Ukuchazwa kwe-HDPE
I-HDPE isichazamazwi esivame ukusetshenziselwa ukubhekisa ku-polyethylene ephezulu. Siphinde sikhulume ngePE, LDPE noma amapuleti we-PE-HD. I-PolyethYlene iyinto ebonakalayo ye-thermoplastic eyingxenye yomndeni wamapulasitiki.
Kunezinhlobo ezahlukene ze-polyethylenes. Lokhu kwehluka kuchazwa yinqubo yokukhiqiza ezokuhluka. Sikhuluma nge-polyethylene:
• Ubuningi obuphansi (LDPE)
• Ubuningi obuphezulu (HDPE)
• I-Medium Density (PEMD).
Ngaphezu kwalokho, kunezinye izinhlobo ze-polyethylene: chlorinated (PE-C), ngesisindo esiphakeme kakhulu.
Zonke lezi zifinyezo nezinhlobo zezinto zokwakha zilinganiswa ngaphansi kwe-aegis ye-NF EN ISO 1043-1
I-HDPE ingumphumela wenqubo ephezulu ye-density: I-polyethylene ephezulu. Ngalo, singenza amathoyizi wezingane, izikhwama zepulasitiki, kanye namapayipi asetshenziselwa ukuthutha amanzi!
Ipulasitiki le-HDPE likhiqizwa kusuka ku-petroleum synthesis. Ngokwenziwa kwayo, i-HDPE ifaka izinyathelo ezihlukile:
• I-distillation
• Ukuqhekeka komoya
• I-Polymerization
• Ukugogobala
Ngemuva kwalolu shintsho, umkhiqizo ungoMily White White, Translucent. Kulula kakhulu ukwakheka noma umbala.
I-HDPE isebenzisa amacala embonini
Ngenxa yezimfanelo nezinzuzo zayo, i-HDPE isetshenziswa ezindaweni eziningi zezimboni.
Kutholakala yonke indawo esikuzungezile empilweni yethu yansuku zonke. Nazi ezinye izibonelo:
Ukwenziwa kwamabhodlela epulasitiki kanye nokupakishwa kwepulasitiki
I-HDPE yaziwa kahle embonini yokudla, ikakhulukazi yokwenziwa kwamabhodlela epulasitiki.
Kuyisitsha esihle kakhulu sokudla noma iziphuzo noma ukudala ama-bottle cap. Akunangozi yokuphuka njengoba kungaba khona ngengilazi.
Ngaphezu kwalokho, ukupakishwa kwepulasitiki ye-HDPE kunenzuzo enkulu yokuphinda ube kabusha.
Ngaphesheya kwemboni yokudla, i-HDPE itholakala kwezinye izingxenye zemboni ngokuvamile:
• Ukwenza amathoyizi,
• Ukuvikelwa kwepulasitiki kwamabhukwana,
• Amabhokisi okugcina
• Ekwenziweni kwezikebhe-kayaks
• Ukudalwa kwama-beacon buoys
• nabanye abaningi!
I-HDPE embonini yamakhemikhali nezemithi
Izimboni zamakhemikhali nezemithi zisebenzisa i-HDPE ngoba inezakhiwo ezingamelana namakhemikhali. Kuthiwa i-Menert yamakhemikhali.
Ngakho-ke, kuzosebenza njengesitsha:
• kuma-shampoos
• Imikhiqizo yasendlini ezosetshenziswa ngokunakekelwa
• Ukugeza
• Amafutha enjini
Kusetshenziselwa futhi ukudala amabhodlela emithi.
Ngaphezu kwalokho, sibona ukuthi amabhodlela aklanyelwe e-polypropylene anamandla ngokwengeziwe ekulondolozeni kwawo imikhiqizo lapho enemibala noma enemibala.
I-HDPE yemboni yezokwakha kanye nokuziphatha koketshezi
Ekugcineni, enye yezindawo ezisebenzisa kakhulu i-HDPE iyinkambu yepayipi kanye nomkhakha wezokwakha ngokwengeziwe.
Ochwepheshe bezokuthuthwa kwendle noma bokwakha bakusebenzisa ukwakha nokufaka amapayipi azosetshenziselwa ukwenza uketshezi (amanzi, igesi).
Kusukela ngawo-1950s, ipayipi le-HDPE selithathe indawo yamapayipi okuhola. I-Holy Piping yavinjelwa kancane kancane ngenxa yobuthi bayo bokuphuza amanzi.
Ipayipi eliphakeme le-polyethylene (HDPE), ngakolunye uhlangothi, ipayipi elenza ukuthi liqinisekise ukusatshalaliswa kwamanzi okuphuza: kungenye yamapayipi asetshenziswa kakhulu kulo msebenzi wokuphuza amanzi.
I-HDPE inikeza inzuzo yokumelana nokuhluka kokushisa kwamanzi kupayipi, ngokungafani ne-LDPE (incazelo ephansi polyethylene). Ukusabalalisa amanzi ashisayo ngo-60 °, siyothanda ukuguqukela kumapayipi we-pert (polyethylene amelana nokushisa).
I-HDPE futhi yenza ukuthi kwenzeke ukuthi kwenzeke igesi nge-tube, ukudala ama-ducts noma izinto zomoya omncane esakhiweni.
Izinzuzo nobubi bokusebenzisa i-HDPE kumasayithi wezimboni
Kungani i-HDPE isetshenziswa kalula kumasayithi wezimboni? Futhi kunalokho, kungaba yini amaphuzu awo amabi?
Izinzuzo ze-HDPE njengezinto ezibonakalayo
I-HDPE iyinto enezinto ezinezinto ezizuzisayo ezivumela ukusetshenziswa kwayo embonini noma ekuziphatheni koketshezi epayipi.
I-HDPE iyinto engabizi kakhulu yekhwalithi eyisibonelo. Iqinile ikakhulukazi (ingafinyeleleki) ngenkathi ilula ukukhanya.
Ingamelana namazinga okushisa ahlukahlukene ngokuya ngenqubo yayo yokukhiqiza (amazinga okushisa aphansi futhi aphezulu: ukusuka ku-30 ° C kuya ku- +100 ° C) futhi ekugcineni akumelani nama-solvent acids angakuqukethe ngaphandle konakaliswa. sag noma uguqule.
Ake sifundele ezinye zezinzuzo zayo:
I-HDPE: I-Moval etatile
Ngenxa yenqubo yokukhiqiza eyakha i-HDPE, i-HDPE imelana namazinga okushisa aphezulu kakhulu.
Ngesikhathi sokukhiqiza, lapho ifinyelela endaweni yokuncibilika, impahla ingathatha isimo esikhethekile futhi ivumelane nezidingo zabakhiqizi: noma ngabe ukudala amabhodlela emikhiqizo yasendlini noma amapayipi amanzi azomelana namazinga okushisa aphezulu.
Kungaleso sizathu-ke amapayipi we-PE amelana nokugqwala futhi azinze ngokumelene nokusabela kwamakhemikhali amaningi.
I-HDPE imelana kakhulu futhi ingenamanzi
Enye inzuzo hhayi okuncane, i-HDPE imelana kakhulu!
• I-HDPE iphikisana nokugqwala: Ngakho-ke amapayipi azothutha uketshezi olunolaka ngeke anciphise "ekugculweni". Ngeke kube khona ushintsho ebukhali bepayipi noma ikhwalithi yokufakwa ngokuhamba kwesikhathi.
• Ukumelana nenhlabathi enolaka: Ngendlela efanayo, uma inhlabathi i-acid nepayipi selingcwatshwe, ukwakheka kwalo kungenzeka kungaguqulwa
• I-HDPE ibuye imelana kakhulu nokushaqeka kwangaphandle okungenzeka: amandla adluliselwa ngesikhathi sokushaqeka azokwenza lokho kudalulwa kwengxenye kunokuwohloka kwawo. Ngokufanayo, ubungozi besando samanzi buhliswa kakhulu nge-HDPE
Amapayipi we-HDPE awanakufinyeleleka: noma angena emanzini noma umoya. Yi-NF EN 1610 Standard evumela isibonelo ukuvivinya ukuqina kweshubhu.
Ekugcineni, lapho umbala omnyama, i-HDPE ingamelana ne-UV
I-HDPE ilula kepha iqinile
Ngezindawo ezinamapayipi ezimboni, ukukhanya kwe-HDPE kuyinzuzo engenakuphikwa: amapayipi e-HDPE kulula ukuhambisa, ahambe noma agcine.
Isibonelo, i-polypropylene, imitha eyodwa yepayipi elinobubanzi obungaphansi kuka-300:
• I-5 kg ku-HDPE
• Ama-66 kg ku-cast iron
• Ukhonkolo we-150 kg
Eqinisweni, ukuphatha ngokujwayelekile, ukufakwa kwamapayipi we-HDPE kwenziwa lula futhi kudinga imishini elula.
Ipayipi le-HDPE futhi liyamelana, ngoba lihlala ngokuhamba kwesikhathi njengoba isikhathi salo sokuphila singaba isikhathi eside kakhulu (ikakhulukazi i-HDPE 100).
Lesi sikhathi sokuphila sepayipi sizoncika ezintweni ezahlukahlukene: usayizi, ingcindezi yangaphakathi noma lokushisa koketshezi ngaphakathi. Sikhuluma iminyaka engama-50 kuye kwayi-100 yokuphila isikhathi eside.
Ububi bokusebenzisa i-polyethylene ephezulu ye-polyethylene entweni yokwakha
Ngokuphambene nalokho, ukungahambi kahle kokusebenzisa ipayipi le-HDPE nakho kukhona.
Singaba isibonelo:
• Izimo zokufaka ngesikhathi sendawo yokwakha kumele zibe ngokucophelela: Ukuphathwa kabi kungabulala
• Akunakwenzeka ukusebenzisa i-gluing noma i-screw ukuxhuma amapayipi amabili we-HDPE
• Kunobungozi bokuma kwamapayipi lapho ujoyina amapayipi amabili
• I-HDPE imunca izwakala ngaphezu kwezinye izinto (ezifana ne-Iron Iron), okuyinkimbinkimbi kakhulu ukuthola
• Futhi ngenxa yalokho qapha ukuvuza. Izinqubo ezibiza kakhulu zisetshenziselwa ukuqapha inethiwekhi (izindlela ze-hydrophone)
• Ukunwetshwa kwe-thermal kubalulekile nge-HDPE: ipayipi lingakhubazeka ngokuya ngamazinga okushisa
• Kubalulekile ukuhlonipha amazinga okushisa aphezulu okusebenza ngokuya ngezimfanelo ze-HDPE
Isikhathi sePosi: Sep-11-2022