Musiyano uripo pakati peTPU Polyether rudzi uye polyester mhando

Mutsauko uripo pakatiTPU Polyether TypeuyePolyester mhando

TPU inogona kukamurwa kuita marudzi maviri: Polyether rudzi uye polyester mhando. Zvinoenderana nezvinodiwa zvakasiyana zvezvigadzirwa zvechigadzirwa, mhando dzakasiyana dzeTPUS dzinoda kusarudzwa. Semuenzaniso, kana zvinodiwa zveHydrolysis kupokana zvakakwirira, polyether mhando TPU yakakura kupfuura polyester mhando tpu.

Saka nhasi, ngatitaurei nezve misiyano iri pakatiPolyether Type Tpuuyepolyester mhando TPU, uye kuti vangasiyanisa sei? Izvi zvinotevera zvichajeka pazvinhu zvina: misiyano muzvinyorwa zvekushandisa, misiyano yemhando, maitiro ekuenzanisa, uye nzira dzekuzivikanwa.

1, misiyano muzvinhu zvisina kugadzirwa

Ini ndinotenda vanhu vazhinji vanoziva pfungwa yeTernomplastic elastomers, ine chimiro chechimiro chine zvikamu zviviri zvakapfava uye zvakaoma, zvichiteerana, kuunza kuomarara uye kuomarara kune izvo zvinyorwa.

Tpu zvakare ine zvese zvakapfava uye zvakaoma kemacheni, uye mutsauko pakati pePolyether Type Tpu uye Polyester mhando TPU inogara mumusiyano muzvikamu zvakapfava. Tinogona kuona mutsauko kubva kune zvigadzirwa zvemidziyo.

Polyether Type TPU: 4-4 - Diphelmethane Diisocyanate (MDI), Polytetetrahydrofanate (PTMEG), 1,4-butaneddial (bdo)

Polyester Type TPU: 4-4 - Diphelmethane Diisocyanate (MDI), 1,4-butanedicool (Bdocic acid (Aa)

Tinogona kuona kuti zvinyorwa zveblyether type tpu trp soften keteni chikamu ndeyePolytetrahdrof (ptmeg); Mhedzisiro yePolyster Type TPU STEP CARCHEMA ZVINOGONESWA (AA), uko Adipic acid inoenderana neBarika Polyutylene Adpody Segment Segment Segment.

2, kusiyana kwakamira

Iyo molecular ketani yeTPU ine (AB) N-TYPEL BOLTER LELTECE, BLYETER kana Polyeser

Maererano nezvakaringana zvimiro zveA, TPU inogona kukamurwa kuva polyester mhando, polycapurer rudzi, polycapurcapurecy mhando, etc.

Kubva pane imwe nhamba iri pamusoro, tinogona kuona kuti marefu marefu emhando yePolyether typu tpu mese mese midziyo, nemusiyano mukuru wechidimbu cheni chakapfava chiri polyether polyt kana polyester polyter.

3, kuenzanisa kwezviitiko

Polyether polyols ine doro polymers kana yakasvibira ine ether zvisungo uye hydroxyl mapoka pamapoka ekupedzisira pane iyo molecular main keteni chiratidzo. Nekuda kwesimba rayo rakaderera rekubatanidza kwe ether zvisungo muchimiro chayo uye nekureruka kwekutenderera.

Naizvozvo, polyether tpu ine yakanakisa yakaderera-tembiricha, hydrolyis kuramba, mold kuramba, etc. Chigadzirwa chine ruoko rwakanaka, asi simba rePeel uye kusvibisa simba rakakura.

Mapoka esters ane simba rakakomberedza remahara mune polyester polyls anogona kuumba hydrogen zvisungo neye hard camberes, kushandira seclastic yekuyambuka mapoinzi. Nekudaro, polyester inowanzo kuputsa nekuda kwekupinda kwemamolekyudhi emvura, uye iyo acid yakagadzirwa neHydrolysis inogona kuenderera mberi nehydrolysis.

Naizvozvo, Polyester Tpu ane zvinhu zvakanakisa zvekuita, kupfeka kuramba, kupokana, kupokana kwemakemikari, kupesana kwakanyanya, uye kugadzirisa zviri nyore, asi kurwisa kwehydrolysis kuramba.

4, nzira yekuzivikanwa

Kana iri iyo TPU iri nani kushandisa, inogona kungotaurwa kuti kusarudzwa kunofanirwa kuve kwakavakirwa pane zvemuviri zvinodiwa zvechigadzirwa. Kuti uwane yakanaka michina yezvivakwa, shandisa polyester tpu; Kana uchifunga nezve mutengo, density, uye chigadzirwa yekushandisa nzvimbo, sekugadzira zvigadzirwa zvemvura, polyether tpu zvakakodzera zvakanyanya.

Nekudaro, kana uchisarudza, kana netsaona kusanganisa marudzi maviri eTPUS, ivo havana mutsauko wakakosha pakuonekwa. Saka tinofanira kusiyanisa sei?

Pane nzira dzakawanda, dzakadai semakemikari colorimetry, gasi chromatography-misa spectrometry (GCMS), pakati pezvisvinu spectrarecopy, etc. Nekudaro, nzira idzi dzinoda zvakakwirira zvehunyanzvi uye tora nguva yakareba.

Pane nzira iri nyore uye inokurumidza kuzivikanwa? Mhinduro ndeyekuti hungu, semuenzaniso, density enzanisa nzira.

Iyi nzira inongoda imwe density tester. Kutora yakanyanya-chaiyo rubber density meter semuenzaniso, nhanho dzekuyerwa ndeiyi:

Isa chigadzirwa mubhafura yekuyera, ratidza uremu hwechigadzirwa, uye tinya iyo Enter kiyi yekurangarira.
Isa chigadzirwa mumvura kuratidza kukosha kweiyo density.
Maitiro ese ekuenzanisa anotora anenge mashanu masekondi, uye ipapo inogona kusiyaniswa kubva pane iyo denster yePolyester mhando TPU yakakwira kupfuura iyo yePolyether Type TPU. Iyo chaiyo denity renji ndeye: polyether mhando TPU -1.13-1.18 g / cm3; Polyester Tpu -1.18-1.22 g / cm3. Iyi nzira inogona kukurumidza kusiyanisa pakati peTPU Polyester mhando uye polyeter mhando.