NIU Er-yan, ZHANG Li-fang, ZHANG Long-fei, et al. Influence of Inorganic Fire Retardants on Curing of Urea Formaldehyde Resin. [J]. China Wood Industry 29(5):5-9(2015)
NIU Er-yan, ZHANG Li-fang, ZHANG Long-fei, et al. Influence of Inorganic Fire Retardants on Curing of Urea Formaldehyde Resin. [J]. China Wood Industry 29(5):5-9(2015) DOI: 10.19455/j.mcgy.2015.05.001.
Influence of Inorganic Fire Retardants on Curing of Urea Formaldehyde Resin
Four inorganic fire retardants,melamine cyanurate(MCA),melamine phosphate(MP),zinc borate(ZB)and phosphate sulfate salt(PSS),were selected to investigate the effects of inorganic fire retardants on curing reaction of urea formaldehyde(UF)resin by differential scanning calorimetry(DSC).We found that resin gel time was extended by adding ZB.However,pH resin value decreased by adding MCA,PSS and MP resulting in shortened gel time and lower resin curing start temperature.Medium density fiberboards(MDF)were manufactured with UF resin using the above-mentioned fire retardants.We found that the fire retardant treated MDF samples had lower internal bond strength(IB)than control MDF samples.
关键词
无机阻燃剂脲醛树脂固化差示扫描量热法
Keywords
inorganic fire retardantsurea-formaldehyde resincuringdifferential scanning calorimetry