EVALUATION OF RAPESEED STALK PARTICLEBOARD BONDED WITH LABORATORY-MADE UREA-FORMALDEHYDE RESIN
BrassicanapusL. (rapeseed) stalk was used as a possible raw material for particleboard. A urea-formaldehyderesin was synthesized in the laboratory with resin solids at 50% content as a particleboard binder. Thephysical characteristics of the synthesized urea-formaldehyde resin were analyzed for soli...
| Main Authors: | , |
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| Format: | Article |
| Language: | Portuguese |
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Universidade Federal de Santa Maria
2015-01-01
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| Series: | Ciência Florestal |
| Online Access: | http://www.redalyc.org/articulo.oa?id=53439559024 |
| Summary: | BrassicanapusL. (rapeseed) stalk was used as a possible raw material for particleboard. A urea-formaldehyderesin was synthesized in the laboratory with resin solids at 50% content as a particleboard binder. Thephysical characteristics of the synthesized urea-formaldehyde resin were analyzed for solid content, specificgravity, viscosity, gel time, pH, and free formaldehyde content. The laboratory particleboards were madeusing rapeseed stalk and wood particles based on a rapeseed stalk oven dry weight of 0, 23, 48, 73, and100% with UF resin. The physical and mechanical properties of the particleboards were tested according tothe ASTM D 1037-99 procedure. The internal bond, bending strength and screw-holding properties of theparticleboards made using the urea-formaldehyde resin decreased gradually with increasing rapeseed stalkcontent. However, the acceptable physical and mechanical properties of all the particleboards demonstratedthat rapeseed stalk is a suitable raw material for particleboard manufacture. |
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| ISSN: | 0103-9954 1980-5098 |