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2 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2 2018

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Flammability of wood treated with caffeine

Cofta G., Grześkowiak W., Kwaśniewska-Sip P.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2018

No. 104

106--108

The aim of the study was to determine the effect on the flammability of wood (beech, poplar and pine) impregnated with 1% and 2% caffeine an aqueous solution. The test was carried out with the modified ASTM E 69 method. It was found that a 1% caffeine solution slightly increases the mass loss when burning pine, beech and poplar wood. The exception is the 2% caffeine solution, which caused a decrease in the temperature and mass loss of beech wood.

Caffeine as anti-mould additive for wood preservative contain copper

Cofta G., Kwaśniewska-Sip P., Weltrowski K.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2018

No. 104

101--105

The aim of the work was the assessment of caffeine as an anti-mold additive in a commercial wood preservative containing copper for pressure impregnation. The wood preservative was enriched with caffeine of five different concentrations (1%, 0.5%, 0.25%, 0.125% and 0.0625%). Four microfungi A. niger, P. funiculosum, P. variotii and T. viride were used in the mycological test. It was found that the mixture of wood preservative and 1% caffeine protects until the 7th day to an extent satisfactory for wood against mold growth.