Manufacturing method of cyclic utilization type pressure-sensitive adhesive tape
A type of pressure-sensitive adhesive tape and manufacturing method technology, applied in the direction of pressure-sensitive film/sheet, adhesive, film/sheet-shaped adhesive, etc., can solve problems such as difficult handling, residual glue, and non-recyclable protective film, etc. Achieve superior moisture and water resistance, reduce pollution, and facilitate reuse and recycling
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[0030] Embodiment 1~4: A kind of manufacturing method of recycling type pressure-sensitive adhesive tape, comprises polypropylene film, pressure-sensitive modified EVA adhesive layer and release material layer, and described pressure-sensitive modified EVA adhesive layer is positioned at Between the polypropylene film and the release material layer;
[0031] The pressure-sensitive modified EVA adhesive layer 2 is composed of the following components:
[0032] Table 1
[0033]
[0034] The modified EVA aqueous solution is further obtained through the following steps:
[0035] Step 1, dissolving 20-40 parts of polyvinyl alcohol, 6-8 parts of sodium isooctanoate, 2-4 parts of potassium sulfite and 0.05-0.1 part of ferrous sulfate in ionized water to form an aqueous mixture;
[0036] Step 2, put the aqueous mixture of step 1 into the autoclave, and then feed ethylene to replace the air in the autoclave;
[0037] Step 3: Warm up the reaction kettle jacket water to the reactio...
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