Vim li cas TPU thiab CPU Prepolymers siv sib txawv hauv Casting?
Polyurethane prepolymercasting tuaj yeem muab faib ua ob hom loj raws li cov khoom siv: Thermoplastic Polyurethane (TPU) thiab Castable Polyurethane (CPU). Txawm hais tias ob qho tib si los ntawm polyurethane prepolymers, lawv txoj kev ua thiab cov khoom ua tau zoo sib txawv.
TPU casting suav nrog cua sov thermoplastic polyurethane mus rau lub xeev molten thiab ncuav nws mus rau hauv pwm, qhov uas nws solidifies thaum txias. Cov khoom yog hloov tau, elastic, thiab resistant rau puas, cuam tshuam, thiab ntau yam tshuaj. Cov khoom no ua rau TPU haum rau cov khoom xws li cov log mos, cov ntsaws ruaj ruaj, gaskets, thiab lwm yam hloov tau. Cov txheej txheem thermoplastic ntawm TPU tso cai rau qee qhov rov ua dua lossis hloov kho thaum lub sijhawm tsim khoom, tab sis ceev faj qhov kub thiab txias pwm yog tsim nyog los tiv thaiv kev degradation thiab tswj kom zoo ib yam.
CPU casting, ntawm qhov tod tes, siv reactive, thermosetting prepolymers uas kho cov tshuaj hauv pwm. Thaum kho tau, CPU tsis tuaj yeem rov ua dua. Cov txheej txheem ntawm CPU tuaj yeem raug kho kom raug los tswj cov tawv tawv, elasticity, thiab lwm yam khoom siv kho tshuab, ua rau nws zoo tagnrho rau siab -load daim ntaub ntawv xws li kev lag luam chais, bushings, pads, thiab structural Cheebtsam. CPU kuj tso cai rau cov duab nyuaj thiab cov ntsiab lus zoo, thiab nws tuaj yeem sib raug zoo rau cov khoom siv ntxig, uas yog qhov tseem ceeb rau cov khoom ruaj khov thiab meej.
Qhov kev xaiv ntawm TPU thiab CPU hauv prepolymer casting yog ze ze rau daim ntawv thov, nrog rau cov yam ntxwv xws li yoog raws, hardness, hnav tsis kam, thiab qhov xav tau ntawm qhov ruaj khov. Txhua lub kaw lus muaj qhov zoo sib txawv nyob ntawm seb qhov kev xav tau tshwj xeeb ntawm cov khoom thiab cov txheej txheem tsim khoom, tsim cov khoom siv polyurethane li cas tsim thiab tsim.