Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 3: Polyethylenes and polypropylenes
塑料制品;用毛细管粘度计测定稀溶液中聚合物的粘度第3部分:聚乙烯和聚丙烯
发布日期:
2010-04-15
ISO 1628-3:2010定义了在135°C稀释溶液中测定聚乙烯和聚丙烯的降低粘度(也称为粘度值)和特性粘度的特殊条件。
聚合物溶液的粘度可能会受到样品中存在的添加剂的影响。因此,如果样品含有填料或其他添加剂,则通过该方法确定的降低粘度值可能不可靠。
ISO 1628-3:2010 defines particular conditions for determining the reduced viscosity (also known as viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 °C in dilute solution.
The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced viscosity determined by this method may therefore be unreliable if the sample contains fillers or other additives.