Foaming agent subjected to surface modification by fluorosilane and preparation method thereof
A technology of surface modification and foaming agent, which is applied in the field of foaming agent, can solve the problems of easy aggregation of foaming agent particles, failure to show effect, defective products and waste products, etc., to achieve uniform and fine cells, improved dispersion, and surface The effect that can be reduced
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[0030] Example 1
[0031] Put 20kg of azodicarbonamide ADCA foaming agent (average particle size 4-6um) in the high-speed mixer. After turning on the high-speed mixer, spray 0.1kg of fluorosilane liquid on the foaming agent in a mist manner, and at the same time The mixing was performed at 400 rpm for 10 minutes to obtain the blowing agent powder of the present invention.
Example Embodiment
[0032] Example 2
[0033] Put 20kg ADCA foaming agent (average particle size 4-6um) in the high-speed mixer. After turning on the high-speed mixer, spray 0.2kg fluorosilane solution (a solution composed of 0.1kg fluorosilane plus 0.1kg solvent ethanol) on the The foaming agent was mixed at 400 rpm for 10 minutes at the same time to obtain the foaming agent powder of the present invention.
Example Embodiment
[0034] Example 3
[0035] Put 20kg ADCA foaming agent (average particle size 4-6um) in the high-speed mixer, turn on the high-speed mixer, add 0.2kg of fluorosilane hydrolysate (add 0.1kg of fluorosilane to the pre-adjusted pH to 3-5 with acetic acid Mixed with 0.1kg of water) sprayed on the foaming agent in a mist, and mixed at a speed of 400 rpm for 10 minutes, and then baked at 80-105°C for 10-30 minutes to obtain the foaming agent of the present invention powder.
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