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A kind of preparation method and application of modified bamboo fiber material

A technology for bamboo fibrils and fibrils, which is applied in the field of preparation of modified bamboo fibril materials, can solve problems such as unreported modification properties of bamboo fibrils, and achieve the effects of abundant raw materials, simple modification process and environmental friendliness.

Active Publication Date: 2018-01-12
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As a potential biomass material, there is only a small amount of research on bamboo fiber in composite materials, and there is no report on the modified properties of bamboo fiber

Method used

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  • A kind of preparation method and application of modified bamboo fiber material
  • A kind of preparation method and application of modified bamboo fiber material
  • A kind of preparation method and application of modified bamboo fiber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Bamboo fiber pretreatment

[0030] Weigh 4 g of bamboo fiber and place it in 100 g of sodium hydroxide solution with a mass fraction of 15%, ultrasonically treat it for 30 min, wash it to neutrality, and dry it to a constant weight in an oven at 50 ° C. The concentration of sodium periodate is 20 g / L. The reaction temperature was 40 ℃, and the reaction was carried out under the condition of pH 3 for 4 h, and the content of aldehyde group was determined to be 1.67 mmol / g.

Embodiment 2

[0031] Example 2 Bamboo fibril pretreatment.

[0032] This example is basically the same as Example 1, except that the mass fraction of sodium hydroxide solution is 20%, the ultrasonic time is 40min, the oxidation reaction conditions are the same, and the measured aldehyde group content is 1.90mmol / g.

Embodiment 3

[0033] Example 3 Bamboo fibril pretreatment.

[0034] This example is basically the same as Example 1, except that the mass fraction of sodium hydroxide solution is 25%, the oxidation reaction conditions are the same, and the measured aldehyde group content is 2.10 mmol / g.

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Abstract

The invention discloses a preparation method and application of modified natural bamboo fiber materials. The preparation method comprises the steps as follows: enabling natural bamboo fibers to perform an oxidizing reaction by adopting a strong oxidant, and obtaining dialdehyde natural bamboo fibers; using the dialdehyde natural bamboo fibers for reacting with ethylenediamine, and obtaining the grafted natural bamboo fibers, that is, the modified natural bamboo fiber materials. The obtained grafted natural bamboo fibers are used for adsorbing formaldehyde to investigate the adsorption effect. The method disclosed by the invention modifies the natural bamboo fibers with an oxidation method and an amination method, the process is simple, raw materials are cheap, and the modified natural bamboo fibers have a relatively good adsorption effect on formaldehyde.

Description

technical field [0001] The invention belongs to the field of environmental protection materials, and in particular relates to a preparation method and application of a modified bamboo fibril material. Background technique [0002] As one of the origins and distribution centers of bamboo plants, my country has the most abundant bamboo resources and is known as the "Bamboo Kingdom". Bamboo, as a renewable resource and biomass raw material, is expected to contribute to the improvement of problems such as resource shortage and environmental pollution. The non-toxic, harmless and pollution-free natural cellulose fibers prepared by physical methods are called bamboo fibrils, which basically retain the natural superior properties of bamboo fibers, have excellent moisture absorption and dehumidification properties, and are antibacterial and anti-ultraviolet. [0003] As an environmentally friendly biomass cellulose fiber, the oxidation of bamboo fibrils is of great significance; ox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/30D06M13/332C08B15/02B01J20/24B01J20/30C02F1/28D06M101/04C02F101/34
CPCB01J20/24C02F1/286C02F2101/34C08B15/02D06M11/30D06M13/332D06M2101/04
Inventor 许伟颜甜甜邵荣丁建飞陈立根
Owner YANCHENG INST OF TECH