I-TPU yi-polyurethane thermoplastic elastomer, okuyi-copolymer eyi-Multiphase block ehlanganiswe ama-diisocyanates, ama-polyols, kanye nabasanda kubanjwa. Njengo-elastomer osebenza kakhulu, i-TPU inezinhlobonhlobo zemikhiqizo yokwakhiwa phansi futhi isetshenziswa kabanzi kwizidingo zansuku zonke, imishini yezemidlalo, amathoyizi, izinto zokuhlobisa, nezinye izinkambu, ama-hoses, amakhebuli, amadivaysi ezokwelapha, njll.
Njengamanje, abakhiqizi bezinto ezibalulekile ze-TPU Raw bafaka i-BASF, iCobestro, Lubrizol, Huntsman, Wanhua Chemical,Izinsiza ezintsha zeLinghua, njalo njalo. Ngokwakheka kanye nokunwetshwa kwamandla kwamabhizinisi asekhaya, imboni ye-TPU njengamanje iyancintisana kakhulu. Kodwa-ke, enkombeni yesicelo se-High-End, isancike ekungenisweni kokungenisa ngaphakathi, okuyindawo futhi yindawo yaseChina edinga ukufeza iziqubu ngaphakathi. Ake sixoxe ngamathemba emakethe wesikhathi esizayo wemikhiqizo ye-TPU.
1. I-Supercritical Foaming e-TPU
Ngo-2012, i-Adidas ne-BASF ngokuhlangene yathuthukisa i-Running Shoe Brand energybost, esebenzisa i-Foment TPU (igama lezohwebo) njengezinto zaphakathi nendawo. Ngenxa yokusetshenziswa kwe-polytheth tPU nolwandle ubulukhuni bama-80-85 njenge-substrate, uma kuqhathaniswa nabakwa-EVA Middoles, i-Fomed TPU MidSoles isengakhulisa ukugcwala okuhle nokuthamba ezindaweni ezingezansi kuka-0 ℃, okuthuthukayo kakhulu emakethe.
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I-TPU inokumelana nomthelela omuhle, kepha kwezinye izinhlelo, i-modulus ephezulu ye-modulus kanye nezinto ezinzima kakhulu ziyadingeka. Ukuguqulwa kwe-Glass Fiber Ukuguqulwa kuyindlela esetshenziswa kakhulu yokukhulisa i-modulus ye-eastic yezinto zokwakha. Ngokuguqulwa, izinto ezihlanganisiwe ze-thermoplastic zinezinzuzo eziningi ezinjenge-modulus ephezulu, ukumelana okuhle, ukumelana nokuvuselela okunamandla, ukumelana okuhle kokuvuselela, ukumelana nomthelela, ukuqina okuphansi kungatholakala.
I-BASF yethule ubuchwepheshe bokulungiselela i-modulus ephakeme ye-modulus fiberglass eqinisiwe isebenzisa imicu emifushane ye-Glass ePatent yayo. I-TPU enolukhuni osogwini u-83 yahlanganiswa yi-polytetrafluoroethyleneylene glycol (PTMeg, MN = 1000), MDI, kanye ne-1,4-butanediol (BDO) ene-1,3-propanediol njengezinto zokwakha. Le TPU yahlanganiswa nge-fiber yengilazi ngesilinganiso esiningi esingu-52: 48 ukuthola impahla eyinhlanganisela nge-modulus ye-eastic gpa ye-18.3 gpa kanye namandla ashubile angu-244 MPA.
Ngaphezu kwe-fiber ye-glass, kukhona nemibiko yemikhiqizo esebenzisa i-carbon fiber composite TPU / i-maezio carbosi fiber / i-tpu composite ibhodi ye-maezio fiber / TPU, ine-modulus ye-eastic ye-100gpa kanye ne-density engezansi.
3. I-Halogen free flame retardant tpu
I-TPU inamandla aphezulu, ubulukhuni obuphakeme, ukumelana kahle kwe-Wear yokuhlola nezinye izakhiwo, okwenza kube yizinto ezifaneleke kakhulu ze-sheath eziwumshini nezintambo. Kepha ezinkambeni zohlelo lokusebenza ezinjengeziteshi zokushaja, ukubuyiselwa kwemali okuphezulu kwelangabi kuyadingeka. Kunezindlela ezimbili zokuthuthukisa ukusebenza kwe-flame retardant ye-TPU. Eyokuqala i-Flame Retardant ukuguqulwa, okubandakanya ukwethula izinto ze-Flame Retardant ezifana nama-polyols noma ama-isocyal aqukethe i-phosphorus, i-nitrogen, nezinye izinto ekuhlanganiseni kwe-TPU ngokubopha amakhemikhali; Okwesibili ukuguqulwa kwe-Flame Retame Retardant, okubandakanya ukusebenzisa i-TPU njenge-substrate kanye nokungeza amalangabi ama-retaardants ngokuncibilikisa ukuxubana.
Ukuguqulwa okusebenzayo kungashintsha ukwakheka kwe-TPU, kepha lapho inani le-Flame Retardant Elikhulu likhulu, amandla we-TPU ayancipha, ukusebenza kwe-TPU kuyancipha, ukusebenza kwe-TPU kuyancipha, futhi ukwengeza inani elincane alikwazi ukufeza izinga le-flame retardant edingekayo. Njengamanje, awukho umkhiqizo ophakeme we-Flame Retardant ongahlangabezana naye osebenza ngeziteshi zokushaja.
Lowo owayengowokuqala kweBayer (Manje uKostron) wake wethula i-phosphorus ye-organic equkethe i-polyol (IHPO) esekelwe ku-phosphine oxide ePatent. I-polythelekile TPU eyenziwe esuka e-IHPO, PTMeG-1000, 4,4 '- MDI, kanye ne-BDO ekhombisa ukubuyisa kabusha kwelangabi kanye nezakhiwo zemishini. Inqubo ye-Extrusion ibushelelezi, futhi ingaphezulu lomkhiqizo bushelelezi.
Ukungeza amalangabi we-halogen-free flame RetacArants okwamanje kuyindlela yezobuchwepheshe esetshenziswa kakhulu yokulungiselela i-talogen-free flame retardant TPU. Ngokuvamile, i-phosphorus esekelwe, i-nitrogen isuselwa, i-silicon based, i-boron based flame retadadants ama-hydroxides ahlanganisiwe noma wensimbi asetshenziswa njengelangabi lezibungu. Ngenxa yokuvuselelwa kwemvelo kwe-TPU, inani le-flame retardant retardant lokugcwalisa elingaphezu kwama-30% livame ukudingeka ukwakha ungqimba oluzinzile lwe-flame retardant ngesikhathi sokuvutha. Kodwa-ke, lapho inani le-Flame Retardant elingeziwe likhulu, i-flame retardant ihlakazeka ngokungalingani ku-TPU substrate, futhi izakhiwo zemishini ze-flame retardant TPU azilungile, okubuye zikhawulele ukusetshenziswa kwayo kanye nokuphromotha.
I-basf's Patent yethula ubuchwepheshe be-FLAME-Retardant TPU, obukisa nge-melamine polyphosphate kanye ne-phosphorus equkethe okususelwa kwe-phosphiinic acid njenge-flame retardants nge-TPU ngesisindo esisesimweni se-topu. Kwatholakala ukuthi ukusebenza kwelangabi kwe-retardant kwathuthukiswa kakhulu ngenkathi kufeza amandla aphezulu aphezulu.
Ukuthuthukisa amandla ashukumisayo wezinto ezibonakalayo, i-basf's Patent yethula indlela yokulungiselela i-agent masterbatch equkethe ama-isocyanates. Ukungeza ama-2% alolu hlobo lwe-masterbatch ekwakhekeni okuhlangabezana nezidingo ze-ul94v-0 Flame Retardant kungakhuphula amandla ashukumisayo wezinto ezivela ku-35mpa kuye ku-40MPA ngenkathi kusebenza ukusebenza kwe-v-flame.
Ukuthuthukisa ukumelana nokuguga kokushisa kwe-flame-retardant tpu, ilungelo lobunikazi leInkampani entsha ye-LinghuaFuthi wethula indlela yokusebenzisa i-survate camera camera hydroxides njenge-flame retaardants. Ukuze uthuthukise ukumelana ne-hydrolysis ye-flame-retardant tpu,Inkampani entsha ye-LinghuaKwethulwa i-carbonate yensimbi ngesisekelo sokungeza i-melamine flame retardant kolunye uhlelo lwe-patent.
4. I-TPU yefilimu yokuvikela upende wezimoto
Ifilimu lokuvikela i-Car Picter liyifilimu evikelayo ehlukanisa umkhawulo wepende kusuka emoyeni ngemuva kokufakwa, kuvimbela imvula ye-acid, oxidation, ukuklwebheka, futhi ihlinzeka ngokuvikelwa okuhlala isikhathi eside kobuso bepende. Umsebenzi wayo oyinhloko ukuvikela indawo yokupenda imoto ngemuva kokufakwa. Ifilimu yokuvikela upende ngokuvamile iqukethe izingqimba ezintathu, ngokupholisa ukuzilapha ebusweni, ifilimu le-polymer phakathi, kanye nokunamathela okuzwela okuzwela kwengcindezelo engxenyeni engezansi. I-TPU ingenye yezinto eziphambili zokulungiselela amafilimu aphakathi we-polymer.
Izidingo zokusebenza ze-TPU ezisetshenziselwe i-Paint Protect film zimi ngokulandelayo: Ukumelana nokukhanya okuphezulu, ukuvumelanisa okushisa okuphezulu, ama-acleile, i-accongation> 400%, kanye nolwandle ubulukhuni buka-87-93; Ukusebenza okubaluleke kakhulu ukumelana nesimo sezulu, okubandakanya ukumelana nokuguga kwe-UV, ukucekelwa phansi kwe-oxidative oxidative, kanye ne-hydrolysis.
Imikhiqizo evuthiwe njengamanje iyi-Aliphatic TPU elungiselelwe kusuka ku-DICYClohexyl diocyanate (h12mdi) ne-polycapropactone diol njengezinto zokwakha. I-TPU evamile ebonakalayo iphenduka i-Yellow Ngemuva kosuku olulodwa lwe-UV irradiation, kuyilapho i-Aliphatic TPU esetshenziselwa ifilimu yokugoqa imoto ingagcina i-coefficing yayo ephuzi ngaphandle kwezimo ezifanayo.
I-Poly (ε - I-capactonene) i-TPU inokusebenza okulinganiselayo ngokuqhathaniswa ne-polyther ne-polyester tpu. Ngakolunye uhlangothi, ingabonisa ukumelana kahle kwezinyembezi ze-polyester tpu ejwayelekile, ngenkathi iphinde ikhombise ukungcola okuphansi okuphelele kokuguquguquka okuphezulu nokusebenza okuphezulu kwe-polytheth tPU, ngaleyo ndlela kusetshenziswe kabanzi emakethe.
Ngenxa yezidingo ezihlukile zokusebenza kwezindleko zomkhiqizo ngemuva kokuhlukaniswa kwemakethe, ngokuthuthukiswa kobuchwepheshe be-surfeise ye-fortealive, kukhona ithuba le-polyther noma elijwayelekile i-polyster h12mdi aliphatic TPU okufanele isetshenziswe kumafilimu okuvikela ukupenda ngokuzayo.
5. I-Biobased TPU
Indlela Ejwayelekile Yokulungiselela i-TPU esekelwe eBio ukwethula ama-monomers akwenzelwe ama-bio noma phakathi kwenqubo ye-polymerization, efana ne-asocyals esekelwe eBio (i-PDI, i-Asocyals are-strate aret emakethe, ngenkathi ama-polsols e-biobased avamisile.
Ngokuya nge-asocyanates esekelwe eBio, ekuqaleni kuka-2000, i-BASF, i-Cocestro, kanti abanye batshale umzamo omkhulu ocwaningweni lwe-PDI, kanti iqembu lokuqala lemikhiqizo ye-PDI lafakwa emakethe ngo-2015-2016. I-Wanhua Chemical Chemical ithuthukise imikhiqizo ye-TPU esekelwe engu-100% esebenzisa i-PDI esekelwe eBio eyenziwe ngesiqu sommbila.
Ngokwe-BIO esekelwe ama-polyols, kufaka phakathi i-polytetraflufluorool esekelwe eBio esekelwe ku-1,4-butanediol (BDO), i-BIO esekelwe ku-1,3-propanediol (i-PDO), ama-polyester polylols, njll.
Njengamanje, abakhiqizi abaningi be-TPU bathule i-bio based TPU, ukusebenza kwawo kuqhathaniswa ne-TPU yendabuko ye-petrochemical based. Umehluko omkhulu phakathi kwalezi zinto ze-bio ezisuselwa ku-bio zilele ezingeni lokuqukethwe okusekelwe kwe-bio, ngokuvamile kusuka ku-30% kuya ku-40%, nabanye bathola amazinga aphezulu. Uma kuqhathaniswa ne-TPU yendabuko ye-Petrochemical based, i-Bio based TPU inezinzuzo ezinjengokunciphisa ukuphuma kwekhabhoni, ukuvuselelwa okuqhubekayo kwezinto zokwakha, ukukhiqizwa okuluhlaza kanye nokulondolozwa kwezinsizakusebenza. I-BASF, iCobestro, Lubrizol, Chemical Chemical, futhiIzinsiza ezintsha zeLinghuaBethule imikhiqizo yabo ye-TPU esekelwe e-bio, futhi ukuncishiswa kwekhabhoni nokusimama nakho kuyizinkomba ezibalulekile ze-TPU Development ngokuzayo.
Isikhathi sePosi: Aug-09-2024