Leonardo Electronic Journal Of Practices And Technologies

 Journal

 Development Of Natural Polymer Reinforced Cement/waste Paper Pulp Composites For Structural Application

 Isiaka Oluwole OLADELE, Baraka Abiodun ISOLA, Samuel Anuoluwapo TAIWO, Ibrahim Ogie IBRAHIM And Abdullahi Olawale MASUD

 2018

This work investigates the influence of white cow hair as reinforcement in Cement/Waste paper pulp matrix for structural applications. Cow hairs as natural polymer, were sourced from an abattoir, and washed properly in clean water and sun dried for 5 days. Paper pulp was prepared by first soaking waste paper in water for 3 days, after which it was grinded in the paper pulp machine to form paper pulp slurry and then sun dried for 5 days. The cow hair after cutting to 10 mm lengths, were thoroughly mixed with the dried paper pulp to develop composite samples of varied weight content using the open mould technique by adding appropriate quantity of cement as binder. The developed composite samples were allowed to cure in air in the laboratory for 27 days before testing. The results of the mechanical properties examined showed that sample S5 containing (80 wt. % paper pulp, 10 wt.% cement and 10 wt.% cow hair) has the best flexural and compressive properties while sample denoted as S4 has the best water absorption property. 

 Leonardo Electronic Journal Of Practices And Technologies

 Journal

 Development Of Organic Material Based Composites For Packaging Application Using Recycled Papers

 Isiaka Oluwole OLADELE, Ibukun Stephen AFOLABI And Anuoluwapo Samuel TAIWO

 2017

This study shows the effects of cassava starch as binder on the flexural strength and the water absorptivity properties of cassava starch bonded paper pulp based composites. Paper pulp was produced by chopping waste papers into smaller pieces and soaked in water for 2 weeks after which it was pulverized in the grinding machine to form paper pulp. The starch slurry was prepared with boiled water and stirred properly to produce lumps free starch slurry. The starch slurry after cooling was preserved in a container. The composites were developed by forming the homogeneous pastes from the mixture of starch with white and brown papers slurry, respectively in predetermined proportions. The developed composites were allowed to cure at room temperature in the laboratory for 28 days after which flexural and water absorptivity tests were carried out on the samples. It was deduced from the work that both white and brown paper pulp based composites possessed improved properties than the control sample which was without starch. However, starch bonded brown paper pulp based composites gave the best bending properties while starch bonded white paper pulp based composites gave the best water absorption resistance response.