Incazelo ye-HDPE
I-HDPE isifinyezo esivame ukusetshenziselwa ukubhekisela ku-polyethylene ephezulu kakhulu. Siphinde sikhulume ngamapuleti e-PE, LDPE noma e-PE-HD. I-Polyethylene iyimpahla ye-thermoplastic eyingxenye yomndeni wamapulasitiki.
Kunezinhlobo ezahlukene ze-polyethylenes. Lo mehluko uchazwa yinqubo yokukhiqiza ezohluka. Sikhuluma nge-polyethylene:
• ukuminyana okuphansi (LDPE)
• high density (HDPE)
• ukuminyana okuphakathi (PEMD).
Ngaphezu kwalokho, kusekhona ezinye izinhlobo ze-polyethylene: i-chlorinated (PE-C), enesisindo esiphezulu kakhulu samangqamuzana.
Zonke lezi zifinyezo nezinhlobo zezinto zenziwe zifane ngaphansi kwe-egis ye-NF EN ISO 1043-1 ejwayelekile.
I-HDPE iwumphumela oqondile wenqubo yokuminyana okuphezulu: I-High Density Polyethylene. Ngalo, singenza amathoyizi ezingane, izikhwama zepulasitiki, kanye namapayipi asetshenziselwa ukuthutha amanzi!
Ipulasitiki ye-HDPE ikhiqizwa nge-petroleum synthesis. Ngokwakhiwa kwayo, i-HDPE ibandakanya izinyathelo ezahlukahlukene:
• ukuphuza utshwala
• ukuqhekeka kwe-steam
• i-polymerization
• imbudumbudu
Ngemuva kwalolu shintsho, umkhiqizo umhlophe qhwa, uguquguqukayo. Khona-ke kulula kakhulu ukubumba noma ukufaka umbala.
Amacala okusebenzisa i-HDPE embonini
Ngenxa yezimfanelo zayo kanye nezinzuzo, i-HDPE isetshenziswa ezindaweni eziningi zezimboni.
Itholakala yonke indawo esizungezile ekuphileni kwethu kwansuku zonke. Nazi izibonelo:
Ukwenziwa kwamabhodlela epulasitiki nokupakishwa kwepulasitiki
I-HDPE yaziwa kakhulu embonini yokudla, ikakhulukazi ekwenzeni amabhodlela epulasitiki.
Kuyisitsha esihle kakhulu sokudla noma iziphuzo noma ukwakha izikepisi zamabhodlela. Abukho ubungozi bokuphuka njengoba kungaba nengilazi.
Ngaphezu kwalokho, ukupakishwa kwepulasitiki ye-HDPE kunenzuzo enkulu yokuthi igaywe kabusha.
Ngaphandle kwemboni yokudla, i-HDPE itholakala kwezinye izingxenye zemboni ngokujwayelekile:
• ukwenza amathoyizi,
• izivikelo zepulasitiki zamabhukwana,
• amabhokisi okugcina
• ekwenzeni izikebhe-ama-kayaks
• ukudalwa kwamabhakhoni
• nabanye abaningi !
I-HDPE embonini yamakhemikhali neyokwenza imithi
Izimboni zamakhemikhali nezemithi zisebenzisa i-HDPE ngoba inezinto ezimelana namakhemikhali. Kuthiwa ayisebenzi ngamakhemikhali.
Ngakho-ke, izosebenza njengesitsha:
• ama-shampoos
• imikhiqizo yasendlini okufanele isetshenziswe ngokucophelela
•ukugeza
• amafutha enjini
Ibuye isetshenziselwe ukwakha amabhodlela emithi.
Ngaphezu kwalokho, siyabona ukuthi amabhodlela aklanywe nge-polypropylene anamandla nakakhulu ekulondolozeni imikhiqizo lapho enemibala noma enemibala.
I-HDPE yemboni yezokwakha kanye nokuqhutshwa koketshezi
Okokugcina, enye yezindawo ezisebenzisa kakhulu i-HDPE wumkhakha wamapayipi kanye nomkhakha wezokwakha ngokujwayelekile.
Ochwepheshe bezokuthuthwa kwendle noma ezokwakha bawusebenzisela ukwakha nokufaka amapayipi azosetshenziselwa uketshezi (amanzi, igesi).
Kusukela ngawo-1950s, ipayipi le-HDPE lithathe indawo yamapayipi okuhola. Amapayipi omthofu avalwa kancane kancane ngenxa yobuthi bawo emanzini okuphuza.
Ngakolunye uhlangothi, ipayipi le-polyethylene ephezulu (i-HDPE), ipayipi elenza kube nokwenzeka ukuqinisekisa ukusatshalaliswa kwamanzi okuphuza: ingenye yamapayipi asetshenziswa kakhulu kulo msebenzi wokunikeza amanzi okuphuza.
I-HDPE inikeza inzuzo yokumelana nokuhlukahluka kokushisa kwamanzi epayipini, ngokungafani ne-LDPE (i-polyethylene enencazelo ephansi). Ukusabalalisa amanzi ashisayo ngaphezu kuka-60 °, sizophendukela kumapayipi e-PERT (i-polyethylene ukumelana nezinga lokushisa).
I-HDPE iphinde yenza kube nokwenzeka ukuthutha igesi ngeshubhu, ukwakha amapayipi noma izakhi zokungenisa umoya esakhiweni.
Izinzuzo kanye nokubi kokusebenzisa i-HDPE kumasayithi ezimboni
Kungani i-HDPE isetshenziswa kalula kangaka ezindaweni zamapayipi ezimbonini? Futhi ngokuphambene nalokho, kungaba yini amaphuzu ayo amabi?
Izinzuzo ze-HDPE njengezinto ezibonakalayo
I-HDPE iyinto enezinto ezinenzuzo eziningana ezithethelela ukusetshenziswa kwayo embonini noma ukuhanjiswa koketshezi ekubhobhozeni.
I-HDPE iwumsebenzi ongabizi wekhwalithi eyisibonelo. Iqinile kakhulu (ayinqamuki) ngenkathi ihlala ilula.
Ingakwazi ukumelana namazinga okushisa ahlukene kuye ngenqubo yayo yokukhiqiza (amazinga okushisa aphansi naphezulu: ukusuka ku--30 °C kuya ku-+100 °C) futhi ekugcineni imelana neningi lama-acids ancibilikayo angase abe nawo ngaphandle kokulimala. sag noma uguqule.
Ake sichaze ezinye zezinzuzo zayo:
I-HDPE: i-modular material kalula
Ngenxa yenqubo yokukhiqiza eyenza i-HDPE, i-HDPE imelana nokushisa okuphezulu kakhulu.
Phakathi nenqubo yokukhiqiza, lapho ifinyelela endaweni yokuncibilika, impahla ingase ibe nesimo esikhethekile futhi ivumelane nezidingo zabakhiqizi: noma ngabe ukudala amabhodlela emikhiqizo yasendlini noma ukuhlinzeka ngamapayipi amanzi azomelana namazinga okushisa aphezulu kakhulu.
Yingakho amapayipi e-PE amelana nokugqwala futhi azinzile ngokumelene nokusabela kwamakhemikhali amaningi.
I-HDPE imelana kakhulu futhi ayinamanzi
Enye inzuzo futhi hhayi okungenani, i-HDPE imelana kakhulu!
• I-HDPE imelana nokugqwala: ngakho-ke amapayipi athutha uketshezi olunamandla ngeke abe ngaphansi “kokugqwala”. Ngeke kube khona ushintsho ekujikeni kwamapayipi noma ikhwalithi yokufakwa ngokuhamba kwesikhathi.
• Ukumelana nenhlabathi enolaka: ngendlela efanayo, uma inhlabathi ine-asidi futhi ipayipi ligqitshiwe, ukwakheka kwalo ngeke kuguqulwe.
• I-HDPE futhi imelana ngokwedlulele nokushaqeka kwangaphandle okungenzeka: amandla adluliswa ngesikhathi sokushaqeka azobe esedala ukuwohloka kwengxenye kunokuwohloka kwayo. Ngokufanayo, ingozi yesando samanzi iyancipha kakhulu nge-HDPE
Amapayipi e-HDPE awangeneli: noma amanzi noma emoyeni futhi. Yizinga le-NF EN 1610 elivumela isibonelo ukuhlola ukucinana kweshubhu.
Okokugcina, uma kunombala omnyama, i-HDPE ingakwazi ukumelana ne-UV
I-HDPE ilula kodwa inamandla
Ezindaweni zamapayipi ezimboni, ukukhanya kwe-HDPE kuyinzuzo engenakuphikwa: amapayipi e-HDPE kulula ukuwahambisa, ukuwahambisa noma ukuwagcina.
Isibonelo, i-Polypropylene, imitha eyodwa yepayipi enobubanzi obungaphansi kuka-300 inesisindo:
• 5 kg ku-HDPE
• 66 kg ngensimbi ekhonjiwe
• 150 kg ukhonkolo
Eqinisweni, ukuphatha ngokujwayelekile, ukufakwa kwamapayipi e-HDPE kwenziwa lula futhi kudinga imishini elula.
Ipayipi le-HDPE nalo liyamelana, ngoba lihlala ngokuhamba kwesikhathi njengoba ukuphila kwalo kungaba yinde kakhulu (ikakhulukazi i-HDPE 100).
Lokhu kuphila kwepayipi kuzoncika ezintweni ezihlukahlukene: ubukhulu, ingcindezi yangaphakathi noma izinga lokushisa loketshezi ngaphakathi. Sikhuluma ngeminyaka engama-50 kuya kweyi-100 yokuphila isikhathi eside.
Ukungalungi kokusebenzisa i-polyethylene ephakeme kakhulu endaweni yokwakha
Ngokuphambene nalokho, imibi yokusebenzisa ipayipi le-HDPE nayo ikhona.
Singenza isibonelo:
• Izimo zokufaka ngesikhathi sokwakha kufanele zicophelele: ukuphatha kabi kungase kubulale
• akunakwenzeka ukusebenzisa i-gluing noma isikulufi ukuxhuma amapayipi amabili e-HDPE
• kunengozi yokwenziwa kwe-ovalization yamapayipi lapho kuhlanganiswa amapayipi amabili
• I-HDPE imunca umsindo ngaphezu kwezinye izinto (njengensimbi ekhonjiwe), okunzima ukuyizwa
• bese uqapha ukuvuza. Izinqubo ezibiza kakhulu bese zisetshenziswa ukuqapha inethiwekhi (izindlela ze-hydrophone)
• ukunwetshwa okushisayo kubalulekile nge-HDPE: ipayipi lingase lonakale kuye ngezinga lokushisa
• kubalulekile ukuhlonipha amazinga okushisa aphezulu okusebenza ngokwezimfanelo ze-HDPE
Isikhathi sokuthumela: Sep-11-2022