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Dual UV curable peelable coating and preparation method thereof

A strippable and dual technology, applied in the field of double UV curing strippable coatings and its preparation, can solve the problems of easy rust on the metal surface, long drying time, and restrictions on popularization and application, and achieve short drying time, easy control, and technical mature effect

Inactive Publication Date: 2016-03-16
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, although solvent-based strippable coatings have good performance, they gradually fade out of the market because they do not meet environmental protection requirements. Although the current UV strippable coatings meet environmental protection requirements, they have a long drying time (2-3 hours). The surface of the object is easy to rust and other problems, it is difficult to meet the needs of high-performance coatings for rapid production on high-speed production lines and social development, which greatly limits its popularization and application

Method used

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  • Dual UV curable peelable coating and preparation method thereof
  • Dual UV curable peelable coating and preparation method thereof
  • Dual UV curable peelable coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A double UV curing peelable coating, calculated in parts by weight, its raw material composition and content are as follows:

[0039]

[0040]

[0041] Wherein, the UV curable resin is epoxy acrylate;

[0042] The photoinitiator is a mixture of BASF Irgacure184D and IrgacureTPO in a mass ratio of 1:1;

[0043] The thermal initiator is azobisisobutyronitrile;

[0044] The leveling agent is a mixture of German BYK-345 and BYK-346 in a mass ratio of 1:1;

[0045] Described wetting agent is the NP-100 of U.S. Dow Company;

[0046] Described defoamer is the NopcoNXZ of German Henkel Company;

[0047] The functional filler is mica;

[0048] The above-mentioned preparation method of a kind of double UV curing peelable coating specifically comprises the following steps: according to the formula, add 0.5 part of wetting agent, 0.1 part of Defoamer, 10 parts of functional filler, after dispersing at 1600r / min for 30min, reduce the speed to 300r / min, add 60 parts of UV ...

Embodiment 2

[0053] A double UV curing peelable coating, calculated in parts by weight, its raw material composition and content are as follows:

[0054]

[0055] Wherein, the mixture of the UV curable resin epoxy acrylate and polyurethane acrylate in a mass ratio of 1:1;

[0056] The photoinitiator is one or more mixtures of BASF Irgacure1173 and Irgacure184D in a mass ratio of 1:1;

[0057] Described thermal initiator is dibenzoyl peroxide;

[0058] The leveling agent is Germany BYK BYK-341;

[0059] Described wetting agent is the NP-100 of U.S. Dow Company;

[0060] Described defoamer is the NopcoNXZ of German Henkel Company;

[0061] The functional filler is mica.

[0062] The above-mentioned preparation method of a kind of double UV curing peelable coating specifically comprises the following steps: according to the formula, add 5 parts of wetting agent, 0.5 part of Defoamer, 20 parts of functional filler, after dispersing at 2800r / min for 50min, reduce the speed to 300r / min, ...

Embodiment 3

[0067] A double UV curing peelable coating, calculated in parts by weight, its raw material composition and content are as follows:

[0068]

[0069]

[0070] The preparation method of the double UV curing peelable coating specifically includes the following steps: according to the formula, add 3 parts of wetting agent and 0.3 part of defoamer to the GFJ-0.4 high-speed disperser (Shanghai Xinnuo Instrument Equipment Co., Ltd.) 16 parts of functional fillers, after dispersing at 2000r / min for 40min, reduce the speed to 300r / min, add 80 parts of UV curable resin and the remaining 0.3 parts of defoamer, 3 parts of wetting agent and 0.08 parts of leveling Agent, 5 parts of photoinitiator, 5 parts of thermal initiator, and stir evenly, continue to disperse for 7 minutes, after mixing evenly, filter through GS450 small vibrating sieve (Laizhou Jingtai Chemical Machinery Factory) to remove the filter residue, and obtain double UV curing strippability coating.

[0071] In summa...

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Abstract

The present invention belongs to the technical field of polymer materials, and in particular to a dual UV curable peelable coating. The coating comprises the following raw materials by weight: 60-100 parts of a UV-curable resin, 0.05-0.1 part of a leveling agent, 1-10 parts of a wetting agent, 0.2-1 part of a defoamer, 3-6 parts of a photoinitiator, 3-6 parts of a thermal initiator, and 10-20 parts of a functional filler. The preparation method comprises the following steps: according to the formula, adding part of the wetting agent, defoamer and functional filler in a high speed disperser, dispersing by 1600-2800 r / min for 30-50min, reducing the rotational speed to 300r / min, adding the UV curable resin and the remaining defoamer, wetting agent, leveling agents, photoinitiator and thermal initiator, stirring well, continuing the dispersion for 5-10min, mixing evenly, and removing the residue by filtration to obtain the coating. the dual UV curable peelable coating obtained by the present invention has short dry time and good rust resistance of cured material; and the preparation method is simple for process, and easy to control, so the technology has the characteristics of maturation, fastness, and high efficiency.

Description

[technical field] [0001] The invention belongs to the technical field of macromolecular materials, in particular to a double UV curing peelable coating and a preparation method thereof. [Background technique] [0002] Peelable paint is a temporary protective material with polymer as the main film-forming substance. It is sprayed on the surface of the object when it is used, and it will protect the object for a short time after the film is formed; The film layer is gently peeled off from the surface of the object to be coated by hand, which will not only cause no damage to the surface of the object to be coated, but also make the appearance of the original device as clean as new. Strippable coatings are widely welcomed by industries such as instruments, meters, home appliances, machinery, automobiles, and electronic appliances due to their convenient coating and easy peeling, and are developing rapidly. [0003] In the dual curing system, the crosslinking or polymerization r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/14C09D7/12
CPCC09D163/10C08K3/34C08K13/02C09D7/61C09D7/63C09D175/14C08L75/14C08L63/10
Inventor 张英强梁华丽李烨
Owner SHANGHAI INST OF TECH
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