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In depth analysis of technical knowledge
Time: 2025-02-05 13:40:04
Author: 赛菲(天津)新材料科技有限责任公司
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【The stability principle of polymers on solid particles】

Powder particles will automatically adsorb high molecular weight polymers from water, forming a complex dense layer structure that changes the original charge density of the dense layer, increasing attraction and repulsion;

The high polymer barrier between pigment particles is called steric hindrance EsR
【DLVO Theory】-potential energy curve

Total interaction potential energy(ET)
ET = EA + ER

Total interaction potential energy (ET)
ET = EA + ER + EsR
To obtain a stable dispersed system, it is necessary to modify the compact layer by changing the charge capacity or structure, which can be achieved using dispersants.
→If EsR is negative, it will accelerate flocculation,
The added polymer becomes a flocculant,
→If EsR is positive, it is an effective dispersant,
Enhance dispersion stability.
Various powder dispersion solutions


【Packaging And Storage】
10L/25L/50L/220L barrels of this product should be stored in a dry, cool, ventilated, sealed room temperature, away from sources of fire.
What characteristics should dispersants possess
In order to meet the needs of industrial production, dispersants should have the following characteristics:
1. Good dispersibility: Dispersants should be able to effectively disperse pigments and fillers evenly in the medium, preventing particle aggregation.
2. Appropriate compatibility: Dispersants should have good compatibility to ensure that they can fully function in the system.
3. Good thermal stability: Dispersants should have good thermal stability to ensure that they do not decompose or deteriorate during the molding process.
4. Not causing color drift: Dispersants should not cause unnecessary color changes or drift to maintain the stability of product color.
5. Does not affect the performance of the product: The dispersant should not have a negative impact on the performance of the final product to ensure that the quality and performance of the product meet the requirements.
6. Non toxic: Dispersants should be non-toxic or low toxic to ensure their safety and harmlessness to personnel and the environment during production and application.