Completely-degradable composite material with high toughness
A composite material, completely degradable technology, applied in the field of PBS/PBAT/starch degradable composite materials, can solve the problem of fast degradation rate, and achieve the effect of increasing melt flow index, high toughness, and easier processing and molding
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[0017] The present invention will be further explained by specific examples below, but the examples are only used to explain the present invention, and do not limit the present invention.
[0018] The embodiment of the present invention adopts the following preparation method:
[0019] According to parts by weight, first blend the PBS / PBAT substrate in a Hacker mixer for 5 minutes at a temperature of 135°C, then blend the starch, plasticizer and water to gelatinize the starch. The starch was added to the internal mixer and blended for another 5 minutes, and the temperature was set to 135°C. The blended material was hot pressed in a vulcanizer at 150°C for 5 minutes, and then cold pressed at room temperature for 5 minutes to obtain a blended composite material.
[0020] The composite material obtained in the present invention adopts the following methods or standards for performance testing, all samples need to be stored at a temperature of 23°C±2°C and a humidity of 50%±5% for n...
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