A5027707583- Natural Fiber Reinforced Composites
- Nanocomposite Films for Food Packaging
- biodegradable polymer synthesis and properties
- Food composition and properties
- Bamboo properties and applications
- Textile materials and evaluations
- Natural Antidiabetic Agents Studies
- Lignin and Wood Chemistry
- Agricultural and Food Sciences
- Phytochemistry and Biological Activities
- Ethnobotanical and Medicinal Plants Studies
- Advanced Cellulose Research Studies
- Mechanical Engineering and Vibrations Research
- Tree Root and Stability Studies
University of Douala
2023-2024
To substitute synthetic fibers, which are non-biodegradable and environmentally unfriendly, studies have been carried out to exploit vegetable fibers. Within this concept, work investigates Sida rhombifolia as a case study. Previous showed that the fibers could be extracted only by cold water retting, but study seeks show boiling extraction technique can also used. The objective of is characterize from Center region Cameroon, with water, compare their physico-chemical mechanical properties...
The specific properties and availability of banana pseudo-trunk fibers make them a promising alternative for the development green composites. However, wide dispersion their can hinder use. In this study, influence sampling area on physical mechanical was evaluated. Prior to retting, trunk sampled longitudinally (bottom, middle top) transversely (periphery, intermediate heart). Gravimetric tests were carried out revealed variations in water absorption (347.1–517.4%), density (0.92–1.45...
Starches are often used as a matrix in the development of thermoplastic composites. This study seeks to show that bitter cassava starch extracted from tubers town Loum, highest producing area Cameroon, can be composite films. Various literature protocols were for different characterizations. The results showed content 40% composite, water 13.58%, an ash 0.51%, oil retention capacity 0.737 g/g, retrogradation 41.5%, and amylose amylopectin contents 26.5% 73.50%, respectively. Analysis by...
Our study described in this paper sought to show that the fibers of midrib leaves cavendish variety banana plants from Cameroon can be extracted by boiling water and compare their properties (chemical, physical, thermal, mechanical) with those obtained cold extraction. The standard tests for various characterizations were respected. This showed contained 64.3% cellulose, 18.1% hemicellulose, 4.5% lignin, 12.9% pectin, while technique 65% 19% 5% 11% pectin. extraction gave a 9.35% yield, 0.94...
The use of plastics from petrochemical resources poses environmental impacts, and one the alternative solutions is starch. objective this present work has been to literature on starch, highlight debate in development composite films. approach adopted was state art starch thermoplastic matrix composites. shows that available worldwide can be used manufacture biodegradable plastics; remains reinforcement improve its physical mechanical properties poor; then researchers must diversify...
The aim of this study is to chemically, physically, and mechanically characterize Grewia bicolor (GB) fibers harvested in the NGONG locality located North Cameroon region for potential use elaboration tannin matrix composites. are extracted from three zones stem (top (T), middle (M), bottom (B)) by biological retting with stagnant water, various standard norms respected different tests. Analysis Fourier transform infrared spectroscopy (FTIR) chemical composition show that GB consist mainly...
The aim of this study is to propose a model for predicting the mechanical properties natural sisal yarn based on strength used fibers, unit twist and its density. To achieve this, complete factorial design modelling method was used, experiments approach, which recommended today because ease it offers in taking into account most complex phenomena. It developed basis laboratory tests. obtained predicts elasticity modulus yarn, control parameters such as fiber strength, mass. This currently one...