Udidekile zizo zonke iindlela zokufakela iplastiki? Ukukhetha engalunganga kunokukhokelela ekulibazisekeni kweprojekthi, ukuvuza, kunye nokulungiswa okubizayo. Ukuqonda izixhobo zePP kubalulekile ekukhetheni indawo efanelekileyo.

Izixhobo zePPzizixhobo zokuqhagamshela ezenziwe nge-polypropylene, i-thermoplastic eqinileyo nesebenziseka lula. Zisetyenziswa kakhulu ukudibanisa imibhobho kwiinkqubo ezifuna ukunyamezela ubushushu obuphezulu kunye nokumelana okuhle neekhemikhali, nto leyo ezenza ukuba zilungele ukusetyenziswa kwimizi-mveliso, elebhu kunye namanzi ashushu.

Kutshanje nditsalele umnxeba kuBudi, umphathi wokuthenga eIndonesia. Uyingcali kwi-PVC kodwa unomthengi omtsha ocela “Izixhobo zoxinzelelo lwePP"Ukulungiswa kwelebhu. UBudi wayengaqinisekanga ngokupheleleyo ngomahluko ophambili kunye nokuba uza kuyicebisa nini i-PP kune-PVC awayeyazi kakuhle. Wayexhalabile ngokubonelela ngeengcebiso ezingalunganga. Imeko yakhe ixhaphakile. Iingcali ezininzi ziqhelene nohlobo olunye okanye ezimbini zezinto zokufaka imibhobho kodwa zifumanisa ukuba iintlobo ngeentlobo zeplastiki zinzima kakhulu. Ukwazi amandla athile ezinto ezifana ne-polypropylene yinto eyahlula umthengisi olula kumnikezeli wezisombululo. Makhe sihlalutye into eyenza izixhobo ze-PP zibe yinxalenye ebalulekileyo kwimibhobho yanamhlanje.

Yintoni i-PP fitting?

Kufuneka uqhagamshele imibhobho ukuze wenze umsebenzi onzima, kodwa awuqinisekanga ukuba i-PVC ingakwazi na ukumelana nawo. Ukusebenzisa izinto ezingalunganga kuya kukhokelela ekungasebenzi kakuhle kwenkqubo kunye nokulungiswa okubiza kakhulu.

I-PP fitting sisiqwenga soqhagamshelo esenziwe ngeplastiki ye-polypropylene. Iimpawu zayo eziphambili kukuzinza kobushushu obuphezulu (ukuya kuthi ga kwi-180°F okanye i-82°C) kunye nokumelana okuphezulu kwii-asidi, ii-alkalis, kunye nezinye iikhemikhali ezibolayo, yiyo loo nto ikhethwe kune-PVC eqhelekileyo kwiindawo ezithile.

Xa sijonga kufutshane nokufakwa kwePP, sijonga ngokwenene iimpawu zepolypropylene ngokwayo.I-PVC, enokuba buthathaka ngenxa yeekhemikhali ezithile okanye igule xa kushushu kakhulu, i-PP igcina ulwakhiwo lwayo lusemgangathweni. Oku kwenza ukuba ibe yinto esetyenziswa kakhulu kwizinto ezifana nemigca yenkunkuma yeekhemikhali kwilebhu yeyunivesithi okanye ukujikeleza kwamanzi ashushu kwisakhiwo sorhwebo. Ndimchazele uBudi ukuba nangona zombini i-PVC kunye ne-PPIzixhobo zePPUkudibanisa imibhobho, imisebenzi yabo yahlukile kakhulu. Usebenzisa i-PVC kwimibhobho yamanzi abandayo ngokubanzi. Usebenzisa i-PP xa kubandakanyeke ubushushu okanye iikhemikhali. Waqonda ngoko nangoko. Ayikuko ukuba yeyiphi "engcono," kodwa yeyiphiisixhobo esifanelekileyongomsebenzi othile ekufuneka umthengi wakhe awenze.

Izinto zokufakelwa zePP vs. PVC: Uthelekiso olukhawulezileyo

Ukuze ukhetho lucace ngakumbi, nantsi indlela elula yokuchaza apho into nganye ikhanya khona.

Ithetha ukuthini i-PP kwimibhobho?

Uyabona oonobumba "PP" kwikhathalogu yemveliso, kodwa bathetha ukuthini ngokwenene kwinkqubo yakho? Ukungahoyi iikhowudi zezinto kunokubangela ukuba uthenge imveliso engafanelekanga.

Kwimibhobho, i-PP imele iPolypropylene. Ligama lepolymer ye-thermoplastic esetyenziselwa ukwenza umbhobho okanye i-fitting. Le lebheli ikuxelela ukuba imveliso yenzelwe ukuqina, ukumelana neekhemikhali, kunye nokusebenza kakuhle kumaqondo obushushu aphezulu, nto leyo eyahlula kwezinye iiplastiki ezifana ne-PVC okanye i-PE.

I-Polypropylene yinxalenye yosapho lwezinto ezibizwa ngokubai-thermoplastics. Ngamazwi alula, oku kuthetha ukuba ungayifudumeza ide inyibilike, uyipholise, uze uyifudumeze kwakhona ngaphandle kokuwohloka okukhulu. Le mpawu yenza kube lula ukuyenza ibe ziimo ezinzima ezifana nee-tee-fittings, iingqiniba, kunye nee-adapters ngokusebenzisa i-injection molding. Kumphathi wokuthenga ofana noBudi, ukwazi "i-PP" kuthetha ukuba i-polypropylene linyathelo lokuqala. Okulandelayo kukuqonda ukuba kukho iintlobo ezahlukeneyo ze-PP. Ezona zimbini zixhaphakileyo zeziI-PP-H(iHomopolymer) kunye nePP-R (iRandom Copolymer). I-PP-H iqinile ngakumbi kwaye isetyenziswa rhoqo kwizicelo zoshishino. I-PP-R iguquguquka ngakumbi kwaye yeyona ndlela isetyenziswayo kwiinkqubo zombhobho wamanzi ashushu nabandayo kwizakhiwo. Olu lwazi lumnceda ukuba abuze abathengi bakhe imibuzo engcono ukuqinisekisa ukuba bafumana imveliso abayifunayo.

Iintlobo zePolypropylene kwiMibhobho

Yintoni umbhobho wePP?

Udinga umbhobho wamanzi ashushu okanye umgca weekhemikhali kwaye ufuna ukuphepha ukugqwala kwesinyithi. Ukukhetha umbhobho ongafanelekanga kunokukhokelela ekungcoleni, ekuvuzeni, nasekusebenzeni ixesha elifutshane.

Umbhobho wePP yityhubhu eyenziwe ngeplastiki yepolypropylene, eyenzelwe ngokukodwa ukuthutha ulwelo olushushu, amanzi okusela, kunye neekhemikhali ezahlukeneyo ngokukhuselekileyo. Ilula, ayidli mhlwa, kwaye inika umphezulu wangaphakathi ogudileyo omelana nokwakheka kwezikali, ukuqinisekisa ukuhamba rhoqo ngokuhamba kwexesha.

Iipayipi zePP zisetyenziswa kunye nee-PP fittings ukwenza inkqubo epheleleyo nefanayo. Enye yezona nzuzo zinkulu yindlela ezidityaniswe ngayo. Ukusebenzisa indlela ebizwa ngokuba yiukuwelda ubushushu obudibeneyo, umbhobho kunye nokufakelwa kuyafudunyezwa kwaye kudityaniswe ngokusisigxina. Oku kudala into eqinileyo,ilungu elingavuziyoenamandla njengepayipi ngokwayo, isusa iindawo ezibuthathaka ezifumaneka kwiinkqubo ezincamathelisiweyo (i-PVC) okanye ezinemisonto (yesinyithi). Ndakha ndasebenza nomthengi kwindawo entsha yokulungisa ukutya. Bakhethe i-fullInkqubo ye-PP-Rngenxa yamanzi abo ashushu kunye nemitya yokucoca. Ngoba? Kuba izinto azizange zikhuphe naziphi na iikhemikhali emanzini, kwaye amalungu adibeneyo athetha ukuba akukho mingxunya yokuba iintsholongwane zikhule. Oku kuqinisekisa ubunyulu bemveliso yabo kunye nokhuseleko lwenkqubo yabo. Kubo, iingenelo zepayipi ye-PP zazingaphaya kokufaka imibhobho; yayingumbandela wolawulo lomgangatho.

Zithini izinto zokufakelwa ze-PB?

Uva ngee-PB fittings uze uzibuze ukuba ingaba zezinye iindlela ezingasetyenziswayo endaweni ye-PP. Ukudibanisa ezi zinto zimbini kunokuba yimpazamo enkulu, njengoko umntu enembali yokusilela okukhulu.

Izixhobo zokufaka ii-PB zizihlanganisi zeepayipi zePolybutylene (PB), izinto zokufaka iipayipi eziguquguqukayo ezaziqheleke kakhulu kwiipayipi zasekhaya. Ngenxa yamazinga aphezulu okusilela ngenxa yokonakala kweekhemikhali, izixhobo zokufaka ii-PB kunye nezixhobo zazo azisavunywa ziikhowudi ezininzi zepayipi kwaye zithathwa njengeziphelelwe lixesha nezingenakuthenjwa.

Le yingongoma ebalulekileyo yemfundo kuye nabani na kweli shishini. Nangona i-PP (iPolypropylene) iyinto yanamhlanje nenokuthenjwa, i-PB (I-Polybutylene) yiyo eyandulela ingxaki. Ukususela ngeminyaka yoo-1970 ukuya kweyoo-1990, i-PB yayifakelwe kakhulu kwimigca yamanzi ashushu nabandayo. Nangona kunjalo, kwafunyaniswa ukuba iikhemikhali eziqhelekileyo emanzini kamasipala, njenge-chlorine, zihlasele i-polybutylene kunye nezixhobo zayo zeplastiki, nto leyo eyenza ukuba zibe buthathaka. Oku kukhokelele kwiimfanta ngequbuliso kunye nokuvuza okubi kakhulu, okubangele umonakalo wamanzi kwiibhiliyoni zeerandi kumakhaya angenakubalwa. Xa uBudi efumana isicelo sezixhobo ze-PB ngamanye amaxesha, ngokuqhelekileyo zezokulungiswa. Ndimqeqeshe ukuba acebise umthengi ngoko nangoko malunga neengozi zenkqubo yonke ye-PB kwaye acebise ukuba kutshintshwe ngokupheleleyo ngezinto ezizinzileyo nezanamhlanje ezifanaI-PP-R or I-PEXAsikuko ukwenza intengiso enkulu; kukukhusela umthengi ekusileleni kwixesha elizayo.

I-Polypropylene (PP) xa ithelekiswa ne-Polybutylene (PB)

Isiphelo

Izixhobo zePP, ezenziwe ngepolypropylene eqinileyo, zezona zikhethwayo kwiinkqubo zamanzi ashushu kunye neekhemikhali. Zisisombululo sanamhlanje nesinokuthenjwa, ngokungafaniyo nezinto ezindala nezingasebenzi kakuhle ezifana nepolybutylene.