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PVDC waterborne emulsion used for coating

A water-based emulsion and coating technology, used in coatings, latex paints, fire-retardant coatings, etc., can solve the problems of barrier properties that dissolve harmful substances, poor thermal stability and anti-yellowing ability, and low impact strength. High impact strength, strong anti-yellowing ability and good barrier properties

Active Publication Date: 2018-09-04
ZHEJIANG QUZHOU JUSU CHEM IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVC, PET, nylon, PCT and other hard sheets have uniform thickness, good sealing performance, fast heat sealing, easy molding, low price, anti-ultraviolet and radiation resistance, and have been widely used in tablets, capsules, injections, oral liquids and other medicines Internal and external packaging, but PVC hard film also has fatal flaws: it will dissolve harmful substances and poor barrier performance
The disadvantage is that the impact strength is low
The disadvantage is poor thermal stability and anti-yellowing ability

Method used

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  • PVDC waterborne emulsion used for coating
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  • PVDC waterborne emulsion used for coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of coating water-based PVDC emulsion, its raw material formula is as follows:

[0026]

[0027]

[0028] The preparation steps are as follows:

[0029] (1) Configuration of initiator aqueous solution: Weigh 0.005kg of ammonium persulfate (APS), make ammonium persulfate aqueous solution I with 2kg of deionized water, and set aside; weigh 0.02kg of sodium metabisulfite (SMBS), and use 3kg of deionized water Water is made into sodium metabisulfite aqueous solution, and it is set aside; 0.017kg of ammonium persulfate (APS) is weighed, and 3kg of deionized water is made into ammonium persulfate aqueous solution II, and set aside;

[0030] (2) Configure the premix: 49.51kg of vinylidene chloride monomer, 2.91kg of methyl acrylate, 2.91kg of butyl acrylate, 2.33kg of itaconic acid, 0.58kg of acrylic acid, 0.41kg of octadecyl Potassium lauryl carboxylate of sodium sulfate, 0.41kg, sodium pentadecylbenzenesulfonate of 0.82kg, sodium bicarbonate of 0.02kg, ammonium ...

Embodiment 2

[0035] A kind of coating water-based PVDC emulsion, its raw material formula is as follows:

[0036]

[0037]

[0038] The preparation method is the same as in Example 1, and the performance parameters of the emulsion are shown in Table 1.

Embodiment 3

[0040] A kind of coating water-based PVDC emulsion, its raw material formula is as follows:

[0041]

[0042]

[0043] The preparation method is the same as in Example 1, and the performance parameters of the emulsion are shown in Table 1.

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Abstract

The invention discloses a PVDC waterborne emulsion used for coating. The PVDC waterborne emulsion is prepared from the following components by weight: 1 to 5 parts of a seed monomer, 45 to 55 parts ofa VDC monomer, 4 to 10 parts of a comonomer, 0.01 to 0.05 part of an initiator, 0.1 to 0.5 part of a seed emulsifier, 0.5 to 3 parts of an emulsifier, 0.01 to 0.05 part of an auxiliary agent, 0.001 to 0.01 part of a modifying auxiliary agent and 35 to 40 parts of deionized water. The PVDC waterborne emulsion provided by the invention is coated onto hard sheets of PVC, PET, nylon, PCT and the liketo form composite hard sheets, and has the advantages of high impact strength, small possibility of crack generation, good barrier properties, no dissolution of harmful substances, capability of directly contacting with chemicals, high thermal stability, strong yellowing resistance, etc.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a PVDC aqueous emulsion for coating. Background technique [0002] PVC, PET, nylon, PCT and other hard sheets have uniform thickness, good sealing performance, fast heat sealing, easy molding, low price, anti-ultraviolet and radiation resistance, and have been widely used in tablets, capsules, injections, oral liquids and other medicines Internal and external packaging, but PVC hard film also has fatal flaws: it will dissolve harmful substances and have poor barrier properties. As a plastic packaging material, PVDC has the advantages of portability, no leaching of harmful substances, direct contact with food and drugs, high barrier property, low price, and convenient promotion. It has been widely used in the field of drug and food packaging. At present, PVDC emulsion is widely used in the field of food and pharmaceutical packaging. Coating PVDC emulsion on PVC, PET, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/16C09D5/02C09D7/65C08F214/08C08F220/14C08F220/18C08F220/06C08F220/44C08F222/02C08F2/26C08J7/04C08L27/06
CPCC08F2/26C08F214/08C08F220/06C08F220/14C08F220/1804C08F220/44C08F222/02C08J7/0427C08J2327/06C08L2201/08C08L2205/03C09D5/024C09D5/18C09D127/16C08L83/04C08L71/02
Inventor 尹作柱吴志刚苏兰辉吴宇鹏吕颖琦赵鑫犇马从礼
Owner ZHEJIANG QUZHOU JUSU CHEM IND CO LTD
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