Bending Test Thiab Adhesion ntawm FBE hmoov txheej

Adhesion ntawm FBE hmoov txheej

Lub cupping tester feem ntau yog siv los txiav txim siab qhov adhesion ntawm FBE hmoov txheej, thiab Fig.7 qhia txog lub hauv paus ntsiab lus ntawm lub khob khob tester. Lub taub hau ntawm cupping tester yog spherical, thawb rov qab ntawm coated panels los ntsuam xyuas seb cov zaj duab xis zoo tawg los yog sib cais los ntawm substrate. Fig.8 yog ib qho kev xeem cupping ntawm epoxy hmoov txheej. Nws tuaj yeem pom tias FBE hmoov txheej uas tsis muaj CTBN-EP prepolymers muaj cov kab nrib pleb me me (Fig. 8(1)), hos cov coatings uas muaj CTBN-EP prepolymers (Fig. 8(2-3)) tsis pom cov kab nrib pleb, qhia tau zoo adhesion thiab toughness.

Resistant bending xeem ntawm FBE hmoov txheej

Fig.9 qhia tau hais tias qhov kev tiv thaiv kev ntsuas kev ntsuas ntawm peb hom FBE hmoov txheej. Kev tiv thaiv rau kev khoov ntawm FBE hmoov txheej yam tsis tau sau nrog CTBN-EP prepolymers tsis zoo (Fig.9(1)), thiab pom muaj qhov tshwm sim tsis sib xws. Thaum CTBN-EP prepolymers ntxiv rau hauv cov hmoov txheej, qhov kev tiv thaiv rau kev khoov ntawm FBE hmoov txheej yog txhim kho zoo nrog cov ntsiab lus ntawm CTBN-EP prepolymers (Fig.9(2-3)), thiab tsis muaj qhov tshwm sim tsis sib haum xeeb. , qhia tau hais tias muaj zog heev rau khoov.

Ntsev tshuaj ntsuam ntawm txheej txheej

Cov tshuaj tiv thaiv corrosion ntawm cov txheej txheej raug soj ntsuam los ntawm kev nthuav tawm cov coatings rau cov huab cua ntsev uas tsim los ntawm kev txau 5wt% aqueous NaCl tov ntawm 35 ± 2 ° C rau 3000 h raws li ISO 14655: 1999 specification. Tom qab tshem tawm los ntawm ntsev pos chamber, tag nrho cov qauv yog rinsed nrog distilled dej kom tshem tawm tej residues, lub corrosion ntawm txheej yog pom. Nws tuaj yeem pom los ntawm Fig.10, tom qab cov coatings tau ntim nrog CTBNEP prepolymers (Fig.10b), tsis muaj pov thawj ntawm xeb, thiab cov qauv tsis muaj hnub so, qhia txog kev tiv thaiv corrosion ntawm coatings fi lled nrog CTBN EP prepolymers. tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm tus qauv.

Kev tiv thaiv corrosion ntawm cov organic txheej tsis muaj qhov tsis xws luag yog nyob ntawm nws cov khoom thaiv kev tiv thaiv, piv txwv li, yuav ua li cas nws thiaj li txo qhov diffusion ntawm ya raws thiab corrosive ions los ntawm zaj duab xis. Ntawm qhov tsis sib xws uas ua rau muaj kev cuam tshuam cov khoom yog kev tawm tsam ntawm lub hauv paus hlau substrate. Cov txheej nyob ze ntawm thaj chaw liab qab tsim ib txheej passivating ntawm lub substrate uas tiv thaiv corrosion ntxiv. Li no, nws tuaj yeem ntes cov ions (tejzaum Cl-) yooj yim los tsim cov doped polymer.