谭国静,杨凯,褚学军.探究温度对复合膜阻隔性和力学性能的影响[J].包装工程,2023,44(13):49-54.
TAN Guo-jing,YANG Kai,CHU Xue-jun.Effect of Temperature on the Barrier and Mechanical Properties of Composite Films[J].Packaging Engineering,2023,44(13):49-54. |
| 探究温度对复合膜阻隔性和力学性能的影响 |
| Effect of Temperature on the Barrier and Mechanical Properties of Composite Films |
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| DOI：10.19554/j.cnki.1001-3563.2023.13.007 |
| 中文关键词: 温度 复合膜 阻隔性 力学性能 |
| 英文关键词: temperature composite film barrier property mechanical property |
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| 中文摘要: |
| 目的 探究温度变化对几种包装用复合膜阻隔性和力学性能的影响。方法 采用4种不同材质的复合膜为研究对象，通过调节温度变化，分别对复合膜进行拉伸强度、断裂伸长率、穿刺强度、直角撕裂力、氧气透过量、水蒸气透过量测试。结果 随着温度的升高，复合膜的拉伸强度、穿刺强度、直角撕裂力呈现逐渐变小的趋势，断裂伸长率呈现先增大后减小的趋势，氧气透过量、水蒸气透过量呈现逐渐变大的趋势。温度从15 ℃升至55 ℃，BOPP/EVOH复合膜的力学性能和阻隔性能受温度影响小，其中拉伸强度降低了5.2 MPa，断裂伸长率增加了10%，穿刺强度降低了4.4 N，直角撕裂力降低了5.0 N，水蒸气透过量提高了2.34 g/(m2.d)，氧气透过量增加了12.5 cm³/(m2.d.0.1 MPa)。结论 根据实验探究，温度是影响包装复合材料性能的重要因素，为不同温度条件下不同材质复合膜的性能变化提供了数据指导，BOPP/EVOH复合膜的综合性能受温度变化影响最小。 |
| 英文摘要: |
| The work aims to explore the effect of temperature change on the barrier and mechanical properties of several packaging composite films. Four kinds of different composite films were used as the research object. By adjusting the temperature, the tensile strength, elongation at break, puncture strength, right-angle tearing force, oxygen permeability and water vapor permeability of composite films were tested respectively. With the increase of temperature, the tensile strength, puncture strength and right-angle tearing force of composite films decreased gradually, the elongation at break increased firstly and then decreased, and the oxygen permeability and water vapor permeability increased gradually. When the temperature increased from 15 ℃ to 55 ℃, the mechanical properties and barrier properties of BOPP/EVOH composite film were less affected by temperature, with tensile strength decreasing by 5.2 MPa, elongation at break increasing by 10 %, puncture strength decreasing by 4.4 N, right-angle tearing force decreasing by 5.0 N, water vapor permeability increasing by 2.34 g/(m2.d), and oxygen permeability increasing by 12.5 cm³/(m2.d.0.1 MPa). According to the experimental research, the temperature is an important factor affecting the properties of packaging composite film and the research results provide guidance for the application of composite films in packaging field. The comprehensive properties of BOPP/EVOH composite film is least affected by temperature change. |
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