Basalt
- 2. Presented By: Shahan Akhtar M.Sc. Fiber Tech. 2008-ag-52.U.A.F. BASALT FIBER From Rock To Technical Textile
- 3. OUT-LINE Basalt introduction Manufacturing process Key properties Application Examples
- 4. Introduction known as a rock lava Occurance Basic minerals Cheaper Non-Toxic, Non-Combustible
- 5. Brief History First extrudement of filament. Authentic start of research. Golden era of 1960/70’s. Research eventually became successful. It is in Perestroika, the technology was declassified.
- 6. Chemical composition basalt rock: 2.08 TiO 2 2.10 Na 2 O 4.42 Fe 2 O 3 5.10 MgO 8.50 CaO 9.43 FeO 15.48 Al 2 O 3 51.58 SiO 2 % weight of basalt Chemical compound
- 7. Chemical Name & Structure Al Al Al Al Al
- 8. An overview of the basalt fiber manufacturing process is: Stone crushing Loading and transportation Washed out with water & then dry Material is fed into furnace. Molten material flows into a fore-hearth.
- 9. Platinum alloy “bushing”. A single strand(7-17μ). A water-based sizing Package forming. The untwisted roving, twisted/plied into a yarn, or chopped to a fixed length. Cont.
- 11. 1) Crushed stone, 2)Loading station, 3) Transport system, 4)dry station, 5) Initial melt zone, 6) Secondary controlled heat zone, 7) Filament forming, 8) Sizing applicator, 9) Strand formation, 10) Fiber tensioning, 11) Winding
- 12. Microscopic view of Basalt Fiber
- 13. Properties High tensile strength (breaking strength) Low elongation at break High elastic modulus Density: 2.7 gram/cubic centimeter Low thermal conductivity High sound absorption coefficient
- 14. Cont. Low moisture absorption High specific volume resistance Radiation proof lead equivalent Permanent flame retardant resistance Extraordinary high softening temperature (point): >1200 Celsius degree Operating temperature range: from -260 to 760 Celsius degree
- 15. Chemical properties Low water absorbency Good alkaline resistance Also acid and salt resistance 0.2 H 2 O 6.0 2N NaOH 2.2 2N HCl Chemical stability (loss weight after 3 hours boiled(%))
- 16. 250 500 300 380 750 Maximum Service Temperature °C 2.8 - 3.6 1.5 - 2.0 5.3 4.7 3.1 Elongation at break 70 - 140 230 - 600 83 - 86 72.5 - 75.5 93.1 - 110 Elastic Modulus (GPa) 2900 - 3400 3500 - 6000 4020 - 4650 3100 - 3800 4100 - 4840 Tensile Strength (MPa) 1.45 1.78 2.54 2.54 - 2.57 2.63 - 2.8 Density (g/cm³) Aramid Carbon S-Glass E-Glass Continuous Basalt Properties Comparative technical index between basalt fibers & the other mineral fibers
- 20. Basalt Fiber 3-D Sandwich Fabric Basalt Fiber 3-D Sandwich Fabric high grade yacht. speed train. chemical tanks. wind turbine. core layers of the Radiation protection Architectural decoration. Heat preservation & sound insulation.
- 21. Basalt Fiber Sheet Reinforcement for The bridge tunnel structure The wood reinforced structure beams, colums, plates.
- 22. Basalt Fiber Needled Felt Advanced air filtration system. Poisonous gas and dust filtration systems in chemical industry Filtration, acoustic absorption, heat insulation and vibration proofing system in electronic industry. High temperature resistance, environmental protection automobile mufflers. Heat insulation and acoustic absorption system of vessels and ships.
- 23. Basalt Fiber Sealing Ropes Furnace doors, cover board, success opening, had the hole of the high temperature pressure furnace. Applied in sealing material, which owing the compressibility, the high elastic and the low friction coefficient. Excellent properties of acid alkali resistance in the parts connection or transforming corrosion media.
- 24. Basalt Geo grid They are made up of natural raw material (natural chemical composition provides chemical stability and resistance). They are non inflammable and they can carry out distributed load. The cost is 4-5 times lower than other geo textile material.
- 25. Conclusion Basalt has excellent set of properties in thermal, mechanical, chemical and environmental. Due to low cost they can easily replace many different applications of carbon, asbestos, steel, glass fiber.