izindaba

1. Amandla ashubile
Amandla ashubile ukucindezelwa okukhulu okubonakalayo kungakwazi ukumelana ngaphambi kokulula. Ezinye izinto ezingezona ezingekho emqolondlela ngaphambi kokuqhuma, kephaI-Kevlar® (Aramid) Fibers, imicu ye-carbon, nemicu ye-e-ingilazi ibuthaka futhi ihlumela ngokuguquguquka okuncane. Amandla ashubile alinganiswa njenge-Force indawo ngayinye yeyunithi (i-PA noma uPascals).

2. Ubuningi kanye nokuqina kwesisindo
Lapho uqhathanisa ukuncishiswa kwezinto ezintathu, umehluko omkhulu kule micu emithathu uyabonakala. Uma kwenziwa amasampula amathathu asayizi afanayo nesisindo, kucace ngokushesha ukuthi iKevlar® Fibers ilula kakhulu, nge-carbon fibers isekhondi eliseduze futhiI-E-Glass Fibersokusindayo kakhulu.

3. I-Modulus Young
I-Modulus Young iyisihlobo sokuqina kwento ebanzi futhi iyindlela yokuchaza impahla. Kuchazwa njengesilinganiso se-Uniaxial (endaweni eyodwa I-Young's Modulus = Ukuxineka / ubunzima, okusho ukuthi izinto zokwakha nge-modulus ephezulu yentsha ziqinile kunalezo ezine-modulus ephansi yentsha.
Ukuqina kwe-carbon fiber, Kevlar®, kanye nefayibha yengilazi kuyahluka kakhulu. I-carbon fiber imayelana nokuhlaselwa kabili njenge-aramid fibers kanye namahlandla amahlanu aqinile kune-fibers yengilazi. Okubi kakhulu kokuqina okuhle kwekhabhoni kuyinto ukuqina kwe-carbon fiber ukuthi kuvame ukuba brittle. Lapho yehluleka, kuvame ukungabonisi ubunzima noma ukuguquguquka okuningi.

I-4. Ukuwohloka okuvuthayo nokuwohloka okushisayo
Bobabili iKevlar® ne-carbon fiber bamelana namazinga okushisa aphezulu, futhi nekhophonte. Zombili lezi zinto zisetshenzisiwe ezindwangu zokuvikela kanye nezindwangu ezilwa nomlilo. I-fiberglass ekugcineni izoncibilika, kepha futhi imelana kakhulu namazinga okushisa aphezulu. Vele, i-Frosy Glass Fibers esetshenziswe ezakhiweni ingakhulisa ukumelana nomlilo.
I-Carbon Fiber kanye ne-Kevlar® zisetshenziselwa ukwenza izingubo zokuvikela izicishamlilo noma zokugqoka noma izingubo. Amagilavu ​​kaKevlar ajwayele ukusetshenziswa embonini yenyama ukuvikela izandla lapho esebenzisa imimese. Njengoba imicu ivame ukusetshenziswa ngokwayo, ukumelana nokushisa kwe-matrix (imvamisa epoxy) nakho kubalulekile. Lapho kufudumeza, i-epoxy resin ithambisa ngokushesha.

5. Ukusebenza kukagesi
I-Carbon fiber yenza ugesi, kepha kavlar® kanyeijibhaMusa.kevlar® usetshenziselwa ukudonsa izintambo emibhoshongweni yokuhambisa. Yize ingaqhubeki ugesi, imunca amanzi namanzi enza ugesi. Ngakho-ke, ukuhlanganiswa kwamanzi kumele kusetshenziswe kuKevlar ngezinhlelo ezinjalo.

6. Ukucekelwa phansi kwe-UV
Imicu ye-ARAMIDkuzodida ukukhanya kwelanga kanye nezindawo eziphakeme ze-UV. Imicu yekhabhoni noma yengilazi ayizweli kakhulu emisebeni ye-UV. Kodwa-ke, amanye ama-matric ajwayelekile afana nama-epoxy resins agcinwa elanga lapho kuzomhlophe futhi alahlekelwe amandla. Ama-polyester kanye nama-vinyl ester resens amelana kakhulu ne-UV, kepha abuthakathaka kunama-epoxy resin.

7. Ukungabekezeleli Kokukhathala
Uma ingxenye iphikeke kaningi futhi iqonde, ekugcineni izokwehluleka ngenxa yokukhathala.I-Carbon fiberkuzwela ngandlela thile ekukhathazekeni futhi kuvame ukwehluleka ukwehluleka okuyinhlekelele, kanti iKevlar® imelana nokukhathala. I-fiberglass ikhona endaweni ethile phakathi.

8. Ukumelana ne-Abrasion
UKevlar ® umelana kakhulu ne-abrasion, okwenza kube nzima ukusika, futhi okunye ukusetshenziswa okujwayelekile kweKevlar ® kungamagilavu ​​avikelayo ezindaweni lapho kusetshenziswa khona amabala abukhali. Imicu yekhabhoni nengilazi ayizweli kangako.

9. Ukumelana Kwamakhemikhali
Imicu ye-ARAMIDazwela ama-acid aqinile, izisekelo kanye nama-oxidizing agents athile (isib. SODIUM HYPHECHORLORITE), okungadala ukonakaliswa kwe-fiber. I-Chlorine evamile ye-chlorine (isib. Clorox®) ne-hydrogen peroxide ayikwazi ukusetshenziswa ngeKevlar®. I-OXYGEN BLEAKE (isib. I-Sodium perborate) ingasetshenziswa ngaphandle kokulimaza imicu ye-ARAMID.

10. Izakhiwo ezibophayo zomzimba
Ukuze i-carbon fibers, Kevlar® nengilazi ukwenza kahle, kufanele kubanjelwe endaweni ye-matrix (imvamisa i-epoxy resin). Ngakho-ke, ikhono le-epoxy elisebunyeni kuyo imicu ehlukahlukene libalulekile.
Zombili ikhabhoni futhiIzicucu ze-GlassUnganamathela kalula ku-epoxy, kepha ibhondi le-aramid fiber-epoxy alinamandla njengoba lifisa, futhi lokhu kunamanzi okuncishisiwe kuvumela ukungena kwamanzi ukuba kwenzeke. Ngenxa yalokhu, kulula kakhulu lapho imicu ye-aramid ingadonsa amanzi, ihlanganiswe nokunamathela okungathandeki ku-epoxy, kusho ukuthi uma ingaphezulu lenhlanganisela ye-kevlar ® ilimele, bese i-Kevlar ® ingangena amanzi emicu bese yehlisa inhlanganisela.

11. Umbala futhi weave
I-ARAMID iyigolide elikhanyayo esimweni salo semvelo, ingaba umbala futhi manje iza nemithunzi eminingi emnandi. I-fiberglass ibuye iza ngezinguqulo ezinemibala.I-Carbon fiberUhlala emnyama futhi ungahlanganiswa nama-aramid anemibala, kepha awukwazi ukubambelela uqobo.