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A kind of polyurethane flash waterproof coating for zipper and preparation method thereof

A waterproof coating and polyurethane technology, which is applied in the field of waterproof coating for zippers, can solve the problems of zippers not having durability, flashing material exposed, coating cracking, etc., and achieve high ornamental value, improved stability, and uniform thickness

Active Publication Date: 2021-01-05
东莞市瑞翔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

During the washing process, if the coating is not water-resistant, it will easily cause the coating to crack, and the glitter will be exposed or even detached, resulting in the zipper not being durable

Method used

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  • A kind of polyurethane flash waterproof coating for zipper and preparation method thereof
  • A kind of polyurethane flash waterproof coating for zipper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method for a polyurethane flash waterproof coating for slide fasteners, comprising the steps of:

[0031] (1) Preparation of polyurethane prepolymer: Mix 60 parts by weight of polyether polyol, 0.5 parts by weight of catalyst, and 30 parts by weight of isocyanate, heat up to 60°C to obtain a mixed solution, and add 15 parts by weight of polyamide to the mixed solution - Glitter microbeads and 9 parts by weight of a chain extender, heated up to 75°C, and reacted for 5 hours to obtain a polyurethane prepolymer;

[0032] (2) Preparation of coating: the polyurethane prepolymer obtained by adding 30 parts by weight of polyamide-glitter beads, 25 parts by weight of reactive diluent monomer, 1.5 parts by weight of photoinitiator and step (1) into 15 parts by weight of After stirring in deionized water at a speed of 1300 rpm for 12.5 minutes, 8 parts by weight of a leveling agent was added, and the mixture was stirred at 500 rpm for 9 minutes to obtain the polyure...

Embodiment 2

[0044] A preparation method for a polyurethane flash waterproof coating for slide fasteners, comprising the steps of:

[0045] (1) Preparation of polyurethane prepolymer: Mix 50 parts by weight of polyether polyol, 0.1 part by weight of catalyst, and 20 parts by weight of isocyanate, heat up to 50°C to obtain a mixed solution, and add 10 parts by weight of polyamide to the mixed solution - Flash microbeads and 6 parts by weight of a chain extender are heated up to 70°C and reacted for 3.5 hours to obtain a polyurethane prepolymer;

[0046] (2) Preparation of coating: 20 parts by weight of polyamide-glitter beads, 20 parts by weight of reactive diluent monomer, 1 part by weight of photoinitiator and the polyurethane prepolymer obtained in step (1) are added to 10 parts by weight of After stirring in deionized water at a speed of 1200 rpm for 15 minutes, 6 parts by weight of a leveling agent was added, and the mixture was stirred at a speed of 400 rpm for 12 minutes to obtain th...

Embodiment 3

[0058] A preparation method for a polyurethane flash waterproof coating for slide fasteners, comprising the steps of:

[0059] (1) Preparation of polyurethane prepolymer: Mix 70 parts by weight of polyether polyol, 1 part by weight of catalyst, and 40 parts by weight of isocyanate, heat up to 70°C to obtain a mixed solution, and add 20 parts by weight of polyamide to the mixed solution - Glitter microbeads and 12 parts by weight of a chain extender, heated up to 80°C, and reacted for 7 hours to obtain a polyurethane prepolymer;

[0060] (2) Preparation of coating: 40 parts by weight of polyamide-glitter beads, 30 parts by weight of reactive diluting monomer, 2 parts by weight of photoinitiator and the polyurethane prepolymer obtained in step (1) are added to 20 parts by weight of After stirring at 1400 rpm for 10 minutes in deionized water, 10 parts by weight of a leveling agent was added, and the mixture was stirred at 600 rpm for 6 minutes to obtain the polyurethane flash wa...

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Abstract

The invention relates to the technical field of waterproof paint for zippers and in particular relates to polyurethane flash waterproof paint for zippers and a preparation method of the polyurethane flash waterproof paint. The waterproof paint comprises polyether polyol, isocyanate, polyamide-flash beads, a chain extender, a catalyst, an active diluent monomer, a photoinitiator, a flatting agent and deionized water, wherein the polyamide-flash beads are composed of flash beads and a polyamide layer coating the flash beads. According to the waterproof paint disclosed by the invention, the flashbeads are coated by adopting the polyamide, so that the flash beads are uniformly dispersed in deionized water. The polyamide layer has many hydroxide radicals and can perform cross-linking polymerization with isocyanate, carbon-carbon double bonds in the polyamide layer can also carry out a polymerization reaction with the active diluent monomer, so that the stability of the polyamide-flash beads in the paint is improved. The coating can achieve excellent waterproof property and mechanical property, and the ornamental value is high.

Description

technical field [0001] The invention relates to the technical field of zipper waterproof coatings, in particular to a polyurethane flash waterproof coating used for zippers and a preparation method thereof. Background technique [0002] A zipper is a connecting piece that relies on continuously arranged chain elements to merge or separate items. It is now widely used in clothing, bags, tents, etc. As an important part of carrying chain teeth and other zipper components, the zipper bag will also have a great impact on the overall appearance of the garment. The existing zipper tapes have a single way of expression, generally only for simple color expression, and dyeing is also easy to cause problems such as fading and fading. [0003] In order to meet the needs of pursuing fashion and individuality, it is popular to add gold and silver onion powder to viscous fluids or liquid adhesives such as hairspray, personalized clothing spray glue, nail polish, etc., in order to achieve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D177/00C09D7/62
CPCC09D175/08C09D7/62C08L77/00C08K9/10C08K7/20
Inventor 吴小锐
Owner 东莞市瑞翔新型材料科技有限公司
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