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Mulberry and bamboo composite fiber grafted with modified mulberry fiber and bamboo fiber in ionic liquid and preparation method thereof

An ionic liquid, graft modification technology, applied in the chemical post-treatment of fibers, fiber treatment, cellulose/protein conjugated rayon and other directions, can solve the problem of low dissolution efficiency of mulberry fiber and bamboo fiber, Fiber composite fibers have low efficiency and poor performance, which can solve the problem of shortage of raw materials, abundant raw materials, and mild and easy-to-control reaction conditions.

Active Publication Date: 2017-10-17
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: In view of the low efficiency of dissolving mulberry fiber and bamboo fiber and the poor performance of a single plant fiber material in the prior art, as well as the low efficiency of preparing mulberry fiber and bamboo fiber composite fiber, the present invention provides an ionic liquid intermediate Method for preparing mulberry and bamboo composite fiber by branch modified mulberry fiber and bamboo fiber

Method used

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  • Mulberry and bamboo composite fiber grafted with modified mulberry fiber and bamboo fiber in ionic liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Take mulberry branches and use a knife to remove the bark of mulberry branches and cut them into 2-3cm pieces, take bamboo branches and cut them into 2-3cm pieces with a knife, wash them with tap water, and dry them at 80°C for 24 hours.

[0031] (2) The truncated mulberry branches and bamboo branches were respectively pulverized with a traditional Chinese medicine pulverizer, and then ball-milled with a planetary ball mill at a rate of 100 r / min for 2 hours, and dried at 80° C. for 2 hours to obtain mulberry branch powder and bamboo branch powder.

[0032] (3) Add 2 g of mulberry branch powder and bamboo branch powder to 100ml beaker (a) and beaker (b) respectively, add 120 g / L NaOH solution to the two beakers at a bath ratio of 1:50 to 100 and stir rapidly uniform.

[0033] (4) Seal the above two beakers, place them in an ultrasonic cleaning machine filled with water, and ultrasonicate for 1-2 hours at a temperature of 50°C.

[0034] (5) Wash the mulberry branch ...

Embodiment 2

[0038] (1) Peel the mulberry branches with a knife and cut them into 2-3cm pieces, take the bamboo branches and cut them into 2-3cm pieces with a knife, wash them with tap water, and dry them at 80°C for 24 hours.

[0039] (2) The truncated mulberry branches and bamboo branches were respectively pulverized with a traditional Chinese medicine pulverizer, and then ball milled with a planetary ball mill at a rate of 100 r / min for 2 hours, and dried at 80° C. for 2 hours to obtain mulberry branch powder and bamboo branch powder.

[0040] (3) Add 2g each of mulberry powder and bamboo powder into 100ml beaker (a) and beaker (b), add 120g / L NaOH solution into the two beakers according to the bath ratio of 1:50-100 and stir quickly evenly .

[0041] (4) Seal the above two beakers, place them in an ultrasonic cleaning machine filled with water, and ultrasonicate for 1-2 hours at a temperature of 50°C.

[0042] (5) Wash the mulberry powder and bamboo powder after ultrasonic-assisted Na...

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Abstract

The invention discloses mulberry and bamboo composite fibers obtained after graft modification of mulberry fibers and bamboo fibers in ionic liquid and a preparation method thereof. The preparation method includes the following steps that firstly, the mulberry fibers and the bamboo fibers are subjected to ultrasonic wave aided NaOH treatment and then dissolved in the ionic liquid for a constant temperature reaction, a mulberry fiber solution and a bamboo fiber solution are obtained, and finally the mulberry and bamboo composite fibers are prepared in the ionic liquid and are obtained. According to the preparation method, the ionic liquid is adopted as a solvent, mulberry twig and bamboo twig waste is converted into the high-value high-quality mulberry and bamboo composite fibers, and the method is environmentally friendly, simple, convenient to operate and high in preparation efficiency.

Description

technical field [0001] The invention belongs to the technical field of biochemical industry, and relates to a mulberry and bamboo composite fiber obtained by grafting modified mulberry fiber and bamboo fiber in an ionic liquid and a preparation method thereof. Background technique [0002] In recent years, with the adjustment of product structure and the increase of investment in innovation, new varieties of fibers are changing with each passing day. With the enhancement of human environmental awareness and the improvement of environmental health standards, the development of new environmentally friendly fibers is imperative. In addition to cotton and hemp in nature, trees and grasses also grow a large amount of cellulose polymers. However, the cellulose grown in trees and grasses does not exist in the form of long fibers and cannot be directly used as fibers. These natural cellulose polymers are chemically treated without changing their chemical structure, only changing th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01C1/00
CPCD01C1/00D01F8/02
Inventor 张大钊李强季更生毛杨杨屠洁颜辉
Owner JIANGSU UNIV OF SCI & TECH
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