Role of lignin filler in stabilization of natural rubber-based composites

• Published in: Journal of applied polymer science Vol. 103; no. 2; pp. 1226 - 1231
• Main Authors: Košíková, B., Gregorová, A., Osvald, A., Krajčovičová, J.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.01.2007; Wiley
• Subjects: Applied sciences; differential scanning calorimetry (DSC); Exact sciences and technology; Lignin and derivatives; mechanical properties; Natural polymers; Physicochemistry of polymers; rubber; thermogravimetric analysis (TGA); Lignin; differential scanning calorimetry (DSC); Polymer blends; Property composition relationship; Thermooxidative degradation; Mechanical properties; Natural rubber; Dispersion reinforced material; Tensile property; thermogravimetric analysis (TGA); Experimental study; Thermal stability; Thermal properties; Vulcanization; Vulcanizate; Preparation; rubber
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.24530

The stabilizing effect of a natural filler, sulfur‐free lignin, on the thermal degradation of natural rubber (NR) was examined. Lignin was incorporated into NR in amounts of 10–30 phr (parts per hundred parts of rubber). It was shown that the lignin preparation used improved the physicomechanical properties of the rubber vulcanizates. Thermogravimetric analysis and differential scanning calorimetry were used to study the thermal degradation of unfilled and lignin‐filled vulcanized natural rubber. Measurements were carried out under atmospheric conditions. It was revealed that lignin used as filler increased the resistance of NR vulcanizates to thermooxidative degradation in air. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 1226–1231, 2007