Preparation process of PBAT fiber membrane by melt differential electrospinning

doi:10.19491/j.issn.1001-9278.2022.12.001

Abstract

Abstract:

The melt⁃electrospinning performance of poly （butyleneadipate⁃co⁃terephthalate）（PBAT） was investigated， and the relationship between the melt differential electrospinning process parameters and properties of the resultant PBAT fibers were studied. The results indicated that the fiber diameter decreased and its diameter distribution decreased at first and then tended to increase with an increase in spinning temperature. With an increase in spinning voltage， the fiber diameter decreased and the distribution was uniform. Meanwhile， the mechanical properties of the fiber membranes were improve gradually. The optimal fiber fineness and uniformity were obtained at a spinning distance of 9 cm， a spinning temperature of 260 ºC， and a spinning voltage of 45 kV. The obtained fibers exhibited a diameter of 4.31 μm， a standard diameter distribution deviation of 0.76. The fiber membranes obtained tensile strength of 9.9 MPa and elongation at break of 111.2 %.

Key words: melt electrospinning, poly （butyleneadipate?co?terephthalate）, biodegradation, fiber diameter, ultrafine fiber

CLC Number:

TQ 340.1⁺4

HE Xuetao, ZHANG Yi, MO Zhenyu, LI Changjin, WANG Shuo, YANG Weimin, LI Haoyi. Preparation process of PBAT fiber membrane by melt differential electrospinning[J]. China Plastics, 2022, 36(12): 1-5.

Figures/Tables 7

Fig.1. Diagram of melt differential electrospinning device［19］

实验1	纺丝温度/℃	240	250	260	270	280
实验1	纺丝电压/kV	35
实验2	纺丝温度/℃			260
实验2	纺丝电压/kV	30	35	40	45	-

Tab.1. Experimental variable design

Fig.2. The variation of PBAT fiber morphology and diameter distribution at different spinning temperature

Fig.3. The variation of average fiber diameter at different spinning temperature

Fig.4. The variation of PBAT fiber morphology and diameter distribution under different spinning voltage

Fig.5. The variation of average fiber diameter under different spinning voltage

Fig.6. The variation diagram of mechanical properties of PBAT fiber under different spinning voltage

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