PE chingwe zinthu

PE ndi polyethylene pawiri, makamaka wogawidwa mu high kachulukidwe polyethylene (HDPE), medium kachulukidwe polyethylene (MDPE), low kachulukidwe polyethylene (LDPE) ndi linear low kachulukidwe polyethylene (LLDPE).

Lumikizanani nafe

Zambiri Zamalonda

Zolemba Zamalonda

mankhwala mbali

1.HDPE ndi mtundu wa crystallinity wapamwamba, utomoni wosakhala wa polar thermoplastic wopangidwa ndi ethylene copolymerization. Maonekedwe a HDPE yoyambirira ndi yoyera ngati yamkaka, ndipo imawonekera pang'onopang'ono m'gawo lochepa. Iwo ali kwambiri kukana mankhwala ambiri apakhomo ndi mafakitale, ndipo akhoza kukana dzimbiri ndi kusungunuka kwa okosijeni wamphamvu (anayikira nitric asidi), asidi ndi mchere mchere ndi organic solvents (carbon tetrachloride). Polima sichimamwa chinyezi ndipo imakhala ndi madzi abwino kukana nthunzi, yomwe ingagwiritsidwe ntchito pa chinyezi ndi kuteteza madzi.

2.MDPE imadziwika ndi kukana kupsinjika kwa chilengedwe komanso kusunga mphamvu kwa nthawi yayitali. Kachulukidwe wachibale wa MDPE ndi 0.926-0.953, crystallinity ndi 70% -80%, pafupifupi molekyulu yolemera ndi 200,000, mphamvu yamanjenje ndi 8-24 mpa, elongation pakupuma ndi 50% -60%, kutentha kosungunuka ndi 126-135 ℃, ndi kusungunula kuthamanga ndi 0.1-35 g / 10 mphindi. Thermal deformation kutentha (0.46 mpa) 49-74 ℃.

3. Polyethylene yotsika kwambiri ndiye mtundu wopepuka kwambiri mu utomoni wa polyethylene. Poyerekeza ndi polyethylene yochuluka kwambiri, crystallinity yake (55% -65%) ndi malo ochepetsetsa (90-100 ℃) ndi otsika. Ili ndi kufewa kwabwino, kufalikira, kuwonekera, kukana kuzizira komanso kutheka. Kukhazikika kwake kwamankhwala ndikwabwino, kumatha kupirira asidi, alkali ndi njira yamadzi yamchere yamchere; Kusungunula kwabwino kwamagetsi ndi mpweya wokwanira; Kutsika kwa madzi; Zosavuta kuwotcha. Katunduyo ndi wofewa, ndi extensibility wabwino, kutchinjiriza magetsi, bata mankhwala, processing ntchito ndi otsika kutentha kukana (kukana -70 ℃).

4. Poyerekeza ndi LDPE, LLDPE ili ndi ubwino wokhala ndi mphamvu zambiri, kulimba kwabwino, kukhazikika kwamphamvu, kukana kutentha, kukana kuzizira, etc.LLDPE imakhalanso ndi mphamvu yabwino ya chilengedwe, kukana misozi ndi zinthu zina, ndipo imatha kukana asidi, alkali, organic solvents ndi zina zotero.

Zindikirani: Tinthu tating'onoting'ono ta pulasitiki ta PE timagwiritsidwa ntchito kwambiri ndipo tifunika kusinthidwa malinga ndi zomwe makasitomala amafuna muzochitika zosiyanasiyana.

Product parameter

Dzina	Zithunzi za HDPE	LDPE	LLDPE
Kununkhira, kawopsedwe	Zopanda poizoni, zosakoma, zopanda fungo	Zopanda poizoni, zosakoma, zopanda fungo	Zopanda poizoni, zosakoma, zopanda fungo
Kuchulukana	0.940 ~ 0.976g/cm³	0.910 ~ 0.940g/cm³	0.915 ~ 0.935g/cm³
Crystallinity	85% -65%	45-65%	55-65%
Mapangidwe a maselo	Muli ma bond a carbon-carbon ndi carbon-hydrogen okha, omwe amafunikira mphamvu zambiri kuti athyoke	Polima ili ndi kulemera kwa maselo ang'onoang'ono ndipo imafuna mphamvu zochepa kuti iwonongeke	Mapangidwe a mzere, maunyolo a nthambi ochepa, maunyolo amfupi, amafunikira mphamvu zochepa kuti athyole
Kufewetsa mfundo	125-135 ℃	90-100 ℃	94-108 ℃
Katundu wamakina	Mphamvu yayikulu, kulimba kwabwino, kulimba kolimba	Osauka makina mphamvu	Mphamvu yayikulu, kulimba kwabwino, kulimba kolimba
Kulimba kwamakokedwe	Wapamwamba	Zochepa	Zapamwamba
Elongation panthawi yopuma	Zapamwamba	Zochepa	Wapamwamba
Mphamvu yamphamvu	Zapamwamba	Zochepa	Wapamwamba
Kuchita kosakwanira kwa chinyezi komanso kusagwira madzi	Ili ndi permeability yabwino kumadzi, nthunzi yamadzi ndi mpweya, mayamwidwe otsika amadzi komanso kukana kwabwino.	Chinyontho chosakwanira komanso kutchinjiriza mpweya	Ili ndi permeability yabwino kumadzi, nthunzi yamadzi ndi mpweya, mayamwidwe otsika amadzi komanso kukana kwabwino.
Acid, alkali, dzimbiri, organic solvent resistance	Kugonjetsedwa ndi dzimbiri zamphamvu za okosijeni; Kugonjetsedwa ndi asidi, alkali ndi mchere wosiyanasiyana; Insoluble mu zosungunulira zilizonse za organic, ndi zina.	Acid, alkali, salt solution kukana dzimbiri, koma kukana kosungunulira kosakwanira	Kugonjetsedwa ndi asidi, alkali ndi organic solvents
Kukana kutentha/kuzizira	Good kutentha ndi kuzizira kukana, pa firiji ndi ngakhale pa -40F otsika kutentha, kwambiri kukana, kutentha otsika embrittlement kutentha	Low kutentha kukana, otsika kutentha embrittlement kutentha	Kutentha kwabwino ndi kukana kuzizira Kutentha kochepa kwa embrittlement kutentha
Kukaniza kupsinjika kwa chilengedwe	Zabwino	Zabwino	Zabwino