Fibers Composite materials 92 Fibrous composites 85 Mechanical properties 60 Testing 37 Composite material 25 Plant fibers 23 Papermaking 22 Polymeric composites 21 Noise control 19 Kenaf 18 Recycling (Waste, etc.) 10 Biopolymers 9 Thermosetting composites 8 Absorption of sound 7 Biodegradation 6 Laminated materials 6 Coir fiber 5 Force and energy 4 Oil palm 4 Polystrene 4 Reinforced thermoplastics 4 Waste products 4 Design and construction 3 Plastics 3 Polyesters 3 Powders 3 Refuse and refuse disposal 3 Solid-liquid interfaces 3 Surface chemistry 3