Film-forming aid and preparation method thereof
A film-forming aid and catalyst technology, applied in the direction of ether preparation, alkylene oxide preparation ether, chemical instruments and methods, etc., can solve the problems of safety and environmental protection limitations, performance impact, high volatility, etc., and achieve broad market prospects, VOC Effect of low emission and excellent film formation
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Example Embodiment
[0060] A second aspect of the present invention provides a method for preparing the above-mentioned film-forming aid, comprising the following steps:
[0061] (1) will React with catalyst I at 60-200°C for 1-4h;
[0062] (2) Add catalyst II and react at 60-200° C. for 3-7 hours to obtain the film-forming aid.
[0063] In one embodiment, the preparation method of the film-forming aid comprises the following steps:
[0064] (1) will React with catalyst I at 90°C for 4h;
[0065] (2) Add catalyst II and react at 120° C. for 4 hours to obtain the film-forming aid.
[0066] The present invention adopts As a reactant, and using boron trifluoride, sodium alkoxide or a mixture of hydroxide and quaternary ammonium salt as catalyst, the film-forming aid prepared by step-by-step catalytic reaction has good compatibility with any polymer emulsion, Does not cause demulsification during production, especially when R 3 When it is methyl or ethyl, and R4 is n-propyl and n-butyl, it ...
Example Embodiment
[0075] Example 1
[0076] Embodiment 1 provides a kind of film-forming aid M 1 , the film-forming aid M 1 The structural expression is: where the R 11 means -CH 2 -,R 21 means -CH 2 CH 2 CH 3 ;
[0077] The film-forming aid M 1 The reaction raw materials are: (A 1 , where the R 31 means -CH 2 -), (B 1 , where the R 41 means -CH 2 CH 2 CH 3 ), boron trifluoride, catalyst II; the A 1 , B 1 The molar ratio is 1:1; the quality of the boron trifluoride is A 1 , B 1 0.1wt% of the total mass; the catalyst II is a mixture of sodium methoxide and tetrapropylammonium bromide; the mass ratio of the sodium methoxide and tetrapropylammonium bromide is 1:1; the mass of the sodium methoxide is A 1 , B 1 0.6wt% of the total mass.
[0078] The preparation method of the film-forming aid comprises the following steps:
[0079] (1) Put A 1 , B 1 React with boron trifluoride at 90℃ for 4h;
[0080] (2) Add catalyst II and react at 120°C for 4 hours to obtain the f...
Example Embodiment
[0081] Example 2
[0082] Embodiment 2 provides a kind of film-forming aid M 2, the film-forming aid M 2 The structural expression is: where the R 12 means -CH 2 CH 2 -,R 22 means -CH 2 CH 2 CH 2 CH 3 ;
[0083] The film-forming aid M 2 The reaction raw materials are: (A 2 , where the R 32 means -CH 2 CH 2 -), (B 2 , where the R 42 means -CH 2 CH 2 CH 2 CH 3 ), boron trifluoride, catalyst II; the A 2 , B 2 The molar ratio is 1:1; the quality of the boron trifluoride is A 2 , B 2 0.1wt% of the total mass; the catalyst II is a mixture of sodium ethoxide and tetrabutylammonium bromide; the mass ratio of the sodium ethoxide and tetrabutylammonium bromide is 1:1; the mass of the sodium ethoxide is A 2 , B 2 0.6wt% of the total mass.
[0084] The preparation method of the film-forming aid comprises the following steps:
[0085] (1) Put A 2 , B 2 React with boron trifluoride at 90℃ for 4h;
[0086] (2) Add catalyst II and react at 120°C for 4 ho...
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