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Do you really know what the PE pipe manufacturer said to you about water pipes?
Release time:
2023/3/14 8:44:37 |
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Were it not for the senior personnel of the professional PE pipe manufacturers to warn us of these contents, we may not be clear, about PE pipe, namely polyethylene, its main use is very wide, here will not say more, now we key to talk about the PE pipe few people know these contents.
1. What kinds of PE can be divided into according to the relative density of resin?
High density polyethylene LDPE (0.9 ~ 0.93g/cm3) is composed of ethylene single homopolymer;
Medium density polyethylene (MDPE) (0.93-0.94 g/cm3) is composed of ethylene and α-cyclohexanol copolymer;
High density polyethylene HDPE (0.94 ~ 0.965 g/cm3) is composed of ethylene and a little pe, butene, hexene single copolymer.
2. Which kinds of PE can be divided into according to long-term hydrostatic strength?
It can be divided into PE32, PE40, PE63, PE80, PE100, and most of the applications in water are PE80 and PE100.
3. How is the intensity classification obtained?
ISO9080 requires that in the long-term hydrostatic strength experimental operation after 20℃, the hydrostatic strength MRS Of the small requirements of raw materials should be defined and multiplied by 10 to obtain the grade of raw materials. MRS Refers to the small requirement of hydrostatic strength of raw materials under the condition of 20℃ and 50 years. |
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