Production of spinning stoste with cellulose base fibre

Abstract

The invention opened a preparing method of the cellulose fibre spinning stock solution. The solvent is the intermixture of the [BMIM]Cl and the [BMIM]BF4. The cellulose dissolves in the solvent after breaking up to get the uniform and transparent liquid. So it can save the energy, decrease the pollution and improve the quality of the stock solution.

Description

technical field

[0001] The present invention relates to a kind of preparation method of cellulose fiber spinning dope, in particular to a kind of ionic liquid [BMIM]Cl and [BMIM]BF 4 The invention relates to a preparation method of a cellulose fiber spinning dope in which the mixed liquid is a solvent. Background technique

[0002] Cellulose is a renewable resource that is ubiquitous in nature. Trees, cotton, rice stalks, corn and other plants and some bacterial secretions contain a lot of cellulose. Cellulose fibers may become a renewable resource to replace petroleum-based fibrous products. At present, the production of cellulose fiber mainly uses sodium hydroxide, acetone, carbon disulfide, etc. as solvents and additives, and the cellulose used needs to be yellowed, aged and matured, and it also involves formaldehyde, sulfite, sodium sulfide, sulfuric acid And chemical reagents such as zinc sulfate, all of the above-mentioned organic reagents are volatile, causing seri...