Experimental device for solution droplet research

Abstract

The invention provides an experimental device for the solution droplet research. The experimental device comprises a combustion tray used for placing a polymer material, a radiometer is fixed above the combustion tray, the upper end and one side of the combustion tray are open, a flow tray capable of adjusting the inclination angle is arranged below the open side, and a thermocouple bundle is arranged on the flowing tray along a flowing path. The test material is placed in the combustion tray, the material is melted through radiation heating of the radiometer, the material in the molten state drips down from the opening in the side face of the combustion tray and falls into the flowing tray, and the flowing characteristic of the material in the molten state can be obtained by adjusting the inclination angle of the flowing tray; and the temperature condition of the material at the position where flowing is not allowed is collected based on the thermocouple beam, so that the flowing characteristic of the molten material is conveniently researched, the characteristic of flowing fire can be directly researched in an open fire state according to needs, and fire behavior development and material characteristics are conveniently researched.

Description

technical field [0001] The invention relates to the technical field of melt dripping experiments, in particular to an experimental device for research on melt dripping. Background technique [0002] Thermoplastic polymer materials and some thermosetting polymer materials, such as thermoplastic polyurethane elastomers, polyurethane foams, etc., will appear molten flowing substances or dripping phenomena during the thermal decomposition process, that is, the phenomenon of melt dripping, which is very important for polymer materials. The flame retardancy and fire dynamics have important significance. On the one hand, the molten substance produced during the decomposition process of the polymer material is a necessary condition for the intumescent flame retardant polymer material to form an expanded carbon layer. On the other hand, the dripping of the melt It will make the material exposed to the fire source and cannot protect the material. At the same time, the dripping melt is...

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Problems solved by technology

However, this device can only study the dripping characteristics of thermoplastic materials, and cannot be used to study the flow characteristics of dripping objects, nor can it be used to study the development of flowing fire in a fire state

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