Master batch capable of fully and biologically degrading plastic film and preparation method thereof
A biodegradable plastic and masterbatch technology, applied in the field of polymer film, can solve the problems of difficult promotion and high production cost, and achieve the effect of eliminating white pollution, low unit cost and reducing content
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Embodiment 1
[0031] Example 1: (1) Mix 100 parts of starch, 150 parts of water, and 0.25 parts of anticaking agent, stir to form a slurry, and pour it into a SK80-2A sand mill disperser to refine it, and the refinement time is 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60°C; (2) The starch slurry that is initially refined is dehydrated by HDZC-006-1 ultrafiltration membrane unit; (3) The starch after the initial dehydration is mixed with glycerin Or 100 parts of corn oil are mixed and stirred to form a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min until the particle size of starch particles is less than 1μm, and the refinement temperature is controlled at 50-79°C; ( 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the water content of the starch is less than 0.5%; (5) Place the secondary deh...
Embodiment 2
[0032]Example 2: (1) Mix 100 parts of starch, 150 parts of water, and 0.5 parts of anti-caking agent, stir to form a slurry, and pour it into a SK80-2A sand mill disperser to refine it. The refinement time is 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60°C; (2) The starch slurry that is initially refined is dehydrated by HDZC-006-1 ultrafiltration membrane unit; (3) The starch after the initial dehydration is mixed with glycerin Or 100 parts of corn oil are mixed and stirred to form a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min until the particle size of starch particles is less than 1μm, and the refinement temperature is controlled at 50-79°C; ( 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the water content of the starch is less than 0.5%; (5) Place the secondary dehydrat...
Embodiment 3
[0033] Example 3: (1) Mix 100 parts of starch, 180 parts of water, and 1 part of anticaking agent, stir to form a slurry, and pour it into a SK80-2A sand mill disperser to refine it, and the refinement time is 20-30 minutes to starch granules The particle size is 1-10μm, and the refinement temperature is controlled at 40-60°C; (2) The starch slurry that is initially refined is dehydrated by HDZC-006-1 ultrafiltration membrane unit; (3) The starch after the initial dehydration is mixed with glycerin Or 100 parts of corn oil are mixed and stirred to form a slurry, and then poured into the aforementioned sand mill disperser for refinement, the refinement time is 40-50min until the particle size of starch particles is less than 1μm, and the refinement temperature is controlled at 50-79°C; ( 4) Dehydrate the secondary refined starch slurry through the aforementioned ultrafiltration membrane unit until the water content of the starch is less than 0.5%; (5) Place the secondary dehydra...
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