阅读说明：本技术 用edc/nhs溶液制备抗紫外蚕丝织物 (Preparation of anti-ultraviolet silk fabric by using EDC/NHS solution ) 是由 李智 代方银 蔡海华 于 2019-09-19 设计创作，主要内容包括：本发明提供了一种使用功能蚕丝织物EDC/NHS溶液制备抗紫外蚕丝织物的方法,改方法包括如下步骤：(1)EDC/NHS溶液的制备：将EDC和NHS依次加入缓冲溶液中,制备成EDC/NHS溶液,然后在其中加入氨基化石墨烯量子点,搅拌均匀后得到有氨基化石墨烯量子点的分散液；(2)将蚕丝织物在步骤(1)所得到的溶解液中多次浸轧；(3)将浸轧后的蚕丝织物在室温反应；(4)将反应后的蚕丝织物水洗、烘干。本制备方法简单快速、成本低廉,石墨烯量子点在蚕丝织物上结合牢固,不损伤蚕丝织物的力学性能。(The invention provides a method for preparing an anti-ultraviolet silk fabric by using EDC/NHS solution of a functional silk fabric, which comprises the following steps: (1) preparation of EDC/NHS solution: sequentially adding EDC and NHS into the buffer solution to prepare EDC/NHS solution, then adding aminated graphene quantum dots into the solution, and uniformly stirring to obtain dispersion liquid with aminated graphene quantum dots; (2) padding silk fabrics in the dissolving solution obtained in the step (1) for multiple times; (3) reacting the padded silk fabric at room temperature; (4) and (4) washing and drying the silk fabric after reaction. The preparation method is simple and quick, has low cost, and the graphene quantum dots are firmly combined on the silk fabric without damaging the mechanical property of the silk fabric.)

1. A method for preparing an anti-ultraviolet silk fabric by using an EDC/NHS solution is characterized by comprising the following steps:

(1) preparation of EDC/NHS solution: sequentially adding EDC and NHS into the buffer solution to prepare EDC/NHS solution, then adding aminated graphene quantum dots into the solution, and uniformly stirring to obtain dispersion liquid with aminated graphene quantum dots;

(2) padding silk fabrics in the dissolving solution obtained in the step (1) for multiple times;

(3) reacting the padded silk fabric at room temperature;

(4) and (4) washing and drying the silk fabric after reaction.

Technical Field

The invention relates to a preparation method of a functional silk fabric, in particular to a method for preparing an anti-ultraviolet silk fabric by using an EDC/NHS solution.

Background

The intense ultraviolet radiation can cause various degrees of damage to the skin of the human body, and can seriously induce the generation of skin cancer. The ultraviolet protection factor (UPF value) of the silk fabric is generally about 20, but the UPF value of the fabric specified in the textile industry reaches 30+ and is qualified, and the UPF value of the fabric reaches 50+ and is good. Therefore, in order to improve the protection effect of the silk fabric on ultraviolet rays and reduce the damage of the ultraviolet rays to human bodies, ultraviolet-resistant finishing of the silk fabric is necessary. At present, the method for preparing the ultraviolet-resistant fabric mainly comprises fiber functionalization and after-finishing, wherein the after-finishing mode comprises a suction method, a coating method, a microcapsule processing technology, a sol-gel method and a layer-by-layer assembly method. The exhaustion process results in poor bonding between the fabric and the finish. The fabric obtained by the coating method has the advantages of hard hand feeling, poor friction resistance and poor air permeability. The current technology of microcapsule processing is still immature. The sol-gel method and the layer-by-layer assembly method have the disadvantages of long technological process, low efficiency and difficult control.

(1-Ethyl-3- (3-dimethylaminopropyl) carbodiimide) in combination with NHS (N-hydroxysuccinimide) can be used as a cross-linking agent. EDC and carboxyl are coupled to form an unstable O-iso-acylurea structure, which is further reacted with NHS to form a semi-stable amine-reacted NHS ester, and finally reacted with NH2 group to form amide cross-links. The activated intermediate after EDC/NHS crosslinking reaction can be washed away. EDC/NHS has good crosslinking effect, no toxicity and good biocompatibility.

Disclosure of Invention

The invention aims to solve the technical problem of providing a method for preparing an anti-ultraviolet silk fabric by using an EDC/NHS solution aiming at the defects in the prior art. The method has the advantages of simple steps, convenient operation, no toxicity, harmlessness, no pollution, no change of the surface performance of the silk fiber, small strength damage to the silk fabric, good combination fastness of the graphene quantum dots and the silk fiber, and great development potential.

In order to achieve the purpose, the invention adopts the following solution: a method for preparing an anti-ultraviolet silk fabric by using an EDC/NHS solution is characterized by comprising the following steps:

(1) preparation of EDC/NHS solution: sequentially adding EDC and NHS into the buffer solution to prepare EDC/NHS solution, then adding aminated graphene quantum dots into the solution, and uniformly stirring to obtain dispersion liquid with aminated graphene quantum dots;

(2) padding silk fabrics in the dissolving solution obtained in the step (1) for multiple times;

(3) reacting the padded silk fabric at room temperature;

(4) and (4) washing and drying the silk fabric after reaction.

The invention has the beneficial effects that (1) the crosslinking of the EDC/NHS solution is realized by reaction activation intermediate products, and the reaction intermediate products are nontoxic and can be cleaned and removed without affecting the performance of the silk fabric; (2) under the action of EDC/NHS, the graphene quantum dots are efficiently and stably combined on the surface of the silk fiber, so that the pores of the silk fabric cannot be blocked, and the air permeability of the silk fabric is not influenced; (3) the graphene quantum dots are pollution-free and non-toxic; (4) the method has the advantages of simple and easy operation, short period, high efficiency and low cost of operating equipment.

The specific implementation mode is as follows:

the embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.