| 改性淀粉基木材用环保胶粘剂的合成研究 |
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| 引用本文： | 王靖哲,乔文龙,张龙. 改性淀粉基木材用环保胶粘剂的合成研究[J]. 中国胶粘剂, 2009, 18(5) |
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| 作者姓名： | 王靖哲 乔文龙 张龙 |
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| 作者单位： | 长春工业大学精细化工与绿色化学技术研究所,吉林,长春,130012 |
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| 摘 要： | 对淀粉进行糊化、氧化处理后,与聚乙烯醇(PVA)接枝反应制得胶粘剂主剂,然后分别以三聚氰胺甲醛树脂(MF)、聚氨酯(PU)预聚体作为胶粘剂主剂的改性剂,制得了木材用胶粘剂。探讨了各种原料的用量、反应条件及改性剂种类等对胶粘剂性能的影响。结果表明:胶粘剂适宜的制备工艺条件为淀粉8.0g,PVA12.0g,蒸馏水100mL,氧化剂(次氯酸钠)0.16g,引发剂(过硫酸钾)0.14g,乳化剂OP-10和十二烷基苯磺酸钠(SDS)各1.0g,改性剂12.0g;淀粉糊化温度85℃,pH值9～10,淀粉预糊化时间20min;氧化时间30min,接枝反应温度95℃,pH值2～3,接枝反应时间20min;改性反应温度60℃,pH值6～7,改性反应时间1.5h。由该胶粘剂压制的层压板,其粘接强度(1.00～1.25MPa)和甲醛释放量(≤0.5mg/L)等指标符合GB/T5849-2006标准要求。
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| 关 键 词： | 改性 胶粘剂 聚乙烯醇 淀粉 三聚氰胺甲醛树脂 聚氨酯 预聚体 |
Study on synthesis of modified starch-based environment-friendly adhesive for wood |
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| WANG Jing-zhe,QIA Wen-long,ZHANG Long. Study on synthesis of modified starch-based environment-friendly adhesive for wood[J]. China Adhesives, 2009, 18(5) |
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| Authors: | WANG Jing-zhe QIA Wen-long ZHANG Long |
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| Affiliation: | Technical Research Institute of Fine Chemical Engineering and Green Chemistry;Changchun University of Technology;Changchun 130012;China |
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| Abstract: | The adhesive main agent was prepared by grafting reaction between polyvinyl alcohol(PVA) and starch modified by pasting and oxidation,then the adhesive for wood was prepared with melamine-formaldehyde resin(MF) and polyurethane(PU) prepolymer as modifiers of adhesive main agent. The influences of various mate-rials contents,reaction conditions and modifiers kinds were investigated on adhesive performances. The results showed that the preparing conditions of adhesive were suitable when mass of starch,PVA,oxi... |
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| Keywords: | modified adhesive PVA starch melamine-formaldehyde resin PU prepolymer |
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