Spinning glue preparation method for dissolving animal hair and vinylon by ionic liquid

Abstract

The invention relates to a spinning glue-making method by dissolving animal hair and vinylon with an ionic liquid, which comprises the following steps: cleaning the animal hair with water, soaking with ethanol or acetone to degrease for 1-12 hours, drying at 60-90 DEG C, crushing into fine powder by a crusher, adding the treated animal hair and polyvinyl butyral into a container filled with the ionic liquid, and uniformly stirring to obtain the spinning glue-making method. The preparation method comprises the following steps: dissolving keratin in an oil bath at 120 DEG C until a transparent glue solution is formed to obtain a keratin solution, and then defoaming the keratin solution in a vacuum environment of-0.95 MPa to obtain a spinning glue solution after vacuum defoaming; according to the method, keratin and vinylon can be dissolved in a green and efficient mode, degradation of the keratin is controlled to obtain regenerated keratin with large molecular weight, the strength of keratin spinning is greatly improved, keratin molecules are made into filaments independently, the application range of the keratin spinning is widened, meanwhile, pollution to the environment is avoided, and the method is suitable for industrial production. The requirements of modern green chemical development are met.

Description

technical field [0001] The invention relates to the technical field of spinning engineering, in particular to a spinning rubber-making method for dissolving animal hair and vinylon by ionic liquid. Background technique [0002] Animal hair contains a large amount of keratin, if it can be made into fiber, it can play a special antibacterial function. - Composed of amino acids, keratin has become a natural polymer material with excellent performance due to its stable and tough structure. Large molecular weight keratin can be used in textiles, high-performance biomedical materials and other fields. The traditional keratin dissolving method uses a large amount of strong acids, strong bases, reducing agents, metal salts, etc., the macromolecular chains are basically destroyed during the dissolving process, the keratin molecular weight is low and cannot be formed into filaments alone, and the discharge of acid and alkali salts causes pollution to the environment, It does not meet...

AI Technical Summary

Problems solved by technology

The traditional keratin dissolution method uses a large amount of strong acid, strong alkali, reducing agent, metal salt, etc. During the dissolution process, the macromolecular chain is basically destroyed, and the low molecular weight of keratin cannot form silk alone, and the discharge of acid, alkali and salt will pollute the environment. It does not meet the requirements of the development of modern green chemical industry; in addition, the low strength of spinning keratin alone limits the scope of application, and how to improve the strength is also a technical difficulty; Separate filamentation has become a technical problem that has been difficult to solve for a long time