Oxidation induction time analyzer is a common thermal analysis instrument used to measure the thermal stability and oxidation stability of materials. The OIT test method can evaluate the thermal degradation process of a sample by measuring its oxidation induction time at high temperature, thereby obtaining important information about the stability and durability of the material.
OIT testing typically use differential scanning calorimetry (DSC), a technique that measures the thermal degradation temperature and reaction rate of a sample at elevated temperatures under a predetermined oxygen pressure. DSC technology is an test method based on the thermal response of the sample. It is a very reliable measurement method that can detect the thermal stability and oxidation stability of the sample.
The instrument structure of OIT analyzer mainly includes sample heater, differential thermal analysis sensor, test chamber, temperature control device and computer control system and other components. There are also certain steps to run the instrument. First, the sample is made into a gyroscope shape of a certain size, and then it is preheated to a certain temperature by the instrument. At the same time, the atmosphere is pre-set in the instrument to make it reach the required oxidation pressure, and then the sample is inserted into the test chamber for heating.
Differential Scanning Calorimeter
During the test, the sample will undergo an oxidation reaction and release heat, resulting in an increase in the temperature of the sample. At this time, the differential thermal analysis sensor can measure the heat change of the sample, which is realized by acquiring the sample temperature and analyzing the change of the blue line through the scanner. According to the thermal degradation process of the sample at high temperature, the oxidation induction time of the sample can be calculated.
The OIT analyzer has a wide range of applications and is especially suitable for studying the thermal degradation process of various polymer materials, which can provide scientists with important information about the stability, performance and service life of materials. In addition, OIT analyzers can also be applied to the analysis and research of other materials and products that require stability and durability information.
In a word, the oxidation induction time analyzer is an important thermal analysis instrument, which provides important information for the study of material stability, performance and life by measuring the thermal degradation process of samples under high temperature conditions. OIT analyzers have a wide range of applications in the field of polymer and other material research.
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