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As the leather is widely used in the interior of the car, the content of leather volatile material in recent years has also been used as an important indicator of a car interior detection, and its direct impact of its direct impact The internal environment and driving safety of the car. Volatile substances will be condensed into fog on the windshield when heated. This phenomenon is called foggy, and condensate is called condensed group division. Therefore, the content of volatile substances can be characterized by atomization performance.
Under normal circumstances, the atomization performance is tested by atomization experiments. The reference current execution standard is QB/T 2728-2005 Measurement of the Mistor and Mechanical Test atomization Performance, which is commonly used. The detection method is the luster method and weight method. Science
Experimental Principles
Putting the skin-like sample of the testing skin on the test of the tested skin on the sample Heating in the foggy cup, its volatile group is condensed on the glass sheet of the same material as the car windshield as the car, and then measured the gloss before and after the glory meter condensed. The required atomization value (gloss method).
Select a sample that can be adjusted according to the material performance of the material: the leather sample uses a round sample of the specified size, leather Fans are indeed called 10 plusmn; 0.1g.
The glossityLaw
Place the prepared samples in the clean foggy cup At the bottom, put the pressure ring on the sample. The bottle mouth is sealed with a supporting fluorine rubber sealing ring, put it on the sealing ring, clean it in advance and measures the glass plate with the gloss value R0. filter paper.
Put the prepared glass into the host that has been risen to the experiment, put the cooling version corresponding to the glass on the filter paper. Note that you should not touch the sample and instruments in the whole process.
After the time specified by the sample test, remove the glass plate and put it in the adjustment of the prefabricated condition to measure the gloss value of the luster after the fog.
The gloss method
Experimental results and school pairs
The fog value of the sample fr
1/ r 0 (represented by percentage). In the same way, it should be used in the same way to perform blank fog cups (without samples). The F value should be more than 99%to confirm whether the glass instrument and other auxiliary supports used in the experiment are clean. At the same time, the DIDP reagent must be used instead of the sample to perform the DIDP control test. The F value should be 77 plusmn; 3%to ensure the accuracy of the working conditions and operation of the experimental instrument.
I believe that through the explanation of the luster method, everyone I have a certain understanding of atomizing tests. At present, through the atomization test of the interior decorative materials of the car, it can not only achieve the control of volatile substances in the car interior materials, but also has become an important means for the control of the product quality of automobiles and car interior materials to control the quality of the product. It is necessary to master certain detection methods for this.
