التفاصيل البيبلوغرافية
| العنوان: |
Effect of Modified and Unmodified Oak Bark (Quercus Cortex) on the Cross-Linking Process and Mechanical, Anti-Aging, and Hydrophobic Properties of Biocomposites Produced from Natural Rubber (NR). |
| المؤلفون: |
Smejda-Krzewicka, Aleksandra, Mrozowski, Konrad, Strzelec, Krzysztof |
| المصدر: |
Materials (1996-1944); May2024, Vol. 17 Issue 9, p1968, 24p |
| مصطلحات موضوعية: |
RUBBER, OAK, AGING prevention, CONTACT angle, TENSILE strength, SILANIZATION |
| مستخلص: |
The study explores the novel use of oak bark (Quercus cortex) as a bio-filler in elastomeric composites, aligning with the global trend of plant-based biocomposites. Both modified and unmodified oak bark were investigated for their impact on the physicochemical properties of natural rubber (NR) composites. The bio-filler modified with n-octadecyltrimethoxysilane exhibited enhanced dispersion and reduced aggregates in the elastomeric matrix. NR composites containing more than 20 phr of unmodified and modified oak bark demonstrated an increased degree of cross-linking (αc > 0.21). Mechanical properties were optimal at 10–15 phr of oak bark and the sample with modified bio-filler (10 phr) achieved the highest tensile strength (15.8 MPa). Silanization and the addition of the bio-filler increased the hardness of vulcanizates. The incorporation of oak bark improved aging resistance at least two-fold due to phenolic derivatives with antioxidant properties. Hydrophobicity decreased with added bark, but silanization reversed the trend, making samples with a high content of oak bark the most hydrophobic (contact angle: 129°). Overall, oak bark shows promise as an eco-friendly, anti-aging filler in elastomeric composites, with modification enhancing compatibility and hydrophobicity. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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