ʻO ka Fiber Aramid me ka ikaika kiʻekiʻe a me ke kūpaʻa wela / ahi maikaʻi loa
KEVLAR® (Para aramids)
ʻIke ʻia nā para aramids -e like me Kevlar®- no ko lākou ikaika kiʻekiʻe kiʻekiʻe a me ke kūpaʻa wela / ahi maikaʻi loa.ʻO ke kūlana kiʻekiʻe o ka crystallinity o nā fibers ke ʻano kino kino nui e hoʻololi i kēia ikaika maikaʻi ma mua o ka haki ʻana.
Meta-Aramid (Nomex®)
ʻO nā meta aramids he ʻano polyamide i loaʻa i ka wela a me ke ahi.Loaʻa iā lākou ke kūpaʻa abrasion maikaʻi loa a me ke kūʻē ʻana i ka degradation kemika.
| Meta-Aramida | Nā Kūlana Kūlana Para-Aramid | High Modulus Para-Aramid | ||
| Nui filament maʻamau (dpf) | 2 | 1.5 | 1.5 | |
| Kaumaha kiko (g/cm3) | 1.38 | 1.44 | 1.44 | |
| ʻO ke kūpaʻa (gpd) | 4-5 | 20-25 | 22-26 | |
| Modulus mua (g/dn) | 80-140 | 500-750 | 800-1000 | |
| Elongation @ Haʻihaʻi (%) | 15-30 | 3-5 | 2-4 | |
| Hana mau Mahana (F) | 400 | 375 | 375 | |
| Ka palaho Mahana (F) | 750 | 800-900 | 800-900 | |
wehewehe huahana
ʻAʻole like me nā mea ʻē aʻe a me nā fibers, pono paha e koi i ka uhi a me ka hoʻopau ʻana e hoʻomaikaʻi i ko lākou wela a me / a i ʻole ka pale ahi, ʻo Kevlar® a me Nomex® fibers he kūpaʻa paʻa i ka lapalapa a ʻaʻole e hoʻoheheʻe, kulu, a kākoʻo i ka puhi ʻana.I nā huaʻōlelo ʻē aʻe, paʻa mau ka pale wela i hāʻawi ʻia e Kevlar® a me Nomex® - ʻaʻole hiki ke holoi ʻia a hoʻopau ʻia kona pale ʻana i ke ahi.ʻO nā mea pono e mālama ʻia, i mea e hoʻomaikaʻi ai i kā lākou hana pale ʻana i ke ahi (a e emi ana ka pale me ka holoi ʻana a me ka ʻaʻahu ʻana) ʻike ʻia ʻo "fire retardant."ʻO ka poʻe me ka ʻoi aku ka maikaʻi o ka mālama ʻana a mau loa (ʻo ia hoʻi, Kevlar®, Nomex®, a me nā mea ʻē aʻe) i kapa ʻia ʻo "pale ahi."
ʻO kēia ʻoi aku ka wela a me ka hiki ke pale i ka lapalapa e hiki ai i kēia mau fiber - a me nā textiles i hana ʻia mai ia mau mea - e hoʻokō i nā kūlana ʻoihana ʻoihana ʻoihana ʻaʻole hiki i nā mea ʻē aʻe.
Hoʻohana ʻia nā fiber ʻelua (kūʻokoʻa a hui pū ʻia) no kahi ākea o nā huahana ma nā kula e like me:
- Kapu ahi
- Palekana
- Ka hao a me ka hoohehee ana
- wiliwili
- Uila a me ka pono
- Ka mina
- heihei
- Aerospace a me waho
- Hoʻomaʻemaʻe a me ke Kimia
- A he nui na mea e ae
E like me nā fibers hana kiʻekiʻe, loaʻa iā Nomex® a me Kevlar® ko lākou nāwaliwali a me nā palena.No ka laʻana, e hoʻohaʻahaʻa ʻia nā mea ʻelua i ka hana a me ke kala, me ka lōʻihi o ka hōʻike ʻana i ke kukui UV.Eia kekahi, ma ke ʻano he mea porous, e hoʻopaʻa lākou i ka wai/makū, a e loaʻa ke kaumaha i ko lākou lawe ʻana i ka wai.No laila, i ka loiloi ʻana i kahi fiber (s) no kahi noi kikoʻī, he mea koʻikoʻi ka noʻonoʻo ʻana i nā hana āpau, nā kaiapuni, a me ka lōʻihi e hōʻike ʻia ai ka huahana hope.