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Book chapter
The use of accelerated ageing tests for studying the degradation of cellulose nitrate
Previous studies have shown that high levels of sulphate in cellulose nitrate artefacts may be a cause of increased degradation. Accelerated ageing tests have been used to study and monitor the deterioration of prepared cellulose nitrate samples and artefacts over time. An evaluation has been made of the effects of... -
Book chapter
Degradation studies of cellulose nitrate plastics
This book addresses the interaction of principle and practice, of materials, techniques and ideas, which characterise contemporary conservation as a whole.Stewart, R ; Littlejohn, D ; Pethrick, R P ; Quye, Anita ; Tennent, N H
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Book chapter
Probing the factors which control degradation in museum collections of cellulose acetate artefacts
Cellulose acetate artefacts in museum collections cover a period from the early 1900's to the present day. Conservators have observed that certain of these objects are showing signs of warping, crazing, cracking, discolouration and shrinkage accompanied by a strong smell of acetic acid. Previous studies on cellulose nitrate artefacts show...Ballany, Jane M ; Littlejohn, D ; Pethrick, R P ; Quye, Anita
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Book chapter
Plastics conservation – Barbie™ and friends
The chemical sciences and their applications are all around us. Many museums and galleries have scientific departments, and collectors of objects that may not even be "antique" in the strict definition of the word often need to have some scientific knowledge to stop their collection deteriorating. This resource shows how... -
Book chapter
A preliminary study of light-ageing effects on the analysis of natural flavonoid-dyed wools by PDA HPLC and by DTMS
Initial results from high performance liquid chromatographic (HPLC) analysis of accelerated fluorescent tube- and mercury-incandescent lamp-aged mordanted wools dyed with old fustic, weld, quercitron bark, quercetin, dyer's greenweed and onion skins indicate that additional chromophoric and non-chromophoric compounds are generated upon photodegredation. Greater amounts of these componenets were generated after...
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