
Do Hyeok Lee*,**,#, Jungmi Cheon*,#, Boo Young Jeong*, So-Young Park*, Jae hwan Chun*,†
, and Won-Ki Lee**,† 
*Korea Institute of Footwear & Leather Technology,
Busan 47154, Korea
**Department for Polymer Engineering, Pukyong National
University, Busan 48547, Korea
*한국신발피혁연구원, **부경대학교 고분자공학과
This Article2020; 44(3): 318-324
Published online May 25, 2020
Correspondence to*Korea Institute of Footwear & Leather Technology, Busan 47154, Korea
**Department for Polymer Engineering, Pukyong National University, Busan 48547, Korea