Contact: Cheng Huiqiang
Address：No. 333, Jinxian Road, Jinjiaba, FENHU Town, Wujiang District, Suzhou City, Jiangsu Province
After the anticorrosive layer of the buried oil and gas pipeline is aged and loses its performance, it must be removed clean and the anticorrosive layer must be made again. In this field, 3G anticorrosive adhesive tape is a product in recent years. why? Because 3G anticorrosive adhesive tape is different from all other adhesive tapes, it is (at least in China) one of the few pure elastomer adhesive tapes that can react with the primer material to achieve bond bonding. As the use time increases, the reaction between the adhesive tape and the primer material gradually deepens, and the number of bonds increases. As an important evaluation index for measuring the anticorrosive performance, the peel strength also increases, and the anticorrosive performance improves year by year. In order to confirm the bonding reaction between the 3G anticorrosive adhesive tape and the primer material, please see the following experimental report. (Anticorrosive tape)
2. The bonding mechanism of 3G anticorrosive tape is confirmed
2.1 Test method
一分彩Take three steel test panels for peel strength test and apply the same 3G anticorrosive tape. Apply three different primers separately. The other components of the three primers are the same, except that the content of the curing agent at room temperature is different. Among them, 3G-2012 primer at room temperature vulcanizing agent content of 1%, 3G-2011 is 0.75%, ordinary primer does not contain room temperature vulcanizing agent.
一分彩After the primer is dry, apply the same 3G anticorrosive tape. After standing for 7 days, the peel strength test was performed on a 90 ° peel strength tester. Test plate size: 50mm × 200mm, Φ720 curvature, test temperature: 25.4 ℃, relative humidity: 66%, tensile speed: 300mm / min, cut size: 20mm × 200mm. Considering the effect of tensile speed on the peel strength test, all three panels used the same tensile speed.
一分彩2.2 Confirmation results
After the room temperature vulcanizing agent is added to the primer, the peel strength is increased by more than double, and the damage mode is changed from the interface failure of the ordinary primer to the cohesive failure, resulting in a qualitative change.
Contact: Cheng Huiqiang
|Contact : Li Cong|
|Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu|