刘同达,杜官本,黄腾华,潘礼成,杨龙.化学活性胶合界面增强生物质胶黏剂的木材胶合性能[J].包装工程,2024,45(23):1-9.
LIU Tongda,DU Guanben,HUANG Tenghua,PAN Licheng,YANG Long.Wood Bonding Properties of Biomass Adhesives Enhanced by Chemically Active Bonding Interface[J].Packaging Engineering,2024,45(23):1-9. |
| 化学活性胶合界面增强生物质胶黏剂的木材胶合性能 |
| Wood Bonding Properties of Biomass Adhesives Enhanced by Chemically Active Bonding Interface |
| 投稿时间：2024-10-23 |
| DOI：10.19554/j.cnki.1001-3563.2024.23.001 |
| 中文关键词: 活化木材表面 生物质基胶黏剂 化学胶合界面 耐水性 |
| 英文关键词: activated wood surface biomass-based adhesive chemical bonding interface water resistance |
| 基金项目:国家重点研发计划(2023YFD2201500);云南省重大科技专项(202402AE090027) |
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| 中文摘要: |
| 目的 开发生物质胶黏剂并将其应用于木质复合材料的制备，并深入探究化学活性胶合界面构建对胶合性能的影响。方法 对单宁进行氧化处理，同时对纤维素进行氨基功能化改造，以二者为原料设计单宁-纤维素生物质基胶黏剂，并通过3-缩水甘油醚氧基丙基三甲氧基硅烷对天然木材表面接枝，构建富含环氧基团的活性木材表面。在热压过程中，活化木材表面上的环氧基团与胶黏剂中的—NH2基团发生反应，从而构建化学活性胶合界面。通过DSC、DMA以及力学性能等测试，深入探究了化学活性胶合界面构建对胶合性能的影响。结果 成功构建了超强、耐水型全生物质的木材胶合界面，胶合试件的干强度、热水强度和沸水强度分别为3.27、2.15和1.85 MPa，热水强度和沸水强度实现了从0到2.15 MPa和从0到1.85 MPa的显著提升。结论 胶黏剂与木材表面的相互作用，即胶黏剂与化学活性木材表面之间形成的化学胶合界面，显著提升了胶合产品的胶合强度和耐水性能。 |
| 英文摘要: |
| The work aims to develop a bio-based adhesive, apply it to the preparation of wood-based composites and further investigate the effect of chemical activated bonding interface construction on the bonding properties. Tannin was oxidized and cellulose was modified with amino group, and a tannin-cellulose biomass-based adhesive was designed, and an activated wood surface rich in epoxy groups was constructed by grafting 3-glycidoxypropyltrimethoxysilane to the natural wood surface. A chemical activated bonding interface was constructed by reacting the epoxy groups on the activated wood surface with the —NH2 groups in the adhesive during the hot-pressing process. The effect of chemical activated bonding interface construction on the bonding properties was explored by DSC, DMA, and mechanical properties tests. A ultrastrong, water-resistant, all-biomass wood bonding interface was constructed, and the dry, hot, and boiling water bonding strengths of the bonding specimens were 3.27, 2.15, and 1.85 MPa, respectively. The wet strength increased significantly from 0 MPa to 2.15 MPa and 1.85 MPa. The interaction between the adhesive and the wood surface, i.e., the formation of a chemical bonding interface between the adhesive and the chemical activated wood surface, significantly enhances the bonding properties and water resistance of the bonding products. |
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