| 塑料包装袋热合强度的失效模式分析 |
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| 引用本文： | 张红静,张国庆,王翠青.塑料包装袋热合强度的失效模式分析[J].包装学报,2015,7(3):27-31. |
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| 作者姓名： | 张红静 张国庆 王翠青 |
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| 作者单位： | 鲁南煤化工研究院,山东 济宁,272000 |
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| 摘 要： | 热合强度是考核复合塑料包装袋热合面封口牢固度的一个重要指标,检测标准中并没有说明测量热合强度时的失效模式。根据QB/T 2358—1998《塑料薄膜包装袋热合强度试验方法》,对PET/Al/PA/RCPP结构、OPP/VMPET/PE结构、PET/RCPP结构、PET/Al/PA/RCPP结构薄膜和阴阳镀铝复合薄膜几种不同材质塑料包装袋进行了热合强度试验,总结得出了5种失效模式,即热封层剥离、热封边缘断裂、薄膜断裂、薄膜分层、先分离后撕裂,结合测量曲线图与失效模式图,分析了各失效模式的形成原因,以便有效指导与改进塑料包装袋的生产工艺。
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| 关 键 词： | 热合强度 失效模式 塑料包装袋 剥离 |
| 收稿时间： | 2015/4/30 0:00:00 |
Failure Mode Analysis of Heat Sealing Strength of Plastic Packaging Bag |
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| Zhang Hongjing,Zhang Guoqing and Wang Cuiqing.Failure Mode Analysis of Heat Sealing Strength of Plastic Packaging Bag[J].Packaging Journal,2015,7(3):27-31. |
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| Authors: | Zhang Hongjing Zhang Guoqing and Wang Cuiqing |
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| Affiliation: | Lunan Research Institute of Coal Chemistry,Lunan Research Institute of Coal Chemistry and Lunan Research Institute of Coal Chemistry |
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| Abstract: | An important indicator of sealing fastness for composite plastic bags is heat sealing strength. Its failure mode has not been explained in testing standards. According to QB/T 2358—1998 ofTest Method for Heat Sealing Strength of Plastic Film Packaging Bag, experiments for heat sealing strength were conducted with plastic packaging bags of different materials,such as PET/Al/PA/RCPP film, OPP/VMPET/PE film, PET/RCPP film, PET/Al/PA/RCPP film and aluminum laminated film. Five failure modes were concluded as: heat seal peeling, heat seal edge fracture, film fracture, film layered, separation and tearing. Analysis on the causes of failure combined with the measurement graphs and failure mode patterns could effectively guide and improve the production process of plastic bags. |
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| Keywords: | heat sealing strength failure mode plastic film packaging bag peeling |
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