Dab tsi yog daim ntawv thov ntawm silane coupling agents hauv fiberglass impregnation?

01. Lub voj voogfiberglassmuaj ntau yam kev siv. Vim nws lub zog txhua yam muaj zog, zoo hluav taws xob rwb thaiv tsev, thiab zoo cua sov thiab corrosion kuj, nws tau dhau los ua cov khoom tseem ceeb hauv kev lag luam xws li photovoltaics, cua zog, aerospace, electronics, kev tsim kho, thiab kev thauj mus los.fiberglassyog tsim los ntawm ntau yam minerals (limestone, quartz xuab zeb, dolomite, thiab lwm yam) raws li raw cov ntaub ntawv, uas yog tov nyob rau hauv ib tug tej yam kev faib ua feem, melted ntawm high kub, thiab ces kos rau hauv fibers. Thaum fiberglass muaj qhov zoo xws li lub teeb yuag, siab -lub zog, tshav kub- tiv taus, thiab corrosion- tiv taus, nws kuj muaj qee qhov tsis zoo, xws li siab brittleness thiab hnav tsis zoo. Silane coupling agents, ua raws li "molecular txuas hniav" txuas cov khoom siv organic thiab inorganic, tuaj yeem txhim kho hnav thiab tawg hauv fiberglass daim ntaub ntawv thiab txhim kho kev sib txuas ntawmfiberglassthiab composite resins. Lawv tau siv dav hauv fiberglass impregnating cov neeg ua haujlwm.

02. Nwsfiberglasskev kos duab yog ib kauj ruam tseem ceeb los ntawm cov khoom siv raw mus rau cov fibers txuas ntxiv. Cov txheej txheem ntawm kev kos duab siab -kub molten iav rau hauv micron- fibers loj los ntawm ntau txhiab micropores yog fraught nrog cov teeb meem. Cov teeb meem no tshwm sim los ntawm kev sib txhuam, hluav taws xob zoo li qub, thiab kev tawg ntawm cov fiberglass bundles, ua lub luag haujlwm ntawm fiberglass sizing agents tseem ceeb heev.

Txo kev sib txhuam: Lubricating Cheebtsam txo kev sib txhuam ntawm cov fiberglass thiab cov khoom siv, tiv thaiv kev hnav thiab tawg thaum lub sij hawm kev kos duab thiab xyuas kom meej ib tug du thiab zoo fiberglass nto.

Kev hloov pauv hloov pauv: Silane coupling cov neeg ua haujlwm ua "cov txuas txuas molecular," tsim cov resin- cov phooj ywg txheej ntawmfiberglassnto, nteg lub hauv paus rau kev sib txuas nrog cov organic resins.

Txhim kho kev ua tau zoo: Qhov no txhim kho cov fiberglass cov qauv pob, dispersion, thiab antistatic zog, txhim kho nws cov kev siv tau hauv cov ntawv thov tom ntej.

03 Silane coupling agents tuaj yeem txhim kho qhov adhesion ntawm fiberglass thiab organic resin interface, yog li txhim kho cov khoom siv ntawm fiberglass composites.

Thaum silane siv rau hauv fiber ntau impregnation, nws thawj hydrolyzes los tsim silanol pawg. Cov pab pawg silanol no tsis ruaj khov thiab yuav dhau mus ua cov kua dej ua kua polymerization, yog li tsim cov oligomers loj uas sib sau ua ke ntawmfiberglassthiab tsim covalent bonds nrog hydroxyl pawg ntawm fiberglass nto. Nyob rau tib lub sijhawm, cov pab pawg nquag ntawm lwm qhov kawg ntawm silane tuaj yeem hnov ​​​​mob nrog cov pab pawg nquag hauv cov organic resin, yog li tsim lub network cross-txuas cov qauv ntawm fiberglass thiab cov organic resin.