| 云南松正交胶合木胶合工艺探索 |
| |
| 引用本文： | 张龙,彭思,王建和,卫佩行,黄素涌. 云南松正交胶合木胶合工艺探索[J]. 林产工业, 2020, 57(8): 19-24 |
| |
| 作者姓名： | 张龙 彭思 王建和 卫佩行 黄素涌 |
| |
| 作者单位： | 西南林业大学材料科学与工程学院,昆明 650224;宁波中加低碳新技术研究院有限公司,宁海 315600;江苏农林职业技术学院彩叶林木育种与培育国家长期科研基地,句容 212400 |
| |
| 基金项目： | 高职院校项目;国家自然科学基金;国家国际科技合作专项基金;云南省院士工作站项目;机电产品包装生物质材料国家地方联合工程研究中心资助项目 |
| |
| 摘 要： | 为探索云南松用于正交胶合木(CLT)制造的技术可行性,以剪切强度、木破率和剥离率研究了不同胶黏剂、施胶量和压力对云南松CLT胶合性能的影响。结果表明:云南松的物理力学性能和胶合性能达到北美ANSI/APA PRG 320-2019标准要求,云南松可用于CLT制造。不同胶黏剂、施胶量和压力对云南松CLT胶合性能影响显著(P<0.05)。随着施胶量增加,云南松CLT胶层剪切性能提高;随着压力增加,云南松CLT胶层剪切性能降低。从胶合性能和生产成本综合考虑,制造云南松CLT的较优工艺为:采用国产EPI(水性高分子异氰酸酯)胶黏剂,施胶量为220 g/m2,压力为0.8 MPa。
|
| 关 键 词： | 正交胶合木 云南松 剪切强度 木破率 剥离率 |
Exploration on the Pressing Parameters of Cross-laminated Timber(CLT)made from Pinus yunnanensis |
| |
| ZHANG Long,PENG Si,WANG Jian-he,WEI Pei-xing,HUANG Su-yong. Exploration on the Pressing Parameters of Cross-laminated Timber(CLT)made from Pinus yunnanensis[J]. China Forest Products Industry, 2020, 57(8): 19-24 |
| |
| Authors: | ZHANG Long PENG Si WANG Jian-he WEI Pei-xing HUANG Su-yong |
| |
| Affiliation: | (School of Materials Science and Engineering,Southwest Forestry University,Kunming 650224,P.R.China;Ningbo Sino-Canada Low-Carbon New Technology Institute Co.,Ltd.,Ninghai 315600,P.R.China;National Long-term Scientific Research Base of Breeding and Cultivation of Colored-leaf Trees,Jiangsu Vocational College of Agriculture and Forestry,Jurong 212400,P.R.China) |
| |
| Abstract: | In order to explore the technical feasibility of Pinus yunnanensis for Cross-laminated Timber(CLT)production,the effects of different adhesives,adhesive spread rate and pressure on the bonding properties of Pinus yunnanensis CLT were studied,and the bonding properties of Pinus yunnanensis CLT were evaluated by the shear strength,the percentage of wood failure and the rate of delamination of the bonding line.The results showed that the basic physical properties,mechanical properties and bonding properties of Pinus yunnanensis met the requirements of North American ANSI/APA PRG 320-2019 standard,and Pinus yunnanensis could be used for the manufacture of CLT.Different adhesives,adhesive spread rate and pressure had a significant effect on the bonding properties of of Pinus yunnanensis CLT(P<0.05).With the increase of adhesive spread rate,the shearing properties of Pinus yunnanensis CLT were improved;and as the pressure increased,the shearing properties of Pinus yunnanensis CLT decreased.From the comprehensive consideration of the bonding properties and production cost,the preferred processing parameters of Pinus yunnanensis CLT was domestic EPI adhesive,220 g/m2 adhesive spread rate,and 0.8 MPa pressure. |
| |
| Keywords: | Cross-laminated Timber(CLT) Pinus yunnanensis Shear strength Percentage of wood failure Rate of delamination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
