Tsanangudzo Pfupi:

Zvakanakira uye zvisingabatsiri zvePDM hose: kuchembera kuramba, kuvharwa kwemagetsi uye kupikisa ozone kwakatanhamara.Yakanakisa kuramba kwemamiriro ekunze, ozone kuramba, kupisa kupisa, asidhi uye alkali kuramba, mhute yemvura kuramba, kugadzikana kwemavara, zvivakwa zvemagetsi, zvimiro zvekuzadza mafuta uye tembiricha yekamuri.Detergents, mhuka nemafuta emiriwo, ketoni uye magirisi zvose zvine kumira zvakanaka;asi vane kusagadzikana kwakashata mumafuta uye zvinonyungudutsa zvinonhuhwirira (sepeturu, benzene, nezvimwewo) nemafuta emamineral.Pasi pechiito chenguva refu cheiyo yakanyungudutswa asidhi, kuita kunozodzikisawo mhute yemvura uye inofungidzirwa kuve iri nani pane kupisa kwayo.Mu230 ℃ superheated steam, hapana shanduko muchitarisiko mushure menguva ingangoita 100h.Asi pasi pemamiriro akafanana, rabha yefluorine, silicon rabha, fluorine silicon rabha, butyl rabha, nitrile rabha, uye rabha rechisikigo zvakaona kuderera kuri pachena pakuonekwa mushure menguva pfupi.Nekuti hapana polar inotsiva mune molecular chimiro cheethylene-propylene rubber, iyo yakabatana simba remorekuru yakaderera, uye cheni yemamorekuru inogona kuchengetedza kuchinjika muhupamhi, yechipiri chete kune yakasikwa rubber uye butadiene rubber, uye inogona kuramba iripo. inochengetedzwa pakudziya kwakaderera.Ethylene-propylene rabha inoshaya mapoka anoshingaira nekuda kwechimiro chayo chemolecular, ine simba rakaderera rakabatana, uye rabha iri nyore kutumbuka, uye kunamatira kwayo uye kubatana kwayo kune urombo.