Yongzhou PE socket pipe fittings | PE pipe fittings specially used by Yongzhou Water Supply Company

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PE pipe fittings Density determination of HDPE The main variables of characteristics, although the four mentioned variables do play an interactive role. ethylene It is the main raw material of polyethylene, and a few other comonomers, such as 1-butene, l-hexene or 1-octene, are also often used http://www.zbpeg.com It is used to improve polymer properties. For HDPE, the content of the above few monomers generally does not exceed 1% - 2%. The addition of comonomer slightly reduced the crystallinity of the polymer. This change is generally measured by density, density and crystallinity http://www.sdpegj.com Linear relationship. US General Classification by AS According to TMD1248, the density of HDPE is 0.940g/. C or above; Medium density polyethylene（ MDPE ）The density range is 0.926~0.940g/CC. Other classifications sometimes classify MDPE as HDPE or LLDPE. Homopolymers have high density, high stiffness, good impermeability and high melting point, but generally have poor resistance to environmental stress cracking (ESCR).