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Studies on the use of nano zinc oxide and modified silica in NR, CR ...

Studies on the use of nano zinc oxide and modified silica in NR, CR ...

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Chapter 8<br />

8.7 C<strong>on</strong>clusi<strong>on</strong>s<br />

170<br />

1. The compounds with IPPD <strong>modified</strong> RH<strong>silica</strong> exhibited higher cure<br />

rate than compounds with neat RH<strong>silica</strong>. From <strong>the</strong> <strong>in</strong>dustrial view<br />

po<strong>in</strong>t, this is an advantage s<strong>in</strong>ce time <strong>and</strong> energy c<strong>on</strong>sumpti<strong>on</strong> dur<strong>in</strong>g<br />

producti<strong>on</strong> could be reduced.<br />

2. The overall mechanical properties <strong>of</strong> vulcanizates with IPPD <strong>modified</strong><br />

RH<strong>silica</strong> were found to be better than vulcanizates with neat RH<strong>silica</strong>.<br />

These properties are tensile modulus, tear strength, abrasi<strong>on</strong><br />

resistance, compressi<strong>on</strong> set <strong>and</strong> hardness. Thus IPPD <strong>modified</strong><br />

RH<strong>silica</strong> has great potential for <strong>use</strong> as re<strong>in</strong>forc<strong>in</strong>g filler <strong>in</strong> natural<br />

rubber products.

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