Su Hongxia, Huang Chongxing, Li Cuicui, Zhao Yuan, Zheng Dantong, Duan Qingshan
School of Light Industry & Food Engineering, Guangxi University, Nanning 530004, China.
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
ACS Omega. 2023 Jun 26;8(26):23673-23682. doi: 10.1021/acsomega.3c01668. eCollection 2023 Jul 4.
It is necessary to develop corrugated medium food packaging, which is suitable for highly humid environments, to meet the demands of cold chain logistics. In this paper, we investigated the influence of the transverse ring crush index of different environmental factors of corrugated medium and the failure mechanisms during cold chain transportation. After freeze-thaw treatment of corrugated medium, XRD and DP showed a decrease in crystallinity and polymerization of 3.47 and 7.83%, respectively. Also, the FT-IR spectra of the paper showed that the number of intermolecular hydrogen bonds decreased by about 3.00% after freezing. SEM and XRD showed CaCO precipitation on the paper surface and a 26.01% increase in pore size. This study would be beneficial in further expanding the applications of cellulose-based paperboard cold chain transportation.
开发适用于高湿度环境的瓦楞纸食品包装以满足冷链物流的需求是很有必要的。在本文中，我们研究了不同环境因素对瓦楞纸横向环压指数的影响以及冷链运输过程中的失效机制。对瓦楞纸进行冻融处理后，X射线衍射（XRD）和差示扫描量热法（DP）显示结晶度和聚合度分别下降了3.47%和7.83%。此外，纸张的傅里叶变换红外光谱（FT-IR）表明冷冻后分子间氢键数量减少了约3.00%。扫描电子显微镜（SEM）和XRD显示纸张表面有碳酸钙沉淀，孔径增加了26.01%。这项研究将有助于进一步扩大纤维素基纸板在冷链运输中的应用。
