| NR | Natural Rubber |
| AC | Azodicarbonamide |
| BF | Bamboo Fibers |
| CF | Collagen Fibers |
| DF | Rice Husk Fibers Derived from Distiller’s Grains |
| TMTD | Tetramethylthiuram Disulfide |
| DMA | Dynamic Mechanical Analyzer |
| FT-IR | Fourier Transform Infrared Spectroscopy |
| XPS | X-ray Photoelectron Spectroscopy |
| SEM | Scanning Electron Microscopy |
| FESEM | Field Emission Scanning Electron Microscope |
| TGA | Thermogravimetric Analyzer |
| PU | Polyurethane |
| EVA | Ethylene-Vinyl Acetate |
| MIP | Mercury Intrusion Porosimeter |