Dab tsi yog High Density Polyethylene

High density polyethylene (HDPE), hmoov dawb los yog granular khoom. Non-toxic, tasteless, crystallinity ntawm 80% mus rau 90%, softening point ntawm 125 mus rau 135 ° C, siv kub txog li 100 ° C; hardness, tensile zog thiab ductility yog zoo dua li tsawg ntom polyethylene; hnav tsis kam, hluav taws xob zoo rwb thaiv tsev, toughness thiab txias tsis kam; zoo tshuaj stability, insoluble nyob rau hauv tej organic hnyav ntawm chav tsev kub, corrosion kuj ntawm acid, alkali thiab ntau yam ntsev; nyias zaj duab xis permeability rau dej vapor thiab huab cua, dej nqus tsawg; kev laus tsis zoo, ib puag ncig kev nyuaj siab tawg kuj tsis zoo li tsawg ntom polyethylene, tshwj xeeb tshaj yog thermal oxidation yuav txo nws cov kev ua tau zoo, yog li cov antioxidants thiab ultraviolet absorbers yuav tsum tau ntxiv rau cov resin los txhim kho qhov tsis muaj peev xwm. High-density polyethylene zaj duab xis muaj qhov kub thiab txias distortion kub nyob rau hauv kev ntxhov siab, yog li xyuam xim rau nws thaum siv nws.

[English lub npe] High Density Polyethylene
[English abbreviation] HDPE
[Common name] Tsis tshua muaj siab ethylene
[Cov tshuaj monomer] Ethylene

[Cov yam ntxwv tseem ceeb] HDPE yog cov khoom siv opaque dawb zoo li cov khoom siv nrog lub ntiajteb txawj nqus sib dua li dej, nrog rau qhov tshwj xeeb ntawm 0.941 ~ 0.960. Nws yog mos thiab tawv, tab sis me ntsis nyuaj dua LDPE, thiab kuj me ntsis stretchable, tsis muaj tshuaj lom thiab saj tsis qab.

[Cov yam ntxwv ntawm combustion] Nws yog flammable thiab tuaj yeem hlawv txuas ntxiv tom qab tawm hauv hluav taws. Sab saum toj kawg ntawm nplaim taws yog daj thiab qis kawg yog xiav. Thaum hlawv, nws yuav yaj, yuav muaj cov kua dej ntws tawm, thiab tsis muaj pa taws dub tawm. Nyob rau tib lub sijhawm, nws emits qhov tsw ntawm paraffin hlawv.

[Qhov zoo tseem ceeb] Acid thiab alkali tsis kam, organic hnyav tsis kam, rwb thaiv tsev hluav taws xob zoo heev, thiab tseem tuaj yeem tswj tau qee qhov tawv ntawm qhov kub thiab txias. Deg hardness, tensile zog, rigidity thiab lwm yam mechanical zog yog siab tshaj LDPE, ze rau PP, tawv dua PP, tab sis cov nto tiav tsis zoo li PP.

[Qhov tsis zoo tseem ceeb] Cov khoom siv tsis zoo, qhov cua tsis zoo, yooj yim deformation, yooj yim aging, yooj yim los ua nkig, tsawg nkig dua PP, yooj yim rau kev ntxhov siab tawg, tsis tshua muaj deformation hardness, yooj yim rau khawb. Tsis yooj yim rau luam tawm, thaum luam ntawv, kev kho deg tawm yog yuav tsum tau, tsis muaj electroplating, thiab nto yog npub.

[Daim ntawv thov] Siv rau extrusion ntim zaj duab xis, hlua, woven hnab, nuv ntses nets, kav dej; kev txhaj tshuaj molding ntawm cov khoom siv niaj hnub qis thiab cov plhaub, cov khoom siv tsis-load-cov kabmob, cov thawv yas, cov thawv hloov pauv; extrusion tshuab molding ntim, hollow khoom, fwj.