1.Incazelo yezintambo ze-aramid
I-Aramid fiber igama elihlangene lemicu ye-polyamide enamakha.
2.Ukuhlukaniswa kwama-aramid fibers
I-Aramid fiber ngokusho kwesakhiwo samangqamuzana ingahlukaniswa ngezinhlobo ezintathu: i-para-aromatic polyamide fiber, i-inter-aromatic polyamide fiber, i-aromatic polyamide copolymer fiber. Phakathi kwazo, imicu ye-polyamide ye-para-aromatic ihlukaniswe yaba imicu ye-poly-phenylamide (poly-p-aminobenzoyl), imicu ye-poly-benzenedicarboxamide terephthalamide, imicu ye-inter-position benzodicarbonyl terephthalamide ihlukaniswe yaba imicu ye-poly-m-tolyl terephthalamide, i-poly-N, I-Nm-tolyl-bis-(isobenzamide) imicu ye-terephthalamide.
3.Izici zemicu ye-aramid
1. Izakhiwo ezinhle zemishini
I-interposition aramid iyi-polymer eguquguqukayo, amandla aphukayo aphezulu kune-polyester evamile, ukotini, inayiloni, njll., ubude bukhulu, buthambile uma uthinta, i-spinnability enhle, ingakhiqizwa ibe yi-slenderness ehlukene, ubude bemicu emifushane nemicu, ngokuvamile indwangu. imishini eyenziwe ngezintambo ezahlukene ibala ezilukiweyo zibe izindwangu, izindwangu ezingezona ezilukiwe, ngemva kokuqeda, ukuhlangabezana nezidingo zezindawo ezahlukene zezingubo zokuzivikela.
2. Ukumelana nelangabi nokushisa okuhle kakhulu
I-limiting oxygen index (LOI) ye-m-aramid ingama-28, ngakho ayiqhubeki ivutha lapho ishiya ilangabi. Izakhiwo ezivimbela ilangabi ze-m-aramid zinqunywa ukwakheka kwamakhemikhali ayo, okuyenza ibe ifayibha ebambezela ilangabi unomphela engoni noma ilahlekelwe izici zayo ezibamba amalangabi ngokuhamba kwesikhathi noma ukuwashwa. I-m-aramid iqinile ngokushisa futhi ingasetshenziswa ngokuqhubekayo ku-205°C futhi igcina amandla aphezulu emazingeni okushisa angaphezu kuka-205°C. I-m-aramid inezinga lokushisa eliphezulu lokubola futhi ayincibiliki noma iconsi emazingeni okushisa aphezulu, kodwa iqala ukusha emazingeni okushisa angaphezu kuka-370°C.
3. Izakhiwo zamakhemikhali ezizinzile
Ngaphezu kwama-asidi aqinile nezisekelo, i-aramid cishe ayithinteki yizincibilikisi zemvelo namafutha. Amandla amanzi e-aramid acishe alingane namandla omile. Ukuzinza komhwamuko wamanzi agcwele kungcono kunokweminye imicu yemvelo.
I-Aramid izwela kancane ekukhanyeni kwe-UV. Uma ibekwe elangeni isikhathi eside, ilahlekelwa amandla amaningi ngakho-ke kufanele ivikelwe ngesendlalelo esivikelayo. Lesi sendlalelo esiyisivikelo kufanele sikwazi ukuvimba umonakalo kuhlaka lwamathambo e-aramid ekukhanyeni kwe-UV.
4. Ukumelana nemisebe
Ukumelana nemisebe ye-interposition aramids kuhle kakhulu. Isibonelo, ngaphansi kuka-1.72x108rad/s we-r-radiation, amandla ahlala engashintshi.
5. Ukuqina
Ngemuva kokugeza okuyi-100, amandla okudabula kwezindwangu ze-m-aramid asengafinyelela ngaphezu kwama-85% wamandla azo okuqala. Ukumelana nezinga lokushisa kwama-para-aramide kuphakeme kunalokhu kwe-inter-aramid, nebanga lokushisa eliqhubekayo lokusebenzisa elingu -196°C kuya ku-204°C futhi akukho ukubola noma ukuncibilika ku-560°C. Isici esibaluleke kakhulu se-para-aramid amandla ayo aphezulu kanye ne-modulus ephezulu, amandla ayo angaphezu kuka-25g/dan, okuyizikhathi ezi-5 ~ 6 zensimbi yekhwalithi ephezulu, izikhathi ezi-3 ze-glass fiber kanye nezikhathi ezi-2 zentambo yezimboni enayiloni enamandla kakhulu. ; I-modulus yayo izikhathi ezingu-2 ~ 3 zekhwalithi ephezulu yensimbi noma i-glass fiber kanye nezikhathi ezingu-10 zamandla aphezulu wentambo yezimboni enayiloni. Isakhiwo esiyingqayizivele se-pulp ye-aramid, etholakala ngokufaka i-surface fibrillation ye-aramid fibres, ithuthukisa kakhulu ukubamba kwenhlanganisela futhi ngenxa yalokho ifaneleka njenge-fiber eqinisayo yemikhiqizo yokungqubuzana nokuvala. I-Aramid Pulp Hexagonal Special Fiber I Aramid 1414 I-Pulp, i-flocculent ephuzi ngokukhanyayo, i-plush, enamapulangwe amaningi, amandla aphezulu, ukuzinza okuhle kwe-dimensional, non-brittle, ukumelana nokushisa okuphezulu, ukumelana nokugqwala, ukuqina, ukushwabana okuphansi, ukumelana okuhle nokuhuzuka, indawo enkulu. , ukuhlanganiswa okuhle nezinye izinto, izinto eziqinisayo ezinokubuyiselwa komswakama we-8%, ubude obuphakathi kuka-2-2.5mm kanye nendawo engu-8m2 / g. Isetshenziswa njengento yokuqinisa i-gasket enokuqina okuhle nokusebenza kokuvala, futhi ayilimazi empilweni yomuntu kanye nemvelo, futhi ingasetshenziselwa ukuvala emanzini, uwoyela, i-asidi yamandla ayinqaba naphakathi kanye nemidiya ye-alkali. Kuye kwafakazelwa ukuthi amandla omkhiqizo alingana no-50-60% wemikhiqizo eqinisiwe ye-asbestos fiber lapho ngaphansi kwe-10% ye-slurry yengezwa. Isetshenziselwa ukuqinisa izinto ezisetshenziswayo zokungqubuzana nokuvala kanye neminye imikhiqizo ekhiqiziwe, futhi ingasetshenziswa njengenye indawo ye-asbestos yezinto zokuvala ukungqubuzana, ukusebenza okuphezulu kwephepha lokuvikela ukumelana nokushisa nezinto eziyinhlanganisela eziqinisiwe.
Isikhathi sokuthumela: Aug-01-2022