| 间甲酚/木质素改性酚醛树脂竹胶板胶粘剂的研究 |
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| 引用本文： | 张琳,周文富.间甲酚/木质素改性酚醛树脂竹胶板胶粘剂的研究[J].沈阳大学学报,2014(1):24-29. |
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| 作者姓名： | 张琳 周文富 |
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| 作者单位： | 三明学院资源与化工学院,福建三明365004 |
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| 基金项目： | 教育部大学生创新基金资助项目（201211311001）. |
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| 摘 要： | 采用分次分步加料一锅煮合成法，以间甲酚和酸化的木质素磺酸钠来改性制取新的酚醛树脂胶粘剂．研究了酸化反应的时间，合成温度及投料比对胶粘剂性能的影响．结果表明：酸化反应2．5h，合成温度100℃，n（甲醛）：n（苯酚＋木质素）=0．75：1，n（问甲酚）：n（苯酚＋木质素）=0．10：1，n（木质素）：n（苯酚＋木质素）=0．30：1时含游离醛质量分数为0．10％，游离酚质量分数为0．25％，黏度0．38Pa·S，粘合强度2．0MPa，最后用红外光谱和紫外光谱对胶粘剂进行结构测试．
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| 关 键 词： | 酚醛树脂 胶粘剂 改性 木质素磺酸钠 间甲酚 |
Synthesis and Properties of M-cresol/Lignin-modified Phenolic Resin Bamboo Plywood Adhesives System |
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| Institution: | Zhang Lin, ,Thou Wenfu (College of Resources and Chemical Engineering, Sanming University, Sanming 365004, China) |
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| Abstract: | M-cresol and acidified sodium ligninosulfonate were used to modify and prepare new phenolic resin adhesive; step-by-step feeding one-pot synthesis method was adopted. Influences of acidizing time, reaction temperature, feed ratio on the properties of the adhesive were studied. The results show that under optimized condition of acidizing time 2. 5 h, temperature 100℃, n（HCHO） ： n（phenol＋lignin） =0. 75： 1 , 5% （mol） of phenol was replaced by M-cresol , lignin to 30%（mol） of phenol replace was replaced by lignin, mass fraction of free formaldehydewas 0. 10%, phenol 0. 25 %, fviscosity 0. 25 Pa · s, the bonding strength was 2 MPa, and the structure of adhesive was ascertained by infrared spectrum and ultraviolet spectrum. |
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| Keywords: | phenolic resin adhesive modification sodium lignosulfonate M-cresol |
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