Novel degradable plastic bag material

Abstract

The invention provides a novel degradable plastic bag material which contains the following components in parts by weight: 50-60 parts of modified PAV, 20-30 parts of modified PVA resins, 30-40 parts of polyurethane, 20-30 parts of ethylene-vinyl acetate copolymer, 10-20 parts of styrene-ethylene/butane-styrene copolymer, 10-20 parts of sodium alginate, 10-20 parts of hydroxypropyl methyl cellulose, 30-40 parts of modified starch, 20-30 parts of aloe gel, 3-10 parts of plasticizer and 3-10 parts of stabilizer. According to the invention, the macromolecule blending and modifying technique is utilized and a specific film-forming technique is adopted for preparing the novel degradable plastic bag material; the products are nontoxic and can be naturally degraded; the fish living safety and the environment are protected; the traditional plastic bag is replaced by the novel degradable plastic bag material; the problems of failure to degrade as well as water and environment pollution can be solved.

Description

technical field [0001] The invention relates to the technical field of fishing bait packaging materials, in particular to a novel degradable plastic bag material. Background technique [0002] At present, most of the degradable plastic films produced in my country are general-purpose resin-filled starch-based plastic films, such as low-density polyethylene (LDPE) / starch, high-impact polystyrene (HIPS) / starch, etc., and the starch-based plastic films produced Contains some non-degradable ingredients, such as polyethylene, polyvinyl chloride, polystyrene, etc., which are likely to cause secondary pollution; in addition, the filled starch and general-purpose resin are not completely miscible, and some starch granules only play a filling role. In addition to low degradability, many degradable plastic films have low flexibility and mechanical properties, are easy to tear, have poor thermal stability, are not convenient for thermoplastic processing, and are more expensive than trad...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a new type of degradable plastic bag material, which is made by polymer blending and modification technology, through a specific film-forming process, and the product is non-toxic, naturally degradable, and protects the survival of fish Safety and the environment are free from pollution, replacing traditional plastic bags, solving the problems of non-degradable, polluting water bodies and the environment