Korea-Australia Rheology Journal

The Korean Society of Rheology (한국유변학회)
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Boron nitride based processing aids

  • Hatzikiriakos, Savvas G. (Department of Chemical and Biological Engineering, The University of British Columbia) ;
  • Rathod, Nimish (Department of Chemical and Biological Engineering, The University of British Columbia)
  • Published : 2003.12.01
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Abstract

Boron nitride is a new processing aid that is capable of eliminating gross melt fracture in several polymer processing operations. Its combinations with other processing aids i.e. fluoropolymers offer additional possibilities of obtaining enhanced processing aids that may take the processes to rates not realized before. A variety of different such combinations are discussed in this paper. The essential componenets are (1) boron nitride capable of eliminating gross melt fracture and (2) suitable lubricant capable of eliminating surface melt fracture such as stearates for the polyolefin processing and polyethylenes for the processing of fluoropolymers.

Keywords

References

  1. J. Vinyl and Additive Technology v.8 The role of processing aids in the extrusion of molten polymers Achilleos,E.C.;G.Georgiou;S.G.Hatzikiriakos https://doi.org/10.1002/vnl.10340
  2. Dynamics of polymeric liquids Bird,R.B.;R.C.Armstrong;O.Hassager
  3. U.S. patents issued to E.I. Buckmaster,M.D.;D.L.Henry;S.K.Randa
  4. US Patent pending Extrusion aid combinations Hatzikiriakos,S.G.;N.Rathod
  5. Rheol. Acta v.39 The effect of boron nitride on the rheology and processing of polyolefins Kazatckov,I.B.;F.Yip;S.G.Hatzikiriakos https://doi.org/10.1007/s003970000113
  6. Rheol. Acta v.31 Instabilities in viscoelastic flows Larson,R.G. https://doi.org/10.1007/BF00366504
  7. ANTEC2000, Soc. Plastics Engrs v.46 The effect of boron nitride on the processability of metallocene based LLDPE Lee,S.M.;J.G.Kim;J.W.Lee
  8. ANTEC2001, Soc. Plastics Engrs v.45 The effect of boron nitride on the rheological properties and processability of polyethyene Lee,S.M.;J.W.Lee
  9. AIChE J. v.22 Instabilities in polymer processing Petrie,C.J.S.;M.M.Denn https://doi.org/10.1002/aic.690220202
  10. J. Non-Newtonian luid Mech. v.34 Influence of upstream instabilities and wall slip on melt fracture and shark-skin phenomena during silicones extrusion through orifice dies Piau,J.M.;N. EI Kissi;B.Tremblay https://doi.org/10.1016/0377-0257(90)80016-S
  11. J. Rheol. v.30 Wall slip in viscous fluids and influence of materials of construction Ramamurthy,A.V. https://doi.org/10.1122/1.549852
  12. Intern. Polym. Proc. v.X Flow implications in the processing of Teflon resins, Rosenbaum,E.S.G.Hatzikiriakos;C.W.Stewart
  13. ANTEC 98, Soc. Plastics Engrs, Tech. Papers v.44 A new processing additive in the extrusion of fluoropolymers Rozenbaoum,E.E.;S.K.Randa;S.G.Hatzikiriakos;C.W.Stewart;D.L.Henry;M.D.Buckmaster
  14. Polym. Eng. Sci. v.40 Boron nitride as a processing aid for the extrusion of polyolefins and fluoropolymers Rozenbaoum,E.E.;S.K.Randa;S.G.Hatzikiriakos;C.W.Stewart https://doi.org/10.1002/pen.11151
  15. Rheology v.5 Tordella,J.P.;F.R.Eirich(ed.)
  16. Rheology of polymers Vinogradov,G.V.;A.Y.Malkin
  17. ANTEC 99, Soc. Plastics Engrs, Tech. Papers v.45 The effect of boron nitride type and concentration on the rheology and processability of molten polymers Yip,F.;E.E.Rosenbaum;S.K.Randa;S.G.Hatzikiriakos;C.W.Stewart
  18. J Vinyl and Additive Technology v.6 A new processing aid for the extrusion of polyolefins Yip,F.;S.G.Hatzikiriakos;T.M.Clere https://doi.org/10.1002/vnl.10234
  19. ANTEC 2000, Soc. Plastics Engrs v.46 New boron nitride processing aids for the extrusion of molten polymers Yip,F.;S.G.Hatzikiriakos;T.M.Clere