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Modifications Of Preceramic Polymers Suitable For Corrosion Resistant And High Temperature Coatings

Published online by Cambridge University Press:  10 February 2011

Y. D. Blum ,
H. P. Chen ,
D. B. Macqueen  and
S. M. Johnson
Y. D. Blum
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, [email protected]
H. P. Chen
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, [email protected]
D. B. Macqueen
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, [email protected]
S. M. Johnson
Affiliation:
SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, [email protected]
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Abstract

Low-cost preceramic polymers have been developed and used for various coating and composite applications. These siloxane-based polymers can be tailored to be precursors to ceramics or remain as polymeric materials. Polyhydridomethylsiloxane (PHMS) serves as the base polymer, and it can be cured or modified by dehydrocoupling or a combination of hydrosilylation-dehydrocoupling reactions, both catalyzed by transition metal catalysts (Pt and Ru). The base polymer filled with various powders is used primarily for thick ceramic coatings. Modified polymers are used for low-temperature paint-like applications, especially where ambient curing is desirable. Both organic and inorganic modifications of PHMS for coating applications are discussed in this article. Paints containing such polymers and fillers are being evaluated for corrosion resistance and high-temperature applications.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 576: Symposium DD – Organic/Inorganic Hybrid Materials II , 1999 , 281
Copyright
Copyright © Materials Research Society 1999

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References

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