| abstract |
The invention utilizes the technical principle of similar compatibility, and by adding PP/PE compatibilizer and dispersant, so that PP can be well mixed with a large amount of PE and tightly combined. The invention provides a PP/PE alloy and a preparation method thereof. The PP/PE alloy comprises the following raw materials in parts by weight: 30-50 parts of polypropylene, 30-50 parts of high-density polyethylene, and 2 parts of linear low-density polyethylene. ‑20 parts, 2-8 parts of PP/PE compatibilizer, 0.2-0.6 part of dispersant, and 0.2-10 parts of auxiliary. The PP/PE alloy obtained by the invention has the advantages of higher hardness, tensile strength, impact strength, higher heat resistance, good forming processability, good surface quality and no whitening when folded in half. |