EFFECT OF MODIFICATION OF BENTONITE BY TETRAETHOXYSILANE ON THE PROPERTIES OF COMPOSITES BASED ON EPOXY RESIN

摘要

Ultimate strength, softening temperature, and water absorption of the polymer composites based on dian epoxy resin (type ED-20) and unmodified and modified by tetraethoxysilane mineral bentonite are described. Comparison of experimental results obtained for investigated composites shows that those containing modified filler have higher values of the parameters mentioned above than composites with unmodified filler at definite loading. The maximum of ultimate strength for composites with modified filler is higher than that for composites with unmodified filler. First composites have also higher softening temperature and lower water absorption. Experimental results are explained in terms of structural peculiarities of polymer composites.