Sustainable future alternatives to petroleum-based polymeric conservation materials

Yvonne Shashoua, Katja Atanasova, Claire Curran

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningpeer review

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The research described here is the first study on the use of sustainable, plant-based biopolymers in conservation practice. Two applications of biopolymers to conservation were investigated – in commercial bioplastics as substitutes for petroleum-based plastic packaging, and in novel adhesive and coating formulations. Bio-polyethylenes, bio-polyesters and bio-cellulose-based products were evaluated against petroleum-based materials. Bio- and petroleum-based polyethylenes shared optical, chemical and thermal properties. Bamboo and sugarcane fibre containers were also chemically stable. Polyester polylactic acid (PLA) bags and containers became brittle and opaque at a relative humidity (RH) above 65%. FTIR spectroscopy and thermogravimetric analysis suggested that PLA hydrolysed to produce acids. PLA/cornstarch bags fragmented on ageing and formed a gel at high RH levels. A 5 wt% solution of adhesive prepared from soya protein was an effective and reversible adhesive for wood, paper and glass, but adhered poorly to polyethylene and poly(methyl methacrylate). Humic acid-based solutions formed cohesive films which adhered well to glass, paper and soil.
TitelICOM-CC 18th Triennial Conference Preprints
RedaktørerJanet Bridgland
Antal sider6
ForlagInternational Council of Museums
Publikationsdato4 sep. 2017
StatusUdgivet - 4 sep. 2017
BegivenhedICOM-CC 18th Triennial Conference: Linking Past and Future - Tivoli Congress Center , Copenhagen, Danmark
Varighed: 4 sep. 20178 sep. 2017
Konferencens nummer: 18


KonferenceICOM-CC 18th Triennial Conference
LokationTivoli Congress Center