Role of different lignin systems in polymers: mechanical properties and thermal stability

Lignin was used to study the mechanical properties and thermal stability of polymers. The lignin was blended with three kinds of polymers, and the addition of lignin was 0.5 wt%. Under the condition of thermal oxidation, the thermal stability of lignin/polymer samples varies with the structure of li...

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Bibliographic Details
Published in:Polish journal of chemical technology 2020-12, Vol.22 (4), p.10-16
Main Authors: Hasan, Gvlmira, Musajan, Dilhumar, Hou, Gong-bo, He, Mingyu, Li, Ying, Yimit, Mamatjan
Format: Article
Language:English
Subjects:
Addition polymerization
Crystallization
Lignin
Mechanical properties
Molecular chains
Oxidation
polymer
Polymers
Rheological properties
Thermal stability
Thermodynamic properties
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Summary:Lignin was used to study the mechanical properties and thermal stability of polymers. The lignin was blended with three kinds of polymers, and the addition of lignin was 0.5 wt%. Under the condition of thermal oxidation, the thermal stability of lignin/polymer samples varies with the structure of lignin. The effects of lignin on the mechanical properties and thermal stability of the polymers were investigated by oxidation induction time (OIT), rheological properties, mechanical properties and differential scanning calorimetry (DSC). The results show that the effect of lignin on the thermal properties of polymer samples is 2~3°C. It can be inferred that lignin can effectively improve the interaction between polymer molecular chain segments, and improve the crystallization rate and rigidity to a certain extent, so it can be seen that lignin has good compatibility and thermal stability.
ISSN:1899-4741
1509-8117
1899-4741
DOI:10.2478/pjct-2020-0032