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Preparation of nano fibre reinforcement composite resin with high transmittance

A nanofiber and reinforced composite technology, which is applied in the field of nanofiber reinforced composite resin materials, achieves the effects of high fiber content, good light transmittance and simple process

Inactive Publication Date: 2008-05-28
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A limitation of this method is that the fibers used must be optically transparent (Koch WJ et al., Transparent compositepanel. International Application No: PCT / US2005 / 02650)

Method used

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  • Preparation of nano fibre reinforcement composite resin with high transmittance
  • Preparation of nano fibre reinforcement composite resin with high transmittance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Will size 5×1cm 2 , The mass per unit area is 0.54g / cm 2 A nylon nanofiber membrane with a thickness of 13μm and a fiber diameter of 100-300nm is immersed in a glass tank containing 10g of a 3% polyvinyl alcohol solution, soaked for 8 hours, and then vacuum dried at 50°C for 24 hours. A composite membrane with a fiber content of 2% was obtained, and the thickness of the composite membrane was 196 μm. The light transmittance of the film is about 90%, which is equivalent to a pure polyvinyl alcohol film.

Embodiment 2

[0028] Will size 5×1cm 2 , The mass per unit area is 9.2g / cm 2 The carbon nanofiber membrane with a thickness of 152μm and a fiber diameter of 100-300nm is immersed in a glass tank containing 10g of acrylic resin solution with a concentration of 8%, soaked for 14 hours, and then vacuum dried at 50°C for 24 hours. A composite membrane with a fiber content of 40% was obtained, and the thickness of the composite membrane was 210 μm. The light transmittance of the film is about 85%. The tensile strength is increased by 100% compared to the acrylic resin film, and the Young's modulus is increased by 8 times.

Embodiment 3

[0030] Will size 5×1cm 2 , The mass per unit area is 4.5g / cm 2 A polycarbonate nanofiber membrane with a thickness of 86μm and a fiber diameter of 100-350nm is immersed in a glass tank containing 10g of 15% soy protein isolate solution, soaked for 18 hours, and then vacuum dried at 50°C for 24 hours . A composite membrane with a fiber content of 20% was obtained, and the thickness of the composite membrane was 130 μm. The light transmittance of the film is about 75%. The tensile strength is increased by 50 times than that of pure soy protein isolate film, and the Young's modulus is increased by 20 times.

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Abstract

The invention relates to the nano composite material field, in particular to a nano-fiber reinforced composite colophony material with high transmittance. The invention adopts the technical proposal that the macromolecule nano-fiber membrane is arranged in transparent colophony dilute solution and fully dipped and dried in order to obtain nano-fiber reinforced composite colophony with high transmittance. The fiber membrane has the thickness of 15 to 160 Mum and the mass percentage of 2 to 60%; the consistency of the colophony solution is 3 to 15% and the dipping time is 8 to 18 hours. The macromolecule nanofiber is cellulose nanofiber, nylon nanofiber, polyester carbonate nanofiber, glass nanofiber or carbon nanofiber. The transparent colophony is polyvinyl alcohol, soja separation albumen, acrylic resin, epoxy resin or polycarbonate. The invention adopting the dipping method has the advantages of simple equipment and process, easy forming and being suitable for the preparation in large scale. The fiber content in the composite material is high, which can reach 40%; the invention has good transmittance and mechanic performance, in particular to excellent tensile strength, tension strength and modulus.

Description

Technical field [0001] The invention relates to the field of nano composite materials, in particular to a nano fiber reinforced composite resin material with high light transmittance. The material can be used as a lighting structure material for high-speed moving aircraft or trains. Background technique [0002] The fiber-reinforced composite material with high light transmittance is a material that has the characteristics of transparency or high light transmittance, excellent tensile strength, high elastic modulus, low thermal conductivity, light weight and high strength. In addition to being used as general lighting materials, this kind of material is more suitable for window materials for high-speed moving vehicles such as trains and airplanes that ordinary transparent glass cannot handle, especially for fighter cockpit covers. The mechanics and light transmittance of fiber reinforced resin materials are not only affected by the light transmittance of the resin itself, but als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29K29/00B29K33/04B29K63/00B29K69/00B29K401/00
Inventor 刘海清唐春怡陈观福寿
Owner FUJIAN NORMAL UNIV
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