Fugitive coatings

Molybdenum has been examined as an alternate fugitive coating, due to its transformation to M0O3 at low PO2 and the subsequent sublimation ofMoOa at - 1155°C. The results of the published works indicate that molybdenum does not provide significantly improved properties over fugitive carbon coatings and can tend to be discontinuous. 

The common application of aromatic amines is in thick-walled goods made from rubber vulcanizates. The physical loss has been considered as the main factor in the ultimate failure of goods like wire and cable coatings or automotive components. Tests report lower volatility of lid and lib,c in comparison with 11a. Excellent resistance against fugitivity at 150°C was reported for 9b (1.5% loss after 2 weeks) in comparison with 7.8% loss of a condensate like 22 and 17.5% loss of 9a [1]. Extraction tests reveal good resistance of 9b, lid and 22 [8]. 

Butene, homopolymer PIB Polybutene Poly-a-butylene U.S, National L. Polymer formed by polymerization of a mixture of iso and normal butenes. Thermoplastic resin used as tackifier, strengthener, and extender in adhesives, as plasticizer for rubber, as vehicle and fugitive binder for coatings, Amoco Lubricants Ashland BP Chem. Harcros. 

Keller, K.A., T. Mah, T.A. Parthasarathy, and C.M. Cooke. 1993. Fugitive interfacial carbon coatings for oxide/oxide composites. Ceramic Engineering and Science Proceedings 14(9-10) 878-879. ... 

Mah, T., K. Keller, T.A. Parthasarathy, and J. Guth. 1991. Fugitive interface coating in oxide-oxide composites aviability study. Ceramic Engineering and Science Proceedings 12(9-10) 1802-1815. ... 

The steps involved in the fabrication of SiC/RBSN composites are shown in Fig. 1. The details of the composite fabrication procedure were described in Reference 6. The starting materials for composite fabrication were SiC fiber mats and silicon powder cloth. The SiC fiber mats were prepared by winding the SiC fibers with desired spacing on a cylindrical dmm. The fiber spacing used depended on the desired fiber volume fraction in the composite. The fiber mats were coated with a fugitive polymer binder such as polymethylmethacralate (PMMA) to maintain the fiber spacing. 

Manufacture of coating preparations, varnishes, inks and adhesives (>100) 100-1000 >1000 150 150 5 3 5% of solvent input The fugitive emission value does not include solvent sold as part of a coatings (H eparation in a sealed container... 

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