Modifying wood with bio-polyesters: analysis and performance

Noël, Marion; Grigsby, W.; Vitkeviciute, I.; Volkmer, Thomas (2015). Modifying wood with bio-polyesters: analysis and performance International Wood Products Journal, 6(1), pp. 14-20. Taylor & Francis 10.1179/2042645314Y.0000000086

[img] Text
Modifying wood with bio polyesters analysis and performance.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (503kB) | Request a copy

Oligomers of lactic and glycolic acid (OLA, OGA) and poly(butylene succinate/adipate) (OBS, OBA) were impregnated and heated into wood for dimensional stabilisation. These bio-polyesters variously provide bulking and lumen filling treatments. Solvent extraction of treated wood showed that ca. 50% of the polymer remains in wood with in situ polymerisation evidenced by GPC. OGA readily penetrates the wood cell wall, which occurred only on heating OLA, whereas OBS/OBA was lumen filling with any cell wall penetration only evident after water soaking. Stability of OLA/OGA treated wood was improved, but did not withstand extended leaching, whereas OBS/OBA treated wood presented higher stability once leached. Bending resistance was influenced by OLA/OGA treatments, but original MOE values were recovered after leaching. Overall, the results show the bio-polyester treatment can confer specific properties of the modified wood to suit selected end use applications.

Item Type:

Newspaper or Magazine Article

Division/Institute:

Architecture, Wood and Civil Engineering

Name:

Noël, Marion;
Grigsby, W.;
Vitkeviciute, I. and
Volkmer, Thomas

ISSN:

2042-6453

Publisher:

Taylor & Francis

Language:

English

Submitter:

Admin import user

Date Deposited:

18 Dec 2019 12:56

Last Modified:

18 Dec 2019 12:56

Publisher DOI:

10.1179/2042645314Y.0000000086

ARBOR DOI:

10.24451/arbor.6072

URI:

https://arbor.bfh.ch/id/eprint/6072

Actions (login required)

View Item View Item
Provide Feedback