Ingabe udidekile yizo zonke izifinyezo zepulasitiki ezikukhathalogi yamapayipi? Ukukhetha izinto ezingalungile njenge-PP uma udinga i-PE kungaholela ekwehlulekeni kwesistimu kanye nokushintsha okubizayo.

I-PP imele i-Polypropylene. Iyi-polymer eqinile, eqinile, futhi ehlala isikhathi eside kakhulu ye-thermoplastic. Ezweni lokufaka amapayipi, idume ngokumelana kwayo nokushisa okungavamile kanye nohlu olubanzi lwezinto zamakhemikhali, okwenza ibe ngumxazululi wezinkinga zezicelo zezimboni ezidinga kakhulu.

Kwa-Pntek, sikholelwa ekusebenziseni izinto ezifanele ukuze senze umsebenzi ofanele.I-Polypropyleneakuyona nje enye ipulasitiki; kuyisisombululo esikhethekile. Kuchwepheshe we-supply chain njengoCarlos, ukuqonda lo mehluko kubalulekile. Uma engachazela iklayenti lezimboni ukuthi kungani i-PP iwukuphela kwesinqumo saboumugqa wemfucuza yamakhemikhali, akagcini nje ngokuthengisa umkhiqizo; uhlinzeka ngesisombululo esiphephile nesesikhathi eside esivikela imisebenzi yabo.

Iyini ipayipi le-PP?

Ucabanga ukuthi wonke amapayipi epulasitiki aqinile afana ngokuyisisekelo? Lokhu kucabanga kuyingozi lapho kubhekene namazinga okushisa aphezulu noma uketshezi oluqothulayo, lapho ipayipi elijwayelekile lingasheshe lonakale futhi liwe.

Ipayipi le-PP liyipayipi eliqondile neliqinile elenziwe nge-Polypropylene. Izici zalo eziyinhloko izinga lokushisa lokusebenza eliphezulu kakhulu uma liqhathaniswa ne-PVC ne-PE, kanye nokumelana okuphezulu nama-acid, ama-alkali, namanye amakhemikhali agqwalisayo. Liyindlela engcono kakhulu yokusetshenziswa kwemisebenzi enzima.

Ngihambe ezitshalweni zamakhemikhali lapho umoya ngokwawo uzwakala ugqwala khona. Kulezo zimo, udinga izinto ongazethemba ngokuphelele.Ipayipi le-PPyilokho okubalulekile. Kumakhasimende kaCarlos ekukhiqizeni noma ekucubunguleni, ukuthembeka kwepayipi le-PP kusho ukuphepha kokusebenza nokugwema ukuvuza okubi kakhulu. Kungumkhiqizo osezingeni eliphezulu wezinhlelo zokusebenza lapho ukwehluleka kungeyona inketho. Yingakho sigcizelela ama-resin asezingeni eliphezulu kakhulu ezinhlelweni zethu ze-PP.

Akuzona zonke izinhlobo ze-PP ezifanayo

Ukuze ukhethe ipayipi le-PP elifanele, udinga ukwazi ngezinhlobo zalo ezahlukene. Izinhlobo ezintathu eziyinhloko ozohlangana nazo zenzelwe imisebenzi ehlukene kancane.

• I-PP-H (i-Homopolymer):
  Lolu uhlobo lwe-PP oluqinile kakhulu. Lunamandla aphezulu okushisa okuphezulu kanye nokumelana okuhle kakhulu namakhemikhali. Uzoluthola kakhulu ezitshalweni zokucubungula zezimboni kanye namakhemikhali.
• I-PP-B (i-Block Copolymer):
  Lolu hlobo lunezithasiselo ezenza luqine kakhulu futhi lungathinteki kalula, ikakhulukazi emazingeni okushisa aphansi. Luhle kakhulu kumapayipi kadoti ezimboni angase aqhume.
• I-PP-R (i-Copolymer engahleliwe):
  Lena iyona eguquguqukayo kakhulu kwezintathu futhi iyindinganiso yamapayipi amanzi ashisayo nabandayo ezakhiweni. Isebenza kahle kakhulu ekusingatheni ingcindezi isikhathi eside emazingeni okushisa aphezulu.

Kumphathi wokuthenga, kubalulekile ukwazi ukuthi hlobo luni lwempahla okufanele uyigcine. UCarlos angase agcine i-PP-R yamakhasimende akhe okwakha amapayipi kanye ne-PP-H yamakhasimende akhe ezimboni.

I-PP isetshenziselwani?

Ingabe usebenzisa ipayipi elijwayelekile emsebenzini othize kakhulu nodinga amandla? Lokhu kungafani kuholela ekuvuza, ekungcoleni koketshezi, kanye nesikhathi esibizayo sokungasebenzi kwesistimu. Udinga ithuluzi elikhethekile.

Ipayipi le-PP lisetshenziswa ezisetshenziswayo ezishisa kakhulu noma ezigqwalisayo kakhulu kumapulasitiki avamile njenge-PVC. Ukusetshenziswa kwalo okuyinhloko kusekuthuthweni kwamakhemikhali ezimbonini, ekukhipheni amanzi elabhorethri, ezitshalweni zokuhlanza amanzi amdaka, kanye nemigqa yokuphakelwa kwamanzi ashisayo nabandayo ezakhiweni (ikakhulukazi i-PP-R).

Izinhlelo zokusebenza ze-PP zikukhombisa ngqo ukuthi amandla ayo akuphi. Sake sahlinzeka ngephrojekthi yesitshalo esikhulu sokucubungula ukudla. Kwakudingeka bathuthe uketshezi lokuhlanza olushisayo nolune-asidi encane. I-PVC ngabe ithambile, futhi insimbi ngabe igugile. I-PP yayiyisisombululo esiphelele nesihlala isikhathi eside. Lapho uCarlos ekwazi ukukhomba lezi zimo zokusetshenziswa ezithile, usiza amakhasimende akhe ukuthi abone inani futhi agweme ukwenza iphutha elibizayo.

Izindawo Eziyinhloko Zokusebenza

I-PP ikhanya lapho ezinye izinto zilwa khona. Inhlanganisela yayo eyingqayizivele yezakhiwo iyenza ibe ukukhetha okuhle kakhulu kwemikhakha eminingana ebalulekile.

Imboni/Isicelo	Kungani Kusetshenziswa i-PP
Imigqa Yamakhemikhali Yezimboni	Ingathutha ngokuphephile izinhlobo eziningi zama-asidi, ama-alkali, kanye nemfucuza yezimboni ngaphandle kokubola noma ukubola.
Amapayipi Amanzi Ashisayo (PP-R)	Ingakwazi ukumelana namazinga okushisa amanzi afinyelela ku-90°C (194°F) njalo futhi ayinikezi ukunambitheka noma iphunga emanzini okuphuza.
Ukwelashwa Kwamanzi Angcolile	Iyamelana nengxube eyinkimbinkimbi yamakhemikhali atholakala emanzini angcolile ezimbonini nakomasipala, okuqinisekisa impilo yenkonzo ende nethembekile.
Amalebhu kanye nokunakekelwa kwezempilo	Isetshenziselwa izinhlelo zokukhipha amanzi ezidinga ukusingatha imfucuza yamakhemikhali ehlukahlukene ngaphandle kokuvuza noma ukonakala ngokuhamba kwesikhathi.

Ukuqonda lezi zinhlelo zokusebenza kusiza uCarlos nethimba lakhe lokuthengisa ukuthi babone amakhasimende anezinkinga ezingaxazululwa yipayipi le-PP kuphela.

Ingabe i-PP inamandla kune-PVC?

Ingabe ukhetha i-PVC ngokuzenzakalelayo ngoba ivame kakhulu? Lokhu kungaba yiphutha elikhulu lapho uhlelo lwakho luhilela ukushisa noma amakhemikhali athile, okuholela ekuqhumeni kwamapayipi nokuvuza okuyingozi.

Kuncike ekutheni uchaza kanjani “okunamandla.” Ezingeni lokushisa legumbi, i-PVC iqinile kakhulu. Kodwa-ke, i-PP ingcono kakhulu ezindaweni ezimbili ezibalulekile: ingamelana namazinga okushisa aphezulu kakhulu, futhi inamandla okushaya kangcono, okusho ukuthi cishe ayinakuqhekeka uma ishaywa.

Lona ngumbuzo engiwuzwa ngaso sonke isikhathi. Impendulo ayikho mayelana nokuthi yimuphi ongcono kakhulu, kodwa ukuthi yimuphi ofanele isimo esithile. Umsebenzi wami ukuqinisekisa ukuthi ozakwethu, njengoCarlos, banalo lolu lwazi. Uma ikhasimende limbuza lo mbuzo, alikwazi ukuphendula ngokuthi “yebo” noma “cha” nje, kodwa ngeseluleko sochwepheshe esibasiza ukuba bakhethe ipayipi elifanele, bakhe idumela lakhe njengomhlinzeki othembekile.

Ukuqhathanisa Ikhanda Nekhanda

Isici	I-PP (i-Polypropylene)	I-PVC (i-Polyvinyl Chloride)
Izinga Lokushisa Eliphezulu	Kuhle kakhulu, cishe ama-90°C (194°F)	Kubi, cishe cishe ku-60°C (140°F) kuphela
Ukumelana namakhemikhali	Kuhle kakhulu, ikakhulukazi kuma-asidi nezisekelo.	Kuhle, kodwa kungonakaliswa amanye amakhemikhali afana nezinyibilikisi.
Amandla Omthelela	Kuhle kakhulu. Kuqinile futhi cishe ngeke kuqhekeke.	Kuhle. Kuqinile kakhulu futhi kungaba buthakathaka.
Indlela Yokujoyina	I-Heat Fusion (ukushisela). Kwakha ijoyinti elihlala njalo nelingenamthungo.	I-solvent Cement (ukunamathela) noma ama-gasket.
Izindleko	Izindleko zokuqala eziphezulu ngepayipi/ukufakwa.	Izindleko zokuqala eziphansi.

Ngakho-ke, ngomugqa wokunisela ngamanzi abandayo, i-PVC iyisinqumo esihle nesingabizi kakhulu. Kodwa ngomugqa wamanzi ashisayo efektri noma umsele wamakhemikhali elebhu, i-PP yiyona ndlela kuphela ephephile nethembekile. Izindleko ezengeziwe zikuthengela ukuphepha kanye nokuphila isikhathi eside kwenkonzo.

Ungawajoyina kanjani amapayipi e-PP?

Ukhathazekile ukuthi amalunga ohlelweni lwakho lwamapayipi azoba yindawo yokuqala lapho kuvela khona ukuvuza? Ngepayipi le-PP, ukusebenzisa iglue noma ama-clamp omshini kuyindlela yokudala inhlekelele.

Amapayipi e-PP ahlanganiswa kusetshenziswa i-heat fusion welding. Le nqubo isebenzisa ithuluzi elikhethekile lokuncibilikisa ubuso bepayipi kanye nokufakwa, okube sekusunduzwa ndawonye. Njengoba ephola, ahlangana abe yipulasitiki eyodwa, ehlala njalo, futhi engavuzi.

Ijoyinti liyingxenye ebaluleke kakhulu kunoma yiluphi uhlelo lwamapayipi. Indlela yokuhlanganisa ukushisa esetshenziswa ku-PP, ngombono wami, iyindlela yokuxhumana ethembeke kakhulu. Isusa ubuthakathaka beglue engonakala noma izivalo zemishini ezingakhululeka. Kumakhasimende kaCarlos asebenza ngenkontileka, lokhu kusho ukuthula kwengqondo. Bangafaka uhlelo lwe-PP, baluhlole, futhi bazi ukuthi amalunga aqinile futhi ahlala isikhathi eside njengepayipi uqobo.

Izindlela Ezimbili Eziyinhloko Zokuhlanganisa

Kunezindlela ezimbili eziyinhloko zokushisela i-PP, futhi leyo oyisebenzisayo incike kusayizi wepayipi.

• Ukuhlanganiswa Kwesokhethi:
  Lena yindlela evame kakhulu yamapayipi amancane anobubanzi, ngokuvamile afinyelela ku-125mm (cishe amasentimitha angu-4). Ithuluzi lokushisa elikhethekile linohlangothi lwesilisa nolwesifazane. Lishisa ingaphandle lesiphelo sepayipi kanye nengaphakathi lesokhethi lokufaka ngesikhathi esisodwa. Bese ususa ithuluzi bese ucindezela ipayipi endaweni yokufakela. Kwakha ijoyinti eliqinile kakhulu, elibukeka lihlanzekile.
• Ukuhlanganiswa Kwezinqe:
  Kumapayipi amakhulu, lena yindlela ejwayelekile. Iziphetho zesikwele zamapayipi amabili (noma ipayipi kanye nokufakwa) zibanjwa emshinini omkhulu. Ipuleti lokushisa libekwa phakathi kwawo, lincibilikise zombili iziphetho. Ipuleti liyasuswa, bese umshini ucindezela iziphetho ezincibilikisiwe ndawonye, ​​kwakha ubuhlalu obuqinile obuzungeze ingaphandle lepayipi. Le ndlela idala ingaphakathi elibushelelezi ngokuphelele, elihle kakhulu ekugelezeni.

Zombili izindlela zakha ilunga elihlala njalo elingeke livuze.

Isiphetho

I-PP, noma i-Polypropylene, iyipayipi elikhethekile lokusetshenziswa kokushisa okuphezulu kanye namakhemikhali. Inamandla kune-PVC kulezi zimo futhi ihlanganiswa ukuhlanganiswa kokushisa okuhlala njalo, okudala uhlelo oluthembeke kakhulu.