Enhancement of mechanical, thermal and water uptake performance of TPU/jute fiber green composites via chemical treatments on fiber surface
| Autor: | Umit Tayfun, Seha Tirkes, Alinda Oyku Akar, Tuffaha Fathe Salem |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics eco-composites General Chemical Engineering 02 engineering and technology 010402 general chemistry 01 natural sciences Water uptake Thermal Fiber Physical and Theoretical Chemistry Composite material chemistry.chemical_classification Melt mixing jute fiber melt mixing Industrial chemistry Polymer surface treatment 021001 nanoscience & nanotechnology Polyurethane elastomer 0104 chemical sciences lcsh:TP1080-1185 chemistry lcsh:Polymers and polymer manufacture polyurethane elastomer 0210 nano-technology |
| Zdroj: | e-Polymers, Vol 20, Iss 1, Pp 133-143 (2020) |
| ISSN: | 1618-7229 |
| Popis: | Chopped jute fiber (JF) surfaces were modified using alkaline, silane and eco-grade epoxy resin. Surface characteristics of jute fibers were confirmed by FTIR and EDX analyses. JF filled polyurethane elastomer (TPU) composites were prepared via extrusion process. The effect of surface modifications of JF on mechanical, thermo-mechanical, melt-flow, water uptake and morphological properties of TPU-based eco-composites were investigated by tensile and hardness tests, dynamic mechanical analysis (DMA), melt flow index (MFI) test, water absorption measurements and scanning electron microscopy (SEM) techniques, respectively. Mechanical test results showed that silane and epoxy treated JF additions led to increase in tensile strength, modulus and hardness of TPU. Glass transition temperature (Tg) of TPU rose up to higher values after JF inclusions regardless of treatment type. Si-JF filled TPU exhibited the lowest water absorption among composites. Surface treated JFs displayed homogeneous dispersion into TPU and their surface were covered by TPU according to SEM micro-photographs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
http://www.degruyter.com/view/j/epoly.2020.20.issue-1/epoly-2020-0015/epoly-2020-0015.xml?format=INT
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