Preparation and application of fibroin strengthening protecting agent

A technology of strengthening protective agent and silk protein, which is applied in textiles and papermaking, fiber treatment, animal fiber, etc., can solve the problems of easy damage, fragile silk fiber, and broken macromolecular chains, and achieve superior high temperature aging resistance and high temperature aging resistance Highlights and restores the luster of silk

Inactive Publication Date: 2009-04-01
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 cult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1. The silk protein reinforcing agent of the present invention is composed of silk protein solution and auxiliary ethylene glycol diglycidyl ether aqueous solution. Its preparation adopts the following steps:

[0018] A) Put the silk fiber into 0.5% weight percent Na with a weight ratio of 1:50 2 CO 3 In the solution, boil and degummed for 30 minutes;

[0019] B) Put the silk fiber after the above treatment into CaCl with a concentration of 50% by weight at a weight ratio of 1:50 2 Dissolve the solution in the solution at 98°C for 80 minutes, cool the solution, filter, and put the filtrate into a dialysis bag, place it in deionized water for dialysis, and obtain a pure silk protein solution after 72 hours;

[0020] C) Place the obtained silk protein solution in a spray dryer, and spray-dry it under the conditions of an inlet air temperature of 200°C and an outlet temperature of 70°C to prepare soluble silk protein powder, which is ready for use;

[0021] D) Before t...

Embodiment 2

[0026] Example 2. The silk fibroin reinforcing agent of the present invention is composed of silk fibroin solution and auxiliary ethylene glycol diglycidyl ether aqueous solution. Its preparation adopts the following steps:

[0027] A) Put the silk fiber into 0.5% weight percent Na with a weight ratio of 1:40 2 CO 3 In the solution, boil and degummed for 25 minutes;

[0028] B) Put the above-mentioned processed silk fiber into CaCl with a weight percentage of 45% at a weight ratio of 1:30 2 Dissolve the solution in the solution at 96°C for 30 minutes, cool the solution, filter, and put the filtrate into a dialysis bag, place it in deionized water for dialysis, and obtain a pure silk protein solution after 72 hours;

[0029] C) Place the obtained silk protein solution in a spray dryer, and spray-dry it under the conditions of an inlet air temperature of 180°C and an outlet air temperature of 70°C to prepare soluble silk protein powder for use;

[0030] B) Before the reinforcement t...

Embodiment 3

[0035] In Example 3, the silk protein reinforcing agent of the present invention is composed of silk protein solution and the auxiliary agent ethylene glycol diglycidyl ether aqueous solution. Its preparation adopts the following steps:

[0036] A) Put the silk fiber into 0.5% weight percent Na with a weight ratio of 1:60 2 CO 3 In the solution, boil and degummed for 35 minutes;

[0037] B) Put the above-mentioned processed silk fiber into CaCl with a weight percentage of 55% at a weight ratio of 1:70 2 In the solution, dissolve at 100°C for 120 minutes, cool the solution, filter, and put the filtrate into a dialysis bag, place it in deionized water for dialysis, and obtain a pure silk protein solution after 72 hours;

[0038] C) Place the obtained silk protein solution in a spray dryer, and spray-dry it under the conditions of an inlet air temperature of 220°C and an outlet temperature of 95°C to prepare soluble silk protein powder, which is ready for use;

[0039] B) Before the ...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): D06M15/15D06M13/11D06M101/12
Inventor 胡智文赵丰郑海玲周旸黄小芳
Owner ZHEJIANG SCI-TECH UNIV
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