In the production of PVC artificial leather, wallpaper, toys, and other products, the preparation of paste resin white paste is a fundamental and critical step. The viscosity of the paste not only directly affects production efficiency and the processability of coating and spreading but also, more importantly, its storage stability is the core factor determining batch consistency and the final product's appearance quality. How to select a dispersant that can both efficiently reduce viscosity and ensure long-term paste stability is an ongoing challenge for many formulation engineers.
I. Common Challenges in PVC Paste Resin White Paste: High Viscosity and Storage Stability
PVC paste resin itself has relatively high viscosity. After adding a high proportion of pigments such as titanium dioxide, the system viscosity further increases, leading to higher dispersion energy consumption, reduced production efficiency, and potential issues like uneven coating and poor leveling. More critically, if dispersion stability is insufficient, the paste is prone to viscosity rebound, pigment re-coarsening, or even settling during storage, directly impacting production continuity and product quality stability.
II. The Solution: Practical Application of Anjeka Dispersant 6042A
Addressing these pain points, Anjeka's technical team conducted specialized tests. In a standard PVC paste resin white paste formulation (PVC paste resin 36, DOP 23.5, Titanium dioxide 40), 0.5% of Anjeka 6042A dispersant was added.
- Significant Viscosity Reduction Effect: Test data shows that after using 6042A, the initial viscosity of the white paste dropped to 6000 mPa.s. Compared to the blank group without dispersant (38000 mPa.s), the viscosity reduction effect is significant, effectively improving the fluidity and workability of the paste.
- Excellent Storage Stability: After storing the paste for 24 hours and retesting, its viscosity was only 7360 mPa.s, showing a gentle change. This indicates that 6042A can effectively anchor pigment particles, preventing their re-flocculation and aggregation, thereby ensuring the stability of the paste during the storage period and providing reliable material assurance for production.
III. Exceeding Expectations: Performance Advantages Verified by Comparison
To evaluate performance more objectively, comparative tests were conducted under the same conditions. The results show that the viscosity reduction and stabilization effects of Anjeka 6042A are superior to a specific common market competitor, performing better in both initial viscosity and viscosity after 24 hours of storage. This benefit stems from the good compatibility of the 6042A molecular structure with the PVC paste resin system and titanium dioxide particles, providing more durable and robust steric hindrance.
IV. Extended Application: Beyond PVC Paste ResinIt is worth mentioning that the excellent performance of Anjeka 6042A is not limited to PVC paste resin systems. It also demonstrates outstanding storage stability in resin-free color pastes using low-polarity solvents such as white oil and solvent naphtha, with minimal changes in viscosity and fineness before and after heat storage. This proves that 6042A is a highly efficient dispersant with broad applicability in low-polarity systems, also offering a reliable option for color paste preparation in related fields (such as certain inks, ceramic inks).
If you are seeking solutions for pigment dispersion, viscosity control, and storage stability issues in PVC paste resin or other low-polarity systems, Anjeka Dispersant 6042A deserves your attention. Apply for a free sample now and conduct application tests under the guidance of our professional technical personnel to personally experience the process improvements and quality enhancements it brings. You can also message us to obtain detailed technical data or schedule a technical exchange, allowing us to tailor a dispersion solution for you.
Your message must be between 20-3,000 characters!
