| Reasons and Solutions for Degumming of Car Door Rubber Sealing Strips |
| Received:April 16, 2020 Revised:April 16, 2020 |
| DOI：10.12136/j.issn.1000-890X.2021.06.0450 |
| Key Words: rubber sealing strip；car door；double-sided adhesive tape；degumming；adhesive force；elongation |
| Author Name | Affiliation | E-mail | | ZHAO Jiancai* | Jianxin Zhao’s Group Corp. | 1551592389@qq.com | | JIANG Lili | Jianxin Zhao’s Group Corp. | | | WANG Xianlin | Jianxin Zhao’s Group Corp. | |
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| Abstract: |
| In view of the degumming phenomenon of car door rubber sealing strips，the main factors affecting the adhesion of double-sided adhesive tapes of the rubber sealing strip were analyzed based on the adhesion mechanism of double-sided adhesive tapes and field installation experience，and the comparative test of heated elongation of the rubber sealing strip was carried out.The results showed that the elongation of the rubber sealing strip with severe degumming was greater than that with light degumming.The local shear force of the adhesive part of the rubber sealing strip was too large due to the thermal elongation or cold shrinkage，and the surface energy of the car door sheet metal paint did not meet the technical requirements，which led to the degumming phenomenon of the rubber sealing strip.Adding glass fiber rope at the bonding part of the rubber sealing strip and adhesive tape or improving the adhesive force between the adhesive tape and sheet metal paint surface could effectively reduce the degumming phenomenon of the rubber sealing strip. |
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