Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high water retention plant cellulose micro/nano fibrils and its preparation method and application

A technology of plant cellulose and nanofibrils, which is applied to artificial filaments in cellulose solution, adding reinforcing agents, etc., to achieve the effects of controllable strength, expanded application range, good moisturizing and strengthening

Active Publication Date: 2020-07-28
SOUTH CHINA UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few reports on high water retention cellulose micro / nanofibrils

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of high water retention plant cellulose micro/nano fibrils and its preparation method and application
  • A kind of high water retention plant cellulose micro/nano fibrils and its preparation method and application
  • A kind of high water retention plant cellulose micro/nano fibrils and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of high water retention plant cellulose micro / nano fibrils, its preparation method is as follows:

[0034] (1) At room temperature (25±1°C), soak 100 g of coniferous wood pulp in deionized water with a pH of 7 for 24 hours (stirring can be used during the soaking process to make it fully swell), and a fully swollen coniferous wood pulp can be obtained. pulp.

[0035] (2) The fully swollen softwood pulp obtained is prepared as softwood pulp with a mass fraction of 5%.

[0036] (3) getting the mass fraction made in step (2) is 20L of coniferous wood pulp of 5%, and acts under the ultrafine particle pulverizer (brand: Japan Zengxing Industrial Co., Ltd., model: MKCA6-2J), and the rotating speed is 3000r / min, the gap between the grinding discs is 20 μm, and after repeated crushing for 20 cycles, high water retention plant cellulose micro / nano fibrils are obtained.

[0037] The method for measuring the water retention value of plant cellulose micro / nano fibrils in ...

Embodiment 2

[0039] A kind of high water retention plant cellulose micro / nano fibrils, its preparation method is as follows:

[0040] (1) At room temperature (25±1°C), take 100 g of softwood pulp and soak it in deionized water with a mass fraction of 1% citric acid solution to adjust the pH to 4.5 for 24 hours (stirring can be added during the soaking process to make it fully moist) Swelling) to obtain fully swollen softwood pulp.

[0041] (2) The fully swollen softwood pulp obtained is prepared as softwood pulp with a mass fraction of 5%.

[0042] (3) get the softwood pulp 20L that the massfraction that makes in the step (2) is 5%, act under the ultrafine pulverizer (brand: Japan Zengxing Sangyo Co., Ltd., model: MKCA6-2J), and the rotating speed is 3000r / min, the gap between the grinding discs is 20 μm, and after repeated crushing for 20 cycles, high water retention plant cellulose micro / nano fibrils are obtained.

[0043] The method for measuring the water retention value of plant ce...

Embodiment 3

[0045] A kind of high water retention plant cellulose micro / nano fibrils, its preparation method is as follows:

[0046] (1) At room temperature (25±1°C), take 100 g of softwood pulp and soak it in deionized water with a mass fraction of 1% sodium hydroxide solution to adjust the pH to 9 for 24 hours (stirring can be supplemented during the soaking process to make it fully swelling) to obtain fully swollen softwood pulp.

[0047] (2) The fully swollen softwood pulp obtained is prepared as softwood pulp with a mass fraction of 5%.

[0048] (3) get the softwood pulp 20L that the massfraction that makes in the step (2) is 5%, act under the ultrafine pulverizer (brand: Japan Zengxing Sangyo Co., Ltd., model: MKCA6-2J), and the rotating speed is 3000r / min, the gap between the grinding discs is 20 μm, and after repeated crushing for 20 cycles, high water retention plant cellulose micro / nano fibrils are obtained.

[0049] The method for measuring the water retention value of plant...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
quality scoreaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high water-preserving plant cellulose micro / nanofibril as well as a preparation method and application thereof. The preparation method of the plant cellulose micro / nanofibrilcomprises the following steps: firstly, putting plant cellulose paper pulp into water with a pH value of 4.5 to 9 for soaking to obtain plant cellulose paper pulp I; secondly, grinding the plant cellulose paper pulp I obtained in the first step by using an ultrafine pulverizer to obtain the plant cellulose micro / nanofibril, wherein the gap between grinding discs of the ultrafine pulverizer is -200mu m to 100mu m. According to the preparation method disclosed by the invention, plant cellulose micro / nanofibrils with different properties are prepared by using a mechanical method; physical properties of the cellulose micro / nanofibril can be controlled by different pH values, different slurry concentrations and different grinding parameters; the prepared plant cellulose micro / nanofibril has the characteristics of controllable water-retaining value, adjustable diameter and length of the fibril and different dry strengths and wet strengths; the high water-preserving plant cellulose micro / nanofibril is suitable for the fields of papermaking, daily chemical industries or paper strengthening.

Description

technical field [0001] The invention belongs to the field of preparation of micro / nano fibrils, and in particular relates to a plant cellulose micro / nano fibril and its preparation method and application. Background technique [0002] With the development of society and the advancement of science and technology, people pay more and more attention to the water retention performance and wet strength performance of paper, and the importance of preparing and processing paper materials that meet people's expectations is becoming more and more prominent. The cellulose fibril product with high safety and environmental protection can be prepared by mechanical grinding method, which has been welcomed by people in recent years. The development and utilization of micro / nano fibrils of plant fibers has become a hotspot in the field of cellulose micro / nano fibrils preparation. [0003] Zhai Huamin domestically refines wheat straw composite organic acid pulp fibers to obtain wheat straw ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/02D21H21/18
CPCD01F2/02D21H21/18
Inventor 王斌康磊李金鹏陈克复
Owner SOUTH CHINA UNIV OF TECH