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工商注册信息已核实!领域: | 涂料 | ||
样品: | 油漆、涂料 | 项目: | 流变性、粘度、耐冲击性、触变性、屈服应力 |
参考: | 加工性能 |
方案文件名 | 下载 |
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流变仪在涂料和油漆中的应用 |
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Waterborne coatings do not have a priori, the same advantageous rheological properties as solvent-based coatings. If not formulated correctly, they are much inferior with regard to flow properties, leveling, application properties, film build, etc.. In order to obtain the desired performance, thickeners and rheological modifiers are added to improve waterborne paints. Conventional thickeners like cellulosics, high molecular weight polymers or inorganic clays increase the viscosity during application, but they provide poor spatter resistance and leveling to the paint. Associative thickeners are low molecular weight, water soluble polymers like modified alkali swellable emulsions, and provide overall good performance to a waterborne coating.