Kufotokozera Mwatsatanetsatane za Makhalidwe, Njira Zogwiritsira Ntchito ndi Kugwiritsa Ntchito Zipangizo za PE ndi PP

1. Chidule cha Zinthu Zofunika

PE, PP, PVC, PS, PC, PF, EP, ABS, PA, PMMA, ndi zina zotero zimatchedwa zinthu zapulasitiki, zomwe zimadziwikanso kuti zinthu za polymer. Ndi mtundu wa zinthu zopangidwa ndi pulasitiki zopangidwa kuchokera ku zinthu zokhala ndi mamolekyulu ambiri pogwiritsa ntchito njira zosiyanasiyana zopangira. Zipangizo zapulasitiki zili ndi ubwino wokhala zopepuka, zolimba kwambiri, zokana dzimbiri, komanso zoteteza bwino kwambiri. Zimagwiritsidwa ntchito kwambiri pokonza, kumanga, magalimoto, zamagetsi, ndi zina zambiri.

Polyethylene (PE): Ndi thermoplastic yopepuka, yosinthasintha komanso yolimba bwino. Kutengera kuchuluka kwa zinthu, imatha kugawidwa m'magulu awiri: high-density polyethylene (HDPE) ndi low-density polyethylene (LDPE).

Polypropylene (PP): Imalimbana ndi kutentha kwambiri, imalimbana ndi mankhwala komanso imakhala yolimba, ndipo imagwiritsidwa ntchito kwambiri m'zida zamagalimoto ndi zida zapakhomo.

2. Polyethylene (PE)

Kapangidwe ka Thupi ndi Mankhwala: Polyethylene (PE) ndi polima yolunjika yokhala ndi mamolekyulu ambiri yokhala ndi kapangidwe kosavuta kwambiri ka mamolekyulu, yopangidwa ndi mayunitsi obwerezabwereza a "-CH2-CH2-". Kapangidwe kameneka kamapereka PE ndi mitundu yosiyanasiyana ya kapangidwe ka thupi ndi mankhwala.

Wopepuka: PE ili ndi kachulukidwe kochepa, pafupifupi pakati pa 0.91 ndi 0.96 g/cm³, zomwe zimapangitsa kuti ikhale yoyimira zinthu zopepuka.

Kukana Mankhwala: PE imasonyeza kukhazikika kwa mankhwala ambiri ku ma acid, ma bases, ndi mchere.

Kuteteza Magetsi: Popeza si chinthu chopanda polar, PE ili ndi mphamvu yabwino kwambiri yoteteza magetsi.

Kukana Kutentha Kochepa: PE imatha kusunga mawonekedwe ake enieni kutentha kotsika mpaka -70°C. PE imatha kusinthidwa ikatenthedwa, zomwe zimathandiza kubwezeretsanso ndi kukonzanso.

Njira Zokonzera: Njira zokonzera polyethylene ndi zosiyanasiyana ndipo makamaka zimaphatikizapo izi.

Kutulutsa: kumagwiritsidwa ntchito popanga mapaipi, kutchinjiriza mawaya ndi zingwe, ndi zina zotero.

Kupangira jakisoni: koyenera kupanga zotengera zazing'ono, zoseweretsa, ndi zina zotero.

Kuumba Mowa: kumagwiritsidwa ntchito popanga mabotolo ndi zotengera zopanda kanthu.

Kuumba Zinthu Mopondereza: Koyenera kupanga zinthu zazikulu zapulasitiki, zomwe zimagwiritsidwa ntchito popanga zinthu zomangira ndi mathireyi okhala ndi makoma owonda.

Minda Yofunsira: Polyethylene ili ndi madera osiyanasiyana ogwiritsira ntchito. Nazi zitsanzo zazikulu zogwiritsira ntchito.

Zipangizo Zophikira: Makanema a PE amagwiritsidwa ntchito kwambiri popaka chakudya ndi zinthu zina chifukwa cha kulemera kwawo kochepa komanso chitetezo chawo chabwino.

Mapaipi apulasitiki: Mapaipi a HDPE nthawi zambiri amagwiritsidwa ntchito ponyamula madzi ndi gasi chifukwa cha kukana kwawo mankhwala ndi kukana kukalamba.

Mawaya ndi Zingwe: PE imagwiritsidwa ntchito kwambiri ngati chinthu chotetezera kutentha popanga mawaya ndi zingwe.

Ulimi: PE imagwiritsidwa ntchito popanga mafilimu a zaulimi, monga ukadaulo wophimba nthaka.

Zachipatala: Chifukwa cha kugwirizana kwake ndi zamoyo komanso kukana mankhwala, PE imagwiritsidwanso ntchito popanga zipangizo zina zachipatala.

Makampani Ogulitsa Magalimoto: PE imagwiritsidwa ntchito popanga zida zamagalimoto, monga matanki amafuta ndi ma bumpers, chifukwa cha kulemera kwake kopepuka komanso kukana kugunda.

3. Katundu wa Polypropylene (PP) Wathupi ndi Mankhwala

Polypropylene (PP) ndi polima yopangidwa ndi thermoplastic yopangidwa kuchokera ku polymerization ya propylene monomers. PP ili ndi zinthu zotsatirazi zodziwika bwino zakuthupi ndi zamakemikolo.

Kukana Kutentha: Kutentha kwa PP kuli pakati pa 160 ndi 170°C, zomwe zimapangitsa kuti ikhale yolimba kutentha komanso yoyenera zinthu zomwe zimafunika kupirira kutentha kwambiri.

Kukana Mankhwala: PP ndi yolimba motsutsana ndi madzi, mchere wosapangidwa, ma asidi, ndi maziko koma imakhudzidwa ndi zinthu zina zachilengedwe.

Kulimba: PP imakhala yolimba kwambiri, zomwe zimapangitsa kuti ikhalebe mawonekedwe ake pansi pa katundu wolemera.

Kukana Kutopa: PP ili ndi mphamvu yolimbana ndi kutopa ndipo ndi yoyenera kugwiritsidwa ntchito zomwe zimafuna kupindika kapena kupotoza mobwerezabwereza. PP imatha kutenthedwa ndi kuzizira mobwerezabwereza popanda kutaya mphamvu zake zakuthupi, zomwe zimapangitsa kuti ikhale yosavuta kuigwiritsanso ntchito.

Njira Zopangira: Polypropylene ikhoza kukonzedwa kukhala zinthu zosiyanasiyana pogwiritsa ntchito njira zosiyanasiyana.

Kutulutsa: Kumagwiritsidwa ntchito popanga mapaipi a PP, mapepala, ndodo, ndi zina zotero.

Kupangira jakisoni: Koyenera kupanga zinthu zapulasitiki zazing'ono mpaka zapakati monga zotengera, zivindikiro, ndi zida zamagalimoto.

Kuumba Mphepo: Kumagwiritsidwa ntchito popanga zinthu zazikulu zapulasitiki monga mabotolo ndi zidebe. Kumagwiritsidwa ntchito popanga zotengera kapena mathireyi apulasitiki okhala ndi makoma owonda.

Kupanga Ulusi: PP ingapangidwenso kukhala ulusi kudzera mu njira zotambasula ndi kuluka zingwe, makapeti, ndi zina zotero.

Madera Ogwiritsira Ntchito: Polypropylene ili ndi ntchito zosiyanasiyana, kuphatikizapo zitsanzo zotsatirazi.

Makampani Ogulitsa Magalimoto: PP imagwiritsidwa ntchito kwambiri m'makampani opanga magalimoto pazinthu zamkati ndi zakunja chifukwa cha kulemera kwake kochepa komanso kukana kutentha, monga zida zamagetsi ndi mabampala.

Makampani Opanga Nsalu: Ulusi wa PP umagwiritsidwa ntchito popanga zingwe, makapeti, ndi zovala.

Zipangizo Zopakira: Chifukwa cha kulemera kwake kochepa komanso kukana mankhwala, PP imagwiritsidwa ntchito kwambiri popakira zinthu za chakudya komanso zinthu zosakhala chakudya.

Zipangizo Zapakhomo: PP imagwiritsidwa ntchito popanga zotengera zosagwiritsa ntchito microwave, ma drawer a firiji, ndi zida zina zapakhomo.

Makampani Omanga: Mapaipi ndi mapepala a PP amagwiritsidwa ntchito popanga mapaipi ndi zinthu zokongoletsera.

Munda Wachipatala: Chifukwa chakuti imagwirizana ndi zamoyo, PP imagwiritsidwanso ntchito popanga zinthu zina zachipatala zomwe zingatayike nthawi imodzi, monga ma syringe ndi machubu oyesera.