Device for measuring variation of internal temperature during combustion of polymer material

A technology of polymer materials and internal temperature, applied in the field of experimental devices, can solve the problems of lack of experimental devices and methods, and achieve the effects of low manufacturing cost and simple operation

Inactive Publication Date: 2015-11-18
HENAN UNIV OF SCI & TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, this traditional research method is only a qualitative theoretical analysis. To what extent the carbon layer generated during thermal decomposition of polymer materials can prevent heat transfer and protect materials from flames. There is no reliable research at home and abroad. Experimental device and method

Method used

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  • Device for measuring variation of internal temperature during combustion of polymer material
  • Device for measuring variation of internal temperature during combustion of polymer material
  • Device for measuring variation of internal temperature during combustion of polymer material

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Embodiment Construction

[0021] A device used to measure changes in internal temperature when polymeric materials are burned, such as figure 1 As shown, there is a fixed seat 4 for fixing the polymer material sample 1, a flame injection device 5 capable of spraying flames on the surface of the polymer material sample 1 and a real-time measurement of the polymer material sample 1 at A digital recorder 6 for the internal temperature when burning under the action of a flame. The polymer material sample 1 is embedded with a thermocouple 2 , and the thermocouple 2 is connected to the digital recorder 6 through a thermocouple compensation wire 3 .

[0022] Wherein, in order to adjust the angle between the upper surface of the polymer material sample 1 and the flame ejected from the flame spraying device 5, as figure 1 with figure 2 As shown, the fixed seat 4 is also provided with an angle adjustment device 7 for adjusting the inclination angle of the polymer material sample 1 . And in order to adjust the...

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Abstract

The invention discloses a device for measuring the variation of internal temperature during combustion of a polymer material. The device comprises a fixing seat for fixing a polymer material sample, flame-jet equipment for jetting flame onto the surface of the polymer material sample, and a digital recorder for measuring the internal temperature during combustion of the polymer material sample under the action of flame, wherein a thermocouple is embedded in the polymer material sample, and connected with the digital recorder through a thermocouple compensation wire. The device is relatively low in manufacturing cost and relatively simple to operate, and can be utilized for measuring and recording the dynamic variation of the internal temperature with time during combustion of the polymer material under the action of flame in an in-situ and real-time manner, and quantitatively expressing the impact of the behavior of material combustion into charcoal on heat transfer according to experiment data. Therefore, a brand-new quantitative analysis and expression method is provided for research on flame-retardant polymer materials.

Description

technical field [0001] The invention relates to an experimental device, in particular to a device for measuring the internal temperature change of a polymer material when it is burned. Background technique [0002] One of the main problems in the practical application of organic polymer materials such as plastics, rubber, and fibers is flammability. How to test the flame retardancy of polymer materials is one of the important research directions in this field. At present, there are many experimental methods used to characterize the combustion performance of polymer materials at home and abroad. The flame retardant mechanism of materials, especially in the condensed phase, is often determined by the char formation behavior of materials (the amount of char formation and the quality of the char layer). ) for analysis. It is generally believed that if the amount of carbon residue generated during material combustion or thermal decomposition is greater, and the surface of the ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/22G01K7/02
Inventor 刘继纯董嘉更张炎斌魏风军杨委元崔方艳崔争卢斌伟
Owner HENAN UNIV OF SCI & TECH
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