期刊
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
卷 25, 期 1, 页码 119-127出版社
BRAZILIAN SOC CHEMICAL ENG
DOI: 10.1590/S0104-66322008000100013
关键词
CNSL; thiophosphorated compound; antioxidant
The present work shows the aspects related to the synthesis and thermogravimetric analysis of thiophosphorated and phosphorated compounds from hydrogenated cardanol. Studies on thermal-oxidative stability were investigated, using a classical thermoanalytical-thermogravimetric method (TG/DTG) in an air atmosphere. Its use as an antioxidant additive in hydrogenated naphthenic NH10, NH20 and NH140 oils was evaluated. The addition of 1.2% synthesized compounds to the oils has improved their thermal-oxidative stability by 5-15 degrees C. The occurrence of major thermal degradation events at higher temperatures (T-max) in additivated oils is a good indication of the antioxidant properties of the thiophosphorated and phosphorated cardanol compounds antioxidant properties.
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