摘要
采用加入木质素磺酸钠的方法改性脲醛树脂胶粘剂,以降低胶粘剂中游离甲醛为主要目的,主要研究了磺化木质素加入量对胶粘剂游离甲醛含量及拉伸强度的影响。实验结果表明磺化木质素加入量为30%时,胶粘剂的拉伸强度最大,达到8.67Mpa;磺化木质素的加入量为40%时,游离甲醛含量最小,为0.18%.
The UF resin adhesive was modified by lignosulfonate; the main idea was to deduce the free-formaldehyde in adhesive. The effect of LS on properties of product on free-formaldehyde and tensile strength was investigated. The experiment showed that tensile strength reached 8.67 Mpa when the product LS property 30% and free-formaldehyde decreased to 0.18% when the product LS property was 40%.
出处
《贵州工业大学学报（自然科学版）》
CAS
2004年第1期82-84,共3页
Journal of Guizhou University of Technology(Natural Science Edition)
基金
贵州省科技厅科研基金资助项目[(2002)1057]
关键词
磺化木质素
改性
脲醛树脂
胶粘剂
游离甲醛
lignosulfonate
urea formaldehyde resin
modification
adhesive
free-formaldehyde
