Development of Binderless board

无粘结剂板的开发

• 批准号: 15580142
• 负责人: SATO Masatoshi
• 金额: $ 2.05万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15580142/
• 关键词: Binderless board; Biomass; Utilization; Self-bonding mechanism; Performance evaluation; Water resistance; 植物バイオマス; メラルーカ; ケナフ; 接着耐久性; 竹; 製造条件

Kenaf binderless board has been developed as one of the effective utilization for Kenaf core part which is one of the abandon biomass resources. As the result, at high pressing temperature the water resistant properties of binderless boards were higher than for boards bonded with urea formaldehyde or urea melamine formaldehyde resins. And it was observed that there was no severe deterioration in the binderless board under the outdoor exposure test for one year.Moreover, thermal softening lignin, chemical bonds formed by free carboxylic acid, and increases in condensed structure in lignin were considered to be playing important role in the self-bonding mechanism. In contrast, furfural and cleavages of intermonomer linkages in lignin during the hot pressing process showed little contribution to the self-bonding.Concerning the manufacturing condition for binderless board, it is suggested that usual board manufacturing condition and device can be applied to produce the binderless board since pressing pressure and temperature is same as that of wood-based materials.In the future, binderless board will be become an important target for effective utilization of biomass waste, especially in developing countries where people have no or limited wood resources and no adequate chemical industries but a surplus of agricultural residues.

红麻无粘合剂板是作为废弃生物质资源之一的红麻核心部分的有效利用之一而开发的。结果，在高压制温度下，无粘合剂板材的防水性能高于用脲醛或脲三聚氰胺甲醛树脂粘合的板材。并且观察到，在户外暴露测试一年后，无粘结剂板没有出现严重劣化。此外，热软化木质素、游离羧酸形成的化学键以及木质素中缩合结构的增加被认为在自粘合机制中发挥着重要作用。相比之下，热压过程中糠醛和木质素中单体键合的断裂对自粘合贡献不大。关于无粘结剂板材的制造条件，建议采用通常的板材制造条件和设备来生产无粘结剂板材，因为压制压力和温度与木质材料相同。未来，无粘结剂板材将成为生物质废物有效利用的重要目标，特别是 在发展中国家，人们没有木材资源或木材资源有限，也没有足够的化学工业，但有过剩的农业残留物。

项目成果

Chemical change of kenaf core binderless boards during hot pressing <II> : effect on the binderless board properties

红麻芯无粘合剂纸板在热压过程中的化学变化<II>：对无粘合剂纸板性能的影响

• 发表时间: 2006
• 期刊: Journal of Wood Science Vol.52,No.3(先行オンライン版)
• 作者: Okuda N;Hori K;Sato M
• 通讯作者: Sato M

Chemical changes of kenaf core binderless boards during hot pressing (I): influence of the pressing temperature condition

• DOI: 10.1007/s10086-005-0761-4
• 发表时间: 2006-06
• 期刊: Journal of Wood Science
• 影响因子: 2.9
• 作者: N. Okuda;K. Hori;Masatoshi Sato

Water resistant properties of kenaf core binderless boards.

红麻芯无胶合板的防水性能。

• 期刊: Journal of Wood Science (in press)
• 作者: Okuda N;Sato M
• 通讯作者: Sato M

Water resistant properties of kenaf core binderless boards

红麻芯无胶合板的防水性能

• 期刊: Journal of Wood Science (in press)
• 作者: Okuda N;Hori K;Sato M
• 通讯作者: Sato M

Chemical changes of kenaf core binderless boards during hot pressing (II): effects on the binderless board properties

• DOI: 10.1007/s10086-005-0744-5
• 发表时间: 2006-06
• 期刊: Journal of Wood Science
• 影响因子: 2.9
• 作者: N. Okuda;K. Hori;Masatoshi Sato