Interface adhesion improver, and preparation method and application thereof
An adhesion promoter and interface technology, applied in coatings, polyurea/polyurethane coatings, etc., to achieve the effects of simple preparation method, convenient raw materials and excellent adhesion
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Embodiment 1
[0029] The preparation method of the interfacial adhesion promoter of the present embodiment comprises the following specific steps:
[0030] Step 1: Add A81 aldehyde resin into a three-neck flask equipped with a condenser and stirring.
[0031] Step 2: Add TDI trimer, raise the temperature to 80° C., and react for 2 hours. Adding an appropriate amount of catalyst dibutyltin dilaurate while adding the TDI trimer can effectively shorten the reaction time.
[0032] Step 3, adding isopropyl titanate to continue the reaction for 2 h.
[0033] In step 4, the temperature is lowered to below 60°C and the material is discharged to obtain an interface adhesion promoter. The mass ratio of isopropyl titanate, TDI trimer and A81 aldehyde resin added in the above steps is 4:2:1. The interfacial adhesion promoter prepared by adding metal organic matter, polyisocyanate and hydroxyl-containing oligomer at this mass ratio is the most stable.
[0034] 20 parts by weight of carbon black slur...
Embodiment 2
[0037] The preparation method of the interfacial adhesion promoter of the present embodiment comprises the following specific steps:
[0038] Step 1, adding solid hydroxy acrylic resin into a three-neck flask equipped with a condenser and stirring.
[0039]Step 2: Add TDI-TMP adduct, raise the temperature to 80° C., and react for 2 hours.
[0040] Step 3, adding aluminum isopropoxide to continue the reaction for 2 h.
[0041] In step 4, the temperature is lowered to below 60°C and the material is discharged to obtain an interface adhesion promoter. The mass ratio of aluminum isopropoxide, TDI-TMP adduct and solid hydroxyl acrylic resin added in the above steps is 4:2:1.
[0042] With the titanium white slurry of 35 parts by weight, the barium sulfate of 5 parts by weight, the anionic water-based acrylic acid modified polyurethane resin containing carboxyl group of 100 parts by weight, the auxiliary agent of 8 parts by weight, the interfacial adhesion promoter of 3 parts by w...
Embodiment 3
[0045] The preparation method of the interfacial adhesion promoter of the present embodiment comprises the following specific steps:
[0046] Step 1, epoxy resin is added in the there-necked flask with condenser and stirring.
[0047] Step 2: Add biuret N75, heat up to 80°C, and react for 2 hours.
[0048] Step 3, adding zirconate to continue the reaction for 2h.
[0049] In step 4, the temperature is lowered to below 60°C and the material is discharged to obtain an interface adhesion promoter. The mass ratio of zirconate, biuret N75 and epoxy resin added in the above steps is 4:2:1.
[0050] With 33 parts by weight of phthalocyanine blue paste, 100 parts by weight of carboxyl-containing anionic water-based fluorine-modified polyurethane resin, 10 parts by weight of auxiliary agent, 3 parts by weight of interface adhesion promoter and 20 parts by weight of deionized water Put it into a stainless steel cylinder for stirring and dispersing, set the speed at 700rad / min, and st...
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