Fibroin strengthening method for fragile silk fabrics

Abstract

The invention provides a fibroin reinforcing method for brittle silk fabric, which adopts the following steps: (A)adding silk fiber into CaCl2 solution with weight percentage concentration of 50% at the ratio of 1:20-50 by weight, dissolving for 10-120 minutes at the temperature of 98+/-2 DEG C, cooling and filtering the dissolved solution, filling the filtrate into a dialysis bag and executing dialysis in deionized water, acquiring pure fibroin solution after 72 hours; (B) placing brittle silk fabric into the fibroin solution with weight percentage concentration of 0.1-5% at the ratio of 1:50-150 by weight, soaking for 1 minute to 2 hours, then naturally drying the silk fabric; (C) placing silk fabric into the glutaraldehyde solution with weight percentage concentration of 0.001-0.5% at the ratio of 1:50-150 by weight, soaking for 1 minute to 2 hours at the temperature of 25-35 DEG C; (D) acquiring fibroin reinforced silk fabric after naturally drying the processed product. The invention has advantages of simple method, easy operation, low cost, good effect, ability to greatly improve strength of silk cultural relics, benefit to cultural relics protection and so on.

Description

Technical field [0001] The invention relates to a method for reinforcing silk fibroin of fragile silk fabrics, and 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. External water, heat, oxygen, light, acid, alkali, microorganisms and other different factors will cause the denaturation of silk protein and the break of the macromolecular chain, which makes the silk fiber fragile and easy to break, and the mechanical streng...

AI Technical Summary

Problems solved by technology

External factors such as water, heat, oxygen, light, acid, alkali, microorganisms, etc. will cause denaturation of silk protein and breakage of macromolecular chains, making silk fibers fragile and easy to break, and the mechanical strength is obviously reduced

[0003] The reinforcement and protection of silk cultural relics at home and abroad mainly include braiding reinforcement method, mounting method, filming method, silk screen reinforcement method, resin reinforcement method, adhesive reinforcement method, Pylaron vacuum filming method, graft copolymerization method, etc., but There are certain defects in these methods, and the application is limited.