Bio-based composite material film and rice brick bag made of bio-based composite material film

Abstract

The invention provides a bio-based composite material film and a rice brick bag made of the bio-based composite material film. The problems that a traditional rice brick bag is high in cost and non-degradable, and bacterium breeding is caused by degradable performance, and the like are mainly solved. The bio-based composite material film is composed of three layers of materials with different components; the resin content in the components of the outer layer material is high, and the mechanical property is high; the content of a lubricant and a plasticizer in the resin is high, so that a smooth surface can be formed; the middle layer is a main body of the material, accounts for more than 70% of the total mass of the material, and is a biodegradable bio-based composite material taking biomass as a filling material; the inner layer is mainly made of HDPE, a small amount of shell powder with antibacterial effect is added as filler, and the antibacterial capacity of the surface, making direct contact with rice, of the inner layer is further improved. The bio-based composite material film has good barrier property, heat sealability, water resistance and moisture resistance; the mechanical property is strong, the anti-explosion performance is high, and the puncture-resistant and tear-resistant performance is excellent; the oil resistance and the fragrance retention performance are good; and the bio-based composite material film is non-toxic and tasteless.

Description

technical field [0001] The invention relates to a bio-based composite material film and a rice brick bag made from the film. Background technique [0002] The common rice brick bags currently on the market are usually made of non-degradable high-density polyethylene resin. Not only is the cost high, the product has poor air permeability and is non-degradable, but also as a single-use packaging material, it will lead to waste of petroleum-based resources. and environmental pollution; although paper and wooden rice packaging materials can be completely degraded, they are not resistant to humid environments and are prone to breed bacteria. A large amount of acid and alkali are used as processing aids in the production process, which consumes valuable wood resources and produces A large amount of industrial sewage. This patent uses bio-based composite material as the base material of the rice brick bag, which is expected to solve the above-mentioned problems. Contents of the ...

AI Technical Summary

Problems solved by technology

[0002] The common rice brick bags currently on the market are usually made of non-degradable high-density polyethylene resin. Not only is the cost high, the product has poor air permeability and is non-degradable, but also as a single-use packaging material, it will lead to waste of petroleum-based resources. and environmental pollution; although paper and wooden rice packaging materials can be completely degraded, they are not resistant to humid environments and are prone to breed bacteria. A large amount of acid and alkali are used as processing aids in the production process, which consumes valuable wood resources and produces a large amount of industrial sewage

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