Chemistry Reference
In-Depth Information
that here the phenomena such, as degradation of iPP in conditions of
the high-temperature processing change of semicrystal structure of iPP
may have occurred. In order to compare the properties of iPP/Engage I
blend with content of 55/45%, produced with periodical method and in
the one-stage or two-stage continuous process, a series of tests with use
of the general formula was performed. Properties of the selected blends
cross-linked with the silane A-174/dicumyl peroxide (TE-1) and silane
A-172/dicumyl peroxide (TE-2) systems have been listed in Table 8.5.
FIGURE 8.6
DSC curves of (1) PP, (2) PP/EOE dynamically cross-linked 55/45%.
TABLE 8.5
Selected Properties of PP and Dynamically Cross-Linked PP/EOE Blend PP/
EOE (55/45%) in the Reactive Processing
Properties
PP
TE-1
(Silane
A-174)
TE-2
(Silane
A-172
Yield point, MPa
31.4
12.1
12.5
Relative elongation of yield point, %
9.4
25.1
33.0
Tensile strength, MPa
15.1
15.5
18.3
Elongation at the tear off, %
196
443
440
