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Polimero - ezio martuscelli

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SYMPTOMS OF POLYMER<br />

DEGRADATION<br />

¦ lowering of thermal, mechanical, optical<br />

and electrical properties;<br />

¦ viscosity reduction/increase;<br />

¦ yellowing and discoloration;<br />

¦ embrittlement;<br />

¦ tackiness;<br />

¦ loss of surface gloss;<br />

¦ surface crazing;<br />

¦ surface chalking;<br />

¦ loss of functional characteristics.<br />

¦ release of volatile products.

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