Polyester insulation materials, HFC refrigerants and ester lubricants

Author

Sefton, M.S. ; Mortlock, S.V. ; Harding, M.A. ; Corr, S. ; Tompsett, G.

Author_Institution

ICI Films, Cleveland, UK

fYear

1993

fDate

4-7 Oct 1993

Firstpage

505

Lastpage

506

Abstract

A range of polyester motor insulation films is examined for compatibility with the ozone benign hydrofluorocarbon (HFC) refrigerants HFC 32, HFC 134a and HFC 125 and with mixed acid polyester lubricants. The results indicate that the HFC 134a-ester lubricant mixture is considerably more aggressive in terms of oligomer extraction to standard polyethylene terephthalate (PET) film than the chlorofluorocarbon (CFC) 12-mineral oil or HCFC 22-mineral oil standard refrigerant-lubricant mixtures. However, long oligomer PET film shows similar behavior in CFC 12, HCFC 22 or HFC 134a based refrigerant-lubricant systems

Keywords

polymers; CFC 12; HCFC 22; HFC 125; HFC 134a; HFC 32; HFC refrigerants; ester lubricants; hydrofluorocarbon refrigerants; long oligomer PET film; mixed acid polyester lubricants; polyester motor insulation films; Compressors; Hybrid fiber coaxial cables; Insulation; Lubricants; Petroleum; Polymer films; Positron emission tomography; Refrigerants; Temperature; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1993. Proceedings., Chicago '93 EEIC/ICWA Exposition

Conference_Location

Chicago, IL

ISSN

1071-6270

Print_ISBN

0-7803-0847-6

Type

conf

DOI

10.1109/EEIC.1993.631245

Filename

631245