Preparation method of natural gutta-percha emulsion

Abstract

The invention discloses a preparation method of natural gutta-percha emulsion. The preparation method comprises the following steps: freezing eucommia ulmoides seed shells, leaves or barks at low temperature, crushing, sieving, dissolving, extracting and separating to obtain a gutta-percha liquid; adding the gutta-percha liquid into a glass reaction kettle, adding an oily emulsifier and an antioxidant, and stirring to obtain a gutta-percha crude emulsion; adding a water-based emulsifier, a pH regulator, a mechanical stabilizer and soft water into a reaction kettle, heating, adding the gutta-percha crude emulsion, distilling, shearing and emulsifying; and finally, standing and filtering the emulsion to obtain the natural gutta-percha emulsion. In the preparation process, the dissolved gluesolution is directly used for emulsification, so that the procedures of solidification, solvent removal, drying and the like of the gutta-percha emulsion in the extraction process are omitted, the useamount of the solvent is reduced, the solvent loss is relatively reduced, the energy consumption is reduced, and the cost is saved; meanwhile, the same solvent is adopted for gelatin extraction and emulsification, the process is simple and convenient, operation is easy, and large-scale production is facilitated.

Description

technical field [0001] The invention belongs to the field of eucommia latex, in particular to a preparation method of natural eucommia latex. Background technique [0002] Eucommia gum originates from the Eucommia ulmoides tree, and mainly exists in the leaves, bark and seeds of Eucommia ulmoides. Among them, the leaves contain 2% to 4% of glue, the skin contains 8% to 10% of glue, and the seeds contain 10% to 30%. Very precious high-quality natural rubber resources. At present, the cultivation area of ​​Eucommia in my country is about 350,000 hm 2 , accounting for more than 99% of the total planting area of ​​Eucommia ulmoides in the world, and has unique resource advantages. Eucommia gum, like palaquium gutta in the tropical rainforests of Southeast Asia, and mimusops balata in the tropical rainforests of South America, contain trans-1,4-polyisoprene, so Eucommia gum is also known as guttapercha or balata. The chemical composition of eucommia gum is the same as that of...

AI Technical Summary

Problems solved by technology

[0005] At present, the emulsification method of eucommia gum is to plasticize the extracted solid eucommia gum, dissolve it in an organic solvent, and then emulsify the glue. To remove the used solvent, dry, and several more processes, resulting in an increase in the cost of Eucommia latex, which limits the application and scope of Eucommia latex to a certain extent