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All Journal Jurnal Inovasi Teknologi dan Edukasi Teknik
Nnaemeka, Ezenwa Obiora
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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OPTIMIZATION OF PROCESS PARAMETERS FOR ENHANCING THE PROPERTIES OF BREADFRUIT SEED COAT-REINFORCED LOW-DENSITY POLYETHYLENE COMPOSITE Okolie, Paul Chukwulozie; Nnaemeka, Ezenwa Obiora; Princewill Odeh, Calistus; Ndubuisi Okoye, Chibuzo; Augustine Uzodinma , Madumere; Nwachinemere, Chima Bright
Jurnal Inovasi Teknologi dan Edukasi Teknik Vol. 4 No. 8 (2024)
Publisher : Universitas Ngeri Malang

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This study investigates the optimization of process parameters to enhance the properties of breadfruit seed coat-reinforced low-density polyethylene composite ceiling boards. The research focused on assessing the effects of mixing ratio, press temperature, pressure, and press time on key material properties, including water absorption (WA), thermal conductivity (K), flexural strength (FS), and fire performance (FP). Breadfruit seed coats (BSCs) were treated with sodium hydroxide (NaOH) and acetic acid (CH₃COOH) to modify their surface properties before being mixed with kaolin (as a fire retardant) and low-density polyethylene (LDPE) to form composite boards through hydraulic pressing. The study also statistically analyzed and optimized the fabrication parameters using Response Surface Optimal Design (RSOD). The results demonstrated that kaolin content and mixing ratio significantly influenced WA, K, FS, and FP, while press temperature, pressure, and time had varying degrees of impact. The optimized parameters (20% mixing ratio, 180°C press temperature, 15 MPa press pressure, and 10 min press time) gave the optimal moisture resistance, thermal insulation, superior mechanical strength, and fire resistance. The findings highlight the potential of breadfruit seed coat composites as sustainable, cost-effective, and eco-friendly alternatives to conventional ceiling materials. This study contributes to agricultural waste recycling in composite manufacturing, promoting environmental sustainability while meeting modern construction demands
DEVELOPMENT AND CHARACTERIZATION OF FIRE-RESISTANT CEILING BOARDS FROM LOW-DENSITY POLYETHYLENE-REINFORCED BREADFRUIT SEED COATS Chukwulozie Okolie, Paul; Nnaemeka, Ezenwa Obiora; Princewill Odeh, Calistus; Ndubuisi Okoye, Chibuzo; Augustine Uzodinma , Madumere; Nwachinemere, Chima Bright
Jurnal Inovasi Teknologi dan Edukasi Teknik Vol. 4 No. 9 (2024)
Publisher : Universitas Ngeri Malang

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The increasing demand for sustainable composite materials has led to the exploration of agricultural waste as an alternative to wood-based particleboards. This study develops and characterizes a fire-resistant composite ceiling board using breadfruit seed coats (BSCs) reinforced with low-density polyethylene (LDPE) and kaolin. The study investigated the effects of mixture ratio, press temperature, pressure, and time on water absorption, thermal conductivity, flexural strength, and fire performance. Results showed that the lowest water absorption (2.941 percent) was achieved at 60 wt percent BSCs, 200°C, 15 MPa, and 10 min, ensuring resistance to moisture-related deterioration. The lowest thermal conductivity (0.106 Wm⁻¹K⁻¹) was recorded at 80 wt percent kaolin, 190°C, 11 MPa, and 15 min, indicating superior insulation properties. Flexural strength was highest (0.833 MPa) at 0 wt percent kaolin, while increased kaolin content significantly improved fire resistance, with a maximum Time to Ignition (224 sec) and lowest heat release rate (103 kW/m²) at 80 wt percent kaolin, 190°C, 11 MPa, and 15 min. The optimal processing conditions were 190°C, 11 MPa, and 15 min. These findings demonstrated the potential of breadfruit seed coat-based composites as fire-resistant, moisture-resistant, and thermally insulating ceiling boards, providing a sustainable alternative to conventional materials.
Co-Authors Augustine Uzodinma , Madumere Chukwulozie Okolie, Paul Ndubuisi Okoye, Chibuzo Nwachinemere, Chima Bright Okolie, Paul Chukwulozie Princewill Odeh, Calistus