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Gel Time Meter 22A-240/50 (단종)
The precise, convenient way to determine Gel Time of thermosetting compounds in accordance with ASTM D3056-85 The determination of the gelation point for thermosetting compounds is critical in evaluating the rate of polymerization for materials such as resins, waxes, varnishes, styrenes, monomers, potting compounds, melamine, formaldehydes, unsaturated oils, thermosetting foodstuffs, and other polymerizable materials. The gelation point is usually characterized by a sudden, pronounced increase in material viscosity (thickness).
The gelation point can help determine shelf life of a substance by plotting the log of gel time vs.1/t (absolute temperature). Simply determine gel times at two or more elevated temperatures and extrapolate to ambient. The points should fall into a straight line. A Gel Time meter provides a highly reliable means for measuring the gel time defined as the time for the material under test to reach the incipient gelled state at a constantly, controlled temperature.
Model 2295A Digital Temperature Controller
The Model 2295A provides the ultimate in safe, automatic, variable temperature control. It is the ideal way to provide temperature bath control for gel time testing. Simply set the front panel to the desired set point (up to 315° C) and the 2259A maintains precise temperature regulation to within ?0.2° C after temperature stabilization.
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