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Jayme, Georg

doi:10.2524/jtappij.10.105

Cited by 11 publications

(14 citation statements)

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“…Newsprint paper was used as a reinforcement for rubber composites. The chemical and physical analyses of the fiber waste were carried out according to standard methods30–33 and were recorded in Table I.…”

Section: Methodsmentioning

confidence: 99%

Newsprint paper waste as a fiber reinforcement in rubber composites

El‐Nashar¹,

Abd‐El‐Messieh

Basta

2003

J of Applied Polymer Sci

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ABSTRACT:The investigation of the economical use of lignocellulose waste, which is one of the environmental problems facing third-world nations, is ongoing. In this study, we intended to increase the use of newsprint fibers in the rubber industry. For this reason, we treated newsprint fibers with sodium silicate and magnesium chloride, and we examined the water retention values and thermal degradation analyses of the treated fiber waste. The activation energy of degradation was evaluated with the Coats-Redfern method of analysis. The effects of the addition of different amounts [0 -60 parts per hundred parts of rubber by weight (phr)] of untreated and treated newsprint fibers on both the electrical and mechanical properties of two different types of rubber (natural rubber and acrylonitrile rubber) were studied. This study led us to the conclusion that the addition of treated newsprint fiber waste at a concentration of 40 phr could lead to an end product characterized by good electrical and mechanical properties.

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Section: Methodsmentioning

confidence: 99%

Newsprint paper waste as a fiber reinforcement in rubber composites

El‐Nashar¹,

Abd‐El‐Messieh

Basta

2003

J of Applied Polymer Sci

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“…LDA96029). WRV (water retention value) was determined according to the method of Jayme [23]. Specific surface area of the fines was measured by BET (Brunauer, Emmett, and Teller) nitrogen absorption method.…”

Section: Fines Characterizationmentioning

confidence: 99%

Effect of different types of fines on the properties of recycled chemical pulp

Lee

Nam²,

Sohn³

et al. 2011

Journal of Industrial and Engineering Chemistry

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“…The methods used in determining this value are centrifuging (water retained under standard centrifuging) (11,12), hydrostatic tension (water retained under standard tension) (13), and suction (water retained under suction or vacuum) (14). All these methods can be employed at any temperature and the experimental techniques are quite simple.…”

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confidence: 99%

Measurement of Bound (Nonfreezing) Water by Differential Scanning Calorimetry

Deodhar

Luner

1980

ACS Symposium Series

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Various terms have been used to characterize the water associated with cellulose fibers. Bound water, imbibed water, water of constitution, adsorbed water, fiber saturation point are some of the terms that have been used to describe the water in pulps and papers. The origin of each term can be traced to either theoretical considerations or to the experimental method of measurement. Bound water has been the most popular term used to describe the associated water. Bulk water or free water is that portion of water not associated (or not bound) with the fibers. Two measurement techniques may not yield identical values of bound water. The non-existence of a sharp boundary between bound water and free water is one reason for such discrepancies. In addition, two methods may be measuring different physical phenomena. Measurement of Bound Water NMR (Nuclear Magnetic Resonance) (_1,_2,J3,4). This technique detects the mobility of protons in various energy states. The hydrogen atoms in bound water are at different energy levels than the hydrogen atoms in free water. These energy levels are measured and recorded in the form of NMR spectra. The bound water can be calculated from the NMR spectrum. NMR measurements may be done at any temperature. While NMR may be the most basic method for the measurement of bound water, it requires expensive equipment, trained personnel, and considerable preparation for each experiment. These requirements are not frequently available to the researcher in the paper industry. Calorimeter (4,_5,6) . When a wet pulp sample is cooled well below 0°C, the free water freezes but the bound water remains in the non-frozen state. When the frozen sample is heated in a calorimeter, the heat required to melt the frozen water can be measured. Non-frozen water, which is defined as the bound water, is the difference between the total water and the frozen water. The freezing of free water and non-freezing of 0-8412-0559-0/ 80/47-127-273$05.00/ 0 DSC (Differential Scanning

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Cited by 11 publications

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Newsprint paper waste as a fiber reinforcement in rubber composites

Newsprint paper waste as a fiber reinforcement in rubber composites

Effect of different types of fines on the properties of recycled chemical pulp

Measurement of Bound (Nonfreezing) Water by Differential Scanning Calorimetry

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