Ifilimu yeTPU vs iPCU kwiZicelo zeeMoto: Kutheni Ukukhetha Izinto Kubalulekile

Intshayelelo

Kwiifilimu zokukhusela iimoto, iilebhile zezinto zidla ngokuvakala zifana nangona indlela yokusebenzisa yahlukile. I-TPU kunye ne-PCU zombini zixutyushwa njengeenkqubo ze-polymer ezisebenzayo kakhulu, kodwa ixabiso lezinto nganye lixhomekeke kwimeko yokugqibela yokusetyenziswa. I-TPU, ngakumbi i-aliphatic TPU, ibekwe ngokubanzi ekukhuseleni umphezulu kuba idibanisa ukuguquguquka, ukumelana ne-UV, ukumelana nokukrweleka, kunye nokuzinza kombala. I-Lubrizol ichaza iikhemikhali ze-aliphatic TPU njengezo zizinzileyo kumbala kwaye zifanelekile ekukhuseleni umphezulu, ezinokumelana nokukrweleka okunamandla kunye nokukrweleka.

I-PCU, ngolwimi lwangoku lwemarike, idla ngokusetyenziselwa ukuchaza usapho lwefilimu ye-polyurethane esekwe kwi-polycarbonate endaweni yodidi lokhuseleko olwahlukileyo ngokupheleleyo. Uphando kwi-polyurethane esekwe kwi-polycarbonate soft segment-based lubonisa ukuba ezi nkqubo zinokubonelela ngeempawu eziqinileyo zoomatshini kunye nozinzo lwe-hydrolytic, nto leyo echaza isizathu sokuba i-polycarbonate chemistry inomtsalane kwizicelo ze-polymer ezifunwayo. Umbuzo kwifilimu yeemoto awukokuba i-PCU ingasebenza na, kodwa kukuba ingaba ifanelekile na kwiimfuno ze-optical, umphezulu, kunye nokuqina kokusetyenziswa kwesithuthi sokwenyani.

Ithetha ukuthini iTPU kunye nePCU kuyilo lwezinto ezibonakalayo

I-TPU lusapho lwe-polyurethane olune-thermoplastic ehlukeneyo. Iimpawu zayo zixhomekeke kwikhemistri yecandelo elithambileyo kunye necandelo eliqinileyo, oko kuthetha ukuba i-TPU inokulungiswa ukuze ilungelelanise ukuguquguquka, ukucaca, ukubuyela umva, kunye nokuqina. Uphononongo lwezemfundo luchaza i-TPU njengodidi lwezinto ezibonakalayo olunokusebenza okuqinileyo kunye nokulinganisela okubonakalayo kokuguquguquka kunye nokuqina, ngelixa i-Lubrizol igxininisa ukhetho olubanzi lobunzima kunye nokufaneleka kokukhusela umphezulu.

I-PCU, xa isetyenziswa kwi-imibala yemotoImarike, ngokubanzi inxulunyaniswa nekhemistri ye-polyurethane esekwe kwi-polycarbonate. I-PU esekwe kwi-polycarbonate soft segment-based ibikwe ukuba ibonisa ukusebenza kakuhle koomatshini kunye nokuzinza kwe-hydrolytic, kwaye ii-macrodiols ze-polycarbonate ziye zanxulunyaniswa nokuphuculwa kokungafani kwesigaba kunye nokuziphatha kokuxinana kwiinkqubo ze-polyurethane ezihlukaniswe. Oko kuthetha ukuba i-PCU inokuthenjwa ngobuchwephesha. Ingxaki ephambili kukuba ukuthembeka kobuchwephesha kukodwa akuyenzi ibe yeyona qonga lefilimu libalaseleyo lokukhusela iimoto zangaphandle.

Kutheni i-TPU iqhele ukulingana nefilimu yeemoto ngcono

Ifilimu yeemoto igwetywa ngaphezu kwe-polymer chemistry. Kufuneka ihlale icacile, imelane nokukrwela, iphile kwi-UV exposure, kwaye ihlale izinzile emva kokufakwa. I-Lubrizol ibeka i-aliphatic TPU njengokhetho oluqinileyo lokukhusela umphezulu kuba inika ukumelana ne-UV, ukumelana nokukrwela ixesha elide kunye nokukrwela, kunye nokuzinza kombala kwiindawo ezicacileyo okanye ezikhanyayo. Ezo ziimpawu ezibalulekileyo kwifilimu yokukhusela ipeyinti, ifilimu yokukhusela i-windshield, kunye nezinye iindawo zemoto ezibonakalayo.

I-TPU ikwanomlando obanzi wokusetyenziswa kwiifilimu ezikhuselayo, ngoko ke imakethi inolwazi oluvuthiweyo malunga nokwakheka, ukuhambelana kwengubo, kunye nokugcinwa kwembonakalo ixesha elide. Enyanisweni, oko kuthetha ukuba iifilimu ezisekelwe kwi-TPU zihlala zilula ukuzibeka xa ukucaca, ukuqina, kunye nomgangatho womphezulu ophezulu zonke zibalulekile ngaxeshanye. Ukusetyenziswa kweemoto, le yinzuzo enkulu kuba imveliso ayisiyo nje i-polymer sheet; yinkqubo enamaleko ekufuneka ibonakale ilungile kwaye isebenze rhoqo kwiindawo zokwenyani zesithuthi.

Apho i-PCU inokuba luncedo khona, kunye nesizathu sokuba isene-trade-offs

I-PCU ayisiyonto ingenamsebenzi. Iinkqubo ze-PU ezisekwe kwi-polycarbonate zinokubonelela ngeempawu eziqinileyo zoomatshini kunye nozinzo lwe-hydrolytic, nto leyo ezenza zibe nomtsalane kwiindawo apho ukumelana nokufuma kunye namandla e-polymer zizinto ezibalulekileyo ezixhalabisayo. Kwezinye iimeko, oku kunokuba luncedo kwizicelo ezikhethekileyo okanye kwiifilimu ezenziwe ngobunjineli apho ulwakhiwo lweekhemikhali luphambili.

Ingxaki kukuba ifilimu yeemoto ayilungiswanga kuphela ngokuzinza kwe-hydrolytic. Ifilimu ejonge kwimoto kufuneka igcine ukungathathi cala kwe-optical, imelane nokuguguleka komphezulu, kwaye igcine iprofayili ebonakalayo ecocekileyo phantsi kwelanga kunye nokucoca okuphindaphindiweyo. I-TPU ihambelana ngokuthe ngqo nezo mfuno. Ngokwahlukileyo koko, iinkqubo ze-polyurethane ezisekwe kwi-polycaprolactone, ezizezinye iintsapho ezifanelekileyo ze-soft-segment kule ngxoxo, zixatyiswa ngenxa yokuguquguquka kunye nokubola kwezinto eziphilayo, kodwa ezo mpawu zinomtsalane ngakumbi kwizicelo ze-biomedical okanye zezinto ezizinzileyo kunakwiimoto ezihlala ixesha elide. Ezinye iifilimu ze-polyurethane ezisekwe kwi-PCL nazo zibikwe njengezisengozini yokuwohloka kwe-hydrolytic, nto leyo egxininisa ukuba amandla ezinto kwenye indawo awazenzi ngokuzenzekelayo ukuba zibe lolona khetho lufanelekileyo kwenye.

Uthelekiso oluSekelwe kwiSicelo

Ngokwembono yesicelo, i-TPU idla ngokuba lolona khetho lukhuselekileyo lwefilimu yeemoto kuba ihambelana ngcono ne-stack yokusebenza yokwenyani efunekayo kwizithuthi. Eso stack siquka uzinzo lwe-UV, ukumelana nokukrwela, ukucaca kokukhanya, ukuguquguquka ngexesha lokufakwa, kunye nokugcinwa kwembonakalo ixesha elide. I-Aliphatic TPU ithengiswa ngokucacileyo ngezi mpawu ekusebenziseni ukhuseleko lomphezulu, yiyo loo nto iphathwa ngokubanzi njengezinto ezisemgangathweni zefilimu yeemoto eziphambili.

I-PCU isenokuba luncedo xa iprojekthi ibeka phambili iipropati ezithile zezinga le-polymer ezifana nokuzinza kwe-hydrolytic okanye ukuziphatha okuthile koomatshini. Kodwa kwifilimu yangaphandle yeemoto, umbuzo ophambili kukusebenza okusebenzayo kwiglasi okanye ipeyinti, kungekhona igama losapho lwe-polymer eluhlaza. Ngaloo ndlela, i-TPU idla ngokuphumelela kuba ishishini sele lakha izisombululo ezivuthiweyo nezilungele ukusetyenziswa kuyo.

Isiphelo

I-TPU kunye ne-PCU zombini ziinkqubo zezinto eziluncedo kwezobuchwepheshe, kodwa azilungiselelwanga ngokulinganayo imisebenzi efanayo yeemoto. I-PCU inokubonelela ngeempawu ezinamandla zoomatshini kunye ne-hydrolytic, kodwa i-TPU, ngakumbi i-aliphatic TPU, ihambelana kakhulu neemfuno zefilimu yokukhusela iimoto kuba idibanisa ukucaca, ukumelana ne-UV, ukumelana nokukrwela, kunye nokuzinza kombala ixesha elide.umenzi we-ar window tint, ukhetho oluqinileyo ludla ngokuba lolo lusebenza kakuhle kwindawo yokwenyani, kungekhona olo luvakala luphucukile ngakumbi kwiphepha leenkcukacha. Kolu thelekiso, iTPU ihlala iqonga eliqinisekisiweyo leemveliso zefilimu zeprimiyamu.

FAQ

Yintoni umahluko omkhulu phakathi kwefilimu yeTPU kunye nefilimu yePCU?

I-TPU lusapho olubanzi lwe-polyurethane olusebenzisa i-thermoplastic, ngelixa i-PCU idla ngokubhekisa kwinkqubo ye-polyurethane esekelwe kwi-polycarbonate esetyenziswa kwimarike. I-TPU izinzile ngakumbi ekukhuseleni umphezulu weemoto.

Kutheni i-TPU idla ngokukhethwa kwifilimu yeemoto?

Kuba i-TPU ye-aliphatic inxulunyaniswa kakhulu nokuxhathisa i-UV, ukuxhathisa ukurhawuzelelwa, ukuxhathisa ukukrwela, kunye nokuzinza kombala, ezizezona mfuno ziphambili zokukhusela iimoto zangaphandle.

Ngaba i-PCU inazo naziphi na izibonelelo?

Ewe. Iinkqubo ze-polyurethane ezisekwe kwi-polycarbonate zinokubonisa iimpawu eziqinileyo zoomatshini kunye nozinzo lwe-hydrolytic, ngoko ke zinokufaneleka kwiizicelo ezithile zobunjineli okanye ezizodwa.

Ngaba i-TPU esekelwe kwi-polycaprolactone ilungile kwifilimu yeemoto?

Ingabonelela ngokuguquguquka, kodwa ukubola kwayo kunye nezinye iimpawu zezinto ezibonakalayo zibaluleke ngakumbi kwizicelo zonyango okanye ezizinzileyo kunokukhusela ngaphandle kweemoto ixesha elide. Ezinye iifilimu ze-polyurethane ezisekelwe kwi-PCL nazo zibonakalise ubuthathaka bokubola kwe-hydrolytic.

Iireferensi

Iimpawu zePolycarbonate Soft Segment-Based Thermoplastic Polyurethane

Ii-Elastomers zePolycaprolactone ezisekelwe kwiPolyol ezizinzileyo ezibonisa iipropati zoomatshini eziphezulu

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