Thermogravimetry compositional analysis

The thermal characterisation of elastomers has recently been reviewed by Sircar [28] from which it appears that DSC followed by TG/DTG are the most popular thermal analysis techniques for elastomer applications. The TG/differential thermal gravimetry (DTG) method remains the method of choice for compositional analysis of uncured and cured elastomer compounds. Sircar s comprehensive review [28] was based on single thermal methods (TG, DSC, differential thermal analysis (DTA), thermomechanical analysis (TMA), DMA) and excluded combined (TG-DSC, TG-DTA) and simultaneous (TG-fourier transform infrared (TG-FTIR), TG-mass spectroscopy (TG-MS)) techniques. In this chapter the emphasis is on those multiple and hyphenated thermogravimetric analysis techniques which have had an impact on the characterisation of elastomers. The review is based mainly on Chemical Abstracts records corresponding to the keywords elastomers, thermogravimetry, differential scanning calorimetry, differential thermal analysis, infrared and mass spectrometry over the period 1979-1999. Table 1.1 contains the references to the various combined techniques. [Pg.2]

ASTM E1131-98, Standard Test Methods for Compositional Analysis by Thermogravimetry, 1998. [Pg.45]

J. C. May, R. M. Wheeler, and A. Del Grosso, Compositional analysis of drugs and injectable biological products by thermogravimetry, in ASTM Special Technical Publication 997. Philadelphia American Society for Testing and Materials, 1988, pp. 48-56. [Pg.230]

Wiedemann, H. G., Riesen, R., Boiler, A., and Bayer, G. (1988). From wood to coal A compositional thermogravimetric analysis. In Compositional Analysis by Thermogravimetry (C. M. Earnest, Ed.), pp. 227-244. American Society for Testing and Materials, Philadelphia. [Pg.215]

Earnest, C. M., Compositional Analysis by Thermogravimetry, ASTM Special Technical Publication 997,1988. [Pg.1970]

Of interest in studies of polymer degradation are two standard tests, the ASTM D 3850 (1994) test method for rapid thermal degradation of solid electrical insulating materials by thermogravimetric method, and the ASTM D 6370 (1999) standard test method for rubber compositional analysis by thermogravimetry. [Pg.37]

Compositional analysis of polymers, rubbers and foods, as well as mixtures of inorganic salts may also be carried out by thermogravimetry. [Pg.40]

D 6370 (1999) Standard Test Method for Rubber-Compositional Analysis by thermogravimetry... [Pg.202]

Test method for compositional analysis hy thermogravimetry Test method for determining specific heat capacity by differential scanning calorimety... [Pg.106]

TG/DTG has gained wide acceptance as a method for compositional analysis of polymer/oil/CB mas-terbatches and of compounded rubber and vulcan-isates as evidenced by the ASTM E 1131-03 test method on Compositional Analysis by Thermogravimetry . The standard test method for compositional analysis of elastomers by TG [239] describes a general procedure to determine the quantity of four arbitrarily defined components ... [Pg.181]

ASTM E 1131-98, Test Method for Compositional Analysis by Thermogravimetry, Annual Book of ASTM Standards, ASTM, West Conshohocken, PA (1999), Vol. 14.02. [Pg.306]

In the field of polymer/additive analysis various validated procedures (after interlaboratory tests) do exist. Various such procedures have been given in the present text (cfr also Chp. 8.3 for CRM development). Here we just mention the ASTM Standard Method of Test for Carbon-Black in Polyethylene Plastics (E 1603) and the ASTM Test Method for Compositional Analysis by Thermogravimetry (ASTM Standard Method E 1131) [89], which outlines a general technique for analysis of... [Pg.750]

Thermogravimetry thermal analysis(TGA) was performed on a TGA/DSC 1 Star System to determine composition of samples. The samples of 5-6 mg in aluminum pans were heated at a rate of 10°C/min from 0 to 500°Cunder nitrogen atmosphere. [Pg.284]

Thermogravimetry is used in the polymer field for the determination of the thermal stability, the quantitative compositional analysis of plastics and rubbers as well as of blends and for the detection of volatiles in vulcanized materials. [Pg.76]

E1131 -03 Standard Test Method for Compositional Analysis by Thermogravimetry E1582-04 Standard Practice for Calibration of Temperature Scale for Thermogravimetry E1641-04 Standard Test Method for Decomposition Kinetics by Thermogravimetry... [Pg.113]

The synthesis of the complex is followed by the most important step of characterization of the complex. The composition and the structural features of both the ligand and complex have to be established before embarking on further studies. There exist many methods by which the composition and structural features of the complexes are studied. Some of the methods are (i) elemental analysis, (ii) X-ray crystallography, (iii) UV-Vis absorption spectra, (iv) infrared spectroscopy, (v) Raman spectroscopy, (vi) thermal methods of analysis such as thermogravimetry, differential thermal analysis, (vii) nuclear magnetic resonance spectroscopy (proton, multinuclear), (viii) electrospray mass spectrometry. Depending upon the complexity of the system, some or all the methods are used in the studies of complexes. [Pg.271]

Thermogravimetry (TG) or thermogravimetric analysis (TGA). In this technique, the mass of a sample is followed as a function of temperature or time. The amount and rate of mass change with temperature or time in a controlled atmosphere are obtained. Such information can tell us about thermal stability as well as the compositional profile of a variety of elastomers and polymers. It is an excellent quantitative technique but qualitatively there may be some doubt as to what material is lost during heating. [Pg.236]

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