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Decomposition and cross-linking

Attempts to give a quantitative analysis of plastisol extrusion were undertaken only in a few published papers. They were based on the analysis of plastisol viscosity as a function of temperature and time. If in the processing of thermosetting plastics their viscosity is assumed as practically independent of time (except of materials sensitive to structural and chemical transformation in temperature and stress fields which are accompanied by thermo-mechanical decomposition and cross-linking of macromolecular chains, the extent of the larter being influenced by the time of exposure to thermal and mechanical loads 18-21)), then at extrusion of plastisols, in view of their gelatination, the additional condition should be satisfield ... [Pg.87]

Maximum damping peak (glass transition of nitrocellulose) 446-451 K (173-178 °C), relative modulus decreases by 2-3 orders of magnitude sub-damping peak (decomposition and cross-linking of nitrocellulose) ca 456-483 K (ca 183-210 °C), relative modulus increases. [Pg.374]


See other pages where Decomposition and cross-linking is mentioned: [Pg.391]    [Pg.155]   


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