IFayibha yeAramid Enamandla aphezulu kunye nobushushu obugqwesileyo / ukuchasana nomlilo
KEVLAR® (Para aramids)
IiPara aramids-ezinje nge-Kevlar®- zaziwa ngokomelela kwazo okuphezulu kunye nobushushu obugqwesileyo / ukumelana nomlilo.Iqondo eliphezulu le-crystallinity ye-fibers luphawu oluphambili lomzimba oludlulisela la mandla abalaseleyo ngaphambi kokuphuka.
I-Meta-Aramid (Nomex®)
I-Meta aramids ziintlobo ngeentlobo zepolyamide ezinobushushu obubalaseleyo/nokumelana nomlilo.Banokumelana okugqwesileyo kwe-abrasion kunye nokuxhathisa ekuthotyweni kweekhemikhali.
| I-Meta-Aramid | I-Standard Tenacity Para-Aramid | IModulus ePhakamileyo iPara-Aramid | ||
| Ubungakanani bomcu oqhelekileyo (dpf) | 2 | 1.5 | 1.5 | |
| Ubunzima obuthile (g/cm3) | 1.38 | 1.44 | 1.44 | |
| Ukuqina (gpd) | 4-5 | 20-25 | 22-26 | |
| Imodyuli yokuqala (g/dn) | 80-140 | 500-750 | 800-1000 | |
| Elongation @ Break (%) | 15-30 | 3-5 | 2-4 | |
| Ukusebenza ngokuqhubekayo Iqondo lobushushu (F) | 400 | 375 | 375 | |
| Ukubola Iqondo lobushushu (F) | 750 | 800-900 | 800-900 | |
Ingcaciso yeMveliso
Ngokungafaniyo nezinye izinto kunye neefayibha, ezinokuthi zifune iingubo kunye nokugqiba ukunyusa ukushisa kunye / okanye ukukhuselwa komlilo, iifayili ze-Kevlar® kunye ne-Nomex® ziyi-resistant flame-resistant kwaye aziyi kunyibilika, zithontsize, okanye zixhase ukutsha.Ngamanye amazwi, ukukhuselwa kwe-thermal okunikezwa yi-Kevlar® kunye ne-Nomex® kusisigxina - ukumelana nomlilo ophakamileyo akukwazi ukuhlanjwa okanye ukuguga.Iimathiriyeli ekufuneka zinyangwe, ukuze kuphuculwe ukusebenza kwazo kokumelana nomlilo (kwaye ukhuseleko lwazo lunokuncipha ngokuhlanjwa kunye nokubonakala kokunxiba) zaziwa “njengento yokunqanda umlilo.”Abo banokhuseleko oluphezulu lwendalo kunye nolusisigxina (oko kukuthi, i-Kevlar®, iNomex®, njl.
Obu bushushu bugqwesileyo kunye namandla okumelana nomlilo kuvumela le misonto - kunye neempahla ezilukiweyo eziveliswe kuzo - ukuba zihlangabezane nemigangatho emininzi yoshishino lwemigangatho yeshishini ezinye izinto ezingenakho.
Zombini iintsinga zisetyenziswa (ngokuzimela kwaye ngokudityaniswa) kuluhlu olubanzi lweemveliso kwimimandla efana nale:
- Ukulwa umlilo
- Ukhuselo
- Ukubumba kunye nokunyibilikisa
- Ukuwelda
- Umbane kunye noncedo
- Ukwembiwa kwemigodi
- Umdyarho
- I-Aerospace kunye nendawo yangaphandle
- Ukusulungekiswa kunye neMichiza
- Kwaye abanye abaninzi
Njengazo zonke iifibers eziphezulu zokusebenza, zombini i-Nomex® kunye ne-Kevlar® inobuthakathaka kunye nokunciphisa.Umzekelo, zombini ziya kuthi ekugqibeleni zithobeke ekusebenzeni kunye nombala, kunye nokuvezwa ixesha elide kukukhanya kwe-UV.Ukongezelela, njengezinto eziphathekayo, baya kuthatha amanzi / umswakama, kwaye baya kufumana ubunzima njengoko bethatha amanzi.Ke ngoko, xa uvavanya i-fiber (s) kwisicelo esithile, kusoloko kubalulekile ukuthathela ingqalelo zonke iintshukumo ezinokubakho, indawo ezingqongileyo, kunye nobude bexesha apho imveliso yokugqibela iya kuvezwa.