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A kind of preparation method of PVDC resin for inner printing film

A technology of resin and printing film, which is applied in the field of PVDC resin preparation for lining printing film, to achieve the effects of low haze, excellent product performance and strong layering of the picture

Active Publication Date: 2018-06-22
ELECTROCHEM PLANT OF ZHEJIANG JUHUA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many researchers have improved the performance of PVDC resin from the optimization of PVDC resin post-processing equipment, etc., which cannot fundamentally solve the problems existing in the performance of ordinary PVDC resin.

Method used

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  • A kind of preparation method of PVDC resin for inner printing film
  • A kind of preparation method of PVDC resin for inner printing film
  • A kind of preparation method of PVDC resin for inner printing film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of PVDC resin for printing membrane, comprises the following steps:

[0033] (1) Prepare the reaction raw materials for subsequent use, and the reaction raw materials consist of:

[0034]

[0035] (2) Preparation of pH value buffer regulator aqueous solution and dispersant aqueous solution: Sodium pyrophosphate 22g is mixed with deionized water 2kg to be formulated with pH value buffer regulator aqueous solution; Methyl cellulose ether 20g is mixed with deionized water 5kg with dispersant aqueous solution ;

[0036] (3) Add 5kg of deionized water into a 100L polymerization kettle (stainless steel polymerization kettle with stirring device, length-to-diameter ratio of 2:1, double-layer two-page 45° inclined paddle), seal the kettle for pressure test and leak test, and add after vacuuming VDC monomer, VCM monomer, diisopropyl peroxydicarbonate, butyl methacrylate and methyl methacrylate copolymer resin, after dispersing at a speed of 90rpm...

Embodiment 2

[0041] A kind of preparation method of PVDC resin for printing membrane, comprises the following steps:

[0042] (1) Prepare the reaction raw materials for subsequent use, and the reaction raw materials consist of:

[0043]

[0044] (2) Preparation of pH value buffer regulator aqueous solution and dispersant aqueous solution: Sodium pyrophosphate 30g is mixed with deionized water 2kg to be formulated with pH value buffer regulator aqueous solution; With methyl cellulose 22.5g, is mixed with deionized water 5kg into dispersant aqueous solution;

[0045] (3) Add 5kg of deionized water into a 100L polymerization kettle (stainless steel polymerization kettle with stirring device, length-to-diameter ratio of 2:1, double-layer two-page 45° inclined paddle), seal the kettle for pressure test and leak test, and add after vacuuming VDC monomer, VCM monomer, diisopropyl peroxydicarbonate, lauryl peroxide, butyl methacrylate and methyl methacrylate copolymer resin, after dispersing a...

Embodiment 3

[0050] A kind of preparation method of PVDC resin for printing membrane, comprises the following steps:

[0051] (1) Prepare the reaction raw materials for subsequent use, and the reaction raw materials consist of:

[0052]

[0053] (2) Preparation of pH value buffer regulator aqueous solution and dispersant aqueous solution: Sodium pyrophosphate 30g is mixed with deionized water 2kg to be mixed with pH value buffer regulator aqueous solution; With methylcellulose 18g, be mixed with deionized water 5kg to be mixed with dispersant aqueous solution ;

[0054] (3) Add 5kg of deionized water into a 100L polymerization kettle (stainless steel polymerization kettle with stirring device, length-to-diameter ratio of 2:1, double-layer two-page 45° inclined paddle), seal the kettle and test the pressure and leak. After vacuuming, add VDC monomer, VCM monomer, diisopropyl peroxydicarbonate, butyl methacrylate and methyl methacrylate copolymer resin and disperse at 120rpm / min for 28 m...

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Abstract

The invention discloses a preparation method of PVDC resin for an inner printed film. The method comprises the following steps: enabling polymerization reaction of 120 to 145 parts by weight of de-ionized water, 70 to 85 parts by weight of vinylidene chloride monomers, 15 to 30 parts by weight of vinyl chloride monomers, 0.1 to 0.5 part of an initiator, 0.05 to 0.3 part of a pH value buffer-conditioning agent, 0.05 to 0.15 part by weight of a dispersing agent, 0.5 to 1.85 parts by weight of a plasticizer, 0.03 to 0.3 part by weight of a lubricant and 0.5 to 2 parts by weight of acrylic acid resin, terminating polymerization reaction after reaction is performed for 38 to 48 hours, removing residual monomers under a vacuum condition, and performing cooling, discharging, centrifugation and drying; adding the plasticizer and the lubricant into a dried material, and performing mixing and aging at 60 to 70 DEG C to obtain a PVDC resin product for the inner printed film. A process is safe and simple, a polymerization reaction process is stable and free of centralized heat release, and a picture of an inner printed packaging film prepared by the product has a strong sense of layering and good brightness and luster.

Description

technical field [0001] The present invention relates to the preparation method of PVDC resin, more specifically, the present invention relates to a kind of preparation method of PVDC resin used for inner printing film. Background technique [0002] PVDC is an ideal packaging material with high barrier properties, strong toughness, good thermal shrinkage and chemical stability. In addition to the general properties of plastics, it also has oil resistance, corrosion resistance, taste retention, and excellent oxygen barrier, moisture-proof and mildew-proof properties, which can be directly in contact with food. It also has good printing properties and can be greatly extended. Food shelf life, at present, has been widely used in meat products, convenience food, dairy products, cosmetics and other safe food packaging, high-end pharmaceutical packaging and other fields. With the economic globalization and the improvement of people's living standards, and the change of aesthetic c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/08C08L33/10C08L91/00C08L33/12C08K13/02C08K5/11C08K5/20C08K5/09C08K5/103C08F214/08C08F214/06
CPCC08F214/08C08K2201/014C08L27/08C08L2201/10C08L2203/16C08L2205/035C08L33/10C08L91/00C08K13/02C08K5/11C08K5/20C08L33/12C08K5/09C08K5/103C08F214/06
Inventor 韩金铭何坚华汤阳吴志刚王正良吴宇鹏余云飞余卫兵
Owner ELECTROCHEM PLANT OF ZHEJIANG JUHUA
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