Waa maxay polmoplastic Polyurethane erastomer?

Waa maxay polmoplastic Polyurethane erastomer?

Polyurethane erastomer waa waxyaabo kala duwan oo polyurethane ah Erastomers waa kuwa cudurka loo yaqaan 'polyurethane', oo loo soo gaabiyey maadaama CPUurethane ', oo loo soo gaabiyey cudurka' polyurethane ', oo loo soo gaabiyey sida MPU).

TPU waa nooc ka mid ah cudurka polyurethane ee loo yaqaan 'polyurethane emastomer' oo lagu isticmaali karo kuleylka oo uu kala diri karo dareeraha. Marka la barbar dhigo CPU iyo MPU, TPU wax yar ama isku xirmo kiimiko isku xira qaab dhismeedka kiimikada. Silsiladeeda molitalar ayaa asal ahaan toosan, laakiin waxaa jira xaddi xadidan oo isku xira oo isku xira. Tani waa polmonturethane polyanurethane erastomer oo aad u dabeecad ahaan qaab dhismeedka.

Qaab-dhismeedka iyo Kala-saaridda TPU

Polsoplastic Polyurethane erastomer waa (AB) Bloyar Poomer. A waxay ka dhigan tahay polymer polyol (polyme ama polythert culays, moloji ah oo ah 1000 ~ 6000) oo leh miisaan dheer oo molikal ah, oo loo yaqaan silsilad dheer; B wuxuu matalaa DICE oo ka kooban 2-12 atom si toos ah silsilado ah, oo loo yaqaan silsilad gaagaaban.

Qaab dhismeedka polyurethane polyanurethane ee polyanurethane, qaybta a waxaa loo yaqaan qayb jilicsan, kaas oo leh astaamaha dabacsanaanta iyo jilicsanaanta, sameynta TPU inay yeeshaan filashooyin; Xeerka urethane ee ay ka soo saartay falcelinta ka dhexeysa qeybta hoose ee Base iyo ISKANANATATAGE waxaa loo yaqaan qayb adag, kaas oo leh labadaba dhisme adag oo adag. Adigoo hagaajinaya saamiga qaybaha A iyo B, alaabada TPU ee leh guryo jireed oo kala duwan oo farsamoyaqaanno ah ayaa la sameeyaa.

Marka loo eego qaabdhismeedka qeybta jilicsan, waxaa loo qaybin karaa nooca polyester, nooca poleynetherthertherthert, iyo nooca Budadient, oo siday u kala duwan yihiin kooxda Ether, oo ah kooxda Etter, ama kooxda 'Orether'. Sida ku xusan qaab dhismeedka qaybta adag, waxaa loo qaybin karaa nooca uthane nooca iyo nooca ureaeae nooca, oo siday u kala sooc leh laga helo ethylenels silsiladaha glycol. Kala-saaridda guud ayaa loo qaybiyaa nooca polyester iyo nooca polythertherthert.

Waa maxay alaabta ceyriinka ee loo yaqaan 'tpu synthesis'?

(1) polymer Dolt

Makromolecaulal DICoomat oo leh culeys molikal ah oo u dhexeeya 500 ilaa 4000 iyo kooxo uruur ah, oo ay ka kooban tahay 500% 80% ee TPU Etemomer, waxay door muhiim ah ka qaadataa astaamaha jireed iyo kiimikada ee TPU.

Polymer 'ee ku habboon' TPUER 'oo ku habboon TPU Ebyemer waxaa loo qaybin karaa polyester iyo polythert: polyster waxaa ku jira polytetrametylen acid acid (pba) ε plcl, phc; Polythers waxaa ka mid ah polyxypropylene ether glycol (ppg), tetrahydrofinran polyether glycol (PTMG), iwm.

(2) disocyate

Miisaanka molikalalba wuu yar yahay laakiin shaqadu waa mid aad u fiican, oo aan kaliya u ciyaarin doorka isku xirka qaybta jilicsan iyo qeybta adag, laakiin sidoo kale waxay ku soo bandhigaan hantida jireed ee wanaagsan iyo farsamada. Diisocyanites-ka ku habboon TPU waa: methylene diphenyl diphinyl diphiny (MDI), metclohlisocyrate) (HMDI), 1-NaphyldDerene Diisocyate (NDI), P-PHENTIMETY Diisocyate (PXDI), iwm.

(3) silsilad faafin

Isku xirka silsiladda oo leh miisaanka molikalilka ee 100 ~ 350, oo ka mid ah miisaanka yar yar ee molika, molecular yar yar oo molikal ah, oo ah mid qaab dhismeed furan ah oo aan ahayn koox wax ku ool ah oo lagu wajaho helitaanka culeyska adag iyo miisaanka sare ee maandooriyaha ee TPU. Silsillada silsiladda ku habboon TPU waxaa ka mid ah 1,4-Butandiol (BDO), 1,4-Bdo), BDOXYETOXY) Benzenne (HQDLOHYEDEMETANOL), P-PHYHLIMEMETALLENCOL (PXGLIMESTYGLY (PXG), iwm.

Isticmaalka wax ka badal ee TPU inay tahay wakiil adag

Si loo yareeyo kharashaadka badeecada oo lagu helo wax qabad dheeri ah, taraamyada polyurethane ee loo yaqaan 'polyurethane thermoman' waxaa loo isticmaali karaa maadaama wakiilada sida caadiga ah loo isticmaalo si adag u adkeeya agabyada kala duwan ee fiilada leh.

Sababo la xiriira falashihiisa sare, polyuthane waxay la jaan qaadi kartaa polar-ka polar ama polard, sida polyetylenelene (CPE), oo loo isticmaali karo in lagu sameeyo alaabada caafimaadka; Isku-darka abs waxay ku beddeli kartaa sitermoplaast-ka injineerrada si loo isticmaalo; Markii loo isticmaalo isku darka polycarbonate (PC), waxay leedahay guryo ay ka mid yihiin caabbinta saliida, iska caabbinta shidaalka, iyo iska caabbinta saamiga, waxaana loo isticmaali karaa in lagu sameeyo jirka gaariga; Marka lagu daro polyester, adag ee adag ayaa la hagaajin karaa; Intaas waxaa sii dheer, waxay si fiican ula jaan qaadi kartaa PVC, PoloyoxymyMelene ama PVDC; Polyester polyurethane waxay si fiican ula jaan qaadi kartaa 15% caagga nafijka ama 40% nadaafadda caagga / PVC isku-darka; Polythertherthane sidoo kale waxay ku habboonaan kartaa 40% nitrile caag (polyvinyl chloride chloride chloride chloresive; Waxay sidoo kale la jaan qaadi kartaa acrylonitrile styrene (San) Copoyms; Waxay sameyn kartaa qaabdhismeedka shabakadda ee is-dhexgalka (IPN) ee polysilosanes falcelinta ah. Intooda badan inta badan waxyaabaha kor ku xusan ee ku xusan dhallaanka isku dhafka ah ayaa horey loo soo saaray si rasmi ah.

Sanadihii la soo dhaafay, waxaa jiray cilmi baaris sii kordheysa oo ku saabsan xasaasiyadda POM ee TPU ee Shiinaha. Isku-darka TPU iyo POM kaliya waxay wanaajisaa kaliya iska caabbinta heerkulka sare iyo astaamaha farsamada ee TPU, laakiin sidoo kale si weyn ayey u adkaysaa POM. Baarayaasha qaarkood waxay muujiyeen in baaritaannada jabka jabka, marka la barbar dhigo pom matrix, pom pom oo leh TPU ay ka gudbeen jab jabka jabka. Ku darista TPU waxay sidoo kale dhalisaa pom oo leh qaab qaab fikir xusuus ah. Gobolka Crystallo ee Pom wuxuu u adeegaa sidii wajiga go'an ee qaabka xusuusta ee 'alkoys', halka gobolka amorphphous ee loo yaqaan 'amorphous tpu' iyo pom waxay u adeegtaa wajiga dib loo rogi karo. Marka heerkulka jawaabta soo kabashada uu yahay 165 ℃ oo waqtiga soo kabashada ay tahay 120 ilbiriqsi, heerka soo kabashada ee alkolada ayaa gaaraya in ka badan 95%, iyo saameynta soo kabashada ayaa ugu fiican.

TPU way adagtahay in la la jaan qaado agabyada polar-ka ah ee aan loo yaqaan 'polytylen', polypropylene, polylopylene, caag caag ah, caag caag ah caag ah ama caag caag ah, oo aan loo isticmaali karin in lagu soo saaro waxyaabaha ku saabsan waxqabadka wanaagsan. Sidaa darteed, hababka daaweynta dusha sare sida plasma, corona, kimistariga qoyan, preter, ololka ama gaaska firfircoon ama falcelinta ayaa badanaa loo isticmaalaa kan dambe. Tusaale ahaan, alaabada hawada ee Mareykanka iyo shirkadda kiimikada ee gaaska ah ee gaaska ah ee gaaska ah ee '' '' Iyo dawada dusha ee F2 / O2 ee firfircoon ee gaaska ku shaqeysa ayaa sidoo kale lagu dabaqi karaa fiilooyinka jihada gaagaaban oo dhererkeedu yahay dherer ah 6-35mm, kaas oo horumarin kara adkaanta iyo adkeynta ilmada ee sheyga isku-darka ah.

Waa maxay aagagga arjiga ee TPU?

Sannadkii 1958, shirkadda kiimikada ee wanaagsan (oo hadda loo magacaabay Lubrizol) ayaa diiwaangashan TPU Prand Estar markii ugu horeysay. In ka badan 40-kii sano ee la soo dhaafay, waxaa jiray in kabadan 20 magac oo caan ah oo adduunka ah, astaan ​​kastaana waxay leedahay dhowr taxane oo taxane ah. Waqtigan xaadirka ah, soosaarayaasha ugu weyn ee TPU Cajiib ah ee adduunka waa: Basf, Covestro, Lubxinsson, McKinsey, dahabka, iwm.

Sida loo yaqaan 'Etastomer' aad u fiican, TPU waxay leedahay wax soo saar ballaaran oo hoos u dhac ah, kuwaas oo si ballaaran loogu adeegsado baahiyaha maalinlaha ah, alaabada isboortiga, alaabada lagu ciyaaro, iyo meelaha kale. Hoos waxaa ku yaal tusaalooyin dhowr ah.

① Qalabka kabaha

TPU inta badan waxaa loo isticmaalaa agab kabo oo ay sabab u tahay xargaha wanaagsan oo ay u fiican tahay caabbinta caabbinta. Alaabada kabaha ka kooban ee ay kujirto TPU ayaa aad uga deggan in la xidho kabaha kabaha caadiga ah ee kabaha caadiga ah, si ay si weyn ugu isticmaalaan alaabada kabaha sare, gaar ahaan kabaha isboortiga qaarkood iyo kabaha isboortiga.

② tuubooyinka

Jimicsanaanta, xoogga wanaagsan, xoogga saameynta, iyo iska caabbinta heerkulka sare iyo kan hoose, tuubooyinka tuubooyinka TPU waxay si ballaaran u yihiin qalabka farsamada sida diyaaradaha sida diyaaradda, taangiyada, gawaarida, gawaarida, iyo qalabka mashiinka.

③ fiilo

TPU waxay bixisaa iska caabbinta ilmada, xidho iska caabbinta, iyo caabbinta foodda, oo leh caabbinta heerkulka sare iyo heerkulka hoose ee heerkulka sare iyo heerkulka hoose ee ah furaha waxqabadka fiilada. Marka suuqa Shiinaha, fiilooyinka sare sida fiilooyinka kontaroolka iyo fiilooyinka korantada waxay u isticmaalaan TPUs si loo ilaaliyo qalabka daboolka ee naqshadaha adag ee dharka adag, oo codsiyadooda ayaa sii kordhaya.

④ Qalabka caafimaadka

TPU waa wax amaan ah oo lagu beddelo PVC ama tayo sare leh oo tayo sare leh, oo aan ku jiri doonin walxaha kale ee waxyeelada leh, waxayna u guuri doonaan dhiigga ama cabitaannada kale ee ku yaal tuubada caafimaadka ama bacda caafimaadka si ay u keenaan waxyeelo. Intaa waxaa sii dheer, in si gaar ah loo soo sareeyo heerka fasalka iyo fasalka duritaanka TPU si fudud ayaa loo isticmaali karaa iyadoo lagu qoro qalabka yar ee PVC.

⑤ Gawaarida iyo hab kale oo gaadiid ah

Adoo ku soo degaysa iyo darada labada dhinac ee dharka nylon ee loo yaqaan 'polyurethane pastemomer' polmomplaser-ka polmomplastik, oo lagula dagaallamayo elastom-ka iyo dib-u-soo-celinta wax lagu sameeyo 3-15 qof ayaa laga yaabaa in wax qabad aad u wanaagsan oo ka wanaagsan caagga caagga ah ee caagga ah ee caagga ah; Qalabka polyurethane ee loo yaqaan 'polyurethane thermomluer'