Isothermal crystallization kinetics

The overall isothermal crystallization kinetics of polymers can be described by the Avrami equation [88-90] ... [Pg.34]

Recently, the isothermal crystallization kinetics of the PE block within SEC triblock copolymers was investigated [94]. When the PE content in the... [Pg.69]

Verhoyen, 0., Dupret, F. and Legras, R., Isothermal and non-isothermal crystallization kinetics of polyethylene terephthalate mathematical modeling and experimental measurement, Polym. Eng. Sci., 38, 1592-1610 (1998). [Pg.190]

Chuah [54, 55] compared the isothermal crystallization kinetics of PET, PTT and PBT using DSC, and found PTT to have a crystallization rate in between those... [Pg.372]

There have been many related works by other research groups that are concerned with the phase behavior, isothermal crystallization kinetics, and tensile properties of cellulose propionate (DS = 2.75)/PHB blends [129], the miscibility and crystallization behavior of CAB/PHB blends [ 130], or the melt... [Pg.124]

D. W. Henderson, Thermal Analysis of Non-Isothermal Crystallization Kinetics in Glass Forming Liquids , Journal of Non-Crystalline Solids, 30 301-315 (1979). [Pg.90]

The stereosequence length also has a marked effect on the isothermal crystallization kinetics of the propylene oxide polymers. These studies and analysis of results on crystallization kinetics will be described in detail in another communication. Here we summarize briefly the main conclusions of the effect of stereosequence length on the isothermal crystallization rates. [Pg.96]

Foubert, I., Vanrolleghem, P.A. and Dewettinck, K. (2003). A differential seanning calorimetry method to determine the isothermal crystallization kinetics of cocoa butter. Thermochemica Acta, 400 131-142. [Pg.545]

As can be seen from Table 4, introduction of kerogene into polyethylene does not lead to significant change in isothermic crystallization kinetics. [Pg.15]

It is very important to understand non-isothermic kinetics to analyse the composition s technological properties, especially at very high sp s of cooling, which occur in thermoplasts and thermoplast-based compositions processing. The method for describing and forecasting non-isothermic crystallization kinetics is proposed in Ref [59]. Alternative methods for describing kinetics are in the studies cited in Ref [59] (see also Refs. [66, 67]). The essence of the method in Ref [59] is as follows. [Pg.15]

When the TTS principle is carried out, the non-isothermic crystallization kinetics can be described by replacing argument t in the dependence of non-crystallinity degree of time during isothermic crystallization. The replacement equation is... [Pg.16]

It is of interest to describe the function axo(t) analytically. This was done in [59] on the assumption that isothermic crystallization kinetics of thermoplasts and thermoplast-based compositions is described by the Kholmogorov-Avrami Equation (17). Let us write down Eq. (17) in a different way ... [Pg.16]

Metin, S., and R.W. Hartel, Thermal Analysis of Isothermal Crystallization Kinetics in Blends of Cocoa Butter with Milk Fat or Milk Fat Fractions, Ibid. 75 1617-1624 (1990). [Pg.78]

The isothermal crystallization kinetics has been analyzed by means of the Avrami equation ... [Pg.516]

Isothermal Crystallization Kinetics of Compatibilized Blends of Polyolefins with a Semiflexible LCP... [Pg.519]

The isothermal crystallization kinetics of the dynamically cured blends was analyzed using Avrami s equation as given below. [Pg.632]

The isothermal crystallization kinetics is studied mainly with the Avrami equation (logarithmic form in equation 8.2), where < )(f) is the relative crystallinity, n and are the Avrami exponent and crystallization rate constant respectively. [Pg.196]

The isothermal crystallization kinetics from the melt of all PEO/PMMA blends follow the Avrami equation until a high degree of conversion. The values of the overall kinetic constant and of the... [Pg.77]

The crystallization of polymer in bulk as well as in solution is initiated by nucle-ation followed by growing of spheralites (Mandelkem, 2002). A common fundamental approach to study isothermal crystallization kinetics is the heuristic Avratni phase transition theory (Avrami, 1939 1940 1941). [Pg.443]

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