Basic knowledge of high density polyethylene
High Density Polyethylene (HDPE) is a thermoplastic resin with high crystallinity and non-polarity. The appearance of the original HDPE is milky white, and the thin section is translucent to a certain extent. PE has excellent resistance to most domestic and industrial chemicals. HDPE is a high crystallinity, non - polar thermoplastic resin. High-density polyethylene is a white powder granular product, non-toxic, tasteless, density in the range of 0.940~0.976 g/cm3; The crystallinity is 80%~90%, the softening point is 125~135℃, the service temperature can reach 100℃; The melting temperature ranges from 120 ° C to 160 ° C. For materials with large molecules, the recommended melting temperature ranges from 200 ° C to 250 ° C. It has good heat and cold resistance, good chemical stability, but also has high rigidity and toughness, good mechanical strength.
It is widely used in gas transportation, water supply, sewage, agricultural irrigation, fine particle solid transportation in mine, oil field, chemical industry, post and telecommunications and other fields, especially in gas transportation has been widely used
Injection molding products: turnover boxes, bottle caps, buckets, caps, food containers, plates, bins, boxes, and plastic flowers.
Blow molding products: hollow molding products, such as all kinds of series blow molding barrels, containers, bottles, holding cleaners, chemicals, cosmetics, gasoline tanks, daily products, etc. There are blowing film products such as food packaging bags, grocery bags, fertilizer lining film, etc.
3. Extruded products: Pipes and fittings are mainly used for gas transportation, public water and chemical transportation, such as building materials drain pipe, gas pipe, hot water pipe, etc. : Sheets are mainly used for seats, suitcases, handling containers, etc.
4. Rotary molding: Injection molding products such as large containers, storage tanks, barrels, boxes, etc.
5, polyethylene can be processed into film, wire and cable sheath, pipe, all kinds of hollow products, injection products, fiber, etc. Widely used in agriculture, packaging, electronic and electrical, machinery, automobile, daily necessities and other aspects.
Sichuan Senpu pipe co., LTD. main products are: PE pipes for gas, PE pipe fittings (DN16 – DN630), PE pipes for water supply, pipe fittings (DN 16- DN 48), PP-R pipes for hot and cold water use ,pipe fittings (DN16 – DN200), PE double-wall corrugated pipe (ID200 – ID500), underground drainage with steel belt reinforced polyethylene spiral corrugated pipe (ID300 – ID1800), SRTP pipe , stainless steel pipe, Heat resistant polyethylene (PE-RT) pipes for hot and cold water, pipe fittings (DN 12 – DN 160), etc.,.
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