Low-temperature foaming adhesive tape and adhesive tape forming device
A molding device and tape technology, applied in the directions of adhesives, sending objects, adhesive types, etc., can solve the problems of inability to effectively guarantee the yield of finished products, complicated tape manufacturing process, insufficient process connection, etc., and achieve convenience. And the effect of improving the degree of automation, process quality assurance, and expanding the scope of application
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Embodiment 1
[0047] Embodiment 1, the preparation of low temperature foaming tape
[0048] 1. Preparation of acrylate polymer: add 60 parts of viscous monomer isooctyl acrylate, 15 parts of cohesive monomer methyl acrylate, 1.5 parts of functional monomer acrylamide, 90 parts of toluene and 60 parts of acetone into a four-necked flask, Stir and heat to 70 °C, add initiator azobisisobutyronitrile to react to reflux temperature for 8 h, then cool to 45 °C to release the glue;
[0049] 2. Stir the prepared acrylate polymer with an appropriate amount of foamed microspheres, and use the tape forming device to complete the forming of the roll tape after stirring evenly.
[0050] Within a certain temperature range, the thermoplastic shell softens, the gas inside the shell expands, and the volume of the microspheres increases dozens of times, reducing the density of the product. Moreover, the microspheres are easily compressed after expansion, and after the pressure is released, the microspheres ...
Embodiment 2
[0056] 1. Preparation of acrylate polymer: add 70 parts of viscous monomer butyl acrylate, 12 parts of cohesive monomer methyl acrylate, 0.6 part of functional monomer acrylic acid, 90 parts of toluene and 80 parts of acetone into a four-necked flask, stir and heat To 70 ℃, add the initiator azobisisobutyronitrile reaction to the reflux temperature for 8 h, cool down to 45 ℃ to release the glue;
[0057] 2. Stir the prepared acrylate polymer with an appropriate amount of foamed microspheres, and use the tape forming device to complete the forming of the roll tape after stirring evenly.
Embodiment 3
[0059] The specific structure of the tape forming device used in this embodiment is:
[0060] The left end of the worktable 1 is provided with a substrate cleaning box 2, and the right end is provided with a finished product winding device 3. Above the worktable 1 along the moving direction of the PET substrate are sequentially provided a glue coating box 4, a drying box 5, and a release box. Film discharge roller 6 and a set of pressing rollers 7;
[0061] The PET substrate is led out from the substrate discharge roller 8 and then enters the box from the inlet of the bottom left side of the substrate cleaning box 2 through the guide roller one 9, and then enters the glue coating box 4 after being led out by the guide roller two 10, A connecting plate 21 is arranged in the substrate cleaning box 2, and several cleaning devices 22 are distributed on the connecting plate 21 and located at equal distances between the connecting plate 21 and the PET substrate. The cleaning devices...
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