HDPEkunye nePVC

Izinto zeplastiki zinwebeka kakhulu kwaye zithambile.Zinokubunjwa, zicinezelwe okanye zifakwe kwiimilo ezahlukeneyo.Ubukhulu becala zenziwe ngeoli kunye negesi yendalo.Zimbini iindidi zeeplastiki;thermoplastics kunye ne-thermoset polymers.

Ngelixa iipolymers ze-thermoset zinokunyibilikiswa kwaye zibunjwe kube kanye kwaye zihlale ziqinile xa sele zipholile, i-thermoplastics inokunyibilika kwaye ibunjwe ngokuphindaphindiweyo kwaye ke iyaphinda isetyenziswe.

I-Thermoplastics isetyenziselwa ukwenza izikhongozeli, iibhotile, iitanki zamafutha, iitafile ezisongayo kunye nezitulo, iishedi, iingxowa zeplastiki, izigqumatheli zentambo, iipaneli zokukhusela iimbumbulu, iithoyi zamachibi, i-upholstery, iimpahla kunye nemibhobho yamanzi.

Kukho iintlobo ezininzi ze-thermoplastics, kwaye zihlelwa njenge-amorphous okanye i-semi-crystalline.Ezimbini kuzo zi-amorphousI-PVC(i-polyvinyl chloride) kunye ne-semi-crystalline HDPE (i-polyethylene ephezulu yoxinaniso).Zombini ziipolima zemveliso.

I-Polyvinyl chloride (i-PVC) yi-vinyl polymer engabizi kwaye ihlala ixesha elide esetyenziswa kwiiprojekthi zokwakha.Yesithathu iplastiki esetyenziswa kakhulu emva kwe-polyethylene kunye ne-polypropylene kwaye isetyenziswa ngokubanzi ekuveliseni imibhobho.Ikhaphukhaphu kwaye yomelele, iyenza idume kakhulu kwimibhobho yamanzi engaphezulu komhlaba nangaphantsi komhlaba.Yomelele kakhulu kwaye ifanele ukungcwatywa ngokuthe ngqo kunye nofakelo olungenamsele.

Kwelinye icala, i-high density polyethylene (HDPE) yipolyethylene thermoplastic eyenziwe ngepetroleum.Inamandla aphezulu, inzima, kwaye inokumelana namaqondo aphezulu.
Imibhobho ye-HDPE ikulungele ukusetyenziswa kwimibhobho engaphantsi komhlaba, njengoko ifunyenwe ukuba imanzise kwaye ifunxe amaza othusayo, ngaloo ndlela inciphisa ukunyuka okunokuchaphazela inkqubo.Bakwanayo neyona ndlela ilungileyo yokumelana noxinzelelo lwamalungu kwaye bayakwazi ukurhawuka kunye nokumelana nobushushu.

Nangona zombini izixhobo zomelele kwaye zomelele, ziyahluka ngokwamandla kunye neminye imiba.Kwelinye icala, ziyilelwe ukuba zimelane noxinzelelo olwahlukeneyo.Ukufezekisa umlinganiselo ofanayo woxinzelelo njengombhobho wePVC, udonga lombhobho we-HDPE kufuneka lube ngamaxesha angama-2.5 ubukhulu kunombhobho wePVC.

Ngelixa zombini izixhobo zikwasetyenziselwa ukwenza iziqhushumbisi,HDPEIfunyaniswe ifanelekile kwaye ikhuseleke ngakumbi ukuyisebenzisa kuba inokutshisa iziqhushumbisi ukuya kumphakamo ofanelekileyo.Ukuba iyasilela ukuqalisa ngaphakathi kwesikhongozeli kwaye iqhekekile, isikhongozeli seHDPE asiyi kwaphuka ngamandla amaninzi njengePVC.

Ukushwankathela:

1. I-Polyvinyl Chloride (i-PVC) i-polymer ye-vinyl engabizi kwaye ehlala ixesha elide esetyenziswa kwiiprojekthi zokwakha, ngelixa i-High Density Polyethylene (HDPE) i-polyethylene thermoplastic eyenziwe kwi-petroleum.
2. I-Polyvinyl chloride yiplastiki yesithathu esetyenziswa kakhulu, kwaye i-polyethylene yenye yeeplastiki ezisetyenziswa kakhulu.
3. I-PVC i-amorphous, ngelixa i-HDPE i-semi-crystalline.
4. Zombini zinamandla kwaye zihlala ziqinile, kodwa ngamandla ahlukeneyo kunye nezicelo ezahlukeneyo.I-PVC inzima kwaye yomelele, ngelixa i-HDPE inzima, iyakwazi ukumelana ne-abrasion kwaye iyakwazi ukumelana nobushushu.
5. Imibhobho ye-HDPE ifunyenwe ukuba icinezele kwaye ifunxe amaza othusayo, ngaloo ndlela inciphisa ukunyuka okunokuchaphazela inkqubo, ngelixa i-PVC ingenakukwazi.
6. I-HDPE ifaneleka ngakumbi ukufakwa koxinzelelo oluphantsi, ngelixa i-PVC ifaneleka ngakumbi ukungcwatywa ngokuthe ngqo kunye nokufakwa kwe-trenchless.