Skip to main content
SpringerLink
Log in

Controlled coagulation of emulsion polymers

  • Published:
JCT Research Aims and scope Submit manuscript

Abstract

Coagulation of latex particles is most often carried out in the diffusion limited aggregation (DLA) regime where the time for coagulation to take place is on the millisecond timescale. This process produces aggregates of low density, irregular shape, and a broad particle size distributions. When the coagulation is carried out in the reaction limited aggregation (RLA) regime, a coagulation time of about 1–120 sec, the system can be controlled by mixing to yield dense, spheroidal aggregates with a very narrow particle size distribution. The important variables in the RLA process for butyl acrylate/methyl methacrylate (BA/MMA) latexes were found to be mixing intensity, latex copolymer composition, and coagulation temperature. Dried aggregates formed in the RLA process were found to have excellent powder flow properties and low dustiness.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Botet, R. and Jullien, R., “Size Distribution of Clusters in Irreversible Kinetic Aggregation,” J. Phys. A: Math. Gen., 17, 2517 (1984).

    Article  Google Scholar 

  2. Botet, R. and Jullien, R., “Hierarchical Model for Chemically Limited Cluster-Cluster Aggregation,” J. Phys. A: Math. Gen., 17, L639 (1984).

    Article  Google Scholar 

  3. Family, F., Meakin, P., and Vicsek, T., “Cluster Size Distribution in Chemically Controlled Cluster-Cluster Aggregation,” J. Chem. Phys., 83, No. 8, 4144 (1985).

    Article  CAS  Google Scholar 

  4. Yusa, M., “Mechanisms of Pelleting Flocculation,” Int. J. Miner. Process, 4, 293 (1977).

    Article  CAS  Google Scholar 

  5. Yusa, H., Hoshino, M., and Isaka, H. (to Kureha Kagaku Kogyo Kabushiki Kaisha) UK Patent GB 2157297 (1988).

  6. Iwasaki, T., Momose, K., and Sakabe, H., “Particle Formation from Polymer Emulsion unders Slow Coagulation Condition,” Kagaku Kogaku Ronbunshu, 16, No. 4, 627 (1990).

    CAS  Google Scholar 

  7. Hopper, M., Patel, R., and Kmiecik-Lawrynowicz, G. (to Xerox Corp.) U.S. Patent 5525452 (1996).

  8. Derjaguin, B. and Landau, L., Acta Physicochim., USSR, 14, 633 (1941).

    Google Scholar 

  9. Vervey, E. and Overbeek, J., Theory of the Stability of Lyophobic Colloids, Elsevier, Amsterdam, the Netherlands, 1949.

    Google Scholar 

  10. von Smoluchowski, M., Bull. Int. Acad. Polon. Sci., Classe Sci. Math. Nat., 184 (1903).

  11. Mills, P., Goodwin, J., and Grover, B., “Shear Field Modification of Strongly Flocculated Suspensions—Aggregate Morphology,” Colloid Polyn. Sci., 269, 949 (1991).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Rohm and Haas Company, P.O. Box 904, 19477-0904, Spring House, PA

    Edward Kostansek

Authors
  1. Edward Kostansek
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kostansek, E. Controlled coagulation of emulsion polymers. J Coat. Technol. Res. 1, 41–44 (2004). https://doi.org/10.1007/s11998-004-0023-1

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11998-004-0023-1

Keywords

Search

Navigation