Polymer environment-friendly degradable material and preparation method thereof
A technology of degradable materials and polymers, which is applied in the field of polymer environmental degradation materials and their preparation, can solve the problems of environmental adverse effects, incomplete degradation, etc., achieve environmental friendliness, increase surface area and porosity, and reduce costs
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Embodiment 1
[0027] A polymer environment-friendly degradable material, its raw material composition and mass percentage are:
[0028] Corn Starch 60%
[0029] Bagasse 35%
[0030] Titanate coupling agent 5%.
[0031] The preparation method of the above-mentioned polymer environment-friendly degradable material comprises the following steps:
[0032] (1) Bagasse pretreatment: crush the bagasse into a powder of 10-25 μm, and then carry out steam explosion treatment, the pressure is 2.0MPa, and the time is 10min;
[0033] (2) The starch is pre-dried, and then mixed with a titanic acid coupling agent into a high-speed mixer at a temperature of 80°C;
[0034] (3) Add the bagasse powder obtained in step (1) to the high-speed mixer of step (2) and mix at a temperature of 85°C;
[0035] (4) Pour the material obtained in step (3) into the twin-screw extruder, control the temperature range of the heating zone of the twin-screw extruder to be 130°C-200°C, the speed of the main engine is 16r / min,...
Embodiment 2
[0038] A polymer environment-friendly degradable material, its raw material composition and mass percentage are:
[0039] Potato starch 50%
[0040] Bagasse 45%
[0041] Titanate coupling agent 5%.
[0042] The preparation method of the above-mentioned polymer environment-friendly degradable material comprises the following steps:
[0043] (1) Bagasse pretreatment: crush the bagasse into powder of 10-25 μm, and then carry out steam explosion treatment, the pressure is 1.5MPa, and the time is 8min;
[0044] (2) The starch is pre-dried, and then mixed with a titanic acid coupling agent into a high-speed mixer at a temperature of 85°C;
[0045] (3) adding the bagasse powder obtained in step (1) to the high-speed mixer of step (2) and mixing, the temperature is: 80°C;
[0046] (4) Pour the material obtained in step (3) into the twin-screw extruder, control the temperature range of the heating zone of the twin-screw extruder to be 130°C-200°C, the speed of the main engine is 14...
Embodiment 3
[0049] A polymer environment-friendly degradable material, its raw material composition and mass percentage are:
[0050] Potato Starch 70%
[0051] Bagasse 25%
[0052] Titanate coupling agent 5%.
[0053] The preparation method of the above-mentioned polymer environment-friendly degradable material comprises the following steps:
[0054] (1) Bagasse pretreatment: crush the bagasse into powders of 10-25 μm, and then carry out steam explosion treatment, the pressure is 2.2MPa, and the time is 5min;
[0055] (2) The starch is pre-dried, and then mixed with a titanic acid coupling agent into a high-speed mixer at a temperature of 75°C;
[0056] (3) Add the bagasse powder obtained in step (1) to the high-speed mixer of step (2) and mix at a temperature of 90°C;
[0057] (4) Pour the material obtained in step (3) into the twin-screw extruder, control the temperature range of the heating zone of the twin-screw extruder to be 130°C-200°C, the speed of the main engine is 18r / min,...
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