Issue

Vol. 26 No. 13 (2014): Vol 26 Issue 13

Copyright (c) 2014 AJC

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Effect of Moisture Content on Foaming Behaviour of Poly(vinyl alcohol) During Thermal Foaming Process

https://doi.org/10.14233/ajchem.2014.15972
H. Shi
College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, P.R. China
Q. Wang
State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
L. Li
State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
W.B. Meng
3College of Energy Resources, Chengdu University of Technology, Chengdu 610059, P.R. China

Corresponding Author(s) : Q. Wang

haoshi@cdut.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 13 (2014): Vol 26 Issue 13

Abstract

A polar poly(vinyl alcohol) foam was studied as a function of water content by thermal processing method in present study. The effect of moisture on the melting behaviour of poly(vinyl alcohol) as well as the mechanism of cell nucleation and bubble growth were investigated. The results showed that the water in modified poly(vinyl alcohol) could act as plasticizer to realize the thermal processing of poly(vinyl alcohol) at the early plasticization stage and then volatilize into bubbles in poly(vinyl alcohol) matrix as the blowing agent at the subsequent foaming stage. With the increase of the initial water content, more blowing agent diffused from poly(vinyl alcohol) matrix into the cells due to the increased pressure drop (DPw), leading to the bubble expansion and the decrease of the apparent density of poly(vinyl alcohol) foam. When the initial water content was 22.7 wt % and the foaming temperature was 180 °C, poly(vinyl alcohol) foam with relatively uniform cell structure could be obtained.

Keywords

Poly(vinyl alcohol) foam Water blowing agent Thermal processing Foaming mechanism
Shi, H., Wang, Q., Li, L., & Meng, W. (2014). Effect of Moisture Content on Foaming Behaviour of Poly(vinyl alcohol) During Thermal Foaming Process. Asian Journal of Chemistry, 26(13), 3840–3844. https://doi.org/10.14233/ajchem.2014.15972
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. N.J. Mills, Polymer Foams Handbook: Engineering and Biomechanics Applications and Design Guide, Butterworth-Heinemann Publisher (2007).
  2. B.G. Kim and D.G. Lee, J. Mater. Process. Technol., 201, 716 (2008); doi:10.1016/j.jmatprotec.2007.11.143.
  3. H.S. Tsay and F.H. Yeh, Appl. Acoust., 69, 778 (2008); doi:10.1016/j.apacoust.2007.04.007.
  4. F.L. Marten, US Patent 4675360 (1987).
  5. M.S. Timmers, N. Graafland, A.T. Bernards, R.G.H.H. Nelissen, J.T. van Dissel and G.N. Jukema, Wound Repair Regen., 17, 278 (2009); doi:10.1111/j.1524-475X.2009.00458.x.
  6. X. Wang, Y.S. Chung, W.S. Lyoo and B.G. Min, Polym. Int., 55, 1230 (2006); doi:10.1002/pi.2068.
  7. H. Höfelmnn, R. Braum and H.K. Karl, US Patent 3190843 (1965).
  8. T.Q. Zhu, China Patent CN 1095387A (1994).
  9. P. Delvaux, N. Lesmerises and D. Poisson, US Patent 5360771 (1994).
  10. V.I. Lozinsky and L.G. Damshkaln, J. Appl. Polym. Sci., 82, 1609 (2001); doi:10.1002/app.2000.
  11. V.I. Lozinsky, L.G. Damshkaln, I.N. Kurochkin and I.I. Kurochkin, Colloid J., 67, 589 (2005); doi:10.1007/s10595-005-0137-x.
  12. T.J. Smith, J.E. Kennedy and C.L. Higginbotham, J. Mater. Sci. Mater. Med., 20, 1193 (2009); doi:10.1007/s10856-008-3670-4.
  13. N. Chen, L. Li and Q. Wang, Plast. Rub. Compos., 36, 283 (2007); doi:10.1179/174328907X237575.
  14. Q. Wang, L. Li, N. Chen, China Patent CN 100,339,519C (2007).
  15. H.A. Pushpadass, G.S. Babu, R.W. Weber and M.A. Hanna, Packag. Technol. Soc., 21, 171 (2008); doi:10.1002/pts.809.
  16. J.C. Schuber and E.C. LeDuc, US Patent 4455272 (1984).
  17. J.Y. Cha, D.S. Chung, P.A. Seib, R.A. Flores and M.A. Hanna, Ind. Crops Prod., 14, 23 (2001); doi:10.1016/S0926-6690(00)00085-6.
  18. O. Deseke, J. Meyke and A. Pfeiffer, US Patent 5567370 (1996).
  19. J. Pallay, P. Kelemen, H. Berghmans and D. Van Dommelen, Macromol. Mater. Eng., 275, 18 (2000); doi:10.1002/(SICI)1439-2054(20000201)275:1<18::AID-MAME18>3.0.CO;2-3.
  20. L.M. Matuana and F. Mengeloglu, J. Vinyl. Addit. Technol., 8, 264 (2002); doi:10.1002/vnl.10373.
  21. X.B. Peng, L. Li. and Q. Wang, Chin. Plast. Ind., 36, 33 (2008) (in Chinese).
  22. Q. Wang, L. Li and H. Shi, China Patent ZL 200710049955.6 (2008).
  23. V. Kumar and N.P. Suh, Polym. Eng. Sci., 30, 1323 (1990); doi:10.1002/pen.760302010.
  24. C.A. Lin and T.H. Ku, J. Mater. Process. Technol., 200, 331 (2008); doi:10.1016/j.jmatprotec.2007.08.057.
  25. J.H. Han and C. Dae Han, Polym. Sci. Polym. Phys., 28, 711 (1990); doi:10.1002/polb.1990.090280509.
  26. J.S. Colton and N.P. Suh, Polym. Eng. Sci., 27, 500 (1987); doi:10.1002/pen.760270704.
  27. K.A. Arora, A.J. Lesser and P.J. Mccarthy, Macromolecules, 31, 4614 (1998); doi:10.1021/ma971811z.
Read More

Author Biography

H. Shi, College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, P.R. China

 

 

Download
PDF
Statistic
Read Counter : 0 Download : 0