Cov khoom sib txawv los ntawm LDPE thiab HDPE

Qhov sib txawv thiab kev sib piv ntawm HDPE thiab LDPE cov ntaub ntawv

Cov Qauv Ntau Lawm

- HDPE: Nws yog tsim los ntawm cov qauv qis, suav nrog cov txheej txheem ua kua (xws li kev daws teeb meem thiab cov txheej txheem slurry) thiab qib theem.
- LDPE: Nws yog tau los ntawm kev dawb radical polymerization ntawm polymerization-qib kev kub siab thiab kev paub siab, kuj tseem paub txog cov kev siab siab polyethylene.

Cov qauv thiab cov khoom

- Nrawm: qhov ntom ntawm HDPE yog 0. {}}}}. {5}}. 940 g / cm³.
- Hardness thiab rigidity: HDPE muaj lub hardness siab thiab rigidity vim nws cov charnel ntev thiab siab crystallinity; LDPE muag muag thiab yoog nrog luv luv molecular saw thiab tsawg crystallinity.
- Tshuaj lom neeg Kuj: HDPE muaj cov tshuaj tsis zoo thiab tuaj yeem tiv thaiv kev yaig ntawm ntau cov kuab tshuaj thiab tshuaj lom neeg; LDPE muaj cov tshuaj tsis zoo.
- Melting kub: lub melting kub ntawm HDPE yog nruab nrab ntawm {1}} degree, thiab ntawm LDPE feem ntau {2}} degree.
- Neeg kho tshuab zog: HDPE muaj cov kev kho tshuab zoo, xws li lub zog siab, khoov, ua kom muaj zog; LDPE muaj qhov tsis zoo tsis zoo siv zog.
- noo noo thiab waterproof kev ua tau zoo: HDPE muaj qhov dej qis rau dej, dej nqus dej, thiab huab cua, nrog cov dej noo thiab dej zoo thiab cov pa roj av; LDPE muaj tsis zoo noo thiab cov pa hluav taws xob.

Kev tshwm sim

- HDPE: hauv nws thawj lub xeev, nws yog milky dawb thiab zoo li translucent rau qee yam nyob rau hauv ib qho nyias nyias, nrog cov pob tshab.
- LDPE: nws yog nyob rau hauv daim ntawv ntawm milky dawb spherical hais cov lus, nrog npub nto thiab ib co theem ntawm pob tshab.

Kev ua tau zoo

- HDPE: nws yuav tsum muaj qhov kub siab ua haujlwm, feem ntau yog nyob ib ncig ntawm 180 degree, thiab haum rau ntau txoj kev xws li extrusion, tshuab moulding, txhaj tshuaj molding, thiab muab molding.
- LDPE: Nws muaj qhov ntsuas kub nyob qib siab, txog 160 degree, thiab muaj kev tsim kho kom zoo, siv cov tshuab moulding, sib hloov moulding, thiab lwm yam txheej txheem.