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A kind of ultrafine oyster-based fiber and preparation process thereof

A preparation process and fiber technology, which is applied in the field of ultrafine oyster-based fiber and its preparation process, can solve the problems that limit the application of oyster-based fiber, and achieve the effect of excellent performance, enhanced breaking strength and elongation at break

Active Publication Date: 2022-07-12
爱可比(苏州)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the method of preparing ultrafine oyster-based fibers at home and abroad, which limits the further application of oyster-based fibers in high-end fields.

Method used

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  • A kind of ultrafine oyster-based fiber and preparation process thereof
  • A kind of ultrafine oyster-based fiber and preparation process thereof

Examples

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preparation example Construction

[0036] The preparation technology of the ultrafine oyster-based fiber of the present invention, as attached figure 1 shown:

[0037] Include the following steps:

[0038] S1 oyster shell pretreatment: first take the oyster shell, wash the surface with water, place it in a solution containing an oxidant for disinfection, supplement with ultrasonic vibration for 10-20min, ultrasonic power 400-1000W, then immerse the oyster shell in an acid solution and heat it To 60-90℃, keep for 1-2h, pick up and wash and dry;

[0039] Described oxidizing agent is selected from a kind of potassium dichromate, sodium hypochlorite or hydrogen peroxide; Described acid solution is a kind of in dilute hydrochloric acid, dilute sulfuric acid and dilute nitric acid;

[0040]S2 calcination: put the oyster shells after the above pretreatment into a rotary furnace, heat up to 180-220 ° C for 4-8h, and then cool to room temperature;

[0041] S3 pulverization: transfer the calcined oyster shells to a cr...

Embodiment 1

[0052] A preparation technology of ultra-fine oyster-based fiber, comprising the following steps:

[0053] S1 oyster shell pretreatment: first take the oyster shell, wash the surface with water, place it in a solution containing an oxidant for disinfection, supplement with ultrasonic vibration for 10min, ultrasonic power 400W, then immerse the oyster shell in an acidic solution and heat it to 60 ℃, Keep for 1h, pick up and wash and dry;

[0054] Described oxidant is selected from potassium dichromate; Described acid solution is dilute hydrochloric acid;

[0055] S2 calcination: put the pretreated oyster shells into a rotary furnace and heat up to 180 ° C for 4 hours, and then cool to room temperature;

[0056] S3 pulverization: transfer the oyster shell after the calcination treatment to the crusher, carry out primary pulverization, and obtain oyster shell coarse powder after passing through a 300-mesh sieve;

[0057] S4 grinding: transfer the pulverized described oyster she...

Embodiment 2

[0067] A preparation technology of superfine oyster-based fiber, comprising the following steps:

[0068] S1 oyster shell pretreatment: first take the oyster shell, wash the surface with water, place it in a solution containing an oxidant for disinfection, supplement with ultrasonic vibration for 15min, ultrasonic power 750W, then immerse the oyster shell in an acidic solution and heat it to 75 ℃, Keep for 1.5h, wash and dry after picking up;

[0069] The oxidant is selected from sodium hypochlorite; the acidic solution is dilute sulfuric acid;

[0070] S2 calcination: put the pretreated oyster shells into a rotary kiln and heat up to 200°C for 6h, and then cool to room temperature;

[0071] S3 pulverization: transfer the oyster shell after the calcination treatment to the crusher, carry out primary pulverization, and obtain the oyster shell coarse powder after passing through a 400-mesh sieve;

[0072] S4 grinding: transfer the pulverized described oyster shell coarse powde...

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Abstract

The invention belongs to the field of bio-based ultra-fine fibers, and specifically discloses an ultra-fine oyster-based fiber and a preparation process thereof. dtex, the elongation at break of the fiber is 15%-25%; the preparation process comprises steps such as oyster shell pretreatment, calcination, pulverization, grinding, polymerization, granulation, liquid preparation, and silk formation; the oyster shell After being calcined and pulverized, the organic oligomer dispersant and powder surface modifier are used as carriers, combined with a powerful bead mill to use impact force, shear force, and friction force to reduce the powder to 100-800nm, so that oyster-based The fiber front-end process is uniformly polymerized, and the fiber fineness reaches the nanometer level; the process disclosed in the invention fills the gap in the preparation process of the ultrafine oyster-based fiber, and the prepared ultra-fine oyster-based fiber has excellent performance and great application potential.

Description

technical field [0001] The invention belongs to the field of bio-based ultra-fine fibers, and specifically discloses an ultra-fine oyster-based fiber and a preparation process thereof. Background technique [0002] Microfiber composite products have the performance of blocking high-permeability suspended particles, which can greatly improve the filtration efficiency. As a gas phase, liquid filtration or separation medium, it can be used in the pharmaceutical, laboratory, hospital, food, chemical and cosmetic industries, and can also be used to make chemical protective clothing or biological warfare clothing. The electrospun nanofiber mesh sheet with a monofilament diameter of 250nm and a thickness of about 1um is compounded with a spunbond nonwoven fabric. The spunbond component carries the mechanical properties of the filter medium, and the nanofiber mesh component makes the filtration performance of the composite product obvious. Improve; composite nanofiber mesh with wet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/10D01F8/14D01F8/18D01F1/10D01D5/04
CPCD01F8/10D01F8/14D01F8/18D01F1/10D01D5/04
Inventor 王舟
Owner 爱可比(苏州)新材料有限公司