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Modularising thermogravimetric analysis (TGA) and its applications to a wet process masterbatch plant (Record no. 63140)

MARC details
000 -LEADER
fixed length control field	02206nam a2200217Ia 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name	Sum Ng Chiew
245 #0 - TITLE STATEMENT
Title	Modularising thermogravimetric analysis (TGA) and its applications to a wet process masterbatch plant
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher	Jounal of Rubber Research
Year of publication	2013
300 ## - PHYSICAL DESCRIPTION
Number of Pages	215-226
520 ## - SUMMARY, ETC.
Summary, etc	Thermogravimetric analysis(TGA) is indispensable in analysing the composition of rubber compounds. In the TGA test, a rubber compound is fractionated into four fractions comprising liquid or low melting point solid, polymers, carbon black and mineral fillers. Small sample weight can reult in large errors for rubber compounds that are not fully dispersed. Test equipement is expensive and therefore it is not a suitable choice for large numbers of production samples. Density measurements of rubber compound is a viable alternative for a quick test. Both thesse tests were initially applied to a production line of wet process masterbatch plant and shortcomings of these two methods were enumerated. An alternative testing scheme involving thermogravimetric and solvent extraction has been devised and tested successfully. Samples of the same compound with different weights were tested via Soxhlet solvent extraction, nitrogen pyrolysis nad oxygen pyrolysis. The results were combined mathemetically and basic equations were derived. Test variability was low and comparable to conventional TGA using microbalance. Results were correlated with elatest density measurements, although the 1:1 unity line correlation was not possible. Assumptions were made on the full incorporation of low melting point solids, as well as densities of various components and these could explain the discrepancies observed. Modularisation ot TGA test allows for improvements in the component test method. A large number of tests were carried out in a continuous production line turning out carbon black masterbatches.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	ASTM D6370
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Compositional analysis
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Elatest
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Modularised TGA
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Natural rubber
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Rubber compound
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	TGA
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Wet process masterbatch
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	Journals

Holdings
Withdrawn status	Lost status	Damaged status	Not for loan	Home library	Current library	Date acquired	Serial Enumeration / chronology	Koha item type
			Journals	RRII Library	RRII Library	24/03/2014	Volume 16, Issue 4	Journals