Production method and application of biodegradable lignocellulose bioplastic

Abstract

The invention discloses a production method and application of biodegradable lignin / cellulose bioplastic. The production method comprises the following steps: (1) dissolving cellulose and lignin by using an alkaline aqueous solution; (2) carrying out acid liquor regeneration and in-situ precipitation on cellulose and lignin to obtain a cellulose / lignin composite gel material; and (3) washing and drying the gel at high temperature to obtain the lignin / cellulose bioplastic. The novel lignin / cellulose bioplastic provided by the invention is directly derived from biomass raw materials, and has the characteristics of high toughness, excellent biocompatibility and biodegradability. The novel preparation method is environment-friendly in process and low in cost, and has industrial production and practical application prospects.

Description

technical field

[0001] The field of polymer materials and polymer synthesis, specifically relates to a preparation and processing method of a lignin / cellulose plastic substitute. Background technique

[0002] People's daily life is inseparable from a wide range of plastic products, such as packaging bags, furniture, utensils, industrial pipes, tools, cars and toys. However, most of the plastic products currently come from petroleum-based polymers, and most of their wastes are difficult to degrade and have low reuse rates. As people's daily life and production rely more and more on plastic products, their waste is increasing day by day. Non-degradable plastic waste not only accumulates in large quantities on land, but also enters lakes, oceans and other water bodies in large quantities, endangering the ecological environment of marine organisms; at the same time, it enters the human food chain through ingestion by animals, posing a huge threat to human health. Therefore, it...

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