WO2018177111A1 - Fibre de verre à haute résistance, thermo-isolante, insonorisée et ultrafine pour l'aviation et procédé de fabrication associé - Google Patents

Fibre de verre à haute résistance, thermo-isolante, insonorisée et ultrafine pour l'aviation et procédé de fabrication associé Download PDF

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Publication number
WO2018177111A1
WO2018177111A1 PCT/CN2018/078554 CN2018078554W WO2018177111A1 WO 2018177111 A1 WO2018177111 A1 WO 2018177111A1 CN 2018078554 W CN2018078554 W CN 2018078554W WO 2018177111 A1 WO2018177111 A1 WO 2018177111A1
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WO
WIPO (PCT)
Prior art keywords
glass fiber
insulating
fiber cotton
sound
ultra
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/078554
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English (en)
Chinese (zh)
Inventor
郭茂
秦大江
翟福强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Zisun Technology Corp Ltd
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Chongqing Zisun Technology Corp Ltd
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Publication of WO2018177111A1 publication Critical patent/WO2018177111A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/06—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres
    • C03B37/065—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres starting from tubes, rods, fibres or filaments
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/10—Non-chemical 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
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • 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
    • C03C13/00—Fibre or filament compositions
    • 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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/42—Coatings containing inorganic materials

Definitions

  • the invention belongs to the technical field of functional composite materials, and relates to a high-strength heat-insulating and sound-insulating ultra-fine glass fiber cotton for aviation and a preparation method thereof.
  • Patent No. CN1173028 a method for preparing a lightweight fiberglass wool felt for sound insulation, discloses melting a glass raw material into a molten glass in a kiln furnace at 1300 ° C to 1700 ° C, and the molten glass passes through 1100 to 1300 ° C. After the channel is clarified and homogenized, it flows into the high-speed rotating centrifugal disk in the form of a glass liquid stream, and firstly passes through a high-speed high-temperature vertical air flow of 1000 ° C to 1400 ° C to form a glassy fiber, and then is subjected to a cold air flow of 5 to 30 ° C for low temperature treatment. A centrifuge glass fiber of 1 to 4 ⁇ m was formed.
  • Publication No. CN104372526 is a super-layer ultra-fine glass fiber cotton felt and a preparation method thereof, and discloses a glass wool felt which is composed of ultra-fine glass fiber cotton and a binder, and has a super-layer composite structure.
  • the glass wool felt is made of a single centrifugal head and a reciprocating rubber track.
  • the flow rate of the glass liquid stream in a single centrifugal head is 40-70 kg/h.
  • the invention can be applied to the refrigeration, heat preservation, train transportation, concert hall, etc. Soundproofed place.
  • the ultrafine glass fiber cotton felt disclosed in the above two invention patents is prepared by centrifugation; compared with the flame method, the fiber prepared by centrifugation has a larger diameter, and the centrifugal fiber diameter is 2.5 to 4 ⁇ m, and the flame method
  • the fiber diameter is 0.5-2.5 ⁇ m; the strength of the fiber prepared by centrifugation is poor, resulting in poor mechanical strength of the prepared ultra-fine glass fiber cotton; the glass fiber cotton prepared by centrifugation has a smaller aperture ratio than the glass fiber cotton prepared by the flame method, resulting in
  • the prepared ultra-fine glass fiber cotton has low sound transmission loss and high thermal conductivity;
  • the adhesive has not been processed by a processing aid including a water repellent, a curing agent, a coupling agent and a flexible agent, resulting in glass fiber and organic
  • the bonding strength of the adhesive is poor, resulting in poor mechanical strength of the prepared ultrafine glass fiber cotton; therefore, how to prepare a fiber with a fine diameter and a uniform fiber diameter distribution; a high strength
  • an object of the present invention is to provide an ultrafine glass fiber cotton for aviation having a low thermal conductivity, excellent mechanical strength, and excellent thermal and acoustic insulation properties, and a preparation method thereof.
  • the present invention provides the following technical solutions:
  • a high-strength heat-insulating and sound-insulating ultra-fine glass fiber cotton for aviation comprising 75 to 85 wt% of ultrafine glass fiber, 15 to 25 wt% of a binder, and 2 to 10 wt% of a processing aid; the ultrafine glass
  • the composition of the fiber has a basic metal oxide R 2 O content of 14 to 19% by weight, a B 2 O 3 content of 5 to 7.5% by weight, and the basic metal oxide R 2 O is Na 2 O and/or K. 2 O; 95% of the diameter of the ultrafine glass fibers are normally distributed in the range of 1 to 2 ⁇ m.
  • the ultrafine glass fiber is composed of SiO 2 (61.5 to 65.5 wt%), Al 2 O 3 (3.5 to 6.5 wt%), MgO (1.5 to 4.5 wt%), Na 2 by weight. O (12.5 to 16.5 wt%), K 2 O (1.5 to 2.5 wt%), CaO (2.5 to 7 wt%), B 2 O 3 (5 to 7.5 wt%), Fe 2 O 3 (0.05 to 0.15 wt%) And BaO (0.5 to 1.5 wt%).
  • the processing aid includes a water repellent, a curing agent, a coupling agent, and a flexible agent.
  • the water repellent agent is one or more selected from the group consisting of amino silicone oil, methyl silicone oil, WACKER silicone oil, hydroxy silicone oil and hydroxy amino silicone oil, and the content is 0.5-5% of the total weight of the glass fiber cotton; the curing agent One or more kinds of ammonium sulfate and ethyl sulfate are used, and the content is 0.5 to 3% of the total weight of the glass fiber cotton.
  • the coupling agent is one selected from the group consisting of KH550 silane coupling agent, KH560 silane coupling agent, KH792 silane coupling agent, NDZ-101 titanate coupling agent and NDZ-311 titanate coupling agent.
  • the flexible agent selected one or more of SS, SS-100, SS-200, nitrile rubber, polyacrylate and styrene-butadiene latex, The content is 0.5 to 3% of the total weight of the glass fiber cotton.
  • the binder is urea modified phenolic resin, polyurethane modified phenolic resin, melamine modified phenolic resin, polyvinyl alcohol modified phenolic resin, silicone modified phenolic resin, rubber modified phenolic resin, urethane modified One or more of phenolic resin and synthetic resin modified phenolic resin.
  • the mechanical strength of the ultrafine glass fiber cotton in the longitudinal direction is 8N/25 mm to 15 N/25 mm
  • the mechanical strength in the width direction is 1.5 N/25 mm to 5 N/25 mm
  • the sound transmission loss at 2000 Hz is 15 dB to 35 dB
  • the sound transmission loss at 4000 Hz It is 25dB to 45dB
  • the thermal conductivity is 0.025W/(m ⁇ K) to 0.03W/(m ⁇ K).
  • a method for preparing high-strength heat-insulating and sound-insulating ultra-fine glass fiber cotton for aviation the steps are as follows: 1) after uniformly mixing quartz sand, calcite, dolomite, soda ash, borax, potassium feldspar, albite and barium carbonate It is put into the kiln to be calcined to melt out the glass liquid with uniform composition and no impurities.
  • the glass liquid is passed through the drain plate to form a glass filament stream, and the temperature of the glass liquid is controlled to be 1090 ⁇ 10°C; 3) the glass filament is once The stream is secondarily melted and drawn into ultra-fine glass fiber under the action of high-temperature and high-speed flame gas flow, and the secondary melting fiber-forming temperature is 1000 ⁇ 10° C., and ultra-fine glass fiber is prepared; 4) The solution of the binder and the processing aid is uniformly atomized and sprayed on the surface of the ultrafine glass fiber, and uniformly dispersed on the forming wire; 5) drying in the drying room at 130 ° C ⁇ 150 ° C for 5 min ⁇ 8 min.
  • the step 1) is: selecting 42 to 50 parts of quartz sand, 1 to 6 parts of calcite, 7 to 10 parts of borax, 7 to 9 parts of potassium feldspar powder, 4 to 6 parts of sodium feldspar powder, 11 to 1 by weight. 13 parts of dolomite, 9 to 12 parts of soda ash, 1-4 parts of calcite and 1 to 2 parts of cesium carbonate are uniformly mixed and put into a kiln for calcination to melt a glass liquid with uniform composition and no impurity and transparency.
  • the binder is a melamine-modified phenolic resin in an amount of 14 to 19% by weight based on the total weight of the glass fiber cotton;
  • the processing aid comprises a water repellent, a curing agent, a coupling agent and a flexible agent
  • the water repellent is methyl silicone oil in an amount of 1 to 4 wt% based on the total weight of the glass fiber cotton
  • the curing agent is ammonium sulfate of 0.5 to 2 wt% based on the total weight of the glass fiber cotton
  • the coupling agent is the total weight of the glass fiber cotton.
  • 0.5 to 4 wt% of a KH792 silane coupling agent, the flexible agent being 0.5 to 3.5 wt% of SS-200 based on the total weight of the glass fiber cotton.
  • the beneficial effects of the invention are as follows: by controlling the content of the basic metal oxide R 2 O in the ultrafine glass fiber to be 14 to 19%, the crystallization tendency of the glass liquid can be effectively reduced, and the mechanical strength of the ultrafine glass fiber cotton can be improved; Control the content of B 2 O 3 in the ultrafine glass fiber to be 5 to 7.5%, which can effectively refine the fiber, improve the mechanical strength of the ultrafine glass fiber cotton and reduce the thermal conductivity; by controlling the temperature of the molten glass at 1090 ⁇ 10 ° C and secondary melting The fiber-forming blowing temperature is 1000 ⁇ 10° C., and the prepared ultra-fine glass fiber has a normal distribution of 95% in diameter of 1 to 2 ⁇ m.
  • the ultra-fine glass fiber cotton of the invention has the advantages of light weight, fine and uniform fiber diameter, high mechanical strength and excellent heat insulation and sound insulation performance, and is very effective for the thermal insulation sound insulation panel interlayer of the aviation aircraft, and has excellent comprehensive mechanical properties and
  • the low thermal conductivity has a wide range of use prospects in the aero-aircraft's thermal and acoustic insulation deck sandwiches, which can bring considerable economic benefits.
  • the ultra-fine glass fiber diameter is 95% normal distribution in 1-2 ⁇ m; then the ratio of the weight ratio to the ultrafine glass fiber is 17.5% melamine modified phenolic resin, 1% methyl silicone oil , 0.5% ammonium sulfate, 1.5% KH792 silane coupling agent, 1% SS-200 adhesive solution is sprayed evenly on the surface of ultra-fine glass fiber, and evenly dispersed on the forming wire; finally baked in a drying room at 150 ° C Dry for 5 min;
  • the finished high-strength heat-insulating and sound-insulating ultra-fine glass fiber cotton has a mechanical strength of 10N/25mm in the longitudinal direction and a mechanical strength of 5N/25mm in the width direction.
  • the sound transmission loss of 2000Hz is ⁇ 15dB
  • the sound transmission loss of 4000Hz is ⁇ 25dB
  • the thermal conductivity is It is 0.025 to 0.03 W/(m ⁇ K).
  • the ultra-fine glass fiber 95% diameter is normally distributed in 1-2 ⁇ m; then the weight ratio of the ultrafine glass fiber is 16.5% melamine modified phenolic resin, 2% methyl silicone oil , 0.5% ammonium sulfate, 2% KH792 silane coupling agent, 1% SS-200 adhesive solution is sprayed evenly on the surface of ultra-fine glass fiber, and evenly dispersed on the forming wire; High-strength heat-insulating and sound-insulating ultra-fine glass fiber cotton, drying room temperature of 140 ° C, drying for 7 min;
  • the high-strength heat-insulating and sound-insulating ultra-fine glass fiber cotton for the finished aircraft has a mechanical strength of 10.5N/25mm in the longitudinal direction, a mechanical strength of 6N/25mm in the width direction, a sound transmission loss of ⁇ 17dB at 2000Hz, and an acoustic loss of ⁇ 26dB at 4000Hz.
  • the coefficient is 0.025 to 0.029 W/(m ⁇ K).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne une fibre de verre à haute résistance, thermo-isolante, insonorisée et ultrafine pour l'aviation et un procédé de fabrication associé, constituée d'une fibre de verre ultrafine à 75 à 85 % en poids, d'un agent adhésif de 15 à 25 % en poids, et d'un additif de traitement de 2 à 10 % en poids, la teneur en oxyde de métal alcalin R2O de la fibre de verre ultrafine étant de 14 à 19 % en poids, la teneur en B2O3 étant de 5 à 7,5 % en poids, l'oxyde de métal alcalin R2O étant Na2O et/ou K2O, et 95 % du diamètre de la fibre de verre ultrafine étant dans la distribution normale de 1 à 2 µm. La fibre de verre ultrafine est légère, d'un diamètre de fibre petit et uniforme, et est dotée d'une résistance mécanique accrue et d'une grande isolation thermique ainsi que d'excellentes performances d'insonorisation.
PCT/CN2018/078554 2017-03-28 2018-03-09 Fibre de verre à haute résistance, thermo-isolante, insonorisée et ultrafine pour l'aviation et procédé de fabrication associé Ceased WO2018177111A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710192587.4 2017-03-28
CN201710192587.4A CN106966583A (zh) 2017-03-28 2017-03-28 一种航空用高强度隔热隔音超细玻璃纤维棉及制备方法

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WO2018177111A1 true WO2018177111A1 (fr) 2018-10-04

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CN (1) CN106966583A (fr)
WO (1) WO2018177111A1 (fr)

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CN117776666A (zh) * 2024-01-03 2024-03-29 威伦维客节能科技(安徽)有限公司 一种声学用玻璃棉板

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CN107521185A (zh) * 2017-08-19 2017-12-29 宿迁南航新材料与装备制造研究院有限公司 一种服装保温用复合材料及其制备方法
CN108245998B (zh) * 2018-01-26 2020-11-27 重庆纤维研究设计院股份有限公司 一种空气滤芯用高挺度玻璃纤维复合过滤棉毡及制备方法
CN109020245B (zh) * 2018-09-05 2021-06-08 内蒙古世环新材料股份有限公司 一种絮状玻璃棉的生产方法
CN109956708A (zh) * 2019-04-15 2019-07-02 宣汉正原微玻纤有限公司 一种航空专用隔音、隔热玻璃纤维复合材料及其制备方法
CN110845145A (zh) * 2019-07-01 2020-02-28 重庆文理学院 一种汽车发动机隔热罩用复合耐热材料及其制备方法
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CN112939450B (zh) * 2021-02-23 2022-07-29 重庆文理学院 一种针对低频噪音用保温隔音玻璃微纤维棉及其制备方法
CN113307489B (zh) * 2021-06-10 2023-02-07 浙江理工大学 介孔玻璃纤维及其制备方法和分级孔道纤维棉及其制备方法
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CN116063000A (zh) * 2021-10-29 2023-05-05 袁飞 一种再生玻璃棉片及再生玻璃棉增强树脂基复合材料
CN114031300A (zh) * 2021-12-14 2022-02-11 重庆纤维研究设计院股份有限公司 用于玻璃纤维的玻璃、玻璃纤维及玻璃纤维的制造方法
CN114497885A (zh) * 2022-01-24 2022-05-13 重庆文理学院 一种超细玻璃纤维电池隔膜的生产工艺
CN115572362A (zh) * 2022-10-19 2023-01-06 江苏雅克科技股份有限公司 一种超细玻璃纤维连续毡增强型聚氨酯保温材料及其制备方法、应用
CN119349890B (zh) * 2024-12-25 2025-03-14 内蒙古世环新材料股份有限公司 一种超细离心玻璃棉的制备方法

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CN117776666A (zh) * 2024-01-03 2024-03-29 威伦维客节能科技(安徽)有限公司 一种声学用玻璃棉板

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