Tab. 1

Composition of BIO-M"

Fig. 1

Typical stress-strain curve model of hair （a） and the influences of different contents of BIO-M on the tensile curve of damaged hair （b）"

Fig. 2

Effects of different contents of BIO-M on breaking strength （a） and tensile force in yield zone （b） P：*<0.05；**<0.01；***<0.001"

Fig. 3

Contact angle measurements for virgin hair （a）, twice bleached hair （b）, 0.05% BIO-M repaired hair （c）, 0.1% BIO-M repaired hair （d）, and 0.2% BIO-M repaired hair （e） and the increase of hair contact angle after treatment with different contents of BIO-M （f） P：*<0.05；**<0.01；***<0.001"

Fig. 4

The decrease of dry combing work （a） and wet combing work （b） after treatment with different contents of BIO-M P：*<0.05；**<0.01；***<0.001"

Fig. 5

Fluorescent micrographs of untreated virgin white hair （hair surface （a） and hair cross section （c）） and the hair after immersion in TAMRA-SE dyed BIO-M （hair surface （b） and hair cross section （d））"

Fig. 6

Infrared spectra of severely damaged hair and BIO-M repaired hair （a）; integral area of hair surface XPS nitrogen fractional peak before （b） and after （c） BIO-M treatment"

Fig. 7

Schematic diagram of experimental mechanism of constant-elongation elongation （a） and the proportion of intermolecular forces before and after BIO-M treatment （b） P：*<0.05；**<0.01；***<0.001"

Fig. 8

Destruction test with urea: Tensile fracture strength （a） and DSC results （b）"

Fig. 9

Intermolecular forces in virgin hair （a）, damaged hair （b）, and the effect of construction by BIO-M （c）"

Fig. 10

Integral area of carbon fractional peak in hair-surface XPS test before （a） and after （b） BIO-M treatment; Mechanism analysis of hydrophobic surface construction （c）"