Taw qhia Ntawm Silane Coupling Agent
Organosilicon monomers nrog ntau tshaj ob pab pawg sib txawv hauv cov molecule tuaj yeem siv tshuaj lom neeg (couple) nrog cov khoom siv organic thiab cov khoom siv tsis zoo. Cov tshuaj formula ntawm silane coupling tus neeg sawv cev yog: RSiX3. X sawv cev rau pawg ua haujlwm hydrolyzable, uas tuaj yeem hnov mob nrog methoxy, ethoxy, cellosolve thiab inorganic cov ntaub ntawv (iav, hlau, SiO2). R sawv cev rau pawg neeg ua haujlwm organic, uas tuaj yeem hnov mob nrog cov organic pawg xws li yas, ethoxy, methacrylic, amino, thiab mercapto, nrog rau cov ntaub ntawv inorganic, ntau yam hluavtaws cob, thiab roj hmab.
Ntawm no, n=0-3; X - hydrolyzable pawg; Y-organic functional pawg, uas tuaj yeem hnov mob nrog cov resin. X feem ntau yog ib pawg chlorine, pawg methoxy, pawg ethoxy, pawg methoxyethoxy, pawg acetoxy, thiab lwm yam. Thaum cov pab pawg no yog hydrolyzed, silanol (Si (OH) 3) yog tsim, uas yog ua ke nrog inorganic tshuaj los tsim Siloxane. Y yog vinyl, amino, epoxy, methacryloxy, mercapto lossis urea. Cov pab pawg reactive no tuaj yeem hnov mob nrog cov tshuaj organic rau kev sib raug zoo. Yog li ntawd, los ntawm kev siv silane coupling tus neeg sawv cev, "tus choj molecular" tuaj yeem teeb tsa nruab nrab ntawm qhov sib txuas ntawm cov khoom siv tsis zoo thiab cov khoom siv organic, thiab ob qho khoom siv nrog cov khoom sib txawv tuaj yeem txuas ua ke los txhim kho kev ua haujlwm ntawm cov khoom sib xyaw thiab ua kom muaj kev sib raug zoo. zog. Cov yam ntxwv ntawm silane coupling tus neeg sawv cev yog thawj zaug siv rau iav fiber reinforced yas (iav fiber ntau reinforced yas) ua tus neeg saib xyuas nto rau iav fiber ntau, uas zoo heev txhim kho cov khoom siv hluav taws xob, hluav taws xob thiab cov khoom tiv thaiv kev laus ntawm iav fiber reinforced yas. qhov tseem ceeb tau ntev tau lees paub.
Kev siv cov silane coupling agents tau nthuav dav los ntawm iav fiber reinforced plastics (FRP) mus rau iav fiber ntau qhov chaw kho mob rau iav fiber reinforced thermoplastics (FRTP), cov tshuaj kho deg rau inorganic fillers, thiab sealants, cob pob zeb, dej crosslinking Polyethylene, resin encapsulation. cov ntaub ntawv, plhaub molding, log tsheb, txoj siv sia, coatings, adhesives, abrasive cov ntaub ntawv (sib tsoo pob zeb) thiab lwm yam tshuaj kho deg. Ntawm ob pawg ntawm silane coupling tus neeg saib xyuas nrog cov khoom sib txawv, pawg Y yog qhov tseem ceeb tshaj plaws, nws muaj kev cuam tshuam zoo rau kev ua haujlwm ntawm cov khoom, thiab ua lub luag haujlwm hauv kev txiav txim siab kev ua haujlwm ntawm tus neeg sawv cev sib txuas. Tsuas yog thaum pawg Y tuaj yeem hnov mob nrog cov khoom sib xws tuaj yeem txhim kho lub zog ntawm cov khoom sib xyaw. Feem ntau, pawg Y yuav tsum tau sib haum nrog cov resin thiab muaj peev xwm sib txuas cov tshuaj tiv thaiv.