KR20190110806A - Master batch of graphene poly proplene fabric and graphene pp staple fiber using the master batch, and manufacturing method thereof - Google Patents

Abstract

The present invention includes a graphene PP short fiber for a yarn, consisting of 94 to 96 wt% of PP resin, 0.5 to 2 wt% of graphene material and 2.5 to 3.5 wt% of fine multi-porous particulate material in a particle size of 1 to 40 nm. The graphene PP short fiber has the ratio of the graphene material, the fine multi-porous particulate material and PP granules in 2 (graphene material):3 (multi-porous particulate material):5 (PP granules). The graphene PP short fiber for a yarn is composed of 88.5 to 93 wt% of PP resin together with source master batch composed of 0.5 to 2 wt% of graphene material, 2.5 to 3.5 wt% of fine multi-porous particulate material and 4 to 6 wt% of PP granules based on 100 wt% of the graphene PP short fiber for a yarn. By cutting the source master batch and PP resin into a short fiber form after melt extrusion and nozzle spinning, the graphene PP short fiber for a yarn is completed. The PP yarn is called dream fiber, but overcomes the problem of crystalline structure, which is difficult to penetrate external moisture, is hydrophobic, is almost non-dyeing and has poor weaving, thereby having good durability and fastness for dyeing and washability and containing graphene called dream material.

Description

MASTER BATCH OF GRAPHENE POLY PROPLENE FABRIC AND GRAPHENE PP STAPLE FIBER USING THE MASTER BATCH, AND MANUFACTURING METHOD THEREOF}

The present invention relates to a functional fiber raw material composition, in particular, polypropylene yarn (hereinafter referred to as PP yarn) called dream fiber together with graphene called dream material, The present invention relates to a sauce masterbatch that provides good fastness to washability and the like, and to spun graphene PP short fibers prepared by using the same, and a method of manufacturing the same.

These days polypropylene (PP) is called the dream fiber. PP is the lightest of all synthetic fibers, it is comfortable to wear because it does not generate static electricity, and its thermal conductivity is low, so it is excellent in heat retention and boasts optimal sweat and quick drying function.

However, these PP yarns have a completely crystalline structure and hydrophobicity due to the characteristics of the PP material, so that dyeing is not good, weaving and knitting are not good, and there is a problem in the production yield due to the lowering of the loom operation rate.

Graphene, which is being studied continuously these days, is also called a dream material. Graphene is stronger than steel, harder than diamond, lighter, transparent and flexible than almost any material, and it also has the characteristics of an ultrafast electrical conductor. In addition, graphene has the advantage that most materials do not pass through graphene except water vapor freely passing through the molecular mesh.

Graphite is a structure in which carbons are stacked in layers, arranged like honeycomb-shaped hexagonal nets, and one layer of graphite becomes graphene. Graphene has a very high physical and chemical stability with a thickness of 0.2 nm. Graphene has a number of advantages, but especially useful for absorbing carbon monoxide and nitrogen oxides in the atmosphere.

If graphene, which is a dream material, is contained in fiber yarn or fabric, but has fastness to withstand external abrasion environment or washing, the characteristics of graphene such as low temperature infrared ray, microvascular circulation promotion, tick It can give functions such as blocking and continuous cleanliness, excellent hygroscopicity, dryness, antistatic and skin beauty effect, and sun protection.

Especially, if the graphene is made of PP fabric or PP yarn, which is called dream fiber, fiber with good properties of PP material and good properties of graphene can be realized. You will get

Korean Patent Publication No. 10-1457521 "Fibre yarn coated with reduced graphene oxide and its manufacturing method"

Accordingly, an object of the present invention is to make a polypropylene yarn called dream fiber together with graphene called a dream material, while having a good fastness for durability, dyeing or washability, etc. The present invention provides a graphene PP short fiber and a method for producing the same.

The present invention according to the above object, in the graphene PP short fibers for spinning, PP resin 94 ~ 96% by weight, graphene material 0.5 ~ 2% by weight, microporous particles of 1 ~ 40nm particle size 2.5 ~ Graphene PP composed of 3.5% by weight of short fibers,

The graphene PP short fibers are; The ratio of graphene material, microporous particle material, and PP granules is 2 (graphene material): 3 (porous particle material): 5 (PP granules). The source masterbatch consisting of 0.5-2% by weight of graphene material, 2.5-3.5% by weight of fine porous particles, 4-6% by weight of PP granules, and 88.5-93% by weight of PP resin. The batch and PP resins are melt-extruded and cut into short fibers after nozzle spinning.

In addition, the present invention, in the method for producing graphene PP short fiber for spinning use, the ratio of the prepared liquid graphene material and the prepared solid microporous particles and PP granules is 2 (graphene material): 3 (polyporous particles). Substance): 5 (PP granule), but based on 100% by weight of graphene PP short fiber, 0.5 ~ 2% by weight graphene material, 2.5 ~ 3.5% by weight fine porous material, 4 ~ 6% by weight PP grain Consisting of 100-120 ℃ hot air mixing and drying at the same time to obtain a source masterbatch,

In order to obtain graphene PP short-fiber for spinning using the source masterbatch, 88.5 to 93% by weight of PP resin in pellet form and 7 to 11.5% by weight of source masterbatch (0.5 to 2% by weight of graphene material, porous particles) 2.5 ~ 3.5% by weight of material and 4 ~ 6% by weight of PP granules) are mixed in the melt extruder and heated together at 180 ~ 200 ℃ to melt them. It is characterized by the production of graphene PP short fibers for spinning use by cutting into post short fiber form.

In another aspect, the present invention, PP resin 94-96% by weight, graphene material 0.5-2% by weight, 1 to 40nm particle size for producing a graphene PP short fiber made of 2.5 to 3.5% by weight of the fine porous material Source masterbatch as a raw material,

The source masterbatch is composed of graphene material, microporous particle material, and PP grain ratio of 2 (graphene material): 3 (porous particle material): 5 (PP particle), Graphene material 0.5 to 2% by weight based on 100% by weight of fibers, 2.5 to 3.5% by weight of fine porous particles, characterized in that the composition is composed of 4 to 6% by weight of PP granules.

The present invention is a polypropylene yarn called a dream fiber, but as a crystalline structure to overcome the problems of external moisture penetration is difficult, hydrophobic, almost non-dyeability and poor weaving, so as to improve the durability and fastness to the durability or dyeing or washability, etc. Source masterbatch, which is a raw material that is compatible with the graphene, which is called dream material, is incorporated, and has a merit of obtaining graphene PP short fibers for spinning using the source masterbatch.

1 to 4 are micrographs of spun yarn spun with graphene PP short fibers according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

PP is the lightest of all synthetic fibers, it is comfortable to wear because it does not generate static electricity, and its thermal conductivity is low, so it is called a dream material because it has excellent heat retention and optimal sweat absorption and dryness, but PP material is a completely crystalline structure because of its characteristics. As it is hydrophobic, it is hardly dyed, smooth, and contains no moisture, so the thread breaks frequently, so weaving and knitting are not good. Therefore, it is difficult to apply PP yarn to clothing fibers. Although there have been some attempts to manufacture clothing fibers at high cost, the fastness (durability, wash fastness, etc.) is not good, so it is not easy to use or commercialize.

Therefore, in the present invention, while implementing the PP yarn in the form of staples that can be produced as a spun yarn so that the disadvantages of the PP material is complemented or significantly improved, low temperature infrared rays, microvascular circulation promotion, tick blocking and continuous Cleanliness, warmth, excellent hygroscopicity and dryness, anti-static and skin cosmetic effects, UV protection, etc. enable the penetration of graphene, also known as the dream material, into PP yarn to be durable.

To this end, in the present invention is to produce a graphene PP short fiber using a spun graphene material durable intrinsic in the PP component.

The graphene PP short fibers manufactured to make the yarn in the present invention is composed of PP resin 94-96% by weight, graphene material 0.5-2% by weight, fine porous material 2.5-3.5% by weight.

In the present invention, the raw material for producing the graphene PP short fibers is first produced in the form of a master batch, such a master batch for the raw material is defined as "source master batch". The reason for producing the source masterbatch is to ensure that the graphene material and the fine porous material are evenly distributed in the PP short fiber when the graphene PP short fiber is manufactured.

In the present invention, the fine porous particle material constituting the graphene PP short fibers, the graphene material, the fine porous material in the PP resin is 40 nm or less nanoparticles (1 ~ 40 nm) as the graphene material and PP yarn Evenly distributed in the inside, it can absorb the dyeing material of PP yarn or absorb moisture and can also absorb the graphene material.

Therefore, when the fine multi-porous particle material distributed in the PP yarn of the present invention contains water, it increases the frictional force of the PP yarn and plays a role of reducing thread breakage. In addition, when the dyeing process of the PP yarn of the present invention, the dye material molecules penetrate into the pore space of the microporous particle material distributed in the PP yarn, thereby increasing the saltability of the PP yarn, and the graphene material is finely distributed in the PP yarn. Penetration into the pore particle material makes the adhesion of the graphene material very strong.

In the present invention, the microporous particles are formed in the range of 2.5 to 3.5% by weight, and the composition range is minimized the frictional force and thread break required for spinning the PP yarn in the form of short fibers, including washing or impact fastness and dyeing fastness. The inventors confirmed that the fiber-related fastness is good, the coating adhesion at the time of preparation of the source masterbatch is good, and the dyeing expression of PP yarn is most appropriate.

And in the present invention, the graphene material called the dream material among the components constituting the graphene PP short fibers is composed of 0.5 to 2% by weight, in the present invention, if the graphene material is less than 0.5wt%, the inherent performance of graphene If the expression is difficult and exceeds 2wt%, the PP yarn to be implemented is changed to a black series, making it difficult to express the dyeing in the PP yarn.

In the present invention, in order to produce a fine use of spun graphene PP fibers and evenly distributed microporous particle material and graphene material, the ratio of the graphene material and the porous material and PP grains is 2 (Graphene material): 3 (Multi-pore particle material): 5 (PP granules) First, make a source materbatch.

The constituents of the source masterbatch comprise 0.5 to 2% by weight of graphene material, 2.5 to 3.5% by weight of fine porous particles, and 4 to 6% by weight of PP granules, from 100% by weight of graphene PP short fibers.

First, in order to fabricate a source masterbatch, a liquid graphene material and a solid microporous particle material are prepared respectively so that mutual fusion and dispersion are well performed.

Graphene materials are made of oxidized graphite to form graphene oxide and then reduce or partially reduce it, and then apply microwave to 0.34 nm in thickness and have an oxygen content of less than 10%. Pin flakes can be obtained, and a liquid graphene material is prepared by adding a dispersant or the like to a treating solvent.

Liquid graphene material can also be obtained by the coordination method of gene coordination, which obtains the fiber chain from the porous fiber in the core of the corn sack, binds to the metal atom, carbonizes it, inverts and purifies it to obtain biomass graphene, and treats it. It can be added to the liquid graphene material.

Solid microporous particulate material is a particulate material with micropores of the molecular size on the surface or inside of the particles. Porous alumina or porous silver is possible. As natural minerals, zeolite, cerium, sericite, janghoseok, and illite. It is possible. The microporous particulate material is prepared by pulverizing a porous natural mineral material or a porous metal material by a ball milling method or the like.

Prepare PP granules together with the liquid graphene material and microporous particulate material prepared in this way, and prepare a ratio of 2 (graphene material): 3 (porous particle material): 5 (PP granules) and rotate the rotary cylinder. Put it while mixing and perform hot air mixing and drying process to apply hot air temperature of 100 ~ 120 ℃.

Then, the PP granules are softened so that the fine porous particles and graphene materials penetrate or coat the surface and surface of the PP granules, but the moisture contained in the liquid graphene material is evaporated, so that the process moisture content is almost " 0 ". Hot air mixing and drying are performed as possible. After finishing the hot air mixing and drying process, the source master batch consisting of the graphene material, the porous material, and the PP grains have a weight ratio of 2 (graphene material): 3 (porous material): 5 (PP grain). Is completed.

When the source masterbatch is completed as described above, in the present invention to prepare a graphene PP short fiber using the source masterbatch.

In order to produce graphene PP short fibers, the present invention first feeds a pellet type PP resin of pure PP resin with a source masterbatch to a melt extruder.

More specifically, 88.5 to 93% by weight of the PP resin in pellet form and 7 to 11.5% by weight of the source masterbatch (0.5 to 2% by weight of graphene material, 2.5 to 3.5% by weight of porous particles, 4 to 6 PP grains). Weight%) into a melt extruder and mixed at the same time by heating to 180 ~ 200 ℃ to melt and spin a plurality of filament yarns through the spinning nozzles of the outlet formed with a plurality of nozzle holes. A plurality of spinning filaments are cooled through a cooling treatment unit such as a cooling water tank or a cooling air and cut in units of 40 to 42 mm to form short fibers. As a result, the graphene PP short fibers according to the present invention are completed.

The graphene PP short fibers thus prepared are spun to prepare a spun yarn, and the fabric can be woven using the spun yarn.

1 to 4 are micrographs of the spun yarn spun with graphene PP short fibers according to an embodiment of the present invention, Figure 1 is a spun yarn using graphene PP short fibers and Figure 2 is an enlarged view of FIG. 3 is an enlarged view of the head of the yarn of FIG. 1. 4 is a photograph of the surface of the single fiber filament yarn of the spun yarn.

Fabrics woven using the graphene PP short fibers of the present invention as described above, hygroscopicity items, antibacterial rate items, heavy metal items, odor items, wash fastness items and the following color fastness items, acid and sweat fastness items and According to the color fastness item, basic color fastness item, water resistance color fastness item, friction color fastness item, needle color fastness item, UV protection performance item, washing size change rate item, charge charge value before washing, etc. Good grades were obtained.

The graphene PP short fibers of the present invention are commercially available in the form of spun short fibers. When making a yarn, 10-50 water is preferable.

PP is the lightest of all synthetic fibers. (Weight 0.91) 51% lighter than polyester (weight 1.38) and 25% lighter than nylon (weight 1.14). Therefore, when wearing clothing made of spun yarn made of graphene PP short fiber whose PP is an address material, it can reduce the fatigue more than half of other materials and use PP as a lifesaving fiber by using lighter properties than water. .

In addition, graphene PP short fiber, which is a main material of PP material, has a relative dielectric constant of about 2.2, so it is comfortable to wear without generating static electricity (polyester dielectric constant 3.2).

In addition, the graphene PP short fibers, the main material of the PP material of the present invention boasts an optimal sweat absorption and quick-drying function. PP is a hydrophobic fiber with a water absorption rate close to zero, so it has excellent properties of sucking water and discharging water out of the fiber. When blended with cotton, sweat and moisture absorbed through cotton can be quickly evaporated to maintain a dry state at the same time, and at the same time, it has excellent thermal insulation with low thermal conductivity, thus enabling initial body temperature maintenance.

In addition, the graphene PP short fibers, the main material of the PP material of the present invention can implement the 'absorbent, quick drying' function without any additional process, it becomes an optimal comfort material. It also has a strong low temperature external function, which helps to improve skin standard temperature, expand capillaries, improve blood circulation, strengthen metabolism between tissues, communicate meridians, and boost immunity.

In addition, the graphene PP short fibers of the present invention has the following advantages because it contains a graphene material.

(1) Low temperature infrared rays, microvascular circulation promotion-Infrared rays with a wavelength of 5-14㎛ are good enough to be called "light source of life". It is effective in breaking down water molecules, improving blood circulation, promoting cell activation, and promoting metabolism. The graphene PP short fiber of the present invention of the present invention absorbs ultraviolet rays harmful to the human body, and converts it into the beneficial function of infrared rays. Bio Fiber has a room temperature of 20-35 ℃, 6-14㎛ wavelength, and absorbance of more than 88% of infrared rays.The strong low temperature external radiation function improves skin standard temperature, expands capillaries, improves blood circulation, budding between tissues. It helps to strengthen metabolism, meridians, and strengthen immunity.

(2) Mite blocking, continuous clean- Graphene PP short fibers of the present invention has excellent antibacterial function. When E. coli and Staphylococcus aureus were exposed to graphene, the stress of the graphene lamellar nanosheet periphery membrane penetrated directly into the bacterial cell membrane and caused the leakage of intracellular RNA (ribonucleic acid). . This started the study of graphene antibacterial.

The graphene PP short fiber of the present invention has an effect of reducing inflammation and bacterial resistance, and does not degrade bacterial resistance even after washing, and has a skin health promoting effect.

(3) Excellent hygroscopicity and dryness-The graphene PP short fibers of the present invention are excellent thermal conductors and have a heat conduction value of 5,000 W / (mK), rapidly dissipate thermal energy, and electrons are resistant to graphene penetration. The frictional heat generated during this process is minute. Since the graphene PP short fibers of the present invention utilizes these characteristics of graphene, the graphene PP short fibers quickly absorb moisture and sweat generated in the human skin and radiate heat into the air. Eco-friendly fiber makes skin breathable and gives comfort.

(4) Antistatic, skin beauty effect-The conductivity of graphene is 106s / cm, the best conductive material in the world, 100 times higher than the conductivity of the best silicon material in existence. The graphene PP short fiber of the present invention lowers the resistivity of the surface to quickly release the generated static charge and at the same time gives lubricity to the material surface to reduce the static index by reducing the friction index to maintain the balance of the normal potential difference of the skin It prevents skin allergic reactions and pigmentation and has the effect of skin care.

(5) UV protection-UV (UV) is an electromagnetic wave whose wavelength is shorter than visible light and longer than X-rays. It occupies 6% of solar spectrum and its wavelength range is 100nm-400nm. The effective wavelength absorbed by graphene is at 100nm-281nm. At the same time, the graphene's two-dimensional planar structure is another important element of its UV protection. The two-dimensional planar structure can more easily reflect the ultraviolet wavelength range (wavelength> 281 nm). Thus, the graphene PP short fibers of the present invention can block UV rays.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the claims and their equivalents.

Claims (3)

For spinning graphene PP short fibers,
Graphene PP short fibers composed of 94 to 96% by weight of PP resin, 0.5 to 2% by weight of graphene material, 2.5 to 3.5% by weight of fine porous material of 1-40 nm particle size,
The graphene PP short fibers are;
The ratio of graphene material, microporous particle material, and PP granules is 2 (graphene material): 3 (porous particle material): 5 (PP granules). Based on the source master batch consisting of 0.5-2% by weight of graphene material, 2.5-3.5% by weight of fine porous particles, 4-6% by weight of PP granules, 88.5-93% by weight of PP resin,
The graphene PP short fiber for spinning use, characterized in that the graphene PP short fiber for spinning use is completed by cutting the source masterbatch and the PP resin into a short fiber shape after melt extrusion and nozzle spinning.
In the method for producing spun graphene PP short fiber,
The ratio of the prepared liquid graphene material and the prepared solid microporous particle material to the PP granules is 2 (graphene material): 3 (porous particle material): 5 (PP granules), but is used for spinning. Source master batch by drying at the same time with hot air mixing at 100-120 ℃, consisting of 0.5 ~ 2% by weight of graphene material, 2.5 ~ 3.5% by weight of fine porous particles, 4 ~ 6% by weight of PP granules based on 100% by weight. Gained,
In order to obtain graphene PP short-fiber for spinning using the source masterbatch, 88.5 to 93% by weight of PP resin in pellet form and 7 to 11.5% by weight of source masterbatch (0.5 to 2% by weight of graphene material, porous particles) 2.5 ~ 3.5% by weight of material and 4 ~ 6% by weight of PP granules) are mixed in the melt extruder and heated together at 180 ~ 200 ℃ to melt them. A method of producing graphene PP short fibers for spinning, characterized in that to produce graphene PP short fibers for spinning by cutting into short fibers after death.
Source master as a raw material for producing graphene PP short fibers composed of 94 to 96% by weight of PP resin, 0.5 to 2% by weight of graphene material, and 2.5 to 3.5% by weight of fine porous particles of 1 to 40 nm particle size. Configure your deployment,
The source masterbatch is composed of graphene material, microporous particle material, and PP grain ratio of 2 (graphene material): 3 (porous particle material): 5 (PP particle), Source masterbatch, characterized in that consisting of 0.5 to 2% by weight of graphene material, 2.5 to 3.5% by weight of fine porous material, 4 to 6% by weight of PP granules based on 100% by weight of fibers.

Images