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Table 7 Testing results of composite density (unit: g)

From: R&D on glass fiber reinforced epoxy resin composites for superconducting Tokamak

No. M1 (in air) M2 (in water) ΔM = M1 − M2 ρc (g/cm3)
1 10.520 5.010 5.510 1.909
2 7.263 3.565 3.698 1.964
3 14.208 5.771 8.437 1.684
4 10.218 4.753 5.465 1.870
5 10.627 5.267 5.360 1.983
  1. Density of resin is 1.22 g/cm3
  2. Density of filament01 and tape is 2.54 g/cm3
  3. Density of filament02 is 2.65 g/cm3