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Several suggestions for the selection of titanium ester coupling agents

time:2020-10-29
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Suggestions for the selection of titanium ester coupling agents:

 

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


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.

钛酸酯偶联剂选用的几点建议


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


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


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


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.

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