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LED-UV solvent-free spraying primer and method for coating thermosensitive substrates such as paper, solid wood and plastic with LED-UV solvent-free spraying primer

A primer, solvent-free technology, applied in primers, devices for coating liquid on the surface, coatings, etc., can solve problems such as cracking and peeling of the surface paint layer, and achieve improved adhesion and wet adhesion Concentrating on and improving the effect of anti-shedding performance

Active Publication Date: 2020-05-29
成都迪泰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the above-mentioned solutions are conducive to improving the leveling of UV paint, thereby improving the spraying effect of UV paint, but LED-UV paint is irradiated with ultraviolet rays to make it dry instantly, and cannot penetrate into the substrate. , which will cause the paint layer to be easily peeled off from the substrate, especially when the substrate naturally expands and shrinks, it will cause the problem of cracking of the surface paint layer

Method used

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  • LED-UV solvent-free spraying primer and method for coating thermosensitive substrates such as paper, solid wood and plastic with LED-UV solvent-free spraying primer
  • LED-UV solvent-free spraying primer and method for coating thermosensitive substrates such as paper, solid wood and plastic with LED-UV solvent-free spraying primer
  • LED-UV solvent-free spraying primer and method for coating thermosensitive substrates such as paper, solid wood and plastic with LED-UV solvent-free spraying primer

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Example 1 is an LED-UV solvent-free spraying primer and its method for coating heat-sensitive substrates such as paper, solid wood, plastics, etc. disclosed by the present invention. The primer includes the following components in parts by weight:

[0042] Component Parts by weightComponent Parts by weight Modified epoxy resin65 Titanium Dioxide3.75 N-butyl methacrylate35 Silicone leveling agent0.4 Triphenyl silicon o-nitrobenzyl ether3.5 Polyacrylate0.3 diatomite6.25 Alkylsiloxane0.3

[0043] Modified epoxy resin is composite fiber / phenolic / epoxy resin;

[0044] The composite fiber is a compound of ramie fiber and carbon fiber with a mass fraction ratio of 1:0.55;

[0045] The preparation method of LED-UV solvent-free spray primer is:

[0046] A1. Preparation of composite fiber: ramie bone and carbon fiber are respectively dried and coarsely ground and finely ground into powder, and then the two are pulverized into nano-sized powder in a nano-pulverizer; then nano-sized ...

Embodiment 2

[0060] Embodiment 2 is an LED-UV solvent-free spraying primer and its method for coating heat-sensitive substrates such as paper, solid wood, plastics, etc. disclosed by the present invention. The primer includes the following components in parts by weight:

[0061] Component Parts by weightComponent Parts by weight Modified epoxy resin55 Titanium Dioxide1.875 N-butyl methacrylate30 Silicone leveling agent0.2 Triphenyl silicon o-nitrobenzyl ether2 Polyacrylate0.1 diatomite3.125 Alkylsiloxane0.1

[0062] Modified epoxy resin is composite fiber / phenolic / epoxy resin;

[0063] The composite fiber is a compound of ramie fiber and carbon fiber with a mass fraction ratio of 1:0.55;

[0064] The preparation method of LED-UV solvent-free spray primer is:

[0065] A1. Preparation of composite fiber: ramie bone and carbon fiber are respectively dried and coarsely ground and finely ground into powder, and then the two are pulverized into nano-sized powder in a nano-pulverizer; then nano-siz...

Embodiment 3

[0079] Embodiment 3 is an LED-UV solvent-free spray primer and its method for coating heat-sensitive substrates such as paper, solid wood, plastics, etc. disclosed by the present invention. The primer includes the following components in parts by weight:

[0080] Component Parts by weightComponent Parts by weight Modified epoxy resin75 Titanium Dioxide5.625 N-butyl methacrylate40 Silicone leveling agent0.6 Triphenyl silicon o-nitrobenzyl ether5 Polyacrylate0.5 diatomite9.375 Alkylsiloxane0.5

[0081] Modified epoxy resin is composite fiber / phenolic / epoxy resin;

[0082] The composite fiber is a compound of ramie fiber and carbon fiber with a mass fraction ratio of 1:0.55;

[0083] The preparation method of LED-UV solvent-free spray primer is:

[0084] A1. Preparation of composite fiber: ramie bone and carbon fiber are respectively dried and coarsely ground and finely ground into powder, and then the two are pulverized into nano-sized powder in a nano-pulverizer; then nano-sized ...

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Abstract

The invention relates to LED-UV solvent-free spraying primer and a method for coating thermosensitive substrates such as paper, solid wood and plastic with the LED-UV solvent-free spraying primer. Theprimer is prepared from the following components in parts by weight: 55-75 parts of modified epoxy resin, 30-40 parts of n-butyl methacrylate, 2-5 parts of triphenyl silicon o-nitrobenzyl ether, 5-15parts of filler, 0.2-0.6 parts of a leveling agent, 0.1-0.5 parts of a dispersing agent and 0.1-0.5 parts of an antifoaming agent. The modified epoxy resin is composite fiber / phenolic aldehyde / epoxyresin. The coating method comprises the following steps: A1, preparing composite fibers; A2, preparing composite fiber / phenolic aldehyde / epoxy resin; A3, mixing the base materials; A4, mixing the auxiliary agents; and A5, preparing a finished product. The paint has the effect of improving the anti-falling performance of the paint layer.

Description

Technical field [0001] The invention relates to the technical field of coating coating, in particular to an LED-UV solvent-free spray primer and a method for coating heat-sensitive substrates such as paper, solid wood, and plastic. Background technique [0002] LED-UV paint is ultraviolet actinic paint, also known as light-initiated paint or light-cured paint. LED-UV paint and PU, PE, NC and other paints have different names based on different film-forming substances. The LED-UV paint is named after the curing method of the paint. It is automatically roll-coated and drenched onto the furniture board through machinery and equipment. Under the irradiation of ultraviolet light, it promotes the decomposition of the initiator, generates free radicals, and initiates the resin reaction. Instantly solidify into a film. The content of harmful benzene and other solvents in LED-UV paint is 0, and the VOC of volatile organic compound is 0. It does not contain the toxic ingredients in tradi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/06C09D4/02C09D5/00C09D7/61D21H19/62D21H19/48D21H19/64D21H19/52D21H21/14B05D7/24B05D7/06B05D7/02
CPCB05D7/02B05D7/06B05D7/24B05D2201/02B05D2203/20B05D2203/22B05D2504/00C09D4/06C09D5/002C09D7/61C09D7/70D21H19/48D21H19/52D21H19/62D21H19/64D21H21/14
Inventor 刘国良陈洪章
Owner 成都迪泰化工有限公司
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