HDPE is PE, but not all PE is HDPE. Learn the difference between high-density polyethylene and the wider polyethylene family in density, strength and uses.

HDPE thiab PE ob leeg yog ib feem ntawm tsev neeg polyethylene (PE), tab sis lawv tsis yog tib yam. HDPE yeej yog ib hom PE, tab sis tsis yog txhua PE yog HDPE. Txawm li ntawd los, hauv kev tsim kho, thaum tib neeg tham txog PE yeeb nkab, feem ntau lawv txhais tau HDPE.
Polyethylene (PE) Polyethylene yog ib hom thermoplastic uas tsim los ntawm polymerizing ethylene monomers (CH2=CH2). Raws li nws qhov ntom thiab crystallinity, nws muaj ntau hom, feem ntau muaj:
Polyethylene ntom tsawg (LDPE):
Cov yam ntxwv: Tsawg ntom (0.910-0.925 g/cm³), nrog ntau txoj hlua ceg thiab crystallinity tsawg.
Qhov zoo: Yooj yim, tiv taus kev cuam tshuam, thiab pom tseeb heev.
Kev siv: Feem ntau siv rau zaj duab xis, hnab yas, raj dej, thiab lwm yam.
Polyethylene Tsawg Tsawg (LLDPE):
Cov yam ntxwv: Piv rau LDPE, muaj tsawg ceg hauv nws cov kab molecular thiab crystallinity nruab nrab.
Qhov zoo: Muaj zog dua, tiv thaiv kev tawg thiab tawg zoo dua.
Kev siv: Siv dav hauv zaj duab xis, cov khoom ntim khoom, thiab lwm yam.
Polyethylene ntom siab (HDPE):
Cov yam ntxwv: Ntau ntom ntom (0.940 - 0.970 g/cm³), tsis muaj ceg hauv cov kab molecule, crystalline siab.
Qhov zoo: Muaj zog heev, tiv taus tshuaj lom, ruaj khov, thiab ruaj khov.
Kev siv: Zoo rau yeeb nkab, raj yas, thawv, khoom ua si, thiab lwm yam.
High-density polyethylene (HDPE) HDPE yog ib hom polyethylene tshwj xeeb. Nws paub zoo rau qhov ceev siab, tsis muaj ceg hauv nws cov molecule, thiab crystallinity siab. Thaum piv rau lwm yam polyethylenes, HDPE muaj zog dua thiab tiv taus tshuaj ntau dua.
Ceev: 0.940 - 0.970 g/cm³ Cov yam ntxwv: Muaj zog, tiv taus tshuaj lom, tsis yooj yim hloov
Kev siv feem ntau: Cov raj, raj mis yas, khoom ua si, thawv pov tseg, railings, thiab ntau ntxiv.
Txhawm rau sau ua ke, HDPE yog ib hom PE, tab sis PE kuj suav nrog lwm hom, xws li LDPE thiab LLDPE.

 

Hais txog Qingfa Pipe

Zhejiang Qingfa Pipe Technology Co., Ltd. siv Sinopec PE100 cov khoom siv raw rau cov raj dej thiab Borouge HE3490 (PE100) rau cov raj roj. Cov khoom no siv tau 50 xyoo, ua raws li cov qauv thoob ntiaj teb ntawm cov raj dej, thiab tsis muaj kev ntws dej tag nrho.