| 丙烯酸树脂-硅溶胶/封端异氰酸酯无醛人造板粘合剂的制备及性能表征 |
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| 引用本文： | 李轩,沈一丁,李小瑞,费贵强,孟祥青. 丙烯酸树脂-硅溶胶/封端异氰酸酯无醛人造板粘合剂的制备及性能表征[J]. 功能材料, 2011, 42(9) |
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| 作者姓名： | 李轩 沈一丁 李小瑞 费贵强 孟祥青 |
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| 作者单位： | 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021 |
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| 基金项目： | 国家自然科学基金资助项目(50973057); 陕西省13115资助项目(2008ZDKG-51) |
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| 摘 要： | 以聚乙烯醇（PVA）为高分子分散剂,丙烯酸（AA）、N-羟甲基丙烯酰胺（NMA）、苯乙烯（St）、丙烯酸丁酯（BA）为单体,采用无皂种子乳液聚合法制备了稳定且性能优异的丙烯酸树脂乳液。以此丙烯酸树脂乳液为主剂,硅溶胶（Sil）和封端异氰酸酯（HDI）为外加交联剂复合制得性能优异的无醛人造板粘合剂。实验讨论了其合成影响因素,并优化了合成工艺条件。研究表明,当m（PVA）=8%,m（AA）=8%,m（NMA）=4%,n（BA）∶n（St）=2∶1,m（Sil）=10%,m（HDI）=8%时,此粘合剂具有优异的应用效果。当以施胶量为250g/m2进行施胶时,细木工板的胶合强度达0.82MPa,横向静曲强度达20.5MPa,均符合国家标准。并用IR、TG对其进行了表征。
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| 关 键 词： | 粘合剂 异氰酸酯 硅溶胶 丙烯酸树脂 胶合强度 |
Preparation and characterization of acrylics resin-silicasol/isocyanate wood adhesive without formaldehyde |
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| LI Xuan,SHEN Yi-ding,LI Xiao-rui,FEI Gui-qiang,MENG Xiang-qing. Preparation and characterization of acrylics resin-silicasol/isocyanate wood adhesive without formaldehyde[J]. Journal of Functional Materials, 2011, 42(9) |
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| Authors: | LI Xuan SHEN Yi-ding LI Xiao-rui FEI Gui-qiang MENG Xiang-qing |
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| Affiliation: | LI Xuan,SHEN Yi-ding,LI Xiao-rui,FEI Gui-qiang,MENG Xiang-qing(Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Ministry of Education Shaanxi University of Science & Technology,Xi'an 710021,China) |
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| Abstract: | With polyvinyl alcohol(PVA) as polymeric colloid stabilizer,a kind of surfactant-free copolystyrene-acrylat latex with good stable and excellent property was successfully synthesized by reacting styrene(St),butyl acrylate(BA),N-hydroxymethyl acrylamide(NMA) and acrylic acid(AA).The copolystyrene-acrylat latex as the main agent,silicasol and isocyanate as cross-linking agent,a kind of wood adhesive without formaldehyde was synthesized by copolystyrene-acrylat latex,silicasol and isocyanate.At the same time,t... |
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| Keywords: | adhesive isocyanate silicasol copolystyrene-acrylat latex bonding stength |
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