Research on Factory Testing Method for Rubber Antioxidant BLE-W
Taking gas chromatography-mass spectrometry(GC-MS),Fourier transform infrared spectroscopy(FTIR)and thermogravimetric(TG)analysis method,a qualitative and quantitative method for rubber antioxidant BLE-W was established.The test results showed that the established qualitative method was accurate.The relative standard deviation of the TG quantitative results of BLE and those obtained by the extraction method was below 1％.The relative standard deviations(repeated 6 times)of BLE,calcium carbonate,and silica content tests were 0.32％,3.8％,and 0.38％,respectively,all less than 4％,indicating accuracy precision and satisfactory results,which could effectively control the quality of the antioxidant BLE-W entering the factory.
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