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Formula of binding layer slurry used for release film of synthetic leather and preparation method of the binding layer slurry

A bonding layer and release film technology, applied in coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of uneven coating surface and uneven coating, and achieve fast speed and good adhesion and flexibility, low energy consumption

Active Publication Date: 2018-01-19
南京盛凯新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bonding layer is located between the base material and the release layer. By adjusting the formulation of the bonding layer, the adhesion between the release layer and the base material can be improved, and the problems of uneven coating and uneven coating on the surface of the layer can be solved.

Method used

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  • Formula of binding layer slurry used for release film of synthetic leather and preparation method of the binding layer slurry
  • Formula of binding layer slurry used for release film of synthetic leather and preparation method of the binding layer slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of the slurry specially used for the production of the synthetic leather release film binding layer involved in this example: first weigh 5 parts of polytetrafluoroethylene, 2 parts of nano-alumina, and γ-aminopropyltriethoxysilane according to the formula quantity 0.5 parts, 3 parts of sodium dodecylbenzenesulfonate surfactant, 40 parts of polyurethane acrylate, 20 parts of epoxy acrylate and 20 parts of TMPTA solvent, 2 parts of dispersant sodium hexametaphosphate, defoamer ethylene glycol 0.5 part of distearate, 0.5 part of leveling agent polyether silicone.

[0029] Disperse the fluorocarbon resin, nanoparticles, and silane coupling agent in the TMPTA solvent with the assistance of the dispersant in the reaction kettle. After stirring evenly, continue stirring for 10 minutes at 40-50°C, and then add the surfactant, Polyurethane acrylate, epoxy acrylate, mix evenly, add defoamer to the obtained bonding layer slurry, let it stand for defoaming, ...

Embodiment 2

[0031] The preparation method of the slurry specially used for the production of synthetic leather release film binding layer involved in this example: first weigh 6 parts of polyvinylidene fluoride, 3 parts of nano-silicon dioxide, γ-glycidyl ether oxypropyl 1.8 parts of trimethoxysilane, 3.5 parts of surfactant dodecyl dimethyl benzyl ammonium chloride, 45 parts of polyurethane acrylate, 22 parts of epoxy acrylate and 22 parts of TMPTA solvent, 3 parts of dispersant sodium polyacrylate , defoaming agent polyoxypropylene polyoxyethylene glyceryl ether 0.7 parts, leveling agent polyether silicone 0.8 parts.

[0032]Disperse the fluorocarbon resin, nanoparticles, and silane coupling agent in the TMPTA solvent with the assistance of the dispersant in the reaction kettle. After stirring evenly, continue stirring at 50°C for 10 minutes, and then add the surfactant, polyurethane acrylic acid Ester, epoxy acrylate, mix evenly, add defoamer to the obtained bonding layer slurry, let i...

Embodiment 3

[0034] The preparation method of the slurry specially used for the production of synthetic leather release film bonding layer involved in this example: first weigh 7 parts of polyfluoroolefin-vinyl ether copolymer, 4 parts of nano-titanium dioxide, γ-methacryloyl 2.0 parts of oxypropyltrimethoxysilane, 4 parts of surfactant lauryl betaine, 50 parts of polyurethane acrylate, 24 parts of epoxy acrylate and 24 parts of TMPTA solvent, 4 parts of dispersant gelatin, defoamer 0.9 parts of ethylene glycol distearate, 1.1 parts of leveling agent polyether silicone.

[0035] Disperse the fluorocarbon resin, nanoparticles, and silane coupling agent in the TMPTA solvent with the assistance of a dispersant in the reaction kettle. After stirring evenly, continue stirring at 40°C for 10 minutes, and then add surfactant, polyurethane acrylic acid Ester, epoxy acrylate, mix evenly, add defoamer to the obtained bonding layer slurry, let it stand for defoaming, and finally add leveling agent to...

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Abstract

The invention discloses a formula of binding layer slurry used for a release film of synthetic leather and a preparation method of the binding layer slurry. The binding layer slurry includes, by weight, 5-10 parts of fluorocarbon resin, 2-8 parts of nano-particles, 0.5-2 parts of a silane coupling agent, 3-6 parts of a surfactant, 40-60 parts of polyurethane acrylate, 20-30 parts of epoxy acrylate, 20-30 parts of a TMPTA solvent, 2-7 parts of a dispersant, 0.5-1.5 parts of a defoamer, and 0.5-2 parts of a flatting agent. By means of the raw materials, which are cooperated with each other, in the formula, a binding layer has excellent adhesion force and flexibility, and can solve problems of an uneven and non-uniform coating surface when the surface of a base material is coated with a release agent directly. In addition, the binding layer is mainly used for improving combination between the base material and a release layer by being applied between the base material and the release layer and improving the performance of the release layer during production of the release film.

Description

technical field [0001] The invention relates to the field of synthetic leather release film coating and its preparation process, in particular to a formula specially used for producing synthetic leather release film bonding layer slurry and a preparation method thereof. Background technique [0002] Synthetic leather release film is made of polyethylene terephthalate plastic (abbreviated as PET), polyimide (abbreviated as PI), nylon (abbreviated as PA), etc. A material whose surface has the characteristic of low surface energy. When the adjacent adhesive is peeled from the release surface, the release material can be easily peeled off or removed without damaging the physical properties of the adhesive. Among them, the widely used PET film as the base film has higher cost performance and is more suitable for large-scale commercial and mass production. Synthetic leather release film is characterized by smooth surface, high cleanliness, and stable size in subsequent use. For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D127/18C09D127/16C09D7/61C09D7/63D06N3/00
Inventor 孙蕴宝陈昌盛
Owner 南京盛凯新材料有限公司
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