Open AccessThe influence of the Content and Dispersity of Aluminum Hydroxide on the Properties of Siloxane Sealants
Author(s) -
А. Р. Курбангалеева,
Yu. N. Khakimullin,
С. И. Вольфсон,
R.N. Gadelshin,
P. V. Ponomarev
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/753/5/052033
Subject(s) - siloxane , materials science , sealant , hydroxide , viscosity , dispersity , aluminium , adhesive , rheology , particle size , composite material , dispersion (optics) , aluminium hydroxide , chemical engineering , polymer chemistry , polymer , physics , optics , layer (electronics) , engineering
The influence of the content of aluminum hydroxide of various degree of dispersion on the rheological, physical-mechanical and adhesive properties, thermal and fire resistance of siloxane sealants was studied. It was established that the main factor determining the effectiveness of the use of aluminum hydroxide in siloxane sealants is the degree of dispersion. The introduction of aluminum hydroxide makes it possible to vary widely the viscosity of the sealant compositions, while with decreasing of particle size of aluminum hydroxide the viscosity of the compositions increases. The use of aluminum hydroxide with a minimum particle size makes it possible to obtain siloxane sealants with the most optimal level of physical-mechanical and adhesive properties, however, to increase the thermal and fire resistance of sealants, coarse aluminum hydroxide is most preferred.