| 摘要 |
PROBLEM TO BE SOLVED: To provide an accurate and simple method for the quantitative analysis of an additive, specifically an antioxidant, included in polyolefin, which simply and efficiently extracts an additive, specifically an antioxidant, analyzes it with a high extraction rate, and does not cause the extraction rates of other additives to decline either.SOLUTION: Provided is the method for the quantitative analysis of the additive included in polyolefin, the method characterized in that it includes an operation for impregnating a polyolefin sample in a mixed solvent and extracting it, the mixed solvent including a non-polar solvent (A) whose SP value (solubility parameter) is 6-10 and dielectric constant (20°C) is 0-4.5 or less or dipolar moment is less than 1 and a micropolar solvent (B) whose SP value is 6-10 and dielectric constant (20°C) is 4.5 or greater or dipolar moment is 1 or greater.SELECTED DRAWING: None |
