A kind of polyester elastic ultra-soft matte roller coating and its preparation method and application
A super-soft, matte and elastic technology, applied in polyester coatings, polyurea/polyurethane coatings, anti-corrosion coatings, etc., can solve problems such as easy back-sticking, easy paint-off, poor elasticity and durability, and achieve good stability, Good thermal insulation, super soft and delicate feel
Active Publication Date: 2021-08-06
广东歌丽斯化学有限公司
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Problems solved by technology
The traditional elastic paint is only used in the painting process, its elasticity is not durable, it is easy to stick back, and the paint is easy to fall off when heated
Method used
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Embodiment 1～3 and comparative example 1～8
[0039] The preparation method of described polyester elastic supersoft matte roller coating, comprises the steps:
[0040] 1. Put polymer polyester resin B and some high-boiling point (DBE) organic solvents into the dispersion tank in proportion to mix, control the speed at 1000 rpm, and disperse for 30 minutes to liquid state;
[0041] 2. Then add elastic resin, linear polymer polyester resin A, amino crosslinking agent, leveling agent, defoamer, elastic powder, matting powder, remaining organic environmental protection solvent and acid catalyst while dispersing in proportion, and fully disperse Afterwards, the polyester elastic supersoft matte roller coating is obtained.
[0042] The raw material table of table 1 embodiment 1~3 and comparative example 1~8
[0043]
[0044] The specific proportioning (parts by weight) of each component in each embodiment of table 2 and comparative examples
[0045]
[0046]
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Abstract
The invention belongs to the technical field of coatings, and discloses a polyester elastic supersoft matte roller coating as well as a preparation method and application thereof. The coating includes linear polymer polyester resin A, polymer polyester resin B, elastic resin, amino cross-linking agent and other components. Wherein, the linear polymer polyester resin A is a liquid saturated medium molecular weight linear hydroxyl polyester resin; the polymer polyester resin B is a saturated polyester resin. The glass transition temperature of the linear polymer polyester resin A is 5-15°C, the molecular weight is 5000-10000, the hydroxyl value is 40-60 mgKOH / g, and the acid value is 5-15 mgKOH / g; the glass transition temperature of the polymer polyester resin B is The temperature is 40~60℃, the molecular weight is 10000~30000, the hydroxyl value is 1~10mgKOH / g, and the acid value is 1~3mgKOH / g. The polyester elastic supersoft matte roller coating can be widely used in coating on building materials, general industry, home appliances, furniture, communication equipment and auto parts. It can be produced by continuous roller coating and has excellent stability. It is heat-resistant and does not stick back and does not fall off.
Description
technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a polyester elastic supersoft matte roller coating and a preparation method and application thereof. Background technique [0002] Metal coatings are an important branch of industrial coatings, which use their sealing effect on metal surfaces to prevent external water, air, solutions, etc. from corroding and oxidizing metal materials. Metal paint is widely used in the processing of various metal products, and plays a protective and decorative role on the metal itself. Traditional metal packaging coatings are mainly based on hard resins, and their main purpose is to have a greater protective effect on the metal surface. However, the above-mentioned hard resin coating has two significant technical drawbacks. First, the traditional metal packaging coating has high hardness and low flexibility, so it is very easy to crack and damage the coating during metal bending, st...
Claims
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IPC IPC(8): C09D167/00C09D175/04C09D7/63C09D5/08
CPCC08L2201/08C08L2205/025C08L2205/035C09D5/08C09D5/18C09D167/00C09D7/63C08L67/00C08L75/04C08K5/34922
Inventor 许启恩冼祖尧王诚宝刘新民
Owner 广东歌丽斯化学有限公司