1.Inkcazo yeefiber ze-aramid
I-Aramid fiber ligama elidityanisiweyo leentsinga zepolyamide ezinuka kamnandi.
2.Ukuhlelwa kweefiber ze-aramid
Ifayibha yeAramid ngokwesakhiwo semolekyuli inokwahlulwa ibe ziindidi ezintathu: ifayibha ye-para-aromatic polyamide, ifayibha ye-polyamide enuka kamnandi, ifayibha ye-polyamide enuka kamnandi. Phakathi kwazo, i-para-aromatic polyamide fibers yahlulwe yaba yi-poly-phenylamide (poly-p-aminobenzoyl) fibers, i-poly-benzenedicarboxamide terephthalamide fibers, i-inter-position benzodicarbonyl terephthalamide fibers yahlulwe yaba yi-poly-m-tolyl terephthalamide fibers, i-poly-N, i-Nbim-tolyphthalamide (isophthalamide)
3.Iimpawu ze-aramid fibers
1. Iimpawu ezilungileyo zoomatshini
I-aramid ye-interposition yi-polymer eguquguqukayo, amandla aphukileyo aphezulu kune-polyester eqhelekileyo, umqhaphu, i-nylon, njl.
2. Idangatye eligqwesileyo kunye nokumelana nobushushu
Isalathiso seoksijini emiselweyo (LOI) ye-m-aramid ngama-28, ngoko ke ayiqhubeki nokuvutha xa ishiya ilangatye. Iimpawu zokubuyiswa komlilo we-m-aramid zimiselwa sisimo sayo sekhemikhali, nto leyo eyenza ukuba ibe yintsinga ebambezele idangatye ngokusisigxina engohlisiyo okanye iphulukane neempawu zayo zokunqanda amadangatye ngexesha okanye ngokuhlamba. I-m-aramid izinzile ngokobushushu kwaye ingasetyenziswa ngokuqhubekayo kwi-205°C kwaye igcina amandla aphezulu kumaqondo obushushu angaphezu kwama-205°C. I-m-aramid inobushushu obuphezulu bokubola kwaye ayinyibiliki okanye ithontsize kumaqondo obushushu aphezulu, kodwa iqala ukutsha kumaqondo obushushu angaphezu kwama-370°C.
3. Iimpawu zeekhemikhali ezizinzileyo
Ukongeza kwi-acids ezomeleleyo kunye neziseko, i-aramid ayichatshazelwanga zii-solvents eziphilayo kunye namafutha. Amandla amanzi e-aramid aphantse alingane namandla omileyo. Uzinzo lomphunga wamanzi ohluthisiweyo lungcono kunolo lwezinye iintsinga eziphilayo.
I-Aramid inochuku kukukhanya kwe-UV. Ukuba ubonakaliswe elangeni ixesha elide, ulahlekelwa amandla amaninzi kwaye ngoko kufuneka ukhuselwe ngoluhlu olukhuselayo. Lo maleko okhuselayo kufuneka ukwazi ukubhloka umonakalo kwi-aramid skeleton ekukhanyeni kwe-UV.
4. Ukumelana nemitha
Ukumelana nemitha ye-interposition aramids kuhle kakhulu. Umzekelo, phantsi kwe-1.72x108rad/s ye-r-radiation, amandla ahlala ehleli.
5. Ukuqina
Emva kokuhlanjwa kwe-100, amandla okukrazula amalaphu e-m-aramid asenokufikelela ngaphezulu kwe-85% yamandla awo okuqala. Ukumelana nobushushu be-para-aramids kuphezulu kune-inter-aramids, kunye neqondo lokushisa eliqhubekayo lokusetyenziswa kwe -196 ° C ukuya kwi-204 ° C kwaye akukho ukubola okanye ukunyibilika kwi-560 ° C. Uphawu oluphawulekayo lwe-para-aramid lunamandla aphezulu kunye nemodyuli ephezulu, amandla ayo angaphezu kwe-25g / dan, eyi-5 ~ 6 ngamaxesha ensimbi ephezulu, amaxesha ama-3 e-glass fiber kunye namaxesha ama-2 anamandla aphezulu amashishini enayiloni; imodyuli yayo ngamaxesha angama-2 ~ 3 entsimbi ekumgangatho ophezulu okanye ifayibha yeglasi kunye namaxesha ali-10 omelele kakhulu umsonto wenayiloni woshishino. Isakhiwo esiyingqayizivele somphezulu we-pulp ye-aramid, efunyenwe nge-fibrillation ye-surface ye-aramid fibers, iphucula kakhulu ukubamba i-compound kwaye ngoko ifanelekile njengefayibha yokuqinisa i-friction kunye nokutywinwa kweemveliso. I-Aramid Pulp Hexagonal I-Fiber ekhethekileyo I-Aramid 1414 I-Pulp, i-flocculent etyheli ekhanyayo, i-plush, ene-plues ezininzi, amandla aphezulu, uzinzo oluhle lwe-dimensional, i-non-brittle, ukumelana nobushushu obuphezulu, ukumelana ne-corrosion, iqinile, i-shrinkage ephantsi, ukuxhathisa okulungileyo kwe-abrasion, indawo enkulu, ukudibanisa okulungileyo, ukubuyisela umyinge wezinto ezi-8 kunye nobude obuyi-8. 2-2.5mm kunye nommandla we-8m2 / g. Isetyenziswe njengento yokuqinisa i-gasket enokuqina kakuhle kunye nokusebenza kokutywinwa, kwaye ayinabungozi kwimpilo yabantu kunye nokusingqongileyo, kwaye ingasetyenziselwa ukutywinwa emanzini, i-oyile, i-acid engaqhelekanga kunye nephakathi kunye ne-alkali media. Kuye kwaqinisekiswa ukuba amandla emveliso alingana ne-50-60% yeemveliso ze-asbestos ze-fiber eziqinisiweyo xa ngaphantsi kwe-10% ye-slurry yongezwa. Isetyenziselwa ukuqinisa ukukhuhla kunye nokutywina kunye nezinye iimveliso ezenziweyo, kwaye inokusetyenziswa njengenye indlela ye-asbestos kwizinto zokutywinwa zokutywina, ukusebenza okuphezulu kwephepha lokugquma ubushushu kunye nemathiriyeli edibeneyo edibeneyo.
Ixesha lokuposa: Aug-01-2022