Study on the Morphologies and Formational Mechanism of Poly(hydroxybutyrate-co-hydroxyvalerate) Ultrafine Fibers by Dry-Jet-Wet-Electrospinning

Table 1

The components and parameters of electrospinning solutions.

No.	PHBV; (g)	Concentration; (wt%)	Chloroform; (g)	Ethanol; (g)	Viscosity*; (Pa·s)	Conductivity; (μS/cm)	Surface tension; (mN/m)
1	0.8	4	19.2	0	0.151	Not detected**	27.29
2	1.2	6	18.8	0	0.546	Not detected**	27.51
3	1.6	8	16.4	2	1.097	0.89	29.17

*The viscosity was measured at shearing rate of 100/s.
**The conductivity was lower than 0.001 𝜇S/cm and could not be detected.