I-Polyethylene yoxinzelelo oluphezulu (i-HDPE): Iipropati zeMathiriyeli kunye nezicelo
I-High-Density Polyethylene (HDPE) yipolymer ye-thermoplastic esetyenziswa ngokubanzi ethandwa ngamashishini ahlukeneyo ngenxa yeempawu zayo ezibalaseleyo zomzimba kunye nokuzinza kweekhemikhali. Kule nqaku, siya kukhangela kwiipropati ze-HDPE, inkqubo yayo yokuvelisa kunye noluhlu olubanzi lwezicelo zokunceda ukuqonda kangcono le nto ebalulekileyo.
I. Inkcazo kunye neempawu zesakhiwo se-HDPE
Uxinaniso oluphezulu lwepolyethylene (i-HDPE) yipolymer ecacileyo eveliswe ngokongezwa kwepolymerisation ye-ethylene monomer. Inomgangatho ophezulu we-crystallinity kunye noxinzelelo oluphezulu (ngaphezulu kwe-0.940 g / cm³), ehambelana nenani eliphantsi lamaketane e-branched kwisakhiwo sayo se-molecular.Ilungiselelo elisondeleyo lamaketanga eemolekyuli ze-HDPE linika amandla agqwesileyo omatshini kunye nokuqina, ngelixa ligcina ukuguquguquka okuhle kunye ne-ductility.
II. IiPropati zePhysical and Chemical of HDPE
I-HDPE inoluhlu lwezinto ezibalaseleyo zomzimba kunye neekhemikhali ezenza ukuba zikhuphisane kakhulu kwizicelo zamashishini:

Ukumelana nemichiza: I-HDPE inozinzo oluphezulu phantsi kwesenzo seekhemikhali ezininzi, i-acids, i-alkalis kunye ne-solvents ye-organic, kwaye ngoko ifanelekile ukugcinwa kunye nokuthutha ulwelo olubi.
Amandla aphezulu kunye nokuchasana kwempembelelo: Ubunzima bayo obuphezulu bemolekyuli bunika i-HDPE amandla agqwesileyo okuqina kunye nokumelana nempembelelo, ngoko ihlala isetyenziselwa ukwenza imibhobho, izikhongozeli kunye nezinto zokupakisha.
Ukufunxwa kwamanzi asezantsi kunye nokugquma okulungileyo: I-HDPE inokufunxeka kwamanzi aphantsi kakhulu kunye neempawu ezigqwesileyo zokugquma umbane, iyenza ilungele ukushela intambo kunye nokugquma.
Ukumelana nobushushu: inokugcina uzinzo lweempawu zomzimba kuluhlu lobushushu obuphakathi -40 ℃ ukuya kuma-80 ℃.

Okwesithathu, inkqubo yokuvelisa i-polyethylene ephezulu
I-HDPE iveliswa ikakhulu ngeendlela ezintathu zepolymerisation: indlela yesigaba segesi, indlela yesisombululo kunye nendlela yokumiswa. Umahluko phakathi kwezi ndlela ulele kumahluko phakathi kwendlela yokusabela kunye neemeko zokusebenza:

Indlela yesigaba segesi: nge-polymerising igesi ye-ethylene ngokuthe ngqo phantsi kwesenzo se-catalyst, le ndlela inexabiso eliphantsi kunye nokusebenza okuphezulu, kwaye okwangoku yinkqubo esetyenziswa kakhulu.
Indlela yesisombululo: i-ethylene ichithwa kwi-solvent kunye ne-polymerised phantsi koxinzelelo oluphezulu kunye ne-catalyst, imveliso ebangelwayo inobunzima be-molecular kwaye ifanelekile ukulungiselela i-HDPE ephezulu yokusebenza.
Indlela yokunqunyanyiswa: i-polymerisation iqhutywa ngokumisa i-ethylene monoma kwindawo yolwelo, le ndlela inokulawula ngokuthe ngqo iimeko ze-polymerization kwaye ifanelekile ukuveliswa kobunzima be-molecular HDPE.

IV. Iindawo ezingundoqo zesicelo se-HDPE
Ngenxa yokusebenza kwayo okugqwesileyo, iHDPE isetyenziswa ngokubanzi kumashishini aliqela:

Izinto zokupakisha: I-HDPE isetyenziswa ngokuqhelekileyo xa kusenziwa izinto zokupakisha ezifana neebhotile, imigqomo, iikhonteyina kunye neefilimu, ingakumbi izikhongozeli zodidi lokutya ngenxa yezinto ezingenayo ityhefu, ezingenavumba kunye ne-corrosion.
Ulwakhiwo kunye neziseko ezingundoqo: I-HDPE isetyenziselwa ukwenziwa kwemibhobho (umz. imibhobho yamanzi nerhasi), apho ukumelana nokuhlwa kwayo, ukuxhathisa kwe-UV kunye nokufakelwa lula kuyenze yaduma kushishino lokwakha.
Umzi-mveliso wentambo: Iimpawu zokugquma kombane ze-HDPE ziyenza ilungele ukusetyenziswa njengemathiriyeli yokufaka ikheyibhile kunye nokugquma.
Impahla yabathengi: I-HDPE ikwasetyenziswa kakhulu ekuveliseni iimpahla zabathengi bemihla ngemihla ezifana neengxowa zeplastiki, izinto zokudlala, izikhongozeli zendlu kunye nefenitshala.

V. Imingeni yokusiNgqongileyo kunye noPhuhliso lweKamva lweHDPE
Ngaphandle koluhlu olubanzi lwezicelo, indalo engaboliyo ye-HDPE ibeka imingeni yokusingqongileyo. Ukuze kuncitshiswe impembelelo yenkunkuma yeplastiki kokusingqongileyo, zininzi iinkampani eziye zaqalisa ukufunda ukurisayikilishwa nokusetyenziswa kwakhona kweteknoloji ye-HDPE. Okwangoku, amazwe amaninzi kunye nemimandla iye yaseka iinkqubo zokuphinda zisetyenziswe ukuphinda zisetyenziselwe izixhobo zeHDPE ezisetyenzisiweyo kwiimveliso ezintsha ukukhuthaza ukusetyenziswa okuzinzileyo kwemithombo.
Kwixesha elizayo, imveliso ezinzileyo kunye nokusetyenziswa kwe-HDPE iya kuba yinto entsha ekugxilwe kuyo uphando njengoko ulwazi lokusingqongileyo lukhula kunye nokuqhubela phambili kweteknoloji. Amanyathelo abandakanya uphuhliso lwe-HDPE esekwe kwi-bio kunye neendlela eziphuculweyo zokuphinda zisetyenziswe ziya kunceda ukunciphisa impembelelo embi yokusingqongileyo kwesi sixhobo ngelixa igcina indawo yayo ebalulekileyo kwimarike.
Ukuqukumbela
I-polyethylene ephezulu yoxinaniso (HDPE) ibe yinxalenye ebalulekileyo yoshishino lwanamhlanje kunye nobomi ngenxa yeempawu zayo ezizodwa ze-physicochemical kunye noluhlu olubanzi lwezicelo. I-HDPE iya kuqhubeka idlala indima ebalulekileyo kwimarike kwixesha elizayo ngokuphucuka okuqhubekayo kwiinkqubo zemveliso kunye nokwandiswa kokusebenza kokusingqongileyo.
Olu hlalutyo olucwangcisiweyo lubonelela ngombono obanzi ngakumbi we-HDPE kwaye lunceda nokuphucula ukusebenza komxholo kwiinjini zokukhangela kunye nokuphucula iziphumo ze-SEO.