凝胶时间测定仪操作手册

APPLICATION: The GEL TIME METER is a self-indicating device for measuring the gel time of a thermosetting fluid composition, i.e., the time at a constant temperature for the material to reach the incipient gelled state. This point is usually characterized by a sudden, pronounced increase in the viscosity of the material. It is registered by the instrument through the closing of an electrical gap actuated by the torsion exerted on a slowly rotating spindle suspended in the test sample. Materials exhibiting this thermosetting property, by which they may be evaluated, include monomers, resins, potting compounds, melamine formaldehydes, styrenes, waxes, varnishes, unsaturated oils (i.e. tung oil) etc.