화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.41, No.2, 331-338, March, 2017
DOI10.7317/pk.2017.41.2.331  Export Citation
자외선 경화형 아크릴계 점착제의 단량체 및 올리고머 함량이 실크 스크린의 인쇄성 및 점착력에 미치는 영향
Effects of Acrylic Monomers and Oligomer Contents on the Silk Screen Printability and Adhesion of UV Curing Acrylic Adhesive
조민정, 강호종, 김동복†
  • 광에너지소재연구센터, 고분자공학과 단국대학교
Min-Jeong Cho, Ho-Jong Kang, and Dong-Bok Kim†
  • Dept. of Polymer Science and Engineering, Center for Photofunctional Energy Materials, Dankook University, Yongin, Gyeonggi 16890, Korea
E-mail:
초록
자외선 경화형 아크릴계 단량체의 함량을 조절하여 디스플레이 모듈 접합에 사용할 수 있는 점착제를 중합하고 점착 물성 및 실크스크린 인쇄성을 평가하였다. 2-ethylhexyl acrylate(2-EHA)와 아크릴 산(AA) 93:7 비율을 기본처방으로 하여 점착력을 갖도록 하였으며, 기본 처방에 스크린 탈착성 향상을 위한 butyl acrylate(BA), 점착력 향상을 위해 2-hydroxyethyl acrylate(2-HEA)와 tetrahydrofurfuryl acrylate(THFA)를 각각 추가하였다. 기본처방에서 BA의 함량이 7 phr 이상일 때 타래길이는 급격히 감소하고 점착력은 증가하였다. 2-HEA가 3 phr 이상에서 접촉각은 작아지고 폴리카보네이트(PC)에서의 점착력이 감소하는 경향을 보였다. 실크스크린 인쇄 시 직진성과 인쇄퍼짐을 개선하기 위해 THFA를 시럽에 첨가함에 따라 2-HEA가 14 phr의 경우, 점착제의 인쇄성이 저하되는 것으로 나타났다. 결과적으로 기본 처방에 BA 7 phr, 2-HEA 3 phr 및 THFA 7 phr를 첨가했을 때 인쇄성이 가장 양호하였다.
For application to display module junction, silk screen printing based on UV-curable acrylic adhesive was studied. Monomers were based on 2-ethylhexyl acrylate (2-EHA) and acrylic acid (AA) 93:7, butyl acrylate (BA), 2-hydroxyethyl acrylate (2-HEA) and tetrahydrofurfuryl acrylate (THFA) added for screen detachability and adhesion, respectively. When the ratio of BA in monomers was added above 7 phr, adhesive was less smeared the screen and spreading length of adhesive decreased, and its adhesion increased. As 2-HEA was added above 3 phr, contact angle decreased and peel strength also decreased on polycarbonate (PC) substrate. When 2-HEA ratio was 14 phr with THFA was added for screen printability include linearity and printing width, the printability of adhesive showed to decrease. As a result, BA 7 phr, 2-HEA 3 phr, and THFA 7 phr with based monomers had good printability.
Keywords:UV curing;silk screen;adhesive;acrylic monomer;printability
  1. Sung IK, Park GH, Gong WS, Park SH, J. Adhes. Interface, 15, 176 (2014)
  2. Park ES, Park JW, Kim HJ, Polym. Sci. Technol., 23, 48 (2012)
  3. Athijayamani A, Ganesamoorthy R, Loganathan KT, Sidhardhan S, Polym. Korea, 40(1), 1 (2016)
  4. Park CH, Kim HJ, Polym. Sci. Technol., 26, 314 (2015)
  5. Baek SS, Jang SJ, Lee JH, Kho DH, Lee SH, Hwang SH, Polym. Korea, 38(2), 199 (2014)
  6. Baek SS, Jang SJ, Lee SW, Hwang SH, Polym. Korea, 38(5), 682 (2014)
  7. Yoon GS, Shin CH, Min BG, Elast. Compos., 24, 309 (1989)
  8. Piglowski J, Kozlowski M, Rheol. Acta, 24, 519 (1985)
  9. Kim SJ, Master’s Thesis, KAIST, Korea (2012).
  10. Park J, Kim C, Korean Chem. Eng. Res., 48(3), 397 (2010)
  11. Kim DB, Polym. Korea, 37(2), 184 (2013)
  12. Subedi DP, The Himalayan Physics, vol II, 3 (2011).
  13. Chang MC, Mao CL, Vargas RR, U.S. Patent 4,564,664 (1986).
  14. Krampe SE, Moore CL, Taylor CW, U.S.Patent 4,732,808 (1988).