Preparation and application of fibroin strengthening protecting agent

Abstract

The invention discloses a preparation of a protective agent for reinforcing fibroin and an application thereof. The protective agent is formed by two parts of fibroin solution and an auxiliary agent, namely, an ethylene glycol diglycidyl ether aqueous solution, and the preparation of the protective agent is that A) silk fiber is put into Na2CO3 solution and boiled for degumming; B) the silk fiber after the treatment is put into a CaCl2 solution for dissolution at high temperature, and then dissolving liquor is cooled and filtered, and filtrate is put into a dialysis bag and arranged in deionized water for dialysis to obtain pure fibroin solution; C) the obtained fibroin solution is arranged in a spray drier for spraying and drying to form soluble fibroin powder, and reserved for later use; D) the soluble fibroin powder is used for preparing the fibroin solution by the deionized water; and E) the ethylene glycol diglycidyl ether aqueous solution is prepared; when in use, the fibroin solution is sprayed on silk to be reinforced and then the ethylene glycol diglycidyl ether aqueous solution is sprayed on the silk to be reinforced; the preparation can substantially improve the strength of fragile silk and is applied to the protection of silk cultural relics, and has the advantages of simple method, convenient operation, no influence on the appearance of the silk cultural relics, and the like.

Description

Technical field [0001] The invention relates to a preparation method of a silk protein reinforced protective agent, which belongs to the technical field of cultural relic protection. Background technique [0002] Silk is a symbol of ancient Chinese culture. A large number of silk cultural relics are unearthed every year in my country. These silk cultural relics span over six thousand years and have high historical, archaeological and scientific value. They are an important part of my country’s cultural relics and are used to study my country’s politics, economy, art, and technology. All aspects are extremely important physical information. Because silk protein is a kind of biopolymer material, it is easily damaged by many factors. Different factors such as external water, heat, oxygen, light, acid, alkali, microorganisms, etc., will cause the silk protein to be denatured and damaged. The breaking of the molecular chain makes the silk fiber fragile and easy to break, and the mecha...

AI Technical Summary

Problems solved by technology

Since silk protein is a kind of biopolymer material, it is easy to be damaged by various factors, such as external water, heat, oxygen, light, acid, alkali, microorganisms and other different factors will cause silk protein to denature and magnify. The breakage of the molecular chain makes the silk fiber fragile and easy to break, and the mechanical strength decreases obviously.

Many silk cultural relics that appeared to be well preserved and brightly colored when unearthed have actually been severely aged and brittle under the joint action of various internal and external factors, that is to say, the silk protein has undergone severe denaturation and accompanied by a large number of If the molecular chain is broken, it will be easily damaged if it cannot be effectively protected.