High modulus grade

Continuous fibers that are oriented parallel to the tube axis will be used possible fiber materials are glass, and carbon in standard-, intermediate-, and high-modulus grades. The matrix material is to be an epoxy resin, and the maximum allowable fiber volume fraction is 0.60. This design problem calls for us to do the following ... 

For the global advanced composites market, the average cost of high-performance fibre reinforcements (carbon, aramid, high modulus polyethylene, boron, R/S/T-glass and some E-glass) is estimated from 5.5 to 6 per kg. This moderate price is due to the decrease in the carbon fibre price. Some grades could fall to less than 10/kg in the short or medium term. 

After development, modifications can also be more easily implemented. Lor example, flame retardant (LR) grades of PAB s have been developed for the business machine and electronics markets. These materials combine high modulus, heat resistance, and impact strength in addition to LR. 

---