阅读说明：本技术 一种喷雾显色剂及其制备方法 (Spray color developing agent and preparation method thereof ) 是由 杜欣 张曦 江涛 冯娜 李莎莎 陶俊 曾荔 冯一梅 冯雪 于 2020-04-16 设计创作，主要内容包括：本发明涉及喷雾显色材料技术领域,公开了一种喷雾显色剂及其制备方法,包括以下原材料,甜菜红、乙醇、维生素A、光降解剂、过氧化氢和二氧化硅粉末；制备时,将过氧化氢和维生素A加入到苯乙酮中,在1000-1500r/min的转速下搅拌10-15min,然后加入短棒状中空介孔二氧化硅,使用超声波分散20-30min,得到混合液一；在混合液一中加入甜菜红,使用超声波分散10-15min,得到混合液二；在混合液二中加入乙醇,搅拌,搅拌中使用波长100nm-150nm的紫外线照射,照射过程中,采用照射2min后,停止照射1min为一个周期的反复照射。本发明的喷雾显色剂与消毒液一起喷洒在物体表面上时,能够显色,帮助消杀人员判断消毒液的喷洒均匀性,在显色剂遇空气和光线后,逐渐挥发降解。(The invention relates to the technical field of spray color development materials, and discloses a spray color development agent and a preparation method thereof, wherein the spray color development agent comprises the following raw materials of beet red, ethanol, vitamin A, a photodegradant, hydrogen peroxide and silicon dioxide powder; during preparation, adding hydrogen peroxide and vitamin A into acetophenone, stirring at the rotation speed of 1000-1500r/min for 10-15min, then adding short rod-shaped hollow mesoporous silica, and dispersing for 20-30min by using ultrasonic waves to obtain a mixed solution I; adding beet red into the mixed solution I, and dispersing for 10-15min by using ultrasonic waves to obtain mixed solution II; adding ethanol into the second mixed solution, stirring, irradiating with ultraviolet rays with wavelength of 100nm-150nm for 2min, and stopping irradiation for 1 min. When the spray color developing agent and the disinfectant are sprayed on the surface of an object, the spray color developing agent can develop color, helps disinfection personnel judge the spraying uniformity of the disinfectant, and gradually volatilizes and degrades after the color developing agent meets air and light.)

1. A spray colour developer characterized by: comprises the following raw materials of beet red, ethanol, vitamin A, a photodegradation agent, hydrogen peroxide and silicon dioxide powder.

2. A spray colour developer according to claim 1, characterised in that: the raw materials of the spray color developing agent comprise, by mass, 0.3-0.4 part of beet red, 4-6 parts of ethanol, 1-2 parts of vitamin A, 2-3 parts of a photodegradation agent, 1-2 parts of hydrogen peroxide and 0.5-1.5 parts of silicon dioxide powder.

3. A spray colour developer according to claim 2, characterised in that: the raw materials of the spray color developing agent comprise, by mass, 0.35 part of beet red, 5 parts of ethanol, 1.5 parts of vitamin A, 2.5 parts of a photodegradation agent, 1.5 parts of hydrogen peroxide and 1.0 part of silicon dioxide powder.

4. A spray colour developer according to claim 3, characterised in that: the photodegradant is acetophenone.

5. A spray colour developer according to claim 4, characterised in that: the silicon dioxide is short rod-shaped hollow mesoporous silicon dioxide, and the particle size is 0.5-0.8 mu m.

6. The method for preparing a spray color developer according to claim 5, wherein the spray color developer comprises the following steps: the method comprises the following steps:

s1, adding hydrogen peroxide and vitamin A into acetophenone, stirring at the rotation speed of 1000-1500r/min for 10-15min, then adding short rod-shaped hollow mesoporous silica, and dispersing for 20-30min by using ultrasonic waves to obtain a mixed solution I;

s2, adding beet red into the mixed solution I, and dispersing for 10-15min by using ultrasonic waves to obtain mixed solution II;

and S3, adding ethanol into the mixed solution II, stirring, irradiating with ultraviolet rays with a wavelength of 100nm-150nm during stirring, stopping irradiation for 1min in the irradiation process, and repeating the irradiation for one period to obtain the spray color developing agent.

7. The method for preparing a spray color developer according to claim 6, wherein the spray color developer comprises: the ultrasonic frequency of the ultrasonic dispersion is 10000-15000 Hz.

8. The method for preparing a spray color developer according to claim 7, wherein the spray color developer comprises: the preparation method of the short rod-shaped hollow mesoporous silica comprises the following steps of taking 5-7 parts of tetraethyl orthosilicate, dissolving the tetraethyl orthosilicate in an ether solution, adding 2-3 parts of polyethylene glycol, uniformly stirring, standing for 12-24 hours, heating to 100 ℃ and 120 ℃ for reaction for 5-6 hours, carrying out suction filtration and drying on a product, and calcining at 650 ℃ for 1-3 hours to prepare the short rod-shaped hollow mesoporous silica.

Technical Field

The invention relates to the technical field of spray color development materials, in particular to a spray color development agent and a preparation method thereof.

Background

In the period of flooding of epidemic situations, in order to prevent virus diffusion, virus is generally killed in a mode of spraying disinfectant in public areas with intensive personnel; particularly, in hospitals with concentrated patients, it is necessary to sterilize and disinfect the surfaces of every place in the hospital, including wall surfaces, floors, corners, various table and chair instruments, and the like.

However, disinfectant is sprayed by people, at present, common disinfectant is colorless and transparent, for example, common medical alcohol, 84 disinfectant and the like are colorless and transparent, after disinfectant is sprayed on the surfaces of objects by disinfection personnel, the disinfection personnel cannot or hardly see the disinfectant sprayed on the surfaces of the objects, and the disinfection personnel usually hardly know whether all the surfaces of the objects are sprayed in place or whether the spraying amount is enough, so that the disinfectant on the surfaces of some objects is frequently sprayed more, the disinfectant on the surfaces of some objects is sprayed less unevenly, and even some corners forget to spray, so that a certain space is left for the survival and the diffusion of viruses.

In order to solve the above problems, some researchers have proposed to add a part of pigment in the disinfectant, when the disinfectant is sprayed on the surface of an object by a sterilizer, the pigment is sprayed on the surface of the object together with the disinfectant, and the sterilizer can determine which objects are sprayed and which objects are not sprayed according to the existence of colors sprayed on the surface of the object, and can also determine the uniformity of the disinfectant spraying according to the depth of the colors.

Although the method solves the problem of uneven spraying of the disinfectant due to human factors, if the pigment is directly added into the disinfectant, the pigment is always adhered to the surface of an object after being sprayed on the surface of the object along with the disinfectant and cannot be volatilized, and the surface of the object is polluted by color. Therefore, there is a need for a spray color developing agent that can develop color when spraying disinfectant and that can remove the color by itself after a certain period of time.

Disclosure of Invention

In view of the above, the present invention provides a spray color developing agent and a preparation method thereof, which can overcome the technical problems in the background art, and the spray color developing agent of the present invention can develop color when being sprayed on the surface of an object together with a disinfectant, help disinfection personnel to judge the spraying uniformity of the disinfectant, and gradually volatilize and degrade after the color developing agent encounters air and light.

The invention solves the technical problems by the following technical means:

a spray color developing agent comprises beet red, ethanol, vitamin A, photodegradation agent, hydrogen peroxide and silicon dioxide powder. The beet red is used as natural pigment, is non-toxic and harmless, and can promote the degradation of the beet red under the action of light and oxygen. The water solution of the beet red is red to red purple, and after the water solution is mixed in the disinfectant, the whole disinfectant is red, when the disinfectant and the disinfectant are sprayed on the surface of an object, the sprayed part can develop color, and disinfection personnel can judge the spraying uniformity of the disinfectant according to the existence or the depth of the color on the object.

After the disinfectant is sprayed on the surface of an object, the photodegradable agent can be rapidly photodegraded after being exposed to light, hydrogen peroxide and vitamin A are released after photodegradation, the hydrogen peroxide has strong oxidizability and accelerates oxidative degradation of beet red together with the vitamin A, and the beet red is volatilized along with ethanol after oxidative degradation, so that pigment traces can not be left on the surface of the object.

Furthermore, the raw materials of the spray color developing agent comprise, by mass, 0.3-0.4 part of beet red, 4-6 parts of ethanol, 1-2 parts of vitamin A, 2-3 parts of a photodegradation agent, 1-2 parts of hydrogen peroxide and 0.5-1.5 parts of silicon dioxide powder.

Furthermore, the raw materials of the spray color developing agent comprise, by mass, 0.35 part of beet red, 5 parts of ethanol, 1.5 parts of vitamin A, 2.5 parts of a photodegradation agent, 1.5 parts of hydrogen peroxide and 1.0 part of silicon dioxide powder. According to the experiment, the formula proportion can gradually and completely degrade the beet red in 10-15 minutes, and can meet the requirement on the pigment degradation time in a virus killing scene.

Further, the photodegradant is acetophenone. Acetophenone is used as a photodegradant, is an oily liquid with fruit fragrance, and molecules of acetophenone can wrap more hydrogen peroxide and microorganism A, and acetophenone can be decomposed rapidly under the catalysis of light to release hydrogen peroxide and vitamin A molecules.

Further, the silicon dioxide is short rod-shaped hollow mesoporous silicon dioxide, and the particle size is 0.5-0.8 μm.

The invention also provides a preparation method of the spray color developing agent, which comprises the following steps:

s1, adding hydrogen peroxide and vitamin A into acetophenone, stirring at the rotation speed of 1000-1500r/min for 10-15min, then adding short rod-shaped hollow mesoporous silica, and dispersing for 20-30min by using ultrasonic waves to obtain a mixed solution I;

s2, adding beet red into the mixed solution I, and dispersing for 10-15min by using ultrasonic waves to obtain mixed solution II;

and S3, adding ethanol into the mixed solution II, stirring, irradiating with ultraviolet rays with a wavelength of 100nm-150nm during stirring, stopping irradiation for 1min in the irradiation process, and repeating the irradiation for one period to obtain the spray color developing agent.

Further, the ultrasonic frequency of the ultrasonic dispersion is 10000-15000 Hz.

Further, the preparation method of the short rod-shaped hollow mesoporous silica comprises the following steps of dissolving 5-7 parts of tetraethyl orthosilicate in an ether solution, adding 2-3 parts of polyethylene glycol, uniformly stirring, standing for 12-24 hours, heating to 100 ℃ and 120 ℃ for reaction for 5-6 hours, filtering and drying a product, and calcining at 650 ℃ for 1-3 hours to prepare the short rod-shaped hollow mesoporous silica. The short rod-shaped hollow mesoporous silica has porosity and can adsorb more acetophenone-coated hydrogen peroxide and vitamin A micro-particles in the mixed solution.

The invention has the beneficial effects that:

the invention uses the beet red as the pigment, the beet red belongs to the natural pigment, is nontoxic and harmless, and can be degraded under the catalytic action of light and oxygen; the invention also utilizes the micropores on the short rod-shaped hollow mesoporous silica to contain the degradation agent of which the acetophenone is wrapped by the hydrogen peroxide and the vitamin A; after the medicine sprays the surface of object, at first beet red can the colour development, the personnel of killing can judge the homogeneity that the antiseptic solution sprayed according to the colour on the object surface has or the shade, then acetophenone can comparatively quick photodegradation after meeting the light, after the photodegradation, will release hydrogen peroxide and vitamin A, hydrogen peroxide has stronger oxidability, accelerate oxidative degradation to beet red together with vitamin A, beet red oxidative degradation back, volatilize along with ethanol together, will not leave the pigment trace on the surface of object. Therefore, the invention not only meets the requirement that sterilization personnel can develop color when spraying the medicine, but also can independently degrade and volatilize the pigment in a short time, thereby avoiding pigment pollution to the surface of an object.

Detailed Description

The present invention will be described in detail below with reference to examples 1 to 3: