10a SO•m ..: '"'.,.•.• •.•"•-"7 ..... :t ß: •. ß 10b 5-0tam • .:• Figure 10. Fractures of 3-hr bleached hair in water showing cuticle peeling
FRACTOGRAPHY OF HUMAN HAIR 463 IOO 8O 60' 40 20. % ELONGATION PLATEAU FORCE • 20 40 60 80 I00 %RH Figure 11. Stress/strain parameters vs. relative humidity
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