Textile Research Journal · 1984 · 37 citations · 2 references
EngineeringMaterials EngineeringMaterials ScienceHeat TransferOptical MaterialsRadiation ProtectionEnvironmental DegradationIrradiation PreservationPolymer DegradationRadiation-resistant MaterialsTextile FinishingUltraviolet Radiation ProtectionArtificial Light ExposurePolymer Degradation Under RadiationProtection From Ultraviolet-induced DegradationTextile Damage AssessmentUltraviolet DegradationUv Damage AssessmentUv-induced DegradationUv-protective Textiles
A simple controlled-temperature irradiator is described, which permits fabric samples to be irradiated at air temperatures in the range 35°C to 85°C. Photodegradation of wool fabrics, as assessed by measurement of breaking loads, tear strengths, and yel lowness indexes, increases rapidly as the temperature of irradiation is raised, and occurs 3 to 4 times faster at 75°C than at 35°C. A procedure is described for assessing the level of photoprotection conferred on wool by treatment with a UV absorber of the 2-hydroxybenzophenone type. Consistent lifetime improvement factors are ob tained for most levels of photodegradation, and for exposure either to the artificial light source or to sunlight through window glass.
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