I-Aramid Fiber Enamandla Aphezulu kanye Nokushisa Okuhle Kakhulu/Ukumelana Nomlilo
I-KEVLAR® (Para aramids)
Ama-Para aramids -afana ne-Kevlar®- aziwa ngamandla awo aphezulu amangalisayo kanye nokumelana nokushisa/ ilangabi elihle kakhulu.Izinga eliphakeme lokucwebezela kwemicu yisici esingokomzimba esiyinhloko esidlulisela la mandla amahle kakhulu ngaphambi kokuphuka.
I-Meta-Aramid (Nomex®)
I-Meta aramids iyinhlobonhlobo ye-polyamide enokumelana nokushisa/ ilangabi okuvelele.Banokumelana okuhle kakhulu nokuhuzuka kanye nokumelana nokuwohloka kwamakhemikhali.
| I-Meta-Aramid | I-Standard Tenacity Para-Aramid | High Modulus Para-Aramid | ||
| Usayizi wefilament ojwayelekile (dpf) | 2 | 1.5 | 1.5 | |
| I-Gravity ethize (g/cm3) | 1.38 | 1.44 | 1.44 | |
| I-Tenacity (gpd) | 4-5 | 20-25 | 22-26 | |
| I-Modulus yokuqala (g/dn) | 80-140 | 500-750 | 800-1000 | |
| Ubude @ Ikhefu (%) | 15-30 | 3-5 | 2-4 | |
| Ukusebenza Okuqhubekayo Izinga lokushisa (F) | 400 | 375 | 375 | |
| Ukubola Izinga lokushisa (F) | 750 | 800-900 | 800-900 | |
incazelo yomkhiqizo
Ngokungafani nezinye izinto kanye nemicu, lokho kungase kudinge ukumbozwa nokuqedwa ukuze kuthuthukiswe ukushisa kanye/noma ukuvikela ilangabi, imicu ye-Kevlar® kanye ne-Nomex® ngokwemvelo imelana nelangabi futhi ngeke inyibilike, iconse, noma isekele ukuvutha.Ngamanye amazwi, isivikelo esishisayo esinikezwa yi-Kevlar® ne-Nomex® singunaphakade - ukumelana kwayo nelangabi okuphakeme akukwazi ukugezwa noma kuguge.Izinto okufanele zilashwe, ukuze kuthuthukiswe ukusebenza kwazo ukumelana nomlilo (nokuthi isivikelo sazo singancipha ngokuchayeka kokuwasha nokuguga) zaziwa ngokuthi “izinqamuli zomlilo.”Lawo anokuvikelwa kwemvelo okuphakeme nokuhlala unomphela (okungukuthi, i-Kevlar®, i-Nomex®, njll.) kubhekiselwa kukho ngokuthi “ukumelana nomlilo.”
Leli khono eliphakeme lokumelana nokushisa nokukwazi ukumelana nelangabi livumela le micu - kanye nezindwangu ezikhiqizwe kuzo - ukuthi ihlangabezane namazinga amaningi embonini wezinga elingenakuqhathaniswa nezinye izinto.
Yomibili imicu isetshenziswa (ngokuzimela futhi ihlangene) emikhiqizweni eminingi emikhakheni efana nale:
- Ukucima umlilo
- Ukuzivikela
- Ukubumba Nokuncibilikisa
- Ukushisela
- Ezogesi Nezisetshenziswayo
- Izimayini
- Umjaho
- I-Aerospace ne-Outer Space
- Ukucwenga kanye Chemical
- Nabanye abaningi
Njengawo wonke ama-fibers asebenza kahle kakhulu, kokubili i-Nomex® ne-Kevlar® inobuthakathaka nokulinganiselwa kwayo.Isibonelo, kokubili ekugcineni kuzokwehliswa ekusebenzeni nasembalani, ngokuchayeka isikhathi eside ekukhanyeni kwe-UV.Ukwengeza, njengama-porous materials, azomunca amanzi/umswakama, futhi azothola isisindo njengoba ethatha amanzi.Ngakho-ke, lapho uhlola i(ama)fayibha kuhlelo lokusebenza oluthile, kubalulekile ngaso sonke isikhathi ukucabangela zonke izenzo ezingaba khona, indawo, kanye nobude besikhathi umkhiqizo wokugcina ozovezwa kukho.