Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Study on the Stress Relaxation Behaviors of PET Film in NaOH Solution

NaOH용액중에서 PET필름의 응력완화거동에 관한 연구

  • 전한용 (혜전전문대학 섬유과) ;
  • 최영엽 (한양대학교 공과대학 섬유공학과, 한양대학교 공과대학 섬유공학과) ;
  • 임승순
  • Published : 1988.02.01

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Abstract

The relaxation behaviors of PET film in NaOH solution were investigated in view of chemorheology under the various temperatures and those of the film with draw ratio and temperatures were examined phenomenologically in relation to the decomposition effect of NaOH. As the experimental results, the initial relaxation stress was decreased and relaxation rates rfrb were increased with temperatures at constant draw ratio. The relaxation spectra were composed of box and wedge types distribution and the relaxation time t1,t2 from constitutive eq. were shifted to a shorter time side with temperatures.

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