A kind of environment-friendly paint film based on metal chloride catalyzed cardanol and preparation method thereof
A kind of chloride, cardanol technology, applied in the field of coatings, to achieve the effect of good physical and mechanical properties, complete and smooth appearance
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[0013] The invention provides a method for preparing an environment-friendly paint film based on metal chloride catalyzed cardanol. Cardanol and metal chloride solution are mixed and stirred to obtain a mixture, and the mixture is coated on the surface of an object. Reaction at ℃ for 55-180 minutes, forming an environmentally friendly paint film on the surface of the object;
[0014] The mass ratio of the cardanol to the metal chloride solution is 10:1˜100:1.
[0015] It can be seen from the above description that the beneficial effect of the present invention is that the present invention introduces a small amount of metal chloride into cardanol, and the metal chloride has a certain catalytic effect on the polymerization of cardanol. Polymerization reaction, curing into a green and environmentally friendly paint film with good performance, the obtained paint film has good physical and mechanical properties and a complete and smooth appearance. According to the GB / T 1720-1979...
Embodiment 1
[0025] Weigh 1.00 g of copper chloride and 2.00 g of ethanol in a flask at a mass ratio of 1:2 and stir under natural conditions until completely dissolved to obtain a copper chloride solution. Properly placed, spare.
[0026] Weigh 25.00 g of cardanol monomer and 2.50 g of the above copper chloride solution in a flask at a mass ratio of 10:1 and stir until uniform at normal temperature and pressure. After coating, place in an oven at 150°C. It can be dried in 55 minutes, and the obtained paint film has good physical and mechanical properties and a complete and smooth appearance. According to the GB / T 1720-1979 (1989) paint film adhesion test method, the paint film adhesion level is grade 3; according to the GB / T 6739-1996 paint film hardness pencil test method, the paint film hardness is 6H.
Embodiment 2
[0028] Weigh 1.00 g of copper chloride and 2.00 g of ethanol in a flask at a mass ratio of 1:2 and stir under natural conditions until completely dissolved to obtain a copper chloride solution. Properly placed, spare.
[0029] Weigh 25.00 g of cardanol monomer and 2.50 g of the above copper chloride solution in a flask at a mass ratio of 10:1 and stir until uniform at normal temperature and pressure. After coating the film, place it in an oven at 120°C. It can be dried in 175 minutes, and the obtained paint film has good physical and mechanical properties and a complete and smooth appearance. According to the GB / T 1720-1979 (1989) paint film adhesion test method, the paint film adhesion level is grade 3; according to the GB / T 6739-1996 paint film hardness pencil test method, the paint film hardness is 5H.
[0030] Table 1 is the XPS test situation of the paint film of Example 2, wherein the content of copper element is only 0.15%, less than 1%. It can be seen that Cu is not...
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