Failure of adhesive or cohesive within oil palm veneer plywood bonded with selected resin / Nur Zakiah Mohd Yasin
This study investigated the bond formation of adhesive on to the plywood form oil palm trunk (OPT) veneer. Adhesive used for the study were Urea Formaldehyde (UF), Phenol Formaldehyde (PF) and Polyvinyl Acetate (PVAc). The adhesive spread value was determined through the thickness of veneer. For...
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| Format: | Student Project |
| Language: | English |
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Faculty of Applied Sciences
2016
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| Online Access: | http://ir.uitm.edu.my/id/eprint/22651/ http://ir.uitm.edu.my/id/eprint/22651/1/PPb_NUR%20ZAKIAH%20MOHD%20YASIN%20AS%20C%2016_5.PDF |
| Summary: | This study investigated the bond formation of adhesive on to the plywood
form oil palm trunk (OPT) veneer. Adhesive used for the study were Urea
Formaldehyde (UF), Phenol Formaldehyde (PF) and Polyvinyl Acetate
(PVAc). The adhesive spread value was determined through the thickness of
veneer. For bending strength the modulus of elasticity (MOE) and modulus of
rupture (MOR) are significant at PSO.05. PF resins have the highest MOE
and MOR at 1881.17 MPa and 12.26 MPa respectively. The tensile shear
shows strength UF>PF>PVAc. The result is highly significant at PSO.01 and
UF (0.51 MPa) passed the standard JAS 2014 requirement. Lastly wood
failure shows a highly significant difference at PSO.01, indication that
covalent bonding and cohesive failure of PF and UF is stronger than PVAc
(dipolar). The highest wood failure was PF with 78%. |
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