| abstract |
The invention discloses an environment-friendly polyethylene easily decomposable garbage bag and a preparation process. The formula comprises: high-density polyethylene, modified starch, biochar, lignocellulose aerogel, silane coupling agent and silanized bentonite; The preparation process includes step 1, preparation of modified starch; step 2, biochar treatment; step 3, preparation of silanized bentonite; step 4, mixing granulation; step 5, blow molding; the invention replaces natural starch with modified starch , not only improves its thermoplasticity, but also improves its rheological properties, facilitates the uniform dispersion of modified starch in high-density polyethylene, and improves the processing and molding properties; porous structure biochar, lignocellulose aerogel and starch are combined , providing breeding places and nutrients for microorganisms, thereby increasing the degradable performance of garbage bags in the soil environment; the raw materials used in the present invention have wide sources, low cost, and are easy to popularize and use. |