| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Effect of Crosslinking Condition on Halochromic Properties and Water Resistance of Poly(vinyl alcohol) Films |
| 초록 |
The novel poly(vinyl alcohol) (PVOH) indicator films were fabricated using a three-step process: preparing pH indicating cellulose nanofibers (pH-CNFs) by covalently bonding of neutral red (NR) to TEMPO-oxidized CNFs, and incorporating them into PVOH, the chemical crosslinking of PVOH using poly(acrylic acid) (PAA) and their heat treatment to enhance the crosslinking reaction between PVOH and PAA. The effect of different amounts of PAA (5, 10, 15 and 20 wt.%) as a crosslinking agent, heat treatment temperature (120, 150 and, 170°C) as well as heat treatment time (15, 30 and, 45 min) on halochromic properties and water-resistance of PVOH films were investigated. The results indicated that increasing the amount of PAA had a negative effect on the halochromic properties despite improving the water resistance of the PVOH films. Water-resistance in all films increased with increasing time and temperature of heat treatment. |
| 저자 |
Hossein Khanjanzadeh1, 박병대1, Hamidreza Pirayesh2
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| 소속 |
1경북대, 2Department of Wood and Paper Science |
| 키워드 |
crosslinking agent; poly(vinyl alcohol); heat treatment; halochromic properties; poly(acrylic acid).
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| E-Mail |
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