01 Abrasive Resistance
Nylon muaj qee qhov zoo sib xws nrog polyester. Qhov sib txawv yog tias qhov kub tsis kam ntawm nylon yog qhov phem dua li ntawm polyester, qhov tshwj xeeb lub ntiajteb txawj nqus ntawm nylon yog me dua thiab noo noo nqus.nylonyog ntau dua li ntawm polyester. Nylon yog ib qho yooj yim rau dye. Nws lub zog, abrasive kuj thiab qaug zog kuj yog txhua yam zoo dua polyester. Nylon yuav deform yooj yim dua, tab sis nws muaj kev ua haujlwm zoo rov qab thiab muaj zog dua rov ua haujlwm dua.
Lub siab elongation ntawm nylon ua rau nws zoo nyob rau hauv tsis kam mus cuam tshuam hnav. Kev hnav tsis kam ntawm nylon yog qhov zoo tshaj plaws ntawm tag nrho cov fibers, uas yog 10 npaug siab dua li cov paj rwb thiab 20 npaug siab dua cov ntaub plaub.
02 Lub ntiajteb txawj nqus
Ntawm cov khoom siv tseem ceeb (polyester, nylon, acrylic fiber thiab Vinal), qhov tshwj xeeb ntawm cov nylon yog qhov tsawg tshaj plaws, uas yog 1.14. Vim nws lub teeb tshwj xeeb lub ntiajteb txawj nqus, nylon yog tsim rau cov khoom siv rau kev ua haujlwm ntawm qhov siab thiab cov roob siab. Tsis tas li vim nws lub zog siab, nylon tuaj yeem siv rau hauv kev ua hlua, xov xov, zoo sisal xov paj thiab "hollow cored fiber".
03 Thermal Khoom
Thaum nylon ua tiav, qhov cuam tshuam ntawm qhov kub ntawm cov khoom fiber ntau yuav tsum raug txiav txim siab. Thaum qhov kub ntawm huab cua kub tshaj 100 ℃, lub zog poob ntawm nylon yog pom tseeb. Tias yog vim nyob rau hauv cov tshuaj tiv thaiv ntawm tshav kub, lubfiber ntaumolecules yuav muaj oxidative tshuaj degradation. Feem ntau, ntawm qhov kub thiab txias, lub zog ntawm nylon muaj zog dua. Vim hais tias ntawm qhov kub thiab txias, cov molecules muaj thermal zog me ntsis thiab cov intermolecular rog muaj zog.
Nyob rau hauv chav tsev kub, lub zog ntawm nylon staple fiber ntau tuaj yeem ncav cuag 57.33 ~ 66.15cN / tex thiab lub zog ntawm nylon high-tenacity fiber ntau tuaj yeem ncav cuag 83.8cN / tex, uas yog 2 ~ 3 npaug zog dua li cov paj rwb fiber ntau. . Tsis tas li ntawd, qhov nce ntawm qhov kub yuav ua rau nylon shrink. Thaum nws nyob ze rau qhov chaw melting, lub shrinkage yog hnyav thiab fiber ntau yuav daj.
04 Hluav taws xob khoom
Lub conductivity ntawm nylon yog tsawg heev. Yog li ntawd yuav yooj yim muaj tsub zuj zuj ntawm static hluav taws xob thaum lub sij hawm tsim khoom. Tab sis thaum tus txheeb ze kub ntawm ib puag ncig nce, cov conductivity nce raws li ib tug exponential muaj nuj nqi. Piv txwv li, thaum tus txheeb ze humidity hloov ntawm 0 mus rau 100%, qhov conductivity ntawm Nylon 66 yuav nce 10.6sij hawm. Yog li cov kev kho mob ntub dej raws li cov tshuaj tsuag tsuag hauv kev ua cov nylon yuav txo qis cov hluav taws xob zoo li qub.
05 Moisture Absorption Performance
Nylon yog hydrophobic fiber. Tab sis nyob rau hauv nylon macromolecules, muaj ntau ntawm cov tsis muaj zog hydrophilic pawg, raws li -C = O-NH-. Thiab ntawm ob qhov kawg ntawm cov molecules, kuj muaj -NH2 thiab -COOH hydrophilic pawg. Yog li ntawd, qhov kev ua tau zoo ntawm cov dej noo ntawm nylon yog siab dua li ntawm tag nrho lwm cov hluavtaws fibers, cia siab rau Vinal.
06 Chemical Property
Cov tshuaj ruaj khov ntawm nylon yog qhov zoo, tshwj xeeb tshaj yog cov alkali tsis kam. Hauv 10% NaOH tov, tom qab ua tiav rau 10 teev ntawm 85 ℃, lub zog ntawm fiber ntau txo 5% nkaus xwb.
Cov pab pawg ntau dua hauv nylon macromolecule yog pawg amide, uas yuav raug hydrolyzed nyob rau hauv qee yam mob.
Acid tuaj yeem hydrolyze nylon macromolecules thiab ua rau txo qis ntawm fiber ntau polymerization. Nylon macromolecules tseem tuaj yeem hydrolyze hauv dej siab tshaj 150 ℃. Acid thiab cua sov tuaj yeem ua rau cov hydrolysis ntawm fiber ntau.
Muaj zog oxidant yuav puas nylon, xws litshuaj dawbhmoov, sodium hypochlorite thiab hydrogen peroxide, thiab lwm yam., uas yuav ua rau puas ntawm fiber ntau molecular saw thiab txo lub zog ntawm fiber. Tsis tas li ntawd cov ntaub yuav daj tom qab bleached los ntawm cov oxidants. Yog li yog tias nws xav tau tshuaj dawb nylon ntaub, feem ntau siv sodium chlorite (NaCLO2) los yog txo cov tshuaj bleaching.
Post lub sij hawm: Dec-03-2022