Mildew-proof and fresh-keeping plastic packaging material

Abstract

The invention discloses a mildew-proof and fresh-keeping plastic packaging material. The mildew-proof and fresh-keeping plastic packaging material is prepared from polyvinyl resin, nano antibacterial particles and a processing auxiliary agent, wherein according to the mass percent, the polyvinyl resin accounts for 91 percent to 94 percent, the nano antibacterial particles account for 2 percent to 6 percent and the processing auxiliary agent accounts for 3 percent to 6 percent; the nano antibacterial particles are nano titanium dioxide particles; the processing auxiliary agent is prepared from the following components in parts by mass: 30 to 35 parts of a coupling agent, 20 to 25 parts of a plasticizer, 8 to 10 parts of an antistatic agent, 2 to 6 parts of a stabilizer and 31 to 33 parts of a filling agent. With the adoption of the manner, the nano antibacterial particles with the reasonable ratio are added, so that the mildew-proof and fresh-keeping plastic packaging material has good bacterium-inhibition and mildew-proof effects, and also has good strength and a long service life.

Description

technical field [0001] The invention relates to the field of plastic packaging materials, in particular to a mold-proof and fresh-keeping plastic packaging material. Background technique [0002] Plastic is widely used in daily life, various industries and high-tech fields because of its light weight, easy processing, beautiful and practical, and low price. [0003] The existing plastic packaging materials have a short service life. On the one hand, due to their poor strength and easy damage, on the other hand, after a long service life, bacteria often grow on the surface, and the barrier property is poor, so that the surface bacteria can penetrate into the packaged items inside, resulting in mildew and deterioration of the packaged items. Contents of the invention [0004] The technical problem mainly solved by the present invention is to provide a mildew-proof and fresh-keeping plastic packaging material, which is added with nano-antibacterial particles, has good antiba...

AI Technical Summary

Problems solved by technology

[0003] The existing plastic packaging materials have a short service life. On the one hand, due to their poor strength and easy damage, on the other hand, after a long service life, bacteria often grow on the surface, and the barrier property is poor, so that the bacteria on the surface can penetrate into the packaged items inside, resulting in mildew and deterioration of the packaged items