Open AccessInfluence of aggressive media on mechanical properties of wood-polymer composites
Author(s) -
Т. B. Жданова,
Е. М. Чайка,
Т. А. Мацеевич,
Е. С. Афанасьев,
А.А. Аскадский
Publication year - 2020
Publication title -
plastičeskie massy
Language(s) - English
Resource type - Journals
ISSN - 0554-2901
DOI - 10.35164/0554-2901-2020-7-8-16-20
Subject(s) - materials science , polyvinyl chloride , composite material , filler (materials) , wood flour , shore durometer , izod impact strength test , polymer , flexural strength , fire retardant , ultimate tensile strength
Mechanical properties of two samples of decking boards were measured after exposure in rain and chlorinated water, in ice, and in a mixture of gasoline and water in dierent concentrations from 1 to 7%. Samples consisting of 60% wood flour, 30% polyvinyl chloride and 10% additives were used for measurements. Additives are flame retardants, stabilizers, modifiers and dyes. The mineral filler CaCO3 was used as modifiers. For sample №1, the CaCO 3 content was 42% and the wood content was 18%. For sample №2, the CaCO 3 content was 24% and the wood content was 36%. As a result of measurements after exposure for 150 days, it was found that the specific impact strength increases by 120%, the bending strength decreases by 60%, and the Shore D hardness decreases by a maximum of 10%. Consequently, decking boards can be confidently used for a long time, since a number of properties almost do not change, but even increase, and some decrease in strength remains within acceptable values.