mankhwala

polypropylene kwa nsalu zopanda nsalu,
PP Resin, PP utomoni kwa BOPP makampani, PP utomoni kwa jekeseni akamaumba makampani,

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

Mu thumba la 25kg, 16MT mu 20fcl imodzi yopanda phale kapena 26-28MT mu 40HQ imodzi yopanda phale kapena thumba la jumbo la 700kg, 26-28MT mu 40HQ imodzi yopanda phale.

Sabata ino polypropylene kunsi kwa mtsinje kugula cholinga chatsika, mafakitale ali ndi tchuthi, zomangamanga zonse ndizotsika kwambiri.Zonse, zoweta polypropylene kumunsi makampani (kuphatikiza pulasitiki kuluka, jekeseni akamaumba, BOPP, PP sanali nsalu nsalu) wonse ntchito mlingo anatsika ndi 14.7% mpaka 36.2%.Mlingo wa kuluka pulasitiki unatsika ndi 9.5% mpaka 34%;jekeseni akamaumba mlingo kutsika 17% mpaka 32%;BOPP imayamba idagwa 2.8% mpaka 60.1%;Zoyambira zopanda nsalu zidatsika 29.8% mpaka 18.5%.

Pakuwona mbali yofunikira, kuchuluka kwa ntchito zamabizinesi oluka pulasitiki sabata ino ndi kotsika kwambiri kuposa sabata yatha, kutsika ndi 13% pachaka.Kumapeto kwa chaka, mabizinesi ambiri adalowa mutchuthi, dongosolo la mabizinesi lidatsika kwambiri, mabizinesi ena amalamula mopanda pake, chidwi cha mabizinesi kuti abwezerenso zinthu zopangira chinachepa, makamaka kugaya zinthu zomalizidwa, msika wonse wamalonda. kunali kuzizira;Pankhani yamakampani a BOPP, masiku oyitanitsa mabizinesi oyeserera sabata ino ndi 7.89% poyerekeza ndi nthawi yapitayi.Monga momwe kufunikira kwa BOPP sikuli bwino ngati zaka zam'mbuyomu, kutsika ndi amalonda ali patchuthi pasadakhale, ndipo msika wonse wamalonda ukuyamba kupepuka pamene Chikondwerero cha Spring chikuyandikira.Mabizinesi ambiri a nembanemba adayitanitsa pasadakhale, ndipo mabizinesi ambiri a nembanemba akugwira ntchito bwino pakadali pano, osatsata madongosolo atsopano.jekeseni akamaumba makampani akuyamba kuchepa kwambiri, mafakitale ndi maholide, makampani akuyamba kuchepa mwachionekere;Non-wolukidwa nsalu makampani mkati mwa mlungu kuti ayambe kuwongolera kwambiri, masiku dongosolo sabata ino poyerekeza ndi sabata yatha -3.5 masiku, kutsika malamulo anasonyeza kutsika.Mabizinesi osapanga nsalu a PP alowa mu tchuthi, mabizinesi atsopanowa ndi ochepa kwambiri.Ambiri, anakhudzidwa ndi tchuthi Chikondwerero cha Spring, ntchito yonse yomanga kunsi kwa mtsinje inagwa kwambiri, tchuthi lisanafike mtsogolo, ntchito ya masheya idakula bwino, kuthandizira msika wa polypropylene kukhala wamphamvu.

M'kupita kwa nthawi, kupezeka kwa polypropylene ndi kufuna masewera ofunikira akadali odziwikiratu.Pambuyo pa tchuthi, pali chiyembekezo cha kusungirako katundu pamsika.Kuphatikiza apo, mu dongosolo la mphamvu zatsopano zopangira, Guangdong Petrochemical akuyembekezeka kutulutsa zida panthawi yatchuthi, ndipo kukakamiza kwa msika kumawonjezeka kwambiri.Ponena za kufunikira, ndondomeko yoyambiranso ntchito kumtunda pambuyo pa tchuthi ndizovuta kwambiri pamsika.Alangizidwa kuti ogwira ntchito aziyang'anitsitsa ndondomeko ya kuyambiranso ntchito.