Dual-curing varnish, and preparation method and application thereof

A dual-curing and clear topcoat technology, which is applied to the device and coating of the surface coating liquid, can solve the problems of brittle adhesion of the paint film, affect the sound of musical instruments, and poor board surface effects, etc., and achieve high adhesion , Improve fullness, improve product quality and production efficiency

Active Publication Date: 2021-02-12
GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hardness of the conventional PU glossy finish is soft, which will affect the timbre of the musical instrument, and the polishing is poor. It is easy to cause prickly heat when thickly applied in high temperature environments. However, the effect of the paint film on the surface of the PE glossy finish is not good under low temperature conditions. Easy to produce pinholes, and the paint film is too brittle and has poor adhesion

Method used

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  • Dual-curing varnish, and preparation method and application thereof
  • Dual-curing varnish, and preparation method and application thereof
  • Dual-curing varnish, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of Acrylate Hua Petroleum Resin

[0023] In this embodiment, five treatment groups are set up, which are respectively marked as treatment 1, treatment 2, treatment 3, treatment 4 and treatment 5, and each treatment group prepares one kind of acrylated petroleum resin, and the specific method is as follows.

[0024] Processing 1:

[0025] (1) Add 25g of C9 petroleum resin and 95mL of n-heptane into a four-necked flask equipped with a stirrer, a thermometer, and a reflux condenser, start stirring, adjust the temperature, dissolve the petroleum resin, raise the temperature to 80°C, and add 0.75g of Azobisisobutyronitrile (AIBN), 26 mL of glycidyl methacrylate was slowly added dropwise, and the reaction was completed to obtain a crude product.

[0026] (2) Add a certain amount of absolute ethanol solution to the crude product, precipitate, filter with suction, and finally place the product in a drying oven at 60°C to dry to constant weight to obtain acrylate...

Embodiment 2

[0065] This embodiment is based on the performance test results of Example 1, adopts the acrylated petroleum resin ⑤ obtained in Example 1 as the unsaturated resin component, and prepares formula 2-1 and formula according to the formula components recorded in Table 4 respectively 2-2, formula 2-3 (equivalent to formula 1-5 of embodiment 1), formula 2-4 and formula 2-5 required materials. The diluent components involved in Table 4 are formulated by mixing the following solvents according to specific mass percentages: 23% butyl acetate, 20% polymethacrylate, 15% methyl isobutyl ketone, 18% toluene and Styrene 24%.

[0066] The mass parts of the varnish formula provided by the present embodiment of table 4 form

[0067]

[0068]

[0069] After forming the ingredients according to the formula shown in Table 4, prepare the clear topcoat corresponding to formula 2-1, formula 2-2, formula 2-3, formula 2-4 and formula 2-5 according to the following steps:

[0070] Step 1, weig...

Embodiment 3

[0086] 1. Preparation of Dual Curing Clear Topcoat

[0087] In this example, based on the performance test results of Example 1, formulations 1-5 of Example 1 were used to conduct an exploratory experiment on the influence of diluent components on the performance of the clear finish paint. Prepare different diluents according to the diluent components in Table 6.

[0088] The component composition of the diluent prepared by the present embodiment of table 6

[0089]

[0090]

[0091] The diluent 1 provided in this example is the diluent components and diluent used in the formulations 1-5 of Example 1.

[0092] The diluent 2 provided by this embodiment is used to replace the diluent component in the formula 1-5 of Example 1, and according to the preparation method and construction process of the dual-curing clear topcoat provided in Example 1, wherein diluent 2 The diluting solvent used in the alternative preparation method, other material compositions and process param...

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Abstract

The invention provides a dual-curing varnish which comprises the following components in percentage by mass: 40-46% of unsaturated resin and 40-46% of fatty acid resin, wherein the unsaturated resin is acrylic acid esterification unsaturated resin. A paint film formed by the dual-curing varnish provided by the invention has excellent properties of high hardness, high fullness, high gloss, high adhesive force and high wear resistance, also has good drying property even under a low-temperature condition, and is not easy to generate prickly heat even under a high-temperature condition, therefore,the varnish has high smoothness during construction, and the formed paint film has favorable appearance.

Description

technical field [0001] The invention belongs to the field of chemical coatings, and in particular relates to a dual-curing clear finish paint and its preparation method and application. Background technique [0002] With the development of social life, people's pursuit of the quality of musical instruments is getting higher and higher. Spraying is an important link in the production of industrial musical instruments. It can improve the corrosion resistance, wear resistance, hardness and aesthetics of musical instruments, and can protect Long-term use of musical instruments enables long-term collection of musical instruments. In recent years, musical instruments such as guitars have been developing toward higher grades. In particular, the glossy topcoat applied to the surface of musical instruments requires not only good transparency, high brightness, high fullness, and sufficient hardness to meet customer requirements. However, the hardness of the conventional PU glossy fin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/08C09D157/02C09D7/61B05D7/24B05D1/04
CPCC09D201/08C09D7/61C09D7/70B05D7/24B05D1/04C08L2205/035B05D2502/00C08L57/02C08L83/12C08L33/04C08K7/26
Inventor 符成珊周伟建范昌平符传杰符英苑
Owner GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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