阅读说明：本技术 一种防护鼻塞及其制备方法 (Protective nasal plug and preparation method thereof ) 是由 李松晶 杨天航 孙林 王磊 彭敬辉 于 2020-06-10 设计创作，主要内容包括：一种防护鼻塞及其制备方法,属于医药卫生用品技术领域。本发明为了解决现有的口罩不能主动吸附病毒和灰尘颗粒,制备装置及流程复杂的问题,所述防护鼻塞由多孔PDMS材料制成。将蔗糖均匀倒入鼻塞模具中达到蔗糖高度线后压实抹平；将配制好的PDMS倒入模具中,PDMS的最高液面不能高于蔗糖最低处；将模具连同其内的物质进行固化；从模具中取出固化后的鼻塞放于开水中或直接加热,使其内部蔗糖流出鼻塞形成多孔结构,最后清水洗净并用压缩空气吹干鼻塞即可。本发明制备方法简单,易于操作,可以家庭自制,也可以工业大规模生产。PDMS材料的过滤芯可以反复清洗多次重复利用,节约了成本。鼻塞罩紧密贴合人体鼻部,仅覆盖鼻部,不会罩住整个脸部。(A protective nasal plug and a preparation method thereof belong to the technical field of medical and health products. The invention aims to solve the problems that the existing mask can not actively adsorb viruses and dust particles, and the preparation device and the process are complex, and the protective nasal plug is made of porous PDMS materials. Uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling; pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose; curing the mold with the contents therein; and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air. The preparation method is simple and easy to operate, can be prepared by families, and can also be produced in an industrial large scale. The filter core made of PDMS material can be repeatedly cleaned and reused, so that the cost is saved. The nasal plug cover is tightly attached to the nose of a human body and only covers the nose, and the whole face cannot be covered.)

1. A protective nasal plug is characterized in that: the protective nasal plug is made of porous PDMS material.

2. A method for preparing the protective nasal plug of claim 1, wherein the method comprises the following steps: the method comprises the following steps:

the method comprises the following steps: uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling;

step two: pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose;

step three: curing the mold with the contents therein;

step four: and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air.

3. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the second step, the prepared PDMS is prepared by mixing PDMS glue solution and a curing agent according to the ratio of 10: 1 is poured into a container and evenly stirred to obtain the product.

4. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the third step, the curing temperature is 80 ℃ and the curing time is 2 hours.

5. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the third step, the curing temperature is 60-120 ℃.

6. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the fourth step, the temperature of the direct heating is 100-160 ℃.

7. The method for preparing a protective nasal plug according to any one of claims 2 to 6, wherein the method comprises the following steps: the prepared protective nasal plug can be matched with a bearing sheet or a nasal plug cover for use.

Technical Field

The invention belongs to the technical field of medical and health products, and particularly relates to a protective nasal plug and a preparation method thereof, which can be used for preventing viruses, anti-pollution particles, haze and the like.

Background

The mask is a sanitary article, generally refers to a device which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze or paper and the like. The mask has a certain filtering function on air entering the lung, and has a protection and prevention function when the mask is worn for operation in an environment polluted by dust and the like when respiratory infectious diseases are epidemic.

However, most of the existing various types of masks for preventing viruses, haze and the like are composed of several layers of fabrics, for example, a plurality of layers of gauze or non-woven fabrics and fused fabrics are sewn to form a filter material, graphene, active carbon and the like are mixed in the middle of the filter material, the filter material is formed into a sheet shape, and the mouth and the nose are covered by the filter material. The masks are passive filtering masks, do not have active adsorption effect on viruses and dust particles, can be prepared and produced by complex industrial equipment and processes, and are difficult to be made by families and individuals.

Disclosure of Invention

The invention aims to solve the problems that the existing mask cannot actively adsorb viruses and dust particles and a preparation device and a process are complex, and provides a preparation method for protecting nasal obstruction.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a protective nasal prong made of a porous PDMS material.

A preparation method of the protective nasal plug comprises the following steps:

the method comprises the following steps: uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling;

step two: pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose;

step three: curing the mold with the contents therein;

step four: and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air.

Compared with the prior art, the invention has the beneficial effects that:

(1) the preparation method is simple and easy to operate, can be self-made by families, can also be produced in large scale in industry, and is used for family and personal emergency protection.

(2) Compared with the traditional mask for filtering particulate matters and virus molecules, the porous structure of the PDMS filter core of the home-made nasal plug can passively filter large-particle dust, can actively adsorb virus molecules through the characteristic that biological macromolecules such as DNA, protein and the like are nonspecifically adsorbed by PDMS materials, has double protection functions of active adsorption and passive filtration, can effectively prevent viruses and pollutants, and has a better protection effect.

(3) The filter core made of PDMS material can be repeatedly cleaned and reused, so that the cost is saved. The nasal plug cover can closely fit the nose of a human body, is small in size, only covers the nose, cannot cover the whole face and is comfortable to wear.

Drawings

FIG. 1 is a schematic view of a nasal plug fitted to the shape of a human nose;

fig. 2 is a schematic view of the nasal prong of the present invention;

fig. 3 is a schematic perspective view of the nasal prong shown in fig. 1;

fig. 4 is a schematic flow chart of the manufacturing process of the nasal plug of the present invention;

fig. 5 is a schematic view of the nasal prong of the present invention incorporating a carrier sheet;

fig. 6 is a schematic view of the nasal prong of the present invention.

Detailed Description

The technical solution of the present invention is further described below with reference to the drawings and the embodiments, but the present invention is not limited thereto, and modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit of the technical solution of the present invention, and the technical solution of the present invention is covered by the protection scope of the present invention.

The principle of the invention is as follows: as shown in fig. 2, the nasal plug is mainly composed of a PDMS material, the surface of which is highly hydrophobic and porous, and thus has strong nonspecific adsorption to biological macromolecules such as DNA and protein, and the virus molecules are composed of internal nucleic acids encapsulated by protein, and thus the PDMS material has nonspecific adsorption to viruses. The PDMS material is poured into the mold filled with the sucrose, and the poured nasal plug is put into hot water to melt the sucrose in the nasal plug, so that a porous structure for adsorbing pollutants is formed in the nasal plug, and the nasal plug can actively adsorb virus molecules and passively filter large-particle dust. The nasal plug mainly utilizes the nonspecific strong adsorption force of PDMS to virus protein molecules, plays a role in preventing viruses and pollutants from being inhaled into a human body, can be repeatedly cleaned for multiple times and reused, and saves the cost.