Adhesive for PET-PVC composite film

A PET-PVC, adhesive technology, applied in the direction of adhesives, adhesive types, starch-derived adhesives, etc. Strong aesthetics, high transparency, avoid the effect of edge burst

Inactive Publication Date: 2016-12-14
深圳市上悦标签有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most organic solvents are toxic, they will cause serious pollution to the environment and harm to the human body during production and use.
With the increasingly serious environmental pollution in recent years, people's awareness of protecting their own health has also increased, and the production and use of solvent-based adhesives have been restricted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of adhesive for PET-PVC composite film is prepared by the following steps:

[0021] (1) Put 10 parts of epoxy resin, 1 part of emulsifier and 50 parts of water in a reaction kettle with a reflux condenser, heat to 60 ° C, feed nitrogen, and stir for 60 minutes to prepare an epoxy resin emulsion;

[0022] (2) Add 0.6 parts of potassium persulfate aqueous solution to the epoxy resin emulsion, continue to pass nitrogen gas, stir and keep the temperature at 60 ° C, add 85 parts of polyacrylic acid monomer mixed emulsion at a speed of 40 drops / min, and the dropwise addition is completed After that, continue the reflux reaction for 4 hours, heat up to 10°C, add 12 parts of curing agent, 8 parts of dispersing agent, and 2 parts of hydroxyethyl starch, mix evenly, keep warm for 30 minutes, quickly cool to room temperature, and filter to obtain the desired glue. adhesive.

[0023] The epoxy resin is an epoxy resin polymerized from a single bisphenol A diglycidyl ester. ...

Embodiment 2

[0025] A kind of adhesive for PET-PVC composite film is prepared by the following steps:

[0026] (1) Put 10 parts of epoxy resin, 2 parts of emulsifier and 50 parts of water in a reaction kettle with a reflux condenser, heat to 80 ° C, feed nitrogen, and stir for 90 minutes to prepare an epoxy resin emulsion;

[0027] (2) Add 1.2 parts of potassium persulfate aqueous solution to the epoxy resin emulsion, continue to feed nitrogen gas, stir and keep the temperature at 80°C, add 158 parts of polyacrylic acid monomer mixed emulsion at a speed of 40 drops / min, and the dropwise addition is completed After that, continue the reflux reaction for 6 hours, heat up to 10°C, add 18 parts of curing agent, 14 parts of dispersing agent, and 7 parts of hydroxyethyl starch, mix evenly, keep warm for 30 minutes, quickly cool to room temperature, and filter to obtain the desired glue. adhesive.

[0028] The epoxy resin is an epoxy resin polymerized from a single bisphenol A diglycidyl ester. ...

Embodiment 3

[0030] A kind of adhesive for PET-PVC composite film is prepared by the following steps:

[0031] (1) Put 10 parts of epoxy resin, 1 part of emulsifier and 50 parts of water in a reaction kettle with a reflux condenser, heat to 80 ° C, feed nitrogen, and stir for 60 minutes to prepare an epoxy resin emulsion;

[0032] (2) Add 1.2 parts of potassium persulfate aqueous solution to the epoxy resin emulsion, continue to feed nitrogen, stir and keep the temperature at 60°C, add 158 parts of polyacrylic acid monomer mixed emulsion at a speed of 40 drops / min, and the dropwise addition is completed After that, continue the reflux reaction for 4 hours, heat up to 10°C, add 18 parts of curing agent, 8 parts of dispersing agent, and 7 parts of hydroxyethyl starch and mix evenly. adhesive.

[0033] The epoxy resin is an epoxy resin polymerized from a single bisphenol A diglycidyl ester. The emulsifier in the step 1 is a mixture of sodium dodecylsulfonate and MS-1, wherein the mass ratio...

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PUM

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Abstract

The invention discloses an adhesive for a PET-PVC composite film. The adhesive is prepared by matching epoxy resin-acrylate polymer emulsion prepared according to a core-shell polymerization method with a curing agent and other ingredients. The adhesive is good in adhesive effect, and the PVC and PET films can be firmly adhered under the condition that the adhesive layer is thin, so that the phenomena that the composite film cracks during cutting and the like are avoided. Moreover, the adhesive is high in transparency and does not influence the permeability and glossiness of the composite film, and the composite film prepared by using the adhesive is high in aesthetic property.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an adhesive for PET-PVC composite films. Background technique [0002] Polyester film (PET film) has excellent physical properties, chemical properties and dimensional stability, transparency and recyclability, so PET film is widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, screen protection, industrial film, packaging decoration or optical grade mirror protection and other fields. Due to the high brightness of the PET film and the direct printing on the surface of the film, the application of the PET film to the decorative board can effectively improve the aesthetics of the decorative board and increase the commodity value of the decorative board. [0003] However, the wear resistance of the PET film is not good. If the PET film is simply used as the decorative film to prepare the decorative board, the decorative board is relatively easy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/08C09J103/08C08F283/10C08F220/56C08F236/06C08F220/22C08F220/58C08F220/28
CPCC08F283/10C09J151/08C08L3/08C08F220/56
Inventor 付竹兰
Owner 深圳市上悦标签有限公司
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