华樾AMP95与DMEA在水性工业漆的复配使用

1、华樾AMP95是一种独特化学结构的有机胺，它还有助分散的功能，与分散剂配伍使用，可有效降低体系粘度，提高研磨效率。因为多功能助剂1995中的亲水基团OH吸附在颜料表面时，使颜料表面形成NH3+电荷，这种颜料表面的电荷，使颜料具有静电稳定作用，尽管氨水也有同样功能，但因为氨水的易挥发，时间一长，反而使体系PH值不稳定，从而倒致整个体系的储存稳定性产生变化，且氨水挥发速度快，漆膜干燥快，易与催干剂生成黄色的络合物，使漆膜泛黄。

2、DMEA(二甲基乙醇胺)没有助分散功能，挥发速度合适，不像氨水那样因挥发太快使得涂料的涂刷性变差及涂膜产生针孔。且由于它的泛黄性及浓烈的气味，从而使被添加的产品也有浓烈的气味。

因二甲基乙醇胺DMEA多出了“甲基”，所以他的耐水性能增加了，中和值也比较大！所以很多工业漆厂喜欢用他！但是他的味道大，挥发性不够！影响了漆膜的干性！

３、所以好多工程师会用多功能助剂AMP95与来复配使用！这样又有很好的耐水性，又有很高的挥发性和中和率！同时还能降本增效！ 

AMP95 and DMEA in the formulation of water-based industrial coatings:

1. AMP95 is a unique organic amine with a chemical structure that also aids in dispersion. When used in combination with a dispersant, it effectively reduces system viscosity and enhances grinding efficiency. The hydrophilic groups (OH) in the multifunctional additive 1995 adsorb onto the pigment surface, creating NH3+ charges on the pigment surface. This surface charge imparts electrostatic stability to the pigment, similar to ammonia. However, ammonia tends to evaporate easily, leading to instability in the system's pH over time. This can adversely affect the storage stability of the entire system. Additionally, ammonia's rapid evaporation and quick drying of the paint film can lead to the formation of yellow complexes with drying agents, resulting in yellowing of the paint film.

2. DMEA (Dimethyl Ethanolamine) does not have a dispersing function, evaporates at an appropriate rate, and does not adversely affect the brushability of coatings or cause pinholes in the film, as ammonia sometimes does. However, DMEA is known for its yellowing tendencies and strong odor, which can impart a strong odor to the products it is added to. Due to the additional "methyl" group in DMEA compared to MEA (Monoethylamine), it exhibits improved water resistance and higher acid-base neutralization performance. Therefore, many industrial paint manufacturers prefer to use it. However, its strong odor and relatively slower volatility can affect the drying performance of the paint film."

3. Therefore, many engineers opt to combine the multifunctional additive AMP95 with DMEA. This combination offers good water resistance, high volatility, and a higher neutralization capacity, thereby improving both performance and cost-efficiency.