CovPolyurethane Elastomerkuj muaj ntau lwm yam khoom.
1.9 Cov khoom siv hluav taws xob
Cov hluav taws xob rwb thaiv tsev kev ua tau zoo ntawm polyurethane elastomer yog qhov zoo ntawm qhov kub thiab txias, sib npaug rau qib ntawm chloroprene roj hmab thiab phenolic resin. Vim tias nws tuaj yeem ua tau ob qho tib si cam khwb cia thiab thermoformed, nws feem ntau yog siv los ua cov khoom siv rau potting hluav taws xob cov khoom thiab cable sheathing. Vim nws qhov loj molecular polarity thiab affinity rau dej, polyurethane elastomer cov khoom hluav taws xob hloov tau zoo heev nrog qhov kub thiab txias, thiab nws tsis haum rau kev siv cov khoom siv hluav taws xob ntau zaus. Tsis tas li ntawd, cov khoom siv hluav taws xob ntawm polyurethane elastomers txo qis nrog qhov kub thiab nce nrog cov hardness ntawm cov khoom.
1.10 Radiation kuj ua tau zoo
Ntawm cov khoom siv hluavtaws polymer, polyurethane elastomers muaj kev tiv thaiv zoo rau lub zog hluav taws xob. Nws tseem muaj qhov ua tau zoo txaus nyob rau hauv cov koob tshuaj hluav taws xob ntawm 105-106Gy. Txawm li cas los xij, lub teeb xim lossis pob tshab elastomers yuav raug hloov xim raws li qhov kev txiav txim ntawm cov duab hluav taws xob, uas zoo ib yam li qhov tshwm sim tau pom thaum huab cua kub los yog atmospheric aging tests.
1.11 Cov kab mob fungal
Cov pwm tsis kam ntawm polyether polyurethane yog qhov zoo nkauj, thiab qib kev xeem yog {{0}}, uas txhais tau tias tsis muaj pwm loj hlob. Txawm li cas los xij, polyester polyurethane tsis tiv taus pwm, thiab cov txiaj ntsig kev sim qhia pom tias muaj pwm loj tuaj. Nws tsis haum rau siv sab nraum zoov hauv thaj chaw sov thiab subtropical thiab khaws cia hauv qhov kub thiab txias. Polyester polyurethane elastomers siv sab nraum zoov thiab hauv qhov chaw kub thiab av noo yuav tsum ntxiv cov tshuaj tua kab mob (xws li tooj liab octahydroxyquinoline, BCM, thiab lwm yam., feem ntau ntawm 0.1% -0.5%) hauv cov mis los txhim kho lawv cov khoom tiv thaiv kab mob. . .
1.12 Biomedical Properties
Cov ntaub ntawv polyurethane muaj biocompatibility zoo heev. Kev kuaj mob hnyav thiab mob ntev thiab kuaj tsiaj txhu tau lees paub tias cov ntaub ntawv kho mob polyurethane tsis muaj tshuaj lom, tsis muaj kev cuam tshuam, tsis muaj kev fab tshuaj, tsis muaj kev khaus hauv zos, thiab tsis muaj pyrogen. Lawv yog cov muaj nqis tshaj plaws. Ib qho ntawm cov khoom siv kho mob hluavtaws polymer.