ISO 1409:2020 塑料/橡胶 聚合物分散体和橡胶乳液（天然和合成） 表面张力的测定

标准编号：ISO 1409:2020

中文名称：塑料/橡胶 聚合物分散体和橡胶乳液（天然和合成） 表面张力的测定

英文名称：Plastics/rubber — Polymer dispersions and rubber latices (natural and synthetic) — Determination of surface tension

发布日期：2020-08

标准范围

本文件规定了测定聚合物分散体和橡胶乳液（天然和合成）表面张力的两种方法。-方法A是环法（Du Noüy环法）。-方法B为平板法（Wilhelmy平板法）。方法A适用于粘度小于200 mPa·s的聚合物分散体和橡胶乳液。方法B不适用于含有阳离子表面活性剂的聚合物分散体和橡胶乳液。方法A和B也适用于预硫化乳和复合材料。如有争议，首选方法是方法A（环法）。

This document specifies two methods for the determination of the surface tension of polymer dispersions and rubber latices (natural and synthetic).— Method A is the ring method (Du Noüy ring method).— Method B is the plate method (Wilhelmy plate method).Method A is suitable valid for polymer dispersions and rubber latices with a viscosity less than 200 mPa·s.Method B is not suitable for polymer dispersions and rubber latices containing cationic surfactants.Methods A and B are also suitable for prevulcanized latices and compounded material.In case of dispute, the preferred method is method A (the ring method).

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