ISO 4901:1985 以未饱和聚脂树脂为基质的强化塑料.剩余苯乙烯单体含量的测定

标准编号：ISO 4901:1985

中文名称：以未饱和聚脂树脂为基质的强化塑料.剩余苯乙烯单体含量的测定

英文名称：Reinforced plastics based on unsaturated polyester resins — Determination of residual styrene monomer content

发布日期：1985-09

标准范围

不饱和聚酯树脂增强塑料中残留苯乙烯单体含量是评价不饱和聚酯树脂在聚合状态下固化程度的重要指标。通过使用二氯甲烷从聚合状态的UP树脂中提取残余单体苯乙烯，然后使用正丁苯作为内标物对提取物进行气相色谱分析，来进行测定。还规定了用Wijs法测定残留苯乙烯单体的替代方法。

The residual styrene monomer content in reinforced plastics based on unsaturated polyester (UP) resins is an important criterion in evaluating the degree of cure of UP resins in the polymerized state. The determination is carried out by extraction of the residual monomer styrene from the UP resin in the polymerized state using dichloromethane and subsequent gaschromatographic analysis of the extract with n-butyl-benzene as internal standard. An alternative method of determining the residual styrene monomer by the Wijs method is also specified.

标准预览图