Modifications Caused by Enzyme-Retting and Their Effect on Composite Performance

Table 4

Interface and tensile strengths of enzyme-retted flax fiber composites*.

Enzyme exposure	Fiber volume fraction	Pullout	Specific ILSS	Specific tensile modulus	Specific tensile strength
(h)	(%)	(MPa)	(MPa)	GPa/(g/cm^3)	MPa/(g/cm^3)
0	38	12.21 b	9.45 b	2.34 a	54.66 b
10	39	17.07 a	11.32 a	2.07 a	48.54 b
22	34	15.74 a	9.57 b	2.18 a	71.46 a
46	37	12.53 b	10.36 a, b	2.76 a	70.91 a

*Values followed by different letters within columns are significantly different at 𝑃≤0.05.