Compound functional agricultural machinery finishing powder coating and production process thereof
A powder coating and functional technology, applied in powder coatings, bulk chemical production, polyester coatings, etc., can solve the problems of cumbersome production process, not very easy, and many devices, so as to reduce production costs, reduce electric energy, The effect of lowering the baking temperature
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[0040] Example 1
[0041] Preparation of polyester / acrylic resin composite 1: The polyester resin and acrylic resin are mixed at 7:3 by weight, and reacted in a high-temperature reactor at 150° C. for 1 hour.
[0042] Preparation of epoxy modified acrylic resin: methyl methacrylate, acrylic acid, octyl acrylate, styrene, hydroxypropyl acrylate, trimethylolpropane triacrylate as monomers, benzoyl peroxide as initiator, E-44 epoxy resin is a modifier, polymerized.
[0043] Preparation of nano composite cross-linking agent: 4,5-imidazole dicarboxylic acid and benzimidazole-5,6-dicarboxylic acid as sensitizing organic ligands, grafted to mesoporous SiO through covalent bonds 2 On the nano particles, a nano composite crosslinking agent is prepared.
[0044] The glass powder used is VX-SP imported from Japan.
[0045] The polyester resin adopts 9855 polyester resin supplied by Baotian New Materials.
[0046] The raw material components of the powder coating are shown in Table 1, and they are ...
Example Embodiment
[0049] Example 2
[0050] This embodiment is basically the same as embodiment 1, the difference lies in:
[0051] When preparing polyester / acrylic resin composite 2, react for 1.5 hours.
[0052] The method of CN103467714A was used to prepare high hydroxyl polyester resin.
[0053] The crosslinking agent is trimethylolpropane.
[0054] The nanometer glass powder is Jingshan nanometer glass powder JLH-T90 produced and sold by Shenzhen Jinlonghui Industrial Co., Ltd.
[0055] In addition, the additives are different, see Table 1 for details.
Example Embodiment
[0056] Example 3
[0057] This embodiment is basically the same as embodiment 1, the difference is that the additives are different, the temperature of the supercritical fluid kettle is set to 120°C, the temperature is kept constant for 5 minutes after heating to the set temperature, and the rotation speed of the shearing element is 150 rpm , The shear mixing time is 10 minutes.
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