A kind of fiber material with impact resistance and preparation method thereof

A technology of impact resistance and fiber material, which is applied in the field of fiberboard with impact resistance and its preparation, can solve the problems that impact resistance affects design and application, threatens the service life of materials and structures, and is easily attacked by heavy objects. The effect of easy realization, simple preparation method and excellent impact resistance

Active Publication Date: 2021-05-07
ZHEJIANG FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact resistance of bamboo and wood-based composite recombined wood seriously affects its design and application in building construction. Wood structures are vulnerable to heavy objects in extreme environments. High-strength impacts often lead to damage to composite materials, further threatening to the service life of materials and structures

Method used

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  • A kind of fiber material with impact resistance and preparation method thereof
  • A kind of fiber material with impact resistance and preparation method thereof
  • A kind of fiber material with impact resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a fiber material with impact resistance, comprising the following steps:

[0034] S1: Pulverize the biomass fiber, and then mix with NaOH, Na 2 SO 3 Dissolved in distilled water to form a suspension, the biomass fiber: NaOH: Na 2 SO 3 : The mass ratio of distilled water is 20:60:40:2000; S2: Send the suspension obtained in S1 into a colloid mill for grinding to obtain a grinding liquid, wherein the colloid mill speed is 2500rpm, and the grinding time is 10h; S3 : Pour the grinding solution obtained in S2 into a Buchner funnel and carry out suction filtration for 10 hours to obtain the precursor of the impact-resistant fiber material; S4: impregnate the impact-resistant polymer material PBDMS into the precursor of the impact-resistant fiber material obtained in S3, and then carry out The finished product is obtained by hot pressing, the impact-resistant polymer material in the finished product is 1% by mass, the hot pressing time is 0.5h, the te...

Embodiment 2

[0036] A method for preparing a fiber material with impact resistance, comprising the following steps:

[0037] S1: Pulverize the biomass fiber, and then mix with NaOH, Na 2 SO 3 Dissolved in distilled water to form a suspension, the biomass fiber: NaOH: Na 2 SO 3 : The mass ratio of distilled water is 40:120:80:2000; S2: Send the suspension obtained in S1 into a colloid mill for grinding to obtain a grinding liquid, wherein the speed of the colloid mill is 3000rpm, and the grinding time is 5h; S3 : Pour the grinding solution obtained in S2 into a Buchner funnel for suction filtration for 15 hours to obtain the impact-resistant fiber material precursor; S4: impregnate the impact-resistant polymer material PBDMS into the impact-resistant fiber material precursor obtained in S3, and then carry out The finished product is obtained by hot pressing. The mass percentage of the impact-resistant polymer material in the finished product is 10%. The hot pressing time is 2 hours, the ...

Embodiment 3

[0039] A method for preparing a fiber material with impact resistance, comprising the following steps:

[0040] S1: Pulverize the biomass fiber, and then mix with NaOH, Na 2 SO 3 Dissolved in distilled water to form a suspension, the biomass fiber: NaOH: Na 2 SO 3: The mass ratio of distilled water is 30:100:50:2000; S2: Send the suspension obtained in S1 into a colloid mill for grinding to obtain a grinding liquid, wherein the speed of the colloid mill is 2880rpm, and the grinding time is 6h; S3 : Pour the grinding liquid obtained in S2 into a Buchner funnel and carry out suction filtration for 12 hours to obtain the precursor of the impact-resistant fiber material; S4: impregnate the impact-resistant polymer material PBDMS into the precursor of the impact-resistant fiber material obtained in S3, and then carry out The finished product is obtained by hot pressing. The mass percentage of the impact-resistant polymer material in the finished product is 5%, the hot pressing t...

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Abstract

The invention provides a fiber material with impact resistance and a preparation method thereof. The method comprises the steps of obtaining a biomass fiber with a micro-nano binary structure by a thermal grinding method, and then using a vacuum filtration self-assembly technology to obtain a suspension liquid assembly layered structure precursor. Then, the impact-resistant polymer is filled into the precursor, and the fiber material with super impact-resistant performance is obtained by hot pressing. The method is simple and easy to operate, has low energy consumption, can prepare large-area fiberboard, and has good economic benefits.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a fiberboard with impact resistance and a preparation method thereof. Background technique [0002] The development of technology and diversified application fields put forward higher-level requirements for the performance and application of materials, and the development of various composite materials is moving towards the direction of multi-function, high performance and environmental friendliness. Bio-based composite materials such as bamboo and wood, as one of the few natural materials in the composite material family that are uniquely biomass, renewable, and environmentally friendly, have broad development space and market potential, so they should also keep up with the pace of research on new materials and cutting-edge research Dynamic, constantly looking for new technological breakthroughs and theoretical innovations in material development, performance researc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L1/02C08L83/04C08L23/08C08L75/04
CPCC08L1/02C08L97/02C08L2205/03C08L83/04C08L75/04C08L23/0853
Inventor 孙庆丰陈逸鹏陈波党宝康
Owner ZHEJIANG FORESTRY UNIVERSITY
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