Tshuaj lom neeg muaj pes tsawg leeg ntawm plywood thiab nws cov kev cuam tshuam rau nws cov khoom

Plywood yog ib qho khoom siv ntoo tsim los ntawm ntau txheej ntawm cov ntoo nyias nyias (pas dej) los ntawm gluing, sib dhos, thiab kub nias. Nws cov qauv kev ruaj ntseg thiab cov khoom siv lub cev yog ze ze rau nws cov tshuaj lom neeg muaj pes tsawg leeg. Cov tshuaj lom neeg muaj kuab lom ntawm plywood suav nrog tsis yog lub ntuj tivthaiv ntawm ntoo nws tus kheej, tab sis kuj cov nplaum thiab lwm yam tshuaj ntxiv rau hauv kev tsim khoom. Cov feem no ua ke ua ke cov plywood lub zog, kav ntev, thiab ib puag ncig kev hloov tau.

Tshuaj lom neeg muaj pes tsawg leeg ntawm ntoo matrix

Cov thawj cov khoom siv raw rau plywood yog ntoo, uas muaj tshuaj lom neeg muaj feem muaj feem ntau ua ke ntawm cellulose, Cellulose, thawj cov qauv txheej txheem ntawm cov ntoo hluav taws xob ntoo, yog tsim los ntawm cov piam thaj ua ke tau sib txuas, muab nws lub zog siab thiab ua kom nruj. Hemicellulose, ib tug branlyed polysaccharide uas suav nrog xylan thiab manican, pabcuam rau txuas cov microfibrils rau ligneve ntawm phab ntsa tawv. Lignin, ib qho yeeb yaj kiab uas muaj ntxhiab tsw qab, ua kom cov khoob ntawm cellulose thiab cov xim tawv, muab cov rigidity thiab kev tawm tsam thiab tiv thaiv. Ib qho ntxiv, cov ntoo muaj cov kev rho tawm me me (xws li cov khoom sib xyaw (xws li cov hmoov tshauv (xws li cov poov tshuaj, thiab silicacium, thiab silicon), uas tuaj yeem cuam tshuam rau kev sib raug zoo ntawm cov nplaum.

Tshuaj lom neeg cov khoom ntawm cov nplaum

Qhov kev sib txuas lus sib txuas ntawm cov plywood nyob ntawm cov nplaum. Feem ntau siv tshuaj nplaum tshuaj suav nrog phenol {{1} {{makic formaldehyde resin (}}} ill formaldehyde resin (muf). Phenolic Resin yog tsim los ntawm phenol thiab formaldehyde thiab muaj nws haum rau sab nraum zoov lossis hauv siab} urity urity ib puag ncig. Urea {- ay formaldehyde cob, tsim los ntawm cov tshuaj tiv thaiv ntawm urea thiab formaldehyde, yog qhov tsis tshua muaj nqi tab sis muaj dej tsis zoo. Nws yog feem ntau tau hloov kho nrog melamine txhawm rau txhim kho nws cov kev ua tau zoo. Cov nplaum no ua ib peb -} desension network qauv network thaum lub sij hawm kho tsev, khov kho cov veneers. Tsis tas li ntawd, Isocyanate Adhesives (MDI) tau dhau los ua neeg nyiam ua phooj ywg plywood vim lawv formaldehyde {{{{15} {{tiv taus cov khoom.

Lub luag haujlwm ntawm kev siv tshuaj ntxiv

Txhawm rau txhim kho kev ua tau zoo ntawm plywood, nplaim taws retardants, tshuaj khaws dej, lossis dej - cov tshuaj lom neeg feem ntau ntxiv thaum tsim khoom. Piv txwv li, Boron tebchaw txhim kho cov nplaim hluav taws xob, tooj {}} chromium tiv thaiv, thiab pulaffin ciab emulsions txhim kho dej tsis kam. Cov tshuaj no ntxiv txhim kho cov kev hloov kho ib puag ncig thiab kev pabcuam lub neej ntawm plywood los ntawm kev nkag mus lossis rov qab nrog saum npoo.

Hauv cov ntsiab lus, cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov plywood yog lub hauv paus ntawm nws cov khoom: tus ntoo ua kom muaj zog sib txuam, thiab cov tshuaj ntxiv uas tsis muaj kev ua haujlwm tshwj xeeb. Nkag siab txog kev ua haujlwm uas cov tshuaj tivthaiv no tuaj yeem pab ua kom ua kom zoo dua cov txheej txheem cov txheej txheem thiab cov ntawv thov.