Menene thermethara na therurethane?

Menene thermethara na therurethane?

Polalthane Elastomer akwai nau'ikan kayan polyurethane na polyurthanes (wasu nau'ikan suna nufin Foam na Polyurthaney Elastomer na Polyurthane Elastomer na Polyurthane Elastomer, mutane na yawancinsu suna magana ne a matsayin Tpu (Sauran manyan nau'ikan nau'ikan polyurethane suna jefa Polyurethane Elastomers, a rage su azaman CPU, kuma gauraye Polyurethane Elastomers, a rufe shi a matsayin MPU).

TPU wani nau'in polyurthane elastomer ne wanda za'a iya filastik ta hanyar dumama da narkewa ta hanyar sauran ƙarfi. Idan aka kwatanta da CPU da MPU, TPU bashi da karancin kariya ko kuma masu haɗin kai tsaye a tsarin sunadarai. Sarkar jikinta tana da ma'ana mai ma'ana, amma akwai wani adadin abubuwan haɗin jiki na jiki. Wannan shi ne thermoplastic Polyurethanestic Polyurethane wanda yake da halaye ne cikin tsari.

Tsari da kuma rarrabuwa na tpu

Enastic Polyurethane erastomeric Polyurethane Elastomer shine (A) toshe polymer. A wakiltar polymer polyol (ester ko polyether, nauyin kwayoyin na 1000 ~ 6000) tare da nauyin kwayar halitta, wanda ake kira dogon sarkar. B yana wakiltar diol dauke da 2-12 madaidaiciya surukan carbon carbon carbon, wanda ake kira gajeriyar sarkar.

A cikin tsarin thermethanestic Polyurthane elastethane Elastomer, kashi a ana kiransa sumber, wanda ke da halaye na sassauƙa da taushi, yin tpu suna da ƙaruwa; Urethane sarkar da aka kirkira ta hanyar amsawa tsakanin sashin Base da Isocyanate ana kiranta sashi mai wuya, wanda ke da tsauraran abubuwa biyu da wuya. Ta hanyar daidaita rabo daga cikin yanki, samfuran tpu tare da daban-daban properties ana yin su.

According to the soft segment structure, it can be divided into polyester type, polyether type, and butadiene type, which respectively contain ester group, ether group, or butene group. Dangane da tsarin wuya, ana iya rarraba shi zuwa nau'in Urethane da nau'in Urethane Urea, wanda aka samu daga sarkar glycol ko diamine glycol. An rarraba rarrabuwa a cikin nau'in polyester da nau'in polyether.

Menene albarkatun ƙasa don tpu kira?

(1) diol

Macromemeculular Diol tare da nauyin kwayar halitta daga 500 zuwa 4000 da kuma abubuwan da suka shafi kashi 50% zuwa 80 zuwa 80% a cikin kayan tpu da keɓaɓɓe na TPU.

A polymer diol dace da tpu elastomer za a iya raba shi zuwa polyester da Polyester ya hada da PLYTTTTRAMETHOIC Aci Glycol (PBA) ε wasan PLCL, PHC; Polyeters sun hada da polyoxypropylene eth), tetrahydrofuran polyeth glycol (ptmg), da dai sauransu.

(2)

Girman kwayar cuta yana da ƙanƙanta amma aikin bai yi fice ba, wanda ba wai kawai yana taka rawar da haɗa sinad da taushi da kayan aiki ba. Diiscyanatas p-phenylimimimethyl diiscyanate (PXDI), da sauransu.

(3) sarkar sarkar

Sarkar sarkar tare da nauyin kwayar halitta na 100 ~ 350, na kananan ƙwayoyin ƙwayoyin cuta, buɗe sarkar kuma babu amfani da mahimman matakan tpu. A sarkar sun kai da tpu sun hada da 1,4), 1,4), 1,4-hqee), 1,4

Canjin aikace-aikacen TPU azaman wakili mai toughening

Don rage farashin kayayyaki kuma sami ƙarin aiki, polyurthane thermoplastic olastomers za a iya amfani da shi kamar yadda ake amfani da wakilan Toughening na Toughen daban-daban na Tuaghen daban-daban.

Saboda babban pallity, polyurethane na iya dacewa da resins polar resin ko kwalbers, irin su cholyethylene (cpe), wanda za'a iya amfani dashi don yin samfuran likita; Hukumar da za a iya sauya su don maye gurbin thermoplastics thermoplastics don amfani; Lokacin amfani dashi a hade tare da polycarbonate (PC), yana da kayan kwalliya kamar juriya na mai, kuma ana iya amfani da su don yin gawawwakin mota; Idan aka haɗu da polyester, ta tauri za'a iya inganta; Bugu da kari, za a iya dacewa da dacewa tare da PVC, Polyoxymethylene ko PVDC; Polyseter Polyurethane na iya zama da kyau dacewa da 15% nitrile roba ko 40% nitrile roba / PVC hade; Hakanan Polyurethane yana iya zama mai dacewa da roba 40% na roba / polyvinyl chloridede hade m; Hakanan zai iya zama mai jituwa tare da ptyrene cloolene (San) Cofemers; Zai iya samar da tsarin sadarwa (IPN) tare da kayan polysiloxanes. An riga an sami mafi yawan adherin da aka ambata a bisa hukuma.

A cikin 'yan shekarun nan, akwai karuwar bincike kan har zuwa shafi Pom ta TPU a China. Haɗe na TPU da Pom ba kawai inganta tsayayyen yanayin zafi da kayan aikin TPU ba, amma kuma yana da matuƙar toughens pom. Wasu masu bincike sun nuna cewa a cikin gwaje-gwaje na tenarba, idan aka kwatanta da Pom Matrix, Pom Almonoy tare da TPU ya juya daga cikin karaya na bitle. Additionarin ƙari na TPU kuma yana kwance pom tare da fasalin ƙwaƙwalwar ajiya. Yankin Cugstalline na Pom ya zama a matsayin ajali na siffar siffar ƙwaƙwalwa na Alhoy, yayin da yankin amorpuhous TPU da Pom suna aiki a matsayin lokacin juyawa. Lokacin da ake mayar da martani zafin zafin jiki shine 165 ℃ da lokacin dawo da su shine 120 seconds na Alloy, kuma sakamakon dawowar shine mafi kyau.

TPU yana da wuya a dace da kayan polymer marasa amfani kamar polyethylene, polypropylene roba, da roba propyleene roba, kuma ba za a iya amfani da shi don samar da kayan aiki tare da kyakkyawan aiki. Sabili da haka, hanyoyin kula da jiyya kamar plasma, Corona, rigar chemistry, na farko, an yi amfani da wutar da ba a yi amfani da ita ba ga na ƙarshen. Misali, kayayyakin iska da kamfanin sunadarai sun aiwatar da jiyya na F2 / O2 aiki da nauyin kwayar cutar Polyethylene mai nauyin Polyurthal a wani yanki na 10%, wanda ya kara inganta modulal modular, ƙarfi da kuma sa juriya. Kuma ana iya amfani da maganin F2 / O2 masu aiki a cikin shugabanci na elongated elongated elongated gajere fibers da tsawon 6-3mmm, wanda zai inganta taurin da tsinkaye na kayan haɗin.

Menene wuraren aikace-aikacen na TPU?

A cikin 1958, kamfanin sinadarai na gida (yanzu suna sake sunan Lubrizol) sun yi rijistar TPU Brand Estane a karo na farko. A cikin shekaru 40 da suka gabata, akwai sunaye sama da 20 a duniya, kuma kowannen alama yana da samfurori da yawa. A halin yanzu, babban tpu raw kayan masana'antun a duniya sune: Basf, Covestro, Lubrizol, Huntinsey, Zinare, zinare, da sauransu.

A matsayin kyakkyawan elastomer, TPU yana da samfuran samfuran ƙasa mai yawa, waɗanda aka yi amfani da su a cikin abubuwan yau da kullun, kayan wasanni, kayan wasa, kayan ado, da sauran filayen. Da ke ƙasa akwai wasu misalai.

Al'ada

Ana amfani da TPU yafi don kayan takalmin saboda kyakkyawan yanayin elasticity da sa juriya. Kayan samfuran da ke ɗauke da TPU sun fi dacewa da kayan kwalliya fiye da samfuran takalmin kuɗi na yau da kullun, don haka ana samun amfani sosai a cikin samfuran ƙwayoyin takalmi na yau da kullun, musamman wasu takalmin wasanni da takalma.

② Hoses

Saboda taushi, da ƙarfi mai yawa, ƙarfin tasiri zuwa ga ƙasa da ƙananan kayan aiki kamar jirgin sama, tpu, motoci, motocin injin, da kayan aikin injin, da kayan aikin injin, da kayan aikin injin.

③ kebul

TPU tana ba da juriya, sa juriya, da kuma dadewa da halaye, tare da ƙarancin ƙarfin zazzabi kasancewa mabuɗin na USB. Don haka a kasuwar kasar Sin, igiyoyin ci gaba kamar suna sarrafa igiyoyi da igiyoyin wutar lantarki don kare kayan haɗin kebul na USB, kuma aikace-aikacen su suna ƙara yawan yadu.

Na'urorin likita

Tpu wani hadari ne, mai tsauri da ingancin kayan pvc mai inganci da sauran abubuwa masu cutarwa ko kuma jakar likita don haifar da tasirin gaske. Haka kuma, musamman haɓakar haɓakawa na musamman da allurar allura Tpu ana iya amfani dashi da sauƙi tare da karamin yanki a cikin kayan aikin PVC.

Motocin da sauran hanyoyin sufuri

Ta hanyar wucewa da kuma shafi bangarorin nailan da thalstoman hermoplastic olastomer, da aka kawo mutane masu ɗaukar hoto da ke ɗauke da mutane 3-15. Polyurethane thermoplastic olastomer karfafa tare da fiber gilashin za a iya amfani da shi don yin abubuwan da aka gyara na jikin da kanta, kofa ta skins, da grilation tube, da griles.