Polyurethane elastomers e aofia i le poloka polymers, o lona uiga, polyurethane macromolecules e aofia ai "vaega vaivai" ma "vaega faigata" ma fausia ai se fausaga tuueseese vaega laiti.O vaega faigata (e maua mai i le isocyanates ma le au fa'alautele filifili) o lo'o fa'asalalauina i le vaega vaivai vaega vaega vaega (e maua mai i le oligomer polyols) ma fa'atino le vaega o mea fa'afeso'ota'i tino.O le mea lea, pe a faʻatusatusa i isi paʻu faʻapipiʻi (elastomers), polyurethane elastomers e sili atu le malosi ma ofuina le teteʻe, E mafai lava ona tausia le maualuga maualuga pe a maualuga le maaa.
Elastic polyurethane meafaitino, e taʻua o le "mataupu" i atunuu ese, e masani lava e aofia ai oloa polyurethane elastomer masani, auala palasitika polyurethane ma isi mea laupapa, polyurethane coatings e le susu, pipii, sealants, potting adhesives, ma isi, faʻamaumauga mo le 40% o le aofaiga atoa o oloa polyurethane.O le tele o oloa fa'amālōlōina o mea fa'apipi'i (mea e fa'avae vai ma fa'asusu e aveese vai ma solvents) o mea e le foam elastic polyurethane.PU pa'u pa'u synthetic resin, o nisi coatings ma adhesives o solvent-faʻavae poʻo oloa aqueous, lea e mafai foi ona taʻua o mea polyurethane elastomer i se uiga lautele.I se uiga vaapiapi, polyurethane elastomer e faasino i lafo polyurethane elastomer (CPU), thermoplastic polyurethane elastomer (TPU) ma fefiloi polyurethane elastomer (MPU), faʻamauina mo le 10% pe laʻititi laʻititi o le aofaʻi polyurethane.PPU ma TPU o le polyurethane elastomers autu, ma o latou eseesega o loʻo taoto i mea taua e pei o le gaosiga o le gaosiga ma le faʻalauteleina o filifili.O lenei ituaiga polyurethane elastomer masani, e lauiloa foi o le "polyurethane rubber", e patino i se ituaiga paʻu faʻapitoa.High performance polyurethane elastomer o le mea e sili ona lelei le ofuina i totonu o mea faʻapipiʻi polymer uma.E lauiloa o le "tupu o le ofuina o le tetee".O lo'o fa'aaogaina lautele i le tele o fa'alapotopotoga, ma o lo'o fa'alauteleina pea fa'aoga fou.
Polyurethane elastomers e mafai ona faʻaaogaina e sui ai metala, palasitika ma paʻu masani i nisi o fanua.
Pe a faatusatusa i mea uʻamea, polyurethane elastomer o loʻo i ai le lelei o le mamafa o le mamafa, maualalo le pisa, gau le teteʻe, maualalo tau gaosiga ma le faʻamaʻiina o le acid.Pe a faʻatusatusa i palasitika, o loʻo i ai le lelei o le maualuga o le malosi ma le maualuga o le ofuina.Pe a faʻatusatusa i le paʻu masani, o le polyurethane elastomer o loʻo i ai le lelei o le ofuina o le teteʻe, tipi le teteʻe, loimata, maualuga le gafatia, osone teteʻe, gaosiga faigofie, ipu ma sasaa, ma le lautele lautele lautele.
Polyurethane elastomer o se ituaiga taua o polyurethane.I le taimi nei, o lona faʻaaogaina e tusa ma le 10% o le aofaʻi o le faʻaaogaina o le polyurethane.Polyurethane elastomer e faʻaaogaina e gaosia ai ituaiga uma o uili paʻu, fusipaʻu feʻaveaʻi, faʻauʻu paʻu faʻafefe vai ma mamafa, faʻamau faʻamau ma mama, faʻalava uaea ma ata tifaga eseese.O oloa e faʻaaogaina lautele i uʻamea ma uʻamea, fai pepa, mining, masini, lomitusi ma isi pisinisi.Polyurethane elastomer e mafai ona faʻaleleia e isi polymers, fiber, paʻu paʻu, ma isi mea e faʻaitiitia ai le tau ma faʻaleleia le faʻatinoga.
Taimi meli: Me-05-2022