![]() Perkin-Elmer DMA 8000 -190-600☌ 10,0.002 10 nm 52 mm Fluid bath (-196-150☌), humidity generator, reactive gas capability, vertical and horizontal operation, additional probes compression, shear, single/dual cantilever, parallel plate, powder pocket. The Perkin-Elmer DMA-7e has been successfully adapted. One normally has to adapt a commercial DMA to run these experiments. The major practical difficulty in running photocures in the DMA is the current lack of a commercially available photocuring accessory, comparable to the photocalorimeters on the market. The Perkin Elmer DMA system is shown schematically in Figure 17.78 and applies the load in 3- point bending to high modulus materials via a linear foree motor and ean determine measurements up to 1000☌. Samples were maintained in a conditioned room, 50% relative hiunidity and 23 ☌, for 10 days before testing. Three point bending scan were performed using a static-to- dynamic stress ratio of 110% at 1 Hz frequency and a heating rate of 5 ☌/min. ![]() ![]() Gelatin sheets were analyzed by means of a dynamic-mechanical analyzer from Perkin-Elmer DMA-7. ![]()
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