1. INTRODUCTION Investigations into the degradation of ... - www-eng
1. INTRODUCTION Investigations into the degradation of ... - www-eng
1. INTRODUCTION Investigations into the degradation of ... - www-eng
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Table 2b<br />
General classification <strong>of</strong> <strong>the</strong>rmoset resins and composites with respect to <strong>the</strong>ir radiation resistence<br />
Epoxy, glass laminate<br />
Phenolic, glass laminate<br />
Phenolic, mineral filled<br />
Aromatic cured epoxy (special formulation)<br />
Silicone, glass-filled<br />
Silicone, mineral-filled<br />
Polyester, glass filled<br />
Polyurethane (PUR)<br />
Polyester, mineral filled<br />
Silicone (unfilled)<br />
Epoxy (EP)<br />
Phenolic (unfilled)<br />
Melamine-formaldehyde (MF)<br />
Urea-formaldehyde (UF)<br />
Polyester (unfilled)<br />
Aniline-formaldehyde (AF)<br />
mild to moderate damage, utility is <strong>of</strong>ten satisfactory<br />
moderate to severe damage, use not recommended<br />
10 3 10 4 10 5 10 6 10 7 10 8 Gy<br />
These appreciations can only serve as a general guideline; environmental conditions such as temperature,<br />
humidity and dose rate, as well as additives influence <strong>the</strong> radiation behaviour <strong>of</strong> materials.<br />
Fibre reinforced composites based on <strong>the</strong>se resins can be at least one order <strong>of</strong> magnitude better<br />
(see Appendix 3).
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