High attachment, water boiled resistant, alcohol resistant acrylic resin for glass paint

Glass paint is a coating for the surface decoration of glass and glass products. Because its application is very diversified, the resin used in glass paint on the market is also mixed, but the total requirements for resin are:

① Good water resistance;

② Good acid resistance and alkali resistance;

③ Vigorous compatibility and high storage performance;

④ A good attachment to the glass surface;

⑤ Beauty is good for alcohol.

Acrylic resin is more and more popular with its excellent comprehensive performance. However, the diversified application of glass paint often requires two or more resin to use to meet the performance needs. Therefore Essence In addition, because the surface of the glass is — Si — O -Fracture surface, and the surface is smooth, to achieve excellent adhesion and glass adhesion, it should be prepared to form a resin that can form a chemical bond with the — O -O -key that can form a chemical bond with the glass surface. Therefore, hydroxyl acrylic resin should be an ideal choice, but the hydroxymal value should be moderate because although high hydroxymal value is conducive to improving adhesion, on the one hand, its polarity is also large, which is not conducive to the highly etherized amino resin and alcoholic acid resin on the one hand. , TDI bonus material curing agent is mixed, which limits its application scope. On the other hand, high hydroxyl resin has a large production cost, and the amount of curing agent should be increased, which is not conducive to the reduction of cost; while the hydroxymal value is too low, then the value of hydroxygen is too low. It is not conducive to adhesion and the hardness is generally large.

The adoption of polyester modified hydroxyl acrylic resin can not only increase its mixed solubility with other resins, expand its application range, and ensure the flexibility of the resin. Based on this idea, this article uses a hydroxyl acrylic resin in the polyester modifiers to prepare an acrylic resin for glass paint. Compared with the unconnected hydroxyl glass paint, the paint film test results show that it attached it The comprehensive performance of efforts, water -resistant boiled, and ethanol resistance has been greatly improved.