| abstract |
The invention relates to a fully biodegradable paper-plastic composite material and a preparation method thereof, belonging to the field of packaging materials. The composition raw materials of the degradable paper-plastic composite material include 80-90 parts of degradable polymer, 20-40 parts of nano calcium carbonate, 10-20 parts of modified starch, 10-20 parts of tetrahydrofuran, 15-20 parts of sorbitol, 2-3 parts of stabilizer and 0.2-1 part of plasticizer. The composite material of the invention has excellent mechanical and mechanical properties and water and moisture resistance, and can be completely degraded, non-toxic and harmless after being used and discarded. The preparation method of the invention is simple in process, low in cost and convenient for large-scale production. |