E1 MDF yog dab tsi?
E1 MDF yog dab tsi?

Video: E1 MDF yog dab tsi?

Video: E1 MDF yog dab tsi?
Video: Leng Yang - Yog Vim Dab Tsi (Official Full Song | Nkauj Tawm Tshiab) 2020/05/24 2024, Lub peb hlis ntuj
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Qhov Sib Txawv Ntawm Tus Qauv E0, E1 Thiab E2 Of Mdf Pawg thawj coj saib? - Lub Rau Hli 02, 2018- E0 yog tus nqi ntawm formaldehyde tso tawm tsawg dua lossis sib npaug li 0.5 mg/l. E1 yog tus nqi ntawm formaldehyde tso tawm tsawg dua lossis sib npaug rau 9.0mg/100g. E2 yog tus nqi ntawm formaldehyde tso tawm tsawg dua lossis sib npaug rau 30.0mg/100g.

Ib sab ntawm qhov no, e1 ntawv pov thawj txhais tau li cas?

Qhov no yog lub cim los qhia chav kawm tso pa tawm. Cov chav tso pa tawm qhia txog tus nqi ntawm formaldehyde tso tawm los ntawm cov khoom siv ntoo. Qhov txawv no yog ua ntawm cov chav kawm E1 , E2, thiab E3, nrog rau chav kawm E1 muaj qhov qis tshaj ntawm cov pa tawm.

Ib yam li ntawd, vim li cas thiaj li tau txwv MDF hauv Asmeskas? Invented nyob rau hauv Tebchaws Meskas , nws yog cov hmoov av ntoo thiab seem ua ke ua ke los ntawm cov tshuaj uas muaj formaldehyde - tau lees paub tias muaj carcinogen. Xyoo 1994, cov lus xaiv tau nthuav tawm hauv kev lag luam ntoo hauv tebchaws Askiv uas MDF tab tom yuav txwv hauv tebchaws Meskas thiab Australia vim muaj kev tso tawm formaldehyde.

Ua qhov no hauv kev txiav txim siab, puas yog MDF ntoo ua mob qog noj ntshav?

MDF yog kev tsim qauv ntoo cov khoom ua los ntawm sawdust sib txuas ua ke nrog urea-formaldehyde nplaum. Formaldehyde xav tias yog ib qho kab mob qog noj ntshav , thiab MDF muaj qee qhov siab tshaj plaws ntawm urea-formaldehyde adhesives tawm ntawm txhua qhov kev tsim kho ntoo cov khoom uas siv nws.

Puas muaj qib sib txawv ntawm MDF?

Feem ntau MDF tuaj yeem tawg ua peb pawg: Lub Teeb MDF , Txuj Qib MDF & Kev Kub Siab MDF . Txuj qib MDF yog tsim los ntawm cov ntoo ntoo nrog cov khoom siv hluavtaws nplaum los ua lub rooj tsavxwm.

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