In the production process of polyvinyl alcohol, foam problems often become an invisible obstacle constraining efficiency and quality. From the polymerization reaction to the subsequent washing and concentration processes, the stubborn foam generated within the system not only reduces the effective volume of the reactor and prolongs the production cycle, but may also cause overflow, resulting in waste of raw materials, and even affect the final appearance and performance uniformity of the product. How to control foam efficiently and durably is a common challenge faced by many production managers.
The Chemi Tech technical team conducted an in-depth analysis of the characteristics of the polyvinyl alcohol production system, recognizing that the stability of its foam originates from the high viscosity and surface-active substances of the system itself. Traditional defoamers often suffer from disadvantages such as short foam-suppression time, easy stratification, or affecting product transparency. To this end, we specifically developed the Chemi Tech PVA series of defoamers. This series of products adopts special modified polyether and silicone composite technology, features excellent compatibility and durable foam-suppression capability, and can quickly penetrate and destroy the foam film, while maintaining stable performance under high-viscosity and high-temperature environments, without leaving residue in the system or causing product defects.
Our solution is divided into three clear steps. The first step is problem diagnosis and sample matching: our engineers will learn in detail about your specific process stage, temperature, pH value and foaming characteristics, and recommend the most suitable defoamer model. The second step is on-site testing and evaluation: providing small samples for on-site trials to precisely verify their immediate defoaming and long-term foam-suppression effects, and to observe the impact on key indicators such as system transparency and viscosity. The third step is determining a customized dosing plan: based on the test results, determining the optimal addition point, dosage and addition method for you (such as adding as the original liquid or after dilution), to ensure maximum effect and optimized cost.
For example, a customer in East China specializing in the production of high-viscosity polyvinyl alcohol had long been troubled by foam overflowing the tank in its concentration section, and frequent cleaning led to loss of production capacity. After adopting our Chemi Tech PVA-302, at the recommended dosage, the foam was immediately controlled, the entire concentration process was smooth, and no more overflow occurred. More critically, the defoamer dispersed well in the system, no oil spots or flocculants were found, and the clarity of the final product fully met the standard. The customer thereby achieved continuous and stable operation of this section, and production efficiency increased by about 15%.
By choosing Chemi Tech, you obtain not only a highly efficient defoamer, but also a targeted foam management solution. We are committed to using professional products and technical services to help you clear the foam obstacles in polyvinyl alcohol production, achieving cost reduction, efficiency improvement and quality enhancement.