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Continuous flax fiber bundle surface grafted with nano titanium dioxide as well as preparation method thereof

A nano-titanium dioxide and flax fiber technology, applied in fiber treatment, plant fiber, fibrous filler, etc., can solve the problems of ignoring the properties of polymers and not considering the interaction, so as to achieve high performance and improve interface bonding Performance, the effect of improving the tensile strength of monofilament

Active Publication Date: 2015-04-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the physical high-performance method ignores the polymer properties of the resin matrix, and does not consider the chemical bonding interaction between the active groups on the surface of plant fibers and the resin matrix.

Method used

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  • Continuous flax fiber bundle surface grafted with nano titanium dioxide as well as preparation method thereof
  • Continuous flax fiber bundle surface grafted with nano titanium dioxide as well as preparation method thereof
  • Continuous flax fiber bundle surface grafted with nano titanium dioxide as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] First prepare nano-titanium dioxide suspension: prepare dehydrated alcohol (Tianjin Fuchen Chemical Reagent Factory, analytically pure grade), silane coupling agent (Nanjing Chengong Organic Silicon Material Co., Ltd., KH-560) by weight ratio 50:10:40 Type γ-(2,3-epoxypropoxy)propyltrimethoxysilane, relative molecular mass 236.34) and distilled water mixed solution, then under stirring at 200 rev / min, gradually add nano titanium dioxide particles with a diameter of 5nm (Zhejiang Hongsheng Material Technology Co., Ltd., HR 3 Type hydrophilic anatase phase nano-TiO 2 , purity > 99%), the mass content of titanium dioxide in the suspension is 0.5%, after complete addition, increase the stirring speed to 1500 rpm, and stir for 60 minutes.

[0025] 24 continuous flax fiber bundles (Harbin Linen Textile Co., Ltd., 15 mid-count twisted wet-spun yarns, 15 twists / 10cm) passed through a distilled water ultrasonic cleaning tank (Shanghai Bilang Instrument Co., Ltd.), and the ultra...

Embodiment 2

[0035] First prepare nano-titanium dioxide suspension: prepare dehydrated alcohol (Tianjin Fuchen Chemical Reagent Factory, analytically pure grade), silane coupling agent (Nanjing Chengong Organic Silicon Material Co., Ltd., KH-560) by weight ratio 90:2:8 Type γ-(2,3-glycidyloxy)propyltrimethoxysilane, relative molecular weight 236.34) and distilled water mixed solution, then under stirring at 1500 rev / min, gradually add nano-titanium dioxide particles with a diameter of 100nm (Zhejiang Hongsheng Material Technology Co., Ltd., HR 3 Type hydrophilic anatase phase nano-TiO 2 , purity > 99%), the mass content of titanium dioxide in the suspension is 15%, after complete addition, increase the stirring speed to 3000 rpm, and stir for 60 minutes.

[0036] 8 continuous flax fiber bundles (Harbin Linen Textile Co., Ltd., 15 mid-count twisted wet-spun yarns, 15 twists / 10cm) passed through a distilled water ultrasonic cleaning tank (Shanghai Bilang Instrument Co., Ltd.), and the ultra...

Embodiment 3

[0046] First prepare nano-titanium dioxide suspension: prepare dehydrated alcohol (Tianjin Fuchen Chemical Reagent Factory, analytically pure grade), silane coupling agent (Nanjing Chengong Organic Silicon Material Co., Ltd., KH-560) by weight ratio 80:10:10 Type γ-(2,3-epoxypropoxy)propyltrimethoxysilane, relative molecular weight 236.34) and distilled water mixed solution, and then under stirring at 1000 rev / min, gradually add nano-titanium dioxide particles with a diameter of 10nm (Zhejiang Hongsheng Material Technology Co., Ltd., HR 3 Type hydrophilic anatase phase nano-TiO 2 , purity > 99%), the mass content of titanium dioxide in the suspension is 5%, after complete addition, increase the stirring speed to 2000 rpm, and stir for 60 minutes.

[0047] 18 continuous flax fiber bundles (Harbin Linen Textile Co., Ltd., 15 mid-count twisted wet-spun yarns, 15 twists / 10cm) passed through a distilled water ultrasonic cleaning tank (Shanghai Bilang Instrument Co., Ltd.), and the...

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Abstract

The invention provides a continuous flax fiber bundle surface grafted with nano titanium dioxide as well as a preparation method thereof. The preparation method of the continuous flax fiber bundle comprises the following steps: firstly ultrasonically cleaning the continuous flax fiber bundle by distilled water; then, dipping the bundle into a suspension of nano titanium dioxide and a silane coupling agent and ultrasonically cleaning the continuous flax fiber bundle again by distilled water after a certain action time; and finally drying and coiling the treated continuous flax fiber bundle. According to the continuous flax fiber bundle treated by virtue of the method, the tensile performance of the continuous flax fiber bundle as well as the interface bond behavior with epoxy resin can be remarkably improved. High performance of a flax fiber reinforced resin-based composite material is realized by virtue of the method.

Description

technical field [0001] The invention relates to the field of continuous flax fiber treatment methods, in particular to a continuous flax fiber bundle with surface-grafted nano-titanium dioxide and a preparation method thereof. Background technique [0002] Plant fibers can be used as reinforcing fibers to prepare various fiber-reinforced resin-based composites, but due to their low mechanical properties, they are currently mainly used in non-structural components and automotive interiors. Plant fiber has the advantages of short growth cycle, environmental friendliness, wide source, low density, high specific strength / modulus, and low price. If a certain process is adopted to greatly improve the mechanical properties of plant fibers and their interface bonding properties with the resin matrix, and prepare high-performance plant fiber composite materials that can be used as structural materials, the application of plant fibers and their composite materials will be significantl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M13/513C09C1/36C09C3/12D06M101/06
Inventor 咸贵军王宏光
Owner HARBIN INST OF TECH
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