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Method for preparing fibroin strengthening agent
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A technology of silk protein and reinforcing agent, which is applied in the field of preparation of silk protein reinforcing agent, and can solve problems such as limitations
Inactive Publication Date: 2010-11-17
ZHEJIANG SCI-TECH UNIV +1
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Abstract
Description
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Problems solved by technology
[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.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Experimental program
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Effect test
Embodiment 1
[0021] Embodiment 1, the preparation of silk protein reinforcing agent adopts the following steps:
[0022] A) the silk fiber is put into the CaCl of 50% by weight percentage concentration by weight ratio 1:20 2 In the solution, dissolve at 96°C for 10 minutes, cool the solution, filter it, put the filtrate into a dialysis bag, place it in deionized water for dialysis, and obtain a pure silk protein solution after 72 hours;
[0024] C) Before the reinforcement treatment, the above-mentioned soluble silk protein powder is configured into a silk protein solution with a concentration of 0.1% by weight with deionized water;
[0025] D) preparation weight percent concentration is the glutaraldehyde solution of 0.001%;
[0026] E) After the abov...
Embodiment 2
[0028] Embodiment 2, the preparation of silk protein reinforcing agent adopts the following steps:
[0029] A) putting the silk fiber into CaCl with a concentration of 50% by weight in a weight ratio of 1:50 2 In the solution, dissolve at 100°C for 120 minutes, cool the solution, filter it, put the filtrate into a dialysis bag, place it in deionized water for dialysis, and obtain a pure silk protein solution after 72 hours;
[0030] B) placing the obtained silk protein solution in a spray drier, spraying and drying under the conditions of an inlet air temperature of 220° C. and an outlet air temperature of 95° C. to obtain a soluble silk protein powder for use;
[0031] C) before the reinforcement treatment, the above-mentioned soluble silk protein powder is configured into a silk protein solution with a concentration of 5% by weight with deionized water;
[0032] D) preparation weight percentage concentration is the glutaraldehyde solution of 0.5%;
[0033] E) After the abo...
Embodiment 3
[0035] Embodiment 3, the preparation of silk protein reinforcing agent adopts the following steps:
[0036] A) the silk fiber is put into the CaCl of 50% by weight percentage concentration by weight ratio 1: 30 2 In the solution, dissolve at 98°C for 80 minutes, cool the solution, filter it, put the filtrate into a dialysis bag, place it in deionized water for dialysis, and obtain a pure silk protein solution after 72 hours;
[0037] B) The obtained silk protein solution is placed in a spray dryer, and spray-dried under the condition that the inlet air temperature is 200° C. and the outlet air temperature is 80° C., to obtain soluble silk protein powder for use;
[0038] C) before the reinforcement treatment, the above-mentioned soluble silk protein powder is configured into a silk protein solution with a concentration of 1% by weight with deionized water;
[0039] D) preparation weight percent concentration is the glutaraldehyde solution of 0.01%;
[0040] E) After the abov...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention provides a method for preparing fibroin reinforcement agent, which is composed of fibroin solution and additive glutaraldehyde solution. The preparation 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, coolingand 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 the acquired fibroin solution into a spray dryer, spray drying under condition of air inlet temperature at 180-220 DEG C and air outlet temperature at 70-95 DEG C, producing soluble silk albumen powder for standby use;(C)before reinforcement treatment, preparing fibroin solution with weight percentage concentration of 0.1-5% by mixing the soluble silk albumen powder with deionized water; (D)preparing glutaraldehyde solution with weight percentage concentration of 0.001-0.5%; (E)acquiring fibroin reinforcement agent composed of fibroin solution and additive glutaraldehyde solution after the above preparation courses. The fibroin reinforcement agent has advantages of low cost and good effect, and can greatly improve strength of brittle silk fabric.
Description
technical field [0001] The invention relates to a preparation method of a silk protein reinforcing agent, which belongs to the technical field of cultural relics protection. Background technique [0002] Silk is a symbol of ancient Chinese culture. A large number of silk cultural relics are unearthed every year in our country. These silk cultural relics span six thousand years and have high historical, archaeological and scientific value. Very important physical data in various aspects. Since silk protein is a biopolymer material, it is easily damaged by various factors. External factors such as water, heat, oxygen, light, acid, alkali, and microorganisms will cause denaturation of silk proteins and breakage of macromolecular chains, making silk fibers fragile and easy to break, and the mechanical strength will decrease significantly. Many silk cultural relics that seemed to be well preserved and brightly colored when unearthed have actually been severely aged and brittle...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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