The composite material 27, wherein the polymer blend comprises the polymer having a chemical element composition that is different to that of the fiber in an amount of {HEAD ~ at least 50%} of {TAIL ~ the polymer blend} 
of
The composite material 27 , wherein the polymer blend comprises the polymer having a chemical element composition that is different to that of the fiber in an amount of { HEAD ~ at least 50 % } of { TAIL ~ the polymer blend }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL