Zipangizo zofunikira popangira nkhungu za pulasitiki zogwiritsa ntchito pakhomo

2021/01/20

Polypropylene (PP)

PP wamba amagwiritsidwa ntchito popangira jekete ya jekete, mipando, mipando, migolo, mabeseni, zoseweretsa, zolembera, zida zamaofesi, mipando, zingwe, mabokosi azotuluka ndi zina zotero. , akalowa mufiriji, chipolopolo chanyumba chaching'ono, ndi zina zambiri.

Polypropylene ndi utomoni wa thermoplastic wopangidwa ndi ma polymerization a propylene.Malinga ndi momwe methyl imagwirira ntchito, itha kugawidwa m'magulu atatu: â 'isotactic polypropylene, â‘¡ atactic polypropylene ndi â ’¢ interisotactic polypropylene.

Makhalidwe a PP

PP non-poizoni, zoipa, akhoza ankawaviika 100â „ƒ madzi otentha popanda mapindikidwe, palibe kuwonongeka, acid wamba, soda zosungunulira organic pafupifupi palibe mphamvu pa izo zimagwiritsa ntchito tableware. mabokosi a nkhomaliro amasungunuka mpaka 167â „ƒ, ndi bokosi lokhalo la pulasitiki lomwe lingayikidwe mu uvuni wa microwave, lingagwiritsidwenso ntchito pambuyo poyeretsa mosamala.

Kachulukidwe kakang'ono, kuuma kwa mphamvu, kuuma ndi kutentha kwa kutentha kuli bwino kuposa kutsika kwa polyethylene, komwe kumatha kugwiritsidwa ntchito pafupifupi madigiri 100.

Ali ndi magetsi abwino komanso kutsekemera kwapamwamba sikumakhudzidwa ndi chinyezi, koma kutentha kochepa kumakhala kosavala, kosalephera, kosavuta kukalamba.

Kukonzekera ukadaulo wa PP

PP imagwiritsidwa ntchito popangira jekeseni: Zida zopangira jekeseni za PP zitha kuwerengera pafupifupi theka, zofunikira tsiku ndi tsiku ndi PP wamba ngati zopangira, zida zamagalimoto zolimbikitsira kapena zolimbitsa PP ngati zopangira, zina zomwe zimagwiritsidwa ntchito ndi mphamvu yayikulu komanso kutentha pang'ono kwa PP- C zopangira.

Mfundo Zoti Muzigwiritsa Ntchito

Bokosi lina la mayikirowevu, bokosi lamtundu wopangira 5 PP, koma chivindikirocho chimapangidwa ku 1 PE, chifukwa PE silingathe kutentha kwambiri, siyingayikidwe mu uvuni wa microwave ndi thupi la bokosi.

Polyvinyl mankhwala enaake (PVC)

PVC ndi polima yaulere mopitilira muyeso polima yama polyethylene. Ndi imodzi mwamafuta akale kwambiri otukuka. Ndi mtundu waukulu kwambiri wa utomoni zaka za m'ma 1960 zisanafike, ndipo ndi wachiwiri kumapeto kwa ma 1960.

Malinga ndi kulemera kwake, PVC imatha kugawidwa m'mitundu yonse (pafupifupi polymerization ndi 500-1500) komanso kuchuluka kwa ma polima (kuchuluka kwa ma polymerization kumakhala kwakukulu kuposa 1700) mitundu iwiri. lembani.

Makhalidwe apamwamba a PVC:

1) magwiridwe antchito onse: PVC utomoni ndi ufa wonyezimira kapena wonyezimira, kuuma kwa zinthu zake kumatha kusinthidwa powonjezera kuchuluka kwa ma plasticizers, opangidwa ndi zinthu zofewa komanso zovuta.

2) Mawotchi katundu: PVC imakhala yolimba kwambiri komanso yopanga makina, ndipo imakulira ndikuwonjezeka kwama molekyulu, koma imachepa ndikuwonjezeka kwa kutentha. Nthawi zambiri, makina opangira makina amachepa ndikuwonjezeka kwapulasitiki. Kukanika kwa PVC kumakhala kofala.

Ntchito:

1) kugwiritsa ntchito zinthu zolimba za PVC

Chitoliro zakuthupi:ntchito chitoliro chapamwamba madzi, chitoliro m'munsi madzi, chitoliro mpweya, chitoliro kulowetsedwa ndi mbiri ulusi chitoliro: ntchito zitseko, Windows, matabwa kukongoletsa, mizere matabwa, mipando ndi stair handrails.

Mbale:Ikhoza kugawidwa mu bolodi lamatabwa, bolodi wandiweyani ndi bolodi lopangidwa ndi thobvu, logwiritsidwa ntchito kupangira, denga, shutter, pansi ndi zina zotero. , chingwe ndi zina zotero.

Gulu la botolo:chakudya, mankhwala ndi zodzikongoletsera zopangira.

Mankhwala jekeseni:zovekera chitoliro, mavavu, katundu ofesi nyumba ndi magetsi nyumba, etc.

2) kugwiritsa ntchito zinthu zofewa za PVC

Kanema:filimu yotentha ndi ulimi, filimu yonyamula, filimu ya raincoat, ndi zina zambiri.

Chingwe:ntchito kwa sing'anga ndi otsika voteji kutchinjiriza bokosi sheathed chingwe zakuthupi. Nsapato: zidendene ndi akumaliza.

Chikopa:zikopa zopangira, zikopa zapansi ndi wallpaper, ndi zina zambiri: machubu ofewa owonekera, zolemba ndi ma gaskets, ndi zina zambiri.