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HLB 值

HLB 值. 亲水亲油平衡值(HLB值)的含义. 表面活性剂亲水亲油性的强弱 (表示表面活性剂的亲水疏水性能) 简称HLB值. 一些常用表面活性剂的HLB值列于表4-3。非离子表面活性剂的HLB值具有加和性。计算公式如下:. 石蜡 HLB值=0 (无亲水基) 聚乙二醇 HLB值=20 (完全亲水). 表4 - 3. 重要性: 表面活性剂分子是由亲水基团和亲油基团所组成,定向排列降 低界面张力. HLB 值既体现表面活性分子中亲水和亲油基团对水或油的综合亲和力。. 亲水亲油平衡值HLB值. 比较及结论.

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HLB 值

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  1. HLB 值

  2. 亲水亲油平衡值(HLB值)的含义 表面活性剂亲水亲油性的强弱(表示表面活性剂的亲水疏水性能) 简称HLB值 • 一些常用表面活性剂的HLB值列于表4-3。非离子表面活性剂的HLB值具有加和性。计算公式如下:

  3. 石蜡 HLB值=0 (无亲水基) 聚乙二醇 HLB值=20 (完全亲水) 表4 - 3

  4. 重要性: 表面活性剂分子是由亲水基团和亲油基团所组成,定向排列降 低界面张力 HLB值既体现表面活性分子中亲水和亲油基团对水或油的综合亲和力。 亲水亲油平衡值HLB值 • 比较及结论

  5. 表面活性剂的HLB值越大,其亲水性越强; HLB值越小,其亲油性越强。 如:司盘类是亲油性,其HLB值在1.8-8.6之间 聚山梨酯类是亲水性,其HLB值在9.6-16.7之间 十二烷基硫酸 钠的亲水性更强,HLB值为40.

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