Preparation method of hollow fiber damping material with lotus root section type air bag adjustment

A damping material and hollow technology, applied in fiber processing, conjugated synthetic polymer artificial filament, textiles and papermaking, etc., can solve the problems of single airbag, single reflection of external vibration frequency and deformation, etc., and achieve excellent mechanical properties, Excellent oxidation resistance, excellent heat resistance effect

Active Publication Date: 2017-09-01
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

[0003] To sum up, the problems existing in the prior art are: the cross-section of the current hollow fiber damping material does not change along the axial dimension, the airbag is too simple, and the response to different external vibration frequencies and deformations is also single. How to make it The damping and vibration reduction requirements to adapt to different external vibration frequencies and deformations are difficult problems to be solved

Method used

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  • Preparation method of hollow fiber damping material with lotus root section type air bag adjustment

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preparation example Construction

[0023] Such as figure 1 As shown, the preparation method of the hollow fiber damping material with coupling airbag adjustment provided by the embodiment of the present invention includes the following steps:

[0024] S101: According to the concentration of the blended polymer being 22%, the blending mass ratio is 40:60, respectively weigh a certain quality of hydrogenated nitrile butadiene rubber raw materials (acrylonitrile content reaches 36%) and polyvinyl chloride raw materials, and measure a certain amount. The volume of organic solvent N'-N'dimethylacetamide is heated and stirred in a constant temperature water bath with the help of a container, the temperature is controlled at 50°C, and it is continuously heated and stirred for 8 hours to dissolve it, and the hollow spinning casting solution is prepared;

[0025] S102: Add the completely dissolved casting solution into the stirring tank of the spinning machine and stir until the material is completely dissolved, then st...

Embodiment 1

[0031] The preparation method of the hollow fiber damping material provided by the embodiment of the present invention with coupling-type airbag regulation includes the following steps:

[0032] Step 1, according to the concentration of the blended polymer is 22%, the blending mass ratio is 40:60, respectively weigh a certain quality of hydrogenated nitrile butadiene rubber raw material (acrylonitrile content reaches 36%) and polyvinyl chloride raw material, and measure A certain volume of organic solvent N'-N'dimethylacetamide is heated and stirred in a constant temperature water bath with the help of a container, and the temperature is controlled at 50°C. It is continuously heated and stirred for 8 hours to dissolve it, and is prepared into a hollow spinning casting solution;

[0033] Step 2: Add the completely dissolved casting solution into the stirring tank of the spinning machine for stirring, stir until the material is completely dissolved, and stand at a constant temper...

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Abstract

The invention belongs to the technical field of hollow fiber damping materials, and discloses a preparation method of a hollow fiber damping material with lotus root section type air bag adjustment. The preparation method comprises the following steps: preparing a hollow spinning film casting solution; adding the completely dissolved film casting solution into a stirring kettle of a spinning machine for stirring; spraying the film casting solution from a spinning jet of the spinning machine, thus spinning hydrogenated butadiene-acrylonitrile rubber hollow fiber; when the hollow fiber passes through a gel bath tank, clamping and pressing the hollow fiber into long and short lotus root sections through two half retaining ring dies with Venturi short tube-shaped inner cavities, and placing the lotus root sections in clean water for soaking, conversion and phase separation; standing the phase conversion-completed lotus root section type hollow fiber, taking out the hollow fiber, and drying the hollow fiber under a room temperature condition, thus obtaining the hollow fiber damping material. An adjustment method which improves the air bag damping of the hollow fiber damping material has important application value, and the problem that an air bag of the hollow fiber, of which the size is not changed along the axial direction, on the section of the hollow fiber damping material is too simple is solved.

Description

technical field [0001] The invention belongs to the technical field of hollow fiber damping materials, and in particular relates to a preparation method of a hollow fiber damping material with coupling-type air bag adjustment. Background technique [0002] With the development of science and technology, the demand for damping materials for vibration and noise reduction is becoming more and more stringent, and there is little research on multi-component damping composite damping materials. Therefore, it is necessary to develop lightweight and high-performance polymer damping materials to satisfy people Demand has become a research hotspot in the field of environmental functional materials; the rational use of damping materials can not only achieve the purpose of reducing vibration and noise of mechanical equipment and partitions, prevent noise from polluting the environment, ensure people's quality of life, but also prolong the service life of equipment. The service life ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/10D01F11/06D01D5/247
CPCD01D5/247D01F8/10D01F11/06
Inventor 李明俊王一方徐永文李梦颖
Owner NANCHANG HANGKONG UNIVERSITY
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