INVESTIGATION OF COAGULANT TYPE EFFECT ON WET–SPINNING PROCESS OF REGENERATED SILK FIBROIN

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SIADAT S.A.; MOKHTARI J.

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Journal: AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR) Year:2017 | Volume:49 | Issue:2 Page(s): 379-388

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Title

INVESTIGATION OF COAGULANT TYPE EFFECT ON WET–SPINNING PROCESS OF REGENERATED SILK FIBROIN

Author(s)

SIADAT S.A. | MOKHTARI J. | Issue Writer Certificate

Keywords

REGENERATED SILK FIBROINQ1

N - METHYL MORPHOLINE N – OXIDEQ1

COAGULANTSQ1

WET SPINNABILITYQ1

TENACITYQ1

Abstract

Re-generated silk fibroin (RSF) with various concentrations including 8, 10, 12.5 and 13% (w/w), was dissolved in N-methyl morpholine N-oxide (NMMO) to prepare spinning solutions. The effect of several COAGULANTS such as methanol, ethanol and 1-propanol, and temperatures of spinning including 95, 110 and 120oC, on the WET SPINNABILITY of the silk fibroin solutions were investigated. TENACITY at break of undrawn fibers, which were produced by various concentrations and COAGULANTS, were measured. Bead free fibers with high TENACITY and elongation at break (1.6 cN/dtex and 34.25% respectively) were produced at concentration of 8% (w/w), temperature of 95oC and by presenting of methanol coagulant. Also by increasing of concentrations from 8% to 10, 12.5 and 13%, the TENACITY was decreased to 0.81, 0.70 and 0.20 cN/dtex, respectively. TENACITY of fibers were obtained in 1-propanol (0.6 cN/dtex) was lower than those in ethanol and methanol coagulation bath, 0.8 and 1.6 cN/dtex, respectively. These results were shown that chemical structure type of coagulant strongly influenced the WET SPINNABILITY of undrawn regenerated silk fibers.

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APA: Copy

SIADAT, S.A., & MOKHTARI, J.. (2017). INVESTIGATION OF COAGULANT TYPE EFFECT ON WET–SPINNING PROCESS OF REGENERATED SILK FIBROIN. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 49(2 ), 379-388. SID. https://sid.ir/paper/165825/en

Vancouver: Copy

SIADAT S.A., MOKHTARI J.. INVESTIGATION OF COAGULANT TYPE EFFECT ON WET–SPINNING PROCESS OF REGENERATED SILK FIBROIN. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)[Internet]. 2017;49(2 ):379-388. Available from: https://sid.ir/paper/165825/en

IEEE: Copy

S.A. SIADAT, and J. MOKHTARI, “INVESTIGATION OF COAGULANT TYPE EFFECT ON WET–SPINNING PROCESS OF REGENERATED SILK FIBROIN,” AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), vol. 49, no. 2 , pp. 379–388, 2017, [Online]. Available: https://sid.ir/paper/165825/en

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