About The Journal
  Aims and Scope
  Editorial Board
  Submit a Manuscript 
  Subscription Information
  Guidelines for Publication
  Ethics
Articles & Issues
  Search
  Issue
  Online First
  KJChE on
For Authors
  Instructions to Authors
  Ethical Responsibilities of
  Authors in KJChE
  Ethics in Publishing
  Peer Review Process
  Author's Checklist
  Copyright Transfer Form
Contact us
 
 
 
Issue
Korean Journal of Chemical Engineering,
Vol.32, No.6, 1170-1177, 2015
Application of cross-linked poly(acrylic acid)-poly(styrene-alt-maleic anhydride) core-shell microcapsule absorbents in cement mortars
Hwang K, Jang S, Jung Y, Lee S, Lee JY, Ha KR
We synthesized core-shell microcapsule absorbents with crosslinked poly(acrylic acid) (PAA) as the core and poly(styrene-alt-maleic anhydride) (cPAA-PSMA) as the shell by the precipitation polymerization method for delayed absorption of excess water in cement mortar. To control the shell thickness, cPAA-PSMA capsules were synthesized with the core-to-shell monomer mass ratios of 1 : 0 (cPAA #1), 1 : 0.5 (cPAA-PSMA #2), 1 : 1 (cPAA-PSMA #3), and 1 : 1.5 (cPAA-PSMA #4). The viscosity of the cement paste with cPAA-PSMA #4 absorbent increased slowly until 90minutes after absorbent addition, beyond which it increased rapidly. This suggests that mortars with cPAA-PSMA #4 absorbents can secure up to 90 minutes of working time. Incorporation of 1.0 wt% cPAA-PSMA #4 into cement mortar increased the compressive and flexural strengths by approximately 35% and 22%, respectively, compared to those of cement mortars without absorbents.
Keywords: cPAA-PSMA; Microcapsule; Absorbent; E. Mortar; C. Ccompressive Strength
[References]
  1. Williams DA, Saak AW, Jennings HM, Cem. Concr. Res., 29, 1491, 1999
  2. Rha CY, Seong JW, Kim CE, Lee SK, Kim WK, J. Mater. Sci., 34(19), 4653, 1999
  3. Rha CY, Kim CE, Lee CS, Kim KI, Lee SK, Cem. Concr. Res., 29, 231, 1999
  4. Bunyakan C, Hunkeler D, Polymer, 40(23), 6213, 1999
  5. Bunyakan C, Armanet L, Hunkeler D, Polymer, 40(23), 6225, 1999
  6. Peng J, Zhang JQJ, Chen M, Wan T, Cem. Concr. Res., 35, 527, 2005
  7. Maltais Y, Marchand J, Cem. Concr. Res., 27, 1009, 1997
  8. Knapen E, Gemert DV, Cem. Concr. Res., 39, 6, 2009
  9. Hwang K, Ha K, Korean J. Chem. Eng., 31(5), 911, 2014
  10. Tang CY, Ye SH, Liu HQ, Polymer, 48(15), 4482, 2007
  11. Domone P, Cem. Concr. Res., 28, 177, 1998
  12. Zain MFM, Safiuddin M, Yusol KM, Cem. Concr. Res., 29, 1427, 1999
  13. Jennings HM, Cem. Concr. Res., 30, 101, 2000
  14. Allen AJ, Thomas JJ, Jennings HM, Nat. Mater., 6(4), 311, 2007
  15. Kovler K, Adv. Cem. Res., 10, 81, 1998
  16. Chandra S, Ohama Y, Polymer in Concrete, CRC Press, Boca Raton (1994).
  17. Taylor HFW, Cement Chemistry, 2nd Ed. Thomas Telford Service Ltd., London (1997).
  18. Tennis PD, Jennings HM, Cem. Concr. Res., 30, 855, 2000
  19. Meth PK, Monteiro PJ, CONCRETE: Microstructure, Properties, and Materials, 3rd Ed. McGraw-Hill, New York (2006).
  20. Viehland D, Li JF, Yuan LJ, Li Z, J. Am. Ceram. Soc., 79, 1731, 1996
  21. Johannesson B, Utgenannt P, Cem. Concr. Res., 31, 925, 2001
  22. Lothenbach B, Matschei T, Moschnner G, Glasser FP, Cem. Concr. Res., 38, 1, 2008
  23. Diamond S, Cem. Concr. Res., 30, 1517, 2000
  24. Plank J, Sachsenhauser B, Cem. Concr. Res., 39, 1, 2009
  25. Lee KJ, Byun SH, Song JT, J. Korean Ceram. Soc., 46, 657, 2009
  26. An L, Wang AQ, Chen JM, J. Appl. Polym. Sci., 94(5), 1869, 2004
  27. Huntzinger DN, Eatmon TD, J. Clean Prod., 17, 668, 2009
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.