For the study and prediction of insulation properties of wood polymer-sand composite (WPSC) developed a mathematical model. It is established that the thermal diffusivity of the wood with a protective resin-sand coating, were comparable to the diffusivity of pure wood (ef-fective diffusivity 15-25 % higher). If the filler used is fragmented wood (chips, large frag-ments), the thermal diffusivity of the sample was significant, since heat is mainly distributed on the polymer-sandy channels between the pieces of wood.
wood filler, composite, mathematical model, thermal insulation.
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