Udidekile ngazo zonke izinketho zokufaka ipulasitiki? Ukukhetha okungalungile kungaholela ekubambezelekeni kwephrojekthi, ukuvuza, kanye nokulungiswa okubizayo. Ukuqonda ukufakwa kwe-PP kubalulekile ekukhetheni ingxenye efanele.

Ukufakwa kwe-PPziyizixhumi ezenziwe nge-polypropylene, i-thermoplastic eqinile futhi eguquguqukayo. Zisetshenziswa kakhulu ukuhlanganisa amapayipi ezinhlelweni ezidinga ukubekezelela ukushisa okuphezulu kanye nokumelana okuhle namakhemikhali, okwenza zibe zilungele ukusetshenziswa kwezimboni, elebhu kanye namanzi ashisayo.

Muva nje ngishayele ucingo uBudi, umphathi wokuthenga e-Indonesia. Unguchwepheshe ku-PVC kodwa ube nekhasimende elisha elicela “Ukufakwa kokucindezela kwe-PP"ngokulungiswa kwelabhorethri. UBudi wayengaqiniseki ngokuphelele ngomehluko obalulekile nokuthi uzoyincoma nini i-PP kune-PVC njengoba ayeyazi kahle. Wayekhathazekile ngokunikeza iseluleko esingalungile. Isimo sakhe sivamile. Ochwepheshe abaningi bajwayelene nohlobo olulodwa noma ezimbili zezinto zokufaka amapayipi kodwa bathola ukuthi ukuhlukahluka okukhulu kwepulasitiki kuyamangalisa. Ukwazi amandla athile ezinto ezifana ne-polypropylene yikho okuhlukanisa umthengisi olula kumhlinzeki wezixazululo. Ake sihlukanise ukuthi yini eyenza ukufakwa kwe-PP kube yingxenye ebalulekile ekufakweni kwamapayipi kwanamuhla.

Kuyini ukufakelwa kwe-PP?

Udinga ukuxhuma amapayipi ukuze uthole umsebenzi onzima, kodwa awuqiniseki ukuthi i-PVC ingakwazi yini ukuwusingatha. Ukusebenzisa izinto ezingalungile kuzoholela ekwehlulekeni kohlelo kanye nokulungiswa kabusha okubizayo.

Ukufakwa kwe-PP kuyisici sokuxhuma esenziwe ngepulasitiki ye-polypropylene. Izici zayo eziyinhloko ukuqina kwezinga lokushisa eliphezulu (kufika ku-180°F noma 82°C) kanye nokumelana okuphezulu nama-acid, ama-alkali, namanye amakhemikhali agqwalisayo, yingakho ikhethwe kune-PVC ejwayelekile ezindaweni ezithile.

Uma sibhekisisa kahle ukufakwa kwe-PP, sibheka ngempela izakhiwo ze-polypropylene uqobo.I-PVC, okungaba buthakathaka ngamakhemikhali athile noma kuguquke emazingeni okushisa aphezulu, i-PP igcina ubuqotho bayo besakhiwo. Lokhu kwenza kube yinto esetshenziswa kakhulu ezintweni ezifana nemigqa yokulahla amakhemikhali elebhu yaseyunivesithi noma ukujikeleza kwamanzi ashisayo esakhiweni sezentengiselwano. Ngichazele uBudi ukuthi nakuba kokubili i-PVC kanye ne-PPUkufakwa kwe-PPukuxhuma amapayipi, imisebenzi yawo ihluke kakhulu. Usebenzisa i-PVC ekufakeni amanzi abandayo ajwayelekile. Usebenzisa i-PP uma kuhileleke ukushisa noma amakhemikhali. Waqonda ngokushesha. Akusikho ukuthi yikuphi "okungcono," kodwa ukuthi yikuphiithuluzi elifanelengomsebenzi othile okudingeka ikhasimende lakhe liwenze.

Ukufakwa kwe-PP vs. PVC: Ukuqhathanisa Okusheshayo

Ukuze kucace kahle ukukhetha, nansi incazelo elula yokuthi impahla ngayinye ikhanya kuphi.

Kusho ukuthini i-PP ekufakeni amapayipi?

Ubona izinhlamvu ezithi “PP” kukhathalogi yomkhiqizo, kodwa zisho ukuthini ngempela ohlelweni lwakho? Ukungazinaki amakhodi ezinto ezibonakalayo kungakuholela ekuthengeni umkhiqizo ongafanele.

Ekufakeni amapayipi, i-PP imele i-Polypropylene. Igama le-polymer ye-thermoplastic esetshenziselwa ukwenza ipayipi noma ukufakelwa. Leli lebula likutshela ukuthi umkhiqizo wakhelwe ukuqina, ukumelana namakhemikhali, kanye nokusebenza kahle emazingeni okushisa aphezulu, okuwuhlukanisa kwamanye amapulasitiki afana ne-PVC noma i-PE.

I-Polypropylene iyingxenye yomndeni wezinto ezibizwa ngokuthii-thermoplastics. Ngamazwi alula, lokhu kusho ukuthi ungayifudumeza ize incibilike, uyipholise, bese uyifudumeza futhi ngaphandle kokuwohloka okukhulu. Lesi sici senza kube lula ukukhiqiza ngezimo eziyinkimbinkimbi njenge-tee-fittings, i-elbow, kanye ne-adapters ngokusebenzisa i-injection molding. Kumphathi wokuthenga ofana noBudi, ukwazi "i-PP" kusho ukuthi i-polypropylene isinyathelo sokuqala. Okulandelayo ukuqonda ukuthi kunezinhlobo ezahlukene ze-PP. Ezimbili ezivame kakhulu yileziI-PP-H(i-Homopolymer) kanye ne-PP-R (i-Random Copolymer). I-PP-H iqinile kakhulu futhi ivame ukusetshenziswa ezinhlotsheni zezimboni. I-PP-R iguquguquka kakhulu futhi iyindinganiso yezinhlelo zamapayipi amanzi ashisayo nabandayo ezakhiweni. Lolu lwazi lumsiza ukuba abuze amakhasimende akhe imibuzo engcono ukuqinisekisa ukuthi bathola umkhiqizo oqondile abawudingayo.

Izinhlobo ze-Polypropylene kumapayipi

Iyini ipayipi le-PP?

Udinga ipayipi lamanzi ashisayo noma umugqa wamakhemikhali futhi ufuna ukugwema ukugqwala kwensimbi. Ukukhetha izinto ezingalungile zamapayipi kungaholela ekungcoleni, ekuvuzeni, kanye nokuphila isikhathi esifushane kwenkonzo.

Ipayipi le-PP liyipayipi elenziwe ngepulasitiki ye-polypropylene, elenzelwe ngqo ukuthutha uketshezi olushisayo, amanzi aphuzwayo, kanye namakhemikhali ahlukahlukene ngokuphephile. Lilula, aligqwali, futhi linikeza ubuso bangaphakathi obubushelelezi obumelana nokwakheka kwezikali, okuqinisekisa ukugeleza okuqhubekayo ngokuhamba kwesikhathi.

Amapayipi e-PP asetshenziswa kanye nokufakwa kwe-PP ukudala uhlelo oluphelele nolufanayo. Enye yezinzuzo ezinkulu ukuthi ahlanganiswa kanjani. Kusetshenziswa indlela ebizwa ngokuthiukushisela ukushisa okuhlanganisiwe, ipayipi kanye nokufakwa kuyashiswa futhi kuhlanganiswe ndawonye unomphela. Lokhu kudala okuqinile,ijoyinti elingavuzilokho kuqine njengepayipi uqobo, kususa amaphuzu abuthakathaka atholakala ezinhlelweni ezinamathiselwe (i-PVC) noma ezifakwe intambo (insimbi). Ngake ngasebenza neklayenti endaweni entsha yokucubungula ukudla. Bakhethe i-fullUhlelo lwe-PP-Rngenxa yamanzi abo ashisayo kanye nemigqa yokuhlanza. Kungani? Ngoba izinto azizange zikhiphe noma yimaphi amakhemikhali emanzini, futhi amalunga ahlanganisiwe asho ukuthi kwakungekho mifantu yokukhula kwamagciwane. Lokhu kwaqinisekisa ubumsulwa bomkhiqizo wabo kanye nokuphepha kwenqubo yabo. Kubo, izinzuzo zepayipi le-PP zadlula ngale kwamapayipi alula; kwakuyindaba yokulawula ikhwalithi.

Ziyini izinto zokufaka ze-PB?

Uzwa nge-PB fittings bese uzibuza ukuthi ingabe iyindlela ehlukile ye-PP. Ukudideka kwalezi zinto ezimbili kungaba yiphutha elikhulu, njengoba umuntu enomlando wokwehluleka okubanzi.

Ukufakwa kwe-PB kuyizixhumi zamapayipi e-Polybutylene (PB), into yokufakelwa eguquguqukayo eyayivame ukusetshenziswa kumapayipi asekhaya. Ngenxa yamazinga aphezulu okwehluleka ngenxa yokuwohloka kwamakhemikhali, ukufakelwa kwe-PB kanye nokufakwa kwayo akusavunyelwa yimithetho eminingi yokufakelwa futhi kubhekwa njengokuphelelwe yisikhathi nokungathembeki.

Leli iphuzu elibalulekile lemfundo kunoma ubani embonini. Nakuba i-PP (i-Polypropylene) iyinto yesimanje nethembekile, i-PB (I-Polybutylene) iyisandulela sayo esiyinkinga. Kusukela ngawo-1970 kuya kowama-1990, i-PB yayifakwe kabanzi emigqeni yamanzi ashisayo nabandayo. Kodwa-ke, kwatholakala ukuthi amakhemikhali avamile emanzini kamasipala, njenge-chlorine, ahlasela i-polybutylene kanye nezinto zayo zepulasitiki, okwenza ziqhekeke. Lokhu kwaholela ekuqhekekeni okungazelelwe kanye nokuvuza okubi kakhulu, okwabangela umonakalo wamanzi wezigidigidi zamaRandi emakhaya amaningi. Lapho uBudi ethola isicelo ngezikhathi ezithile sezinto zokufakelwa ze-PB, ngokuvamile kuba ukulungiswa. Ngimqeqeshe ukuba eluleke ikhasimende ngokushesha ngezingozi zohlelo lonke lwe-PB futhi ancome ukushintshwa okugcwele ngezinto ezizinzile, zesimanje ezifanaI-PP-R or I-PEXAkukhona ukwenza ukuthengisa okukhulu; kumayelana nokuvikela ikhasimende ekuhlulekeni kwesikhathi esizayo.

I-Polypropylene (PP) uma kuqhathaniswa ne-Polybutylene (PB)

Isiphetho

Ukufakwa kwe-PP, okwenziwe nge-polypropylene eqinile, kuyindlela ekhethwa kakhulu yezinhlelo zamanzi ashisayo namakhemikhali. Ziyisisombululo sesimanje nesithembekile, ngokungafani nezinto ezindala, ezingasebenzi kahle njenge-polybutylene.