3849
Title Of Article Chaper
Deterioration and conservation of plasticized poly(vinyl chloride) objects
Title Of Journal Book
ICOM Committee for Conservation, ICOM-CC : 13th Triennial Meeting, Rio de Janeiro, 22-27 September 2002 : preprints
Volume
2
Pages
927-934
Collation
8 p. : ills.
Reference Bibliography
Includes bibliographic references
Publisher
ICOM-CC; James & James
Publisher City
London
ISBN
1-902916-30-1
Language Of Text
English
Literature Type
Monograph
Literature Level
Analytic
Meeting
ICOM Committee for conservation triennial meeting (13)
Meeting Country
Brazil
Abstract
Plasticized poly(vinyl chloride) (PVC) in museum collections deteriorates by migration, loss and chemical breakdown of the plasticizer, accompanied by dehydrochlorination of the polymer. The extent, rate and mechanisms of deterioration of new and deteriorated plasticized PVC were compared during and after accelerated thermal ageing in various environments. Weight loss was used to quantify total loss of plasticizer. Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR) spectroscopy was used to quantify the concentration of di(2-ethylhexyl) phthalate plasticizer (DEHP) at the surfaces of samples. Optical densitometry was used to quantify darkening of the PVC component of samples. Degradation of new and deteriorated PVC was inhibited by enclosing it in a non-adsorbent material, such as glass containing non-agitated air. Such storage inhibited migration and loss of DEHP. -- SCMRE
Keywords
pvc; dehp; phthalate; plasticizer; plastic; adsorbents; atr-ftir; ftir; degradation -- SCMRE
pub_id
3849
Meeting Date
20020922-20020927