Contact: Cheng Huiqiang
Address：No. 333, Jinxian Road, Jinjiaba, FENHU Town, Wujiang District, Suzhou City, Jiangsu Province
一分彩Explanation of anti-corrosion tape adhesive layer knowledge
After installation of the polypropylene adhesive tape, the appearance, leakage points and peel strength should be inspected. The test should be performed 24 hours after the adhesive tape is wrapped. Anticorrosive tape
一分彩(1) Appearance: It should be visually inspected one by one. The surface of the polypropylene adhesive tape should be flat, uniformly overlapped, free of bubbles, wrinkles and damage;
(2) Leakage points: Each fill should be checked for leakage points with an EDM leak detector, with no leakage points being qualified; the leakage detection voltage is 15kV. If there are missing points, make up again and check for leaks until they pass.
(3) Peeling strength: The peeling strength of the adhesive tape should be tested in accordance with the prescribed method. The test temperature should be 20 ℃ ～ 30 ℃, and the peeling strength value should not be lower than 20N / cm.
The strength of the adhesive force can be said to be an important indicator for measuring the polypropylene anticorrosive tape. After investigation, it is found that there are two main forms of the adhesive force, and judging its strength cannot pass the viscosity of the hand. This is an extremely Unscientific judgment methods, let Xunda anti-corrosion technical staff introduce you to this knowledge in detail.
First of all, the adhesive strength of polypropylene fiber anticorrosive tape has only two forms of expression according to the standard. They are: the adhesive force of the tape to the primer steel (peel strength) and the adhesive force of the tape to the backing material (peel strength). The data index of the former is: ≥20N / cm. The latter is divided into two cases: ≥5N / cm for backing material without release paper; ≥20N / cm for backing material with release paper.
一分彩 Secondly, the judgement of the adhesive force cannot be judged by the touch. The scientific method is to perform a peel strength test on the finished anti-corrosion layer with a spring scale. The test method is: use a knife ring to cut a 10 mm wide adhesive tape layer with a length greater than 100 mm. Then use a spring scale to pull away from the tube wall at an angle of 90o, and the opening speed should not be greater than 300mm / min. Then judge by reading the spring scale. Products that meet the requirements of the index are all qualified products. Otherwise it fails.
Suzhou Qianggu Pipeline Anticorrosive Material Co., Ltd. is located in Fenhu Economic Development Zone, Wujiang District, Suzhou City, Jiangsu Province. It is a comprehensive anticorrosive and waterproof material manufacturing industry with complete anticorrosion products, advanced equipment and stable quality. Anticorrosive products mainly include: polyethylene pipe anticorrosive tape, polyethylene modified tape CTB-Y, polypropylene anticorrosive tape CTB-B, aluminum foil anticorrosive adhesive tape, radiation-crosslinked polyethylene anticorrosive heat shrinkable sleeve, heat shrinkable tape, heat shrink Winding tape, heat shrinkable waterproof cap, viscoelastic anticorrosive tape, viscoelastic anticorrosive paste and many other anticorrosive materials. Anticorrosive tape price
Contact: Cheng Huiqiang
|Contact : Li Cong|
|Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu|