Radiation curing: coatings and composites

• Autorzy: Berejka A. J. , Montoney D. , Cleland M. R. , Loiseau L.
• Języki publikacji: EN

Abstrakty

EN

The initial experiments conducted in the late 1960's at Radiation Dynamics, Inc. (now IBA Industrial, Inc.) showed that by removing the pigment from a radiation curable coating formulation, the same binder system could be used as a matrix system for electron beam (EB) cured fiber reinforced composites. Recently, the binder systems used for EB curable coatings have also been successfully used (without pigments) as the matrices for EB and X-ray cured fiber composites. Insights gained from the development of coatings were translated into desirable properties for matrix materials. For example, understanding the surface wetting characteristics of a coating facilitated the development of a matrix that would wet fibers; the development of coatings that would adhere to rigid substrates as metal while being bent, as for coil coatings, and which would exhibit impact resistance when cured on a metal also imparted impact resistance to cured composite materials. Thermal analyses conducted on the coating binder cured at low energies were consistent with analyses performed on thick cross-sections as used for matrices. The configuration of the final product then dictated the modality of curing, be it low-energy EB for coatings or higher energy EB or X-ray curing for composites. In industrial radiation chemistry, one deals with monomers and oligomers (similar to 102 and similar to 103 to 104 Daltons molecular weight, respectively). Thus, one can approach the development of coating binders or matrix systems as one would approach the synthesis of organic polymers. The desired final material is a fully cured and cross-linked polymer. In contrast, concepts involved in “formulating” are often derived from dealing with high molecular weight polymers (similar to 105 + Daltons) in which intense mechanical mixing is used to bring different ingredients together. When synthesizing a radiation curable coating or matrix system, greater attention is given to microphase compatibility as reflected in the microhomogeneity of the entire material.

Słowa kluczowe

EN

radiation curing; fiber composites; coatings; electron beam; X-ray; matrices

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2010
• Tom: Vol. 55, No. 1
• Strony: 97--106
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Berejka A. J.

autor

Montoney D.

autor

Cleland M. R.

autor

Loiseau L.

• Ionicorp+, 4 Watch Way, Huntington, New York 11743, USA, Tel: [phone], Fax: [phone],

Bibliografia

• 1. Berejka AJ (2003) Electron beam curing of coil coatings. The RadTech Report, (September/October 2003), pp 47–53
• 2. Berejka AJ (2007) Barriers to the commercial acceptance of radiation processing in the manufacture of fiber reinforced composites. In: Proc of SAMPE 2007, June 3–7, 2007, Baltimore, MD, USA
• 3. Berejka AJ (2007) X-ray curing of fiber composites –feasibility study. Co-funded study for the New York State Energy Research and Development Authority. Contract 9097 (November 9, 2007), Albany, NY, USA
• 4. Berejka AJ, Cleland MR, Galloway RA, Gregoire O (2005) X-ray curing of composite materials. Nucl Instrum Methods Phys Res B 241:847–849
• 5. Brenner W, Oliver WF (1967) Commercial aspects of instantaneous radiation cure of reinforced plastics. SPE Journal 23;4:33ff
• 6. Campbell FJ, Brenner W, Johnson LM, White ME (1979)Radiation curing (Task D), (part of a Naval ResearchLaboratory report), USA
• 7. Campbell FJ, Brenner W, Johnson LM, White ME (1979)Radiation curable resins, (part of a larger report), USA, pp 79–92
• 8. Canady V, Berejka AJ, Whitney W (1975) Report on creep and flow characterization of Raychem adhesives. Submittal to the Trans-Alaskan Pipeline System, Raychem Corporation, Menlo Park, California, USA
• 9. Charlesby A (1960) Atomic radiation and polymers. Pergamon Press, New York, p 417
• 10. Cleland MR, Berejka AJ, Sampa MH et al. (2010) Industrial electron beam processing. International Atomic Energy Agency Working Material – rev. 3. IAEA, Vienna, Austria (February 2010)
• 11. Coqueret X, Defoort B, Dupillier JM, Larnac G (2003) Polymerization kinetics of acrylate monomers under UV/EB radiation: from labscale monitoring to the modeling of industrial curing. In: Proc of the UV/EB – Meeting the Challenge, Radtech Europe, November 3–5, 2003, Berlin, Germany
• 12. Felis K, Avnery T, Berejka AJ (2002) Innovative energy efficient low voltage electron beam emitters. Radiat Phys Chem 63:605–608
• 13. Herer A, Galloway RA, Cleland MR et al. (2009) X-ray cured carbon-fiber composites for vehicle use. Radiat Phys Chem 78:531–534
• 14. Larsen LS (2000) Electron beam cured coatings for metals. Student award presentation to the Council on Ionizing Radiation Measurements and Standards (November 1, 2000)
• 15. Morales T, Rueda E, Christmas B (2008) The relative effects of AC- and DC-powered UV lamp systems on the properties of UV-polymerized films. In: Proc of the RadTech International North America UV& EB Curing Technology Conf, May 4–7, 2008, Chicago, IL, USA
• 16. Ponsaud P, Defoort B, Coqueret X (2005) A microstructural investigation of UV and EB-cured bisphenol-A ethoxy diacrylate by 1H NMR relaxation measurements. In: Proc of the SAMPE 2005, May 1–5, 2005, Long Beach, CA, USA
• 17. Spadaro G, Dispenza C, Fuochi P, Lavalle M, Corda U, Alessi S (2005) Epoxy based matrices for structural composites prepared by ionizing radiation. In: Proc of the IAEA Consultants Meeting on Radiation Curing of Composites, August 8–11, 2005, Sao Paulo, Brazil
• 18. Van Landingham MR, Eduljee RF, Cillespie Jr JW (1999) Relationships between stoichiometry, microstructure, and properties for amine-cured epoxies. J Appl Polym Sci 71:699–712