Kev hloov pauv ntawm calcium carbonate
Hnyav calcium carbonate tuaj yeem ua kom cov khoom ntim ntawm cov yas, txo cov nqi, txhim kho hardness thiab nruj, txo qhov shrinkage tus nqi ntawm cov khoom yas, thiab txhim kho qhov seem stability;txhim kho cov kev ua tau zoo ntawm cov yas, txhim kho nws cov cua sov, txhim kho astigmatism ntawm cov yas, tiv thaiv tib lub sijhawm, nws muaj qhov pom tseeb los ntawm cov nyhuv toughening ntawm notched cuam tshuam lub zog thiab viscous txaus thaum lub sij hawm sib tov.
Mechanical zog
Calcium carbonate tau siv los ua inorganic muab tso rau hauv cov yas ntim rau ntau xyoo.Yav dhau los, calcium carbonate feem ntau yog siv los ua cov khoom siv rau lub hom phiaj tseem ceeb ntawm kev txo nqi, thiab tau txais txiaj ntsig zoo.Nyob rau hauv xyoo tas los no, nrog rau kev siv dav hauv kev tsim khoom thiab ntau qhov kev tshawb fawb, nws tseem tuaj yeem ua kom muaj cov calcium carbonate ntau yam tsis muaj kev txo qis ntau lawm.
Tom qab sau cov calcium carbonate, vim qhov nyuaj ntawm calcium carbonate, lub hardness thiab nruj ntawm cov khoom yas yuav raug txhim kho, thiab cov khoom siv kho tshuab yuav raug kho kom zoo.Lub zog tensile thiab flexural lub zog ntawm cov khoom tau raug txhim kho, thiab elastic modulus ntawm cov khoom yas tau raug kho kom zoo.Piv nrog FRP, nws lub zog tensile, flexural zog thiab flexural modulus yog roughly tib yam li cov FRP, thiab cov thermal deformation kub feem ntau siab dua FRP, qhov tsuas yog inferior rau FRP yog nws cov qis notched cuam tshuam lub zog, tab sis qhov tsis zoo no muaj peev xwm. kov yeej los ntawm kev ntxiv me me ntawm cov iav fibers luv luv.
Rau cov kav dej, sau cov calcium carbonate tuaj yeem txhim kho ntau yam ntawm nws cov ntsuas, xws li lub zog tensile, steel pob indentation lub zog, notched cuam tshuam lub zog, viscous txaus, kub tsis kam, thiab lwm yam.;tab sis tib lub sij hawm nws yuav txo tau ntau yam ntawm nws cov toughness indicators, xws li elongation ntawm so, ceev nrooj tawg, cuam tshuam lub zog ntawm yooj yim txhawb nqa beams, thiab lwm yam.
Kev ua haujlwm thermal
Tom qab ntxiv cov fillers, vim qhov zoo thermal stability ntawm calcium carbonate, thermal expansion coefficient thiab shrinkage tus nqi ntawm cov khoom yuav raug txo nyob rau hauv tib txoj kev, tsis zoo li iav fiber reinforced thermoplastics, uas muaj ntau shrinkage tus nqi nyob rau hauv ntau yam.Tom qab ntawd, lub warpage thiab curvature ntawm cov khoom yuav raug txo, uas yog qhov loj tshaj feature piv nrog cov fiber ntau muab tub lim, thiab lub thermal deformation kub ntawm cov khoom yuav nce nrog rau qhov nce ntawm cov muab tub lim.
radioactivity
Cov muab tub lim muaj qee lub peev xwm nqus cov duab hluav taws xob, thiab feem ntau tuaj yeem nqus tau 30% mus rau 80% ntawm cov teeb meem ultraviolet rays los tiv thaiv kev laus ntawm cov khoom yas.
Post lub sij hawm: Oct-27-2022