Category: Thermoplastic Polyurethane Elastomer

Thermoplastic polyurethane elastomer, inozivikanwawo se TPU, imhando ye (AB) n block linear polymer. A inomiririra huremu hwepamusoro-soro (1000 ~ 6000) polyester kana polyether, uye B inomiririra diol ine 2 ~ 12 yakatwasuka ketani kabhoni maatomu. Chimiro chemakemikari pakati pezvikamu zveAB diisocyanate. Thermoplastic polyurethane rubber inotsamira pane intermolecular hydrogen bonding cross-linking kana mild cross-linking pakati pemacromolecular cheni. Nekuwedzera kana kuderera kwekushisa, aya maviri emuchinjiko-anobatanidza zvimiro ane reversibility. Munzvimbo yakanyungudutswa kana mamiriro ekugadzirisa, iyo intermolecular simba pakati pemamorekuru inopera simba, uye mushure mekutonhodza kana kunyunguduka kwemhepo, simba rakasimba remaintermolecular rinozvibatanidza pamwechete kudzoreredza kushanda kwakasimba kwepakutanga. Typical TPU inosanganisira spandex, nezvimwewo.

Nhepfenyuro shoma

Thermoplastic polyurethane elastomer (TPU) imhando yemhando yakatsetseka inogona kuiswa mupurasitiki nekudziya uye kunyungudutswa nezvinonyungudutsa. Iyo ine yakanakisa yakazara zvimiro senge kusimba kwepamusoro, kusimba kwepamusoro, kupfeka kuramba, uye mafuta kuramba, pamwe nekuita kwakanaka kwekugadzirisa. Inoshandiswa zvakanyanya mumaindasitiri akadai sekudzivirira kwenyika, kurapwa, uye chikafu.

Nekuita kwayo kwakanaka uye kushandiswa kwakafara, thermoplastic polyurethane elastomer yave imwe yeakakosha thermoplastic elastomer zvinhu. Mamorekuru ayo ane mutsara uye ane zvishoma kana kusava nemakemikari anoyambuka. Kune akawanda emuviri machinjiro-anosanganisirwa anoumbwa ehydrogen bond pakati pe linear polyurethane molecular cheni, uye hydrogen bond inoita basa mukusimbisa morphology yavo, nekudaro ichipa akawanda akanakisa zvivakwa senge yakakwira modulus, simba repamusoro, yakanakisa kupfeka kuramba, makemikari kuramba, hydrolysis kuramba. , yakakwirira uye yakaderera tembiricha kuramba, uye mold resistance. Izvi zvakanakisa zvivakwa zvinoita kuti thermoplastic polyurethane ishandiswe zvakanyanya muminda yakawanda senge shangu, tambo, zvipfeko, mota, zvekurapa uye hutano, mapaipi, mafirimu, uye mashizha. Chigadzirwa chekupedzisira kazhinji hachidi vulcanization cross-linking, iyo inogona kupfupisa maitiro ekutenderera uye kuderedza kushandiswa kwesimba. Sezvo iri mutsara chimiro chepolymer, tekinoroji imwechete uye zvishandiso se thermoplastic mapurasitiki anogona kushandiswa kugadzirisa, senge jekiseni kuumba, extrusion, blowing molding, uye calendering, kunyanya yakakodzera kugadzirwa kwakawanda kwepakati uye diki-saizi zvikamu. Zvinhu zvakaraswa zvinogona kudzokororwa uye kushandiswazve, uye zvakasiyana zvekuwedzera kana mafirita zvinogona kushandiswa mukugadzira kana kugadzirisa maitiro kuvandudza zvimwe zvinhu zvemuviri uye kuderedza mitengo.

kupatsanura

Thermoplastic polyurethane elastomers inogona kupatsanurwa mumhando mbiri: polyester mhando uye polyether mhando. Iwo machena asina kujairika spherical kana columnar zvimedu zvine density ye1.10 ~ 1.25g/cm3. Hukama hwemhando yemhando yepolyether idiki pane yerudzi rwepolyester. Iyo tembiricha yegirazi yekuchinja yemhando yepolyether ndeye 100.6 ~ 106.1 ℃, nepo iyo yemhando yepolyester iri 108.9 ~ 122.8 ℃. The brittle tembiricha yemhando mbiri dzepolyether nepolyester yakadzikira pane -62 ℃, uye kudzika-kupisa kwemhando yepolyether kuri nani pane kwerudzi rwepolyester.

mamirire

Hunhu hwakatanhamara hwe thermoplastic polyurethane elastomers hwakanyanya kupfeka kuramba, yakanyanya kunaka ozone kuramba, kuomarara kwepamusoro, kusimba kwepamusoro, elasticity yakanaka, uye kushomeka kwekushisa. Ivo zvakare vane yakanaka mafuta kuramba, makemikari kuramba, uye kwezvakatipoteredza kuramba. Munzvimbo dzine hunyoro, kugadzikana kwehydrolysis yemhando yepolyether yakakura kwazvo kupfuura yerudzi rwepolyester.

Tekinoroji Itsva uye Mashandisiro Matsva

TPU iindasitiri inokurumidza kusimukira, ine matekinoroji matsva, zvigadzirwa, uye maapplication ari kubuda nguva dzose. TPU yakashandiswa zvakanyanya mumaindasitiri akasiyana siyana, anosanganisira shangu, zvipfeko, mapaipi, mafirimu nemashiti, tambo, mota, kuvaka, hutano, kudzivirira, uye mitambo nekuzorora. TPU inozivikanwa seyakasvibira uye ine hushamwari mhando nyowani yepolymer zvinhu zvine mashandiro akanaka. Parizvino, TPU inonyanya kushandiswa mukushandiswa kwakaderera, nepo kushandiswa kwepamusoro-soro kune mamwe makambani emarudzi akawanda, kusanganisira Bayer yeGermany neBASF, uye United States 'Lubrizol naHuntsman, vari kuwedzera tsvakurudzo yavo nekuvandudza kuedza kwezvigadzirwa zvitsva. High kukosha-yakawedzerwa TPU zvigadzirwa zvinogara zvichigadzirwa uye kuiswa mumusika, uye TPU zvinhu zvave chimwe chezvinhu zvinokurumidza kukura zve thermoplastic.

• Footwear: sports shoe logos, sports shoe air cushions, hiking shoes, snow boots, golf shoes, ice skates, uye machira uye lining materials.
• Zvipfeko: ski jackets, raincoats, windbreaker, majasi asingatonhore, yunifomu yemunda, diapers, physiological pants, uye machira akaumbwa zvinhu (zvisingapindi mvura uye zvinofema).
• Chiremba: hembe dzekuvhiya, ngowani, shangu, mapedhi emuchipatara, mabhegi echando, mabhandeji, mabhegi eplasma, mabhandiji ekuvhiya, masiki, uye machira uye zvinhu zvekuisa, mabhegi emubhedha ekuvhiya.
• Zvigadzirwa zvekudzivirira: matangi emafuta endege, mafirimu ekuchengetera zvombo, mahwindo ematende, mabhegi emvura ehondo, mabhachi ehupenyu, mabhoti anofefetera, uye machira nemidziyo yekumisikidza, mabhegi emhepo.
• Midziyo yemitambo: nzvimbo dzenhabvu uye machubhu emukati, mibhedha inofefetera, mabhegi emvura, magirovhosi eski (mabhegi asingapindi mvura), masutu ekudhibha, majaketi okutsvedza, sutu dzekushambira, skis, logos, airbag, hembe dzemitambo, hembe dzinorevesa, uye machira nemidziyo yekupfeka.
• Zvigadzirwa zvemaindasitiri: mutauri chigubhu pepa rabha mipendero, mitsetse isingapindi mvura, zvigadziriso zvinonzwika, zvinhu zvisingapinde moto, zvipfeko zvisingapindi moto, machira asingapindire moto, uye jira uye lining composite zvinhu, waya uye tambo yekunze sheath zvinhu.
• Zvimwe zvinoshandiswa: makiyi enharembozha, matoyi epurasitiki anofembera, machira emubhedha, machira epatafura, maketeni ekugeza, machira efenicha, maapuroni, piano, kiyibhodhi yekombuta, mabhaisikopo, uye machira nemidziyo yekuisa.