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Cooling rate effects glass transition temperature

Figure 6.17 Specific volume versus temperature curves (a) a crystalline solid with a melting point T , (b) a glass, with a glass transition temperature T, and (c) the effects of cooling rate on glass transition temperature... Figure 6.17 Specific volume versus temperature curves (a) a crystalline solid with a melting point T , (b) a glass, with a glass transition temperature T, and (c) the effects of cooling rate on glass transition temperature...
A vital requirement for effectiveness is limited compatibility (solubility) with the host polymer and controlled mobility (rate of diffusion) in the matrix. For polymers with a low glass transition temperature (such as polyolefins), continuous migration of the anti-static agent is important to achieve the desired effect, while for polymers with a glass transition rate considerably above ambient temperature (such as PVC, ABS, and polystyrene), the decisive factor is the compatibility at the moment of cooling. [Pg.142]

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See also in sourсe #XX -- [ Pg.58 , Pg.59 ]



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