화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.22, No.3, 364-373, May, 1998
Export Citation
아크릴계 4원공중합체 및 이들과 염화비닐-초산비닐 공중합체와의 블렌드의 점착물성
Pressure Sensitive Adhesive Properties of Acrylic Quarternary Copolymers and Their Blends with Poly(vinyl chloride-co-vinyl acetate)
서관호, 고영철, 이석기
초록
2-에틸헥실아크릴레이트(2-EHA)와 n-부틸아크릴레이트 (BA)를 주단량체로 하고, 에틸아크릴레이트(EA)와 비닐아세테이트 (VAc)를 공단량체로 하는 4원공중합체 (PEBEVs)를 제조한 뒤 이들의 점착물성을 조사하였다. 또한 PEBEVs와 염화비닐-VAc공중합체(PVCVAc)와의 블렌드의 점착물성도 함께 조사하였다. PEBEVs의 유리전이온도 (Tg)는 주단량체의 함량에 따라 감소하였다. 또한 주단량체의 함량이 증가할수록 tack은 증가하였지만 유지력은 오히려 감소하였다. 한편, 박리력의 경우에는 주단량체의 함량이 15 wt%일 때까지 증가하다가 그 이후는 감소하였다. 블렌드의 점착물성 시험결과 PVCVAc의 함량증가에 따라 점착성은 감소하였으며 유지력과 박리력은 증가하다가 다시 감소하는 것으로 나타났다. 또한 이들의 박리후 파괴모드는 모두 계면파괴의 형태임을 알았다.
Quaternary polymers(PEBEVs) of 2-ethylhexyl acrylate (2-EHA), n-butylacrylate(BA) and ethyl acrylate (EA), vinyl acetate (VAc) were synthesized. The blend of PEBEVs and poly(vinyl chloride-co-vinyl acetate) (PVCVAc) were prepared by solution blending. Pressure sensitive adhesion properties of acrylic solution type quaternary polymers and their blends with PVCVAc were investigated. Glass transition temperature (Tg) of PEBEVs decreased with increasing the contents of main monomer (2-EHA and BA). In adhesive properties of PEBEVs, tackiness increased and holding power decreased with increasing the contents of main monomer. On the other hands, peel strength increased with increasing the contents of main monomer up to 15 wt% and then decreased at further higher contents of main monomer. Tackiness of blends decreased with increasing the contents of PVCVAc. Holding power and peel strength increased with increasing the contents of PVCVAc up to 15 wt% and 5 wt%, respectively and then gradually decreased at further higher contents of PVCVAc. In peel test, interfacial failure was occured in each blends.
Keywords:PEBEV;PVCVAc;blend;tackiness;peel strength
  1. Satas D, "Handbook of Pressure Sensitive Adhesive Technology," 2nd ed., Ch 2-3, Van Nostrand Reinhold, New York (1989)
  2. Bemmels CW, "Pressure Sensitive Tapes and Labels Handbook of Adhesives," van Nostrand Reinhold, New York (1977)
  3. Shecut WH, Day HH, U.S. Patent, 3,965 (1845)
  4. Bae JS, Park EK, Park HS, Pyoun MS, Polym.(Korea), 17(2), 203 (1993)
  5. Aubrey DW, Ginosatis SJ, Adhesion, 12, 189 (1981)
  6. Shoraka F, "Adhesion and Heat of Peeling of Pressure Sensitive Tapes," Ph.D. Thesis, State Univ. of New York at Buffalo, May (1979)
  7. Sarka A, J. Ind. Chem., 56, 1157 (1979)
  8. Krus G, Rollman KW, Gray RA, J. Adhes., 10, 221 (1979)
  9. Mizumachi H, J. Appl. Polym. Sci., 30, 2675 (1985) 
  10. Zosel A, Adhesion, 3, 14 (1986)
  11. Dow J, Gainsly M, "Adhesion and Adhesives Fundamentals and Practice," 1st Ed., p. 127, New York (1954)
  12. Clair DJ, Adhes. Age, 17, 30 (1980)
  13. Fity Genanta DM, Paint Tech., 29, 26 (1965)
  14. Greenman J, Montgomery RH, Adhes. Age, 12, 28 (1969)
  15. Duncan RE, Bergerhouse JE, Adhes. Age, 17, 37 (1980)
  16. Dow J, Proc. Inst. Rubber Ind., 1, 105 (1954)
  17. Kamagata K, Saito T, Toyama M, J. Adhes., 2, 279 (1970)
  18. Tackiness Tape, Test Method for Tackiness Sheet, JISZ 0237 (1980)
  19. "Standard Test Method for Holding Power of Pressure Sensitive Tapes," Annual Book of ASTM Standards, ASTM, Philadelphia, PA, vol. 15, ASTM D3654 (1991)
  20. Satas D, "Handbook of Pressure Sensitive Adhesive Technology," 2nd ed., p. 61, Van Nostrand Reinhold, New York (1989)
  21. Olabisi O, Robeson IH, Shaw MT, "Polymer-Polymer Miscibility," p. 235, Academic Press, New York (1979)
  22. Min KE, Lim JC, Seo WY, Kwon HK, J. Appl. Polym. Sci., 51(8), 1521 (1994)