PREPARATION OF ADHESIVE COMPOSITION BASED ON ALLYL PROPIONATE-STYRENE-MALIC ANHYDRIDE TERTIARY COPOLYMER

Abstract

Adhesive compositions based on allyl propionate-styrene-maleic anhydride ternary copolymer and ED-20 epoxy resin were prepared and some physical and physico-chemical properties of these adhesive compositions were determined. Adhesive compositions were prepared in different ratios of allyl propionate-styrene-maleic anhydride ternary copolymer and ED-20 epoxy resin (10,15, 20, 25, 30 m.f. copolymer for 100 m.f. ED-20 epoxy resin). The property of bonding duralumin plates of the glue obtained by curing under different conditions was studied. It was determined that the sliding fracture resistance of the adhesive compositions prepared in different mass ratios of the copolymer and ED-20 epoxy resin for duralumin plates was higher in the ED-20:CP=100:25 ratio. When the adhesive composition obtained in this mass ratio is cured at 140, 160, and 180 oC for 2 hours, the sliding fracture resistance for duraluminum plates was 13.8, 13.9, and 14.4 MPa. The tensile fracture resistance and dielectric properties of the adhesive composition prepared in the ratio of ED-20:CP=100:25 were determined. The tensile fracture resistance of the adhesive composition prepared in this ratio was 2.13 MPa, the dielectric permeability was 1.8 (at a frequency of 106 Hs) and the angular tangent of the dielectric loss was 45·10-3 (at a frequency of 106 Hs). The degree of swelling of the adhesive compositions prepared by curing in different mass ratios in different solvents was determined. The degrees of swelling of the adhesive composition prepared by curing in a mass ratio of 100:25 in toluene, chlorobenzene, 1,4-dioxane, and butylacetate are 0.63, 0.67, 0.75, and 4.19% respectively.