QUV accelerated weathering tester

Transparent PVC plates were coated with a 70 pm thick film of an epoxy-acrylate resin containing 0.5 % of a benzotriazole UV absorber. They were first UV cured for one second and then exposed at 40°C to the low intensity radiations of a QUV accelerated weathering tester. The extent of the degradation was followed by Invisible spectroscopy, a very sensitive method that permits detec-... 

Figure 22.6. Accelerated weather testing, (a) Xenon arc Fade-Ometer. (Courtesy of Atlas Electric Devices Company.) (b) Fluorescent lamp QUV accelerated weathering tester. (Courtesy of Q-Panel Company.) (c) Xenon arc Weather-Ometer. (Courtesy of Atlas Electric Devices Company.)...

Figure 6.5 Time evolution of the FTIR spectra of QUV (accelerated weathering tester) films containing 0.10% Mn Al-LDH-stearate. Reprinted from Polymer Degradation and Stability, Vol. 94, Bhelki Magagula, Nontete Nhlapo and Walter W. Focke, Mn Al-LDH-and COjAl-LDH stearate as photodegradants for LDPE film, pp. 947-954, 2009, with permission from Elsevier.

Operating manual QUV Accelerated Weathering Tester , provided by the Q-panel company. 

It is also possible to test the resistance to humidity by submitting bonded samples to an accelerated weathering tester such as the QUV spray tester, which combines water spray and condensation plus UV light to simulate sun rays. We will study this in the Weathering section hereunder. 

Samples from the above sheets were exposed to accelerated aging conditions, using the appropriate weatherom-eter chamber, type QUV-Weathering Testers (Q-Panel, Lab Products). 

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