Hot melt adhesive primer and preparation method thereof
A technology of hot-melt adhesive and primer, applied in the direction of coating, etc., can solve the problems of complex production process, high production efficiency, high production cost, etc., and achieve simple production process steps, high wear resistance and hardness, and low production cost Effect
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Embodiment 1
[0022] Prepare the hot-melt adhesive primer according to the following steps, and the ingredients are by mass parts:
[0023] (1) Blending: Take 70 parts of polyester polyol, 10 parts of polyether polyol, 10 parts of polyether polyol, 0.3 part of antioxidant, 0.5 part of catalyst, 90 parts of basic resin and 50 parts of additives and mix well , and then vacuum dehydration at 110-140°C for 3 hours;
[0024] (2) Preparation: Lower the temperature of the mixture in step (1) to 50-70°C, then add 30 parts of isocyanate, 0.1 part of antioxidant and 0.1 part of catalyst to the above mixture, then raise the temperature to 100°C, and react for 40 After a few minutes, the material is discharged and put into a sealed container to obtain the finished product.
[0025] Lower the temperature by 50-70°C, add 30 parts of isocyanate, 0.1 part of antioxidant and 0.1 part of catalyst to the above mixture, react at 100°C for 40 minutes and discharge, then put it into a sealed container to obtain...
Embodiment 2
[0033] Prepare the hot-melt adhesive primer according to the following steps, and the ingredients are by mass parts:
[0034] (1) Blending: Take 80 parts of polyester polyol, 15 parts of polyether polyol, 30 parts of polyether polyol, 0.1 part of antioxidant, 0.5 part of catalyst, 50 parts of basic resin and 10 parts of additives and mix well , and then vacuum dehydration at 110-140°C for 3 hours;
[0035] (2) Preparation: Lower the temperature of the mixture in step (1) to 50-70°C, then add 30 parts of isocyanate, 0.1 part of antioxidant and 0.1 part of catalyst to the above mixture, then raise the temperature to 100°C, and react for 40 After a few minutes, the material is discharged and put into a sealed container to obtain the finished product.
[0036] Lower the temperature by 50-70°C, add 30 parts of isocyanate, 0.1 part of antioxidant and 0.1 part of catalyst to the above mixture, react at 100°C for 40 minutes and discharge, then put it into a sealed container to obtain...
Embodiment 3
[0044] Prepare the hot-melt adhesive primer according to the following steps, and the ingredients are by mass parts:
[0045] (1) Blending: Take 80 parts of polyester polyol, 20 parts of polyether polyol, 20 parts of polyether polyol, 0.2 part of antioxidant, 0.3 part of catalyst, 70 parts of basic resin and 35 parts of additives, and fully mix Uniform, then vacuum dehydrated at 110-140°C for 3 hours;
[0046] (2) Preparation: Lower the temperature of the mixture in step (1) to 50-70°C, then add 40 parts of isocyanate, 0.1 part of antioxidant and 0.1 part of catalyst to the above mixture, then raise the temperature to 100°C, and react for 40 After a few minutes, the material is discharged and put into a sealed container to obtain the finished product.
[0047] Lower the temperature by 50-70°C, add 30 parts of isocyanate, 0.1 part of antioxidant and 0.1 part of catalyst to the above mixture, react at 100°C for 40 minutes and discharge, then put it into a sealed container to ob...
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