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| The impact resistance of SEKISUl PVC-HA is somewhat inferior to that of PVC,
but it can be improved by adding the impact strength modifier such as ethylene
• vinyl acetate-PVC graft copolymer, CPE, ABS, MBS, etc. Chart 1 shows SEKISUl
PVC-HA's Charpy impact strength vs. addition of MBS based modifier, and Chart
2 shows the thermal dependency of SEKISUl PVC-HA's Charpy impact strength when
10 parts in weight of MBS are added. |
| Chart 1 |
Chart 2 |
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| As can be seen from Charts 1 and 2, SEKISUl PVC-HA requires addition of with
5-15 parts in weight of modifier such as MBS in order to give the same impact
resistance as ordinary PVC. |
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