Textile Products Sweating Guarded Hotplate Testing Principle Analysis

Sweating guarded hotplate testing is commonly used testing method in clothing and apparatus industry for textile products heating or humidity resistance performance. Textile features testing plays quite practical and significant role in textile industry. 

Textile products sweating guarded hotplate testing principle: 
Sample is placed on electronic heating experiment board, at the same time, experiment board and the protecting board at bottom should be kept with the same temperature so that heating loss of electronic heating experiment board only due to sample itself; the wet air can flow parallel in the surface. After the experiment environment is being stable, we can calculate the sample heating resistance by way of its heating flow. 

For wet resistance, we should cover electronic heating experiment board with film which is permeable to air rather than water. The water goes through film in the form of steam after evaporated and thus there is no liquid water contacting samples. After the sample is placed on the film and under the condition that the heating of electronic heating board needed is ensured, we can test the heating flow sample wet resistance together with the exerted steam pressure.

 

For more sweating guarded hotplate or textile testing instruments information, QINSUN Instruments are ready for help.