Biodegradable polyester composite catalyst, as well as preparation method and using method thereof
A biodegradable polyester and composite catalyst technology, applied in the field of preparing biodegradable polyester catalysts, can solve the problems of complex preparation process, difficult industrial production, high preparation cost, etc., and achieve simple preparation process, shortened reaction time, and low preparation cost Effect
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Embodiment 1
[0019] Embodiment 1, the biodegradable polyester composite catalyst contains: 50 to 98 parts of organic titanium compounds, 1 to 30 parts of organosilicon compounds, 0 to 10 parts of cocatalysts, and press Obtained by the method: first stir and mix the required amount of organotitanium compound and the required amount of organosilicon compound, and then continue to mix the required amount of co-catalyst with the required amount of organotitanium compound and the required amount of organosilicon compound Stir and mix evenly to obtain a biodegradable polyester composite catalyst.
Embodiment 2
[0020] Embodiment 2, the biodegradable polyester composite catalyst contains: 50 parts or 98 parts of organotitanium compound, 1 part or 30 parts of organosilicon compound, 0 part or 10 parts of cocatalyst, and Stir and mix the required amount of organotitanium compound and the required amount of organosilicon compound uniformly, and then continue to stir and mix the required amount of co-catalyst with the required amount of organotitanium compound and the required amount of organosilicon compound to obtain the biodegradable polymer Ester composite catalyst.
Embodiment 3
[0021] Embodiment 3, as a preference of the above embodiment, the cocatalyst is a metal salt compound or a multifunctional organic compound. The choice of metal salt compound or multifunctional organic compound can shorten the reaction time.
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