Introduction to the selection of titanium ester coupling agents

How to choose a titanium ester coupling agent? Many people do not know how to correctly choose a titanium ester coupling agent. Usually, they follow the guidance of a salesperson or others to choose. Below, the editor of Jianjian Chemical will introduce several points to pay attention to when choosing a titanium ester coupling agent.

1. Monoalkoxytitanate coupling agents are most effective for inorganic fillers that have been dried and calcined.

2. Zinc oxide and stearic acid have a certain degree of surfactant activity, so they should be added after the fillers, polymers, and plasticizers treated with titanium acid esters are fully mixed.

3. Most titanium esters have ester transfer reaction activity, so they will react to varying degrees with ester or polyester plasticizers. Therefore, ester plasticizers are generally mixed after mixing.

4. Try not to add other surfactants as they can interfere with the reaction of titanium esters on the surface of the filler.

5. Titanate and silane have their own advantages in treating inorganic fillers, and sometimes their combined use can produce additive and synergistic effects.

6. Treating glass fibers impregnated with silane coupling agents with chelating titanium esters can produce a double-layer sheath effect.

7. The presence of humid air (0.1% -0.3%) can form excellent reaction sites without harmful effects. If the crystallization in Al2O3.3H2O is small, coupling agents are also useful reaction sites.