Full analysis of organic rubber chemicals

The analysis of rubber chemicals in rubber products has important practical significance.As the rubber products added more types of additives, large differences in the amount of addition, part of the assists have reacts, so the full analysis of rubber additives is a There is a higher degree of difficulty.Through medium pressure chromatography, infrared spectroscopy qualitative method, identification of ethylene-propylene rubber additives in mineral oil, phthalates, vegetable oils and other three kinds of softener, and the residual vulcanization Agent M and anti-aging agent styrenated phenol; adopting the same-phase extraction to remove the main component mineral oil in the auxiliary agent to reduce the interference to other minor additive components; and by the method of GC-MS, – Di-tert-butyl-4-methylphenol antioxidant, the remaining thiuram vulcanization accelerator, and simultaneous determination of the ethylenediamine rubber extract by gas chromatography-mass spectrometry. The remaining active substances were identified as benzoyl peroxide Formyl vulcanizing agent.The results of the study are available for the full analysis of other organic auxiliaries in rubber systems.