阅读说明：本技术 一种可在低温冷链使用的消毒剂及其制备方法 (Disinfectant capable of being used in low-temperature cold chain and preparation method thereof ) 是由 周正涵 周静 周仪 于 2021-02-07 设计创作，主要内容包括：本发明涉及一种可在低温冷链使用的消毒剂及其制备方法,所述消毒剂的溶剂为水,溶质包括酒精、聚六亚甲基胍、三价银离子。在所述消毒剂中,酒精的浓度为20%～40%,聚六亚甲基的浓度为10～50ppm,三价银离子的浓度为10～50ppm。所述消毒剂在-25℃～0℃不结冰,在常温及-25℃～0℃的低温条件下均具有广谱、长效、无毒无害的优异性能,具有极强的杀灭细菌的能力,并且其杀灭细菌的效果在-25℃～0℃下不减弱,制备方法简单易行。(The invention relates to a disinfectant capable of being used at low temperature and a preparation method thereof. In the disinfectant, the concentration of alcohol is 20-40%, the concentration of polyhexamethylene is 10-50 ppm, and the concentration of trivalent silver ions is 10-50 ppm. The disinfectant does not freeze at the temperature of minus 25 ℃ to 0 ℃, has excellent performances of broad spectrum, long effect, no toxicity and harmlessness at normal temperature and at the low temperature of minus 25 ℃ to 0 ℃, has extremely strong capability of killing bacteria, does not weaken the effect of killing the bacteria at the temperature of minus 25 ℃ to 0 ℃, and has a simple and easy preparation method.)

1. The disinfectant capable of being used in a low-temperature cold chain is characterized in that a solvent of the disinfectant is water, and solutes of the disinfectant comprise alcohol, polyhexamethylene guanidine and trivalent silver ions, wherein the concentration of the alcohol is 20% -40%, the concentration of the polyhexamethylene is 10-50 ppm, and the concentration of the trivalent silver ions is 10-50 ppm.

2. The preparation method of the disinfectant capable of being used in the low-temperature cold chain is characterized by comprising the following steps of:

A. mixing polyhexamethylene guanidine and water to obtain polyhexamethylene guanidine mother liquor with the concentration of 0.1-10%;

B. mixing trivalent silver ions with water to obtain a trivalent silver ion solution with the concentration of 0.01-0.5%;

C. and uniformly mixing 1 part of the polyhexamethylene guanidine mother liquor, 1 part of the trivalent silver ion solution, 200-500 parts of water and 100-200 parts of alcohol to obtain the disinfectant.

3. The method for preparing a disinfectant used in a cold chain at a low temperature according to claim 2, wherein: and C, adding 200-500 parts of water and 200-500 parts of 80% alcohol solution in the sequence of adding water and alcohol in the step C.

4. The method for preparing a disinfectant used in a cold chain at a low temperature according to claim 2, wherein: 1 part of polyhexamethylene guanidine and 100 parts of water were mixed to obtain a polyhexamethylene guanidine mother liquor having a concentration of 1%.

5. The method for preparing a disinfectant used in a cold chain at a low temperature according to claim 2, wherein: 0.5 part of trivalent silver ions and 100 parts of water were mixed to obtain a 0.5% trivalent silver ion solution.

Technical Field

The invention relates to a disinfectant, in particular to a disinfectant capable of being used in a low-temperature cold chain and a preparation method thereof.

Background

In the global trade today, the world is closely linked by the transportation network, and with the development of trade logistics, viruses and bacteria appearing in any place are transmitted to all places through the transportation network, so that the goods need to be killed before being transported, and the viruses and bacteria are prevented from spreading. For the goods transported in frozen regions and some cold chains all year round, common disinfectants such as bleaching powder, sodium hypochlorite and the like are not resistant to low temperature, the disinfection effect is reduced or even loses efficacy under the low temperature condition, the problem is solved by adopting a measure of increasing the concentration of the disinfectants, and the direct consequence caused by the increase of the disinfection cost at the port, serious pollution to the environment and damage and influence on the goods caused by the residual high-concentration disinfectants on the goods is realized.

Disclosure of Invention

The invention aims to provide a disinfectant capable of being used in a low-temperature cold chain and a preparation method thereof.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides a disinfectant capable of being used at low temperature and cold chain, wherein the solvent of the disinfectant is water, and the solute comprises alcohol, polyhexamethylene guanidine and trivalent silver ions. Specifically, in the disinfectant, the concentration of alcohol is 20-40%, the concentration of polyhexamethylene is 10-50 ppm, and the concentration of trivalent silver ions is 10-50 ppm. The disinfectant has excellent performance, is easy to dissolve in water at normal temperature, has no toxicity, extremely strong capability of killing bacteria, has broad spectrum, high efficiency and long-term bacteriostatic action, has no etching action and no corrosivity on various materials, does not freeze at the low temperature of-25-0 ℃, can still keep good performance, and does not influence the sterilization and disinfection effect.

On the basis, the invention also provides a preparation method of the disinfectant capable of being used in a low-temperature cold chain, which comprises the following steps:

A. mixing polyhexamethylene guanidine and water to obtain polyhexamethylene guanidine mother liquor with the concentration of 0.1-10%;

B. mixing trivalent silver ions with water to obtain a trivalent silver ion solution with the concentration of 0.01-0.5%;

C. uniformly mixing 1 part of polyhexamethylene guanidine mother solution, 1 part of trivalent silver ion solution, 200-500 parts of water and 100-200 parts of alcohol to obtain the disinfectant capable of being used in a low-temperature cold chain.

Preferably, in the step C, the water and the alcohol are added in the order of 200 to 500 parts of water and 200 to 500 parts of an 80% alcohol solution.

Preferably, in step A, 1 part of polyhexamethylene guanidine and 100 parts of water are mixed to obtain a 1% polyhexamethylene guanidine mother liquor.

Preferably, in step B, 0.5 parts of trivalent silver ions and 100 parts of water are mixed to obtain a 0.5% concentration solution of trivalent silver ions.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the disinfectant prepared by the invention does not freeze at the temperature of minus 25 ℃ to 0 ℃, has excellent performances of broad spectrum, long-acting, no toxicity and no harm at normal temperature and at the low temperature of minus 25 ℃ to 0 ℃, has extremely strong capability of killing bacteria, does not weaken the effect of killing the bacteria at the temperature of minus 25 ℃ to 0 ℃, and is simple and easy to prepare.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the term "concentration" refers to mass concentration. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

A. Mixing 1 part of polyhexamethylene guanidine and 100 parts of water to obtain 1% polyhexamethylene guanidine mother liquor;

B. mixing 0.5 part of trivalent silver ions and 100 parts of water to obtain a 0.5% trivalent silver ion solution;

C. 1 part of polyhexamethylene guanidine mother solution, 1 part of trivalent silver ion solution, 500 parts of water and 500 parts of 80% alcohol solution are uniformly mixed to obtain the disinfectant which can be used at low temperature and cold chain, the obtained disinfectant does not freeze at the temperature of minus 20 ℃, and the influenza virus killing rate can reach more than 93%.

Example 2

A. Mixing 1 part of polyhexamethylene guanidine and 100 parts of water to obtain 1% polyhexamethylene guanidine mother liquor;

B. mixing 0.5 part of trivalent silver ions and 100 parts of water to obtain a 0.5% trivalent silver ion solution;

C. 1 part of polyhexamethylene guanidine mother solution, 1 part of trivalent silver ion solution, 300 parts of water and 300 parts of 80% alcohol solution are uniformly mixed to obtain the disinfectant which can be used at low temperature and cold chain, the obtained disinfectant does not freeze at the temperature of minus 20 ℃, and the influenza virus killing rate can reach more than 90%.

Example 3

A. Mixing 1 part of polyhexamethylene guanidine and 100 parts of water to obtain 1% polyhexamethylene guanidine mother liquor;

B. mixing 0.5 part of trivalent silver ions and 100 parts of water to obtain a 0.5% trivalent silver ion solution;

C. 1 part of polyhexamethylene guanidine mother solution, 1 part of trivalent silver ion solution, 200 parts of water and 200 parts of 80% alcohol solution are uniformly mixed to obtain the disinfectant which can be used at low temperature and cold chain, the obtained disinfectant does not freeze at the temperature of minus 20 ℃, and the influenza virus killing rate can reach more than 99%.

The invention has the beneficial effects that: the disinfectant prepared by the invention does not freeze at the temperature of minus 25 ℃ to 0 ℃, has excellent performances of broad spectrum, long-acting, no toxicity and no harm at normal temperature and at the low temperature of minus 25 ℃ to 0 ℃, has extremely strong capability of killing bacteria, does not weaken the effect of killing the bacteria at the temperature of minus 25 ℃ to 0 ℃, and is simple and easy to prepare.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.