Development of ceiling board using breadfruit seed coat and recycled low density polyethylene

Abstract

Conversion of agro wastes into potential raw materials for production has gained a lot of attention in research. This has led to the development of ceiling board using waste breadfruit seed coat and Recycled Low Density Polyethylene, as filler and binder respectively. The filler material (Breadfruit seed coat), was treated with 1 mol/dm3 of NaOH to eliminate the pigment and neutralized using 0.5 mol/dm3 Acetic Acid. After drying, the filler material was ground to a particle size of 600μm. Using Central Composite Design (CCD) tool of the Design Expert software, the experimental design was set up. From the design, thirty experimental samples were developed with the production parameters; press time, press pressure, press temperature and filler/rLDPE ratio as the independent variables. The produced samples were tested for Thermal Conductivity, Water Absorption, Thickness Swell and Density tests, which formed the responses for the Central Composite Design. The results of the experiment were analysed using the Response Surface Methodology while the validation was done using the Analysis of Variance (ANOVA). The optimal values obtained for the production parameters are 19.722% filer/rLDPE, 10minutes press time, 197.31 °C press temperature and 9.042MPa press pressure, which gave a 775.661 g/cm3 density, 0.308% Water Absorption, 0.962% Thickness Swell and 0.367W/M.K Thermal Conductivity. This result shows that agro waste breadfruit seed coat is a good filler material for the production of ceiling board.

Steel work design and analysis of a 40-ton constant temperature hydraulic press

“…The increase in pressure on the other hand also reduces the moisture content of the material. This findings agree with that of Ezenwa et al. (2019) .…”

“…This is true because if the press time increases the effect of pressure on the material will cause an increase in the amount of moisture content lost. This negative effect of press time and pressure was also reported by Ezenwa et al. (2019) in their research.…”

Valorization of post-consumer polythene water sachet and Parinari polyandra shell residue for composites production

“…Several biomasses have been investigated as fillers in LDPE polymer matrix, these include breadfruit seed coat [13], olive stone [11], snail shell [14] wood fiber [15], palm kernel shell fiber [16], groundnut shell [17]. Recent works also reported other applications of LDPE waste as construction materials in plastic bonded sand block [9], lightweight concrete [18] and hydrophobic surface coating [19].…”

Characterization of Selected Biomass Materials as Potential Additives for Developing an Eco-friendly Ceiling Composite

“…Thus, improving the thermal environment and efficient green energy production [10]. Also, study by Ezenwa et al [11] showed that optimization of the process parameters like press pressure, press time, and press temperature during ceiling composite production would lead to a ceiling product of adequate physical and thermal characteristics. However, the comparison of the insulation properties with the interfacial heat transfer coefficient remained a major problem to ceiling materialists [12].…”