KR102430308B1 - Life jacket with enhanced warmth based on survival swimming assistance - Google Patents

Abstract

Disclosed is a life jacket with enhanced warmth based on survival swimming assistance, comprising: a vest body which is worn on the upper body of a wearer and includes an outer lining and an inner lining made of a waterproof material; a heat generating body which is accommodated in a storage space formed between the outer lining and the inner lining, and generates heat by a gas; and a pump which injects gas into the storage space. The life jacket of the present invention enhances the warmth of the life jacket worn by a person during a survival swimming training for preventing water accidents that occur every year, enables socially disadvantaged individuals, such as infants, children, and the elderly, who are learning survival swimming to learn more easily, and improves the effectiveness of maintaining body temperature in the water.

Description

Life jacket with enhanced warmth based on survival swimming assistance

The present invention relates to a life jacket with enhanced warmth based on a survival swimming aid, and in more detail, it can be worn by socially disadvantaged people such as infants, adolescents, and the elderly when learning survival swimming, and at the same time, by strengthening the thermal insulation function It relates to a life jacket that prevents hypothermia and prevents secondary accidents that may occur in the water.

In general, life jackets protect the safety of users from various maritime accidents that are likely to occur during maritime activities such as fishing boats, ships, fishing, marine leisure sports, maritime work, safety personnel, etc. By wearing it on the upper body, it can float even if it falls into the water, protecting precious lives.

On the other hand, in the case of a drowning accident at sea, it is investigated that among the drowned drowned, they were not wearing a life jacket. Most of them avoided wearing it because of the wearability and poor activity.

Here, looking briefly at the life jacket according to the prior art, the vest is constructed so that it can be worn on the upper body of the body, and a light buoyancy material is put inside the vest, or the gas launcher of the inflatable life jacket made of an air tube is obtained and obtained. At the same time, it is designed to automatically inflate by injecting gas (air) into the air tube.

As a prior art for such a life jacket, Korean Patent Registration No. 10-1182957 discloses a 'life jacket in which an expansion tube and a buoyancy material are combined'.

Disclosed is a life jacket that is comfortable to wear, has a simple structure, and is easy to separate and wash an inflation tube. The life jacket is fixedly coupled to a part of the inner edge of each of the front plates and one edge of the cover along the nape edge of the back plate, and a portion of the outer edge of each of the front plates and the other side of the cover in a portion crossing the front and back plates a tube accommodating part having an edge detachably coupled, a shell coupled along an edge in a portion of the front plate excluding the part on which the cover is mounted, and an entrance formed in a portion forming a boundary with the cover; And both ends are accommodated in the tube receiving portion, and the remaining portion is received along a channel formed by the cover and the front plate and the back plate includes an expansion tube covered with the cover.

However, in the case of such a conventional life jacket, when an actual accident occurs while wearing a life jacket and in contact with water for a long time, the body becomes hypothermic due to a water temperature lower than body temperature, and it may be difficult to perform normal activities. In the case of life jackets, there is a limitation in that it is difficult to practically help prevent hypothermia.

Therefore, in order to solve the above-mentioned problems, there is a need to develop a life jacket that can assist in survival swimming and can prevent hypothermia that may occur in the water.

The main object of the present invention is to provide a life jacket capable of preventing secondary accidents that may occur in the water by strengthening the thermal insulation function to prevent hypothermia in the water.

Another object of the present invention is to increase heat generation and heat retention.

Another object of the present invention is to provide a composition that can maximize heat retention.

In order to achieve the above object, a life jacket with enhanced warmth based on the survival swimming aid according to the present invention. It is worn on the upper body of the wearer, the vest body comprising an outer shell and an inner shell made of a waterproof material; A heating element that is accommodated in the receiving space formed between the outer shell and the endothelium, and is heated by a gas; and a pump for injecting gas into the accommodation space.

Furthermore, the heating element is characterized in that it comprises iron powder, activated carbon powder, sodium chloride.

In addition, the surface of the activated carbon powder, aluminosilicate nanoparticles and characterized in that the heat-reinforcing agent comprising aragonite (aragonite) is coated.

The life jacket with enhanced warmth based on the survival swimming aid of the present invention,

1) Infants and adolescents learning survival swimming can learn survival swimming more easily by strengthening the warmth of the life jacket that can be worn during survival swimming education to prevent water accidents that occur every year. and at the same time to increase the effect of maintaining body temperature during sleep,

2) The composition of the heating element makes it possible to heat and keep warm, so that the keeping function can be maintained for a long time.

3) It has the effect of strengthening the thermal insulation of the heating element through a thermal insulation enhancer with excellent thermal insulation and heat shielding properties without impairing the continuous heating function.

1 is a conceptual diagram showing a life jacket of the present invention.
Figure 2 is a conceptual view showing the life jacket of the present invention from another angle.
Figure 3 is a side cross-sectional view of the life jacket of the present invention.
Figure 4 is a conceptual diagram showing the structure of the pump.
Figure 5 is a flow chart showing the steps of manufacturing the thermal insulation strengthening agent.
6 is a flow chart showing the steps of preparing a texture improving agent.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numbers in each figure refer to like components.

Figure 1 is a conceptual diagram showing the life jacket of the present invention, Figure 2 is a conceptual diagram showing the life jacket of the present invention from another angle.

Referring to FIGS. 1 and 2 , the life jacket with enhanced warmth based on the survival swimming aid of the present invention is characterized in that it includes a vest body 100 and a heating element 200 , and a pump 300 .

The vest body 100 is composed of a waterproof material and includes an outer skin 110 exposed to the exterior, and an inner skin 120 that comes into contact with the wearer's body. The pair of front plates 101 are combined at positions corresponding to the shoulder and waist of the wearer to constitute one complete vest that can be generally worn.

Therefore, in the case of such a vest body 100, it can be said that it has the configuration of a general vest worn on the upper body of the wearer, where the outer shell 110 and the inner shell 120 are made of a waterproof material, at this time preferably the outer shell ( 110) and the endothelium 120 may be made of synthetic fiber cloth or the like, but a waterproof coating may be applied to the surface thereof.

Alternatively, the outer shell 110 and the inner shell 120 may be made of a resin material to be waterproof, or the outer shell 110 and the inner shell 120 are each made of a laminated structure of a fiber material and a waterproof material. In other words, it is possible to implement waterproofness so that water does not flow into the space, that is, the receiving space between the outer shell 110 and the endothelium 120 .

Here, since there is no limit to the size in which the receiving space 130 is formed, when the receiving space 130 at a level capable of accommodating gas between the outer shell 110 and the endothelium 120 is formed, both can be the receiving space 130 . have. The accommodating space 130 may be formed in both the back plate 102 and the front plate 101, and may be basically formed in the waist region of the front plate 101, but the accommodating space ( 130) may be formed.

In other words, the receiving space 130 is basically formed in the waist portion of the front plate 101, and the shoulder portion of the front plate 101, furthermore, the back plate through the corresponding receiving space 130 and the internal communication hole 132. (102) up to the receiving space 130 may be formed to enable mutual inner cylinder.

At this time, the pump 300 to be described below preferably communicates with the receiving space located at the waist of the front plate 101, and therefore, when gas is injected, the life jacket of the present invention is the waist of the front plate 101 -> the front plate 101 of the shoulder region -> can be expanded in the order of the back plate 102.

In addition, since it is said that the front plate 101 is provided as a pair, the accommodation space 130 may be formed in the waist portion of the pair of front plates 101, respectively, and the pump 300 and the heating element 200 may be provided respectively. can That is, the heating element 200 may be provided in the receiving space 130 between the outer shell 110 and the inner shell 120 at the waist portion of the pair of front plates 101, respectively, and the pump 300 is also provided as a pair. Gas may be injected into each accommodation space 130 . However, in the embodiment, only an example of the accommodation space 130 provided in one front plate 101 is illustrated.

Figure 3 is a side cross-sectional view of the life jacket of the present invention.

3, the vest body 100 including the outer skin 110 and the endothelium 120 is provided with an accommodation space 130 between the outer skin 110 and the endothelium 120, at this time receiving The heating element 200 may be included in the space 130 . In this case, the heating element 200 may be preferably formed in a pad shape.

In addition, since gas can be accommodated in the internal accommodation space 130 of the vest body 100 by the pump 300 injecting gas into the accommodation space 130, and the heating element 200 is heated by the gas, Expansion and heat generation of the accommodation space 130 may be made at the same time.

Here, the type of gas injected by the pump 300 is not limited, so that any one of air, carbon dioxide, and oxygen or not mentioned gas is accommodated in the accommodation space 130 by the pump 300 to inflate the life jacket. As a result, the wearer wearing the life jacket can maintain stable breathing even when sleeping.

In addition, the heating element 200 preferably has a pad shape and may mean that a granular material having a heating function is filled in the pad, and this heating element 200 preferably includes iron powder, activated carbon powder, and sodium chloride. can do.

In other words, the heating element 200 is made of a fiber material and can be considered to be filled with pyrogenic particles including iron powder, activated carbon powder, and sodium chloride inside a pouch pack having micro-holes formed on the surface, which is similar to a conventional shaking hot pack. It can also be thought of as a structure.

4 is a conceptual diagram showing the structure of the pump.

Referring to FIG. 4 , the gas injected from the pump 300 may preferably be air, and the air basically contains oxygen. Therefore, the iron powder contained in the heating element 200 is oxidized by the oxygen injected by the pump 300 to generate heat, and furthermore, to promote the oxidation of the iron powder through sodium chloride, and at the same time, the activated carbon powder It goes without saying that the heat can be maintained for a long time.

In addition, the pump 300 is capable of injecting gas into the inner accommodation space 130 of the life jacket, and injects gas into the accommodation space 130 through the injection port 131 that communicates with the accommodation space 130 . can Here, the pump 300 may be operated by at least one of a manual operation and an automatic operation, and the operation method is not limited.

Although not shown in the drawings for the detailed structure of the pump 300, the pump 300 may basically include a case 310, a lever 320, a rod 330, and a spray module 340, and additionally It may also include an expandable member 350 .

The case 310 may have a housing accommodating the injection module 340 while forming the exterior of the pump 300 , and a handle on which the lever 320 is mounted may be disposed on the other side. A rod 330 for pressing the injection module 340 by the lever 320 may be accommodated in the handle of the case 310 , and the handle of the case 310 has an injection hole 131 connected to the receiving space 130 . may be disposed, the injection port 131 and the injection module 340 are connected, and the gas injected from the injection module 340 by the pressure of the lever 320 is injected into the receiving space 130 through the injection hole 131 . can be Meanwhile, the water expansion member 350 may be disposed between the lever 320 and the rod 330 .

The wearer can manually operate the pump 300 by pulling the lever 320, and also allow the water expandable member 350 to expand as a certain time elapses after the wearer's acquisition, and the expanded water expandable member ( Of course, it is also possible to automatically operate the pump 300 by allowing the 350 to pressurize the rod. Therefore, the life jacket of the present invention can maintain the body temperature of the wearer regardless of the wearer's consciousness.

According to the life jacket with enhanced thermal insulation based on the survival swimming aid of the present invention, it is possible to strengthen the warmth of the life jacket that can be worn during survival swimming training that can prevent water accidents that occur every year to learn survival swimming. By enabling socially disadvantaged people such as infants, adolescents and the elderly to more easily learn survival swimming and at the same time increase the effect of maintaining body temperature at sleep, hypothermia can be prevented and secondary accidents that may occur due to hypothermia can be prevented. let it be

Furthermore, it is said that the heating element 200 of the present invention preferably includes activated carbon powder to maintain thermal insulation.

At this time, the thermal insulation enhancing agent is characterized in that it includes aluminosilicate nanoparticles and aragonite. The aluminosilicate nanoparticles are a substance obtained by substituting a part of silicon constituting the silicate with aluminum, and are natural in the form of minerals. It is known to exist in many It is known to form a heat-insulating film on the surface when included in the heat-reinforcing agent, so it can contribute to increasing the heat-insulating property of the heating element to increase the heat-retaining property.

Aragonite is one of the representative carbonate minerals along with calcite. It has a colorless transparent or white translucent color and has a luster like glass. Since it is a carbonate, it shows a high level of strength, and when coated on the surface of the activated carbon powder, the activated carbon powder is excessively atomized due to the air rapidly injected from the pump, preventing the thermal insulation from being deteriorated.

The thermal insulation enhancer containing such aluminosilicate nanoparticles and aragonite is excellent in thermal insulation and includes the aluminosilicate nanoparticles and aragonite that exhibit thermal insulation to improve the thermal insulation and thermal insulation properties of the heating element 200, The effect of maintaining an appropriate level of particle size by preventing excessive atomization of the heating active ingredients contained in the heating element 200, that is, iron powder, activated carbon powder, and sodium chloride as the gas is rapidly injected by the pump 300 have

Furthermore, the thermal insulation enhancer may further include an additional composition in addition to this, and this will be described as follows.

5 is a flowchart showing the steps of manufacturing a thermal insulation strengthening agent.

Referring to FIG. 5 , the thermal insulation strengthening agent of the present invention is to be manufactured through a step of preparing a first dispersion (S11), a step of preparing a second dispersion (S12), and a step of completing the thermal insulation strengthening agent (S13). can

(S11) preparing a first dispersion

First, 15 to 20 parts by weight of aluminosilicate nanoparticles, 10 to 15 parts by weight of aragonite, 20 to 40 parts by weight of 10, 11-epoxyundecenoyl triglyceride and 20 to 40 parts by weight of bisphenol A diglycidyl ether A first dispersion is prepared by mixing parts by weight.

As described above, aluminosilicate nanoparticles form a fine insulating film on the surface of the activated carbon powder to provide excellent thermal insulation effect, thereby increasing the thermal insulation of the heating element.

Aragonite is a material that can increase the strength of a heating element and maximize heat retention by showing a high level of strength and flexibility compared to general structural materials.

10, 11-epoxyundecenoyl triglyceride is an ester containing three terminal epoxy groups, which has excellent reactivity and is a material that can be expected to improve the toughness and adhesion of the manufactured thermal insulation enhancer, furthermore, bisphenol A diglyceride Of course, it is possible to prevent the coating film from being easily broken because the cidyl ether is mixed with the treatment to have an appropriate level of flexibility.

In addition, when 10 and 11-epoxyundecenoyl triglyceride and bisphenol A diglycidyl ether are mixed in the same weight ratio, they harden and form a porous film. , of course, it is possible to maintain the gas retention function (oxygen retention function for oxidation of iron powder) based on the high porosity of the activated carbon powder.

(S12) preparing a second dispersion

Next, 80 to 90 parts by weight of the first dispersion, 5 to 15 parts by weight of tetraethylammonium hydroxide, and 3 to 10 parts by weight of a thermoplastic olefin (TPO: Thermoplastic Olefin) are mixed to prepare a second dispersion. do.

Tetraethylammonium hydroxide has excellent mutual repulsion, so various components, especially aluminosilicate nanoparticles and aragonite particles, do not agglomerate or sink in the heat-retaining agent solution, and have a stable dispersion. added to make it

Thermoplastic Olefin (TPO) is a product with improved functions of polypropylene. It has excellent heat resistance, impact resistance, and processability, so it is being used in various fields including automobile interior and exterior materials, electrical and electronic products, and industrial building materials. It is a polymer. It exhibits high rigidity, heat resistance, high impact property, high workability, and further heat insulation, and the thermal insulation enhancer plays a role in improving the rigidity, heat resistance, workability, and heat insulation of the cured film.

(S13) Step of completing the thermal insulation strengthening agent

Finally, 85 to 95 parts by weight of the second dispersion, 1 to 10 parts by weight of pearlite, 1 to 10 parts by weight of 2-ethyl hexanol, and bisphenol A glycerolate (bisphenol-A) glycerolate) is mixed with 1 to 10 parts by weight of the texture improving agent to complete the thermal insulation enhancer.

Perlite is a material made into a porous material by crushing perlite or obsidian and then baking it at around 1,000℃. It has excellent thermal insulation and heat-shielding properties, and when added to a heat-reinforcing agent, it has an effect of increasing heat retention.

2-Ethylhexanol is a material used for silk processing of fabrics, dyes, resins, solvents for oil, plasticizers, and wetting agents, and is added as a plasticizer in the warming agent of the present invention. That is, the processability of the thermoplastic olefin contained in the thermal insulation strengthening agent is improved and a homogeneous film can be formed on the surface of the activated carbon powder.

Bisphenol A glycerolate, an active ingredient of the texture improving agent, is a material that is used as a raw material for manufacturing plastics and is also used as an antioxidant for plastics. Insulation strengthening agent It is added to improve the flexibility of the coating film and at the same time improve the film strength.

Therefore, according to such a thermal insulation strengthening agent, the resin substrate can form a porous coating film when cured, so that the gas retention function in the pores of the activated carbon powder contained in the heating element, and the continuous heating function through this are not impaired, and furthermore, the high strength on the surface It is coated with a furnace to prevent excessive particle formation of the coating film and even the activated carbon powder even when pressure is applied from the outside, and at the same time, various compositions with excellent thermal insulation and heat shielding properties are included to provide a function to increase the thermal insulation of the heating element.

Hereinafter, the evaluation results of Examples and Comparative Examples will be compared and described in order to describe the physical properties of the thermal insulation enhancer of the present invention. Examples are microfiber fillers coated with the thermal insulation enhancing agent of the present invention, and Comparative Examples are known microfibers.

[Example 1]

20 g of aluminosilicate nanoparticles, 10 g of aragonite, 35 g of 10, 11-epoxyundecenoyl triglyceride, and 35 g of bisphenol A diglycidyl ether were mixed to prepare 100 g of a first dispersion.

85 g of the prepared first dispersion, 10 g of tetraethylammonium hydroxide, and 5 g of a thermoplastic olefin were mixed to prepare 100 g of a second dispersion.

Finally, 90 g of the prepared second dispersion, 5 g of perlite, 2 g of 2-ethylhexanol, and 3 g of bisphenol A glycerolate were mixed to prepare 100 g of a thermal insulation enhancer.

Thus, 15.3 wt% of aluminosilicate nanoparticles, 7.65 wt% of aragonite, 26.775 wt% of 10,11-epoxyundecenoyl triglyceride, 26.775 wt% of bisphenol A diglycidyl ether, 9 wt% of tetraethylammonium hydroxide %, 4.5 wt% of thermoplastic olefin, 5 wt% of perlite, 2 wt% of 2-ethylhexanol, and 3 wt% of bisphenol A glycerolate were prepared in 100 g of a thermal insulation enhancer.

After preparing 100 g of activated carbon powder and repeatedly spraying the thermal insulation strengthening agent composition of Example 1 to form a coating film on the surface, a granular composition containing the activated carbon powder and the thermal insulation strength strengthening agent composition in a weight ratio of 10:1 was prepared, and then it was 30 cm × It was injected into a pouch of 30 cm and the thermal insulation was measured.

[Example 2]

10 g of a thermal insulation enhancer was prepared by mixing 5 g of aluminosilicate nanoparticles and 5 g of aragonite.

100 g of activated carbon powder is prepared, and the thermal insulation strengthening agent composition of Example 2 is mixed to prepare a granular composition containing activated carbon powder and a thermal insulation strength strengthening agent composition in a weight ratio of 10:1, and then injecting it into a pouch of 30 cm × 30 cm measured.

[Comparative example]

100 g of activated carbon powder was injected into a pouch of 30 cm × 30 cm, and heat retention was measured.

In addition, the thermal insulation evaluation evaluated here was evaluated as follows based on the KSK 0560 constant temperature method.

- Outside temperature: 20±2℃

- Heating element temperature: 36±0.5℃

- Specimen size: 45cm×45cm

Table 1 is a table showing the heat retention test results. Warmth (%) Example 1 94.8 Example 2 93.2 comparative example 80.2

Referring to Table 1, it can be seen that the activated carbon powder coated with the thermal insulation enhancer of the present invention has superior thermal insulation properties compared to the activated carbon powder that is not coated with the thermal insulation strength enhancer.

Further, referring to the comparison results between Examples 1 and 2, it can be confirmed that the composition of Example 1 containing aluminosilicate nanoparticles and aragonite as well as more diverse compositions exhibited a higher level of thermal insulation.

In addition, the texture improving agent may further include an additional composition in addition to bisphenol A glycerolate. The steps for preparing such a texture improving agent will be described with the drawings as follows.

6 is a flowchart illustrating the steps of preparing a texture improving agent.

Referring to FIG. 6 , the texture improving agent of the present invention is prepared through the steps of preparing the primary mixture (S21), preparing the secondary mixture (S22), and completing the texture improving agent (S23). characterized.

(S21) preparing a first mixture

A first mixture is prepared by mixing 10 to 20 parts by weight of bisphenol A glycerolate, 15 to 25 parts by weight of ethylene glycol, and 60 to 80 parts by weight of ethanol.

Bisphenol A glycerolate is a substance added to improve film flexibility and film strength at the same time as described above, and ethanol is added as a solvent of the primary mixture.

Ethylene glycol is added to increase the preservation of the coating film by forming a film with a smoother surface in the coating film of the thermal insulation enhancer to which the texture improving agent of the present invention is added, and by lowering friction on the surface, and further increases the flexibility of the film. It supports the function of bisphenol A glycerolate by performing a role of imparting it.

(S22) preparing a secondary mixture

Subsequently, 75 to 90 parts by weight of the first mixture, 5 to 15 parts by weight of polymethylsilsesquioxane, and 5 to 10 parts by weight of hydroxyethylpiperazine ethane sulfonic acid (HEPES) The parts are mixed to prepare a secondary mixture.

Polymethylsilsesquioxane is a high molecular compound having a main skeleton by siloxane bonds, and has water repellency and waterproof properties, and weather resistance and chemical resistance properties. Therefore, when added to the texture improving agent, it serves to enhance the weather resistance of the thermal insulation enhancer, thereby preventing moisture from being absorbed in the heating element, more preferably, the activated carbon powder, which is easily permeated by moisture.

Hydroxyethylpiperazineethanesulfonic acid is added to the secondary mixture as a buffering agent, and when added as a texture improving agent, plays a role in adjusting the pH of the thermal insulation strengthening agent composition.

(S23) Step of completing the texture improving agent

Finally, 85 to 95 parts by weight of the secondary mixture, 3 to 10 parts by weight of trisodium ethylenediamine disuccinate, and 1 to 5 parts by weight of phenyltrichlorosilane are mixed to complete the texture improving agent do.

Trisodium ethylenediamine disuccinate is a kind of chelating agent, and it serves to inhibit the reaction with metal ions. carry out

Phenyltrichlorosilane (phenyltrichlorosilane) has excellent thermal properties and solubility, and has excellent thermal insulation properties and has the ability to enhance heat retention through thermal insulation properties.

Therefore, through the addition of such a texture improving agent, the thermal insulation enhancer is coated to modify the surface of the cured film to increase the flexibility of the film and to control friction on the surface. It provides the effect of preventing penetration and at the same time increasing the warmth.

As described so far, the configuration and action of the life jacket with enhanced warmth based on the survival swimming aid according to the present invention are expressed in the above description and drawings, but this is only an example and the idea of the present invention is reflected in the above description and drawings. It is not limited, and various changes and modifications are possible without departing from the technical spirit of the present invention.

100: vest body 101: front plate
102: back plate 110: outer shell
120: inner shell 130: receiving space
131: inlet 132: hole
200: heating element 300: pump
310: case 320: lever
330: rod 340: injection module
350: water expansion member

Claims (6)

As a life jacket with enhanced warmth based on survival swimming assistance,
It is worn on the upper body of the wearer, the vest body comprising an outer shell and an inner shell made of a waterproof material;
A heating element that is accommodated in the receiving space formed between the outer shell and the endothelium and is heated by a gas, comprising iron powder, activated carbon powder, and sodium chloride;
Including; a pump for injecting gas into the receiving space;
The surface of the activated carbon powder is coated with a heat-reinforcing agent,
The thermal insulation enhancer,
15 to 20 parts by weight of aluminosilicate nanoparticles, 10 to 15 parts by weight of aragonite, 20 to 40 parts by weight of 10,11-epoxyundecenoyl triglyceride, and 20 to 40 parts by weight of bisphenol A diglycidyl ether mixing to prepare a first dispersion;
Preparing a second dispersion by mixing 80 to 90 parts by weight of the first dispersion, 5 to 15 parts by weight of tetraethylammonium hydroxide, and 3 to 10 parts by weight of thermoplastic olefin (TPO) ;
85 to 95 parts by weight of the second dispersion, 1 to 10 parts by weight of pearlite, 1 to 10 parts by weight of 2-ethyl hexanol, and bisphenol-A glycerolate Prepared through; mixing 1 to 10 parts by weight of a texture improving agent containing
The texture improving agent,
Preparing a first mixture by mixing 10 to 20 parts by weight of bisphenol A glycerolate, 15 to 25 parts by weight of ethylene glycol, and 60 to 80 parts by weight of ethanol;
75 to 90 parts by weight of the first mixture, 5 to 15 parts by weight of polymethylsilsesquioxane, and 5 to 10 parts by weight of hydroxyethylpiperazine ethane sulfonic acid (HEPES) mixing to prepare a secondary mixture;
Completing the texture improving agent by mixing 85 to 95 parts by weight of the secondary mixture, 3 to 10 parts by weight of trisodium ethylenediamine disuccinate, and 1 to 5 parts by weight of phenyltrichlorosilane ; Characterized in that manufactured through, a life jacket with enhanced warmth. The method of claim 1,
The pump is
A life jacket with enhanced warmth, characterized in that it is operated by at least one of a manual operation and an automatic operation. delete delete delete delete

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