Meßmethode für Wärmeeffekte bei Deformationsvorgängen

Müller, F. H.; Engelter, Ad.

doi:10.1007/bf01982282

Cited by 34 publications

(2 citation statements)

References 5 publications

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“…~ Isothermal Deformation Calorimetry. An instrument was constructed based on the original design by Miiller and Engelter 20 to simultaneously record the heat and work of the deformation process. The deformation calorimeter and measurement technique have been described.…”

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confidence: 99%

Polyurethane–urea elastomers as working substances in rubber heat engines

Lyon

Wang

Farris

et al. 1984

J of Applied Polymer Sci

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SynopsisThe possibility of using synthetic elastomers as working substances in a rubber heat engine was investigated at the laboratory and pilot scale. Two polyurethaneurea elastomers were subjected to experimental heat engine cycles a t a variety of strains and temperature differences. It was found that optimum power and thermal' efficiency were obtained at small strain perturbations where the elastomers were close to mechanical equilibrium. Crystallization of the rubbery phase during large strain perturbations is a nonequilibrium process which should be avoided. Quasi-ideal rubber behavior is approached in the pilot-scale heat engine which supports these conclusions.

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confidence: 99%

Polyurethane–urea elastomers as working substances in rubber heat engines

Lyon

Wang

Farris

et al. 1984

J of Applied Polymer Sci

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“…Ends are then secured by tying them together to prevent contraction of the sample during the DSC scan. Maintaining the sample in the elongated state is critical, as no SIC peak is observed if the sample is allowed to contract during the scan (1 [1][2][3][4][5][6][7][8][9][10][11][12][13]. The spool containing the sample is then placed opposite a reference spool in the DSC-2 and the experiment is conducted in the normal manner.…”

Section: Methodsmentioning

confidence: 99%

A differential scanning calorimetry method for determining strain‐induced crystallization in elastomeric fibers

Lyon

Farris

MacKnight

1983

J. Polym. Sci. B Polym. Lett. Ed.

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Correlations between chemical structure, stress‐induced crystallization, and deformation behavior of polyurethane elastomers

Morbitzer

Hespe

1972

J of Applied Polymer Sci

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SynopsisThe deformation behavior of polyurethane elastomers depends strongly on physical interactions.In this paper the stress-induced crystallization of the polyester or polyether segments is investigated in several polyurethane elastomer system having different chemical structure for the soft segments. The correlation between the tensile properties (hysteresis loss, extension set, modulus) and the stress-induced crystallization is discussed.

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Meßmethode für Wärmeeffekte bei Deformationsvorgängen

Cited by 34 publications

References 5 publications

Polyurethane–urea elastomers as working substances in rubber heat engines

Polyurethane–urea elastomers as working substances in rubber heat engines

A differential scanning calorimetry method for determining strain‐induced crystallization in elastomeric fibers

Correlations between chemical structure, stress‐induced crystallization, and deformation behavior of polyurethane elastomers

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