hai He
Keyword(s):  
Surface Topography ◽  
Surface Properties ◽  
Coating Layer ◽  
Layer Structure ◽  
Chemical Properties ◽  
Physical Structure ◽  
Coated Paper ◽  
Paper Surface ◽  
Coating Surface ◽  
Printing Ink

The physical structure and chemical properties of coating layer have an important influence on transferring and setting of the printing ink. In this study, the effect of pigment on coating layer structure and surface properties was investigated. The surface topography was explored using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The findings indicated that the pigment affected the pore size, depth and distribution of the coated paper surface. The conclusions were drawn that coating could improve coating surface topography and calcium carbonate pigment compared with kaolin pigment was not good to the paper surface properties, which resulted in high roughness, low paper gloss, high ink absorption and low paper surface efficiency.

The effect of zeolite on inkjet coated paper surface properties and deinking

2020 ◽  
Vol 35 (3) ◽  
pp. 432-439
Author(s):  
Arif Ozcan ◽  
Dogan Tutak
Keyword(s):  
Surface Properties ◽  
Surface Coating ◽  
Kaolin Clay ◽  
High Grade ◽  
Coating Properties ◽  
Recycling Process ◽  
Paper Surface ◽  
Coated Papers ◽  
Inkjet Printer ◽  
Better Than

AbstractCoatings are generally applied for opacity, smoothness and gloss on the paper surface. Pigments such as CaCO3, Kaolin-Clay and Zeolite are used, and natural or synthetic binders are used. In this study, coatings using the CaCO3, Kaolin-Clay and Zeolite pigments on 80 gr/m2 high grade papers were made. PVOH was used as binder. Following coating, papers were processed through supercalendering and printed with inkjet printer. Using INGEDE method 11p. recycling process printed papers were deinked. The optical properties of the recycled papers obtained after the deinking treatment, were compared with the unprinted papers. At the end of the study, the effect of coating on paper surface and the recycling performances of the inkjet printed papers were revealed. It was determined that the papers in which zeolite was used as a pigment were better, in terms of both surface properties and recycling performance when surface properties and recycling performance of coated papers were examined. When all the results were compared, it was found that the performances of coatings for which zeolite was used were much better than coatings such as CaCO3 and Kaolin-Clay, both in terms of surface coating properties such as opacity, roughness and gloss and recycling results such as brightness.

The influence of screening process parameters on paper properties produced from wastepaper

2020 ◽  
Vol 110 ◽  
pp. 16-24
Author(s):  
Anhelina Nikalaichyk ◽  
Edyta Małachowska
Keyword(s):  
Surface Properties ◽  
Process Parameters ◽  
Raw Material ◽  
Paper Strength ◽  
Recycled Paper ◽  
Cellulose Fibres ◽  
Screening Process ◽  
Paper Properties ◽  
Paper Surface ◽  
The Impact

The influence of screening process parameters on paper properties produced from wastepaper. Wastepaper processing is of pivotal importance for environmental protection; it is also crucial for the economy and the management of raw materials. Not only does recycling save space at landfills, it also saves an extremely valuable raw material used for paper production, i.e. wood. Unlike primary pulps, however, wastepaper contains much more than just cellulose fibres and fillers. The fact that recycled paper contains many contaminants, such as metal staples, paper clips, plastic film, glass fragments, and others, makes it necessary to develop a much more complex pulp preparation systems compared to the ones used for primary pulps. Contaminants affect not only the usable quality of paper made of wastepaper, but also cause the wear and tear of paper processing equipment. Thus, the purifying and screening of secondary pulps for further processing is very important. Considering the above, the authors’ objective was to study the impact of the width of screen slots on paper properties if produced from screened wastepaper pulp. Paper strength and paper surface properties were used as the main evaluation criteria. White and mixed wastepaper was used as research material. Based on the tests, the screen slot width was found not to have any significant impact on either paper mechanical strength or paper surface properties.

The Influence of Paper's Whiteness and Smoothness on Colorimetric Effects

2012 ◽  
Vol 182-183 ◽  
pp. 361-364
Author(s):  
Guan Xiao Bao ◽  
Wen Yan Jiang
Keyword(s):  
Process Control ◽  
Surface Properties ◽  
Experimental Methods ◽  
Print Quality ◽  
Test Target ◽  
Color Reproduction ◽  
Paper Surface ◽  
Printing Quality ◽  
Printing Inks ◽  
Practical Guidance

By experimental methods, the influence of paper's properties on solid ink density and color reproduction results of digital prints was investigated, and different printing requirements on paper surface properties are analyzed. Different categories of paper were used, of which whiteness and smoothness was analyzed firstly, and then were output by same test target. Result shows that the paper's properties will impact on print quality to some extent, different paper should be taken for different images. The results of this paper has some practical guidance for printing companies, which can be used to research the printability of printing inks and papers, optimize printing process, improve printing quality, and provide method of standardization of process control.

Development of Functional Surfaces on High-Density Polyethylene (HDPE) via Gas-Assisted Etching (GAE) Using Focused Ion Beams

2015 ◽  
Vol 21 (6) ◽  
pp. 1379-1386
Author(s):  
Meltem Sezen ◽  
Feray Bakan
Keyword(s):  
Surface Properties ◽  
High Density Polyethylene ◽  
Soft Matter ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Polymer Surface ◽  
High Density ◽  
Irradiation Damage ◽  
Physical Chemical ◽  
Functional Surfaces

AbstractIrradiation damage, caused by the use of beams in electron and ion microscopes, leads to undesired physical/chemical material property changes or uncontrollable modification of structures. Particularly, soft matter such as polymers or biological materials is highly susceptible and very much prone to react on electron/ion beam irradiation. Nevertheless, it is possible to turn degradation-dependent physical/chemical changes from negative to positive use when materials are intentionally exposed to beams. Especially, controllable surface modification allows tuning of surface properties for targeted purposes and thus provides the use of ultimate materials and their systems at the micro/nanoscale for creating functional surfaces. In this work, XeF2 and I2 gases were used in the focused ion beam scanning electron microscope instrument in combination with gallium ion etching of high-density polyethylene surfaces with different beam currents and accordingly different gas exposure times resulting at the same ion dose to optimize and develop new polymer surface properties and to create functional polymer surfaces. Alterations in the surface morphologies and surface chemistry due to gas-assisted etching-based nanostructuring with various processing parameters were tracked using high-resolution SEM imaging, complementary energy-dispersive spectroscopic analyses, and atomic force microscopic investigations.

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