CN113029840A - Determination method for detecting lyocell fiber wet-grinding loss value - Google Patents
Determination method for detecting lyocell fiber wet-grinding loss value Download PDFInfo
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- CN113029840A CN113029840A CN202110276910.2A CN202110276910A CN113029840A CN 113029840 A CN113029840 A CN 113029840A CN 202110276910 A CN202110276910 A CN 202110276910A CN 113029840 A CN113029840 A CN 113029840A
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- fiber
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- wet abrasion
- abrasion value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- Treatment Of Fiber Materials (AREA)
Abstract
A determination method for detecting a lyocell fiber wet abrasion value belongs to the technical field of fiber physical detection. The method adopts a friction method, prepares an experimental instrument, a reagent and a sample, weighs a certain amount of sample to prepare a sample to be tested, and measures a wet abrasion value by the friction method at a certain linear velocity. The advantage of the invention is for the manufacturer using NMMO solvent as raw material for production. The wet abrasion value of the fiber can be detected more conveniently. The method effectively determines the wet abrasion value of the lyocell tow, fills the blank of the detection method in the field, has simple and convenient test mode, and can be widely applied to the industry.
Description
Technical Field
The invention relates to a determination method for detecting a lyocell fiber wet abrasion value, and belongs to the technical field of fiber physical detection.
Background
The lyocell fiber is one kind of regenerated fiber, which is made with wood pulp of plant source as material and through solvent spinning to form cellulose fiber, and is woven into fabric for complete decomposition in clay. The NMMO (N-methylmorpholine oxide) solvent used in the production is non-toxic and pollution-free, can be recycled, the whole fiber production process is environment-friendly, and the solvent recovery rate can reach more than 99%, so the lyocell fiber is called as '21 st century green fiber'. Lyocell fiber is a new material, and the technical problem to be solved is that an instrument and a measuring method for effectively detecting the wet abrasion value of the fiber are lacked in the industry at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a determination method for detecting the wet abrasion value of lyocell fiber.
A determination method for detecting a lyocell fiber wet abrasion value comprises the following steps: the method adopts a friction method, prepares an experimental instrument, a reagent and a sample, weighs a certain amount of sample to prepare a sample to be tested, and measures a wet abrasion value by the friction method at a certain linear velocity.
The advantage of the invention is for the manufacturer using NMMO solvent as raw material for production. The wet abrasion value of the fiber can be detected more conveniently. The method effectively determines the wet abrasion value of the lyocell tow, fills the blank of the detection method in the field, has simple and convenient test mode, and can be widely applied to the industry.
Detailed Description
It will be apparent that those skilled in the art can make many modifications and variations based on the spirit of the present invention.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art.
The following examples are further illustrative in order to facilitate the understanding of the embodiments, and the present invention is not limited to the examples.
Example 1: the wet abrasion value of the tows in the lyocell production system is mainly detected. The wet abrasion value of lyocell fibers was determined to reflect the degree of lyocell fiber fibrillation.
A determination method for detecting the wet abrasion value of lyocell fibers further comprises the following steps:
step 1, sample processing:
cutting each fiber bundle into 30cm in length, weighing about 0.02g, dissolving TAHT 30g/L at 70 deg.C, dissolving TSP 20g/L at 70 deg.C, mixing, soaking the fibers together, crosslinking at 70 deg.C for 3min, reacting for 3min, steaming for 3min, washing with water, and oven drying.
Step 2, determination step:
the friction machine is powered on, white poplin cloth is soaked in water and flatly laid on a stainless steel grinding roller, bubbles cannot exist, the linear speed is set to be 6.0m/mim, fibers are cut into 30cm, one end of the fibers is fixed on an instrument, the other end of the fibers is subjected to a tensile friction test by a load of 9.4g, a switch is turned on to start measurement, the time of fiber friction fracture is counted by a stopwatch, the switch is turned off after the measurement is finished, and the power supply is pulled down.
Step 3, drawing a linear regression equation:
from the plotted linear regression equation, the friction value was found at a mass of 0.0200 g.
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the spirit and scope of the present invention. Therefore, such modifications are also all included in the scope of protection of the present invention.
Claims (2)
1. A method for detecting the wet abrasion value of lyocell fiber is characterized by adopting a friction method, preparing an experimental instrument, a reagent and a sample, weighing a certain amount of sample to prepare a sample to be detected, and measuring the wet abrasion value by using the friction method at a certain linear speed.
2. The method for detecting the wet abrasion value of the lyocell fibers according to claim 1, further comprising the steps of:
step 1, sample processing:
cutting each fiber bundle into 30cm in length, weighing about 0.02g, dissolving TAHT 30g/L at 70 ℃, dissolving TSP 20g/L at 70 ℃, mixing and impregnating the fibers together, carrying out crosslinking at 70 ℃, reacting for 3min, steaming for 3min, and then washing and drying;
step 2, determination step:
the friction machine is switched on, white poplin cloth is soaked in water and flatly laid on a stainless steel grinding roller, bubbles cannot exist, the linear speed is set to be 6.0m/mim, the fiber is cut into 30cm, one end of the fiber is fixed on an instrument, the other end of the fiber is subjected to a tensile friction test by using a 9.4g load, a switch is turned on to start measurement, the time of the fiber friction fracture is counted by a stopwatch, the switch is turned off after the measurement is finished, and the power supply is pulled down;
step 3, drawing a linear regression equation:
from the plotted linear regression equation, the friction value was found at a mass of 0.0200 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276910.2A CN113029840A (en) | 2021-03-15 | 2021-03-15 | Determination method for detecting lyocell fiber wet-grinding loss value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276910.2A CN113029840A (en) | 2021-03-15 | 2021-03-15 | Determination method for detecting lyocell fiber wet-grinding loss value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113029840A true CN113029840A (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110276910.2A Pending CN113029840A (en) | 2021-03-15 | 2021-03-15 | Determination method for detecting lyocell fiber wet-grinding loss value |
Country Status (1)
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| CN (1) | CN113029840A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876587A (en) * | 2022-12-12 | 2023-03-31 | 山东鑫浩冠新材料科技有限公司 | Lyocell fiber fibrillation degree measuring equipment |
| CN116536783A (en) * | 2023-07-06 | 2023-08-04 | 山东鸿泰鼎新材料科技有限公司 | Continuous feeding device for production of lyocell fibers |
-
2021
- 2021-03-15 CN CN202110276910.2A patent/CN113029840A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 党西妹等: "TAHT交联对Lyocell纤维抗原纤化性能的影响", 《合成纤维工业》 * |
| 魏孟媛等: "交联处理对Lyocell纤维抗原纤化性能的影响", 《纤维素科学与技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876587A (en) * | 2022-12-12 | 2023-03-31 | 山东鑫浩冠新材料科技有限公司 | Lyocell fiber fibrillation degree measuring equipment |
| CN115876587B (en) * | 2022-12-12 | 2023-08-29 | 浙江浩铭机械科技有限公司 | Measuring equipment for fibrillation degree of lyocell fibers |
| CN116536783A (en) * | 2023-07-06 | 2023-08-04 | 山东鸿泰鼎新材料科技有限公司 | Continuous feeding device for production of lyocell fibers |
| CN116536783B (en) * | 2023-07-06 | 2023-09-22 | 山东鸿泰鼎新材料科技有限公司 | Continuous feeding device for production of lyocell fibers |
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Effective date of registration: 20220311 Address after: 253200 northwest corner of the intersection of West Outer Ring Road and Yincheng Road, Xiajin County Economic Development Zone, De Zhou City, Shandong Province Applicant after: Shandong Hongtai Dingxin Material Technology Co.,Ltd. Address before: 3 / f-045, huannuo building, 1568 South Ring Road, Changhe street, Binjiang District, Hangzhou, Zhejiang 310000 Applicant before: Hangzhou rongkaisheng Technology Co.,Ltd. |
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Application publication date: 20210625 |