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    Wood substitute from agro-industrial waste

    Wood substitute from agro-industrial waste

    New Delhi (India Science Wire): India, the second largest agro-based economy with year-round crop cultivation, generates a large volume of agricultural waste; including crop residues. Crop-residue has emerged as a threat to the environment. The burning of crop residue in Punjab and Haryana is responsible for severe air pollution during winter in Delhi and Northern India. Various ways have been thought of and used to tackle the agro waste in an eco-friendly manner.

    The Council of Scientific and Industrial Research-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal conducted a research to find a productive way to manage the agro-industrial waste. The findings of the research paved way to introduce new materials for the development of a wood substitute for building applications so that consumption oftimber in building and house construction can be minimised. This technology also offers a potential solution for effective utilisation of different agro-industrial wastes such as paddy straw, wheat straw, marble wastes, red mud, fly ash, andother minerals, metallurgical wastes.



    For making evergreen hybrid ply and composite wood, agro wastes primarily paddystraw/ stubble and wheat straw, and industrial wastes, mainly marble wastes, fly ash fromThermal power plants, red mud from Aluminium industries were used as a primary rawmaterial with natural fibres in the polymeric system (Polyester / epoxy resin).

    The performance of evergreen hybrid ply and composite wood would vary depending onthe raw materials quantity, quality, particulate- fibre ratio, particulate / fibres – binder ratio,type of polymeric system and processing and manufacturing conditions. It can be made in a single-stage fabrication process as solid material aswell as two-stage process as a sandwich composite of required performance. Thedemonstrated results revealed that high quality and glossy finish composites under singlestage operating condition can be achieved using about 60% agro-industrial wastes.

     

    Theinnovative composite materials have a variety of application potential for infrastructure in theconstruction sector, locomotive (train) and other transport systems (Bus, ship,etc.) andinfrastructure as doors, false ceilings, flooring, architectural wall panels, partition andfurniture etc. The evergreen hybrid ply and composite wood are stronger and environmental-friendly. “It is resistant to weather, corrosion, water, moisture and is a termite and fungus free composite. The composite materials are fire retardant, self- extinguishing in nature, cost effective and maintenance free materials. Evergreen Hybrid Ply and Composite Wood has potential to be used as an alternate material for wood / timber, plastic, synthetic wood such as MDF Board, particle board and ply wood and all other conventional materials used in the furniture industry. Addition of agro-industrial wastes particulates and fibres enhance the surface finish, density, flexural modulus and resistance to abrasion” says the statement issued by the institution. Recently the technology transfer has been done by AMPRI to M/s. Shubh Green Sheet Pvt Ltd, Bhilai.

    (India Science Wire)


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