Property characterization of composite board utilizing coconut shell particles and coconut coir bonded with vinyl ester resin/ Rafael S. Agito, John Roque M. Angon, Christopher Avenda, Angelica E. Faller, John Daryll T. Lente, Kristine Jewel D. Nepales, and Aljohn G. Quilicol .--

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Agito, Rafael S [author ]

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TextPublication details: Manila: Technological University of the Philippines, 2023.Description: xii, 142pages: 29cm. +1 CD-ROM (4 3/4in.)Content type:

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BTH TA 145 A35 2023

Dissertation note: College of Engineering.-- Bachelor of Science in Civil Engineering: Technological University of the Philippines, 2023. Summary: The study utilized coconut waste products, specifically coir and shell, as reinforcement for composite board bonded with vinyl ester resin. Coconut coir was extracted from the coconut husk, cleaned, cut into 3 cm length fibers, and treated with NaOH for 72 hours. As for the filler material, coconut shells were crushed, sieved through a 100-mesh size, and treated with NaOH for 2 hours. Eight (8) design mixes were prepared. The composite boards were fabricated using hand lay-up method, and the boards were evaluated in accordance to ASTM D1037 and Philippine National Standards (PNS). Samples were tested for water absorption, thickness swelling, modulus of rupture, and nail head pull through. The treated coconut coir indicates a tensile strength of 9.28 Kgf/g.m and an elongation of 31.76%. On the other hand, the chemical properties of the coconut shell particles were found to have less potential to absorb the moisture from surrounding due to its morphological aspects. Regarding the physical properties of the composite board, all design mixes passed the PNS. Design mix A had the lowest water absorption at 1.24%, and design mix F had the lowest thickness swelling with 0.27%. For the mechanical properties of the composite board, all boards passed the PNS. For the modulus of rupture, all eight design mixes can be classified as Type 100, while design mixes E, F, G and H containing 15% coconut coir can be classified as Type 150, as well. Only design mix E and G can be classified as Type 200. Moreover, for the nail head pull through design mix G had the highest mean value of 414.62 kg. Analysis of all test results revealed that Design Mix G with 20 CSP: 15CF: 65VE is the optimum ratio.

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Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TA 145 A35 2023 (Browse shelf(Opens below))	c.1.	Not for loan	For library use only		BTH0003943

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Thesis (undergraduate)

College of Engineering.-- Bachelor of Science in Civil Engineering: Technological University of the Philippines, 2023.

Includes bibliography:

The study utilized coconut waste products, specifically coir and shell, as
reinforcement for composite board bonded with vinyl ester resin. Coconut coir was
extracted from the coconut husk, cleaned, cut into 3 cm length fibers, and treated with
NaOH for 72 hours. As for the filler material, coconut shells were crushed, sieved through
a 100-mesh size, and treated with NaOH for 2 hours.
Eight (8) design mixes were prepared. The composite boards were fabricated using
hand lay-up method, and the boards were evaluated in accordance to ASTM D1037 and
Philippine National Standards (PNS). Samples were tested for water absorption, thickness
swelling, modulus of rupture, and nail head pull through.
The treated coconut coir indicates a tensile strength of 9.28 Kgf/g.m and an
elongation of 31.76%. On the other hand, the chemical properties of the coconut shell
particles were found to have less potential to absorb the moisture from surrounding due to
its morphological aspects. Regarding the physical properties of the composite board, all
design mixes passed the PNS. Design mix A had the lowest water absorption at 1.24%, and
design mix F had the lowest thickness swelling with 0.27%. For the mechanical properties
of the composite board, all boards passed the PNS. For the modulus of rupture, all eight
design mixes can be classified as Type 100, while design mixes E, F, G and H containing
15% coconut coir can be classified as Type 150, as well. Only design mix E and G can be
classified as Type 200. Moreover, for the nail head pull through design mix G had the
highest mean value of 414.62 kg. Analysis of all test results revealed that Design Mix G
with 20 CSP: 15CF: 65VE is the optimum ratio.

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