Filimu ya TPU vs Filimu ya PCU mu Magalimoto: Chifukwa Chake Kusankha Zinthu Zofunika Ndi Kofunika

Chiyambi

Mu mafilimu oteteza magalimoto, zilembo za zinthu nthawi zambiri zimamveka zofanana ngakhale pamene njira yogwiritsira ntchito ili yosiyana. TPU ndi PCU zonse zimakambidwa ngati machitidwe apamwamba a polima, koma mtengo wa chinthu chilichonse umadalira momwe amagwiritsidwira ntchito komaliza. TPU, makamaka aliphatic TPU, imayikidwa kwambiri kuti iteteze pamwamba chifukwa imaphatikiza kusinthasintha, kukana kwa UV, kukana kukanda, komanso kukhazikika kwa mitundu. Lubrizol imafotokoza mankhwala a aliphatic TPU ngati okhazikika pamitundu komanso oyenera kuteteza pamwamba, okhala ndi kukanda kwamphamvu komanso kukana kukanda.

PCU, m'chinenero cha msika chomwe chilipo masiku ano, nthawi zambiri imagwiritsidwa ntchito pofotokoza banja la filimu ya polyurethane yochokera ku polycarbonate m'malo mwa gulu lodzitetezera losiyana kwathunthu. Kafukufuku wa polyurethane yochokera ku polycarbonate soft segment-based akuwonetsa kuti machitidwewa amatha kupereka mphamvu zamphamvu zamakaniko komanso kukhazikika kwa hydrolytic, zomwe zimafotokoza chifukwa chake polycarbonate chemistry ndi yokongola pakugwiritsa ntchito ma polima ovuta. Funso mu filimu yamagalimoto silakuti PCU ingagwire ntchito, koma ngati ndiyo yoyenera kwambiri pazofunikira zowunikira, pamwamba, ndi kulimba kwa magalimoto enieni.

Kodi TPU ndi PCU Zimatanthauza Chiyani mu Kapangidwe ka Zinthu?

TPU ndi banja la polyurethane lopangidwa ndi thermoplastic. Kapangidwe kake kamadalira kapangidwe ka gawo lofewa ndi gawo lolimba, zomwe zikutanthauza kuti TPU ikhoza kusinthidwa kuti igwirizane bwino, kumveka bwino, kubwereranso, komanso kulimba. Ndemanga zamaphunziro zimafotokoza TPU ngati gulu lazinthu zomwe zimatha kukonzedwa bwino komanso kusinthasintha komanso kulimba, pomwe Lubrizol ikuwonetsa njira zambiri zolimba komanso kuyenerera kuteteza pamwamba.

PCU, ikagwiritsidwa ntchito muutoto wa galimotomsika, nthawi zambiri umagwirizana ndi mankhwala a polyurethane opangidwa ndi polycarbonate. PU yopangidwa ndi polycarbonate soft segment yanenedwa kuti ikuwonetsa bwino kwambiri makina komanso kukhazikika kwa hydrolytic, ndipo macrodiols a polycarbonate agwirizanitsidwa ndi kusintha kwa magawo ndi kachitidwe kogwira ntchito m'makina a polyurethane ogawidwa. Izi zikutanthauza kuti PCU ikhoza kukhala yodalirika mwaukadaulo. Nkhani yayikulu ndi yakuti kudalirika kwaukadaulo kokha sikupangitsa kuti ikhale nsanja yabwino kwambiri yotetezera magalimoto akunja.

Chifukwa Chake TPU Nthawi Zambiri Imagwirizana Bwino ndi Filimu Yamagalimoto

Filimu yamagalimoto imayesedwa ndi zinthu zambiri osati polymer chemistry. Iyenera kukhala yoyera, yolimba, yopulumuka kukhudzidwa ndi UV, komanso yokhazikika powonekera ikayikidwa. Lubrizol imaika aliphatic TPU ngati njira yabwino yotetezera pamwamba chifukwa imapereka kukana kwa UV, kukana kukanda ndi kukanda kwa nthawi yayitali, komanso kukhazikika kwa utoto pazinthu zowoneka bwino kapena zowala. Izi ndi zomwe ndizofunikira kwambiri mu filimu yoteteza utoto, filimu yoteteza galasi lamoto, ndi malo ena owonekera pamagalimoto.

TPU ilinso ndi mbiri yakale yogwiritsidwa ntchito m'mafilimu oteteza, kotero msika uli ndi chidziwitso chokhwima pankhani yopangira, kuyanjana ndi zokutira, komanso mawonekedwe osungidwa kwa nthawi yayitali. Mwachidule, izi zikutanthauza kuti mafilimu opangidwa ndi TPU nthawi zambiri amakhala osavuta kuwayika pamene kumveka bwino, kulimba, komanso khalidwe lapamwamba la pamwamba zonse ndizofunikira nthawi imodzi. Pakugwiritsa ntchito magalimoto, uwu ndi mwayi waukulu chifukwa chinthucho si pepala la polima lokha; ndi dongosolo lokhala ndi magawo lomwe liyenera kuwoneka bwino ndikugwira ntchito nthawi zonse pamalo enieni agalimoto.

Kumene PCU Ingakhale Yothandiza, ndi Chifukwa Chake Imakhalabe ndi Zosintha

PCU si yopanda phindu. Makina a PU okhala ndi polycarbonate amatha kupereka mphamvu zamphamvu zamakaniko ndi kukhazikika kwa hydrolytic, zomwe zimapangitsa kuti azioneka bwino m'malo omwe kukana chinyezi ndi mphamvu ya polima ndizofunikira kwambiri. Nthawi zina, izi zitha kukhala zothandiza pa ntchito zapadera kapena makanema opangidwa kumene kapangidwe ka mankhwala ndiye cholinga chachikulu.

Chosiyana ndichakuti filimu yamagalimoto siimangokonzedwa bwino poganizira kukhazikika kwa hydrolytic. Filimu yoyang'ana galimoto iyeneranso kusunga mawonekedwe osalowerera, kupewa kuwonongeka kwa pamwamba, ndikusunga mawonekedwe oyera pansi pa dzuwa ndikuyeretsa mobwerezabwereza. TPU imagwirizana mwachindunji ndi zofunikirazo. Mosiyana ndi izi, makina a polyurethane okhala ndi polycaprolactone, omwe ndi banja lina lofunika kwambiri la magawo ofewa munkhaniyi, amayamikiridwa chifukwa cha kusinthasintha komanso kuwonongeka kwachilengedwe, koma makhalidwe amenewo ndi ofunikira kwambiri pakugwiritsa ntchito zinthu zachilengedwe kapena zokhazikika kuposa kuteteza magalimoto akunja kwa nthawi yayitali. Mafilimu ena a polyurethane okhala ndi PCL anenedwanso kuti ali pachiwopsezo cha kuwonongeka kwa hydrolytic, zomwe zikuwonetsa kuti mphamvu ya chinthu m'munda umodzi sizipanga chokha chisankho chabwino kwambiri pa china.

Kuyerekeza Kogwirizana ndi Ntchito

Malinga ndi momwe ntchito ikuyendera, TPU nthawi zambiri imakhala chisankho chotetezeka kwambiri pa filimu yamagalimoto chifukwa imagwirizana bwino ndi magwiridwe antchito enieni omwe amafunikira pamagalimoto. Chida chimenecho chimaphatikizapo kukhazikika kwa UV, kukana kukanda, kumveka bwino kwa kuwala, kusinthasintha panthawi yoyika, komanso kusunga mawonekedwe kwa nthawi yayitali. Aliphatic TPU imagulitsidwa mwachindunji chifukwa cha zinthu izi zomwe zimagwiritsidwa ntchito poteteza pamwamba, ndichifukwa chake imawonedwa kwambiri ngati chinthu choyezera filimu yapamwamba yamagalimoto.

PCU ingakhalebe yothandiza pamene pulojekiti ikuyang'ana kwambiri zinthu zina za polima monga kukhazikika kwa hydrolytic kapena khalidwe la makina. Koma pa filimu yakunja yamagalimoto, funso lalikulu ndi magwiridwe antchito pagalasi kapena utoto, osati dzina la banja la polima. M'lingaliro limenelo, TPU nthawi zambiri imapambana chifukwa makampaniwa adapanga kale njira zatsopano zogwiritsira ntchito.

Mapeto

TPU ndi PCU zonse ndi zinthu zofunika kwambiri paukadaulo, koma sizili bwino mofanana pa ntchito zomwezo zamagalimoto. PCU ikhoza kupereka mawonekedwe amphamvu a makina ndi hydrolytic, komabe TPU, makamaka aliphatic TPU, imagwirizana kwambiri ndi zofunikira za filimu yoteteza magalimoto chifukwa imaphatikiza kumveka bwino, kukana kwa UV, kukana kukanda, komanso kukhazikika kwa utoto kwa nthawi yayitali. Kwa c iliyonse, PCU ikhoza kupereka mawonekedwe amphamvu a makina ndi hydrolytic, koma TPU, makamaka aliphatic TPU, imagwirizana kwambiri ndi zofunikira za filimu yoteteza magalimoto chifukwa imaphatikiza kumveka bwino, kukana kwa UV, kukana kukanda, komanso kukhazikika kwa utoto kwa nthawi yayitali.wopanga utoto wa zenera, chisankho champhamvu nthawi zambiri chimakhala chomwe chimagwira ntchito bwino kwambiri m'malo enieni, osati chomwe chimamveka chapamwamba kwambiri papepala lofotokozera. Poyerekeza, TPU ikadali nsanja yodziwika bwino yazinthu zapamwamba zamakanema.

FAQ

Kodi kusiyana kwakukulu pakati pa filimu ya TPU ndi filimu ya PCU ndi kotani?

TPU ndi banja lalikulu la polyurethane lopangidwa ndi thermoplastic, pomwe PCU nthawi zambiri imatanthauza dongosolo la polyurethane lopangidwa ndi polycarbonate lomwe limagwiritsidwa ntchito pamsika. TPU imakhazikika kwambiri pakuteteza pamwamba pa magalimoto.

Nchifukwa chiyani TPU nthawi zambiri imakondedwa mu filimu yamagalimoto?

Chifukwa aliphatic TPU imagwirizana kwambiri ndi kukana kwa UV, kukana kukanda, kukana kukanda, ndi kukhazikika kwa utoto, zomwe ndizofunikira kwambiri kuti chitetezo chakunja cha magalimoto chitetezeke.

Kodi PCU ili ndi ubwino uliwonse?

Inde. Makina a polyurethane okhala ndi polycarbonate amatha kuwonetsa mphamvu zamakina komanso kukhazikika kwa hydrolytic, kotero akhoza kukhala oyenera kugwiritsa ntchito zinazake zopangidwa ndiukadaulo kapena zapadera.

Kodi TPU yochokera ku polycaprolactone ndi yabwino pa filimu yamagalimoto?

Imatha kupereka kusinthasintha, koma kuwonongeka kwake ndi zinthu zina ndizofunikira kwambiri pakugwiritsa ntchito mankhwala kapena zokhazikika kuposa kuteteza kunja kwa galimoto kwa nthawi yayitali. Mafilimu ena a polyurethane okhala ndi PCL awonetsanso kukhudzidwa ndi kuwonongeka kwa hydrolytic.

Zolemba

Makhalidwe a Polyurethane Yofewa Yochokera ku Polycarbonate Yopangidwa ndi Thermoplastic Polyurethane

Ma Elastomer a Polycaprolactone Polyol-Based Thermoplastic Poly(ester ester) Omwe Akuwonetsa Kapangidwe Kabwino ka Makina

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