Curing of wood treated with vinyl acetate-epoxidized linseed oil copolymer (VAc-ELO)

Sammanfattning

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.

Nyckelord

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

Publicerad i

Holzforschung
2016, volym: 70, nummer: 4, sidor: 305-312
Utgivare: WALTER DE GRUYTER GMBH

SLU författare

• Cai, Shengzhen

  • Institutionen för skogens produkter, Sveriges lantbruksuniversitet
    

• Jebrane, Mohamed

  • Institutionen för skogens produkter, Sveriges lantbruksuniversitet
    

• Terziev, Nasko

  • Institutionen för skogens produkter, Sveriges lantbruksuniversitet
    

Associerade SLU-program

Giftfri miljö

UKÄ forskningsämne

Polymerkemi
Materialkemi
Bioenergi

Publikationens identifierare

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

Permanent länk till denna sida (URI)

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