mankhwala

PP utomoni kwa PP lathu lolunjika anatambasula polypropylen,
Polypropylene resin kupanga filimu ya OPP,

Polypropylene ndi utomoni wopangidwa ndi polymerization wa propylene (CH3—CH = CH2) ndi H2 monga molecular weight modifier.Pali ma stereomer atatu a PP - isotactic, atactic ndi syndiotactic.PP ilibe magulu a polar ndipo ili ndi zida zabwino kwambiri zotchinjiriza magetsi.Mayamwidwe ake amadzi ndi ochepera 0.01%.PP ndi polima theka-crystalline ndi kukhazikika kwa mankhwala.Ndiwokhazikika kumankhwala ambiri kupatula ma oxidizer amphamvu.Ma inorganic acid, alkali ndi mchere sakhala ndi vuto lililonse pa PP.PP imakhala ndi kutentha kwabwino komanso kutsika kochepa.Malo ake osungunuka ndi pafupifupi 165 ℃.Ili ndi mphamvu zolimba kwambiri komanso kulimba kwapamtunda komanso kukana kupsinjika kwa chilengedwe.Imatha kupirira 120 ℃ mosalekeza.

Sinopec ndiye wopanga wamkulu wa PP ku China, mphamvu yake ya PP ndi 45% ya mphamvu zonse mdzikolo.Kampaniyi pakadali pano ili ndi 29 PP zomera ndi ndondomeko mosalekeza (kuphatikiza amene akumangidwa).Matekinoloje omwe amagwiritsidwa ntchito ndi mayunitsiwa akuphatikiza njira ya Mitsui Chemical's HYPOL, njira ya gasi ya Amoco, njira ya Basell's Spheripol ndi Spherizone ndi njira yamafuta a Novolen.Ndi luso lake lamphamvu lofufuza zasayansi, Sinopec yapanga paokha njira yachiwiri yopangira PP.

Zithunzi za PP

1.Kuchulukana kwachibale ndi kochepa, kokha 0.89-0.91, yomwe ndi imodzi mwa mitundu yopepuka kwambiri m'mapulasitiki.

2.good makina katundu, kuwonjezera kukana zimakhudza, katundu wina makina ndi bwino kuposa polyethylene, akamaumba processing ntchito bwino.

3.Ili ndi kukana kutentha kwakukulu ndipo kutentha kosagwiritsidwa ntchito kosalekeza kumatha kufika 110-120 °C.

4.zabwino mankhwala katundu, pafupifupi palibe mayamwidwe madzi, ndipo sachita ndi mankhwala ambiri.

5.kapangidwe kake ndi koyera, kopanda poizoni.

6.electrical insulation ndi yabwino.

Nthawi zambiri amagwiritsidwa ntchito pa kalasi ya PP

Kugwiritsa ntchito

Phukusi

Ndi mitundu yopitilira 100 yosiyana siyana Mafilimu a Polypropylene ndi amodzi mwamafilimu omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi.Ntchito yodziwika bwino ya polypropylene ndi monga oriented polypropylene (OPP).Kanemayu ali ndi zinthu zabwino zotsimikizira chinyezi zomwe zimapangitsa izi kukhala zabwino kugwiritsa ntchito inki wamba zomwe zimapanga zotsatira zosindikiza zomveka bwino.Masiku ano ndi filimu yosinthira yosinthika yachiwiri mpaka polyethylene yotsika kwambiri.

(OPP) Mafilimu Opangidwa ndi Polypropylene
Polima ya thermoplastic yomwe imagwiritsidwa ntchito pazinthu zosiyanasiyana kuyambira pakuyika, mpaka pamakalapeti.Kugwiritsa ntchito kwambiri filimu ya OPP ndikuyika chakudya chifukwa cha mphamvu zabwino, kumveka bwino, zotchinga zokwanira komanso mtengo wotsika poyerekeza ndi cellophane.Zili pafupifupi mbali iliyonse ya moyo wanu watsiku ndi tsiku.Polypropylene imatsutsana kwambiri ndi kutopa.Chifukwa chake hinge yamtundu wa pulasitiki imatha kutsegulidwa ndikutsekedwa nthawi 1000 popanda kutopa.Zolemba zambiri za flip-top zili ndi izi.Njira yosungunuka ya polypropylene imatheka kudzera mu extrusion ndi kuumba.Njira yodziwika bwino yopangira mawonekedwe ndi jekeseni.Njira zina ndi kuumba ndi kuumba jekeseni.Pokhala ndi kuthekera kosintha magiredi ena ndi zinthu zina zama cell panthawi yopanga kumapangitsa kuti pakhale ntchito zambiri zomaliza.Chitsanzo cha izi chingakhale kugwiritsa ntchito chowonjezera cha antistatic kuti chithandizire pamwamba pa polypropylene kukana dothi ndi fumbi.