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I used to think the same way, but the actual measurement result is: in a certain fixed system, initially, as the amount of emulsifier increases, the viscosity of the system will increase; but when a certain peak is reached, the polymer system The viscosity will develop in the opposite direction. What's the reason? The polymerization method we are currently adopting-the dropwise addition of pre-emulsified monomers. In the initial stage, the amount of emulsifier used for seed polymerization is always limited. This is also a macro-physical phenomenon for the entire polymer of the emulsion. Key factors that have a crucial impact. The number of these emulsifiers determines the number of latex particles in the entire polymerization system, and this number changes little during the entire polymerization process. However, with the gradual addition of pre-emulsified monomers, the emulsifiers that are gradually added are not as mentioned in the classic theoretical textbooks, which will re-form new micelles and continuously increase the number of new latex particles. Instead, these emulsifiers will be transferred preferentially. To the surface of the latex particles that have been formed, increase the thickness and strength of the emulsifier film on the surface of the polymer. Why? Let's not talk about the polymer, just talk about the monomer. With the same amount of emulsifier, can we make a blue emulsion or more delicate emulsion like an emulsion? Our answer is: no! Why? Because it has not been polymerized, it will be a blue, stable emulsion after polymerization. However, I can do it under the premise of increasing the amount of emulsifier. I am specialized in the development of emulsifier application technology. Now, I can make mineral oil from kerosene to No. 76 base oil, vegetable oil from edible soybean oil to various high acid crude oils, and make them have the same appearance as polymer emulsions. And the water emulsion required by the storage stability period. However, to meet this standard, the actual use of emulsifiers is beyond your imagination. At least 20% of the emulsified products are used, and some varieties need to use more than 50%, so as to obtain blue-emitting emulsions. And this is considered to be a relatively high standard in China. The same reason, that is, the amount of my emulsifier-on the surface of the blue-emitting emulsion polymer particles, it can withstand the directional arrangement or coverage of the emulsifier which accounts for at least 15% of the monomer amount. There is no excess to form new micellar emulsifiers. In reality, we rarely use emulsifiers to this level. The key to the problem: the increase in the amount of emulsifier makes the emulsifier coverage on the surface of the polymer colloidal particles reach a higher or relatively saturated state, so that the protective effect of the electric double layer of the emulsifier will be more prominent. The inter-charge repulsion force is relatively increased, then the hysteresis and viscous force between the colloidal particles of the entire emulsion system will be reduced, and the fluidity will be greatly changed. This is also a manifestation of another effect of emulsifiers: increased dispersibility. That is to say, "The increase of emulsifier in the polyacrylate emulsion slurry will reduce the apparent viscosity of the slurry." The answer. Then, there is a new question here: why the amount of emulsifier is not enough to emulsify the monomers to form a blue monomer water emulsion, but it can form a stable polymer emulsion that is stable under certain tolerable conditions? This question is a new question. I haven't found an answer from the polymer theory that I have studied. I have been thinking about it for a long time. I want to try it separately as a topic. Exclusive opinion, welcome to Zhengzheng.