Test method for adhesiveness of double-sided foam tape:
The test of the adhesiveness of double-sided foam tape includes: shear strength test, tensile strength test, peel strength test, impact strength test and split strength test. In fact, the test method of double-sided tape and the test principle of ordinary single-sided pressure-sensitive adhesive Same.
When bonding foam double-sided pressure-sensitive adhesive tape with stainless steel plate or other materials, first tear off the 3^-5 layer outside of the double-sided adhesive tape, and then take the 200mm or more adhesive tape and stick it on the polyester film. Then peel off the release paper on the other side and test according to the regulations of single-sided adhesive. In layman’s terms, it means to make a single-sided glue first and then experiment. When measuring the peel strength of the double-sided pressure-sensitive adhesive tape and the sheet, film and other materials, first stick the sheet, film, etc. on the steel plate, and then conduct the test according to the regulations.
Foam adhesive is made of pe or eva as the base material, using acrylic oil-based pressure-sensitive adhesive, and coated with release paper or release film as the isolation surface. The development prospect of foam double-sided adhesive is very good. Its performance is: it can fully absorb the gaps of the adherend and the defects of the adherend, it has good cushioning properties, excellent creep resistance, and can bear the load for a long time. It is widely used in construction industry and automobile industry.
The product use of double-sided foam tape is mainly used to bond objects, and its bonding effect is very critical. In the application of double-sided foam tape, we need to take some methods to improve its bonding effect. What are the specifics? What’s a good way?
To improve the bonding effect of the foam glue, the adhesive surface must be thoroughly cleaned and dried. It is recommended to wipe the surface with a cloth dipped in a mixture of 1:1 IPA and water, and then wait until the surface is dry. After the cleaning solvent dries, stick the double-sided tape on the adhesive surface, apply pressure within about 15 PSI with a roller or other means to make it effectively bonded, then tear off the release paper and stick it together The material is pasted, and 15PSI pressure is also applied to make it fit effectively. The ideal temperature for sticking foam double-sided tape products is 15-38 degrees Celsius. During tape sticking, if bubbles need to be removed, the pressure should be increased, and the upper limit of the article’s bearing capacity should be used, and one end should be attached first, and then slowed down. Press to the other end to reduce the chance of bubbles.