Preparation method of nano bamboo fiber composite material

A technology of nano-bamboo fiber and composite material, which is applied in the direction of artificial filament in cellulose solution, fiber treatment, fiber chemical characteristics, etc., to achieve the effect of saving energy and cost, large specific surface area, and small fiber diameter

Inactive Publication Date: 2013-06-26
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since bamboo fiber is a kind of natural cellulose, its high crystallinity and hydrogen bond structure make it insoluble in common solvents, it...

Method used

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  • Preparation method of nano bamboo fiber composite material
  • Preparation method of nano bamboo fiber composite material
  • Preparation method of nano bamboo fiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The bamboo pulp is activated by the methanol / DMAc replacement method, soaking the bamboo pulp in distilled water overnight to make it fully swell, washing the swollen bamboo pulp three times with methanol, soaking for 45 minutes, and filtering after soaking. They were washed three times with DMAc, soaked for 45 minutes, filtered, and then dried in a 110°C electric constant temperature blast drying oven. Use 8% (w / v, w unit is Kg, v unit is L) LiCl / DMAc solvent system to dissolve the activated bamboo pulp, add the dried LiCl to the DMAc at 40 ° C, stir until the LiCl is completely dissolved, Prepare 8% (w / v, w unit is Kg, v unit is L) LiCl / DMAc mixed solvent. Add the dried bamboo pulp into 8% (w / v, w unit is Kg, v unit is L) LiCl / DMAc solvent system according to the proportion, stir at 80°C for 12h, take it out and continue stirring at room temperature until bamboo The pulp is completely dissolved to make 4% bamboo pulp. DMAc was used to dissolve PAN to prepare a 16% P...

Embodiment 2

[0030] The bamboo pulp cake is activated by a heating activation method, soaking the bamboo pulp cake in distilled water overnight to make it fully swell, and drying the swollen bamboo pulp cake for use. Weigh 4 g of cellulose raw material into a conical flask, add 100 mL of DMAc, heat to 150 °C, stir at this temperature for 20-30 min, continue stirring for 2 h under reflux, then cool down to 100 °C, add 0.8 g of dry LiCl was stirred at this temperature for 2 h, cooled to room temperature and placed until the bamboo cellulose was dissolved. DMAc was used to dissolve PAN to prepare a 16% PAN solution, and the bamboo slurry and polymer solution were mixed in a certain proportion to prepare a spinning solution with a bamboo cellulose content of 8%. Using the electrospinning device, put the bamboo pulp spinning solution into the needle tube, connect the positive and negative poles, turn on the high-voltage DC generator power supply, and spin under the conditions of spinning voltag...

Embodiment 3

[0032]The bamboo pulp is activated by the methanol / DMAc replacement method, soaking the bamboo pulp in distilled water overnight to make it fully swell, washing the swollen bamboo pulp three times with methanol, soaking for 45 minutes, and filtering after soaking. They were washed three times with DMAc, soaked for 45 minutes, filtered, and then dried in a 110°C electric constant temperature blast drying oven. Use 8% (w / v, w unit is Kg, v unit is L) LiCl / DMAc solvent system to dissolve the activated bamboo pulp, add the dried LiCl to the DMAc at 40 ° C, stir until the LiCl is completely dissolved, Prepare 8% (w / v, w unit is Kg, v unit is L) LiCl / DMAc mixed solvent. Add the dried bamboo pulp into 8% (w / v, w unit is Kg, v unit is L) LiCl / DMAc solvent system according to the proportion, stir at 80°C for 12h, take it out and continue stirring at room temperature until bamboo The pulp is completely dissolved to make 4% bamboo pulp. DMAc was used to dissolve PS-PAN copolymer to pre...

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Abstract

The invention discloses a preparation method of a nano bamboo fiber composite material. The method comprises the following steps of: respectively preparing bamboo slurry and a polymer solution; then mixing the bamboo slurry and the polymer solution according to a certain proportion so as to obtain blend spinning liquid with different bamboo fiber content; and successfully preparing the nano bamboo fiber composite material from the blend spinning liquid by an electrostatic spinning technology. By the method, bamboo fibers can be prepared by the electrostatic spinning technology; the diameter of composite nano fiber obtained by the method is 50-250 nm; the bamboo fibers account for 0.1-99.9 percent of composite fibers; polymers account for 99.9-0.1 percent of the composite fibers; the nano bamboo fiber composite material is attractive in appearance and uniform in thickness; the preparation method is simple; raw materials are readily available and low in cost; and the method is favorable for electrostatic spinning industrialization and has wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of nanometer bamboo fiber composite material. Background technique [0002] Bamboo fiber is a kind of cellulose fiber extracted from naturally growing bamboo. It is considered to be the fifth largest natural fiber after cotton, hemp, wool and silk. The cross-section of bamboo fiber is full of pores, there are many grooves and cracks, and it has good air permeability and water absorption; it contains the special substance "bamboo kun", which has antibacterial and deodorizing effects; The ultraviolet performance is good, so it is widely used in construction, clothing, health care and other fields. Since bamboo fiber is a kind of natural cellulose, its high crystallinity and hydrogen bond structure make it insoluble in common solvents, it is difficult to prepare its nanofibers by electrospinning, and there is no report on the preparation of bamboo fibers by electrospinning technology . [0003] Electrospinn...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01F8/08D01F2/02D01F6/54D01D5/00
Inventor 刘太奇赵小龙
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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