Article
  • Baroplastic Process of PBA/PS/Si Blend Prepared by Heterocoagulation
  • Lee KH, Ryu SW
  • Heterocoagulation으로 제조된 PBA/PS/Si 블렌드의 압력가소성
  • 이광희, 류상욱
Abstract
Baroplastic poly(butyl acrylate) (PBA)/polystyrene (PS) blends were prepared by mixing PBA and PS emulsions synthesized by cationic and anionic surfactant, respectively. Interestingly, the heterocoagulation of nanoparticles have found to be affected strongly by emulsion concentration but the blends have been prepared with almost same compositions regardless of the amount of reactants. Utilizing this method, PBA/PS/Si hybrid nano-blends were prepared successfully via electrostatic attraction forces between PBA, PS and silica nanoparticles. The hybrid nano-blend having 2 or 5 wt% of silica was then processed to a semi-transparent film at 25 ℃ under 13.8 MPa for 10 min, which showed 3.0 MPa of tensile strength and 25 MPa of elastic modulus. Therefore, the heterocoagulation technique can be used for preparing baroplastics with uniform compositions of polymer and silica nanoparticles.

양이온성 및 음이온성 계면활성제로 합성된 poly(butyl acrylate)(PBA), polystyrene(PS) 에멀젼을 다양한 농도로 혼합하여 높은 수율의 압력가소성 고분자 블렌드로 제조하였다. 이들 입자간의 heterocoagulation은 각 에멀젼의 농도에 크게 의존하였지만, 일정한 비율의 음이온과 양이온 사이에서만 진행되었고, 사용된 고분자의 양에 상관없이, 거의 균일한 조성의 블렌드가 얻어졌다. 비슷한 방법을 이용하여 음이온성 PBA와 양이온성 PS 나노입자에 음이온성 실리카 나노입자를 정전기적으로 첨가함으로써 정량적인 PBA/PS/Si 블렌드를 제조하였다. PBA/PS/Si 블렌드는 25 ℃, 13.8MPa, 10분의 조건에서 압축성형으로 가공되었으며, 2 혹은 5 wt%의 실리카가 첨가된 시편의 경우, 반투명의 필름형상으로 성형되어 3.0 MPa의 인장강도와 25MPa의 탄성계수를 얻을 수 있었다.

Keywords: emulsion; blend; heterocoagulation; baroplastic; silica nanoparticle.

References
  • 1. Mason JA, Sperling LH, Polymer Blends and Composites, Plenum Press, New York (1976)
  •  
  • 2. Chanda M, Roy SKIndustrial Polymers, Specialty Polymers, and Their Applications, CRC Press, New York (2009)
  •  
  • 3. Walters MH, Keyte DN, Trans. Inst. Rubber Ind., 38, 40 (1962)
  •  
  • 4. Curry JE, in Polymer Blends and Alloys, Folkes MJ, Hope PS, Editors, Blackie Academic & Professional, Glasgow, Chapter 2, 7 (1993)
  •  
  • 5. Bains M, Balke ST, Reck D, Horn J, Polym. Eng. Sci., 34(16), 1260 (1994)
  •  
  • 6. Blackley DC, Charnock RC, J. Inst. Rubber Ind., 7, 60 (1973)
  •  
  • 7. Guyot A, Landfester K, Schork FJ, Wang C, Prog. Polym.Sci., 32, 1439 (2007)
  •  
  • 8. Keskkula H, Paul DRin Rubber Toughened Engineering Plastics, Collier AA, Editor, Chapman & Hall, London, Chapter 5, 136 (1994)
  •  
  • 9. Chun YS, Kyung YJ, Jung HC, Kim WN, Polymer, 41(24), 8729 (2000)
  •  
  • 10. Khan F, Czechura K, Sundararajan PR, Eur. Polym. J., 42, 2899 (2006)
  •  
  • 11. Mawson S, Kanakia S, Johnston KP, Polymer, 38(12), 2957 (1997)
  •  
  • 12. Lin IH, Liang PF, Tan CS, J. Supercrit. Fluids, 51(3), 384 (2010)
  •  
  • 13. Hajduk DA, Urayama P, Gruner SM, Erramilli S, Register RA, Brister K, Fetters LJ, Macromolecules, 28(21), 7148 (1995)
  •  
  • 14. Ruzette AVG, Banerjee P, Mayes AM, Russell TP, J. Chem. Phys., 114(18), 8205 (2001)
  •  
  • 15. Pollard M, Russell TP, Ruzette AV, Mayes AM, Gallot Y, Macromolecules, 31(19), 6493 (1998)
  •  
  • 16. Cho JH, Wang ZG, Macromolecules, 39(13), 4576 (2006)
  •  
  • 17. Ryu SW, Kim MJ, Lee KH, Polym. Sci. Technol., 19(4), 278 (2008)
  •  
  • 18. Ryu DY, Lee DJ, Kim JK, Lavery KA, Russell TP, Han YS, Lee CH, Thiyagarajan P, Phys. Rev. Lett., 90, 235501 (2003)
  •  
  • 19. Lee DH, Kim HJ, Kim JK, Macromol. Symp., 240, 123 (2006)
  •  
  • 20. Ahn H, Ryu DY, Kim Y, Kwon KW, Lee J, Cho J, Macromolecules, 42(20), 7897 (2009)
  •  
  • 21. Cho J, Shin K, Cho KS, Seo YS, Satija SK, Ryu DY, Kim JK, Macromolecules, 41(3), 955 (2008)
  •  
  • 22. Gonzales-Leon JA, Acar MH, Ryu SW, Ruzette AV, Mayes AM, Nature(London)., 426, 424 (2003)
  •  
  • 23. Gonzalez-Leon JA, Ryu SW, Hewlett SA, Ibrahim SH, Mayes AM, Macromolecules, 38(19), 8036 (2005)
  •  
  • 24. Lee KH, Ryu SW, Macromol. Res., 20(12), 1294 (2012)
  •  
  • 25. Okubo M, Miyachi N, Liu Y, Colloid Polym. Sci., 269, 125 (1991)
  •  
  • 26. Okubo M, Miyachi N, Liu Y, Colloid Polym. Sci., 272, 270 (1994)
  •  
  • 27. Okubo M, Liu Y, Colloid Surf. A., 153, 609 (1999)
  •  
  • 28. Kim MJ, Choi YD, Ryu SW, Polym.(Korea), 32(6), 573 (2008)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2012; 36(6): 727-732

    Published online Nov 25, 2012

  • Received on May 8, 2012
  • Accepted on Jun 29, 2012