iindaba

1. Amandla okuqina
Amandla e-tensile lolona xinzelelo luphezulu lwezinto ezinokumelana nazo ngaphambi kokuba zolule. Ezinye izinto ezingasebenziyo zikhubaza ngaphambi kokugqabhuka, kodwaKevlar® (aramid) iifibers, iifibers zekhabhoni, kunye ne-E-glass fibers ziethe-ethe kwaye ziyagqabhuka kwaye aziguquki kangako. Amandla okuqina alinganiswa njengamandla kwindawo nganye yeyunithi (Pa okanye iiPascals).

2. Ukuxinana kunye namandla-to-Weight Ratio
Xa kuthelekiswa ukuxinana kwezinto ezithathu, umahluko obalulekileyo kwimicu emithathu unokubonwa. Ukuba iisampulu ezintathu zobukhulu obufanayo kunye nobunzima zenziwe, ngokukhawuleza kuyacaca ukuba iifiber ze-Kevlar® zikhaphukhaphu kakhulu, kunye ne-carbon fibers umzuzwana kwaye.Iifiber ze-E-glassolona lunzima.

3. Imodyuli yabaselula
Imodyuli yeYoung ngumlinganiselo wokuqina kwe-elastic material kwaye yindlela yokuchaza imathiriyeli. Ichazwa njengomlinganiselo we-uniaxial (kwicala elinye) uxinzelelo kwi-uniaxial strain (i-deformation kwicala elifanayo). Imodyuli encinci = uxinzelelo / uxinzelelo, okuthetha ukuba izixhobo ezinemodyuli ephezulu ye-Young's iqinile kunezo zinemodyuli ephantsi ye-Young.
Ukuqina kwe-carbon fiber, i-Kevlar®, kunye ne-glass fiber iyahluka kakhulu. Ifayibha yeCarbon iqine ngokuphindwe kabini kuneentsinga ze-aramid kwaye iqine ngokuphindwe kahlanu kuneentsinga zeglasi. Icala elisezantsi lokuqina okugqwesileyo kwe-carbon fiber kukuba ithande ukuba brittle ngakumbi. Xa isilela, ityekele ekuboniseni ubunzima okanye i-deformation.

4. Ukutsha kunye nokuthotywa kwe-thermal
Zombini i-Kevlar® kunye ne-carbon fiber zixhathisa kumaqondo okushisa aphezulu, kwaye akukho ndawo yokunyibilika. Zomibini izinto ezisetyenzisiweyo zisetyenzisiwe kwiimpahla ezikhuselayo kunye neempahla ezichasene nomlilo. I-Fiberglass iya kunyibilika ekugqibeleni, kodwa ikwaxhathisa kakhulu kumaqondo obushushu aphezulu. Kakade ke, imicu yeglasi ekhenkcezayo esetyenziswa kwizakhiwo inokonyusa ukumelana nomlilo.
I-carbon fiber kunye ne-Kevlar® zisetyenziselwa ukwenza izixhobo zokucima umlilo ezikhuselekileyo okanye iingubo ze-welding okanye iimpahla. iiglavu ze-kevlar zihlala zisetyenziswa kwishishini lenyama ukukhusela izandla xa usebenzisa iimela. Ekubeni iifibers azifane zisetyenziswe ngokwazo, ukuxhathisa ukushisa kwe-matrix (ngokuqhelekileyo i-epoxy) nayo ibalulekile. Xa ishushu, i-epoxy resin ithambile ngokukhawuleza.

5. Ukuqhuba koMbane
I-Carbon fiber iqhuba umbane, kodwa i-Kevlar® kunyei-fiberglassmusa.I-Kevlar® isetyenziselwa ukutsala iingcingo kwiinqaba zothumelo. Nangona ingawuhambisi mbane, ifunxa amanzi kwaye amanzi ayawenza umbane. Ngoko ke, i-coating engangeni manzi kufuneka ifakwe kwi-Kevlar kwizicelo ezinjalo.

6. Ukuthotywa kwe-UV
Imicu yeAramidiya kuthotywa ekukhanyeni kwelanga kunye ne-UV ephezulu. Iifayibha zekhabhoni okanye zeglasi azinachuku kakhulu kwimitha ye-UV. Nangona kunjalo, ezinye iimatrices eziqhelekileyo ezifana ne-epoxy resins zigcinwa ekukhanyeni kwelanga apho ziya kuba mhlophe kwaye zilahlekelwe amandla. I-polyester kunye ne-vinyl ester resins ziyakwazi ukumelana ne-UV, kodwa zibuthathaka kuneepoxy resins.

7. Ukumelana nokudinwa
Ukuba inxalenye igobile ngokuphindaphindiweyo kwaye iqondiswe, ekugqibeleni iya kusilela ngenxa yokudinwa.I-carbon fiberinobuntununtunu ekudinweni kwaye ithande ukusilela ngokuyintlekele, ngelixa i-Kevlar® ikwazi ukumelana nokudinwa. I-Fiberglass yindawo ethile phakathi.

8. Ukuxhathisa i-abrasion
I-Kevlar® ixhathisa kakhulu kwi-abrasion, eyenza kube nzima ukuyisika, kwaye enye yeendlela eziqhelekileyo zokusetyenziswa kwe-Kevlar® ifana neglavu zokukhusela kwiindawo apho izandla zinokusikwa ngeglasi okanye apho kusetyenziswa iiblade ezibukhali. Iifiber zekhabhoni kunye neglasi azinyangeki kangako.

9. Ukumelana neekhemikhali
Imicu yeAramidzinovakalelo kwiiasidi ezomeleleyo, iziseko kunye nee-oxidizing agents ezithile (umzekelo, i-sodium hypochlorite), enokubangela ukuthotywa kwefayibha. Iblitshi yeklorine eqhelekileyo (umz. iClorox®) kunye nehydrogen peroxide ayinakusetyenziswa kunye neKevlar®. Iblitshi yeoksijini (umz. i-sodium perborate) ingasetyenziswa ngaphandle kokonakalisa imicu ye-aramid.

10. Iimpawu zokudibanisa umzimba
Ukuze i-carbon fibers, i-Kevlar® kunye neglasi isebenze ngokufanelekileyo, kufuneka igcinwe kwindawo ye-matrix (ngokuqhelekileyo i-epoxy resin). Ke ngoko, ukukwazi kwe-epoxy ukubopha kwiintsinga ezahlukeneyo kubalulekile.
Zombini ikhabhoni kunyeimicu yeglasiinokunamathela ngokulula kwi-epoxy, kodwa i-aramid fibre-epoxy bond ayinamandla njengoko ifunwa, kwaye oku kuncitshiswa kokuncamathela kuvumela ukungena kwamanzi ukuba kwenzeke. Ngenxa yoko, ukukhululeka kwe-aramid fibers inokuthatha amanzi, idibaniswe nokunamathela okungafunekiyo kwi-epoxy, kuthetha ukuba ukuba ubuso be-composite ye-kevlar® bonakaliswe kwaye amanzi angangena, ngoko ke i-Kevlar® inokuthatha amanzi kunye ne-fibers kwaye iyancipha i-composite.

11. Umbala kunye nokwaluka
I-Aramid yigolide ekhanyayo kwimeko yayo yendalo, inokuba nemibala kwaye ngoku iza kwii-shades ezininzi ezintle. I-Fiberglass nayo iza kwiinguqulelo ezinemibala.I-carbon fiberisoloko imnyama kwaye inokudityaniswa ne-aramid enemibala, kodwa ayinakuba nemibala ngokwayo.