labarai

1.Aramid fiber kayan aiki

Cikakken sunan fiber aramid shine fiber polyamide aromatic.Polymer mai layi ne wanda ya ƙunshi ƙungiyoyin aromatic da ƙungiyoyin amide.Yana da kyawawan kaddarorin inji, barga tsarin sinadarai, ingantattun kaddarorin inji, ultra-high ƙarfi da modules mai girma., high zafin jiki juriya, acid da alkali juriya, haske nauyi, sa juriya da sauran kyau kwarai Properties.An yi amfani da shi sosai a fannoni kamar kayan kariya na harsashi, sararin samaniya, gini da kayan lantarki.

Koyaya, fiber aramid shima yana da babban lahani guda biyu

(1) Aramid fiber yana da ƙarancin juriya na UV.Ultraviolet radiation (hasken rana) yana haifar da lalacewa na filaye na aramid.Sabili da haka, ana buƙatar kariya mai kariya, wanda zai iya zama kayan ado ko kayan ado, alal misali, zaren aramid sau da yawa ana rufe su a cikin kariya mai kariya.

(2) Aramid fiber yana da ingantacciyar hygroscopicity (har zuwa 6% na nauyinsa), don haka kayan haɗin fiber na aramid suna buƙatar kiyaye su da kyau, kamar su kayan kwalliyar kwalliya galibi ana amfani da su don rage hygroscopicity.Bugu da ƙari, yin amfani da wasu nau'in aramid yana rage shayar da ruwa na hadaddiyar giyar idan aka fallasa shi ga ruwa, kamar Kevlar 149 ko Armos.

2.PE fiber kayan aiki

PE a zahiri yana nufin UHMW-PE, wanda shine polyethylene mai nauyin ultra-high na kwayoyin.Fiber ce mai fa'ida mai ƙarfi da aka haɓaka a farkon 1980s.Tare da carbon fiber da aramid, an san shi da manyan manyan filayen fasaha guda uku a duniya a yau.Yana da babban kwanciyar hankali kuma yana da matuƙar wahala a ƙasƙanta, yana haifar da mummunar gurɓatar muhalli.Amma daidai ne saboda wannan sifa ya zama kayan aiki mai kyau don yin makamai na jiki.Bugu da ƙari, yana da juriya ga ƙananan zafin jiki, hasken UV, da ruwa.

Dangane da hana ƙananan harsasai masu saurin gudu, aikin bulletproof na PE fiber yana da kusan 30% sama da na aramid;dangane da hana harsasai masu sauri, aikin PE fiber shine sau 1.5 zuwa 2 na aramid.Ana iya cewa gazawar fiber aramid ya zama fa'idodin fiber na PE, kuma fa'idodin fiber aramid sun zama mafi kyau akan fiber PE.Sabili da haka, yanayi ne da ba makawa don PE fiber don maye gurbin aramid a fagen kariya.

Tabbas, fiber na PE shima yana da gazawa.Matsayinsa na juriya na zafin jiki ya fi ƙasa da fiber aramid.Amfani da zafin jiki na samfuran kariyar fiber na PE yana cikin 70 ° C (wanda zai iya biyan bukatun jikin mutum da kayan aiki, wato, buƙatar juriya na zafin jiki na 55 ° C).Bayan wannan zafin jiki, aikin yana raguwa da sauri.Lokacin da zafin jiki ya wuce 150 ° C, fiber na PE zai narke, kuma fiber aramid fiber na iya ci gaba da kula da kyawawan kaddarorin kariya a cikin yanayin 200 ° C, kuma baya narke ko rushewa a 500 ° C;lokacin da aka haɗu da yanayin zafi sama da 900 ° C, za a yi carbonized kai tsaye don samar da Layer rufin zafi.Waɗannan ba su samuwa a cikin samfuran kariyar fiber na PE kuma sun zama fa'idodi na musamman na samfuran aramid.