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关于丙烯颜料干燥问题的技术

2012-03-07 14:18阅读：

http://blog.sina.cn/dpool/blog/u/2728614852

关于丙烯颜料干燥问题的技术
虽然丙烯颜料有快干的倾向，但是有几个技巧和添加物能延长湿润时间。我们一起探讨如何固化丙烯颜料，如何按艺术家的需要控制和操纵这个过程。水是通过毛细管作用被排出丙烯，在当基本由水组成的载体离开薄膜后干燥。当水蒸发或被底材吸收之后，微小的丙烯聚合物颗粒被追形成越来越紧密地接触。它们最终变得如此拥挤，使相互之间的空隙形成了毛细血管力量，将水从颜料膜中排出。这种毛细血管作用把丙烯颗粒以蜂窝状的形式一个紧靠着另一个包在一起，它们开始形成一个连续的、内聚的薄膜。当这种状况出现时，由丙烯长链构成的聚合物颗粒实际上在一个被称为“聚结”的成膜过程中变形，同时相互间形成部分的合并。
丙烯颜料的干燥要经历两个非常不同的阶段，因此干燥时间必须在两个不同的时间段中被考虑。第一阶段，相对短暂的时间，其结果是在丙烯颜料表面形成一层皮。这是使丙烯达到干燥到能够触碰的时间。此时，流向表面的水量不再足以保持颜料膜的湿润。非常薄的膜能在几秒钟之内感觉干燥，而厚的膜则要花一整天或更多时间结皮。
干燥的第二阶段是整个厚度的膜达到完全干燥的时间。这就是所有的水和溶剂蒸发和离开薄膜所需要的时间。这是一个最为至关重要的时间段，因为诸如粘合力、硬度和透明度等最终的物理特征在薄膜近乎彻底干燥时才会完全形成。






On acrylic paint drying technology
Although propylene pigment quick-drying tendency, but there are several techniques and additives can prolong the time of wetness. We discuss how to curing acrylic paint, how the artist needs to control and manipulate the process. The water is discharged through capillary action of propylene, when the basic composed of water carrier from film after drying. When water evaporates or substrate absorption, tiny propylene polymer particles were formed more closely contact. They eventually became so crowded, so that a gap between the capillary force is formed, the water from the paint film is discharged. The capillary effect of propylene particles to form a honeycomb against another package together, they begin to form a continuous, cohesive film. When this situation occurs, the long chain consisting of propylene polymer particles in a known as' coalescence' in the film formation process of deformation, at the same time with each other to form part of the consolidation.
Acrylic paint drying through two very different stages, thus drying time in two different time periods are considered. The first stage, a relatively short time, the result is in acrylic paint surface to form a layer of skin. This is to make propylene to dry to touch time. At this time, to the surface water is no longer sufficient to keep the wet paint film. A very thin film in a few seconds feel dry, thick film is to spend a day or more time crust.
Drying is the second phase throughout the thickness of the film to completely dry time. This is all the water and solvent evaporation and leaves the film needed time. This is a most critical period of time, because such as adhesion, hardness and transparency in the final physical characteristics of film almost completely dry only when it is completely formed.

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