To overcome warping in thin bamboo bundle veneer laminated composites(TBLC),their hydrothermal deformation characteristics were systematically investigated in this study.It was found that TBLCs accelerated the release...To overcome warping in thin bamboo bundle veneer laminated composites(TBLC),their hydrothermal deformation characteristics were systematically investigated in this study.It was found that TBLCs accelerated the release of internal stress in the thickness direction in a hydrothermal environment,which increased their warpage.TBLCs showed increased warpage in the width and diagonal directions upon increasing the temperature.The warpage of Type E increased by 155.88%and 66.67%in the width and diagonal directions,respectively,when the temperature increased from 25C to 100C.The symmetrical TBLC with cross-lay-up and odd layers displayed better hydrothermal stability.We revealed that the deformation of the TBLCs could be regulated under the synergistic effect of water and temperature.These results provide a scientific basis for improving the uniformity of bamboo bundle composite materials and for developing thin bamboo bundle fiber composite materials with designable structures and controllable performance.展开更多
为量化评估饰面人造板材生产过程中所产生的环境影响,探索产品的低碳优化方向,本文运用生命周期评价法,聚焦产品碳足迹这一环境属性,对饰面人造板材产品生命周期过程的碳足迹进行了量化分析。以某公司产品的碳足迹评价过程为例,以0.5 m...为量化评估饰面人造板材生产过程中所产生的环境影响,探索产品的低碳优化方向,本文运用生命周期评价法,聚焦产品碳足迹这一环境属性,对饰面人造板材产品生命周期过程的碳足迹进行了量化分析。以某公司产品的碳足迹评价过程为例,以0.5 mm重组装饰单板为评价对象,进行实地数据收集与计算。结果表明:该重组装饰单板1 m^(2)的产品碳足迹总和值为2.79 kg CO_(2)eq,其高碳排放单元过程为生产制造阶段,碳足迹为1.13 kg CO_(2)eq。热蒸汽能源的使用对碳排放贡献的影响最大,主要发生于染色漂白和单板干燥工序。因此,针对染色漂白和单板干燥工序进行低碳优化,对于降低产品碳足迹具有重要的意义。展开更多
基金supported by the Youth Top-notch Talent Program of Science and Technology Innovation for Forestry and Grassland(2019132606).
文摘To overcome warping in thin bamboo bundle veneer laminated composites(TBLC),their hydrothermal deformation characteristics were systematically investigated in this study.It was found that TBLCs accelerated the release of internal stress in the thickness direction in a hydrothermal environment,which increased their warpage.TBLCs showed increased warpage in the width and diagonal directions upon increasing the temperature.The warpage of Type E increased by 155.88%and 66.67%in the width and diagonal directions,respectively,when the temperature increased from 25C to 100C.The symmetrical TBLC with cross-lay-up and odd layers displayed better hydrothermal stability.We revealed that the deformation of the TBLCs could be regulated under the synergistic effect of water and temperature.These results provide a scientific basis for improving the uniformity of bamboo bundle composite materials and for developing thin bamboo bundle fiber composite materials with designable structures and controllable performance.
文摘为量化评估饰面人造板材生产过程中所产生的环境影响,探索产品的低碳优化方向,本文运用生命周期评价法,聚焦产品碳足迹这一环境属性,对饰面人造板材产品生命周期过程的碳足迹进行了量化分析。以某公司产品的碳足迹评价过程为例,以0.5 mm重组装饰单板为评价对象,进行实地数据收集与计算。结果表明:该重组装饰单板1 m^(2)的产品碳足迹总和值为2.79 kg CO_(2)eq,其高碳排放单元过程为生产制造阶段,碳足迹为1.13 kg CO_(2)eq。热蒸汽能源的使用对碳排放贡献的影响最大,主要发生于染色漂白和单板干燥工序。因此,针对染色漂白和单板干燥工序进行低碳优化,对于降低产品碳足迹具有重要的意义。
