Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Effect of Mercaptoethanol on the Wet Spinning of Wheat Gliadin Fiber

습식방사를 통한 밀 글리아딘 섬유 제조에 머캅토에탄올이 미치는 영향

  • Kwak, Hyo Won (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Yun, Na Kyong (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Lee, Da Jeong (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Lee, Ki Hoon (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University)
  • 곽효원 (서울대학교 바이오시스템.소재학부) ;
  • 윤나경 (서울대학교 바이오시스템.소재학부) ;
  • 이다정 (서울대학교 바이오시스템.소재학부) ;
  • 이기훈 (서울대학교 바이오시스템.소재학부)
  • Received : 2012.05.17
  • Accepted : 2012.06.10
  • Published : 2012.06.30
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Abstract

Wheat gliadin is an ethanol-soluble fraction of wheat protein. It has several intramolecular disulfide bonds, which are cleavable by reductants such as 2-mercaptoethanol. We added 2-mercaptoethanol into the dope solution prepared by dissolving wheat gliadin in DMSO. The dope solution was spun into an acetone/methanol coagulation bath. The viscosity of the dope solution was increased and the spinnability was also improved by the addition of 2-mercaptoethanol. A maximum draw ratio of 3.5 was achieved with the addition of 2-mercaptoethanol whereas, that of non-added fiber was only 2. Furthermore, the mechanical properties of the fiber were slightly improved by the addition of 2-mercaptoethanol. These positive effects are due to the increase of chain entanglement by the cleavage of intramolecular disulfide bonds.

Keywords

References

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