|
| Effect of Marine Atmospheric Environment on the Properties of Envelope Protective Materials |
| Received:February 16, 2023 Revised:April 18, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.10.016 |
| KeyWord:marine atmospheric environment envelope protective materials storage test water vapor transmission shelter storage warehouse storage multi-level moisture transmission long-term storage performance |
| Author | Institution |
| XU Hao |
Southwest Institute of Technique and Engineering, Chongqing , China |
| YANG Sen |
Southwest Institute of Technique and Engineering, Chongqing , China |
| YANG Huan |
Southwest Institute of Technique and Engineering, Chongqing , China |
| XING Dong-hui |
Southwest Institute of Technique and Engineering, Chongqing , China |
| ZHOU Song-shan |
Southwest Institute of Technique and Engineering, Chongqing , China |
| DAI Wen-jun |
Southwest Institute of Technique and Engineering, Chongqing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to explore the performance degradation law of aluminum-plastic envelope protective materials under long-term storage in hygrothermal marine atmospheric environment. By optimizing the layer structure, new envelope protective materials were prepared with SiOx evaporated biaxially stretched polyester film as the outer reinforcement layer and PA6 coextruded EVOH biaxially stretched film as the inner reinforcement layer. Then, storage tests were carried out in the warehouse and shelter of Marine Atmosphere Environmental Test Station. By testing critical properties such as water vapor transmission, oxygen transmission, peeling force, breaking force and surface resistivity, the time-performance effect curve was established. Meanwhile, the internal humidity curve of materials and corrosion state of carbon steel disc were recorded, so as to evaluate the effect trend of marine atmospheric environment on the performance of envelope protective materials. After 180 days of storage, the water vapor transmission was still less than 0.3 g/(cm2.24 h), the moisture resistance of the self-developed new envelope protective materials in the shelter storage and warehouse storage environment were improved by 29.8% and 31.5% respectively, and peeling force and breaking force did not decrease significantly and surface resistivity was at a range of 109～1011 Ω. By reducing the interaction between moisture molecules and outer enhancement layer molecules, the barrier ability of the envelope protective material can be effectively improved, which verifies the scientific nature of the multi-level moisture transmission concept. |
| Close |
|
|
|