Antifouling and dustproof quick-drying cleaning agent composition
A cleaning agent and composition technology, which is applied in the field of quick-drying cleaning agent composition, can solve the problems of poor adhesion of polytetrafluoroethylene, low persistence of oil stain resistance, and high production cost, so as to reduce the use of chemical substances and prolong cleaning and maintenance Cycle and service life, easy to clean and labor-saving effect
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preparation example 1
[0038] The preparation method of modified polysiloxane 1 is as follows: 1mmol of hydrogen-containing silicone oil (hydrogen content is 0.18wt%) and 1mmol of polyethylene glycol monomethyl ether (the average number of EO is 5) are dissolved In 50ml of toluene, then add 0.1wt% zinc acetate of hydrogen-containing silicone oil as a catalyst, react under reflux for 8h, then distill off the solvent under reduced pressure, and pass the residue through a silica gel column (the mobile phase is petroleum ether: dichloro Methane=1:1, v / v), the product was collected to obtain modified polysiloxane 1, the yield=91.2%.
preparation example 2
[0040] The preparation method of modified polysiloxane 2 is as follows: 1mmol of hydrogen-containing silicone oil (hydrogen content is 0.18wt%) and 3mmol of polypropylene glycol monomethyl ether (the average number of PO is 3) are dissolved in 50ml In the DMF of DMF, then add the zinc acetate of the hydrogen-containing silicone oil of 0.3wt% as catalyzer, react 15h under reflux state, then decompression distillation removes solvent, the residue is crossed silica gel column (mobile phase is sherwood oil: dichloromethane= 1:1, v / v), the product was collected to obtain modified polysiloxane 2, yield = 92.6%.
preparation example 3
[0042] The preparation method of modified polysiloxane 3 is as follows: the hydrogen-containing silicone oil of 1mmol (hydrogen content is 0.18wt%) and the polyethylene glycol monomethyl ether of 1mmol (the average number of EO is 5), And 1mmol of polypropylene glycol monomethyl ether (the average number of PO is 3) is dissolved in 50ml of DMF, then add 0.2wt% zinc acetate of hydrogen-containing silicone oil as a catalyst, react under reflux for 10h, and then depressurize The solvent was distilled off, and the residue was passed through a silica gel column (mobile phase: petroleum ether: dichloromethane = 1:1, v / v) to collect the product to obtain modified polysiloxane 3 with a yield of 92.0%.
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