Natural Eucommia ulmoides gum (EUG) emulsion

Abstract

The invention discloses a natural EUG emulsion. A preparation method for the natural EUG emulsion comprises the following steps: dissolving crude EUG in an organic solvent A to prepare a gutta-perchasolution with a mass percentage of 3-8%, then adding an aqueous solution formed by successively dissolving a stabilizer B, a co-emulsifier C and an emulsifier D, adding an alkali E to adjust the pH value of the formed solution to 9-11, and carrying out emulsification at a normal temperature by using a high-speed emulsifying machine until the color of the solution becomes milky white; and subjecting the prepared EUG emulsion to reduced-pressure distillation at a pressure of 0.05-0.06 atmosphere and a temperature of 50-55 DEG C to remove the organic solvent, then adding the stabilizer B accounting for 0.5-2.0% of dry EUG, and carrying out uniform mixing to prepare the stable natural EUG emulsion. According to the invention, the physical method of emulsification is employed to wrap EUG molecules and to disperse the EUG molecules in the aqueous solution without destroying the overall structure of the EUG molecules; that is, the original properties of the EUG are retained, the crystallization of the EUG is effectively inhibited, the elasticity of the EUG is increased, and the machining performance of the EUG is enhanced.

Description

technical field [0001] The invention relates to emulsification of natural eucommia gum and specific preparation of natural eucommia gum emulsion. Background technique [0002] Eucommia ulmoides Oliv (Eucommia ulmoides Oliv) belongs to the angiosperm phylum, the Hamamelis subclass of the dicotyledonous plant class, and the only tree in the order Eucommia ulmoides. The leaves, bark, root bark and pericarp of the plant are rich in a white filamentous or fine light yellow granule Eucommia ulmoides gum (EUG). The unique properties and the importance of practical application of Eucommia gum have long been recognized by the world. The application value and potential functional properties of pure natural biological materials have infinite charm, and the development prospect is very broad. [0003] At present, natural rubber resources are scarce on a global scale. In addition to expanding the planting area of ​​Hevea trilobata and increasing the yield per unit area in the world, see...

AI Technical Summary

Problems solved by technology

[0007] If the vulcanization method destroys the regularity of the molecular chain, thereby destroying the crystalline structure, the method of obtaining the vulcanized rubber of Eucommia gum in an elastomeric state requires a different masticating formula than the traditional formula, making it impossible to blend with other rubbers and perform secondary modification, etc. reaction

Modification of rubber by epoxidation, chlorination, hydrogenation and other methods to introduce reactive groups into the main chain can effectively destroy the crystallinity of the original rubber, but it also changes some of its own characteristics, making the original rubber unable to maintain its excellent performance.