Biodegradable modified lignin particles and production method thereof

Abstract

The invention relates to biodegradable modified lignin particles. The biodegradable modified lignin particles comprise the following raw components: 35 to 45 weight parts of lignin, 40 to 55 weight parts of poly(butylene adipate / terephthalate), 4 to 6 weight parts of auxiliary agents and 0.5 to 1 weight part of an organic anti-blocking agent; the auxiliary agents comprise stearic acid and polyethylene wax. A production method for the biodegradable modified lignin particles comprises the following steps: mixing the raw components according to the above parts by weight; heating and obtaining a coarse material after the raw components are mixed uniformly; taking the coarse material and granulating the coarse material to obtain the biodegradable modified lignin particles. The biodegradable modified lignin particles can be completely biodegraded after use, have high mechanical and processing performance, and have important significance to protect ecological environment and reduce white pollution. The biodegradable modified lignin particles are simple in production process and low in cost, and are suitable for batch production.

Description

technical field [0001] The invention belongs to the technical field of environmentally friendly degradable materials, and in particular relates to a biodegradable modified lignin particle and a manufacturing method thereof. Background technique [0002] Biodegradable material is a good environment-friendly material, and the popularization and use of this material is of great significance to reduce white pollution and protect the natural environment. At present, in China and around the world, common fully biodegradable materials generally use polylactic acid (PLA) as a raw material, which needs to be made from starch raw materials extracted from plant resources (such as corn), and the production process requires consumption A large amount of edible food for human beings not only causes waste of food resources, but also increases the cost of manufacturing and producing completely biodegradable materials, which is not suitable for promotion on a large scale. At the same time, ...

AI Technical Summary

Problems solved by technology

At present, in China and around the world, common fully biodegradable materials generally use polylactic acid (PLA) as a raw material, which needs to be made from starch raw materials extracted from plant resources (such as corn), and the production process requires consumption A large amount of edible food for human beings not only causes a waste of food resources, but also increases the cost of manufacturing and producing fully biodegradable materials, which is not suitable for promotion on a large scale

At the same time, the fully biodegradable materials prepared using starch as a raw material have low elasticity, poor mechanical properties and processing stability, and are very sensitive to humidity. Under high or low humidity conditions, the quality of the material will change. The problem of slow performance