摘要：The amount of titanium ester coupling agent added usually needs to be between 0.5% and 2% of the filler mass, and its precise valu

Why is the scientific determination of the dosage of Titanium ester coupling agent the key to improving the performance of composite materials?

The amount of titanium ester coupling agent added usually needs to be between 0.5% and 2% of the filler mass, and its precise value should be determined through systematic experiments. During the experiment, it is recommended to select three typical concentrations of 0.5%, 1%, and 2% for testing, and draw curves based on the results to determine the optimal ratio. When the amount of filler added is less than 20 parts, the amount of coupling agent should be controlled below 0.5%; If the amount of filler added is 30 to 50 parts, it is recommended to adjust the amount of coupling agent to 0.5% to 1.0%; When the amount of filler added exceeds 50 parts, the proportion of coupling agent needs to be correspondingly increased to 1.0% or more.

Titanium ester coupling agent, as an important surface modifier for PVC and CaCO3 filler plastics, can significantly improve the compatibility between fillers and resins, thereby enhancing material mechanical properties and reducing production costs. At present, there are many types of coupling agents on the market, but most products only indicate the model without a clear chemical structure, and overly emphasize a single advantage. Users need to screen suitable coupling agent varieties and dosages through experiments based on specific resin and filler systems in order to achieve the best modification effect.

In addition, the application process of coupling agents has a direct impact on their effectiveness, and it is necessary to strictly follow the mixing precautions and operating steps to ensure that the treatment effect meets the expected standards.

来源：躺平闲聊天