KR100620245B1 - Nano silver coated PCM capsule composite material - Google Patents

Abstract

The present invention relates to a phase change composite composition mainly composed of silver-coated PCM (phase change material) nanocapsule, and has a phase change function as well as a fixing performance and antimicrobial activity, wash fastness, synthesis (sweat, Moisture) fastness, daylight fastness, anti-odor, far-infrared generation function, anion generation function, etc. have more excellent characteristics than the general PCM composition.

[Configuration]

A material a mixed with 35 to 65% by weight of a nano binder in a silver-coated PCM nanocapsules with a charged weight; A material b in which 0.1 to 25% by weight of aroma microcapsules are added and mixed with respect to the weight of the material a; It is characterized in that 0.1 to 25% by weight of nano clay [Clay (MMT)] is added to and mixed with the material a and material b in combination to complete a gel.

Silver Nano Coating, PCM, Nano Clay, Nano Ceramic

Description

Phase change composite composition based on silver coated PCM (phase change material) capsule {Nano silver coated PCM capsule composite material}

The present invention relates to a phase change composite composition based on a silver-coated PCM (phase change material) capsule, which has a phase change function as well as fixing performance and antimicrobial activity, wash fastness, and comprehensive (sweat and moisture) fastness to the used product. , Daylight fastness, anti-odor, far-infrared generation function, anion-generating function, etc. has more excellent characteristics than the general PCM composition.

PCM (Phase Change Material) changes its phase from liquid state to solid state or solid state to liquid according to the external temperature change. The moment it enters the liquid state, it absorbs the surrounding heat. When the temperature change of low temperature and high temperature occurs, the phase change material dissipates heat at low temperature and absorbs heat at high temperature, so that any phase change material is combined. It protects things from severe temperature changes.

Therefore, in recent years, efforts have been widely attempted to apply phase-change material capsules to clothing including various fibers, shoes, building materials, optics, aerospace, etc. Many experiments have been conducted to apply to shoe uppers and fabrics for shoes.These fastening properties (fastening fixation strength) of the phase-change material nanocapsules are excellent, so that the fastness to washing and the fastness to sunlight and the general fastness to sweat and moisture are normal. I have a challenge to get to. At the same time, the company is focusing on the development of a phase-change composite composition that has excellent antibacterial and deodorizing functions and possesses far infrared ray generating function and negative ion generating function.

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Therefore, the present invention has a phase change function as compared to the conventional phase change material, as well as fixing performance and antibacterial function, washing fastness, overall (sweat and moisture) fastness, daylight fastness, deodorization function, far infrared ray generating function, negative ion generating function, etc. The problem is to provide this excellently improved phase change composite composition.

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The present invention for solving the above problems is configured as follows.

Composition according to the first embodiment: Material a and a mixture of 35 to 65% by weight of a nano-diameter binder (binder: binder) with respect to the weight of the silver-coated PCM capsule; A material b in which 0.1 to 25% by weight of an aromatic microcapsule is added to the material a and mixed with the weight of the material a; It is characterized in that the material b is mixed with a clay having a nano diameter of 0.1 to 25% by weight relative to the weight of the material b.

Composition according to Example 2: Material a mixed with 35-65% by weight of a nano-diameter binder (binder) based on the weight of the silver-coated PCM capsule; A material b in which 0.1 to 25% by weight of an aromatic microcapsule is added to the material a and mixed with the weight of the material a; A material c mixed with 0.1 to 25% by weight of nano-diameter clay with respect to the weight of the material b, mixed with the material b; To the material c, 0.1-25 wt% of tormaline-based nano-diameter ceramics are added to and mixed with the material c.

In the above, the nano-diameter binder (binder) is an oily or aqueous acrylic binder (binder) or an oily or aqueous polyurethane binder (binder) or an oily or aqueous rubber (rubber) binder (binder) Or an oily or aqueous latex-based binder (bonding agent), and the nano-diameter clay may be replaced with a nano-diameter layer silicate or a nano-diameter silica. It is done.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached photographs and tables and test reports.
First of all, the present invention provides two kinds of composite compositions, in which the diameter of the nano particles (binder) and the nano particles clay are used to firmly fix the aromatic microcapsules as well as the PCM capsule to the fabric. Do this. And the tourmaline-based ceramics are excellent in the far infrared generation function and negative ion generation function.

In the preparation of the composite composition of the present invention, since each material is introduced into the stirrer at room temperature and stirred, the special apparatus is not used, and the composition ratio of each material is important in the present invention. PCM capsules coated with silver having a diameter of nano, which is the main component of the present invention, have strong sterilization and antimicrobial properties, and have an odor removal function. When the composition of the present invention is applied to fibers, washing fastness, light fastness and overall fastness are not less than 30% superior to those of the conventional PCM composition, and the fixing ability of the PCM capsule is not less than 20% and at the same time, the phase change effect is 20. The experimental result of getting more than% favorable was obtained. Therefore, there is a big difference between simply using a general PCM capsule and silver powder, and using a silver-coated PCM capsule having a nano diameter of the present invention.

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Hereinafter, the experimental results using the composite composition of the present invention show that the first composite composition and the second composite composition have almost the same functions and effects, but the far infrared ray generating function and the anion generating function have the second composite composition as the first composite. It is about 30% higher than the composition. It should be noted that the far-infrared photographs presented below are based on the second composite composition. At the same time, the composite composition of the present invention uses the composite composition completed in the shape of a gel when applying a knife coating (or multi-coating, release paper coating, sticking thread coating) to fibers and the like. When the impregnation method is used, the composite composition and water of the present invention are mixed and used in a ratio of about 4: 1 to 5: 5.

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Application of the composite composition of the present invention to the Marymesh fabric through the impregnation method is a first micrograph, the second micrograph is applied to ordinary socks, the third microscope is applied to the conventional Arm band It is a photograph, and the 4th micrograph is applied to the Marymesh fabric by the coating method, and the 5th micrograph is applied to the Marymesh fabric by the multi-coating method. As shown in the micrograph, it can be seen that the PCM nanocapsules included in the composite composition of the present invention are fixed to the fiber in large quantities, which is due to the excellent fixing performance of the binders of the nano-diameter particles and the clay of the nano-diameter particles. Compared to the PCM composite composition, the fixed performance is improved by about 20%.

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Next, Table 1 is a result table of the present inventors directly wear and test the temperature change and humidity change after applying the composite composition of the present invention to the shoe upper and insole through the impregnation method or coating method to make the sneakers, Table 2 is After applying the general PCM composite composition to the upper and insole of the shoe by the impregnation method or coating method to make the sneakers, the inventors directly wear and test the temperature change and the humidity change. If you look at it, you wear a running shoe (invention called the sneaker of the present invention) and a sneaker applied with a general PCM composite composition (referred to as a general sneaker for convenience) at room temperature, run on a treadmill and run for 5 minutes. The internal temperature of was measured. As a result, the sneaker of the present invention initially had a toe temperature of 24.21 ° C., but the general sneaker was 21.15 ° C., and after 15 minutes of wearing, the sneaker of the present invention was 24.65 ° C., but the general sneaker was 28.72 ° C., and after wearing 30 In the minutes passed, the sneaker of the present invention was 31.08 ° C., but the general sneaker was 38.55 ° C. And when sitting in a chair without running in the state wearing sneakers, the temperature of the toe portion of the present invention after the lapse of 15 minutes was 30.41 ℃ but the general sneaker was 40.25 ℃. Thus, the composite composition of the present invention can be seen that the phase change action is definitely superior to the general PCM composition.

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Next, when running on a treadmill wearing a running shoe and a general running shoe of the present invention at room temperature, the internal humidity of the sneaker was measured after 5 minutes elapsed. It was 83.37%, and after 15 minutes, the sneaker of the present invention was 82.62%, but the general sneaker was 84.50%, and after 30 minutes, the sneaker of the present invention was 88.62%, but the general sneaker was 97.65%. On the other hand, when the state of sitting on a chair without running in the state wearing the sneakers, the humidity of the toe part after 5 minutes of the sneakers of the present invention was 86.97%, but the general sneakers was 91.80%. Thus, the composite composition of the present invention can be seen that the phase change action is definitely superior to the general PCM composition.

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Next, looking at the test report 1, the fiber to which the composite composition of the present invention is applied can be seen that the washing fastness is very good as 5, the friction fastness is also very excellent as 5, and the daylight fastness and sweat and moisture Compound fastness was also found to be very good as 4 to 5 for acidity and alkalinity. This is a copy of the test result certificate issued by the Korea Apparel Testing Institute to the inventors on August 26, 2004. As a result of requesting one point of clothing (top), the fastness of washing, friction, and overall fastness were the best. Is proved to be in a very good state because in addition to the binding strength of the nano-diameter particles of the binder in the composite composition of the present invention (Clay) of the nano-diameter particles to improve the fixing function to the fibers of the PCM capsule.

Next, the test report 2 is a test that the sterilization function is excellent as a result of the culture test of Staphylococcus aureus and Klebsiella pneumoniae to the fiber to which the composite composition of the present invention is applied It is a transcript and it can be seen that the sixth micrograph and the seventh micrograph support the fact that the silver component acted in the composite composition of the present invention.

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Next, examine Test Report 3, the first and second thermography photos. This is the result of applying the second composite composition of the present invention to the fiber and the measurement of the far infrared thermal image, Test Report 3 is a copy of the test report issued to the inventor of October 23, 2004 by Korea Institute of Far Infrared Evaluation. Looking at this, it can be seen that far-infrared rays are generated better in the garment to which the composite composition of the present invention is applied as compared to the general garment.

Then examine Test Report 4 and Table 3. This is a test report and an ion number measurement graph which test the number of ions generated by submitting the composite composition of the present invention to a nonwoven fabric having a width of 298 mm and a length of 211 mm to the Korea Apparel Testing and Research Institute. In view of this, the fiber or clothing to which the composite composition of the present invention is applied has an average number of ions generated even in a size of 298 mm in width and 211 mm in length, with an average number of ions detected in a pleasant natural environment (field, trail, garden, etc.). It is almost the same number. This is due to the comprehensive action of silver, ceramic, and clay of the composite composition of the present invention, but the ceramic, which is a particle of nano diameter, has a more important function.

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The present invention as described above, the main component is a silver-coated PCM (phase change material) capsule having a nano-diameter, and selected as an additional composition of a nano-diameter clay and a nano-diameter ceramic as a main component Poor phase change function derived from a phase change composition, as well as deterioration of sticking performance and antibacterial function, lowering fastness of washing, lowering fastness of sweat and moisture, lowering fastness of daylight, lowering far infrared ray generating function, anion There is a useful effect to excellently improve the problems, such as reduced generation function has a feature that can be practically applied to the production of various products.

Claims (4)

A material a in which 35-65 wt% of a nano-diameter binder (binder: binder) is added to and mixed with the weight of the silver-coated PCM capsule; A material b in which 0.1 to 25% by weight of an aromatic microcapsule is added to the material a and mixed with the weight of the material a; A phase change composite composition containing, as a main component, a silver-coated PCM capsule, characterized in that the material b is mixed with 0.1 to 25% by weight of a nano diameter clay to the weight of the material b. A material a mixed with 35 to 65% by weight of a nano-diameter binder (binder) based on the weight of the silver-coated PCM capsule; A material b in which 0.1 to 25% by weight of an aromatic microcapsule is added to the material a and mixed with the weight of the material a; A material c mixed with 0.1 to 25% by weight of nano-diameter clay with respect to the weight of the material b, mixed with the material b; A phase change composite composition mainly composed of silver-coated PCM capsules, characterized in that the material c was mixed by adding 0.1-25 wt% of tormaline-based nano diameter ceramics to the weight of the material c. . The nano-diameter binder (binder) according to claim 1 or 2 is an oily or aqueous acrylic binder (binder) or an oily or aqueous polyurethane binder (binder) or an oily or aqueous rubber (Rubber). A phase change composite composition based on a silver-coated PCM capsule, characterized in that it is selected from a) -based binder (binder) or an oily or aqueous latex binder (binder). 3. The silver-based PCM capsule according to claim 1, wherein the nano-diameter clay can be replaced with a nano-diameter layer silicate or a nano-diameter silica. 4. Phase change composite composition.