| dc.description.abstract | This research aims to produce the T-BAR particleboard from Physic nuts for interior
building, which are brought agricultural wastes to used for beneficial materials. Under the
Thailand industrial standard (TIS-876-2547) specified the evaluated values such as desnsity,
water content, water absorption, thickness swelling, bending strength, elastic modulus, and
internal bonded. The experiment and evaluation processes between Physic nuts per Urea
Formaldehyde ratio and Physic nuts per Phenol-cyanate based on 90:10, 92:8, 95:5 and 97:3
in consequence, that we found the thickness of particleboard not more than 2 cm. The
suitable ratio for Phenol-cyanate 92:8 percentage (Physic nuts 92% with Phenol-cyanate 8%),
and suitable ratio for Urea Formaldehyde 90:10 percentage (Physic nuts 90% with Urea
Formaldehyde 10%) at 120 Celsius temperature on pressing process. The Phenol-cyanate
glue ratio of 0.80 gram per cubic centimeter suited to produce the particleboards, averaged
water content before pressing 8.89%, suitable pressure in process 150 pound per square
inch, water content 7.65%, density 0.818 gram per cubic centimeter, water absorption
14.23% during 2 hours, thickness swelling 8.02% during 2 hours, internal bond 0.56 MPa,
bending strength 21.45 MPa, modulus 2116 MPa.
The Urea Formaldehyde glue ratio of 0.82 gram per cubic centimeter suited to
produce the particleboards, averaged water content before pressing 9.84%, suitable pressure
in process 152 pound per square inch, water content 8.63%, density 0.833 gram per cubic
centimeter, water absorption 14.36% during 2 hours, thickness swelling 8.95% during 2
hours, internal bond 1.39 MPa, bending strength 22.37 MPa, modulus 2117 MPa.
As the results shown that both of Urea Formaldehyde and Phenol-cyanate with
Physic nuts passed the TIS 876-2547 standard. The Physic nuts can produce the
particleboards for using inside building. | en_US |
