![]() Cov tshuaj nplaum nplaum kaw cov microcracks, uas ua rau lub log tsheb tshiab rau lub sijhawm luv luv. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov khoom noj khoom haus no yog tib yam. Tsis tas li ntawd, txoj kev av yuav lo rau nws zoo kawg nkaus. Cov xim ntawm lub log tsheb yuav txhim kho, tab sis luv luv, qhov tsis kam ntawm qab zib rau dej yog xoom. Qee zaum thiab ib nrab tinting, piv txwv li, nrog cov khoom ntawm cov pa roj carbon dawb (soot) - cov xim ntuj.įlavoring additives ntawm cov dej haus tsis tas yuav tsum tau ntawm no, yog li koj tuaj yeem siv cov kua qab zib tsis muaj zog. Kev txuag cov nyhuv ntawm refreshing compositions los mus ntxuav tawm txawv teb chaws inclusions los ntawm cov kab nrib pleb, softening txheej txheej, thiab sau microscopic voids. Nyob rau lub sij hawm, txheej txheej ntawm lub log tsheb dries tawm, ua npog nrog ib tug imperceptible network ntawm cov kab nrib pleb nyob rau hauv uas txoj kev plua plav accumulates, uas muab ib tug tsis kaj siab greyish tint es tsis txhob ntawm cov hniav dub.Lub hnub ci muaj zog ultraviolet thiab infrared Cheebtsam, nyob rau hauv cov kev cuam tshuam ntawm cov tshuaj tiv thaiv yog sai sai, nws yog ib txwm sau ntawv rau khaws roj hmab nyob rau hauv ib tug darkened chav tsev.lub xub ntiag ntawm cov tshuaj reagents nyob rau hauv cov huab cua thiab txoj kev av txhim kho oxidation, dej ua hauj lwm raws li ib tug hnyav rau lawv, thiab tej zaum kuj yog ib tug catalyst.ib qho kev hloov ntawm cov xim ntuj nyob rau hauv kev cuam tshuam ntawm atmospheric oxygen, qhov no yog ib qho tshuaj lom neeg muaj zog heev uas cuam tshuam rau cov khoom siv roj hmab, tshwj xeeb tshaj yog los ntawm cov roj hmab hluavtaws pheej yig, uas mus rau tag nrho cov qauv siv nyiaj.Roj hmab aging yog tshwm sim los ntawm ntau yam: Cov cim yuam kev hauv lub Hoobkas los ntawm tsheb hom.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |