| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Control of the cytotoxicity level of Tacky-Free Polyurethanes Pressure-Sensitive Adhesives for Minimal health and safety issues |
| 초록 |
Polyurethane pressure-sensitive adhesives (PU-PSAs) with satisfactory tack, cohesion, and removability were newly developed through the synthetic process by reacting methylene diisocyanate, poly(ethylene glycol) (PEG), and a 1,4-butanediol chain extender based on the different HDI/HDI trimer ratios. The sticking properties of PU-PSAs depended on both the HDI/HDI trimer ratio and crosslinking-agent composition in the formulation. The differences in the crosslinking-density significantly affected the cohesion, adhesion, and tack in PU-PSA. The formulation of 50 wt% 600PEG and 50 wt% crosslinking-agent and an HDI/HDI trimer ratio of 1.0 led to the optimal balance between the adhesion and cohesion properties owing to the sufficient tack, high 180-peel strength, and good cohesion. PU-PSAs formulation with cell viabilities over 90% in a cytotoxicity test could be considered as a novel non-cytotoxic excellent candidate material for as a completely removable PSA in labels and medical patches. |
| 저자 |
김주원, 서민지, 임원빈, 민진규, 배지홍, 허필호
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| 소속 |
부산대 |
| 키워드 |
polymer; polyurethane; pressure-sensitive adhesives; tacky-free; peel; adhesion
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| E-Mail |
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