pe pipes pay more attention to details when purchasing. […]
pe pipes pay more attention to details when purchasing. The most important thing in the pe product data information is the relative density size. The product problem is not easy to occur only when the relative density meets the requirements. However, different pipeline types have different requirements for relative density. So, let us take a closer look at today's introduction to relative density.
1. The material added during the production of the pipe can include a part of copolymer, and a part of aggregate material can also be added to improve the characteristics.
2. After adding the comonomer, the crystallinity of the aggregate material is slightly reduced. Generally, this kind of transformation is accurately measured according to the relative density. The relative density of the pe tube usually has a linear relationship with the crystallization rate.
3. Single polymers generally have high relative density, high rigidity, and high water permeability, but their ability to resist environmental stress cracking is relatively weak.
4. ESCR refers to the ability of the pipeline to bear the cracks caused by mechanical equipment or chemical geostress. In addition, the mechanical strength, which is generally relatively dense, can be improved. For example, the relative density of high tensile strength and stiffness are also relatively high. Naturally, in our selection, we must also pay attention to the thermal characteristics, such as the heat distortion temperature of the pipe. This is a very important consideration. And water permeability is also a very basic requirement for pipes.