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A kind of acrylate pressure-sensitive adhesive emulsion of PET substrate for battery packaging, its preparation method and application

A technology of pressure-sensitive adhesive emulsion and acrylate, which is applied in the direction of pressure-sensitive film/sheet, adhesive, ester copolymer adhesive, etc., and can solve problems affecting the health of operators, warping and cracking of PET substrates, and environmental pollution. , to reduce the probability of warping and cracking, ensure durability and good mechanical properties

Active Publication Date: 2019-10-18
WUXI HAITE NEW MATERIAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based acrylic pressure-sensitive adhesives have excellent comprehensive performance, but they contain a large amount of organic solvents such as toluene and ethyl acetate, and have high VOC emissions during coating, which affects the health of operators, pollutes the environment, and often There will be warping and cracking of the PET base material, which will affect the production efficiency and product quality

Method used

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  • A kind of acrylate pressure-sensitive adhesive emulsion of PET substrate for battery packaging, its preparation method and application
  • A kind of acrylate pressure-sensitive adhesive emulsion of PET substrate for battery packaging, its preparation method and application

Examples

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Embodiment 1

[0045] A kind of acrylate pressure-sensitive adhesive emulsion of PET substrate for battery packaging, its preparation method, comprises the steps:

[0046] (1) Take by weighing 0.75g anionic emulsifier sodium dodecylbenzene sulfonate, 0.6g nonionic emulsifier polyoxyethylene ether sorbitol hexastearate, 0.1g buffer ammonium bicarbonate, 40g deionized water, Stir at room temperature to obtain an emulsifier aqueous solution; slowly add a mixed monomer consisting of 75g butyl acrylate, 24g methyl acrylate, 3.0g hydroxyethyl acrylate, 2.0g acrylic acid, 2.0g N-methylolacrylamide, stir for 30min, and the stirring speed is 600r / min to prepare a pre-emulsion.

[0047] (2) Weigh 0.42 g of ammonium persulfate, add 10 g of deionized water to dissolve, and obtain an aqueous initiator solution.

[0048] (3) Heat 60 g of deionized water to 80° C., add 7.37 g of pre-emulsion and keep it warm for 2 minutes, then add 5.21 g of initiator aqueous solution and keep it warm for 20 minutes to p...

Embodiment 2

[0054] A kind of acrylate pressure-sensitive adhesive emulsion of PET substrate for battery packaging, its preparation method, comprises the steps:

[0055] (1) Take by weighing 0.9g anionic emulsifier sodium dodecylbenzene sulfonate, 0.5g nonionic emulsifier polyoxyethylene ether sorbitol hexastearate, 0.3g buffer ammonium bicarbonate, 40g deionized water, Stir at room temperature to obtain an emulsifier aqueous solution; slowly add a mixed monomer consisting of 80g butyl acrylate, 20g methyl acrylate, 2.0g hydroxyethyl acrylate, 2.0g acrylic acid, 2.0g N-methylolacrylamide, stir for 30min, and the stirring speed is 600r / min to prepare a pre-emulsion.

[0056] (2) Weigh 0.2 g of ammonium persulfate, add 10 g of deionized water to dissolve, and obtain an aqueous initiator solution.

[0057] (3) Heat 60 g of deionized water to 80° C., add 7.38 g of pre-emulsion and keep it warm for 2 minutes, then add 5.1 g of initiator aqueous solution and keep it warm for 20 minutes to prep...

Embodiment 3

[0063] A kind of acrylate pressure-sensitive adhesive emulsion of PET substrate for battery packaging, its preparation method, comprises the steps:

[0064] (1) Take by weighing 1.0g anionic emulsifier sodium dodecylbenzene sulfonate, 0.8g nonionic emulsifier polyoxyethylene ether sorbitol hexastearate, 0.15g buffer ammonium bicarbonate, 40g deionized water, Stir at room temperature to obtain an aqueous emulsifier solution; slowly add a mixed monomer consisting of 80g isooctyl acrylate, 25g methyl methacrylate, 1.0g hydroxyethyl methacrylate, 1.0g methacrylic acid, and 1.5g N-methylolacrylamide , stirred for 30 min at a stirring speed of 600 r / min to prepare a pre-emulsion.

[0065] (2) Weigh 0.8 g of ammonium persulfate, add 10 g of deionized water to dissolve, and obtain an aqueous initiator solution.

[0066] (3) Heat 60 g of deionized water to 80° C., add 7.5 g of pre-emulsion and keep it warm for 2 minutes, then add 5.4 g of initiator aqueous solution and keep it warm fo...

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Abstract

The invention discloses an acrylate pressure sensitive adhesive emulsion of a PET substrate for battery packaging, a preparation method and application thereof. The pressure sensitive adhesive emulsion comprises the following components by weight: 75-85 parts of an acrylate soft monomer, 15-25 parts of an acrylate hard monomer, 2-5 parts of a functional monomer, 1-3 parts of an internal crosslinking monomer, 0.5-2 parts of an anionic emulsifier, 0.5-1 part of a non-ionic emulsifier, 0.1-0.3 part of a buffering agent, 0.02-0.1 part of a defoaming agent, 0.02-0.08 part of a wetting agent, 0.02-2parts of an initiator, 120 parts of water, 0.02-0.1 part of an oxidant, 0.04-0.1 part of a reducing agent, and 1-3 parts of a pH regulator. The pressure sensitive adhesive emulsion provided by the invention has good mechanical properties, can reduce the warping and cracking probability of the PET substrate and ensure the adhesive durability, and is green, low-carbon and environment-friendly.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an acrylate pressure-sensitive adhesive emulsion of a PET substrate for battery packaging, a preparation method and application thereof. Background technique [0002] The PET film used for battery packaging is aluminum-plastic composite. It wraps the battery with a small diameter. Due to the stress and elasticity of the PET film itself, it is easy to warp, crack or even fall off, thereby greatly reducing the aesthetics of the battery surface packaging and causing damage to the product. Negative impact. Therefore, the acrylate pressure-sensitive adhesive of the PET base material for battery packaging requires high mechanical performance indicators, and it is necessary to prevent the PET base material from warping. [0003] Currently, solvent-based acrylate pressure-sensitive adhesives are the main acrylate pressure-sensitive adhesives for PET substrates used in battery packaging. Solvent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C09J7/38C09J7/25C08F220/18C08F220/14C08F220/20C08F220/06C08F220/58
Inventor 陈国荣卫晓波丁荣炎吴秋心白永平李晶波席丹殷晓芬
Owner WUXI HAITE NEW MATERIAL RES INST