Yintoni Umahluko phakathi kwe-Silicone Rubber kunye ne-EPDM?

Xa ukhetha irabha ukuba isetyenziswe, iiNjineli ezininzi ziphela zifuna ukwenza ukhetho phakathi kokukhetha i-silicone okanye i-EPDM. Ngokucacileyo sinokhetho lwe-silicone (!) kodwa zidibana njani ezi zimbini? Yintoni i-EPDM kwaye ukuba ufumanisa ukuba ufuna ukukhetha phakathi kwezi zibini, unquma njani? Nantsi isikhokelo sethu somlilo okhawulezayo kwi-EPDM…

 

Yintoni i-EPDM?

I-EPDM imele i-Ethylene Propylene Diene Monomers kwaye luhlobo lwerabha yokwenziwa koxinaniso oluphezulu. Ayikwazi ukumelana nobushushu njenge-silicone kodwa iyakwazi ukumelana nobushushu obuphezulu ukuya kutsho kwi-130°C. Kungenxa yoko le nto isetyenziswa njengenxalenye phakathi kwamashishini ahlukeneyo abandakanya ishishini, ulwakhiwo kunye neemoto. Kumaqondo obushushu asezantsi, i-EPDM iya kufikelela kwi-brittle point kwi-40°C.

I-EPDM ikwadume njengerabha yangaphandle njengoko ixhathisa kwimozulu equka ukuxhathisa kweasidi kunye nealkali. Ngaloo ndlela, uya kuyifumana isetyenziselwa izinto ezifana nefestile kunye nezitywina zomnyango okanye amashiti okuthintela amanzi.

I-EPDM ikwanayo ne-abrasion elungileyo, ukukhula kokusika kunye nokumelana nokukrazula.

 

Yintoni enye enokunika i-silicone?
Ngelixa i-silicone kunye ne-EPDM zabelana ngenani leempawu ezifana nokuchasana okubalaseleyo kokusingqongileyo, kukwakho nenani leyantlukwano ebalulekileyo kwaye kubalulekile ukuvuma oku xa usenza izigqibo zakho zokuthenga.

I-Silicone ngumxube we-carbon, i-hydrogen, i-oksijini kunye ne-silicone kwaye lo mxube unika inani leenzuzo ezingenayo i-EPDM. I-Silicone ikwazi ukumelana nobushushu, ikwazi ukumelana namaqondo obushushu ukuya kuthi ga kwi-230°C ngelixa igcina iimpawu zayo zomzimba. Ngaphezu koko, ikwayi-elastomer eyinyumba kwaye ithandwa kakhulu kumashishini okutya nesiselo. Kwiqondo lobushushu elisezantsi i-silicone nayo idlula i-EPDM kwaye ayiyi kufikelela kwindawo enqabileyo de -60 ° C.

I-Silicone nayo i-stretchier kwaye inika ubude obuninzi kune-EPDM. Isenokwenziwa ukuba ikwazi ukumelana neenyembezi njenge-EPDM. Yomibini le miba iyenza ilungele ukusetyenziswa njengeembrane zokufunxa koomatshini abasetyenziselwa ukuvelisa iiphaneli zelanga kunye nefanitshala elaminethiweyo, edla ngokubizwa ngokuba ngoomatshini bokwenza ivacuum.

I-Silicone yi-elastomer ezinzileyo kwaye ngenxa yoko abathengi bavakalelwa kukuba i-silicone ingcono njengesisombululo esikhuselekileyo sexesha elide ngenxa yoku. Nangona i-silicone ibonwa njengeyona nto ibiza kakhulu, ixesha lokuphila le-EPDM lihlala lifutshane kune-silicone kwaye ngoko ke kufuneka litshintshwe kwisicelo rhoqo. Oku kubangela iindleko zexesha elide ezidlula i-silicone.

Ekugqibeleni, ngelixa zombini i-EPDM kunye ne-silicone iya kudumba xa ifakwe kwioli ixesha elide kumaqondo obushushu aphezulu, i-silicone inokumelana neoli yokutya kwiqondo lokushisa elingaphakathi, yingakho isetyenziselwa ukucutshungulwa kweoli yokutya njengamatywina kunye ne-gaskets yokucubungula oomatshini.

 

Indlela yokukhetha phakathi kwezi zibini?
Ngelixa esi sikhokelo sifutshane sishwankathela nje ezinye zeeyantlukwano phakathi kwezi zimbini eyona ndlela ingcono yokumisela ukuba yeyiphi irabha oyifunayo kukuqonda injongo yokusetyenziswa kunye nesicelo esichanekileyo. Ukuchonga indlela oya kufuna ukuyisebenzisa ngayo, yeyiphi imiqathango eya kuxhomekeka kuyo kunye nendlela ofuna ukuyenza ngayo kuya kukuvumela ukuba ube nombono ocacileyo malunga nokuba yeyiphi irabha onokuyikhetha.

Kwakhona, qiniseka ukuba uqwalasela imiba efana namandla, ukuguquguquka kunye nobunzima bezinto eziya kufuneka zixhathise njengoko ezi zinokuba zizinto ezibalulekileyo zokwenza izigqibo. Xa unalo lwazi isikhokelo sethu esibanzi kwi-Silicone Rubber vs EPDM sinokukunika ulwazi olunzulu olufunekayo ukuze wenze isigqibo sakho sokugqibela.

Ukuba ungathanda ukuxoxa ngeemfuno zeprojekthi yakho nomnye weqela lethu ke umntu usoloko ekhona. Qhagamshelana nathi.