This main aim of our research work is to develop a composite material having sound proof and thermal insulating
property, by using natural materials. Currently many synthetic materials are used to get sound proof and thermal insulated
composite material, but these materials are very harmful for our environment and also costly. So we used natural materials. In
this research work we use mixture of coir, banana and jute fibre as a reinforced material and epoxy as a binder. To prepare
composite material firstly we crushed the natural fibres, dried for 1 week in presence of sunlight after that required amount and
proportion of these natural fibres are mixed with epoxy and 4 samples were prepared. After 24 hours a hard composite material
is obtained. After that we go for testing to know whether this material possesses desired properties or not. Unitherm TM Model
2022 testing machine is used for measurement of effective thermal conductivity and for acoustic test the two mouthpiece
exchange work technique is used.
