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Preparation method of nanoscale glass fiber and product thereof

A glass fiber and nano-scale technology, applied in the field of nano-scale glass fiber preparation, can solve the problems of complicated production process, complex raw material composition, unsuitable for industrial production, etc., and achieve good continuity, controllable fiber size, stable and single orientation Effect

Active Publication Date: 2022-01-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The nano glass fiber prepared by this process has high tensile strength, but the composition of raw materials is complex and the production process is complicated, which is not suitable for industrial production

Method used

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  • Preparation method of nanoscale glass fiber and product thereof
  • Preparation method of nanoscale glass fiber and product thereof
  • Preparation method of nanoscale glass fiber and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] According to SiO 2 60%, Al 2 o 3 20%, P 2 o 5 10%, MgO4%, SnO 2 2%, Li 2 O3%, CeO 2 0.5% and TiO 2 The mass fraction ratio of 0.5% is accurately weighed, placed in a mixer and mixed evenly, then put into a glass high-temperature furnace, melted at 1500°C, and then the molten glass is supplied to the bushing device, and spinning and forming is performed at 1300°C , to obtain monofilament glass fibers with a diameter of 15 μm. The fiber was fixed in the conveying device, the fiber tip was heated by a laser and maintained at 1080°C, and the glass fiber was pulled by a platinum tip with a diameter of 30 nm to obtain nano glass fiber.

[0041] figure 1 It is the SEM photo of the forming process of micron glass fiber forming nano-glass fiber through secondary stretching in this embodiment, as can be seen from the figure, in the secondary stretching forming process, nano-glass fiber will not bend, thereby ensuring its The orientation is stable and single; and the s...

Embodiment 2

[0043] According to SiO 2 60%, Al 2 o 3 20%, P 2 o 5 10%, MgO4%, SnO 2 2%, Li 2 O3%, CeO 2 0.5% and TiO 2 0.5% mass fraction ratio is accurately weighed, placed in a mixer and mixed evenly, then put into a high-temperature glass furnace, melted at 1470°C, and then the molten glass is supplied to the bushing device, and spun and formed at 1350°C , to obtain monofilament glass fibers with a diameter of 10 μm. The fiber was fixed in the delivery device, the fiber tip was heated by a laser and maintained at 1100°C, and the glass fiber was pulled by a platinum tip with a diameter of 30 nm to obtain nano glass fiber.

Embodiment 3

[0045] According to SiO 2 65%, Al 2 o 3 18%, P 2 o 5 9%, MgO3.5%, SnO 2 2%, Li 2 O1.5%, CeO 2 1% mass fraction ratio is accurately weighed, placed in a mixer and mixed evenly, then put into a glass high-temperature furnace, melted at 1500 ° C, and then the molten glass is supplied to the bushing device, and spinning and forming at 1300 ° C , to obtain monofilament glass fibers with a diameter of 15 μm. The fiber was fixed in the conveying device, the fiber tip was heated by a laser and maintained at 1080°C, and the glass fiber was pulled by a platinum tip with a diameter of 30 nm to obtain nano glass fiber.

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Abstract

The invention discloses a preparation method of nanoscale glass fibers, which comprises the following steps: step 1, uniformly blending all raw materials, conducting melting at high temperature, and conducting spinning and forming to obtain micron-sized monofilament glass fibers; and step 2, heating the micron-sized monofilament glass fiber, drawing the micron-sized monofilament glass fiber through a metal nanoneedle, and carrying out secondary wiredrawing to obtain nano-sized glass fiber. The raw materials comprise the following components in parts by weight: 50-65 parts of SiO2; 15 to 30 parts of Al2O3; and 7.5 to 15 parts of P2O5. The mass ratio of Al2O3 to P2O5 is (1.85-2.15):1. According to the preparation method of the nanoscale glass fiber, a specific glass formula is combined with a preparation process of secondary wire drawing, raw materials are simple, the technological process is short, controllability is good, and the preparation method is suitable for industrial production. The prepared nanoscale glass fiber is few in surface defect, single in orientation, good in toughness and capable of avoiding fiber floating, and is particularly suitable for preparing a reinforcing material.

Description

technical field [0001] The invention relates to the technical field of glass fibers, in particular to a method for preparing nanoscale glass fibers and products thereof. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. The product has good insulation, strong heat resistance and corrosion resistance, and high strength. It is widely used in important fields such as reinforcing materials and thermal insulation materials. The diameter of its monofilament is several microns to more than 20 microns, and each bundle of fiber precursors is composed of hundreds or thousands of monofilaments. [0003] Nanoglass fiber is a material that is expected to replace micron glass fiber. It not only has the characteristics of micron glass fiber, but also exhibits high aspect ratio, high specific surface area, high sensitivity and high compatibility with matrix materials due to its nanoscale diameter. Interface bonding strength and othe...

Claims

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Application Information

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IPC IPC(8): C03C13/00C03C3/097C03B37/022
CPCC03C13/00C03C3/097C03B37/022
Inventor 赵高凌朱钦塨金俊腾宋斌韩高荣
Owner ZHEJIANG UNIV
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