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Enhancement of Impact Strength in Jute Fiber-Reinforced Polypropylene-Spent Coffee Ground Composites
Published in Jose James, Sabu Thomas, Nandakumar Kalarikkal, Yang Weimin, Kaushik Pal, Processing and Characterization of Multicomponent Polymer Systems, 2019
Jute is used chiefly to make cloth for wrapping bales of raw cotton and to make sacks and coarse cloth. The fibers are also woven into curtains, chair coverings, carpets, area rugs, hessian cloth, and backing for linoleum.While jute is being replaced by synthetic materials in many of these uses, some uses take advantage of jute’s biodegradable nature, where synthetics would be unsuitable.Jute butts, the course ends of the plants, are used to make inexpensive cloth.Traditionally jute was used in traditional textile machinery as textile fibers having cellulose (vegetable fiber content) and lignin (wood fiber content). But, the major breakthrough came when the automobile, pulp, and paper, and the furniture and bedding industries started to use jute and its allied fibers with their non-woven and composite technology to manufacture nonwovens, technical textiles, and composites.Jute can be used to create a number of fabrics such as Hessian cloth, sacking, scrim, carpet backing cloth (CBC), and canvas.Hessian, lighter than sacking, is used for bags, wrappers, wall-coverings, upholstery, and home furnishings.Diversified jute products are becoming more and more valuable to the consumer today. Among these are espadrilles, floor coverings, home textiles, high-performance technical textiles, Geotextiles, composites, and more.Jute is also used in the making of ghillie suits which are used as camouflage and resemble grasses or brush.
Development and Testing of Solar Powered Evaporative Air-Cooling System with an Improved Performance
Published in Cogent Engineering, 2023
Tadelle N. Mekonen, Mulugeta A. Delele, Sissay W. Molla
In this study, the average capacity for water absorption of the cotton fiber was found 3.126 g/g. Cotton fiber has better water take-up capacity compared to other existing cooling pads such as Jute (2.1 g/g), charcoal (0.5 g/g), wood shaving (2.5 g/g; Manuwa & Odey, 2012), Jute (1.76 g/g) and Hessian (2.54 g/g; Olosunde et al., 2009), cellulose pad, metal pad, PVC pad, aspen, rice straw, and vermiculites. This is owing to its superior capillary diffusion and wicking capabilities (Ndukwu & Manuwa, 2014). Cotton satisfies one of the most important features of a cooling pad which is the ability to hold water. Cotton fiber can absorb water three times its dry weight, as depicted in the result. Therefore textile materials such as cotton fibers are a good cooling pad materials for direct evaporative cooling. This is because these materials have a good wicking ability; this enhances the heat and mass transfer resulting in a good cooling capacity.
Defects identification in raw jute fibre using convolutional neural network models
Published in The Journal of The Textile Institute, 2023
T. Nageshkumar, Prateek Shrivastava, Biplab Saha, A. Subeesh, D. B. Shakyawar, Gunasindhu Sardar, Jayanta Mandal
Among all the natural fibres, jute is the second most cultivated, produced and consumed globally for different applications after cotton (Ghosh & Das, 2013). Since it is the cheapest and strongest of all natural fibres (Khan & Khan, 2014), the majority of the products like sacks, carpet and twines, hessian cloth, ropes and cords are manufactured from it. In the global perspective, India and Bangladesh are the leading jute-producing countries in the world and together account for 98% global jute production (Anon, 2022). India alone accounts for around 50% of estimated global jute production in the globe (Mitra, 2021). In India, jute is mainly grown in the eastern region of the country i.e. West Bengal, Bihar, Odisha, Assam, Tripura, Meghalaya, Andhra Pradesh and Telangana. West Bengal state is the largest producer of jute in India. The jute industry contributes significantly to the Indian economy. This sector alone provides direct employment to about 3.70 lakh workers in the country and livelihood to over 40 lakh farm families. Besides domestic consumption, India earns substantial revenue by exporting jute goods each year (Anon, 2022). As per the Directorate General of Commercial Intelligence & Statistics (DGCI&S), the combined exports of raw jute and jute products is Rs. 2,933 crore in 2020–21.
Basic and drying creep of ultra-high performance concrete
Published in Australian Journal of Civil Engineering, 2023
Ming Sun, Phillip Visintin, Terry Bennett
The mixing of UHPC was performed in a pan mixer, with dry materials firstly mixed for five minutes to obtain an isotropic mix, followed by the addition of water and superplasticiser. The mixing process continued for an additional 20 minutes to ensure workability. Once mixed, the concrete was placed into steel moulds and covered by damp hessian to prevent moisture evaporation. The specimens in their moulds were then stored in ambient lab conditions (approximately 25) to cure for two days. Specimens were subsequently demoulded, with half of the samples, for basic creep and autogenous shrinkage measurement, sealed by aluminium adhesive tape and stored in a constant temperature (25) and relative humidity (50%) room, until 28 days. The other half of the samples, for drying creep and total shrinkage measurement, were not sealed and were stored in a fog room to cure for 7 days, followed by drying in the same constant temperature and relative humidity room, until 28 days.