Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Thermogravimetric analysis Rubber

Homma, H., Kuroyagi, T., Izumi, K., Mirley, C.L., Ronzello, J. and Boggs, S.A., Evaluation of surface degradation of silicone rubber using thermogravimetric analysis, Proc. Int. Symp. Electr. Insul. Mater., 2nd. 1998, 1, pp. 631-634. [Pg.707]

Thermogravimetric analysis can yield a considerable amount of information about the composition of an elastomer system and is a common means of testing of EPDM rubber compounds [51]. The DTG curve may serve as an identifier of the type of elastomer in a compounded formulation. [Pg.14]

Sircar [138] has reviewed the analysis of elastomer vulcanisate composition by TG/DTG techniques. The classical ASTM method, D297-93 [139], is too lengthy to be of much practical use on a routine basis, often requires preliminary identification of the polymer and is costly. TG has gained itself wide acceptance as a method for quantitative compositional analysis of vulcanisates ASTM El 131 [140], is basically designed for the analysis of rubber compounds [141]. Thermogravimetric analysis can be used to determine ... [Pg.14]

Jana RN, Nando GB (2003) Thermogravimetric analysis of blends of low-density polyethylene and poly(dimethyl siloxane) rubber The effects of compatibilizers. J Appl Poly Sci 90(3) 635-642... [Pg.142]

Thermogravimetric analysis was used to follow the curing of polymer films. This technique is predicated on the volatility of the unreacted components. In the present study the volatile components have been determined to be EEA, HDODA, TMPTA, Irgacure 651, and their volatile reaction products. The Epocryl 370 resin and the VTBN rubber were found not to contribute to the volatiles. Decomposition of the mixtures generally took place about 310-350°C in all cases, including the rubber modified samples. [Pg.335]

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]

The rubber has to satisfy a number of criteria. First it should meet the general standard of physical properties laid down by the customer. To demonstrate compliance the first five batches of compound are subjected to the full specification tests to which are added rheometer and thermogravimetric analysis (TGA). These last two provide a production marker that will show conformity for the cure rate and to composition. They are rapid tests and allow bought in compoimds to be used with a high level of confidence provided that the supplier of the compound has been audited and found to conform to the required standard. [Pg.65]

Standard Malaysian rubber Tun Abdel Razak Research Centre N-Tef -butyl-2-benzothiazole sulfenamide Thermogravimetric analysis Tetramethyl thiuram disulfide Tetramethyl thiuram monosulfide Zinc 2-ethyl hexanoate... [Pg.104]

Mathew, A.P., Packirisamy, S., Thomas, S. Studies on the thermal stability of natural rubber/polystyrene interpenetrating polymer networks thermogravimetric analysis. Polym. Degrad. Stab. 72, 423 39 (2001)... [Pg.45]

Natural rubber-CaC03 nanocomposites Modified CaC03 addition into NR sulfur vulcanizing Calorimetry and thermogravimetric analysis for physical, thermooxidative aging and thermal degradation property assessment microstructure analysis [96]... [Pg.86]

The reaction of carbenes with olefins to form cyclopropyl derivatives has been used to modify elastomers. Pinazzi and Levesque and Berentsvich et al. found that carbene addition had a significant influence on the properties of polydienes. Thermogravimetric analysis (TGA), flammability and oil resistance in NR and dichlorocarbene modified styrene butadiene rubber (DCSBR) blends were investigated by thermogravimetrie analysis as a funetion of different composition. The TGA plots confirmed the better thermal stability and flame resistance of DCSBR as well as its blends with NR. The amount of DCSBR in the blend significantly affected the properties of blends. [Pg.580]

Recently, a group of Indian researchers developed a new elastomer product based on NR/BR blend with reclaim rubber (RR) from ground rubber tires (GRT). The reclaiming was carried out by tetra methyl thiuram disulfide (TMTD) in the presence of spindle oil, a paraffin-based rubber process oil. Thermogravimetric analysis of RR, NR/BR and different NR/BR/RR vulca-nizates was carried out in order to measure the thermal stability of the vulca-nizates. Isothermal ageing test of fresh rubber RR composites showed that the ageing performance of RR containing vulcanizates are superior than that of the fresh rubber vulcanizates, which do not contain any reclaimed rubber. [Pg.581]

Thermal degradation and volatilization of chloroprene rubbers and blends thereof have been studied using thermogravimetric analysis. ... [Pg.22]

Dan and co-workers [8] studied the structures and thermal and thermo-oxidative stabilities of the gel and chlorinated natural rubber from latex. The polymers were analysed by chemical analysis, high-resolution pyrolysis-gas chromatography-mass spectroscopy (HR-Py-GC-MS) coupled with Fourier-transform infrared spectroscopy, and thermal analysis techniques [dynamic thermal analysis and thermogravimetric analysis (TGA)]. [Pg.89]

See other pages where Thermogravimetric analysis Rubber is mentioned: [Pg.17]    [Pg.31]    [Pg.84]    [Pg.105]    [Pg.99]    [Pg.1708]    [Pg.2968]    [Pg.223]    [Pg.118]    [Pg.108]    [Pg.222]    [Pg.3807]    [Pg.85]    [Pg.233]    [Pg.153]    [Pg.336]    [Pg.336]    [Pg.337]    [Pg.338]    [Pg.404]    [Pg.575]    [Pg.77]    [Pg.789]    [Pg.601]    [Pg.50]    [Pg.22]    [Pg.107]    [Pg.137]   
See also in sourсe #XX -- [ Pg.110 ]



SEARCH



Rubbers, analysis

Thermogravimetric analysis

© 2024 chempedia.info