Yintoni impahla ye-EPDM? -Uhlalutyo olunzulu lweempawu kunye nokusetyenziswa kwerabha ye-EPDM
I-EPDM (i-ethylene-propylene-diene monomer) yirabha yokwenziwa enemozulu egqwesileyo, i-ozone kunye nokumelana neekhemikhali, kwaye isetyenziswa ngokubanzi kwiimoto, ukwakhiwa, i-electronics kunye namanye amashishini. Ngaphambi kokuqonda ukuba yintoni i-EPDM eyenziwe ngayo, kuyimfuneko ukuqonda isakhiwo sayo esisodwa se-molecular kunye nenkqubo yokuvelisa ukuze uqonde kakuhle iimpawu kunye nokusetyenziswa kwayo.
1. Ukubunjwa kweekhemikhali kunye nesakhiwo se-molecular ye-EPDM
Irabha ye-EPDM ifumana igama layo kumacandelo ayo aphambili: i-ethylene, ipropylene kunye ne-diene monomers. Ezi monomers zenza amatyathanga e-elastic polymer ngokuphendula kwe-copolymerization. I-Ethylene kunye nepropylene zibonelela ngokugqwesileyo kobushushu kunye nokumelana ne-oxidation, ngelixa i-diene monomers ivumela i-EPDM ukuba idibanise i-vulcanisation okanye i-peroxide, ikhulise ngakumbi amandla kunye nokuqina kwezinto.
2. Iimpawu zokusebenza eziphambili ze-EPDM
Ngenxa yokwakheka kweekhemikhali ezikhethekileyo, i-EPDM inoluhlu lweepropati ezibalaseleyo ezenza ukuba zivelele kwiindawo ezininzi.EPDM inesimo sezulu esihle kakhulu kunye nokuchasana kwe-UV, oku kuthetha ukuba iyakwazi ukutshatyalaliswa kwilanga ixesha elide ngaphandle kokuwohloka.EPDM nayo inokumelana ne-ozone ebalaseleyo, evumela ukuba igcine ukusebenza kwayo kwiimeko ezinzima zokusingqongileyo ngaphandle kokuqhekeka.
Enye into ebalulekileyo kukuxhathisa kwayo kweekhemikhali, ngakumbi kwi-acids, i-alkalis kunye neentlobo ezahlukeneyo ze-solvents polar. Ngoko ke, i-EPDM isoloko isetyenziswa kwiimeko ezifuna ukuvezwa kwexesha elide kwiikhemikhali.EPDM ineendlela ezininzi zokushisa okusebenzayo, kwaye ngokuqhelekileyo iyakwazi ukusebenza ngokuqhelekileyo phakathi kwe-40 ° C kunye ne-150 ° C, eyenza ukuba isetyenziswe ngokubanzi kwishishini leemoto, ezifana nezitywina zefestile, i-radiator hoses, njl.
3. Izicelo ze-EPDM kumashishini ahlukeneyo
Ukusetyenziswa ngokubanzi kwe-EPDM kubalelwa kubuchule bayo obuhlukeneyo kunye neempawu ezibalaseleyo zomzimba. Kwishishini leemoto, i-EPDM isetyenziswa ngokuqhelekileyo ekwenzeni izitywina, izitywini zomnyango, iiwiper ze-windscreen kunye ne-radiator hoses. Ngombulelo kubushushu kunye nokumelana nokuguga, la macandelo agcina u-elasticity kunye nokusebenza ixesha elide, ukuphucula ubomi benkonzo yesithuthi.
Kwishishini lokwakha, i-EPDM isetyenziswa ngokubanzi kwi-roof-waterproofing, iminyango kunye neefestile zefestile kunye nezinye izicelo ezifuna ukukhuselwa kwamanzi kunye nokuchasana kwe-UV. Ukumelana kwayo nemozulu elungileyo kunye nokuguquguquka kuqinisekisa ukuzinza kwesakhiwo kunye nokusebenza kokutywinwa kwezakhiwo.EPDM iphinda isetyenziswe kwizinto zokugubungela iingcingo kunye neentambo, ezibonelela ngokugqwesileyo kokusebenza kombane kunye nokuxhathisa imichiza.
4. Ukhuseleko lwe-EPDM lokusingqongileyo kunye nophuhliso oluzinzileyo
Kwimeko yangoku yeemfuno ezingqongqo zokukhuselwa kokusingqongileyo, i-EPDM nayo ixhalabile ngenxa yokhuseleko lokusingqongileyo kunye namandla ophuhliso oluzinzileyo. I-EPDM yinto enokuphinda isetyenziswe, inkqubo yokuvelisa igesi enobungozi kunye nenkunkuma, ngokuhambelana nemfuno yoluntu yanamhlanje yokukhusela indalo. Ngophuculo oluqhubekayo lwenkqubo yokuvelisa, ukusetyenziswa kwamandla kunye nobutyebi be-EPDM nako kuncitshiswa ngokuthe ngcembe, igalelo kuphuhliso oluzinzileyo lweshishini.
Ukuqukumbela
Yintoni impahla ye-EPDM? Yimpahla yerabha eyenziweyo kunye nokusebenza okugqwesileyo kunye noluhlu olubanzi lwezicelo. Ngokumelana nemozulu, ukuchasana kweekhemikhali kunye nobuhlobo bendalo, idlala indima ebalulekileyo kumashishini ahlukeneyo. Nokuba kwishishini leemoto, ishishini lokwakha, okanye kumhlaba wombane kunye ne-elektroniki, i-EPDM iye yaba lukhetho oluyimfuneko ngenxa yokusebenza kwayo okugqwesileyo.