Propylene glycol confers relatively good resistance to extraction by cyclohexane, while butylene glycol provides lower migration property, neopentyl glycol covers the advantages above.

• 耐久性是聚酯增塑剂的重要性能．二元醇对耐久性有一定的影响，用1，2-丙二醇合成的聚酯增塑剂耐油性较好，用丁二醇耐迁移性较好，新戊二醇兼有两者之