Iwe wakakodzera nzira iyi yekuziva mapurasitiki anowanzo shandiswa!

Pane zvikamu zvitanhatu zvikuru zvemapurasitiki anowanzo shandiswa, polyester (PET polyethylene terephthalate), high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS).

Asi, unoziva nzira yekuziva mapurasitiki aya? Nzira yekuvandudza sei "meso ako anopisa"? Ini ndichakudzidzisa dzimwe nzira dzinoshanda, hazvina kuoma kuziva mapurasitiki anowanzoshandiswa mumasekondi!

Pane angangoita nzira dzinotevera dzekuziva mapurasitiki: chitarisiko chekuonekwa, chitupa chekupisa, density identification, melt identification, solvent identification, nezvimwe.

Nzira mbiri dzekutanga dziri nyore uye dziri nyore kushandisa, uye dzinokwanisawo kuziva marudzi aya emapurasitiki zvakanaka. Iyo density yekuzivisa nzira inogona kuisa mapurasitiki uye inowanzo shandiswa mukugadzira maitiro. Naizvozvo, pano isu tinonyanya kusuma vatatu vavo.

01 Chitarisiko chiziviso

Plastiki yega yega ine hunhu hwayo, ine mavara akasiyana, gloss, pachena,kuoma, etc. Chitarisiko chiziviso ndechekusiyanisa marudzi akasiyana zvichienderana nechitarisiko maitirozvepurasitiki.

Tafura inotevera inoratidza kutaridzika kwemunhu emapurasitiki akaenzana. Vashandi vane ruzivo rwekugadzirisa vanogona kunyatsosiyanisa marudzi emapurasitiki zvichienderana neaya maitiro ekuonekwa.

Kuonekwa kwekuzivikanwa kwemapurasitiki akawanda anowanzo shandiswa

1. Polyethylene PE

Zvinhu: Kana isina ruvara, ichena semukaka, inopenya, uye namo; chigadzirwa chinonzwa chakatsetseka kana chabatwa neruoko, chakapfava uye chakaoma, uye chakareba zvishoma. Kazhinji, low-density polyethylene yakapfava uye ine pachena zvirinani, nepo high-density polyethylene yakaoma.

Zvigadzirwa zvakajairika: firimu repurasitiki, mabhegi, pombi dzemvura, madhiramu emafuta, mabhodhoro echinwiwa (mabhodhoro emukaka ecalcium), zvinodiwa zvezuva nezuva, nezvimwe.

2. Polypropylene PP

Properties: Ichena, inopenya uye yakisi kana isina ruvara; yakareruka kupfuura polyethylene. Iko kujeka zvakare kuri nani pane polyethylene uye yakaoma kupfuura polyethylene. Yakanakisa kupisa kupesana, kudzidzira kwakanaka, kupisa kupesana kusvika 167 ° c.

Zvigadzirwa zvakajairika: mabhokisi, mbiya, mafirimu, fenicha, mabhegi akarukwa, mabhodhoro kepisi, mabhampa emota, nezvimwe.

3. Polystyrene PS

Properties: Transparent kana isina ruvara. Chigadzirwa chacho chichaita ruzha rwesimbi painodonhedzwa kana kurohwa. Iine gloss yakanaka uye yakajeka, yakafanana negirazi. Iyo ine brittle uye iri nyore kutyora. Iwe unogona kukwenya pamusoro pechigadzirwa neminwe yako. Modified polystyrene is opaque.

Zvigadzirwa zvakajairika: Stationery, makapu, midziyo yekudya, misoro yemidziyo, yemagetsi zvinhu, nezvimwe.

4. Polyvinyl chloride PVC

Zvivakwa: Ruvara rwepakutanga rwakati yero, kupenya uye kupenya. Kujeka kuri nani pane polyethylene uye polypropylene, asi yakaipisisa kupfuura polystyrene. Zvichienderana nehuwandu hwezvinowedzera zvinoshandiswa, zvakakamurwa kuva PVC yakapfava uye yakaoma. Zvigadzirwa zvakapfava zvinoshanduka uye zvakaoma, uye kunzwa kunamatira. Zvigadzirwa zvakaoma zvine kuomarara kwakakwira kupfuura kuderera-desity polyethylene asi kuderera pane polypropylene, uye kuchema kuchaitika pamakotama. Inogona chete kumira kupisa kusvika 81°C.

Zvigadzirwa zvakajairika: masosi eshangu, matoyi, waya sheaths, magonhi nemahwindo, zvekunyora, midziyo yekurongedza, nezvimwe.

5. Polyethylene terephthalate PET

Zvivakwa: Kujeka kwakanyanya, kusimba kuri nani uye kusimba kupfuura polystyrene uye polyvinyl chloride, isiri nyore kuputsika, yakatsetseka uye inopenya pamusoro. Kuramba kuAcid naAlkali, kusapokana nekudziya kwakanyanya, zviri nyore kushomeka (kunogona kungoita kupisa kupisa pazasi 69 ° C).

Zvigadzirwa zvakajairika: kazhinji zvigadzirwa zvemabhodhoro: Mabhodhoro eCoke, mabhodhoro emvura yemamineral, nezvimwe.

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pamusoro pe

Iwo ma6 matatu anowanzo shandiswa mapoka emapurasitiki anogona zvakare kuzivikanwa narecycling marks. Mucherechedzo wekudzokorodza kazhinji uri pazasi pemudziyo. Mucherechedzo weChinese inhamba ine manhamba maviri ine "0" kumberi. Mucherechedzo wekunze idijiti imwe chete isina "0". Nhamba dzinotevera dzinomiririra mhando imwechete yepurasitiki. Zvigadzirwa kubva kune vanogara vagadziri vane ichi chiratidzo. Kuburikidza nekudzokorora chiratidzo, mhando yepurasitiki inogona kuzivikanwa chaizvo.

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02 Kuzivikanwa kwekupisa

Kune akajairwa emhando dzepurasitiki, nzira yekupisa inogona kushandiswa kuaziva zvakanyanya. Kazhinji, iwe unofanirwa kuve nehunyanzvi mukusarudza uye kuve natenzi kuti akutungamirire kwenguva yakati rebei, kana iwe unogona kuwana akasiyana mapurasitiki uye kuitisa kuyedza kupisa uri wega, uye iwe unogona kuzvigona nekuzvienzanisa nekuzvibata nemusoro kakawanda. Hapana nzira yekudimbudzira. Kutsvaga. Ruvara uye kunhuwa kwemurazvo panguva yekupisa uye nyika mushure mekusiya moto inogona kushandiswa sehwaro hwekuzivikanwa.

Kana rudzi rwepurasitiki rusingagoni kusimbiswa kubva kune chiitiko chekupisa, sampuli dzemhando dzepurasitiki dzinozivikanwa dzinogona kusarudzwa kuti dzienzaniswe nekuzivikanwa kwemigumisiro iri nani.

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03Density identification

Mapurasitiki ane densiti dzakasiyana, uye kunyura kwavo uye kuyerera zviitiko mumvura nemamwe mhinduro zvakare kwakasiyana. Mhinduro dzakasiyana dzinogona kushandiswa kuitasiyanisa marudzi akasiyana. Kuwanda kwemapurasitiki anowanzo shandiswa uye kuwanda kwezvinwiwa zvinowanzo shandiswa zvinoratidzwa mutafura iri pazasi. Zvinwiwa zvakasiyana zvinogona kusarudzwa zvichienderana nemhando dzekuparadzanisa.

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PP uye PE inogona kugezwa kubva kuPET nemvura, uye PP, PE, PS, PA, uye ABS inogona kugezwa kunze nesaturated brine.

PP, PE, PS, PA, ABS, uye PC inogona kuyangarara kunze ine saturated calcium chloride aqueous solution. PVC chete ine density yakafanana nePET uye haigone kupatsanurwa kubva kuPET nenzira yekuyangarara.


Nguva yekutumira: Nov-30-2023

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