Meltblown nonwovenTus nqi yog nruab nrab, thaum lub sijhawm ua haujlwm ntawm kev tiv thaiv zoo heev rau hydrolysis thiab acid thiab alkali corrosion, feem ntau yog siv rau hauv qhov kub thiab txias tsis siab, cov dej noo noo yog cov haujlwm loj.
Feem ntau, qhov kub thiab txias ntawm polyester fiber yog nruab nrab ntawm 130 ℃ thiab 150 ℃. Yuav kom kov yeej qhov tshwm sim ntawm cov polyester koob-punched felt uas muaj qhov kub thiab txias tsis kam ntawm ntau tshaj 130 ℃ rau lub sijhawm ntev, lub lim dej tshiab nrog qhov kub ua haujlwm ntawm 150 ℃ ~ 170 ℃ yog tsim, yog li kom tsis txhob muaj cov khib nyiab los ntawm kev siv cov khoom siv lim dej kub siab hauv qee qhov kev ua haujlwm.
Cov ntaub npuag uas muaj koob no ua rau cov khoom siv lim dej polyester fiber lim dej zoo dua qub thiab txo qhov siab poob, thiab nws muaj cov nyhuv lim dej ntawm cov khoom siv lim dej coated. Hauv cov lim dej kub nruab nrab thiab ib txwm, cov ntaub npuag polypropylene muaj qhov tsis kam kub qis tshaj plaws, tsis kam khiav qis thiab txuag hluav taws xob. Ntxiv rau qhov zoo ntawm cov ntaub npuag ib txwm, thiab kev tiv thaiv hnav zoo heev, nrog rau tus nqi siab thiab dhau los ua cov ntaub npuag lim dej loj tshaj plaws.
Acrylic fiber acupuncture lim xav tias kub ntawm 140 ~ 160 degrees Celsius, kev siv cov khoom siv fiber ntau los ntawm txawv teb chaws, nws yog qhov zoo tshaj plaws tiv taus acid, alkali thiab hydrolysis tiv taus nruab nrab kub lim khoom.
Peb tshwj xeeb hauv kev tsim cov meltblown nonwoven, txais tos los sab laj ~
Lub sijhawm tshaj tawm: Lub Peb Hlis-28-2020