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.
1. Jankauskaite, V. Polyethylene terephthalate waste recycling and application possibilities: Areview [Text] / V. Jankauskaite, G. Macijauskas, R. Lygaitis. Medziagotyra. - 2012. - No. 14. - Pp. 119-127.
2. Polymer matrix influence on stability of wood polymer composites [Text] / R. Porebska, A. Rybak, B. Kozub, R. Sekula. Polymers for Advanced Technologies. - 2015. - No. 26. - Pp. 1076-1082.
3. Flat-pressed wood plastic composites from sawdust and recycled polyethylene terephthalate (PET): Physical and mechanical properties [Text] / K.-S. Rahman, M. N. Islam, M. M. Rahman, M. O. Hannan, R. Dungani, H. P. S. A. Khalil. SpringerPlus. - 2013. - No. 2. - Pp. 1-7.
4. Binici , H. Mechanical, thermal and acoustical characterizations of an insulation composite made of biobased materials [Text] / H. Binici, O. Aksogan, C. Demirhan. Sustainable Cities and Society. - 2016. - Vol. 20. - Pp. 17-26.
5. Lykov, A. V. Teoriya teploprovodnosti [Tekst] / A. V. Lykov. - M. : Vyssh. shk., 1967. - 600 s.
6. Lykov, A. V. Teoriya sushki [Tekst] / A. V. Lykov. - M. : Energiya, 1968. - 472 s.
7. Okereke, M. I. Virtual testing of advanced composites, cellular materials and biomaterials: A review Original Research Article[Text] / M. I. Okereke, A. I. Akpoyomare, M. S. Bingley. Composites Part B: Engineering. - 2014. - Vol. 60. - Pp. 637-662.
8. Lu, X. Fibrous insulation materials in building engineering applications [Text] / X. Lu, M. Viljanen. Fibrous and Composite Materials for Civil Engineering Applications. - 2011. - Pp. 271-305.
9. Storodubtseva, T. N. Osobennosti matematicheskogo modelirovaniya drevesnogo polimer-peschanogo kompozita [Tekst] / T. N. Storodubtseva, A. A. Aksomitnyy. Lesotekhnicheskiy zhurnal. - 2014. - № 4. - S. 131-139.
10. Storodubtseva, T. N. Issledovanie vliyaniya sostava drevesnogo polimer-peschanogo kompozita na ego mekhanicheskie svoystva [Tekst] / T. N. Storodubtseva, A. A. Aksomitnyy. Vestnik Moskovskogo gosudarstvennogo universiteta lesa - Lesnoy vestnik. - 2015. - T. 19. - № 6. - S. 132-139.
