Abstract

Scots pine sapwood was treated with a new formulation consisting of vinyl acetate (VAc) and epoxidized linseed oil (ELO) catalyzed by potassium persulfate to impart protection to wood. The effects of various curing temperatures, durations, and solution uptakes on dimensional stability (DS) and leachability were studied. The new formulation provided good anti-swelling efficiency (ASE) ranging from 35% to 47% with negligible leaching of the treating agent after four cycles of water soaking and oven drying (2%-2.5%). The extent of polymerization in wood was observed by FTIR-attenuated total reflectance (FTIR-ATR) by evaluation of the areas below typical IR bands as a function of curing temperature and time. Linear relationships were found with high R-2 values. The FTIR data of extracted samples were interpreted that chemical reactions took place between the resulting copolymer and wood components.

Keywords

curing; dimensional stability; FTIR-ATR; leach-ability; modified wood; vinyl acetate-epoxidized linseed oil; wood treatment

Published in

Holzforschung
2016, Volume: 70, number: 4, pages: 305-312
Publisher: WALTER DE GRUYTER GMBH

SLU Authors

• Cai, Shengzhen

  • Department of Forest Products, Swedish University of Agricultural Sciences
    

• Jebrane, Mohamed

  • Department of Forest Products, Swedish University of Agricultural Sciences
    

• Terziev, Nasko

  • Department of Forest Products, Swedish University of Agricultural Sciences
    

Associated SLU-program

Non-toxic environment


UKÄ Subject classification

Polymer Chemistry
Materials Chemistry
Renewable Bioenergy Research


Publication identifier

DOI: https://doi.org/10.1515/hf-2015-0092

Permanent link to this page (URI)

https://res.slu.se/id/publ/76229