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Waterborne light-cured modified chlorinated polypropylene coating polymer for polypropylene films and preparation method and application thereof

A technology of chlorinated polypropylene and polypropylene film, which is applied in the direction of coating, etc., can solve the problems of small force and weak adhesion of printing ink, etc., and achieve improved adhesion, good adhesion effect, and high adhesion Good results

Inactive Publication Date: 2014-08-27
东莞市清和新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there are no active groups in the molecular structure of chlorinated polypropylene, the force between printing ink and printing ink is small, and the adhesion to printing ink is not strong

Method used

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  • Waterborne light-cured modified chlorinated polypropylene coating polymer for polypropylene films and preparation method and application thereof
  • Waterborne light-cured modified chlorinated polypropylene coating polymer for polypropylene films and preparation method and application thereof
  • Waterborne light-cured modified chlorinated polypropylene coating polymer for polypropylene films and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) In parts by weight, take 20 parts of chlorinated polypropylene (35% by mass percentage of chlorine) and 75 parts of butyl acetate and dissolve them in a reactor with a stirrer and a condenser tube, stir for 30min, and heat up to 95°C , add 2 parts of methacrylic acid, 1 part of maleic anhydride, 3 parts of hydroxyethyl methacrylate, 1 part of ethyl acrylate, 1.2 parts of di-tert-butyl peroxide, and react for 9h. Then cool down, add 1 part of pyridine, 0.5 part of 4-dimethylaminopyridine, and 1.2 parts of cinnamoyl chloride under ice bath, and continue to react for 6 hours. ;

[0030] Dissolve 30 parts of the above-mentioned coating polymer in butyl acetate, add 65 parts of water after neutralization, stir and disperse, remove butyl acetate to obtain an emulsion-like polypropylene film with a solid content of 32% and water-based photocuring Modified chlorinated polypropylene coating material.

[0031] (2) Take the coating material and apply a film with a thickness ...

Embodiment 2

[0034] (1) In parts by weight, take 20 parts of chlorinated polypropylene (40% by mass percentage of chlorine) and 65 parts of toluene and dissolve them in a reactor with a stirrer and a condenser tube, stir for 30min, heat up to 100°C, add 2 parts of acrylic acid, 1.3 parts of maleic anhydride, 3 parts of hydroxyethyl methacrylate, 1 part of propyl methacrylate, 1 part of benzoyl peroxide, and react for 7 hours. Then lower the temperature, add 2 parts of triethylamine and 2 parts of cinnamoyl chloride under an ice bath, continue to react for 6 hours, and obtain a polypropylene film after purification with a water-based photocurable modified chlorinated polypropylene coating polymer;

[0035] Take 25 parts of the above-mentioned coating polymer and dissolve it in toluene, add 70 parts of water after neutralization to neutrality, stir and disperse, remove the toluene, and obtain an emulsion-like polypropylene film with a solid content of 26%. Polypropylene coated material.

[...

Embodiment 3

[0039] (1) In parts by weight, take 20 parts of chlorinated polypropylene (35% by mass percentage of chlorine) and 60 parts of toluene and dissolve them in a reactor with a stirrer and a condenser, stir for 30 minutes, heat up to 110°C, add 1 part of acrylic acid, 1 part of maleic anhydride, 2.5 parts of hydroxyethyl methacrylate, 1 part of methyl acrylate, 1.2 parts of benzoyl peroxide, and react for 6 hours. Then cool down, add 2 parts of pyridine and 1.5 parts of cinnamoyl chloride under ice bath, continue to react for 4 hours, and obtain polypropylene film after purification with water-based photocurable modified chlorinated polypropylene coating polymer;

[0040]Dissolve 25 parts of the above-mentioned coating polymer in xylene, add 60 parts of water after neutralization to neutrality, remove toluene after stirring and dispersing, and obtain an emulsion-like polypropylene film with a solid content of 30% and water-based photocurable modified chlorine dioxide. Polypropylen...

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Abstract

The invention belongs to the field of polymer coating materials, and discloses a waterborne light-cured modified chlorinated polypropylene coating polymer for polypropylene films, a preparation method and an application thereof. The polymer has a structure as shown in the description, wherein R is H or CH3, and n=1-8. The coating polymer is prepared by adopting chlorinated polypropylene with a similar structure to BOPP as a skeleton polymer, and performing modification of chlorinated polypropylene by various acrylates. Environment-friendly waterborne coating materials can be prepared by the coating polymer, and the coating materials have excellent adhesion to BOPP. The prepared coating materials have high surface energy, and strong bonding power, and provide printing ink with good spreading and bonding effects on the coating materials. The coating materials also contain light-curable structure, thus have light-curability, and can be embedded into a printing ink cross-linked network during printing, which improves the bonding power between the coating materials and the printing ink. The coating polymer of the invention can reach the purpose of synchronous realization of bonding power improvement between the coating and BOPP and between the coating and printing ink.

Description

technical field [0001] The invention belongs to the field of polymer coating materials, and in particular relates to a water-based light-curing modified chlorinated polypropylene coating polymer for a polypropylene film and a preparation method and application thereof. Background technique [0002] Food packaging, electrical product packaging, daily necessities packaging, clothing packaging, etc. are inseparable from plastic packaging. At present, the most important packaging plastic film is biaxially oriented polypropylene film (BOPP). Exquisite packaging is inseparable from printing, but BOPP belongs to polyolefin film, which has no polarity, low surface energy, and low adhesion of ink on the film, so printing is difficult. Coating method is an effective method to improve the adhesion between BOPP film and printing ink. The so-called coating method is to apply a certain polymer solution on the surface of the film, and then apply ink on the coating for printing. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F220/06C08F222/06C08F220/28C08F220/18C09D151/00
Inventor 刘伟区谭建权李海霞
Owner 东莞市清和新型材料科技有限公司
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