Detailed explanation of the hottest plastic barrel
2022-08-21- Detail
Details of plastic barrel materials
details of plastic barrel materials
blow molding grade hollow plastic containers are made of low-pressure high-density polyethylene, that is, HDPE, high density polyethylene (HDPE), which is a thermoplastic resin with high crystallinity and non polarity. The appearance of the original HDPE is milky white and translucent to a certain extent in the thin section. PE has excellent resistance to most domestic and industrial chemicals. Some kinds of chemicals will produce chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is non hygroscopic and has good water vapor resistance, which can be used for packaging purposes. HDPE has good electrical properties, especially the high dielectric strength of insulation, which makes it very suitable for wires and cables. Medium to high molecular weight grades have excellent impact resistance, even at room temperature and -40f low temperature. The unique characteristics of various grades of HDPE are the appropriate combination of four basic variables: density, molecular weight, molecular weight distribution and additives. Different catalysts are used in the preheating device: there are three different types of catalysts? HRA: it is the hardness obtained by using 60kg load and diamond cone press. The preheating of cable core is necessary for insulation extrusion and sheath extrusion. The specialty of production customization is to officially sell energetic polymers from September 30. These variables combine to produce HDPE grades for different purposes; Achieve the best balance in performance
HDPE is non-toxic, tasteless and odorless white particles, with a melting point of about 130 ℃ and a relative density of 0.941~0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties, environmental stress cracking resistance is also good
melting temperature 220~260 ℃. For materials with large molecules, it is suggested that the melting temperature range is 200~2qb/t 1130 ⑼ 1 plastic right angle tearing property test method 50 ℃
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