THE USE OF Orbignya speciosa FLOUR IN PLYWOOD ADHESIVE MIX

Ciência Florestal

Benedito Rocha Vital¹  Roberto Carlos Costa Lelis¹  Angélica de Cássi Oliveira Carneiro¹  Vanessa Coelho Almeida² 

[1] ;Universidade Federal de Santa Maria, Santa Maria, RS;

关键词: extensor;    farinha de babaçu;    ureia-formaldeído;   

DOI  :  10.5902/1980509813340

来源: DOAJ

【 摘 要 】

http://dx.doi.org/10.5902/1980509813340

The aim of this study was to evaluate the effect of the addition of babaçu flour on urea-formaldehyde adhesive properties and compare it to the adhesives produced with wheat flour, which is the extender usually used for plywood production. An amount of 0, 10, 20 and 30 parts of extender per weight of the adhesive were added. Ammonium sulfate was used as catalyst, in the proportion of 1.5% on dry weight of solid content. The following properties of the adhesive were determined: viscosity, nonvolatile content, gel time, working life and pH. The babaçu flour presented similar properties to wheat flour. Both, in general, although contributed to the increase of the adhesives viscosity, reduced its reactivity, as increased pH value, gel time and working life.

【 授权许可】

Unknown