Tsanangudzo yeHDPE
HDPE ndiyo acronym inonyanya kushandiswa kureva high density polyethylene. Isu tinotaurawo nezve PE, LDPE kana PE-HD mahwendefa. Polyethylene chinhu chinonzi thermoplastic icho chikamu chemhuri yemapurasitiki.
Kune marudzi akasiyana e polyethylenes. Iyi misiyano inotsanangurwa nekugadzira nzira iyo ichasiyana. Tiri kutaura nezve polyethylene:
• low density (LDPE)
• high density (HDPE)
• pakati density (PEMD).
Mukuwedzera, kuchine mamwe marudzi e polyethylene: chlorinated (PE-C), ine huremu hwepamusoro-soro.
Ese aya mapfupiso uye marudzi ezvigadzirwa akamisikidzwa pasi peiyo egis yeyakajairwa NF EN ISO 1043-1.
HDPE ndiyo chaiyo mhedzisiro yeyakanyanya density process: High Density Polyethylene. Nayo, tinogona kugadzira matoyi evana, mabhegi epurasitiki, pamwe chete nemapombi anoshandiswa kutakura mvura!
HDPE plastiki inogadzirwa kubva petroleum synthesis. Nekugadzirwa kwayo, HDPE inosanganisira matanho akasiyana:
• distillation
• kuputika kwemhepo
• polymerization
• granulation
Mushure mekuchinja uku, chigadzirwa chine mukaka chena, chinopenya. Zvino zviri nyore kwazvo kuumba kana ruvara.
HDPE kushandisa kesi muindasitiri
Nekuda kwehunhu hwayo uye zvakanakira, HDPE inoshandiswa munzvimbo dzakawanda dzeindasitiri.
Inowanikwa kwose kwose kwakatipoteredza muupenyu hwedu hwezuva nezuva. Heino mimwe mienzaniso:
Kugadzirwa kwemabhodhoro epurasitiki uye epurasitiki kurongedza
HDPE inozivikanwa kwazvo muindasitiri yechikafu, kunyanya kugadzira mabhodhoro epurasitiki.
Igaba rakanaka rekudya kana zvinwiwa kana kugadzira mabhodhoro mavharo. Hapana njodzi yekuputsika sezvazvinogona kuva negirazi.
Pamusoro pezvo, HDPE purasitiki yekurongedza ine mukana wakakura wekugonesa kushandiswazve.
Kupfuura indasitiri yechikafu, HDPE inowanikwa mune dzimwe nzvimbo dzeindasitiri zvakazara:
• kugadzira matoyi,
• zvidziviriro zvepurasitiki zvemabhuku ekunyorera,
• mabhokisi ekuchengetedza
• mukugadzirwa kwezvikepe-kayaks
• kusikwa kwebhikoni buoys
• nevamwe vakawanda !
HDPE muindasitiri yemakemikari nemishonga
Maindasitiri emakemikari nemishonga anoshandisa HDPE nekuti ine makemikari anopikisa. Inonzi inert yemakemikari.
Saka, ichashanda semudziyo:
• ye shampoos
• zvigadzirwa zvemumba zvinofanira kushandiswa nehanya
•kuwacha
• mafuta ejini
Inoshandiswawo kugadzira mabhodhoro emishonga.
Mukuwedzera, tinoona kuti mabhodhoro akagadzirwa mu polypropylene anotonyanya kusimba mukuchengetedza kwavo zvigadzirwa kana zvine ruvara kana pigmented.
HDPE yeindasitiri yekuvaka uye mafambiro emvura
Chekupedzisira, imwe yedzimwe nzvimbo dzinoshandisa zvakanyanya HDPE imunda wepombi uye chikamu chekuvaka zvakanyanya.
Vehutsanana kana nyanzvi dzekuvaka vanoishandisa kugadzira nekuisa pombi dzinozoshandiswa kufambisa mvura (mvura, gasi).
Kubva kuma1950s, pombi yeHDPE yakatsiva pombi yemutobvu. Mapombi emutobvu akarambidzwa zvishoma nezvishoma nekuda kwehuturu hwayo kumvura yekunwa.
High-density polyethylene (HDPE) pombi, kune rumwe rutivi, ipombi inoita kuti zvikwanise kuve nechokwadi chekugoverwa kwemvura yekunwa: ndiyo imwe yemapombi anoshandiswa zvakanyanya pairi basa rekupa mvura yekunwa.
HDPE inopa mukana wekudzivisa kushanduka kwekushisa kwemvura mupombi, kusiyana neLDPE (yakaderera tsanangudzo polyethylene). Kugovera mvura inopisa pane inopfuura 60 °, isu tichasarudza kutendeukira kuPERT mapaipi (polyethylene inopesana nekushisa).
HDPE inoitawo kuti zvikwanise kutakura gasi nechubhu, kugadzira madhaidhi kana zvinhu zvekufemesa muchivako.
Zvakanakira uye kuipa kwekushandisa HDPE pane maindasitiri masaiti
Nei HDPE ichishandiswa zviri nyore panzvimbo dzepombi dzemaindasitiri? Uye pane zvinopesana, ndezvipi zvingava pfungwa dzayo dzisina kunaka?
Zvakanakira HDPE sechinhu
HDPE chinhu chine akati wandei anobatsira zvinhu zvinopembedza kushandiswa kwayo muindasitiri kana mafambiro emvura mupombi.
HDPE chinhu chisingadhure chemhando yemuenzaniso. Iyo yakanyanya kusimba (haiputsike) ichiramba ichipenya.
Inogona kumira zvakasiyana-siyana tembiricha zvichienderana nekugadzira kwayo maitiro (yakaderera uye yakakwirira tembiricha: kubva -30 °C kusvika +100 °C) uye pakupedzisira inoshingirira kune akawanda eanonyungudutsa acids ayo angave aine asina kukuvara. sag kana kushandura.
Ngatitsanangure mamwe mabhenefiti ayo:
HDPE: iri nyore modular zvinhu
Nekuda kwemaitiro ekugadzira ayo anogadzira HDPE, HDPE inopesana nekupisa kwakanyanya.
Munguva yekugadzira, kana yasvika pakunyungudika, zvinhu zvinogona kutora chimiro chakakosha uye chinoenderana nezvinodiwa nevagadziri: kana kugadzira mabhodhoro ezvigadzirwa zvemumba kana kugovera mapaipi emvura anozomira kutonhora kwakanyanya.
Ichi ndicho chikonzero mapaipi ePE achipokana nekuora uye akagadzikana pakurwisa akawanda emakemikari maitiro.
HDPE inodzivirira zvakanyanya uye haina mvura
Imwe mukana uye kwete diki, HDPE inopikisa zvakanyanya!
• HDPE inoramba kuonda: nokudaro mapaipi anotakura zvinwiwa zvine hasha hazvizoitirwe “kuora”. Pachave pasina shanduko mukukora kwepombi kana kunaka kwezvigadziriso nekufamba kwenguva.
• Kurwisana nevhu rine utsinye: nenzira imwechete, kana ivhu riine asidi uye pombi yakavigwa, chimiro chayo hachikwanisi kuchinjwa.
• HDPE inopesanawo zvakanyanya nekudengenyeka kwekunze kunogona kuitika: simba rinoparadzirwa panguva yekudengenyeka rinobva rakonzera deformation yechikamu pane kuparara kwayo. Saizvozvo, njodzi yesando yemvura yakaderedzwa zvakanyanya neHDPE
Mapombi eHDPE haapindike: kungave kumvura kana kumhepo zvakare. Ndiyo NF EN 1610 yakajairwa iyo inobvumira semuenzaniso kuyedza kusimba kwechubhu.
Pakupedzisira, kana yakasviba, HDPE inogona kumira UV
HDPE yakareruka asi yakasimba
Kune maindasitiri epombi nzvimbo, kureruka kweHDPE mukana usingarambike: mapaipi eHDPE ari nyore kutakura, kufamba kana kuchengeta.
Semuenzaniso, Polypropylene, mita imwe yepombi ine dhayamita isingasviki 300 inorema:
• 5 kg muHDPE
• 66 kg musimbi yakakandwa
• 150 kg kongiri
Muchokwadi, pakubata kazhinji, kuiswa kweHDPE mapaipi kunorerutswa uye kunoda midziyo yakareruka.
Iyo HDPE pombi inopikisa zvakare, nekuti inogara nekufamba kwenguva sezvo hupenyu hwayo hunogona kunge hwakareba (kunyanya HDPE 100).
Uhu hupenyu hwepombi hunoenderana nezvinhu zvakasiyana: ukuru, kudzvanywa kwemukati kana tembiricha yemvura mukati. Tiri kutaura pamusoro pemakore makumi mashanu kusvika ku100 ehupenyu hurefu.
Izvo zvisingabatsiri zvekushandisa yakakwirira density polyethylene panzvimbo yekuvaka
Pane zvinopesana, izvo zvisingabatsiri zvekushandisa HDPE pombi zviripo zvakare.
Tinogona kutaura semuenzaniso:
• Mamiriro ekuisa panguva yekuvaka anofanirwa kuve akangwarira: kubata zvisina kunaka kunogona kuuraya
• hazvibviri kushandisa gluing kana screwing kubatanidza mapaipi maviri eHDPE
• kune ngozi ye ovalization yepombi paunobatanidza mapaipi maviri
• HDPE inobata inzwi kupfuura zvimwe zvinhu (zvakadai sesimbi yakakandwa), iyo inonyanya kuoma kuona
• uye nokudaro tarisa kubuda. Maitiro anodhura kwazvo anobva ashandiswa kutarisa network (hydrophone nzira)
• kuwedzera kwekushisa kwakakosha neHDPE: pombi inogona kukanganisa zvichienderana nekupisa
• zvakakosha kuremekedza kupisa kwakanyanya kwekushanda maererano nehutano hweHDPE
Nguva yekutumira: Sep-11-2022