TPU yog polyurethane thermoplastic elastomer, uas yog ib multiphase block copolymer muaj los ntawm Diisocyanates, polyols, thiab saw txuas ntxiv. Raws li kev ua tau zoo elastomer, TPU muaj ntau yam kev siv hauv cov khoom siv hauv qab, thiab lwm cov khoom siv khau, thiab lwm yam khoom siv khau, cov khoom siv, hluav taws xob, thiab lwm yam khoom siv kho mob, thiab lwm yam khoom siv kho mob, thiab lwm yam.
Tam sim no, lub ntsiab TPU cov khoom lag luam tawm xws li cov khoom lag luam, cov khoom sivLinghua Cov Ntaub Ntawv Tshiab, thiab yog li ntawd. Nrog cov txheej txheem thiab muaj peev xwm nthuav dav ntawm cov lag luam hauv tsev hauv tsev, kev lag luam TPU yog tam sim no sib tw. Txawm li cas los xij, nyob rau hauv lub chaw thov siab kawg, nws tseem muaj kev cia siab rau ntawm kev lag luam, uas tseem yog thaj chaw uas Suav yuav tsum tau txais kev ua lag luam TPU.
1. Supercritical foaming e-tpu
Xyoo 2012, Adidas thiab Basf sib koom ua ke tsim cov khau khau hom condernbooot, uas siv lub npe Infinter) raws li cov khoom siv hluav taws xob. Vim kev siv cov polyether tpu nrog ib tug ntug dej nyuaj ntawm 80-85 raws li lub subscenses, piv rau kev ua kom zoo rau hauv qab no 0 ℃, uas txhim kho kev nplij siab hauv qab no 0 ℃, uas txhim kho kev nplij siab hauv qab no thiab yog pom tau dav hauv kev ua lag luam.
2. Fiber ReinflandCed Hloov Kho Cov Khoom Siv Tpu
TPU muaj kev cuam tshuam zoo, tab sis hauv qee cov ntawv thov, High Elastic Modulus thiab cov ntaub ntawv nyuaj yog qhov yuav tsum tau ua. Iav Fiber Kev Hloov Ua Zog yog ib cov txheej txheem uas siv tau los ua kom muaj cov khoom siv loj heev ntawm cov ntaub ntawv. Los ntawm kev hloov kho, thermoplastic ib cov ntaub ntawv nrog ntau yam zoo xws li cov kev tiv thaiv zoo, tsis muaj zog ntawm cov khoom siv hluav taws xob, thiab muaj sia nyob sab nrauv.
Basf tau qhia txog cov thev naus laus zis rau npaj siab siab fiberglass txhawb cov tpu siv iav luv luv hauv nws daim ntawv patent. Ib qho TPU nrog ntug dej D tawv heev ntawm 83 tau synthesized polytetrafluoroethylene glycol (BDI-Butanol (BDI) nrog 1,3-propanediol raws li cov ntaub ntawv raw. Qhov no TPU tau sib xyaw nrog iav fiber ntau hauv kev sib piv ntawm 52:48 kom tau txais cov khoom siv sib xyaw nrog lub zog loj ntawm 244 MPA.
Ntxiv nrog rau cov iav fiber, kuj tseem muaj cov ntaub ntawv siv carbon fiber ntau dua tpu, uas muaj ib qho moduro fiber ntau, uas muaj ib qho mapsro fiber ntau / tpu loj hlob ntawm txog 100gpa thiab qis dua qhov chaw qis dua li hlau.
3. Halogen Dawb Nraim Retardant Tpu
TPU muaj lub zog siab, muaj zog heev, hnav tsis kam thiab lwm yam khoom, ua nws cov ntaub ntawv zoo heev rau cov xov hlau thiab cable. Tab sis hauv daim teb thov xws li them cov chaw nres tsheb, ntau dua cov nplaim hluav taws xob rov qab yuav tsum tau ua. Feem ntau muaj ob txoj hauv kev los txhim kho cov nplaim taws retardant kev ua yeeb yam ntawm TPU. Ib qho yog cov nplaim hluav taws xob hloov kho cov nplaim hluav taws xob cov nplaim hluav taws xob cov khoom siv xws li Posphorus, thiab lwm cov khoom rau hauv cov khoom siv tshuaj lom neeg; Qhov thib ob yog cov nplaim taws ntxiv retardant kev hloov kho, uas muaj feem cuam tshuam rau kev siv TPU raws li lub substrate thiab ntxiv nplaim retardants rau yaj sib tov.
Refactive hloov kho tau tuaj yeem hloov cov qauv ntawm TPU, tab sis thaum tus nqi ntawm TPU txo qis, thiab ntxiv ib qho me me tsis tuaj yeem ua tiav cov nplaim hluav taws xob uas tsev. Tam sim no, tsis muaj kev lag luam muaj cov khoom lag luam zoo dua qub uas tuaj yeem ua tau raws li kev thov ntawm cov chaw nres tsheb.
Yav tas los Bayer Siv (tam sim no Kostron) ib zaug qhia cov organic phosphorus muaj polyol (IHAIS) raws li phosphine oxide hauv patent. Lub polyether tpu synthesized los ntawm ihpeg-1000, 4,4 '- MTDI, thiab Lawb cov khoom plig zoo nkauj retardancy thiab cov yam ntxwv. Qhov txheej txheem Extrusion yog tus du, thiab cov npoo ntawm cov khoom yog tus.
Ntxiv Halogen-Dawb nplaim retardants yog tam sim no feem ntau siv kev siv rau kev npaj cov nplaim halogen-dawb retardant tpu. Feem ntau, phosphorus raws li, nitrogen raws, silicon raws li, Boron raws li nplaim ci rethats yog muab tso ua ke lossis hlau retardants. Vim tias qhov muaj nplaim taws ntawm TPU, cov nplaim taws retardant txhaws ntau dua 30% feem ntau yuav tsum tau ua ib qho hluav taws xob me ntsis txheej thaum lub sijhawm sib txuas. Txawm li cas los xij, thaum tus nqi ntawm nplaim retardant ntxiv yog loj, uas yog qhov tsis zoo, thiab cov neeg mechanical retardant tpu, thiab kev nce qib hauv liaj teb xws li hoses, zaj duab xis, thiab cables.
Basf's pattre qhia cov nplaim taws-retardant tpu technology, uas sib xyaw ua ke ntawm phosphinic muaj derame retardants nrog tus luj nruab nrab molecular hnyav molecular hnyav hnyav dua 150kda. Nws tau pom tias cov nplaim taws retardant kev ua tau zoo heev thaum ua tiav lub zog siab tensile lub zog.
Txhawm rau txhim kho lub zog tensile ntawm cov khoom siv tau nthuav qhia ib txoj kev rau kev npaj cov neeg sawv cev hla Masterbatch muaj isocyanates. Ntxiv 2% ntawm cov qauv ntawm no kom tau raws li Ul94V-0 Cov nplaim taws ua rau 40MPA thaum tswj cov kev ua tau zoo V-0.
Txhawm rau txhim kho cov kev kub ntxhov kub tiv thaiv cov nplaim hluav taws xob-retardant TPU, patent ntawmLinghua tuam txhab ntaub ntawv tshiabKuj tseem qhia ib txoj hauv kev ntawm kev siv saum npoo hlau co hlau hydroxides raws li nplaim retardants. Txhawm rau txhim kho cov hydrolysis tsis kam ntawm nplaim taws-retardant tpu,Linghua tuam txhab ntaub ntawv tshiabQhia cov hlau carbonate ntawm kev ntxiv melamine nplaim retardant hauv lwm daim ntaub ntawv patent.
4. TPU rau kev tiv thaiv kev tiv thaiv cov xim tiv thaiv kev tiv thaiv zaj duab xis
Tsheb Xim Tiv Thaiv yog cov yeeb yaj kiab tiv thaiv uas cais cov xim saum npoo av, oxidation, khawb, thiab muab cov xim pov tseg rau cov xim saum npoo. Nws lub ntsiab muaj nuj nqi yog los tiv thaiv lub tsheb pleev xim saum npoo tom qab kev teeb tsa. Cov xim tiv thaiv cov yeeb yaj kiab feem ntau muaj peb txheej, nrog txoj kev kho tus kheej rau saum npoo av, thiab cov duab puab zoo-rhiab nplaum rau hauv qab txheej. TPU yog ib qho ntawm cov ntaub ntawv tseem ceeb rau kev npaj cov yeeb yaj kiab nruab nrab polymer.
Cov kev xav tau kev ua tau zoo rau TPU siv rau hauv kev tiv thaiv xim yog li hauv qab no: Kev hloov pauv lub zog (lub zog kub), elongation> 400%, thiab dej hiav txwv ntau ntawm 87-93; Qhov tseem ceeb tshaj plaws yog huab cua tiv, uas suav nrog kev tiv thaiv UV kev laus, thermal oxidative kev ua tsis taus, thiab hydrolysis.
Tam sim no cov khoom tiav yog aliphatic tapu los ntawm Dicyclohexyl Diisocyanate (H12mdi) thiab Polycaprolactone Diol yog cov khoom raw. Zoo tib yam ntxhiab tsw ntxhiab tpu ntshiab puv xim tom qab ib hnub UV DRRRADIAT TPU siv rau kev ua yeeb yaj kiab cov duab ua kom muaj kev hloov daj yam tsis muaj kev hloov pauv tib yam.
Poly (ε - caprolactone) TPU muaj kev ua tau zoo dua piv rau Polyether thiab Polyester TPU. Ntawm ib sab tes, nws tuaj yeem pom cov kua muag zoo tshaj plaws ntawm polyester TPU, thaum nws ua tau zoo ntawm polyether TPU, yog li tau siv dav hauv kev ua lag luam.
Vim muaj cov nqi sib txawv rau cov khoom lag luam segmentation, nrog kev txhim kho cov tshuab txheej txheem sib haum xeeb, muaj sijhawm rau kev hloov kho cov duab saum npoo av, tseem muaj kev hloov kho ntawm cov xim sib dhos rau yav tom ntej.
5. Biobased Tpu
Cov txheej txheem ib txwm npaj rau kev npaj Bio raws li Monomers, xws li BiMerization yog cov khoom lag luam polymermes, thiab lwm yam nyob rau hauv kev ua lag luam, thiab lwm yam ntawm biodasanates tsis tshua muaj neeg ua lag luam, thaum muaj biobased polyols muaj ntau.
Nyob rau hauv cov nqe lus ntawm bio raws li isocyanates, thaum ntxov li 2000, basf, fasf, thiab lwm tus tau nqis peev nyiaj rau hauv PdI cov khoom tau muab tso rau hauv kev ua lag luam xyoo 2015-2016. WANHUA tshuaj tau tsim 100% Bio raws TPU cov khoom siv BIO raws PDI tsim los ntawm pob kws stover.
Nyob rau hauv cov nqe lus ntawm bio raws polyols, nws suav nrog Bio raws polytetrostoroethylene (pdio raws li polyester polyols, bio raws polyeth raws polyethols, thiab lwm yam.
Ntawm tam sim no, ntau tus TPU tuam ntxhab tau tsim Bio raws TPU, uas nws tau ua yeeb yam yog sib piv rau cov tsiaj petrochemical raws li TPU. Lub ntsiab sib txawv ntawm cov bio reved tpus lus dag nyob rau theem ntawm bio raws cov ntsiab lus, feem ntau xws li 30%, nrog qee qib ua tiav qib siab dua. Piv nrog rau cov tsiaj petrochemical raws TPU, Bio raws TPU muaj qhov zoo ntxiv ntawm cov khoom siv raw, ntau lawm kev txuag. BASF, cov lus qhia, lubrizol, Wanhua tshuaj lom neeg, thiabLinghua Cov Ntaub Ntawv TshiabTau launched lawv bio raws tpu hom, thiab carbon txo thiab muaj kev ruaj khov kuj tseem yog cov lus qhia tseem ceeb rau kev txhim kho TPU hauv yav tom ntej.
Lub sij hawm Post: Lub Yim Hli 09-2024