人造板生产用改性脲醛树脂材料制备及应用效果

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中图分类号： TQ433.4+31 文献标志码：A

文章编号：1001-5922（2025）09-0086-04

Preparation and application effect of modified urea-formaldehyde resin material for wood-based panel production

TENG Keyong （Guangxi GaofengWuzhou Wood-based Panel Co.，Ltd.，Naning 53O215，China）

Abstract：In order to reduce the formaldehyde polltion causedbyadhesive in theproduction process of wood-based panels，A modified urea-formaldehyde resin material for wood-based panel production was prepared by modifying pure urea-formaldehyde resin by oxidizing lignin，and diferent oxidized lignin addition amounts were studied.The results showed that when the oxidized ligninadded to theresin material increased，the bondingstrengthand static bending strengthof thematerial increased firstand thendecreased，andtheformaldehydeemissionof wood-based panels decreased. When the addition of oxidized lignin was 2.4% ，the expansion rate of the prepared wood-based panel with 2 h water absorption thickness was only 3.12% ，and the water resistance was better. The formaldehyde emission was 1.21mg/（100g） ，which was reduced by 48.7% ，and the environmental protection was good.The internal binding strength and static bending strength were at the maximum，which wereO.55 and17.63 MPa，respectively. Key words：wood-based panel;lignin;urea-formaldehyderesin;internal bonding strength ;formaldehyde release

在传统人造板的制作过程中，常常需要加人以 “三醛胶”为主的胶粘剂，这会产生甲醛问题，影响

人居环境的安全性[1-2]。（剩余5905字）