| dc.description.abstract | Waste areca nut’s stem was one of lignocellulose natural resources
potential as raw material of wood liquid with through liquifaction method. The
part used was the outer stem (L), the middle (T) and the inner (D). The research objective was to determine the quality of adhesive and compared with a standard that was the nature of appearance, degree of acidity (pH), viscosity, density, solids content, gelatin time with SNI 06-4567-1998, free formaldehyde with SNI 06-4565-1998 and ash content with ASTM D 1102-84. Areca nut wood liquid of areca nut made by mixing the powder directly the third part of the areca nut’s stem 20~40 mesh at the temperature 90oC during 2 hours with technical phenol, H2SO4 98%, NaOH 50%, formaldehyde 37%.
The results of the research showed that the wood liquid stem areca nut
partially fulfill the characteristics of phenol formaldehyde adhesives for plywood according to SNI 06-4567-1998. The characteristics that fulfill such as the appearance of the outer stem were dark red and free of dirt, the pH of the three parts of the stem that was 13 (L); 11 (T and D), the density of the outer and the middle was 1.152 (L), 1.173 (T), solids content of the middle part and the inner part was 40% (T and D), the gelatin time of the three part was 332 minutes (L); 315 minutes (T); 305 minutes (D). Free formaldehyde of the three part stem fulfilled SNI 06-4565-1998 was 1.69% (L) 1.30% (T) and 1.24% (D). The wood liquid of middle part has characteristics resembling phenol formaldehyde adhesive more than the outer and the inner of areca nut’s stem. | en_US |
