Method for pulverizing natural organic substance into nano-scale fibrous material
A technology of organic substances and fiber materials, which is applied in the chemical post-treatment of fibers, fiber treatment, animal raw materials, etc., and can solve problems such as difficulty in crushing into tiny particle sizes, damage to organic materials, and high destruction energy.
Active Publication Date: 2006-02-15
THE HONG KONG POLYTECHNIC UNIV
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Problems solved by technology
[0004] Usually organic materials exhibit high strength and high elongation, so the required breaking energy is high, and it is difficult to crush / grind / pulverize them into tiny particle sizes with conventional steel or iron pulverizers
At the same time, traditional metal machines will generate a lot of energy during milling, and organic materials are easily damaged if milled for a long time
Method used
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Embodiment Construction
[0029] Detailed Description of Preferred Embodiments
[0030] As an example, a wool fiber with a length of about 60-120 mm and a diameter of about 25 μm is used to pulverize according to the above method, and the microscopic photos of the wool fiber in different steps are as follows Figure 1a to Figure 1e shown.
[0031] Figure 1a Wool fibers with a length of about 60-120 mm and a diameter of about 25 μm are shown. When carrying out step 1, the wool fiber must be wrapped with a mesh bag. Any cleaning agent, such as sodium lauryl sulfate or anionic surfactants, can be used to remove grease from wool fibers. In this embodiment, first add cleaning agent (such as soap or dishwashing detergent, etc.) into the washing machine and put hot water (preferably 50-90° C.) in a large tub or washing machine to submerge the wool without stirring. Let the wool sit in the soapy water for about half an hour. Then set the washer to a spin cycle only, add fresh water, and spin again. Final...
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Abstract
A method for pulverizing natural organic substance into nano-scale fibrous material including steps: Cleaning raw material of natural organic substance from grease and drying it with common equipments. Coarsely pulverizing said prepared natural organic substance with common mechanical milling machine into small piece of a particle size around 500 m in length. Mixing said coarse particles with pure water as a suspension and finely pulverizing it by a professional ultrasonic crusher into fine piece of a particle size smaller than 20 m both in diameter and length. Feeding said fine particles contained suspension with high pressure into a nano collide machine for dividing said suspension into two parts to collide with each other and generate vibration to cause said raw material into nano-scale size. Drying said nano particles with a common spray dryer if dry nano-scale organic substance fibrous particle is in need.
Description
technical field [0001] The invention relates to a crushing method, in particular to a method for crushing natural organic substances into nanoscale fiber materials. Background of the invention [0002] Natural fibers have played an important role in textile materials since ancient times and are still widely used in the modern textile industry due to their unique properties as high-quality textile materials. However, due to the constraints and requirements of the spinning stage, not all fibers can be used for spinning due to the short length of some fibers. Consequently, certain natural fibers such as wool, silk, cotton or hemp are sometimes wasted during processing. Due to the excellent intrinsic properties of these fibers, the development of new methods to repurpose these fibers has great market potential. At the same time, not only the textile industry, but many other industries also need such technologies in terms of new materials, functional designs or applications. ...
Claims
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IPC IPC(8): D01C3/00C08B15/08B02C19/18B02C21/00
CPCB02C19/18B02C21/00
Inventor 李毅胡军岩
Owner THE HONG KONG POLYTECHNIC UNIV