Carbonized fibers and carbonization method thereof

A carbonized fiber and carbonization rate technology, which is applied in the fields of fiber chemical characteristics, chemical instruments and methods, textiles and papermaking, etc., can solve the problems of water resistance or air permeability cannot be improved at the same time, carbonization rate cannot be guaranteed, and application prospects are limited. , to achieve the effect of superior waterproof performance, high carbonization rate and superior air permeability

Inactive Publication Date: 2019-08-27
孔令孝 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, combined with the above existing patents and common knowledge, the existing carbonized fiber / base fabric has the following problems: (1) The carbonization rate cannot be guaranteed, and the carbonization effect is not good, and the strength loss is serious; (2) Water resistance or The air permeability cannot be improved at the same time, and the application prospect is limited

Method used

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  • Carbonized fibers and carbonization method thereof
  • Carbonized fibers and carbonization method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 A carbonized fiber and its carbonization method

[0037] (1) Raw material preparation

[0038] As the raw material, Lyocell fiber is selected;

[0039] The Lyocell fiber is Lyocell industrial filament, the specification is: linear density is 1900 dtex, strength is 90.5N, constant elongation is 4.6% at 66.6N, constant elongation at 73.6N is 4.6%, elongation at break is 7.5%, strength is not The uniform rate is 2.1%, the uneven rate of breaking elongation is 5.77%, and the dry heat shrinkage rate (177°C.10min.0.05CN / dtex) is 0.5%.

[0040] (2) Preparation of base cloth

[0041] The above-mentioned fibers are woven with an air-jet loom or an arrow loom according to the siro spinning process, and then undergo conventional singeing, desizing, scouring, bleaching, mercerizing, dyeing, ammonia fumigation, oxidation, washing, drying and drying. Pre-shrinking process to obtain the base cloth.

[0042] When weaving, the warp density is set at 80-85 threads / m, and th...

Embodiment 2

[0064] Example 2 A carbonized fiber and its carbonization method

[0065] (1) Raw material preparation

[0066] As the raw material, Lyocell fiber is selected;

[0067] The Lyocell fiber is Lyocell industrial filament, the specification is: linear density is 1833 dtex, strength is 88.5N, constant elongation is 3.2% at 66.6N, constant elongation at 73.6N is 4.0%, elongation at break is 6.5%, strength is not The uniform rate is 1.9%, the uneven rate of breaking elongation is 5.4%, and the dry heat shrinkage rate (177°C.10min.0.05CN / dtex) is 0.45%.

[0068] (2) Preparation of base cloth

[0069] The above-mentioned fibers are woven with an air-jet loom or an arrow loom according to the siro spinning process, and then undergo conventional singeing, desizing, scouring, bleaching, mercerizing, dyeing, ammonia fumigation, oxidation, washing, drying and drying. Pre-shrinking process to obtain the base cloth.

[0070] When weaving, the warp density is set at 85-90 threads / m, and th...

Embodiment 3

[0092] Example 3 A carbonized fiber and its carbonization method

[0093] (1) Raw material preparation

[0094] As the raw material, Lyocell fiber is selected;

[0095] The Lyocell fiber is Lyocell industrial filament, the specification is: linear density is 1889 dtex, strength is 89.6N, constant elongation is 3.6% at 66.6N, constant elongation at 73.6N is 4.45%, elongation at break is 6.68%, strength is not The uniform rate is 2.15%, the uneven rate of breaking elongation is 5.6%, and the dry heat shrinkage rate (177°C.10min.0.05CN / dtex) is 0.47%.

[0096] (2) Preparation of base cloth

[0097] The above-mentioned fibers are woven with an air-jet loom or an arrow loom according to the siro spinning process, and then undergo conventional singeing, desizing, scouring, bleaching, mercerizing, dyeing, ammonia fumigation, oxidation, washing, drying and drying. Pre-shrinking process to obtain the base cloth.

[0098] When weaving, the warp density is set at 86-90 threads / m, and...

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Abstract

The invention provides carbonized fibers. The carbonized fibers are formed by opening a carbonized base cloth, the carbonization rate of the obtained carbonized fibers is greater than or equal to 99.996%, and the strength unevenness of the carbonized fibers is less than or equal to 0.66%; the hydrostatic pressure resistance of the carbonized base cloth is 512-524 mm/H2O; and air permeability is 274-280 L/(m2. S), and after washing, the air permeability is 279-303 L/(m2. S). The invention also provides a preparation method of the carbonized fibers. The preparation method comprises the steps ofraw material preparation, base cloth preparation and carbonization activation, in raw material preparation, Lyocell fibers are selected; the carbonized fibers are good in shape stability, not easy todeform, and low in deformation rate after washing; the flame retardant property is improved, and thus, the carbonized fibers have a wide market prospect.

Description

technical field [0001] The invention relates to a carbonized fiber and a carbonization method thereof, belonging to the field of fiber carbonization. Background technique [0002] Since the 21st century, in order to meet people's demand for the functionality of textiles, the development of cellulose fibers has entered a stage of vigorous development, and major enterprises, institutions and scientific research institutions have conducted a lot of research on the improvement of cellulose. [0003] The publication number is CN106637505A, which discloses a method for preparing silicon carbide fibers or fabrics, placing carbon fibers, activated carbon fibers or fabrics thereof, SiO2 and Si in a certain molar ratio, placing SiO2 and Si on the lower part of the corundum reaction boat, and placing carbon on the upper part. fibers, activated carbon fibers or their fabrics; put the reaction boat with raw materials into the reactor, feed inert gas Ar, heat up, react, cool to room tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/16C02F1/28
CPCD01F9/16C02F1/281
Inventor 孔令孝王雅文
Owner 孔令孝
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