中国农机化学报2026，Vol.47Issue(5)：26-32,44,8.DOI:10.13733/j.jcam.issn.2095-5553.2026.05.004
基于烟草种植回收的农业地膜力学性能研究
Study on the mechanical properties of agricultural plastic film based on tobacco planting recycling
摘要
Abstract
Plastic film covers can retain heat and moisture,promoting the growth of tobacco seedlings,but failure to remove them in a timely manner will affect the subsequent growth of tobacco plants.Plastic film with good mechanical properties can reduce the damage rate during the recycling process and reduce the difficulty of recycling and reuse.This study designed experiments to investigate the mechanical properties of plastic film used in tobacco cultivation,including tensile properties,tear properties,and puncture-resistant properties,during the plastic film recovery process,based on the agronomic requirement of removing film 40 days after transplanting tobacco seedlings in Fujian Province.It explored the key factors affecting these mechanical properties and conducted multivariate linear regression and correlation analysis.The results showed that when the plastic film was stretched,it exhibited significant anisotropy.The weight of thickness on tensile force was 57.8%,and the weight of thickness on elongation at break was 49.3%.As thickness increased,tensile properties were significantly enhanced.The effect of stretching speed on tensile force and elongation at break was not significant.The weighting of the effect of changing the stretching direction from longitudinal to transverse on tensile strength was-31.6%,and the weighting of the effect on elongation at break was 27.8%.When the stretching direction was longitudinal,the tensile properties were better.When the plastic film was torn,the Spearman correlation coefficient between thickness and tear strength was 0.985,p<0.05,indicating that thickness and tear strength were strongly correlated.As thickness increased,tear resistance significantly improved.The Spearman correlation coefficient between tear speed and tear force was 0.104,p>0.05,indicating no strong correlation.When puncturing plastic film,thickness had a 91.2% influence on puncture force and a 78.5% influence on puncture strength.As thickness increased,puncture performance increased significantly.The effect of puncture direction on puncture force was not significant with p>0.05,indicating no significant difference.The results of this study could provide some reference for the design and optimization of tobacco plastic film recovery machines.关键词
烟草种植/地膜回收/力学性能/线性回归/相关性分析Key words
tobacco cultivation/plastic film recovery/mechanical properties/linear regression/correlation analysis分类
农业科技引用本文复制引用
郑文鑫,蔡邵平,陈献勇,陈泽航,张德晖,何金成..基于烟草种植回收的农业地膜力学性能研究[J].中国农机化学报,2026,47(5):26-32,44,8.基金项目
福建省自然科学基金项目(2024J01422) （2024J01422）
福建农林大学科技创新专项基金项目(KFB23163A) （KFB23163A）
中国烟草总公司福建省公司科技计划项目(2024350000240036) （2024350000240036）
