Dab tsi yog cov yam ntxwv ntawm unsaturated resin? Unsaturated resin yog ib qho thermosetting resin uas solidifies rau hauv ib qho polymer insoluble thaum raug tshav kub los yog ib qho pib. Txawm li cas los xij, cov khoom siv polymer no muaj lub zog tsis muaj zog thiab tuaj yeem ua tau raws li kev siv feem ntau. Yog li ntawd, unsaturated resins tau dav siv thiab ua lub luag haujlwm tseem ceeb hauv yuav luag txhua qhov chaw ntawm lub neej. Thaum siv cov iav fiber ntau, cov khoom siv tsis zoo tuaj yeem yog cov khoom siv sib xyaw, feem ntau hu ua "glass reinforced yas" (FRP luv luv).
Dab tsi yog cov yam ntxwv ntawm unsaturated resin? Nws nyob ntawm qhov twg nws siv. Cov yam ntxwv ntawm unsaturated resin raws li cov khoom siv fiberglass:
1. Zoo corrosion kuj
Unsaturated resin yog cov khoom siv zoo corrosion kuj. Nws tuaj yeem tiv taus cov ntsiab lus dav dav ntawm cov kua qaub, alkalis, ntsev, feem ntau cov kuab tshuaj organic, dej hiav txwv, huab cua, thiab roj. Nws kuj yog heev resistant rau microorganisms. Nws yog dav siv nyob rau hauv roj av, tshuaj, tshuaj tua kab, tshuaj, dyes, electroplating, electrolysis, smelting, lub teeb kev lag luam, thiab lwm yam teb chaws economic teb. Tam sim no nws ua lub luag haujlwm uas tsis tuaj yeem hloov los ntawm lwm cov ntaub ntawv.
2. Lub zog muaj zog
Feem ntau, qhov ceev ntawm unsaturated resin yog 1.4-2.2g / cm3, uas yog 4-5 zaug sib zog dua hlau. Nws lub zog tsis yog me me, tshaj hlau, duralumin, thiab fir. Qhov no tseem ceeb heev rau aviation, aerospace, foob pob hluav taws, missiles, foob pob hluav taws, thiab cov khoom thauj, uas yuav tsum tau txo lawv tus kheej qhov hnyav thaum nce lawv lub zog. Piv txwv li, Boeing 747 jetliner siv 2.2 tons ntawm FRP qhov chaw nyob rau hauv cov qauv tseem ceeb, uas zoo txuag lub dav hlau roj, nce ceev, ncua roj teeb lub neej, thiab nce load. Qhov no yog txiav txim los ntawm cov yam ntxwv ntawm unsaturated resin.
3. Kev ua haujlwm kub dissipation tshwj xeeb
Cov thermal conductivity ntawm unsaturated resin yog 0.3-0.4Kcal/mhC, uas tsuas yog 1/100-1/1000 ntawm hlau, yog li txhua leej txhua tus xav tias nws yog ib qho zoo heev thermal rwb thaiv tsev cov ntaub ntawv. Qhov rooj thiab qhov rais ua los ntawm nws yog lub cim thib tsib ntawm cov khoom siv hluav taws xob tshiab hauv tsev. Tsis tas li ntawd, linear expansion coefficient ntawm FRP kuj yog me me thiab ze rau ntawm cov khoom siv hlau dav dav. Yog li ntawd, kev sib txuas ntawm FRP thiab hlau yuav tsis raug rau thermal expansion thiab ua kom muaj kev ntxhov siab, uas yog qhov zoo rau kev sib txuas nrog cov hlau substrates lossis cov pob zeb ua vaj tse.
4. Advanced processing technology
Cov khoom siv ua los ntawm cov khoom siv tsis zoo muaj cov txheej txheem ua haujlwm yooj yim, ib qho -lub sijhawm molding, tuaj yeem ua pwm ntawm qhov kub thiab txias, tuaj yeem ua kom sov thiab nias, tsis muaj qis -molecular los ntawm - cov khoom raug tsim thaum lub sijhawm kho, thiab tuaj yeem tsim cov khoom sib xws. Vim nws txoj kev ua tau zoo heev, nws tau siv dav hauv kev tsim cov khoom tsis yog - iav fiber ntau cov khoom siv xws li cov khoom siv tes ua, cov khoom siv marble, thiab cov xim polyester hauv xyoo tas los no.
5. Cov khoom siv hluav taws xob zoo heev
Unsaturated resin muaj cov khoom siv rwb thaiv tsev zoo heev thiab tuaj yeem tswj tau cov khoom zoo dielectric ntawm qhov siab. Nws tsis cuam tshuam txog xov tooj cua tsis muaj zog, tiv thaiv cov teebmeem electromagnetic, thiab muaj kev nkag mus rau microwave zoo. Nws yog ib qho khoom siv zoo tshaj plaws rau kev ua radomes. Siv nws los ua cov khoom siv insulating hauv cov ntsuas hluav taws xob, lub cev muaj zog, thiab cov khoom siv hluav taws xob tuaj yeem txhim kho lub neej kev pabcuam thiab kev ntseeg siab ntawm cov khoom siv hluav taws xob.
6. Cov khoom siv zoo heev
Unsaturated resin yog cov khoom sib xyaw ua ke raws li UPR, thiab iav fiber ntau yog cov khoom siv ntxiv. Ob leeg tau ua tiav rau hauv cov duab uas xav tau los ntawm ib qho - lub sijhawm ua. Yog li ntawd, FRP tsis yog tsuas yog cov khoom siv tab sis kuj yog cov qauv. Cov yam ntxwv ntawm unsaturated resin tuaj yeem muab kev ua si tag nrho rau nws qhov zoo.
