WO2022158722A1 - Method for chemically strengthening hollow glass bodies, hollow glass bodies chemically strengthened thereby, and high-strength lightweight plastic having same - Google Patents

Method for chemically strengthening hollow glass bodies, hollow glass bodies chemically strengthened thereby, and high-strength lightweight plastic having same Download PDF

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Publication number
WO2022158722A1
WO2022158722A1 PCT/KR2021/019096 KR2021019096W WO2022158722A1 WO 2022158722 A1 WO2022158722 A1 WO 2022158722A1 KR 2021019096 W KR2021019096 W KR 2021019096W WO 2022158722 A1 WO2022158722 A1 WO 2022158722A1
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Prior art keywords
hollow body
glass
glass hollow
chemically strengthened
chemically
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PCT/KR2021/019096
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French (fr)
Korean (ko)
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홍상현
진태규
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엘지전자 주식회사
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Publication of WO2022158722A1 publication Critical patent/WO2022158722A1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/007—Other surface treatment of glass not in the form of fibres or filaments by thermal treatment
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0075—Cleaning of glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/28—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds

Definitions

  • the present invention relates to a method for chemically strengthening a hollow glass body, a glass hollow body subjected to chemical strengthening treatment thereof, and a high-strength and lightweight plastic having the same.
  • plastic has a light specific gravity, excellent strength, and easy molding, so that it can be molded into any shape. Accordingly, plastics are used for covers of small electronic devices such as mobile terminals, portable game terminals, and portable portable players, PCs, televisions, various recording devices, radios, printers, copiers, facsimiles, and the like.
  • plastics There are many types of these plastics, and they are used as various plastics having excellent weather resistance, impact resistance, transparency, elasticity, toughness, etc. depending on the application.
  • the glass hollow body was damaged during the extrusion process with high pressure and temperature, and when the mold was injected, the surface temperature of the mold rapidly decreased and the plastic resin composition quickly hardened, resulting in damage to the glass hollow body due to pressure applied to the glass hollow body. .
  • Patent Document 1 KR Registered Patent Publication No. 10-1349745 (2014.01.13. Announcement)
  • An object of the present invention is a method of chemically strengthening a glass hollow body in which the surface of a glass hollow body is strengthened by a chemical strengthening treatment to prevent in advance that the glass hollow body is damaged and the weight reduction effect is reduced when the glass hollow body is used as a plastic additive;
  • An object of the present invention is to provide a glass hollow body that has been chemically strengthened and a high-strength lightweight plastic having the same.
  • an object of the present invention is to increase the surface density of the glass hollow body by replacing sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to change the surface density of the glass hollow body into a hard surface, thereby increasing the modulus by 10 to 40% It is to provide a method of chemically strengthening a hollow glass body whose hardness is increased by 2 to 7 times, a glass hollow body subjected to chemical strengthening thereof, and a high-strength and lightweight plastic having the same.
  • an object of the present invention is to provide a method for chemically strengthening a glass hollow body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa, a glass hollow body subjected to chemical strengthening, and a high-strength lightweight plastic having the same is to provide
  • the method for chemically strengthening a hollow glass body according to the present invention a glass hollow body subjected to chemical strengthening treatment thereof, and a high-strength lightweight plastic having the same have been previously reported that, when the glass hollow body is used as a plastic additive, the glass hollow body is damaged and the weight reduction effect is reduced. To prevent this, the surface of the glass hollow body was strengthened by chemical strengthening treatment.
  • the method for chemically strengthening a hollow glass body comprises the steps of (a) immersing a glass hollow body containing sodium ions in a potassium compound; (b) heating the glass hollow body immersed in the potassium compound, and performing chemical strengthening treatment by replacing sodium ions on the surface of the glass hollow body with potassium ions; (c) cooling the chemically strengthened glass hollow body by separating it from the potassium compound; and (d) dissolving the potassium compound remaining in the cooled glass hollow body in a solvent, filtering, and washing.
  • sodium ions present on the surface of the glass hollow body are replaced with potassium ions larger than sodium ions to increase the surface density of the glass hollow body to change to a hard surface, thereby increasing the modulus of 10 ⁇ increased by 40%, and the hardness was increased by 2-7 times.
  • the high-strength lightweight plastic according to the present invention uses a chemically strengthened glass hollow body in which the surface of a low specific gravity glass hollow body is strengthened by chemical strengthening treatment to change it into a hard surface as a plastic additive, resulting in rapid pressure and temperature There is no risk of damage to the glass hollow body even in the change.
  • the high-strength lightweight plastic according to the present invention is a chemically strengthened hollow glass body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa is added as a plastic additive in the plastic resin composition. , it becomes possible to realize ultra light weight while having high strength.
  • the modulus of the glass hollow body is 10 to 40 % is increased, and the hardness is increased by 2 to 7 times.
  • the chemically strengthened hollow glass body which has been changed to a hard surface by strengthening the surface of the low specific gravity glass hollow body by chemical strengthening treatment, as a plastic additive, glass even in rapid pressure and temperature changes There is no fear of damage to the hollow body.
  • the high-strength lightweight plastic according to the present invention is a chemically strengthened hollow glass body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa is added as a plastic additive in the plastic resin composition. , it becomes possible to realize ultra light weight while having high strength.
  • FIG. 1 is a plan view showing a chemically strengthened glass hollow body according to an embodiment of the present invention.
  • FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1 ;
  • FIG. 3 is a process flow chart showing a method for chemically strengthening a glass hollow body according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing a state in which a glass hollow body is immersed in a potassium compound.
  • FIG. 5 is a schematic view showing a state in which the glass hollow body is chemically strengthened by heating.
  • FIG. 1 is a plan view illustrating a chemically strengthened hollow glass body according to an embodiment of the present invention
  • FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1 .
  • the chemically strengthened glass hollow body 100 includes a glass hollow part 120 and a tempered glass part 140 .
  • the glass hollow part 120 has a hollow (H) disposed in the inner center. Accordingly, the glass hollow part 120 may have a hollow spherical shape.
  • the glass hollow part 120 is formed of a glass composition containing sodium ions.
  • the glass hollow part 120 may be formed of a glass composition including at least two or more of Na 2 O, SiO 2 , B 2 O 3 , K 2 O, and ZnO.
  • CaO, CuO, etc. may be further added to the glass composition.
  • the tempered glass portion 140 is formed in a shape surrounding the outside of the glass hollow portion (120). At this time, the surface of the tempered glass portion 140 is strengthened by a chemical strengthening treatment of heat treatment at a high temperature for a long time, and has a greater modulus and hardness than the glass hollow portion 120 .
  • the tempered glass unit 140 when the tempered glass unit 140 is chemically strengthened, some of the sodium ions (Na + ) are substituted with potassium ions 125 (K + ) to perform the chemical strengthening treatment.
  • sodium ions (Na + ) present on the surface of the glass hollow body 100 are substituted with potassium ions 125 larger than the sodium ions (Na + ), so that the surface density of the glass hollow body 100 is increased and a hard surface is changed to chemical strengthening process to configure the tempered glass portion 140 surrounding the outside of the glass hollow portion (120).
  • the surface of the glass hollow body is strengthened by chemical strengthening treatment to prevent in advance that the glass hollow body is damaged and the weight reduction effect is reduced. did it
  • the chemically strengthened glass hollow body according to the embodiment of the present invention replaces sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to increase the surface density of the glass hollow body to change to a hard surface
  • the modulus is increased by 10 to 40%, and the hardness is increased by 2 to 7 times.
  • the chemically strengthened glass hollow body according to an embodiment of the present invention has a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
  • the chemically strengthened glass hollow body according to an embodiment of the present invention can withstand rapid pressure when used as a plastic additive by changing the surface of the low specific gravity glass hollow body to a hard surface by strengthening it with chemical strengthening treatment. Therefore, there is no fear of damage to the glass hollow body even in rapid pressure and temperature changes.
  • the high-strength lightweight plastic includes a plastic resin composition and a chemically strengthened glass hollow body added to the plastic resin composition.
  • the chemically strengthened glass hollow body includes a glass hollow part having a hollow disposed in the inner center, and a tempered glass part surrounding the outside of the glass hollow part, and the tempered glass part is chemically strengthened by replacing some of sodium ions with potassium ions. processing takes place.
  • the chemically strengthened glass hollow body has a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
  • the chemically strengthened hollow glass body is added in an amount of 30 to 70 wt% based on 100 wt% of the total high-strength lightweight plastic.
  • the high-strength lightweight plastic according to the above-described embodiment of the present invention uses the chemically strengthened glass hollow body, which has been changed to a hard surface by strengthening the surface of the low specific gravity glass hollow body by chemical strengthening treatment, as a plastic additive. There is no fear of damage to the glass hollow body even under pressure and temperature changes.
  • the high-strength lightweight plastic according to an embodiment of the present invention is a chemically strengthened glass hollow body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa is added as a plastic additive in the plastic resin composition.
  • Hv hardness
  • FIG. 3 is a process flow chart showing a method for chemically strengthening a hollow glass body according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing a state in which the glass hollow body is immersed in a potassium compound
  • FIG. 5 is a schematic diagram showing a state in which the glass hollow body is chemically strengthened by heating.
  • the method for chemically strengthening a hollow glass body according to an embodiment of the present invention includes an immersion step (S110), a heating step (S120), a cooling step (S130), and a filtering and washing step (S140). .
  • the method for chemically strengthening a hollow glass body according to an embodiment of the present invention may further include a drying step (S150) performed after the filtering and washing steps (S140).
  • the glass hollow body containing sodium ions is immersed in the potassium compound.
  • the glass hollow body has a hollow disposed in the inner center. Accordingly, the glass hollow body has a hollow spherical shape.
  • a glass hollow body is formed of a glass composition containing sodium ions.
  • the hollow glass body may be formed of a glass composition including at least two or more of Na 2 O, SiO 2 , B 2 O 3 , K 2 O, and ZnO, but is not limited thereto.
  • CaO, CuO, etc. may be further added to the glass composition.
  • the immersion may be carried out by dipping the glass hollow body containing sodium ions into an immersion vessel filled with a potassium compound.
  • the potassium compound may be used without particular limitation as long as it is a compound containing potassium. More preferably, the potassium compound may include at least one of KNO 3 , KHSO 4 , K 2 SO 4 and KMnO 4 .
  • the glass hollow body immersed in the potassium compound is heated, and the sodium ions (Na + ) on the surface of the glass hollow body are replaced with potassium ions (K + ) to undergo chemical strengthening treatment.
  • the heating is preferably carried out at a high temperature above the melting point of the potassium compound and below the boiling point for a long time.
  • FIG. 4 a state in which a glass hollow body 100 containing sodium ions 125 is immersed in a potassium compound 200 is shown. At this time, sodium ions 125 are contained on the surface of the glass hollow body 100 , and potassium ions 145 are contained in the potassium compound 200 in a solution state.
  • the heating is preferably carried out at 320 ⁇ 420 °C for 3 ⁇ 12 hours, a more preferred temperature range may be 340 ⁇ 400 °C . If the heating temperature is less than 320° C. or the heating time is less than 3 hours, it may be difficult to properly exhibit the effect of the chemical strengthening treatment because the penetration of potassium ions 145 does not occur smoothly. Conversely, when the heating temperature exceeds 420° C. or the heating time exceeds 12 hours, the potassium compound may be volatilized due to excessive heat treatment, which is not preferable.
  • the chemically strengthened glass hollow body is separated from the potassium compound and cooled.
  • this step when the potassium compound is in a solution state, it is preferable to separate the chemically strengthened glass hollow body from the potassium compound and cool it by a water cooling method using water at room temperature of approximately 1 to 40°C.
  • the potassium compound remaining in the cooled glass hollow body is dissolved in a solvent, filtered and washed.
  • the remaining potassium compound may be washed by dissolving it in water as a solvent and performing filtering 2 to 4 times. Accordingly, the potassium compound remaining in the cooled glass hollow body is removed.
  • the washed chemically strengthened glass hollow body is dried.
  • drying is preferably carried out at 60 ⁇ 100 °C for 6 ⁇ 24 hours. If the drying temperature is less than 60° C. or the drying time is less than 6 hours, sufficient drying may not be achieved, so it may be difficult to properly exhibit the effect of improving modulus and hardness. Conversely, if the drying temperature exceeds 100° C. or the drying time exceeds 24 hours, it may act as a factor increasing only the process cost and time without further increasing the effect, so it is not economical.
  • the chemically strengthened glass hollow body according to an embodiment of the present invention produced by the above process (S110 to S150) is used as a plastic additive, the glass hollow body is damaged to prevent the weight reduction effect from being reduced in advance.
  • the surface of the hollow body was strengthened by chemical strengthening treatment.
  • the chemically strengthened glass hollow body manufactured by the method according to the embodiment of the present invention replaces sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to increase the surface density of the glass hollow body.
  • the modulus can be increased by 10-40%, and the hardness can be increased by 2-7 times.
  • the chemically strengthened glass hollow body manufactured by the method according to an embodiment of the present invention has a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
  • the chemically strengthened glass hollow body manufactured by the method according to the embodiment of the present invention is changed to a hard surface by strengthening the surface of the low specific gravity glass hollow body by chemical strengthening treatment. Since it can withstand the pressure, there is no fear that the glass hollow body is damaged even in a sudden pressure and temperature change.
  • a glass hollow body having a modulus of 3.8 GPa and a hardness of 0.12 GPa and containing sodium ions was immersed in a potassium nitrate (KNO 3 ) solution, and then the glass hollow body was heated at 400° C. for 4 hours to obtain sodium ions on the surface of the glass hollow body. was substituted with potassium ions to perform chemical strengthening treatment.
  • KNO 3 potassium nitrate
  • the chemically strengthened hollow glass body was separated from the potassium nitrate (KNO 3 ) solution and cooled by quenching with water at 15°C.
  • potassium nitrate (KNO 3 ) remaining in the cooled glass hollow body was dissolved in water and washed through filtering three times.
  • the separated glass hollow bodies were dried at 80° C. for 12 hours while stirring to prevent them from sticking to each other to prepare a chemically strengthened glass hollow body.
  • a chemically strengthened glass hollow body was prepared in the same manner as in Example 1, except that the glass hollow body was heated at 390° C. for 7 hours.
  • a glass hollow body having a modulus of 3.4 GPa and a hardness of 0.25 GPa and chemically strengthened was prepared in the same manner as in Example 1, except that a glass hollow body containing sodium ions was used.
  • a chemically strengthened glass hollow body was prepared in the same manner as in Example 3, except that the glass hollow body was heated at 380° C. for 8 hours.
  • Table 1 shows the results of evaluation of physical properties for the samples according to Examples 1 to 4.
  • the evaluation of the physical properties was indicated by measuring the modulus and hardness of the surfaces of the samples using the nanoindenter equipment.
  • the modulus increased by about 10 to 40%, and it can be seen that the hardness increased by about 2 to 7 times.

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Abstract

Disclosed are a method for chemically strengthening hollow glass bodies, hollow glass bodies chemically strengthened thereby, and high-strength lightweight plastic containing the hollow glass bodies, the risk of damage to the hollow glass bodies even in the event of rapid change in pressure or temperature being removed by use of, as a plastic additive, the chemically-strengthened hollow glass bodies of low specific gravity, the surface of which has been chemically strengthened to be hard.

Description

유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱Method for chemical strengthening of hollow glass body, chemically strengthened hollow glass body and high-strength lightweight plastic having the same
본 발명은 유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱에 관한 것이다.The present invention relates to a method for chemically strengthening a hollow glass body, a glass hollow body subjected to chemical strengthening treatment thereof, and a high-strength and lightweight plastic having the same.
일반적으로, 플라스틱은 비중이 가볍고, 강도가 뛰어나며, 성형이 용이하여 임의의 형상으로 성형이 가능하다. 이에 따라, 플라스틱은 모바일 단말, 휴대형 게임 단말, 휴대형 포터블 플레이어 등의 소형 전자기기, PC, 텔레비전, 각종 녹화 기기, 라디오, 프린터, 복사기, 팩시밀리 등의 덮개에 사용되고 있다.In general, plastic has a light specific gravity, excellent strength, and easy molding, so that it can be molded into any shape. Accordingly, plastics are used for covers of small electronic devices such as mobile terminals, portable game terminals, and portable portable players, PCs, televisions, various recording devices, radios, printers, copiers, facsimiles, and the like.
이러한 플라스틱에는 많은 종류가 있으며, 용도에 따라 내후성, 내충격성, 투명성, 탄성, 인성 등이 뛰어난 각종 플라스틱으로 활용되고 있다.There are many types of these plastics, and they are used as various plastics having excellent weather resistance, impact resistance, transparency, elasticity, toughness, etc. depending on the application.
최근에는 플라스틱의 경량화를 위해 내부가 빈 유리중공체를 플라스틱 첨가제로 사용하려는 시도가 있었다.Recently, an attempt has been made to use a hollow glass body as a plastic additive in order to reduce the weight of plastics.
그러나, 유리중공체를 플라스틱 첨가제로 사용할 시, 플라스틱 수지 조성물 내에 첨가되는 유리중공체가 파손되었을 때는 빈 공간이 없어지고 높은 비중의 불순물이 되는 문제점이 있었다.However, when the hollow glass body is used as a plastic additive, when the hollow glass body added in the plastic resin composition is damaged, there is a problem in that empty space is lost and impurities of high specific gravity are used.
특히, 압력과 온도가 높은 압출 과정에서 유리중공체가 파손되고, 사출될 시에는 금형의 표면 온도가 급격히 낮아지면서 플라스틱 수지 조성물이 빠르게 굳어 유리중공체에 압력이 가해져 유리중공체가 파손되는 결과를 초래하였다.In particular, the glass hollow body was damaged during the extrusion process with high pressure and temperature, and when the mold was injected, the surface temperature of the mold rapidly decreased and the plastic resin composition quickly hardened, resulting in damage to the glass hollow body due to pressure applied to the glass hollow body. .
이러한 유리중공체의 파손을 막기 위해서는 유리중공체의 모듈러스 및 경도를 향상시키는 것이 필요하다.In order to prevent the breakage of the glass hollow body, it is necessary to improve the modulus and hardness of the glass hollow body.
[선행기술문헌][Prior art literature]
[특허문헌][Patent Literature]
(특허문헌 1) KR 등록특허공보 제10-1349745호(2014.01.13. 공고)(Patent Document 1) KR Registered Patent Publication No. 10-1349745 (2014.01.13. Announcement)
본 발명의 목적은 유리중공체를 플라스틱 첨가제로 사용할 시, 유리중공체가 파손되어 경량화 효과가 저감되는 것을 미연에 방지하기 위해 유리중공체의 표면을 화학강화 처리로 강화시킨 유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱을 제공하는 것이다.An object of the present invention is a method of chemically strengthening a glass hollow body in which the surface of a glass hollow body is strengthened by a chemical strengthening treatment to prevent in advance that the glass hollow body is damaged and the weight reduction effect is reduced when the glass hollow body is used as a plastic additive; An object of the present invention is to provide a glass hollow body that has been chemically strengthened and a high-strength lightweight plastic having the same.
아울러, 본 발명의 목적은 유리중공체의 표면에 존재하는 나트륨 이온을 나트륨 이온보다 큰 칼륨 이온으로 치환시켜 유리중공체의 표면 밀도를 높여 단단한 표면으로 변화시키는 것에 의해, 모듈러스는 10 ~ 40% 증가시켰고, 경도는 2 ~ 7배 증가시킨 유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱을 제공하는 것이다.In addition, an object of the present invention is to increase the surface density of the glass hollow body by replacing sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to change the surface density of the glass hollow body into a hard surface, thereby increasing the modulus by 10 to 40% It is to provide a method of chemically strengthening a hollow glass body whose hardness is increased by 2 to 7 times, a glass hollow body subjected to chemical strengthening thereof, and a high-strength and lightweight plastic having the same.
또한, 본 발명의 목적은 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱을 제공하는 것이다.In addition, an object of the present invention is to provide a method for chemically strengthening a glass hollow body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa, a glass hollow body subjected to chemical strengthening, and a high-strength lightweight plastic having the same is to provide
본 발명의 목적들은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 본 발명의 다른 목적 및 장점들은 하기의 설명에 의해서 이해될 수 있고, 본 발명의 실시예에 의해 보다 분명하게 이해될 것이다. 또한, 본 발명의 목적 및 장점들은 특허 청구 범위에 나타낸 수단 및 그 조합에 의해 실현될 수 있음을 쉽게 알 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.
본 발명에 따른 유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱은 유리중공체를 플라스틱 첨가제로 사용할 시, 유리중공체가 파손되어 경량화 효과가 저감되는 것을 미연에 방지하기 위해 유리중공체의 표면을 화학강화 처리로 강화시켰다.The method for chemically strengthening a hollow glass body according to the present invention, a glass hollow body subjected to chemical strengthening treatment thereof, and a high-strength lightweight plastic having the same have been previously reported that, when the glass hollow body is used as a plastic additive, the glass hollow body is damaged and the weight reduction effect is reduced. To prevent this, the surface of the glass hollow body was strengthened by chemical strengthening treatment.
이를 위해, 본 발명에 따른 유리중공체 화학강화 방법은 (a) 나트륨 이온을 함유하는 유리중공체를 칼륨 화합물에 침지시키는 단계; (b) 상기 칼륨 화합물에 침지된 유리중공체를 가열하여, 상기 유리중공체 표면의 나트륨 이온을 칼륨 이온으로 치환시켜 화학강화 처리하는 단계; (c) 상기 화학강화 처리된 유리중공체를 칼륨 화합물로부터 분리하여 냉각하는 단계; 및 (d) 상기 냉각된 유리중공체에 잔류하는 칼륨 화합물을 용매에 녹여 필터링하고 세척하는 단계;를 포함한다.To this end, the method for chemically strengthening a hollow glass body according to the present invention comprises the steps of (a) immersing a glass hollow body containing sodium ions in a potassium compound; (b) heating the glass hollow body immersed in the potassium compound, and performing chemical strengthening treatment by replacing sodium ions on the surface of the glass hollow body with potassium ions; (c) cooling the chemically strengthened glass hollow body by separating it from the potassium compound; and (d) dissolving the potassium compound remaining in the cooled glass hollow body in a solvent, filtering, and washing.
아울러, 본 발명에 따른 유리중공체 화학강화 방법은 유리중공체의 표면에 존재하는 나트륨 이온을 나트륨 이온보다 큰 칼륨 이온으로 치환시켜 유리중공체의 표면 밀도를 높여 단단한 표면으로 변화시켜 모듈러스를 10 ~ 40% 증가시키고, 경도를 2 ~ 7배 증가시켰다.In addition, in the method for chemically strengthening a glass hollow body according to the present invention, sodium ions present on the surface of the glass hollow body are replaced with potassium ions larger than sodium ions to increase the surface density of the glass hollow body to change to a hard surface, thereby increasing the modulus of 10 ~ increased by 40%, and the hardness was increased by 2-7 times.
또한, 본 발명에 따른 고강도 경량 플라스틱은 저비중의 유리중공체의 표면을 화학강화 처리로 강화시켜 단단한 표면으로 변화시킨 화학강화 처리된 유리중공체를 플라스틱 첨가제로 사용하는 것에 의해, 급격한 압력 및 온도 변화에서도 유리중공체가 파손될 염려가 없게 된다.In addition, the high-strength lightweight plastic according to the present invention uses a chemically strengthened glass hollow body in which the surface of a low specific gravity glass hollow body is strengthened by chemical strengthening treatment to change it into a hard surface as a plastic additive, resulting in rapid pressure and temperature There is no risk of damage to the glass hollow body even in the change.
이 결과, 본 발명에 따른 고강도 경량 플라스틱은 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 화학강화 처리된 유리중공체가 플라스틱 수지 조성물 내에 플라스틱 첨가제로 첨가되는 것에 의해, 고강도를 가지면서도 초 경량화를 구현하는 것이 가능해질 수 있게 된다.As a result, the high-strength lightweight plastic according to the present invention is a chemically strengthened hollow glass body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa is added as a plastic additive in the plastic resin composition. , it becomes possible to realize ultra light weight while having high strength.
본 발명에 따르면, 유리중공체의 표면에 존재하는 나트륨 이온을 나트륨 이온보다 큰 칼륨 이온으로 치환시켜 유리중공체의 표면 밀도를 높여 단단한 표면으로 변화시키는 것에 의해, 유리중공체의 모듈러스는 10 ~ 40% 증가되고, 경도는 2 ~ 7배 증가된다.According to the present invention, by replacing sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to increase the surface density of the glass hollow body and change it to a hard surface, the modulus of the glass hollow body is 10 to 40 % is increased, and the hardness is increased by 2 to 7 times.
아울러, 본 발명에 따르면, 저비중의 유리중공체의 표면을 화학강화 처리로 강화시켜 단단한 표면으로 변화시킨 화학강화 처리된 유리중공체를 플라스틱 첨가제로 사용하는 것에 의해, 급격한 압력 및 온도 변화에서도 유리중공체가 파손될 염려가 없게 된다.In addition, according to the present invention, by using the chemically strengthened hollow glass body, which has been changed to a hard surface by strengthening the surface of the low specific gravity glass hollow body by chemical strengthening treatment, as a plastic additive, glass even in rapid pressure and temperature changes There is no fear of damage to the hollow body.
이 결과, 본 발명에 따른 고강도 경량 플라스틱은 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 화학강화 처리된 유리중공체가 플라스틱 수지 조성물 내에 플라스틱 첨가제로 첨가되는 것에 의해, 고강도를 가지면서도 초 경량화를 구현하는 것이 가능해질 수 있게 된다.As a result, the high-strength lightweight plastic according to the present invention is a chemically strengthened hollow glass body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa is added as a plastic additive in the plastic resin composition. , it becomes possible to realize ultra light weight while having high strength.
상술한 효과와 더불어 본 발명의 구체적인 효과는 이하 발명을 실시하기 위한 구체적인 사항을 설명하면서 함께 기술한다.In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.
도 1은 본 발명의 실시예에 따른 화학강화 처리된 유리중공체를 나타낸 평면도.1 is a plan view showing a chemically strengthened glass hollow body according to an embodiment of the present invention.
도 2는 도 1의 A 부분을 확대하여 나타낸 단면도.FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1 ;
도 3은 본 발명의 실시예에 따른 유리중공체 화학강화 방법을 나타낸 공정 순서도.3 is a process flow chart showing a method for chemically strengthening a glass hollow body according to an embodiment of the present invention.
도 4는 유리중공체를 칼륨 화합물에 침지시킨 상태를 나타낸 모식도.4 is a schematic view showing a state in which a glass hollow body is immersed in a potassium compound.
도 5는 유리중공체를 가열하여 화학강화시킨 상태를 나타낸 모식도.5 is a schematic view showing a state in which the glass hollow body is chemically strengthened by heating.
전술한 목적, 특징 및 장점은 첨부된 도면을 참조하여 상세하게 후술되며, 이에 따라 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 용이하게 실시할 수 있을 것이다. 본 발명을 설명함에 있어서 본 발명과 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 상세한 설명을 생략한다. 이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 도면에서 동일한 참조부호는 동일 또는 유사한 구성요소를 가리키는 것으로 사용된다.The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.
본 명세서에서 사용되는 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 출원에서, "구성된다" 또는 "포함한다" 등의 용어는 명세서 상에 기재된 여러 구성 요소들, 또는 여러 단계들을 반드시 모두 포함하는 것으로 해석되지 않아야 하며, 그 중 일부 구성 요소들 또는 일부 단계들은 포함되지 않을 수도 있고, 또는 추가적인 구성 요소 또는 단계들을 더 포함할 수 있는 것으로 해석되어야 한다.As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.
이하에서는, 본 발명의 몇몇 실시예에 따른 유리중공체 화학강화 방법 및 그 화학강화 처리된 유리중공체와, 이를 갖는 고강도 경량 플라스틱을 설명하도록 한다.Hereinafter, a method for chemically strengthening a hollow glass body according to some embodiments of the present invention, a glass hollow body subjected to chemical strengthening treatment thereof, and a high-strength lightweight plastic having the same will be described.
도 1은 본 발명의 실시예에 따른 화학강화 처리된 유리중공체를 나타낸 평면도이고, 도 2는 도 1의 A 부분을 확대하여 나타낸 단면도이다.1 is a plan view illustrating a chemically strengthened hollow glass body according to an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1 .
도 1 및 도 2를 참조하면, 본 발명의 실시예에 따른 화학강화 처리된 유리중공체(100)는 유리중공부(120) 및 강화유리부(140)를 포함한다.1 and 2 , the chemically strengthened glass hollow body 100 according to an embodiment of the present invention includes a glass hollow part 120 and a tempered glass part 140 .
유리중공부(120)는 내부 중심부에 배치되는 중공(H)을 구비한다. 이에 따라, 유리중공부(120)는 내부가 빈 구 형상을 가질 수 있다. 이러한 유리중공부(120)는 나트륨 이온을 함유하는 유리 조성물로 형성된다. 예를 들어, 유리중공부(120)는 Na2O, SiO2, B2O3, K2O 및 ZnO 중 적어도 2종 이상을 포함하는 유리 조성물로 형성될 수 있다. 아울러, 유리 조성물에는 CaO, CuO 등이 더 첨가되어 있을 수 있다.The glass hollow part 120 has a hollow (H) disposed in the inner center. Accordingly, the glass hollow part 120 may have a hollow spherical shape. The glass hollow part 120 is formed of a glass composition containing sodium ions. For example, the glass hollow part 120 may be formed of a glass composition including at least two or more of Na 2 O, SiO 2 , B 2 O 3 , K 2 O, and ZnO. In addition, CaO, CuO, etc. may be further added to the glass composition.
강화유리부(140)는 유리중공부(120)의 외측을 감싸는 형태로 형성된다. 이때, 강화유리부(140)는 높은 온도에서 장시간 동안 열처리하는 화학강화 처리에 의해 표면이 강화되어, 유리중공부(120)에 비하여 큰 모듈러스 및 경도를 갖는다.The tempered glass portion 140 is formed in a shape surrounding the outside of the glass hollow portion (120). At this time, the surface of the tempered glass portion 140 is strengthened by a chemical strengthening treatment of heat treatment at a high temperature for a long time, and has a greater modulus and hardness than the glass hollow portion 120 .
여기서, 강화유리부(140)는 화학강화 처리시, 나트륨 이온(Na+) 중 일부가 칼륨 이온(125)(K+)으로 치환되어 화학강화 처리가 이루어진다.Here, when the tempered glass unit 140 is chemically strengthened, some of the sodium ions (Na + ) are substituted with potassium ions 125 (K + ) to perform the chemical strengthening treatment.
즉, 칼륨 화합물에 침지된 유리중공체(100)를 칼륨 화합물의 융점 이상 ~ 끓는 점 이하의 높은 온도 조건으로 장시간 동안 가열하여 반응시키게 되면, 유리중공체(100) 표면의 나트륨 이온(Na+)이 칼륨 이온(125)으로 치환되는 것에 의해 화학강화 처리가 이루어진다.That is, when the glass hollow body 100 immersed in the potassium compound is heated and reacted for a long time under high temperature conditions above the melting point of the potassium compound and below the boiling point, sodium ions on the surface of the glass hollow body 100 (Na + ) Substitution with potassium ions 125 results in chemical strengthening treatment.
이에 따라, 유리중공체(100)의 표면에 존재하는 나트륨 이온(Na+)이 나트륨 이온(Na+)보다 큰 칼륨 이온(125)으로 치환되어 유리중공체(100)의 표면 밀도가 높아져 단단한 표면으로 변화되어 화학강화 처리가 이루어져 유리중공부(120)의 외측을 감싸는 강화유리부(140)를 구성하게 되는 것이다.Accordingly, sodium ions (Na + ) present on the surface of the glass hollow body 100 are substituted with potassium ions 125 larger than the sodium ions (Na + ), so that the surface density of the glass hollow body 100 is increased and a hard surface is changed to chemical strengthening process to configure the tempered glass portion 140 surrounding the outside of the glass hollow portion (120).
전술한 본 발명의 실시예에 따른 화학강화 처리된 유리중공체는 플라스틱 첨가제로 사용할 시, 유리중공체가 파손되어 경량화 효과가 저감되는 것을 미연에 방지하기 위해 유리중공체의 표면을 화학강화 처리로 강화시켰다.When the chemically strengthened glass hollow body according to the embodiment of the present invention described above is used as a plastic additive, the surface of the glass hollow body is strengthened by chemical strengthening treatment to prevent in advance that the glass hollow body is damaged and the weight reduction effect is reduced. did it
이와 같이, 본 발명의 실시예에 따른 화학강화 처리된 유리중공체는 유리중공체의 표면에 존재하는 나트륨 이온을 나트륨 이온보다 큰 칼륨 이온으로 치환시켜 유리중공체의 표면 밀도를 높여 단단한 표면으로 변화시키는 것에 의해, 모듈러스는 10 ~ 40% 증가되고, 경도는 2 ~ 7배 증가된다.As described above, the chemically strengthened glass hollow body according to the embodiment of the present invention replaces sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to increase the surface density of the glass hollow body to change to a hard surface By doing so, the modulus is increased by 10 to 40%, and the hardness is increased by 2 to 7 times.
이에 따라, 본 발명의 실시예에 따른 화학강화 처리된 유리중공체는 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는다.Accordingly, the chemically strengthened glass hollow body according to an embodiment of the present invention has a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
아울러, 본 발명의 실시예에 따른 화학강화 처리된 유리중공체는 저비중의 유리중공체의 표면을 화학강화 처리로 강화시켜 단단한 표면으로 변화시키는 것에 의해, 플라스틱 첨가제로 사용할 시 급격한 압력을 견딜 수 있으므로, 급격한 압력 및 온도 변화에서도 유리중공체가 파손될 염려가 없게 된다.In addition, the chemically strengthened glass hollow body according to an embodiment of the present invention can withstand rapid pressure when used as a plastic additive by changing the surface of the low specific gravity glass hollow body to a hard surface by strengthening it with chemical strengthening treatment. Therefore, there is no fear of damage to the glass hollow body even in rapid pressure and temperature changes.
한편, 본 발명의 실시예에 따른 고강도 경량 플라스틱은 플라스틱 수지 조성물과, 플라스틱 수지 조성물에 첨가된 화학강화 처리된 유리중공체를 포함한다.Meanwhile, the high-strength lightweight plastic according to an embodiment of the present invention includes a plastic resin composition and a chemically strengthened glass hollow body added to the plastic resin composition.
여기서, 화학강화 처리된 유리중공체는 내부 중심부에 중공이 배치된 유리중공부와, 유리중공부의 외측을 감싸는 강화유리부를 포함하며, 강화유리부는 나트륨 이온 중 일부가 칼륨 이온으로 치환되어 화학강화 처리가 이루어진다.Here, the chemically strengthened glass hollow body includes a glass hollow part having a hollow disposed in the inner center, and a tempered glass part surrounding the outside of the glass hollow part, and the tempered glass part is chemically strengthened by replacing some of sodium ions with potassium ions. processing takes place.
이러한 화학강화 처리된 유리중공체는 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는다.The chemically strengthened glass hollow body has a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
이때, 화학강화 처리된 유리중공체는 고강도 경량 플라스틱 전체 100 중량%에 대하여, 30 ~ 70 중량%로 첨가된다.At this time, the chemically strengthened hollow glass body is added in an amount of 30 to 70 wt% based on 100 wt% of the total high-strength lightweight plastic.
전술한 본 발명의 실시예에 따른 고강도 경량 플라스틱은 저비중의 유리중공체의 표면을 화학강화 처리로 강화시켜 단단한 표면으로 변화시킨 화학강화 처리된 유리중공체를 플라스틱 첨가제로 사용하는 것에 의해, 급격한 압력 및 온도 변화에서도 유리중공체가 파손될 염려가 없게 된다.The high-strength lightweight plastic according to the above-described embodiment of the present invention uses the chemically strengthened glass hollow body, which has been changed to a hard surface by strengthening the surface of the low specific gravity glass hollow body by chemical strengthening treatment, as a plastic additive. There is no fear of damage to the glass hollow body even under pressure and temperature changes.
이 결과, 본 발명의 실시예에 따른 고강도 경량 플라스틱은 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 화학강화 처리된 유리중공체가 플라스틱 수지 조성물 내에 플라스틱 첨가제로 첨가되는 것에 의해, 고강도를 가지면서도 초 경량화를 구현하는 것이 가능해질 수 있게 된다.As a result, the high-strength lightweight plastic according to an embodiment of the present invention is a chemically strengthened glass hollow body having a modulus of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa is added as a plastic additive in the plastic resin composition. As a result, it becomes possible to realize ultra light weight while having high strength.
이하 첨부된 도면을 참조하여 본 발명의 실시예에 따른 유리중공체 화학강화 방법에 대하여 설명하도록 한다.Hereinafter, a method for chemically strengthening a hollow glass body according to an embodiment of the present invention will be described with reference to the accompanying drawings.
도 3은 본 발명의 실시예에 따른 유리중공체 화학강화 방법을 나타낸 공정 순서도이다. 또한, 도 4는 유리중공체를 칼륨 화합물에 침지시킨 상태를 나타낸 모식도이고, 도 5는 유리중공체를 가열하여 화학강화시킨 상태를 나타낸 모식도이다.3 is a process flow chart showing a method for chemically strengthening a hollow glass body according to an embodiment of the present invention. In addition, FIG. 4 is a schematic diagram showing a state in which the glass hollow body is immersed in a potassium compound, and FIG. 5 is a schematic diagram showing a state in which the glass hollow body is chemically strengthened by heating.
도 3에 도시된 바와 같이, 본 발명의 실시예에 따른 유리중공체 화학강화 방법은 침지 단계(S110), 가열 단계(S120), 냉각 단계(S130) 및 필터링 및 세척 단계(S140)를 포함한다. 또한, 본 발명의 실시예에 따른 유리중공체 화학강화 방법은 필터링 및 세척 단계(S140) 이후에 실시되는 건조 단계(S150)를 더 포함할 수 있다.As shown in FIG. 3 , the method for chemically strengthening a hollow glass body according to an embodiment of the present invention includes an immersion step (S110), a heating step (S120), a cooling step (S130), and a filtering and washing step (S140). . In addition, the method for chemically strengthening a hollow glass body according to an embodiment of the present invention may further include a drying step (S150) performed after the filtering and washing steps (S140).
침지immersion
침지 단계(S110)에서는 나트륨 이온을 함유하는 유리중공체를 칼륨 화합물에 침지시킨다.In the immersion step (S110), the glass hollow body containing sodium ions is immersed in the potassium compound.
여기서, 유리중공체는 내부 중심부에 배치되는 중공을 구비한다. 이에 따라, 유리중공체는 내부가 빈 구 형상을 갖는다. 이러한 유리중공체는 나트륨 이온을 함유하는 유리 조성물로 형성된다. 예를 들어, 유리중공체는 Na2O, SiO2, B2O3, K2O 및 ZnO 중 적어도 2종 이상을 포함하는 유리 조성물로 형성될 수 있으나, 이에 제한되는 것은 아니다. 아울러, 유리 조성물에는 CaO, CuO 등이 더 첨가되어 있을 수 있다.Here, the glass hollow body has a hollow disposed in the inner center. Accordingly, the glass hollow body has a hollow spherical shape. Such a glass hollow body is formed of a glass composition containing sodium ions. For example, the hollow glass body may be formed of a glass composition including at least two or more of Na 2 O, SiO 2 , B 2 O 3 , K 2 O, and ZnO, but is not limited thereto. In addition, CaO, CuO, etc. may be further added to the glass composition.
본 단계에서, 침지는 나트륨 이온을 함유하는 유리중공체를 칼륨 화합물이 채워진 침지 용기 내에 딥핑하는 방식으로 실시될 수 있다.In this step, the immersion may be carried out by dipping the glass hollow body containing sodium ions into an immersion vessel filled with a potassium compound.
여기서, 칼륨 화합물은 칼륨을 함유하는 화합물이라면 특별히 제한 없이 사용될 수 있다. 보다 바람직하게, 칼륨 화합물은 KNO3, KHSO4, K2SO4 및 KMnO4 중 1종 이상을 포함할 수 있다.Here, the potassium compound may be used without particular limitation as long as it is a compound containing potassium. More preferably, the potassium compound may include at least one of KNO 3 , KHSO 4 , K 2 SO 4 and KMnO 4 .
가열heating
가열 단계(S120)에서는 칼륨 화합물에 침지된 유리중공체를 가열하여, 유리중공체 표면의 나트륨 이온(Na+)을 칼륨 이온(K+)으로 치환시켜 화학강화 처리한다.In the heating step (S120), the glass hollow body immersed in the potassium compound is heated, and the sodium ions (Na + ) on the surface of the glass hollow body are replaced with potassium ions (K + ) to undergo chemical strengthening treatment.
본 단계에서, 가열은 칼륨 화합물의 융점 이상 ~ 끓는 점 이하의 높은 온도에서 장시간 동안 실시하는 것이 바람직하다.In this step, the heating is preferably carried out at a high temperature above the melting point of the potassium compound and below the boiling point for a long time.
먼저, 도 4에 도시된 바와 같이, 나트륨 이온(125)을 함유하는 유리중공체(100)를 칼륨 화합물(200)에 침지시킨 상태가 나타나 있다. 이때, 유리중공체(100)의 표면에는 나트륨 이온(125)이 함유되어 있고, 용액 상태의 칼륨 화합물(200) 내에는 칼륨 이온(145)이 함유되어 있다.First, as shown in FIG. 4 , a state in which a glass hollow body 100 containing sodium ions 125 is immersed in a potassium compound 200 is shown. At this time, sodium ions 125 are contained on the surface of the glass hollow body 100 , and potassium ions 145 are contained in the potassium compound 200 in a solution state.
다음으로, 도 5에 도시된 바와 같이, 칼륨 화합물(200)에 침지된 유리중공체(100)를 높은 온도에서 장시간 동안 가열하는 열처리를 수행하게 되면, 유리중공체(100)의 표면에 존재하는 나트륨 이온(125)이 나트륨 이온(125)보다 큰 칼륨 이온(145)으로 치환되어 유리중공체(100)의 표면 밀도가 높아져 단단한 표면으로 변화되는 화학강화 처리가 이루어지게 된다.Next, as shown in FIG. 5 , when a heat treatment of heating the glass hollow body 100 immersed in the potassium compound 200 at a high temperature for a long time is performed, the presence on the surface of the glass hollow body 100 is Sodium ions 125 are replaced with potassium ions 145 that are larger than sodium ions 125, so that the surface density of the glass hollow body 100 is increased and chemical strengthening treatment is performed to change to a hard surface.
보다 구체적으로, 가열은 320 ~ 420℃에서 3 ~ 12시간 동안 실시하는 것이 바람직하고, 보다 바람직한 온도 범위로는 340 ~ 400℃를 제시할 수 있다. 가열 온도가 320℃ 미만이거나, 가열 시간이 3시간 미만일 경우에는 칼륨 이온(145)의 침투가 원활히 이루어지지 못하는 관계로 화학강화 처리 효과를 제대로 발휘하는데 어려움이 따를 수 있다. 반대로, 가열 온도가 420℃를 초과하거나, 가열 시간이 12시간을 초과할 경우에는 과도한 열처리로 인해 칼륨 화합물이 휘발될 우려가 있으므로, 바람직하지 못하다.More specifically, the heating is preferably carried out at 320 ~ 420 ℃ for 3 ~ 12 hours, a more preferred temperature range may be 340 ~ 400 ℃ . If the heating temperature is less than 320° C. or the heating time is less than 3 hours, it may be difficult to properly exhibit the effect of the chemical strengthening treatment because the penetration of potassium ions 145 does not occur smoothly. Conversely, when the heating temperature exceeds 420° C. or the heating time exceeds 12 hours, the potassium compound may be volatilized due to excessive heat treatment, which is not preferable.
냉각Cooling
냉각 단계(S130)에서는 화학강화 처리된 유리중공체를 칼륨 화합물로부터 분리하여 냉각한다.In the cooling step (S130), the chemically strengthened glass hollow body is separated from the potassium compound and cooled.
즉, 본 단계에서는 칼륨 화합물이 용액 상태일 때, 화학강화 처리된 유리중공체를 칼륨 화합물로부터 분리하여 대략 1 ~ 40℃의 상온의 물을 이용하는 수냉 방식으로 냉각하는 것이 바람직하다.That is, in this step, when the potassium compound is in a solution state, it is preferable to separate the chemically strengthened glass hollow body from the potassium compound and cool it by a water cooling method using water at room temperature of approximately 1 to 40°C.
필터링 및 세척filtering and washing
필터링 및 세척 단계(S140)에서는 냉각된 유리중공체에 잔류하는 칼륨 화합물을 용매에 녹여 필터링하고 세척한다. 이때, 잔류하는 칼륨 화합물은 용매인 물에 녹여 2 ~ 4회 필터링을 실시하는 것에 의해 세척이 이루어질 수 있다. 이에 따라, 냉각된 유리중공체에 잔류하는 칼륨 화합물이 제거된다.In the filtering and washing step (S140), the potassium compound remaining in the cooled glass hollow body is dissolved in a solvent, filtered and washed. At this time, the remaining potassium compound may be washed by dissolving it in water as a solvent and performing filtering 2 to 4 times. Accordingly, the potassium compound remaining in the cooled glass hollow body is removed.
건조dry
건조 단계(S150)에서는 세척된 화학강화 처리된 유리중공체를 건조한다. 여기서, 세척된 화학강화 처리된 유리중공체는 서로 붙지 않도록 서서히 교반하면서 건조하는 것이 바람직하다.In the drying step (S150), the washed chemically strengthened glass hollow body is dried. Here, it is preferable to dry the washed chemically strengthened glass hollow bodies while stirring slowly so that they do not stick to each other.
본 단계에서, 건조는 60 ~ 100℃에서 6 ~ 24시간 동안 실시하는 것이 바람직하다. 건조 온도가 60℃ 미만이거나, 건조 시간이 6시간 미만일 경우에는 충분한 건조가 이루어지지 못하여 모듈러스 및 경도 향상 효과를 제대로 발휘하는데 어려움이 따를 수 있다. 반대로, 건조 온도가 100℃를 초과하거나, 건조 시간이 24시간을 초과할 경우에는 더 이상의 효과 상승 없이 공정 비용 및 시간만을 증가시키는 요인으로 작용할 수 있으므로, 경제적이지 못하다.In this step, drying is preferably carried out at 60 ~ 100 ℃ for 6 ~ 24 hours. If the drying temperature is less than 60° C. or the drying time is less than 6 hours, sufficient drying may not be achieved, so it may be difficult to properly exhibit the effect of improving modulus and hardness. Conversely, if the drying temperature exceeds 100° C. or the drying time exceeds 24 hours, it may act as a factor increasing only the process cost and time without further increasing the effect, so it is not economical.
상기의 과정(S110 ~ S150)에 의해 제조되는 본 발명의 실시예에 따른 화학강화 처리된 유리중공체는 플라스틱 첨가제로 사용할 시, 유리중공체가 파손되어 경량화 효과가 저감되는 것을 미연에 방지하기 위해 유리중공체의 표면을 화학강화 처리로 강화시켰다.When the chemically strengthened glass hollow body according to an embodiment of the present invention produced by the above process (S110 to S150) is used as a plastic additive, the glass hollow body is damaged to prevent the weight reduction effect from being reduced in advance. The surface of the hollow body was strengthened by chemical strengthening treatment.
이와 같이, 본 발명의 실시예에 따른 방법으로 제조된 화학강화 처리된 유리중공체는 유리중공체의 표면에 존재하는 나트륨 이온을 나트륨 이온보다 큰 칼륨 이온으로 치환시켜 유리중공체의 표면 밀도를 높여 단단한 표면으로 변화시키는 것에 의해, 모듈러스는 10 ~ 40% 증가하고, 경도는 2 ~ 7배 증가될 수 있다.As such, the chemically strengthened glass hollow body manufactured by the method according to the embodiment of the present invention replaces sodium ions present on the surface of the glass hollow body with potassium ions larger than sodium ions to increase the surface density of the glass hollow body. By changing to a hard surface, the modulus can be increased by 10-40%, and the hardness can be increased by 2-7 times.
이에 따라, 본 발명의 실시예에 따른 방법으로 제조된 화학강화 처리된 유리중공체는 3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는다.Accordingly, the chemically strengthened glass hollow body manufactured by the method according to an embodiment of the present invention has a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
아울러, 본 발명의 실시예에 따른 방법으로 제조된 화학강화 처리된 유리중공체는 저비중의 유리중공체의 표면을 화학강화 처리로 강화시켜 단단한 표면으로 변화시키는 것에 의해, 플라스틱 첨가제로 사용할 시 급격한 압력을 견딜 수 있으므로, 급격한 압력 및 온도 변화에서도 유리중공체가 파손될 염려가 없게 된다.In addition, the chemically strengthened glass hollow body manufactured by the method according to the embodiment of the present invention is changed to a hard surface by strengthening the surface of the low specific gravity glass hollow body by chemical strengthening treatment. Since it can withstand the pressure, there is no fear that the glass hollow body is damaged even in a sudden pressure and temperature change.
실시예Example
이하, 본 발명의 바람직한 실시예를 통해 본 발명의 구성 및 작용을 더욱 상세히 설명하기로 한다. 다만, 이는 본 발명의 바람직한 예시로 제시된 것이며 어떠한 의미로도 이에 의해 본 발명이 제한되는 것으로 해석될 수는 없다.Hereinafter, the configuration and operation of the present invention will be described in more detail through preferred embodiments of the present invention. However, these are presented as preferred examples of the present invention and cannot be construed as limiting the present invention in any sense.
여기에 기재되지 않은 내용은 이 기술 분야에서 숙련된 자이면 충분히 기술적으로 유추할 수 있는 것이므로 그 설명을 생략하기로 한다.Content not described here will be omitted because it can be technically inferred sufficiently by those skilled in the art.
1. 시료 제조1. Sample Preparation
실시예 1Example 1
모듈러스 3.8GPa 및 경도 0.12GPa를 가지며, 나트륨 이온을 함유하는 유리중공체를 질산칼륨(KNO3) 용액에 침지시킨 후, 유리중공체를 400℃에서 4시간 동안 가열하여 유리중공체 표면의 나트륨 이온을 칼륨 이온으로 치환시켜 화학강화 처리를 실시하였다.A glass hollow body having a modulus of 3.8 GPa and a hardness of 0.12 GPa and containing sodium ions was immersed in a potassium nitrate (KNO 3 ) solution, and then the glass hollow body was heated at 400° C. for 4 hours to obtain sodium ions on the surface of the glass hollow body. was substituted with potassium ions to perform chemical strengthening treatment.
다음으로, 화학강화 처리된 유리중공체를 질산칼륨(KNO3) 용액으로부터 분리하여 15℃의 물로 급냉시켜 냉각하였다.Next, the chemically strengthened hollow glass body was separated from the potassium nitrate (KNO 3 ) solution and cooled by quenching with water at 15°C.
다음으로, 냉각된 유리중공체에 잔류하는 질산칼륨(KNO3)을 물에 녹여 3회 필터링을 통해 세척하였다.Next, potassium nitrate (KNO 3 ) remaining in the cooled glass hollow body was dissolved in water and washed through filtering three times.
다음으로, 분리된 유리중공체가 서로 붙지 않도록 교반하면서 80℃에서 12시간 동안 건조하여 화학강화 처리된 유리중공체를 제조하였다.Next, the separated glass hollow bodies were dried at 80° C. for 12 hours while stirring to prevent them from sticking to each other to prepare a chemically strengthened glass hollow body.
실시예 2Example 2
유리중공체를 390℃에서 7시간 동안 가열한 것을 제외하고는 실시예 1과 동일한 방법으로 화학강화 처리된 유리중공체를 제조하였다.A chemically strengthened glass hollow body was prepared in the same manner as in Example 1, except that the glass hollow body was heated at 390° C. for 7 hours.
실시예 3Example 3
모듈러스 3.4GPa 및 경도 0.25GPa를 가지며, 나트륨 이온을 함유하는 유리중공체를 이용한 것을 제외하고는 실시예 1과 동일한 방법으로 화학강화 처리된 유리중공체를 제조하였다.A glass hollow body having a modulus of 3.4 GPa and a hardness of 0.25 GPa and chemically strengthened was prepared in the same manner as in Example 1, except that a glass hollow body containing sodium ions was used.
실시예 4Example 4
유리중공체를 380℃에서 8시간 동안 가열한 것을 제외하고는 실시예 3과 동일한 방법으로 화학강화 처리된 유리중공체를 제조하였다.A chemically strengthened glass hollow body was prepared in the same manner as in Example 3, except that the glass hollow body was heated at 380° C. for 8 hours.
2. 물성 평가2. Physical property evaluation
표 1은 실시예 1 ~ 4에 따른 시료들에 대한 물성 평가 결과를 나타낸 것이다. 여기서, 물성 평가는 나노인덴터 장비를 이용하여 시료들의 표면에 대한 모듈러스 및 경도를 측정하여 나타내었다.Table 1 shows the results of evaluation of physical properties for the samples according to Examples 1 to 4. Here, the evaluation of the physical properties was indicated by measuring the modulus and hardness of the surfaces of the samples using the nanoindenter equipment.
[표 1][Table 1]
Figure PCTKR2021019096-appb-img-000001
Figure PCTKR2021019096-appb-img-000001
표 1에 도시된 바와 같이, 실시예 1 ~ 4에 따라 제조된 시료들의 경우, 화학강화 처리를 실시하기 전과 후의 모듈러스 및 경도 측정 값이 나타나 있다.As shown in Table 1, in the case of the samples prepared according to Examples 1 to 4, modulus and hardness measurement values before and after chemical strengthening treatment are shown.
이때, 실시예 1 ~ 4에 따라 제조된 시료들의 경우, 화학강화 처리 후, 모듈러스는 대략 10 ~ 40% 상승하였고, 경도는 대략 2 ~ 7배 상승한 것을 확인할 수 있다.At this time, in the case of the samples prepared according to Examples 1 to 4, after the chemical strengthening treatment, the modulus increased by about 10 to 40%, and it can be seen that the hardness increased by about 2 to 7 times.
위의 실험 결과를 토대로 알 수 있듯이, 실시예 1 ~ 4와 같이 유리중공체의 표면을 화학강화 처리하게 되면, 유리중공체의 표면에 존재하는 나트륨 이온이 나트륨 이온보다 큰 칼륨 이온으로 치환되어 유리중공체의 표면 밀도가 높아져 단단한 표면으로 변화되는 것에 의해, 모듈러스 및 경도가 크게 상승하는 것을 확인하였다.As can be seen based on the above experimental results, when the surface of the glass hollow body is chemically strengthened as in Examples 1 to 4, sodium ions present on the surface of the glass hollow body are substituted with potassium ions larger than sodium ions to free It was confirmed that the modulus and hardness were greatly increased by changing the surface density of the hollow body to a hard surface.
이상과 같이 본 발명에 대해서 예시한 도면을 참조로 하여 설명하였으나, 본 명세서에 개시된 실시 예와 도면에 의해 본 발명이 한정되는 것은 아니며, 본 발명의 기술사상의 범위 내에서 통상의 기술자에 의해 다양한 변형이 이루어질 수 있음은 자명하다. 아울러 앞서 본 발명의 실시 예를 설명하면서 본 발명의 구성에 따른 작용 효과를 명시적으로 기재하여 설명하지 않았을 지라도, 해당 구성에 의해 예측 가능한 효과 또한 인정되어야 함은 당연하다.As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in the present specification. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention are not explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.
[부호의 설명][Explanation of code]
100 : 유리중공체 120 : 유리중공부100: glass hollow body 120: glass hollow part
140 : 유리강화부 145 : 칼륨 이온140: glass reinforcement 145: potassium ion
H : 중공H: hollow
S110 : 침지 단계S110: immersion step
S120 : 가열 단계S120: heating stage
S130 : 냉각 단계S130: cooling stage
S140 : 필터링 및 세척 단계S140: filtering and washing steps
S150 : 건조 단계S150: drying stage

Claims (12)

  1. (a) 나트륨 이온을 함유하는 유리중공체를 칼륨 화합물에 침지시키는 단계; (a) immersing the glass hollow body containing sodium ions in a potassium compound;
    (b) 상기 칼륨 화합물에 침지된 유리중공체를 가열하여, 상기 유리중공체 표면의 나트륨 이온을 칼륨 이온으로 치환시켜 화학강화 처리하는 단계; (b) heating the glass hollow body immersed in the potassium compound, and performing chemical strengthening treatment by replacing sodium ions on the surface of the glass hollow body with potassium ions;
    (c) 상기 화학강화 처리된 유리중공체를 칼륨 화합물로부터 분리하여 냉각하는 단계; 및 (c) cooling the chemically strengthened glass hollow body by separating it from the potassium compound; and
    (d) 상기 냉각된 유리중공체에 잔류하는 칼륨 화합물을 용매에 녹여 필터링하고 세척하는 단계; (d) dissolving the potassium compound remaining in the cooled glass hollow body in a solvent, filtering and washing;
    를 포함하는 유리중공체 화학강화 방법.A glass hollow body chemical strengthening method comprising a.
  2. 제1항에 있어서,According to claim 1,
    상기 (a) 단계에서, In step (a),
    상기 유리중공체는 The glass hollow body
    Na2O, SiO2, B2O3, K2O 및 ZnO 중 적어도 2종 이상을 포함하는 유리 조성물로 형성된 유리중공체 화학강화 방법.A method of chemically strengthening a hollow glass body formed of a glass composition including at least two of Na 2 O, SiO 2 , B 2 O 3 , K 2 O, and ZnO.
  3. 제1항에 있어서,According to claim 1,
    상기 (a) 단계에서, In step (a),
    상기 칼륨 화합물은 The potassium compound is
    KNO3, KHSO4, K2SO4 및 KMnO4 중 1종 이상을 포함하는 유리중공체 화학강화 방법.KNO 3 , KHSO 4 , K 2 SO 4 A method of chemically strengthening a glass hollow body comprising at least one of KMnO 4 .
  4. 제1항에 있어서,According to claim 1,
    상기 (b) 단계에서, In step (b),
    상기 가열은 the heating is
    320 ~ 420℃에서 3 ~ 12시간 동안 실시하는 유리중공체 화학강화 방법.A method of chemically strengthening glass hollow bodies at 320 ~ 420℃ for 3 ~ 12 hours.
  5. 제1항에 있어서,According to claim 1,
    상기 (d) 단계 이후, After step (d),
    (e) 상기 세척된 화학강화 처리된 유리중공체를 건조하는 단계; (e) drying the washed chemically strengthened glass hollow body;
    를 더 포함하는 유리중공체 화학강화 방법.A glass hollow body chemical strengthening method further comprising a.
  6. 제5항에 있어서,6. The method of claim 5,
    상기 건조는 the drying
    60 ~ 100℃에서 6 ~ 24시간 동안 실시하는 유리중공체 화학강화 방법.A method of chemically strengthening a hollow glass body at 60 ~ 100℃ for 6 ~ 24 hours.
  7. 제5항에 있어서,6. The method of claim 5,
    상기 (e) 단계 이후, After step (e),
    상기 화학강화 처리된 유리중공체는 The chemically strengthened glass hollow body
    3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 유리중공체 화학강화 방법.A method of chemically strengthening a hollow glass body having a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
  8. 내부 중심부에 중공이 배치된 유리중공부; 및 A glass hollow part with a hollow disposed in the inner center; and
    상기 유리중공부의 외측을 감싸는 강화유리부;를 포함하며, and a tempered glass part surrounding the outside of the glass hollow part;
    상기 강화유리부는 나트륨 이온 중 일부가 칼륨 이온으로 치환되어 화학강화 처리가 이루어진 화학강화 처리된 유리중공체.A chemically strengthened glass hollow body in which the tempered glass part is chemically strengthened by replacing some of the sodium ions with potassium ions.
  9. 제8항에 있어서,9. The method of claim 8,
    상기 화학강화 처리된 유리중공체는 The chemically strengthened glass hollow body
    3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 화학강화 처리된 유리중공체.A chemically strengthened glass hollow body having a modulus (Modulus) of 3.5 to 5.5Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
  10. 플라스틱 수지 조성물; 및 plastic resin composition; and
    상기 플라스틱 수지 조성물에 첨가된 화학강화 처리된 유리중공체;를 포함하며, Including; chemically strengthened glass hollow body added to the plastic resin composition,
    상기 화학강화 처리된 유리중공체는 내부 중심부에 중공이 배치된 유리중공부와, 상기 유리중공부의 외측을 감싸는 강화유리부를 포함하며, 상기 강화유리부는 나트륨 이온 중 일부가 칼륨 이온으로 치환되어 화학강화 처리가 이루어진 고강도 경량 플라스틱.The chemically strengthened glass hollow body includes a glass hollow part having a hollow disposed in the inner center, and a tempered glass part surrounding the outside of the glass hollow part, wherein some of the sodium ions are substituted with potassium ions in the tempered glass part. High-strength lightweight plastic with reinforced treatment.
  11. 제10항에 있어서,11. The method of claim 10,
    상기 화학강화 처리된 유리중공체는 The chemically strengthened glass hollow body
    상기 고강도 경량 플라스틱 전체 100 중량%에 대하여, 30 ~ 70 중량%로 첨가된 고강도 경량 플라스틱.High-strength lightweight plastic added in an amount of 30 to 70% by weight based on 100% by weight of the total high-strength lightweight plastic.
  12. 제10항에 있어서,11. The method of claim 10,
    상기 화학강화 처리된 유리중공체는 The chemically strengthened glass hollow body
    3.5 ~ 5.5Ga의 모듈러스(Modulus) 및 0.5 ~ 1.0GPa의 경도(Hv)를 갖는 고강도 경량 플라스틱.High-strength lightweight plastic with a modulus of 3.5 to 5.5 Ga and a hardness (Hv) of 0.5 to 1.0 GPa.
PCT/KR2021/019096 2021-01-21 2021-12-15 Method for chemically strengthening hollow glass bodies, hollow glass bodies chemically strengthened thereby, and high-strength lightweight plastic having same WO2022158722A1 (en)

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KR900005177A (en) * 1988-09-23 1990-04-13 진 에이. 테난트 Car accelerometer
KR20110017086A (en) * 2009-08-13 2011-02-21 한일이화주식회사 A light-weight plastic resin composition adding metal pigment
KR101857880B1 (en) * 2016-11-21 2018-05-15 한국생산기술연구원 Structure including glass hollow microsphere
JP2018100209A (en) * 2016-12-16 2018-06-28 日本電気硝子株式会社 Spherical glass and method for producing glass rolling element
JP2019014614A (en) * 2017-07-05 2019-01-31 日本電気硝子株式会社 Manufacturing method of strengthened glass ball

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Publication number Priority date Publication date Assignee Title
KR101349745B1 (en) 2012-07-27 2014-01-13 한국기계연구원 Preparation method of aluminium film-coated hollow sphere filler and plastic resin comprising the same and molded product prepared therefrom

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Publication number Priority date Publication date Assignee Title
KR900005177A (en) * 1988-09-23 1990-04-13 진 에이. 테난트 Car accelerometer
KR20110017086A (en) * 2009-08-13 2011-02-21 한일이화주식회사 A light-weight plastic resin composition adding metal pigment
KR101857880B1 (en) * 2016-11-21 2018-05-15 한국생산기술연구원 Structure including glass hollow microsphere
JP2018100209A (en) * 2016-12-16 2018-06-28 日本電気硝子株式会社 Spherical glass and method for producing glass rolling element
JP2019014614A (en) * 2017-07-05 2019-01-31 日本電気硝子株式会社 Manufacturing method of strengthened glass ball

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