듀얼 경화 접착제 특성 개선에 영향을 미치는 안정화제 효과Effect of the Stabilizer in Improving the Characteristics of a Dure-Cure Adhesive
- Other Titles
- Effect of the Stabilizer in Improving the Characteristics of a Dure-Cure Adhesive
- Authors
- Kim, Eun ji; Kim, Hae Chan; Kwon, Yong Rok; Kim, Jung Soo; Chang, Young Wook; Kim, Dong Hyun
- Issue Date
- Mar-2023
- Publisher
- 한국고분자학회
- Keywords
- dual-cure adhesive; stabilizer; viscosity; storage stability; adhesive strength
- Citation
- POLYMER(KOREA), v.47, no.2, pp 127 - 134
- Pages
- 8
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- POLYMER(KOREA)
- Volume
- 47
- Number
- 2
- Start Page
- 127
- End Page
- 134
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/113318
- DOI
- 10.7317/pk.2023.47.2.127
- ISSN
- 0379-153X
2234-8077
- Abstract
- Thiol/epoxy/acrylate를 기반으로 한 듀얼 경화 접착제는 두 가지 경화 메커니즘을 통한 경화 반응을 수반하도록 설계하였다. 접착제에 안정화제를 투입함으로써 조기 중합을 억제하여 저장안정성이 개선된 듀얼 경화 접착제를 제조할 수 있었다. 설계된 듀얼 경화 반응은 UV/열의 공정을 수반하며 광경화는 365 nm에서 3분간 광조사를 통해 진행하고 순차적으로 열경화는 90 ℃에서 30분간 진행하였다. 안정화제 효과를 연구하기 위해 단일 종 또는 두 가지의 안정화제를 혼합하여 투입하였다. 안정화제 종류 및 함량별 접착제 점도 특성 변화를 3일간 면밀히 관찰하였다. 듀얼 경화 접착제의 전단 접착 강도는 universal testing machine를 사용하여 측정하였다. 저장안정성과 전단접착강도를 고려할 때 안정화제로 pyrogallol 0.3 wt% 및 lauryl gallate 0.1 wt%를 혼성 첨가하였을 때 물성이 가장 우수하였다.
A thiol/epoxy/acrylate-based dual-cure adhesive is designed to accompany a curing reaction via two curing mechanisms. The addition of a stabilizer to the adhesive is shown to provide a dual-cure adhesive with improved storage stability by suppressing premature polymerization. The dual-curing reaction entails a UV/heating process, wherein the photo-curing is performed via light irradiation at 365 nm for 3 min, followed by thermal-curing at 90 celcius for 30 min. In addition, the effect of the stabilizer is studied by the addition of either a single species or a mixture of two stabilizers, and the changes in the viscosity of the adhesive according to stabilizer type and content are closely monitored for 3 days. The adhesive strength of the dual-curing adhesive is measured using a universal testing machine. The optimum storage sta-bility and adhesive strength are obtained when 0.3 wt% pyrogallol and 0.1 wt% lauryl gallate are used as a mixed stabilizer.
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