1. Tlhaloso ea likhoele tsa aramid
Faeba ya Aramid ke lebitso le kopaneng la difaeba tsa polyamide tse monko o monate.
2. Tlhophiso ea likhoele tsa aramid
Faeba ea Aramid ho latela sebopeho sa limolek'hule e ka aroloa ka mefuta e meraro: faeba ea polyamide ea para-aromatic, faeba ea polyamide e kopaneng le aromatic, faeba ea polyamide e kopaneng le aromatic. Har'a tsona, faeba ea polyamide ea para-aromatic e arotsoe ka lifaeba tsa poly-phenylamide (poly-p-aminobenzoyl), faeba tsa poly-benzenedicarboxamide terephthalamide, faeba tsa benzodicarbonyl terephthalamide tse kopaneng le lifaeba tsa poly-m-tolyl terephthalamide, faeba tsa poly-N,Nm-tolyl-bis-(isobenzamide) terephthalamide.
3. Litšobotsi tsa likhoele tsa aramid
1. Thepa e ntle ea mechini
Aramid e kenellang ke polymer e tenyetsehang, matla a robehang a phahame ho feta polyester e tloaelehileng, k'hothone, nylon, jj., bolelele bo boholo, bo bonolo ha bo ama, bo khona ho potoloha hantle, bo ka hlahisoa ka botenya bo fapaneng, bolelele ba likhoele tse khutšoane le likhoele, ka kakaretso mechini ea masela e entsoeng ka lipalo tse fapaneng tsa khoele e lohiloeng ka masela, masela a sa lohiloeng, kamora ho qeta, ho fihlela litlhoko tsa libaka tse fapaneng tsa liaparo tse sireletsang.
2. Ho hanyetsa malakabe le mocheso hantle haholo
Tekanyo ea oksijene e lekanyelitsoeng (LOI) ea m-aramid ke 28, kahoo ha e tsoele pele ho tuka ha e tloha lelakabeng. Litšobotsi tsa ho thibela malakabe tsa m-aramid li khethoa ke sebopeho sa eona sa lik'hemik'hale, e leng se etsang hore e be faeba e thibelang malakabe ka ho sa feleng e sa senyeheng kapa e lahleheloeng ke litšobotsi tsa eona tsa ho thibela malakabe ha nako e ntse e ea kapa e hlatsuoa. M-aramid e tsitsitse mochesong 'me e ka sebelisoa khafetsa ho 205°C 'me e boloka matla a phahameng mochesong o fetang 205°C. M-aramid e na le mocheso o phahameng oa ho bola 'me ha e qhibilihe kapa ho rotha mochesong o phahameng, empa e qala ho chesa mochesong o fetang 370°C.
3. Thepa e tsitsitseng ea lik'hemik'hale
Ntle le li-acid le metheo e matla, aramid ha e angoe ke metsoako le oli tsa tlhaho. Matla a metsi a aramid a batla a lekana le matla a omileng. Ho tsitsa ha mouoane oa metsi a kolobisitsoeng ho molemo ho feta ha likhoele tse ling tsa tlhaho.
Aramid e na le kutloelo-bohloko e itseng khanyeng ea UV. Haeba e pepesetsoa letsatsing nako e telele, e lahleheloa ke matla a mangata 'me ka hona e lokela ho sireletsoa ka lera le sireletsang. Lera lena le sireletsang le tlameha ho khona ho thibela tšenyo ea masapo a aramid ho tsoa khanyeng ea UV.
4. Khanyetso ea mahlaseli
Khanyetso ea mahlaseli a interposition aramids e ntle haholo. Mohlala, tlas'a 1.72x108rad/s ea r-radiation, matla a lula a sa fetohe.
5. Ho tšoarella
Kamora ho hlatsuoa ka makhetlo a 100, matla a ho taboha ha masela a m-aramid a ntse a ka fihla ho feta 85% ea matla a 'ona a pele. Ho hanyetsa mocheso oa para-aramid ho phahame ho feta oa inter-aramids, ka mocheso o sebelisoang khafetsa oa -196°C ho isa ho 204°C 'me ha ho na ho bola kapa ho qhibiliha ho 560°C. Tšobotsi ea bohlokoa ka ho fetisisa ea para-aramid ke matla a eona a holimo le modulus e phahameng, matla a eona a feta 25g/dan, e leng tšepe ea boleng bo holimo ka makhetlo a 5~6, faeba ea khalase ka makhetlo a 3 le khoele ea indasteri ea nylon e matla ka makhetlo a 2; modulus ea eona ke khoele ea tšepe kapa khalase ea boleng bo holimo ka makhetlo a 2~3 le khoele ea indasteri ea nylon e matla ka makhetlo a 10. Sebopeho se ikhethang sa bokaholimo ba pulp ea aramid, se fumanoang ka ho fibrillation ea bokaholimo ba likhoele tsa aramid, se ntlafatsa haholo ho tšoara ha motsoako 'me ka hona se loketse e le khoele e matlafatsang bakeng sa lihlahisoa tsa khohlano le ho koala. Aramid Pulp Hexagonal Special Fibre I Aramid 1414 Pulp, e mosehla o bobebe, e boreleli, e na le mapheo a mangata, matla a phahameng, botsitso bo botle ba litekanyo, ha e robehe, e hanela mocheso o phahameng, e hanela mafome, e thata, e fokotseha hanyane, e hanyetsa ho khoptjoa hantle, sebaka se seholo sa bokaholimo, e hokahane hantle le lisebelisoa tse ling, thepa e matlafatsang e nang le ho khutla ha mongobo oa 8%, bolelele bo tloaelehileng ba 2-2.5mm le sebaka sa bokaholimo sa 8m2/g. E sebelisoa e le thepa ea ho matlafatsa gasket e nang le ts'ebetso e ntle ea ho mamella le ho tiisa, 'me ha e kotsi bophelong ba batho le tikolohong, 'me e ka sebelisoa bakeng sa ho tiisa ka metsing, oli, acid e makatsang le e mahareng le media ea alkali. Ho pakiloe hore matla a sehlahisoa a lekana le 50-60% ea lihlahisoa tse matlafalitsoeng ka faeba ea asbestos ha ho eketsoa ka tlase ho 10% ea slurry. E sebelisoa ho matlafatsa khohlano le ho tiisa thepa le lihlahisoa tse ling tse entsoeng, 'me e ka sebelisoa e le mokhoa o mong oa asbestos bakeng sa thepa ea ho tiisa khohlano, pampiri ea ho thibela mocheso e sebetsang hantle le thepa e kopantsoeng e matlafalitsoeng.
Nako ea poso: Phato-01-2022