Cov txheej txheem tsim khoom ntawm tooj liab clad laminate (CCL) yog rau impregnate cov khoom siv uas txhawb nqa nrog organic cob thiab ua kom qhuav nws los ua ib qho expreg. Ib qho seem ua ntawm ob peb prepregs laminated ua ke, ib lossis ob sab npog nrog tooj liab ntawv ntawv, thiab ib phaj-puab cov khoom tsim los ntawm kub nias.
Los ntawm tus nqi taw tes pom, tooj liab clad laminates tus account li 30% ntawm tag nrho cov pcb tsim. Cov ntaub ntawv nyoos ntawm tooj liab clad laminates yog iav fiber ntau ntaub, ntoo ntawv ci, tooj liab resin thiab lwm yam ntaub ntawv. Ntawm lawv, tooj liab ntawv ci yog cov khoom siv tseem ceeb rau kev tsim cov qauv coller clad laminates. , 80% ntawm cov ntaub ntawv feem ntau suav nrog 30% (cov phaj nyias nyias) thiab 50% (phaj tuab).
Qhov sib txawv hauv kev ua tau zoo ntawm ntau hom tooj liab clad laminates feem ntau yog manifested hauv qhov sib txawv hauv cov ntaub ntawv fiber ntau thiab cov resins lawv siv. Cov khoom siv raw tseem ceeb uas yuav tsum tau tsim PCB suav nrog tus tooj liab clad laminate, tooj liab thiab lwm yam tooj liab, thiab lwm yam.
Lub PCB kev lag luam tau loj hlob tsis tu ncua
Qhov dav dav siv ntawm PCBs yuav muaj kev txhawb nqa yav tom ntej kev thov rau cov xov paj hluav taws xob hauv tshuab hluav taws xob. Lub ntiaj teb PCB tso zis tus nqi hauv 2019 yog li ntawm 65 billion US las, thiab Suav PCB lag luam yog qhov ruaj khov. Hauv 2019, Suav PCB cov khw muag khoom muaj txiaj ntsig yog ze li ntawm 35 billion US las. Tuam Tshoj yog thaj av loj tshaj plaws nyob hauv lub ntiaj teb, muaj npe rau ntau dua ib nrab ntawm cov neeg thoob ntiaj teb muaj nqis, thiab yuav txuas ntxiv mus ntxiv yav tom ntej.
Kev faib tawm hauv cheeb tsam ntawm cov neeg thoob ntiaj teb pcb tso zis. Qhov ntsuas ntawm PCB tso zis cov nqi hauv Asmeskas, Tebchaws Europe, thiab Nyiv hauv ntiaj teb no tau tshwm sim, thaum cov zis ntawm Asia (tshwj tsis yog Nyiv) tau nce nrawm. Ntawm lawv, txoj kev faib ua feem ntawm Tuam Tshoj Mainland tau nce sai. Nws yog lub ntiaj teb PCB kev lag luam. Nruab nrab ntawm kev hloov chaw.