Yintoni na Polyethylene (PE) Ukwambathisa ngomgubo?

Polyethylene (PE) umgubo wokugquma bubuchule obukhethekileyo bokugqiba umphezulu obusetyenziswayo polyethylene thermoplastic i-resin kwifom yomgubo. Igalelwe nge-electrostatic spray deposition okanye ibhedi emanzi iinkqubo, le ngubo iphiliswa phantsi kobushushu ukuze yenze umaleko oqinileyo, okhuselayo. Ngelixa ingaqhelekanga kuneepoxy okanye i-polyester powder coatings, i-PE inikezela ngeenzuzo ezikhethekileyo kwizicelo ezithile, ixhaphake ukuchasana kweekhemikhali, ukuguquguquka, kunye neendleko ezifanelekileyo. Eli nqaku liphonononga ukubunjwa, iinkqubo zesicelo, iipropati, izibonelelo, imida, kunye nokusetyenziswa kwemizi-mveliso ye-PE powder coating.

Ukuqulunqwa kunye neentlobo

I-PE powder coatings ngokuyinhloko yenziwe nge-polyethylene resin, i-polymer eyaziwa ngokuguquguquka kwayo. I-Polyethylene ikhona ngeendlela ezahlukeneyo, kubandakanywa i-polyethylene ephantsi (i-LDPE) kunye ne-high-density polyethylene (HDPE), nganye inika iimpawu ezahlukileyo:

• LDPE: Ithambile, iguquguqukayo, kwaye inyibilika kumaqondo obushushu asezantsi (105-115 ° C), ilungele iingubo ezifuna ukunyameka.
• HDPE: Indawo enqabileyo kunye nephezulu yokunyibilika (130-180 ° C), ifanelekile kwizicelo ezinamandla.

Izongezo ezinjenge-UV stabilizers, ii-pigments, kunye nezixhasi zokuqukuqela zihlala zidityaniswa ukuphucula ukusebenza. Olu tshintsho luphucula ukuxhathisa kwemozulu, ukugcinwa kombala, kunye nokugudiswa kwesicelo, ukulungelelanisa ukugquma kwiimfuno ezithile.

Inkqubo yokuThengisa

I-PE powder iveliswa nge-melt compounding, apho i-resin kunye ne-additives ixutywe, ikhutshwe kwiipellets, kwaye iphantsi ibe ngamaqhekeza amancinci (30-70 microns). Oku kuqinisekisa ukuhamba kakuhle kunye neempawu ze-electrostatic. Ukuhanjiswa kobungakanani besuntswana lomgubo kubaluleke kakhulu kwisicelo esifanayo kunye nokwakheka kwefilimu.

Process application

1. Ukulungiselela umphezulu: I-Substrates icocwa nge-sandblasting okanye unyango lwekhemikhali ukususa ukungcola, ukuqinisekisa ukunamathela.
2. Iindlela zokufaka isicelo:
   • Electrostatic Spray: Amasuntswana atshajiweyo abambelela kwimigangatho ephantsi, evumela ukuchaneka, nokuba kugutyungelwe.
   • Ibhedi eFluidized: Amalungu ashushu afakwe kwibhedi engumgubo, anyibilike i-PE ekudibaneni kweengubo ezityebileyo.
3. Ku philisa: Amacandelo afudunyezwa kwii-ovens ngaphezu kwendawo yokunyibilika ye-PE (120-180 ° C), yenze ifilimu eqhubekayo xa ipholisa.

Properties

• Zemvelo: Ukuguquguquka okuphezulu, ukuchasana kwempembelelo, kunye ne-coefficient ephantsi ye-friction.
• umchiza: Ukumelana neeasidi, iialkali, kunye nezinyibilikisi, nangona zisesichengeni kwiihydrocarbons ezithile.
• Ukushisa: Ukuchasana nobushushu obuphantsi xa kuthelekiswa neengubo ze-thermoset, ukunciphisa ukusetyenziswa kwiindawo ezinobushushu obuphezulu.
• Electrical: Iimpawu ezigqwesileyo zokugquma, eziluncedo kumacandelo e-elektroniki.

eziluncedo

• IiNzuzo zokusiNgqongileyo: I-solvent-free, ikhupha ii-VOC ezingabalulekanga; I-overspray inokuphinda isetyenziswe.
• Isebenza kakuhle emalini: Iindleko eziphantsi zezinto kunye nokusetyenziswa kwamandla ngenxa yokushisa okuphakathi kokunyanga.
• ukuhlala ixesha elide: Ixhathisa umhlwa, ukufuma, kunye neekhemikhali, yandisa ubomi be-substrate.
• Ukuguquguquka kobuhle: Ifumaneka ngemibala eyahlukeneyo kunye nokugqitywa, nangona ingaphantsi kweyantlukwano kuneengubo zolwelo.

nezingeloncedo

• Uvakalelo lobushushu: Ithambisa kumaqondo obushushu aphakamileyo, ayifanelekanga ukusetyenziswa kobushushu obuphezulu.
• Imingeni yokuncamathela: Ifuna ukulungiswa okucokisekileyo komhlaba; iiprimers zinokuba yimfuneko.
• Ukuxhathisa: Ihlala ngaphantsi kwe-epoxy okanye i-polyurethane yokwambathisa kwiindawo ezinqabileyo. 

izicelo

Iingubo zomgubo ze-PE zigqwesileyo kumashishini abeka phambili ukuxhathisa imichiza kunye nokuguquguquka:

• Impahla zomthengi: Iiracks zokuhlamba izitya, izixhobo zebala lokudlala, kunye nefenitshala yangaphandle.
• amashishini: Iitanki zokugcina imichiza, iingobozi zocingo, kunye noomatshini bezolimo.
• Medical: Izixhobo zeLab kunye neendawo ezingenayo ityhefu, ezibulalayo.
• Automotive: Amalungu angaphantsi komzimba kunye neetanki zamafutha ezifuna ukhuseleko lomhlwa.

Ukuthelekisa nezinye iiCoatings

• I-Epoxy: Ukubambelela okuphezulu kunye nokuchasana kweekhemikhali kodwa brittle; I-PE inikeza ukuguquguquka okungcono.
• Polyester: Ukuchasana okugqwesileyo kwe-UV; I-PE igqwesile ekuchaseni impembelelo.
• lyu: Ukuxhatshazwa okuphezulu kwe-abrasion; I-PE yonga iindleko ngakumbi kwiindawo ezingabangiyo.

Impembelelo kokusiNgqongileyo

Iingubo zomgubo ze-PE zinciphisa unyawo lwendalo ngokusetyenziswa kwe-solvent-free kunye nokuphinda kusetyenziswe. Nangona kunjalo, ukuthembela kwi-petroleum-based PE kuphakamisa iinkxalabo zozinzo. Ukwenziwa kwezinto ezintsha kwi-PE esekwe kwibhayoloji nakwitekhnoloji yokurisayikilisha kujolise ekudambiseni le miba.

isiphelo

I-Polyethylene powder coating sisisombululo se-niche kodwa esixabisekileyo, esinika umxube wokuguquguquka, ukuxhathisa imichiza, kunye ne-eco-friendly. Ngelixa imida enjengobuntununtunu bobushushu bukhona, izibonelelo zayo ziyenza ibaluleke kakhulu kumacandelo afana nokulungiswa kokutya, ukhathalelo lwempilo, kunye nezolimo. Njengoko isayensi yezinto eziphathekayo zihambela phambili, iingubo ze-PE zinokunyuka zibe yimimandla emitsha, ukulinganisa ukusebenza kunye nokuzinza. Ukuqonda iipropathi zayo kunye nokusetyenziswa kuvumela amashishini ukuba asebenzise amandla e-PE ngokufanelekileyo, ukuqinisekisa ukhuseleko oluluqilima nolusebenzayo lomphezulu.

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