Urea Formaldehyde Kua nplaum hmoov, Npaj Txhij Rau Kev Xa Khoom ~

Kev piav qhia txog khoom
Urea-formaldehyde resin (UF), tseem hu ua urea-formaldehyde resin, yog polycondensation ntawm urea thiab formaldehyde nyob rau hauv qhov kev ua ntawm tus catalyst (alkaline lossis acidic catalyst) los tsim cov urea-formaldehyde resin pib, thiab tom qab ntawd tsim cov theem kawg tsis yaj thiab tsis yaj nyob rau hauv qhov kev ua ntawm tus neeg sawv cev curing lossis additive. Thermosetting resin. Kho urea-formaldehyde resin yog sib dua hauv xim dua li phenolic resin, translucent, tiv taus cov kua qaub tsis muaj zog thiab alkali tsis muaj zog, muaj cov khoom rwb thaiv tsev zoo, tiv taus hnav zoo heev, thiab pheej yig. Nws yog ntau yam siv ntau tshaj plaws ntawm cov nplaum, tshwj xeeb tshaj yog nyob rau hauv Kev tsim ntau yam khoom cuav boards hauv kev lag luam ua ntoo, urea-formaldehyde resin thiab nws cov khoom hloov kho suav txog li 90% ntawm tag nrho cov nplaum siv. Txawm li cas los xij, urea-formaldehyde resin yooj yim rau decompose thaum raug rau cov kua qaub muaj zog thiab alkalis. Nws muaj kev tiv thaiv huab cua tsis zoo, tsis zoo viscosity pib, shrinkage loj, brittleness, dej tsis kam, thiab yooj yim laus. Cov laug cam cuav tsim nrog urea-formaldehyde resin tso tawm formaldehyde thaum lub sijhawm tsim khoom thiab siv. teeb meem, yog li nws yuav tsum tau hloov kho.

Daim Ntawv Thov
Nws siv tau rau hauv cov khoom uas tsis xav tau dej tsis kam thiab dielectric zog, xws li cov hlua fais fab, cov hloov pauv, cov tes tuav tshuab, cov khoom siv ntsuas, cov pob qhov rooj, cov khoom siv niaj hnub, kho kom zoo nkauj, cov vuas mahjong, cov hau chav dej, thiab kuj siv tau rau hauv kev tsim qee cov khoom siv rooj tog.

Urea-formaldehyde resin yog hom nplaum uas siv ntau tshaj plaws. Tshwj xeeb tshaj yog hauv kev tsim ntau yam khoom siv hauv kev lag luam ua ntoo, urea-formaldehyde resin thiab nws cov khoom hloov kho suav txog li 90% ntawm tag nrho cov nplaum siv.