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A kind of PVC acrylic pressure-sensitive adhesive protective film and preparation method thereof
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An acrylic pressure-sensitive adhesive protective film, epoxy acrylate technology, applied in the direction of pressure-sensitive film/sheet, adhesive, film/sheet-like adhesive, etc. The environment is unfriendly and the time required is long, so as to reduce the curing time, increase the bonding force and improve the adhesion.
Active Publication Date: 2022-03-25
东莞市超智新材料有限公司
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It can be seen that the process is complicated. If the primer process is not carried out, it will be difficult to combine the acrylic glue with the PVC base layer, and the primer layer generally uses a highly volatile organic solvent, which is not friendly to the human body and the environment, and is baked at a high temperature. It takes a long time to bake and shape, resulting in slow production efficiency
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Embodiment 1
[0023] A preparation method for a PVC acrylic pressure-sensitive adhesive protective film, comprising the steps of:
[0024] (1) Provide PVC substrate layer;
[0025] (2) coating the UV photocurable mixture on the surface of the PVC substrate layer;
[0026] (3) UV light is used to irradiate the coating to make it UV-cured to form an acrylic pressure-sensitive adhesive layer to obtain a PVC acrylic pressure-sensitive adhesive protective film,
[0027] Wherein, the UV photocuring mixture, by weight, includes 30 parts of polyol-modified epoxyacrylate, 60 parts of monofunctional aliphatic polyurethane acrylate, 10 parts of 3-chloro-2-hydroxy Propyl methacrylate, 12 parts of carboxypolyethylene glycol acrylate, 3 parts of 2-hydroxy-methylphenylpropan-1-one, 5 parts of lauric acid acrylate, monofunctional epoxy acrylate Tg is 8°C.
Embodiment 2
[0029] A preparation method for a PVC acrylic pressure-sensitive adhesive protective film, comprising the steps of:
[0030] (1) Provide PVC substrate layer;
[0031] (2) coating the UV photocurable mixture on the surface of the PVC substrate layer;
[0032] (3) UV light is used to irradiate the coating to make it UV-cured to form an acrylic pressure-sensitive adhesive layer to obtain a PVC acrylic pressure-sensitive adhesive protective film,
[0033] Wherein, the UV photocurable mixture, by weight, includes 40 parts of monofunctional aliphatic epoxy acrylate, 50 parts of monofunctional aliphatic polyurethane acrylate, 15 parts of 3-chloro-2-hydroxypropyl methacrylate, 18 parts of carboxypolyethylene glycol acrylate, 3 parts of 2-hydroxy-methylphenylpropan-1-one, 2 parts of 1-hydroxycyclohexyl phenyl ketone, 7 parts of Propoxylated nonylphenol acrylate, 5 parts of isobornyl acrylate, 3 parts of hexafluoropropyleneoxidepolymer, the Tg of monofunctional epoxy acrylate is 5°C...
Embodiment 3
[0035] This embodiment is basically the same as Example 1, the difference is that: Example 3 also contains an auxiliary agent, 5 parts of vinyl ether functionalized polysiloxane, while Example 1 does not contain this auxiliary agent, and the rest are the same as in Example 1. are the same and will not be elaborated here.
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Abstract
The invention provides a kind of preparation method of PVC acrylic pressure-sensitive adhesive protective film, comprising the steps of (1) providing a PVC substrate layer; (2) coating a UV light-curing mixture on the surface of the PVC substrate layer; (3) using UV light Irradiate the coating to make it UV-cured to form an acrylic pressure-sensitive adhesive layer, and obtain a PVC acrylic pressure-sensitive adhesive protective film. Polyurethaneacrylate, 10-20 parts of 3-chloro-2-hydroxypropyl methacrylate, 12-20 parts of carboxypolyethylene glycol acrylate, 1-8 parts of photoinitiator , 5 to 15 parts of reactive diluent and 0 to 10 parts of additives. The preparation method has simple process and the prepared protective film has excellent toughness, tensile force, adhesive force and heat resistance. The invention also provides a PVC acrylic pressure-sensitive adhesive protective film.
Description
technical field [0001] The invention relates to the technical field of PVC protective films, in particular to a PVC acrylic pressure-sensitive adhesive protective film and a preparation method thereof. Background technique [0002] PVC protective film is a kind of protective film obtained by coating soft polyvinyl chloride as the base material and pressure-sensitive adhesive on the surface. Because of its excellent characteristics, it is widely used in surface protection of large outdoor building materials, outdoor decoration materials, and high-end furniture. In recent years, with the rapid development of the electronic semiconductor industry, PVC protective film has been widely used in electronic products. [0003] At present, the preparation of PVC protective film is generally carried out by thermal curing process, that is, first coat a layer of glue on the surface of the PVC base layer as the primer layer, then coat the acrylic glue on the primer layer, and then perform...
Claims
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