Vim formaldehyde-based adhesives feem ntau yog siv nyob rau hauv qhov ntawm blockboard, cov khoom tiav yuav tso tawm dawb formaldehyde ntau dua los yog tsawg dua. Thaum twg cov ntaub ntawv dawb formaldehyde tshaj li ib qho txwv, nws yuav cuam tshuam rau tib neeg kev noj qab haus huv. Qhov txheeb xyuas qhov nyiaj ntawm formaldehyde tso tawm los ntawm blockboard yog ib txoj kev nyuab heev, thiab formaldehyde emission ntawm lub blockboard yog ib qho yooj yim thiab ua ntej txiav txim siab los ntawm cov nram qab no. Ua ntej, muab cov khoom tsis pub siv rau hauv ib lub tsev me me, kaw qhov rooj thiab lub qhov rais, thiab muab cia rau ib lub sijhawm ua ntej nkag mus hauv chav. Yog tias tsis muaj pungent qhov ntswg tsis hnov tsw, nws txhais tau hais tias cov kev tso tawm ntawm formaldehyde ntawm lub blockboard me me, thiab kev siv yuav tsis cuam tshuam rau tib neeg kev noj qab haus huv; Yog tias qhov tsis hnov tsw loj los yog muaj kev xav ntawm tearing, nws txhais tau hais tias lub formaldehyde emission ntawm blockboard tej zaum yuav siab dua.
Rau qhov teeb meem ntawm formaldehyde ntawm blockboard, qhov pore loj ntawm lub qhov pores hauv nruab nrab yog nruab nrab ntawm 0.27 thiab 0.98 nm, uas yog nyob rau hauv ib lub lead ua. Tib lub sij hawm, nws muaj zog hluav taws xob cov khoom. Lub molecular diameters ntawm formaldehyde, ammonia, benzene, toluene thiab xylene yog tag nrho ntawm 0.4 thiab 0.62 nanometers, thiab lawv yog cov tag nrho cov roj ntsha molecules. Lawv muaj cov yam ntxwv ntawm cov khoom siv tshwj xeeb tshaj tawm cov teeb meem xws li formaldehyde, benzene thiab TVOC, thiab purify lawv. Cov nyhuv ntawm huab cua hauv tsev. Nws adsorbs thiab decomposes formaldehyde thiab tuaj yeem raug rov qab tom qab kis tau lub hnub.
