Yintoni i-thermoplastic polytomerthane elastomer?

Yintoni i-thermoplastic polytomerthane elastomer?

I-Polyreurthane Elastomer yintlobo ngeentlobo zezixhobo zePolyntthane (ezinye iintlobo zibhekisa kwi-Polyurethane Fom, i-Polytourthane Dolytoment ye-PolytorThane ye-elastomer, abantu bebukade bebhekisa kuyo njenge-TPU .

I-TPU luhlobo lwePolytorthane Elastomer enokuthi ifakwe ngokufudumeza kwaye ichithwe nge-solvent. Xa kuthelekiswa ne-CPU kunye ne-MPU, i-TPU inemichiza encinci okanye ingekho mkhamitha kwimo yayo yekhemikhali. I-molecular ye-molecular i-ox ngamacala aphezulu, kodwa kukho inani elithile lokunxibelelanisa ngokwasemzimbeni. Le yi-thermoplastic polytorthane elastomer ephawuleka kakhulu kwisakhiwo.

Ulwakhiwo kunye nokuhlelwa kwe-TPU

I-Thermoplastic Polyreurthane Elastomer yi-Tood Poby Polymer. I-polymer polyol (ester okanye i-polyet, ubunzima be-moleuty, kwi-1000 ~ 6000) kunye nobunzima obukhulu beemolekyuli, ezibizwa ngokuba yi-chain ende; I-B imele i-diol ene-2-12 i-chain ye-carbon yekharbon, ebizwa ngokuba yi-chain emfutshane.

Kwimo ye-Thermoplastic Polyreurthane Elastomer, icandelo A libizwa ngokuba liQonga elithambileyo, elineempawu zokuguquguquka kunye nokuthamba, ukwenza i-TPU inolwaneliseko; I-Urethane Chain eveliswe yindlela yokuphendula phakathi kwe-B Digiment kunye ne-I-I-I-I-I-I-I-EGECE ibizwa ngokuba yindawo enzima, eneepropathi ezingqongqo kunye nezinzima. Ngokuhlengahlengiswa komyinge wecandelo le-A kunye ne-B, iimveliso ze-TPU ezineepropathi ezahlukeneyo zomzimba kunye noomatshini zenziwa.

Ngokwesakhiwo esithambileyo sesahlulo, sinokwahlulwa kuhlobo lwe-polyester, uhlobo lwePolyeether, kunye nohlobo lwe-butadiene, enamaqela anentlonelo, iqela le-ERE, okanye iqela le-ERE, okanye iqela le-ERE. Ngokwendlela enzima yesahluko, inokwahlulwa ibe luhlobo lwe-urethane kunye nohlobo lwe-urethane urea, efumaneka ngokulandelelana kwi-Ethylene Glycone Chain Ukwahlulahlulwahlulwahlulwahlulwahlulwahlulwa kwahlulwahlulwahlulwa ngohlobo lwePolyester kunye nohlobo lwePolyet.

Zithini izinto ezingafunekiyo ze-tpu synthesis?

(1) I-Polymer Diol

I-Macromoralecular Diol ene-molecular isusela kwi-500 ukuya kwi-4000 kunye namaqela angama-50 ama-50% ukuya kwi-8% ukuya kwi-8% kwi-TPU Elastomer, idlala indima ethatha isigqibo kwi-TPU.

I-Polymer Diol ilungele i-TPU Elastoment inokwahlulwa ibe yi-polyerter nase polyet: i-polyeester ibandakanya i-polytetramethylene adipic vlyllander, i-PHC; I-Polyers iquka i-polyoxyproplene ether glycol (PPG), i-tetrarahydrofuran polyotir gulycol (ptmg), njl.

(2) I-Diisocyanate

Ubunzima bemolekyuli buncinci kodwa lo msebenzi awuhlawulwanga, odlala kuphela indima yokudibanisa icandelo elithambileyo kunye necandelo elinzima, kodwa kwakhona i-TPU eneepropathi ezahlukeneyo zomzimba kunye noomatshini. I-diisocystanates esetyenziswa kwi-TPU yile: Methylene Diphenyli Diisocyanate (MDI), iMethylene Bis (HMDCE), i-1,5-naphloyene diisoclonanate (P-phenyfimyethyl I-Diisocyanate (PXDI), njl.

(3) I-Conin

I-chain yandilarthend ngesisindo semolekyuli ye-100 ~ 5050, yeyokwesimo se-molecular encinci, ubunzima obuvulekileyo, i-chain evulekileyo kwaye akukho qela liphantsi kwaye akukho qela liphezulu lokufumana ubunzima obuphezulu kunye nobunzima obuphezulu be-TPU. I-chain i-chain ilungele i-TPU iquka i-1,4-Butyadiol (BDO), i-BDO), i-BDO), i-2-HHECHEXYTY (i-1-HIIS), i-HQeDehexabimexane (P-PhenyldimethylGlyglymmglygly my (PGG), njl.

Ukusetyenziswa kokulungiswa kwe-TPU njengearhente yokugcoba

Ukwenzela ukunciphisa iindleko zemveliso kwaye ufumane i-Polymorimes eyongezelelweyo, iPolyurethane Thermoplamers inokusetyenziswa njengoko i-enderestors esetyenziswayo isetyenziselwa ukuthoba i-tougshein eyahlukeneyo kunye nezixhobo zerabha eziguqulweyo.

Ngenxa yokuphambuka kwayo, ipoliurethane inokuhambelana ne-Polins Shicians okanye irabha, enjenge-polyethylene ene-tholyethylene (i-CPE), enokusetyenziselwa ukwenza iimveliso zonyango; Ukudibanisa kunye ne-ABS kunokutshintsha ubunjineli be-thermoplastics ukuze basebenzise; Xa isetyenziswa ngokudibeneyo nePolycarbonate (PC), inezixhobo ezinje ngokuchasene neoyile, ukuchasana kwamafutha, kunye nokunganyangeki kwempembelelo, kwaye kungasetyenziselwa ukwenza imizimba yemoto; Xa idityaniswa ne-polyester, ubunzima bayo bunokuphuculwa; Ukongeza, inokuhambelana kakuhle ne-PVC, i-Polyoxythylene okanye i-PVDC; I-Polyester Polyurethane inokuhambelana kakuhle ne-15% yerabha yerabha okanye i-40% yerabha yerabha / pvc; I-Polyether Polyurethane inokuba ihambelana kakuhle ne-40% yerabha yerabha / i-polyvinyl chlorinkl chlorick; Ingahambelana ne-CO ehambelana ne-acryfoitrle (i-san) ye-cellymers; Ingayenza ukuba ungenelelo lothungelwano lwenethiwekhi (ipn) enee-polysiloxaxas ezisebenzayo. Uninzi lwezi zinto zichazwe apha ngasentla zidibene sele ziveliswe ngokusemthethweni.

Kwiminyaka yakutshanje, kuye kwakho uphando olwandayo ekuhanjisweni kwe-PM nge-TPU e China. Ukudityaniswa kwe-TPU kunye ne-POM ayiphumi nje ukuphucula ubushushu obuphezulu kunye neepropathi zoomatshini ze-TPU, kodwa i-TOGHhens iPom. Abanye abaphengululi babonisile ukuba kuvavanyo lwe-golle farix, i-Pom Aloloy ene-TPU igqitywe kwi-Brittle Fract kwi-Brittle Fracture kwi-Brittle Fracture. Ukongezwa kwe-TPU kunye ne-POM yakho ye-POM enememori yokusebenza. Ingingqi ye-crystalline ye-POM isebenza njengenqanaba eliqingqiweyo lememori yobume, ngelixa i-amorphous ye-Amorphous ye-Amorphous i-TPU kunye ne-POM isebenza njengeSigaba esibuyileyo. Xa ubushushu bokuphendula kwakhona buyi-165 ℃ kunye nexesha lokubuyisela kwimeko yesiqhelo yimizuzwana eyi-120, izinga lokubuyisela kwe-alloy le-Alloty lifikelela ngaphezulu kwe-95% yeyona ndlela.

I-TPU inzima ukuba ihambelane nezinto ezingengo-Polymer ezingengubopha njengePolythylene, iPolylpropylene, i-Ethylene Proplene irabha, irabha ye-poplene ye-proplene, ibhulethi ye-i-Inadiene Pobber, iRokone irabha, kwaye ayinakusetyenziswa i-porber ukusebenza. Ke ngoko, iindlela zonyango ezifana nePlasma, iCorona, ikhemistri emanzi, i-primer, idangatye okanye igesi esebenzayo idla ngokusetyenziswa kamva. Umzekelo, iimveliso zomoya waseMelika kunye neekhemikhali zenziwe i-F2 / o2 igesi yegesi ye-raltra-goodle ye-olethylene enesimo se-pullylene esine-10%, enokuyiphucula amandla amakhulu e-molectur, enokubangela ukuba idle. Kwaye i-F2 / O2 igesi esebenzayo ingenziwa kwi-fibers emifutshane ebomvu enobude obuyi-6-35mm, enokuphucula ubunzima obuqinileyo kunye nobunzima bezinto ezihlanganisiweyo.

Zithini iindawo zesicelo se-TPU?

Ngo-1958, inkampani yaseGecerich Chemical (ngoku i-fufanised lubrizool) ibhaliswe i-TPU Brand Enten okokuqala. Kule minyaka ingama-40 idlulileyo, kuye kwakho amagama angaphezu kwama-20 ojikeleze umhlaba, kwaye uphawu ngalunye lunoluhlu lweemveliso ezininzi. Okwangoku, eyona nto iphambili kuye kwabavelisi bezixhobo ze-TPU emhlabeni, zezi: I-BASF, i-cocvestro, i-lubrizol, iHuntsman Corporation, eMckinsey, igolide, njl.

Njengomntu obalaseleyo we-Elastomer, i-TPU inoluhlu olubanzi lweemveliso ezihlathini, ezisetyenziswa ngokubanzi kwiimfuno zemihla ngemihla, iimpahla zemihla ngemihla, iimpahla zezemidlalo, iithoyi, izixhobo zokuhombisa, kunye nezinye izinto. Apha ngezantsi yimizekelo embalwa.

Izixhobo zeShie

I-TPU isetyenziselwa ikakhulu izinto zesihlangu ngenxa yokungaqondakali kunye nokunganyangeki. Iimveliso zeenyawo eziqukethe kakhulu i-TPU zikhululekile kakhulu ukuba zinxibe iimveliso zezihlangu rhoqo, ke zisetyenziswa ngokubanzi kwiimveliso eziziintsizi eziphezulu, ngakumbi izihlangu ezithile kunye nezihlangu eziqhelekileyo.

② hoses

Ngenxa yokuthamba kwayo, amandla amanye amanye amanxuwa, amandla empembelelo, kunye nokuxhathisa amaqondo obushushu aphezulu, amajuba e-TPU asetyenziswe ngokubanzi e-China njengeenqwelo moya, iitanki, izithuthi, kunye nezixhobo zomatshini.

③ Intambo

I-TPU ibonelela ngokuchasene ne-TAR, inxibe ukunganyangeki, kunye nokugoba iimpawu, kunye nokuchasana nobushushu obuphakathi kunye nokuphantsi kweqondo lobushushu nokuba sisitshixo sokusebenza kwentambo. Ke kwimarike yaseTshayina, iintambo eziphezulu ezifana neentambo zolawulo kunye neentambo zamandla zisebenzisa i-TPU ukukhusela izixhobo zokuzila okuntsonkothileyo, kwaye izicelo zazo ziya kusinda ngakumbi.

④ Izixhobo zonyango

I-TPU yindawo ekhuselekileyo, enesitali neyona iphambili ye-PVC, engayi kuba ne-Phthalate kunye nezinye izinto eziyingozi zekheminyi, kwaye ziya kutyeshela igazi okanye ezinye izinto zotywala ezikumnyango wezonyango okanye ibhegi yezonyango ukuba ibangele iziphumo ebezingalindelekanga. Ngapha koko, iBakala lokugqibela lokuphumelela kunye nenaliti i-TPU inokusetyenziswa ngokulula ngokwenza ubuhle kwizixhobo ze-PVC ezikhoyo.

Izithuthi kunye nezinye iindlela zothutho

Ngokukhulisa kunye nokudibana kwamacala omabini e-nylon ye-Polymoristic Tormoplastic Elastomer, i-Deatical Ratet Rafts kunye neerafti zokuhlasela i-rafts kunye ne-rafda yokuhlasela i-rafts kunye nokusebenza ngokutsha, ukusebenza okungcono kakhulu kune-raber yerabha efihlakeleyo; I-Polyurethane Thermoplastic Elastomer iqiniswe nge-fiber yeglasi inokusetyenziselwa ukwenza izinto zomzimba ezifana nezahlulo zomzimba ezifana namacala omabini emoto, izikhumba, imitya ye-antings, i-rulles.