Daim ntawv thov ntawm Electroplated Fluorine Coatings ntawm Hluav Taws Xob Hluav Taws Xob rau Kev Tiv Thaiv Cov Khoom Roj Hmab
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Daim ntawv thov ntawm Electroplated Fluorine Coatings ntawm Hluav Taws Xob Hluav Taws Xob rau Kev Tiv Thaiv Cov Khoom Roj Hmab
Cov yam ntxwv zoo elasticity ntawm cov khoom siv roj hmab ua rau lawv nyob hauv ib qho chaw hauv kev siv cov khoom siv. Nrog rau kev txhim kho ntawm niaj hnub roj hmab synthesis thiab kev siv thev naus laus zis, cov khoom siv roj hmab tau nce ntxiv rau kev siv thev naus laus zis xws li aviation thiab aerospace. Txawm li cas los xij, cov ntaub ntawv roj hmab yog qhov ua rau kev laus (lawv cov ntawv laus [19-20]] feem ntau suav nrog oxygen aging, ozone aging, lub teeb aging, thermal aging, mechanical stress aging, thermal oxygen aging, photooxygen aging, and biological aging), thiab lawv cov khoom sib txawv yuav txo qis rau qib sib txawv tom qab kev laus. Feem ntau, kev ua tau zoo ntawm cov khoom siv elastomer feem ntau nyob ntawm qhov kev ua tau zoo ntawm txheej txheej ntawm elastomer. Kev siv cov txheej txheem tiv thaiv rau ntawm cov khoom siv roj hmab yog qhov tsis xav tau kev ntsuas zoo los txhim kho cov khoom siv roj hmab [21].
Los ntawm kev kawm txog kev sib xyaw ntawm CKH-3 (cis polyisoprene) thiab CK nyob rau hauv sib txawv proportions Φ- 32 (copolymer ntawm fluororubber trifluoroethylene thiab vinylidene fluoride) qhia [21] tias muaj pes tsawg leeg ntawm txheej txheej yog ywj siab ntawm blending ratio, thiab feem ntau ntawm cov fluororubber ntxiv yog nyob rau saum npoo ntawm cov qauv, thaum seem me me yog dispersed nyob rau hauv lub matrix ntawm polyisoprene. Txawm li cas los xij, CK Φ- 32 tivthaiv tsis tuaj yeem npog tag nrho saum npoo ntawm cov qauv. Cov qauv saum npoo no tsis tuaj yeem lav tias cov roj thiab cov kuab tshuaj hydrocarbon tsis tuaj yeem tiv nrog polyisoprene hauv kev sib xyaw. Tab sis roj thiab benzene kuj tuaj yeem ua tiav los ntawm txheej. Table 1 teev cov khoom ntawm fluorinated txheej hloov kho thiab tsis hloov kho roj hmab (tsuas yog CKH-3). Los ntawm Table 1, nws tuaj yeem pom tau tias kev nthuav dav ntawm cov roj hmab sib xyaw tom qab kev hloov kho nrog cov tshuaj fluorine uas muaj cov coatings tau txo qis heev (thaum tuav nws cov khoom qub thiab cov khoom siv kho tshuab).
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