Water-soluble double-sided adhesive tape and double-sided adhesive tape cutting apparatus
A technology of double-sided tape and cutting device, applied in the direction of adhesive, adhesive type, film/sheet adhesive, etc., can solve the problem of low initial adhesion of double-sided tape, achieve high initial adhesion, and reduce physical exertion , the effect of high shear strength and peel strength
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Embodiment 1
[0056] Embodiment one: the preparation of water-soluble double-sided adhesive tape
[0057] 1. Preparation of acrylate polymer: Add 60 parts of viscous monomer isooctyl acrylate, 25 parts of internal polymeric monomer methyl acrylate, 8 parts of crosslinking monomer acrylamide, 60 parts of methanol and 90 parts of ethyl acetate into four Stir and heat the flask to 70°C, add 0.3% of the initiator azobisisobutyronitrile to react at reflux temperature for 6 h, cool down to 35°C, add polyoxyethylene ether surfactant and appropriate amount of methanol and stir evenly, Finally add 0.1% of curing agent aluminum acetylacetonate.
[0058] This tape greatly improves the water solubility speed by adding a large amount of hydrophilic cross-linking monomers and polyoxyethylene ether surfactants. The multi-cross-linking also greatly improves the glue overflow under the premise of ensuring high initial viscosity. Condition.
[0059] 2) Coat the prepared acrylate polymer on one side of the ...
Embodiment 2
[0070] Embodiment two, the preparation of water-soluble double-sided adhesive tape
[0071] 1. Preparation of acrylate polymer: Add 30 parts of butyl acrylate, 35 parts of vinyl acetate, 25 parts of methyl methacrylate, 7 parts of acrylamide, 3 parts of acrylic acid, 60 parts of methanol and 90 parts of ethyl acetate into four Stir and heat the flask to 70°C, add 0.4% initiator azobisisobutyronitrile to react at reflux temperature and keep it warm for 6 h, cool down to 35°C, add polyoxyethylene ether surfactant and appropriate amount of methanol and stir evenly, Finally add 0.2% of curing agent aluminum acetylacetonate.
[0072] 2) Coat the prepared acrylate polymer on one side of the water-soluble paper, then cover the outside of the acrylate polymer with release paper, and then coat the other side of the water-soluble paper with acrylate polymer to complete the water-soluble For the preparation of double-sided tape, the water-soluble double-sided tape is made into a roll fo...
Embodiment 3
[0074] In order to improve the cutting efficiency of roll-shaped double-sided tape during use and save manpower and sticking time, this embodiment discloses a double-sided tape cutting device, which mainly includes three parts: a cutting mechanism 1, a conveying mechanism 2 and a clamping mechanism 3. major institutions such as figure 2 As shown, the conveying mechanism 2 is arranged on the front side of the cutting mechanism 1, and the clamping mechanism 3 is arranged on the left end of the cutting mechanism 1;
[0075] The cutting mechanism 1 includes a top plate 12 and a bottom plate 13 connected by a telescopic column 11, two groups of electromagnetic devices 14 are correspondingly arranged between the top plate 12 and the bottom plate 13, and the two groups of electromagnetic devices 14 are respectively arranged at both ends of the rear side of the cutting mechanism 1 , the electromagnetic device 14 includes a magnetic block 141, an iron core 142 and a conductive coil 14...
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