Chii musiyano uripo pakatiTPUuye pu?
TPU (polyurethane Elasomer)
TPU (Thermoplastic Polyurethane Elasomer)ishoko remapurasitiki emapurasitiki. Nekuda kwekuita kwayo kugona, kupokana kwemamiriro ekunze, uye hushamwari hwezvakatipoteredza zvinoshandiswa zvakanyanya mumidziyo, mapaipi, mafirimu, marata, tambo, uye waya.
Polyurethane Thermplastic elasmer, zvakare anozivikanwa seTirmoplastic Polyurethane Rubber, yakajeka seTPU, rudzi rwe (AB) N-Block Linear Polymer. A iri yakakwirira smecular uremu (1000-6000) polyester kana polyether, uye b iri dioline ine 2-12 yakatwasuka carbon maatomu maatomu. Chemakesi chemakemikari pakati peAB zvikamu zvinoitwa, kazhinji zvakabatana neMDI.
Thermoplastic Polyurethane Rubber anovimba neyakafambidzana hydrogen yekubatanidza kana kunyoroveswa pakati pamaketeni eMacRomolecular, uye aya maCross-links ekubatanidza zvivakwa zvinoshandurwa kana kuderedza kupisa kana kudzora tembiricha. Mune yakanyungudutswa kana mhinduro yenyika, mauto ezvekuita anopera simba, uye mushure mekutonhora kana kupora everation, mauto akasimba anobatanidza pamwe chete, kudzoreredza zvivakwa zveiyo yekutanga yakasimba.
Polyurethane Thermoplastic elastomersinogona kuiswa mumhando mbiri: Polyester uye polyether, ine chena isina kujairika spherical kana columnar manhamba uye densiti ye110-1.25. Iyo polyether mhando ine yakaderera hama density kupfuura iyo polyester mhando. Iyo girazi transition tembiricha yemhando yePolyether ndeye 100.6-106.1 ℃, uye iyo yePolyester mhando ndeye 108.9-122.8 ℃. Tembiricha yeBrittle yePolyether Type uye Polyester mhando yakaderera pane -62 ℃, nepo yakaderera tembiricha yekudzikisira kweiyo yakaoma mhando iri nani pane iyo yemhando yePolyester mhando.
Hunhu hwakatanhamara hwePolyurethane Therlastics Elassomy vakanaka vakapfeka kupokana, kusasimba kwehukuru, simba rakanyanya, kuramba mafuta, kuramba makemikari, kuramba kwemakemikari, uye kuramba kwezvakatipoteredza. Munzvimbo dzakanyorovesa, iyo hydrolysis kusimba kwePolyether geners kure neiyo yemhando dzePolyester.
Polyurethane Thermoplastic Elassomers haana kujairika uye kusanzwisisika. Ivo vanoratidza vasina mavara uye pachena nyika uye vane yakanaka yekuchengetedza kugadzikana.
Kutumira Nguva: Kubvumbi-22-2024