Abstract:
The influence of two-component polydispersed filler on the elasticity modulus in flexure and impact
resilience
of the developed epoxy-polyester composite is analyzed. Regression equation by applying the
mathematical design of experiment is found and dependence of output parameters on chosen variable
factors is determined. It is proved that introduction of two-component polydispersed filler (in
contents of mica – q = 20. . . 30 pts.wt., nitride boron – q = 40. . . 60 pts.wt.) in composite
allows to increase significantly parameters of elasticity modulus in flexure to Е = 7.2. . . 7.6
hPa with slight decrease of impact resilience to W = 4.6. . . 4.8 kJ/m2. Theoretical analysis of
the calculation results of functional relationships is carried out and mathematical model that
properly describes behavior of the investigated material is found. Optimal content of main and
additional fillers in composite for each property is established using found regression equations.
It is determined that composite material in contents of mica q = 20. . . 30 pts.wt. and of nitride
boron
q = 40. . . 60 pts.wt. has optimal parameters.
