Totally degradable foam buffer packaging material and its manufacturing method
A cushioning packaging and biodegradable technology, applied in the field of cushioning packaging materials, can solve the problems of limited application, inability to realize continuous industrialized large-scale production, and performance easily affected by the environment
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Embodiment 1
[0013] In terms of weight percentage, get 80 parts of cornstarch (150 mesh), 7.4 parts of ultrafine polyvinyl alcohol (viscosity 0.050Pa. 500mPa.s) placed in a high-speed material mixing machine for pre-mixing for 1 minute, then 7.4 parts of water were slowly and continuously added to the material system, and then the material was mixed for 15 minutes, aged in a sealed bag for 24 hours, and then directly added. The product was prepared in a 44:1 eight-stage heating self-cleaning twin-screw at a rotational speed of 300 rpm.
Embodiment 2
[0015] In terms of weight percentage, take 85.3 parts of cornstarch (200 mesh), 3.1 parts of ultrafine polyvinyl alcohol (viscosity 0.065Pa. 400mPa.s) by the processing method of embodiment 1, make corresponding product after adding 6.2 parts of water.
example 3
[0017] In terms of weight percentage, 86.6 parts of corn starch (300 mesh), 3.2 parts of ultrafine polyvinyl alcohol (viscosity 0.025Pa.s / 20°C), 1.1 parts of silicon dioxide, 1.2 parts of glass fiber, 3.2 parts of oligoamide ( Viscosity 150mPa.s) and 4.7 parts of water, after aging in a sealed bag for 24 hours, directly add to the eight-stage heating self-cleaning twin-screw with a length-to-length ratio of 44:1, and the product is prepared at a speed of 150rpm.
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