A comparative study of paper produced from zea mays - Philippine ...

#21
A comparative study on the efficiency of carabo dung and
ipil-ipil leaves as substitute for charcoal
Sheryl Catura, Lorna de Leon, Dolores Dimapilis
ABSTRACT
This study tested the efficiency of two materials as charcoal
substitutes. Ipil-ipil leaves and carabao dung were decayed on separate pits
for 45 days. Then mixed into proportions of : 100% dung, 100% ipil-ipil
leaves and 50% dung plus 50 % ipil-ipil leaves for molding in briquettes. The
briquettes were allowed to dry for 1 day. Efficiency was tested by heating
150 ml of water.
Temperature of the water was taken at 2 min, intervals, and the
maximum temperature of water was recorded when the charcoal substitute
was used up. Each treatment received 6 trials, using 3 briquettes per trial.
Ordinary charcoal was subjected to the same test, and the results were used
as a basis of comparison. The results of the test and by using the Analysis of
variance (ANOVA) test showed that dung-ipil mixture was the most efficient
charcoal substitute.
#22
The Production of glue and paper from scrap hides
Neriza Y Chin, Evelyn Angelita P Curioso, Rowena B Gobenciong, Maria Alyn
Ines J Newman, Margaret S Yenko
ABSTRACT
The research work aimed to determine the possibility of producing glue
and paper from scrap hides.
For the production of glue, alum was added to the extract produced
from the boiling of scrap hides. As for the production of paper, the pulp was
not subjected to quantitative test. It was immediately processed into paper
by hand papermaking.
The glue produced developed into a heterogeneous mixture of a
crystalline substance and the liquid which did not exhibit sufficient adhesive
properties on wood or paper. On the other hand, the paper produced
exhibited a tearing strength (58.0g) within the range of Philippine standards
for wrapping paper but was substandard in terms of thickness (35.71 mills)
and weight (419.0 kg/15mm). It did not pass any of the standards for writing
paper.