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Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.69 [2010] >
JSIR Vol.69(05) [May 2010] >
| Title: | Synthesis of low cost adhesives from pulp & paper industry waste |
| Authors: | Gothwal, R K
Mohan, M K
Ghosh, P |
| Keywords: | Black liquor
Lignin extraction
Phenol formaldehyde (PF) resin
Plywood
Wood adhesive |
| Issue Date: | May-2010 |
| Publisher: | CSIR |
| Abstract: | This study presents lignin extraction from commercial
black liquor and utilizes it as a partial substitute in phenol formaldehyde
(PF) resin synthesis. Characteristics of modified resin
[non volatile solid content (<44%), alkalinity (<5%), pH (<11.6) and
free formaldehyde (<1%)] were found close to control
PF resin with a variable viscosity (418-781 cP). Shear test properties
showed that phenol (15%) replacement with black liquor
lignin produced comparable physical bond properties and could be
used to formulate a low cost modified PF resin for
plywood panels. |
| Page(s): | 390-395 |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.69(05) [May 2010]
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