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PET (polyethylene glycol terephthalate) fiber/mulberry bark composite sound absorbing cotton and preparation method of PET fiber/mulberry bark composite sound absorbing cotton

A technology of mulberry fiber and sound-absorbing cotton, which is applied in the field of non-woven fabrics, can solve problems such as insufficient product adhesion, no flame-retardant treatment, and poor tensile strength, so as to improve sound-absorbing effect, product adhesion, and production efficiency high effect

Inactive Publication Date: 2013-03-13
芜湖跃飞新型吸音材料股份有限公司
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AI Technical Summary

Problems solved by technology

However, there are many deficiencies in the existing sound-absorbing cotton products and their manufacturing methods. The main performances are: the original manual operation, the use of knife stacks, low productivity; no flame-retardant treatment; insufficient adhesion of the product, easy to loose, tension Poor strength, etc.

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
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Embodiment Construction

[0016] Wherein, the modified diatomite is prepared by the following method: put the dried diatomite into a ball mill, add 22% graphite, 1.5% vermiculite powder, 3% sepiolite powder, 4% light Calcium carbonate, 2.5% water glass and 4% polyvinyl alcohol, ball milled for 10 hours, calcined at 1120°C for 2 hours, crushed and ground into 200 mesh powder.

[0017] The preparation method of PET fiber / mulberry fiber composite sound-absorbing cotton comprises the following steps:

[0018] (1) Add PET fiber and mulberry fiber into the cotton blender for mixing. In order to make the fiber soft, reduce the friction between fibers, and prevent static electricity, add emulsifier OP-9, Add O-25 evenly and stir for 22 hours to make the fiber smooth, with good saturation and easy to comb;

[0019] (2) Send the mixed fiber in step (1) to a carding machine to form a fiber web with uniform thickness, the output speed is 120m / min, and the mass per unit area of ​​the output fiber web is 250g / m...

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Abstract

The invention discloses PET (polyethylene glycol terephthalate) fiber / mulberry bark composite sound absorbing cotton, which comprises the following ingredients in parts by weight: 70 to 80 parts of PET fibers, 40 to 50 parts of mulberry bark fibers, 10 to 15 parts of emulsifying agents OP-9, 5 to 10 parts of peregal O-25, 80 to 100 parts of PP (propene polymer), 30 to 40 parts of EVA (ethylene vinyl acetate), 15 to 20 parts of nanometer barite powder, 10 to 15 parts of modified kieselguhr, 2 to 3 parts of stearic acid, 5 to 8 parts of dioctyl phthalate, 4 to 6 parts of decabromodiphenyl ether, 2 to 3 parts of tristearin, 1 to 2 parts of vinyltriethoxysilane, 2 to 3 parts of calcium stearate, 1 to 2 parts of dibasic lead phosphate, 0.5 to 1.5 parts of anti-ageing agents OD (octyl decyl) and 1 to 2 parts of antioxidants DLTP (dilauryl thiodipropionate). The sound absorbing cotton prepared by the invention has the advantages that the appearance evenness is good, the thickness is uniform, the hand feeling is soft, the product bonding degree is good, the tensile performance is high, the sound absorbing performance is excellent, the flame retardant effect is good, and the like.

Description

technical field [0001] The invention relates to nonwoven fabric technology, in particular to a PET fiber / mulberry fiber composite sound-absorbing cotton and a preparation method thereof. Background technique [0002] Noise is one of the three major public hazards that pollute the environment in modern society. Noise directly affects people's health. With the progress of society, people put forward higher and higher requirements for the prevention and control of noise that pollutes the environment. Sound-absorbing cotton can convert the vibration energy of medium and high-frequency noise generated in life into the kinetic energy of the fine denier fibers inside the sound-absorbing cotton, and convert it into heat energy and disappear, achieving the function of sound absorption and noise reduction. Therefore, sound-absorbing cotton has good sound-absorbing, heat-insulating and warm-keeping properties, and has been widely used in the fields of building materials, automobiles an...

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
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Application Information

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IPC IPC(8): D04H1/435D04H1/425D04H1/4382D04H1/70D01F8/06D01F1/10C09C1/28C09C3/06C09C3/10C09C3/04G10K11/162
Inventor 王黎明孙益民章云厉曼
Owner 芜湖跃飞新型吸音材料股份有限公司
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