Glass fiber roving
View Patent ↗A strand based on glass fibers with a τ/μ 2 ratio greater than 9, where τ is the yardage of the strand in tex and μ is the filament diameter in μm. The strand has at least 6000 filaments with a yardage greater than 1200 tex and a filament diameter greater than 11 μm.
1. A strand based on glass fibres having a τ/μ 2 ratio greater than 9, where τ is yardage of the strand in tex and μ is diameter of the filaments in μm, and
wherein the strand includes at least 6000 filaments, with a yardage greater than 1200 tex and a filament diameter greater than 11 μm.
2. A strand according to claim 1 , wherein the strand comes from a single bushing.
3. A strand according to claim 2 , wherein the strand is a roving directly wound under the bushing.
4. A strand according to claim 1 , wherein the strand comprises 8000 filaments each 12 μm in diameter and has a yardage of 2400 tex.
5. A strand according to claim 1 , wherein the strand comprises 8000 filaments each 17 μm in diameter and has a yardage of 4800 tex.
6. A strand according to claim 1 , wherein the strand comprises 8000 filaments each 24 μm in diameter and has a yardage of 9600 tex.
7. A strand according to claim 1 , wherein the strand is completely made of glass filaments.
8. A strand according to claim 1 , wherein the strand is a composite and is made of comingled glass filaments and thermoplastic filaments.
9. A composite material comprising the strand according to claim 1 .
10. A wind machine blade comprising the strand according to claim 1 .