A kind of fluidity powder hot-melt adhesive and preparation method thereof
A fluidity, hot-melt adhesive technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of high sealing and storage requirements, long product turnover cycle, long product inventory time, etc., to achieve Wide application, improve storage stability and use effect, increase fluidity effect
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Embodiment 1
[0020] Proportion powder resin and leveling agent according to Table 1, taking powder resin with a particle size of less than 80 μm as an example. Weigh 248.75kg of EVA powder resin and 1.25kg of leveling agent, 250kg in total. First add the powdered resin to the conical agitator, turn on the agitator, and control the leveling agent within 15 minutes. After continuing to mix for 15 minutes, stop stirring, and discharge the bag and seal it. The loose bulk density before and after adding the leveling agent is: 0.58g / cm 3 , 0.36 g / cm 3 .
Embodiment 2
[0022] According to the ratio of powder resin and leveling agent in Table 1, take powder resin with a particle size of 80-200 μm as an example. Weigh 249.25kg of COPA powder resin and 0.75kg of leveling agent, 250kg in total. First add the powdered resin to the conical agitator, turn on the agitator, and control the leveling agent within 15 minutes. After continuing to mix for 15 minutes, stop stirring, and discharge the bag and seal it. The loose bulk density before and after adding the leveling agent is: 0.79g / cm 3 , 0.53 g / cm 3 .
Embodiment 3
[0024] Proportion powder resin and leveling agent according to Table 1, taking powder resin with a particle size of 200-500 μm as an example. Weigh 249.25kg of TPU powder resin and 0.75kg of leveling agent, 250kg in total. First add the powdered resin to the conical agitator, turn on the agitator, and control the leveling agent within 15 minutes. After continuing to mix for 15 minutes, stop stirring, and discharge the bag and seal it. The loose bulk density before and after adding the leveling agent is: 0.68g / cm 3 , 0.45g / cm 3 .
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