Low water absorption and pyroplastic deformation of alumina‐strengthened porcelain with petalite and Gairome clay

2020 ◽  
Vol 17 (5) ◽  
pp. 2307-2314
Author(s):  
Dong Hao ◽  
Takashi Akatsu ◽  
Asami Ohtake ◽  
Atsunori Shiraishi ◽  
Nobuaki Kamochi
Keyword(s):  
Water Absorption ◽  
Pyroplastic Deformation

scholarly journals Recycling ceramic waste as a raw material in sanitary ware production

Cerâmica ◽  
2019 ◽  
Vol 65 (375) ◽  
pp. 426-431
Author(s):  
T. H. Silva ◽  
A. C. M. Castro ◽  
F. C. Valente Neto ◽  
M. M. N. S. Soares ◽  
D. S. de Resende ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Water Absorption ◽  
Linear Shrinkage ◽  
Sanitary Ware ◽  
Raw Material ◽  
Quality Requirements ◽  
Ceramic Waste ◽  
Significant Difference ◽  
Pyroplastic Deformation ◽  
Better Than

Abstract This study characterized discarded sanitary ware waste (SWW) that could not meet quality requirements. To understand the composition of such SWW, samples were collected, processed, and characterized. This SWW was used to substitute granite in ceramic slips, and the final recycled sanitary ware compositions of 5%, 10%, 25%, 50% and 100% were obtained. Then, the mixtures were evaluated based on density, rheology, linear shrinkage, water absorption, and flexural strength. The results for viscosity and pyroplastic deformation in specimens containing the ceramic waste were better than the reference slip used in a production line. Results for density, water absorption and linear shrinkage showed no significant difference from the control samples. Although the replacement of more than 5% of granite reduced the flexural strength, no tested specimen was below the minimum value required by the industry.

scholarly journals The effect of nepheline syenite addition on pyroplastic deformation of sanitarywares

2018 ◽  
Vol 50 (1) ◽  
pp. 85-94
Author(s):  
Tuna Aydın ◽  
Nazım Kunduracı ◽  
Atamer Akbay
Keyword(s):  
Water Absorption ◽  
Nepheline Syenite ◽  
Linear Shrinkage ◽  
Technological Properties ◽  
Microstructural Characteristics ◽  
Lower Temperature ◽  
Increased Strength ◽  
Pyroplastic Deformation

Nepheline syenite is used instead of feldspars as fluxing in ceramics. In this study, three ceramic bodies were prepared. Nepheline syenite was substituted by Na feldspar in the ratio of maximum 30 wt.%. The pyroplastic deformation was evaluated together with technological properties, including linear shrinkage, water absorption and strength. Phase and microstructural characteristics were also investigated. Results showed that the addition of nepheline syenite provided a decrease in viscosity. The decrease in viscosity caused an increase in the tendency for pyroplastic deformation in bodies containing nepheline syenite; however, this result shows that bodies containing nepheline syenite can be sintered at a lower temperature than the standard body. The addition of nepheline syenite also decreased water absorption and increased strength.

Effect of ink and paperboard characteristics on flexographic print quality based on print density

TAPPI Journal ◽  
2011 ◽  
Vol 10 (9) ◽  
pp. 7-13
Author(s):  
KHODADAD MALMIRCHEGINI ◽  
FARSHAD SARKHOSH RAHMANI
Keyword(s):  
Water Absorption ◽  
Significant Influence ◽  
Particle Diameter ◽  
Print Quality ◽  
Printing Technology ◽  
Plastic Films ◽  
Printing Inks ◽  
Packaging Industry ◽  
Solids Content ◽  
Density Results

Flexography is an evolving printing technology that is suitable for printing on coated and uncoated paperboard and board, nonporous substrates including metalized and paperboard foils, and plastic films used especially in the packaging industry. This study evaluated the effect of paperboard and ink characteristics on flexographic print density in paperboard. Three commercial paperboards from different companies were prepared: brown kraft from Thailand, white kraft from Spain, and test liner from Iran. Four samples of process print inks from Iran were used in this investigation. Paperboard properties, such as roughness and water absorption, and ink characteristics, including solids content, PH and particle diameter, were measured. The inks were printed on paperboards using a roll no.15 applicator with a blade metering device, and the print densities were measured. Results showed that solids content, pH, and particle diameter of printing inks influenced print density, while the roughness and water absorption of the three types of paperboard had no significant influence on print density. Results also illustrated that two levels of ink viscosity (25–30 and 50–55 mPa·s) were insignificant to print density.

Effects of Natural Fiber Reinforcement on Water Absorption of Compressed Stabilized Earth Blocks

2012 ◽  
Vol 2 (11) ◽  
pp. 165-167
Author(s):  
B.O .Ugwuishiwu B.O .Ugwuishiwu ◽  
◽  
B.O. Mama B.O. Mama ◽  
N. M Okoye N. M Okoye
Keyword(s):  
Water Absorption ◽  
Natural Fiber ◽  
Fiber Reinforcement ◽  
Earth Blocks

Influence of Water Absorption on The Selected Properties of Hemp Hurds Composites

2015 ◽  
Vol 10 (1) ◽  
pp. 123-132
Author(s):  
Lucia Kidalova ◽  
Nadezda Stevulova ◽  
Eva Terpakova
Keyword(s):  
Water Absorption ◽  
Influence Of Water
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