Super-resilient PU foam double-sided adhesive tape and manufacturing method thereof
A technology of double-sided tape and resilience, which is applied in the direction of adhesives, film/sheet adhesives, pressure-sensitive films/sheets, etc., and can solve the problem of foam double-sided tape's general stickiness and comprehensive performance, and poor surface adhesion , easy to residual glue and other problems, to achieve the effect of excellent holding force, good adhesion, and not easy to residual glue
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Embodiment 1
[0022] The foam base material is 1mm thick polyester PU foam base material 3
[0023] The first step is to corona treat one side of the PU foam with a voltage of 3000 volts, and the treatment gap is 1.5mm;
[0024] The second step is to corona treat the second side of the PU foam with the same voltage and treatment gap;
[0025] In the third step, primer 2 is applied to one side of the substrate with a coating amount of 50 g / square meter;
[0026] The fourth step is to evenly brush the treated pressure-sensitive adhesive on the first surface with a coating amount of 80 g / m2;
[0027] The 5th step, with the coating amount of 50 grams / square meter, primer is applied on the second surface of the substrate;
[0028] The sixth step is to evenly brush the treated pressure-sensitive adhesive on the second surface with a coating amount of 80 g / m2, and dry the pressure-sensitive adhesive layer at a temperature of 80°C-110°C for 2-3 minutes ;
[0029] The seventh step is to attach t...
Embodiment 2
[0032] The foam base material is 3mm thick polyester PU foam base material
[0033] The first step is to corona treat one side of the PU foam with a voltage of 5000 volts, and the treatment gap is 1.5mm;
[0034] The second step is to corona treat the second side of the PU foam with the same voltage and treatment gap;
[0035] In the third step, primer is applied to one side of the substrate with a coating amount of 40 grams per square meter;
[0036] The fourth step is to evenly brush the treated pressure-sensitive adhesive on the first surface with a coating amount of 80 g / m2;
[0037] The 5th step, with the coating amount of 40 grams / square meter, primer is applied on the second surface of the substrate;
[0038] The sixth step is to evenly brush the treated pressure-sensitive adhesive on the second surface with a coating amount of 80 g / m2, and dry the pressure-sensitive adhesive layer at a temperature of 80°C-110°C for 3-5 minutes ;
[0039] The seventh step is to atta...
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