Water-based non-silicon release agent, its preparation method and water-based non-silicon release paper
A release agent and release paper technology, applied in papermaking, paper, paper coatings, etc., can solve the problem that the release agent cannot meet the requirements of the times, and achieve the effect of high utilization rate of raw materials and high purity
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Embodiment 1
[0060] A water-based non-silicon release paper includes a substrate layer and a release layer, and the release layer is composed of a water-based non-silicon release agent and water. The water-based non-silicon release agent is octadecyl urethane 3-hydroxy polyacrylate, and the release layer is obtained by coating a 3-15% aqueous solution of the water-based non-silicon release agent on the substrate layer. The substrate layer includes a base paper layer and a PET plastic film layer, and the water-based non-silicon release paper is a release layer, a PET plastic film layer, and a base paper layer from top to bottom.
[0061] The main raw materials for the preparation of water-based non-silicon release agent include: 3-formyl propionic acid, carbamic acid, n-stearyl alcohol; the chemical name of water-based non-silicon release agent is: octadecyl carbamic acid 3-hydroxy polyacrylate ;
[0062] The preparation of octadecyl urethane 3-hydroxy polyacrylate mainly includes the foll...
Embodiment 2
[0088] The shape and structure of this embodiment is similar to that of embodiment 1, the only difference is that the substrate layer is slightly different, and two release layers are provided. A kind of water-based non-silicon release paper of this embodiment, the substrate layer includes a base paper layer and two PET plastic coating layers, and the water-based non-silicon release paper is a release layer and a PET plastic coating layer from top to bottom. , Base paper layer, PET plastic coating layer, release layer.
Embodiment 3
[0090] The shape and structure of this embodiment and embodiment 1 are basically the same, the difference is only that in the preparation method of the water-based non-silicon release paper, the process parameters in step 2, step 3 and step 7 are slightly different. In step 2, after mixing 3-formylpropionic acid with water, add an initiator, and change the reaction time at 2atm and 30°C to 15min; The degree of vacuum is changed to -0.06Mpa; in step 7, the temperature of dehydration is changed to 120°C, and the degree of vacuum of dehydration is changed to -0.06Mpa.
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