Thermodynamic analysis of nucleus formation in crystallization of polymers

Borokhovskii, V.A.; Gasparyan, K.A.; Mirzoyev, R.G.; Баранов, В. Г.

doi:10.1016/0032-3950(76)90211-2

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…Finally, substituting TN for T in equations [6], [7] and [8] and using the experimental values of equilibrium melting temperature T ° (1) as Tin, we obtained the plots shown respectively in figures 3, 4 and 5. Comparing [3] figures 3 and 4, we may first notice that in contrast to results of isothermal crystallization experiments (2), linearity of corresponding plots for pure nylon 6 and samples GB-50, GBA-60 and GBA-80 is observed at m =2, rather than at m =1.…”

Section: Z1 = 4boaa~mentioning

confidence: 99%

Crystallization of filled nylon 6 III. Non-isothermal crystallization

Privalko

Kawai²,

Lipalov

1979

Colloid Polymer Sci

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Section: Z1 = 4boaa~mentioning

confidence: 99%

Crystallization of filled nylon 6 III. Non-isothermal crystallization

Privalko

Kawai²,

Lipalov

1979

Colloid Polymer Sci

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“…As the non-isothermal crystallization kinetics process is very complex, there are numerous theories and models about it. For example, Gupta model, [19] Ozawa model, [20] Borokhovskii model, [22] Ziabicki model, [23] Mo model [24] and so on. All of these models are rooted in the Avrami model, but all of them have a corresponding range of application and limitations.…”

Section: Introductionmentioning

confidence: 99%

Study on the Non-isothermal Melt Crystallization Kinetics of PTT/PBT Blends

Fan

et al. 2009

Journal of Macromolecular Science, Part B

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Macro-kinetic models, namely the modified Avrami, Ozawa, Mo, and Kissinger models, were applied to investigate the non-isothermal melt crystallization process of PTT/PBT blends by DSC measurements. It was found that the modified Avrami model can describe the non-isothermal melt crystallization processes of PTT/PBT blends fairly well. When the cooling rates range from 5 to 20 • C/min, the Ozawa model could be used to satisfactorily describe the early stage of crystallization. However, the Ozawa model didn't fit the polymer blends in the late stage of crystallization, because it ignored the influence of secondary crystallization. Under the conditions of the non-isothermal melt crystallization, it was found that the cooling rates and the blend composition affect the crystallization for blends according to Kissinger crystallization kinetics parameters. The crystallization kinetics constant K a increases with increasing cooling rate, indicating the crystallization rates of PTT, PBT, and PTT/PBT blends were improved. The crystallization kinetic activation energy parameters are good agreement with the results from isothermal crystallization processes of the polymer blends. The crystallization activation energy of PTT/PBT blends is higher than the activation energy of PTT and PBT.

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Influence of the defective boundary layer on nucleation during crystallization of oriented polymer melts

Vladovskaya

Баранов

1983

Polymer Science U.S.S.R.

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Thermodynamic analysis of nucleus formation in crystallization of polymers

Cited by 4 publications

References 4 publications

Crystallization of filled nylon 6 III. Non-isothermal crystallization

Crystallization of filled nylon 6 III. Non-isothermal crystallization

Study on the Non-isothermal Melt Crystallization Kinetics of PTT/PBT Blends

Influence of the defective boundary layer on nucleation during crystallization of oriented polymer melts

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