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Antistatic coating solution for PET film bottom layer and preparation method and application

An antistatic and coating liquid technology, applied in the direction of conductive coatings, coatings, etc., can solve the problems of large surface resistance, processing and use damage, etc., and achieve the effects of reduced surface resistance, stable performance, and stable system

Inactive Publication Date: 2017-07-07
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both technologies are relatively mature in terms of formulation and process, but both have excessive surface resistance after coating (T=25°C RH=60%-65%, R S >10 12 ohm) disadvantages, which bring fatal damage to the processing and use of subsequent products

Method used

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  • Antistatic coating solution for PET film bottom layer and preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The film-forming substance is 8.77% of vinylidene chloride-methacrylic acid-methyl acrylate ternary copolymer latex with a solid content of 10wt%,

[0030] Desalinated water 60.91%

[0031] 10wt% sodium hydroxide solution 0.1%

[0032] Conductive polythiophene dispersion PT2 3.07%

[0033] 25wt% silica dispersion 2.63%

[0034] 20wt% resorcinol aqueous solution 4.83%

[0035] 4wt% sodium lauryl sulfate aqueous solution 1.84%

[0036] 2wt% gelatin aqueous solution 0.35%

[0037] Volume fraction 95% ethanol 17.5%

[0038] Weigh the formula at a stirring speed of 100-700r / min and add it to the reactor in sequence according to the order of the materials listed above. After adding one substance, stir continuously for 10-30 minutes before adding the next substance, and all additions are completed. Afterwards, stir continuously for 30-60 minutes, filter, coat on the surface of PET film, and dry under the conditions of wind temperature 115°C and drying time 120s.

Embodiment 2

[0040] The film-forming substance is 8.77% of vinylidene chloride-methacrylic acid-methyl acrylate ternary copolymer latex with a solid content of 10wt%,

[0041] Desalinated water 60.91%

[0042] 10wt% potassium hydroxide solution 0.1%

[0043] Conductive polythiophene dispersion PT2 3.07%

[0044] 30wt% titanium dioxide dispersion 2.63%

[0045] 20wt% resorcinol aqueous solution 4.83%

[0046] Decadecondensed Polyoxyethylene Octylphenol Ether 1.84%

[0047] 2wt% gelatin aqueous solution 0.35%

[0048] Volume fraction 99.5% n-butanol 17.5%

[0049]Weigh the formula at a stirring speed of 100-700r / min and add it to the reactor in sequence according to the order of the materials listed above. After adding one substance, stir continuously for 10-30 minutes before adding the next substance, and all additions are completed. Afterwards, stir continuously for 30-60 minutes, filter, coat on the surface of PET film, and dry under the conditions of wind temperature 115°C and dryi...

Embodiment 3

[0051] The film-forming substance is 8.77% of methacrylic acid-butyl methacrylate-styrene ternary copolymer latex with a solid content of 10wt%,

[0052] Desalinated water 60.91%

[0053] 10wt% sodium hydroxide solution 0.1%

[0054] Conductive polythiophene dispersion PT2 3.07%

[0055] 30wt% silica dispersion 2.63%

[0056] 20wt% phenol aqueous solution 4.83%

[0057] Decadecondensed Polyoxyethylene Octylphenol Ether 1.84%

[0058] 2wt% gelatin aqueous solution 0.35%

[0059] Volume fraction 95% ethanol 17.5%

[0060] Weigh the formula at a stirring speed of 100-700r / min and add it to the reactor in sequence according to the order of the materials listed above. After adding one substance, stir continuously for 10-30 minutes before adding the next substance, and all additions are completed. Afterwards, stir continuously for 30-60 minutes, filter, coat on the surface of PET film, and dry under the conditions of wind temperature 115°C and drying time 120s.

[0061] After...

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Abstract

The invention relates to an antistatic coating solution for a PET film bottom layer and a preparation method and application thereof. The antistatic coating solution for the PET film bottom layer is prepared from, by mass, 7-9% of film forming matter, 2.5-3.5% of conductive type polythiophene dispersion solution PT2, 2.0-3.0% of anti-adhesion agent, 10-20% of defoaming agent, 1.0-3.0% of surface active agent, 4-5% of sweller, 0.3-0.4% of adhesive, 60-63% of desalted water and the balance other additives. The coating solution prepared through the method needs no corona assistance, a chemical coating treatment method is adopted, the high polymer antistatic agent conductive type polythipphene PT2 is successfully introduced into the bottom layer formula, on-board coating molding is achieved at a time, the problem that the resistance of the surface of the bottom layer is high is solved, the PET bottom layer surface resistance is greatly lowered, meanwhile, the chemical adhesion performance and other properties of the coating solution are not affected, the coating solution is stable in system, and the industrial continuous production requirement can be met.

Description

technical field [0001] The invention belongs to the technical field of printing supplies, and in particular relates to an antistatic coating liquid for a bottom layer of a PET film, a preparation method and application thereof. Background technique [0002] With the continuous progress and development of science and technology, there are many kinds of films made directly from polymers with different properties, such as polyethylene film (PE), polypropylene film (PP), polyvinyl chloride film (PVC), poly Ester film (PET), polystyrene film (PS), polyvinylidene chloride film (PVDC), ethylene-vinyl acetate copolymer film (EVA), etc., have developed hundreds of products according to different markets. Among them, polyester film (PET) has obvious advantages due to its unique properties, especially in transparency, moisture resistance, aging resistance, mechanical properties, etc., and its tensile strength and impact strength are much higher than ordinary films; and Good stiffness,...

Claims

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Application Information

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IPC IPC(8): C09D127/08C09D133/02C09D165/00C09D5/24C09D7/12C08J7/04C08L67/02
CPCC08J7/0427C08J2367/02C08J2427/08C08J2433/02C08L2201/04C08L2205/03C08L2205/035C09D5/24C09D7/61C09D7/63C09D127/08C09D133/02C08L65/00C08L89/00C08K13/02C08K3/36C08K5/13
Inventor 宗希民王乐耀郭佳亮马秋安王云香王卫东
Owner LUCKY HUAGUANG GRAPHICS
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