Nonisothermal Crystallization Kinetic of LLDPE/Diatomite/Graphene Nanocomposites Using an Isoconversional Approach

Guo, Qian; Chen, Liu; Li, Yanchun; Jiang, Aifeng; Artiaga, Ramón

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https://hdl.handle.net/2183/47975

Nonisothermal Crystallization Kinetic of LLDPE/Diatomite/Graphene Nanocomposites Using an Isoconversional Approach

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Guo_Qian_2026_Nonisothermal_crystallization_kinetic.pdf (1.57 MB)

Identifiers

URI: https://hdl.handle.net/2183/47975

DOI: 10.1155/adv/9946272

Publication date

2026

Authors

Guo, Qian

Chen, Liu

Li, Yanchun

Jiang, Aifeng

Artiaga, Ramón

Bibliographic citation

Guo, Qian, Chen, Liu, Li, Yanchun, Jiang, Aifeng, Artiaga, Ramón, Nonisothermal Crystallization Kinetic of LLDPE/Diatomite/Graphene Nanocomposites Using an Isoconversional Approach, Advances in Polymer Technology, 2026, 9946272, 11 pages, 2026. https://doi.org/10.1155/adv/9946272

Abstract

[Abstract] Linear low-density polyethylene (LLDPE), a semicrystalline polymer featuring short-chain branched architectures, displays crystallization behavior that is highly sensitive to molecular topology and processing conditions. In this study, the nonisothermal crystallization kinetics of LLDPE composites filled with diatomite (DE), graphene (G), and their hybrid (DE/G) were investigated via differential scanning calorimetry (DSC). The Mo method and Vyazovkin’s isoconversional approach were employed to determine the crystallization kinetic parameters. The results indicate that G exerts the most significant nucleation effect on LLDPE crystallization, reducing the crystallization activation energy by 30 kJ/mol, and t1/2 decreases from 0.78 to 0.48 min, and the crystallization rate increases by approximately a factor of 1.63 at a cooling rate of 15 K/min. These variations are primarily attributed to the influence of G on the crystallization rate and melting point of LLDPE.