Modifying method of nonthermoplastic cellulose derivative material

Abstract

The invention relates to a method for modifying nonthermoplastic cellulose derivative material, including the main content that 40wt to 80wt percent of matrices of nonthermoplastic cellulose derivative material, 1wt to 50wt percent of a reaction monomer and 10wt to 59wt percent of a plasticizer are evenly mixed and then placed into a processing and mixing device. The mixing reaction is carried out for 1 minute to 20 minutes at 60 DEG C to 140 DEG C on the condition of the operation of the mixing device. The substance discharged is the nonthermoplastic cellulose derivative material with the modified performance. The method for modifying the nonthermoplastic cellulose derivative material provided by the invention does not require completing in a solvent with the addition of an initiating agent, thereby fully avoiding side reactions caused by the initiating agent remaining in the material when the modifying method of the prior art is adopted, such as degradation and oxidation, etc., as well as the environmental pollution caused by the use of the solvent. The method of the invention has simple realization technology and high reaction efficiency, and can obviously improve the heat resistance and processing performance of the nonthermoplastic cellulose derivative material.

Description

Modification method of non-thermoplastic cellulose derivative material technical field The invention relates to a technology for processing and modifying cellulose materials, more specifically, to a method for processing and modifying non-thermoplastic cellulose derivative materials. Background technique Cellulose is a natural and fully degradable polymer material, which has the advantages of environmental friendliness, renewable, large quantity and low price. In recent years, with the increasing shortage of petroleum and coal resources, synthetic polymer materials such as plastics are difficult to degrade, and the environmental pollution is becoming more and more serious. The development and research of biodegradable materials, especially the development and research of cellulose-based materials, have received more and more attention. It is particularly important to functionally modify cellulose materials to expand their application range. At present, the modification me...

AI Technical Summary

Problems solved by technology

However, the cellulose derivatives obtained by the chemical reaction method, except for several thermoplastic cellulose derivatives such as cellulose acetate, can be directly melt-processed and modified, and the modification of other cellulose derivatives needs to be carried out in organic solvents or water at present. The solvent recovery process used for modification is complicated and pollutes the environment, and the production cost is high and the efficiency is low, which limits the expanded application of non-thermoplastic cellulose derivative materials