CN103994947B - A kind of method of testing of fiber proportion - Google Patents

A kind of method of testing of fiber proportion Download PDF

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Publication number
CN103994947B
CN103994947B CN201410148782.3A CN201410148782A CN103994947B CN 103994947 B CN103994947 B CN 103994947B CN 201410148782 A CN201410148782 A CN 201410148782A CN 103994947 B CN103994947 B CN 103994947B
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fiber
density bottle
quality
density
distilled water
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CN103994947A (en
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马建伟
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Jiangsu Sheng Heng Chemical Fiber Co Ltd
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Qingdao University
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Abstract

The invention discloses the method for testing of a kind of fiber proportion, comprise the steps: (1), the density bottle filling distilled water is put in the beaker filling distilled water, keep the distilled water in beaker not have density bottle 0.1;(2), vacuum 99.5%, keep 0.5h;Claim quality under the conditions of (3) 20 DEG C after 24h, obtain quality W1;(4), take fiber 20g to be determined, with anhydrous alcohol or immersion fiber 20min min, remove the oil preparation of fiber surface, drying time 1h in 50 DEG C of environment;(5), by the quality of electronic balance weighing fiber, for W2;(6) fiber, claiming quality after drying is all put in density bottle, fill it up with distilled water, density bottle is put in the beaker filling distilled water, and make the water surface not have density bottle bottleneck 0.5mm, put into together in vacuum extractor, control vacuum 99.7%, keep 12 hours, being put into by density bottle in hermetically sealed can, temperature stabilization is to room temperature 20 DEG C;(7), density is calculated.

Description

A kind of method of testing of fiber proportion
Technical field
A kind of method that the present invention relates to quick test fiber proportion.
Background technology
Density is the important parameter characterizing fiber physical property, and its method of testing is always numerous scholars and is closed Note, and carried out many explorations and research, it is proposed that many method of testings, as patent CN103091201 proposes one Fiber quality analyzer is utilized to measure the fibre density assay method of paper pulp fiber particle;And for example patent CN103323360 proposes Utilize density gradient method to measure the density of a kind of cellulosic fibre blend product, and then calculate fiber content assay method and dress Put.Sum up, recognized by International Organization for Standardization at present, and the test method listing relevant criterion in has three kinds: liquid displacement Method, sink and float method, density gradient column method.But all because fiber assembly contains large quantity of air, disturbed test result, significantly constrain Its range, causes the method the most still without test fiber proportion efficiently and quickly.In these three assay method, main The problem that there are following several respects: in (1) experimentation, is attached to the existence of entrained air bubbles between fiber surface and fibre single thread Make error in data relatively big, how to remove bubble ratio cumbersome, the problem that three kinds of method of testings all exist this respect;(2) need to solve Certainly fiber surface tension effect and the variations in temperature impact on density measurement;(3) immersion fluid institute in each method must accurately be selected The solution needed, density accuracy and density range for immersion fluid require very big, and the application condition of generation is big;(4) need fibre Dimension suspended state makes correct judgement, and error artificial during being somebody's turn to do is very big, and the error in data of experiment test is very big, and precision is not High;(5) process of configuration density gradient column is a process the most loaded down with trivial details, because the density gradient column of configuration is top-down Density might not be linear, and time consumption of experimental process is long, and it is determined that the presence of artificial error for fiber suspension state.And it is fine The sampling amount of dimension bead only has milligram level, the least.It addition, the most defective to the defoaming method of fiber bead, deaeration is the most thorough.
Summary of the invention
The deficiency existed for prior art, the technical problem to be solved is to provide a kind of simple to operate, surveys Examination efficiency is high, and measuring accuracy is high, can be used for the test side of the fiber proportion of a large amount of mensuration quickly measuring various fibre densities Method.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the method for testing of a kind of fiber proportion, bag Include following steps:
One, only equipped with density bottle quality W of water1Measurement:
(1), the 100ml density bottle filling distilled water is put in the 150ml beaker filling distilled water, and keep beaker In distilled water do not had density bottle 0.1~1cm;
(2), then by beaker put into evacuation in vacuum extractor together with density bottle, control vacuum reach 99.5%~ 99.9%, and keep 0.5~3h;
(3) then take out to put in hermetically sealed can by density bottle and claim its quality as after balancing 24h under the conditions of 20 DEG C, obtain ratio Quality W of weight bottle+water1
Two, fiber quality W2Measurement:
(4), take fiber 20g to be determined, soak fiber 20min~50min with anhydrous alcohol or ether, remove fiber surface Oil preparation, then in 50 DEG C~120 DEG C of environment drying time at 1h~3h;
(5), be dried after by the quality of electronic balance weighing fiber, be labeled as W2
Three, equipped with density bottle quality W of fiber and water3Test:
(6), the fiber claiming quality after drying is all put in density bottle, fill it up with distilled water, density bottle is put into Fill in the beaker of distilled water, and make the water surface not have density bottle bottleneck 0.5mm, make density bottle be similar to " submarine " equally submergence Yu Shuizhong, puts in vacuum extractor together by it, controls vacuum and reaches 99.7%, keeps 12 hours, then by density bottle Put in hermetically sealed can so that it is temperature stabilization is to room temperature 20 DEG C;
(7), density bottle quality W equipped with fiber and water is weighed3, utilize Archimedes principle to obtain the density of fiber:
The method of testing of above-mentioned fiber proportion, is characterized in that: in described step (1), the distilled water in beaker did not had proportion Bottle 0.5cm.
The method of testing of above-mentioned fiber proportion, is characterized in that: in described step 2, vacuum is set to 99.8%, keeps 2 Hour.
The method of testing of above-mentioned fiber proportion, is characterized in that: soak fibre with anhydrous alcohol or ether in described step (4) The dimension time is 35min, and drying temperature is 80 DEG C, and drying time is 2h.
The advantage of the method for testing of fiber proportion of the present invention is: the present invention uses pycnometric method to measure the density of fiber, tool Having simple to operate, testing efficiency is high, the feature that measuring accuracy is high, can be used for a large amount of survey quickly measuring various fibre densities Fixed.In vacuum, the water of density bottle can constantly overflow in the past, needs constantly to add water in density bottle, the water being newly added Partly can overflow, even if constantly adding water because producing bubble again, it is also difficult to accurately to measure the proportion of fiber.The present invention is the most direct Density bottle is put in a beaker filling distilled water, and keep the distilled water in beaker not have density bottle 0.1~1cm left The right side, then puts into evacuation in vacuum extractor by beaker together with density bottle, owing to vacuum action bubble can constantly overflow, by Distilled water in beaker did not had density bottle, and therefore while bubble constantly overflows, water can constantly fill into.Vacuum is wanted Keeping vacuum to reach more than 99.5%, and be not less than 0.5 hour, vacuum is the highest more good, and the time, the longer the better.Finally, unload Density bottle is taken out by negative pressure, puts in hermetically sealed can, as claiming its quality after balancing 24 hours under the conditions of 20 DEG C, calculates the ratio of fiber Weight.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further details;
Embodiment 1:
The method of testing of a kind of fiber proportion, comprises the steps:
One, only equipped with density bottle quality W of water1Measurement:
(1), the 100ml density bottle filling distilled water is put in the 150ml beaker filling distilled water, and keep beaker In distilled water do not had density bottle 0.1cm;
(2), then by beaker put into evacuation in vacuum extractor together with density bottle, control vacuum and reach 99.5%, And keep 3h:
(3) then take out to put in hermetically sealed can by density bottle and claim its quality as after balancing 24h under the conditions of 20 DEG C, obtain ratio Quality W of weight bottle+water1
Two, fiber quality W2Measurement:
(4), take fiber 20g to be determined, soak fiber 20min with anhydrous alcohol or ether, remove the oil preparation of fiber surface, Then in 120 DEG C of environment drying time at 1h;
(5), be dried after by the quality of electronic balance weighing fiber, be labeled as W2
Three, equipped with density bottle quality W of fiber and water3Test:
(6), the fiber claiming quality after drying is all put in density bottle, fill it up with distilled water, density bottle is put into Fill in the beaker of distilled water, and make the water surface not have density bottle bottleneck 0.5mm, make density bottle be similar to " submarine " equally submergence Yu Shuizhong, puts in vacuum extractor together by it, controls vacuum and reaches 99.7%, keeps 12 hours, then by density bottle Put in hermetically sealed can so that it is temperature stabilization is to room temperature 20 DEG C;
(7), density bottle quality W equipped with fiber and water is weighed3, utilize Archimedes principle to obtain the density of fiber:
Although fiber can expand because of moisture absorption in water in various degree, but owing to the deaeration in the method and moisturizing are One continuous print process significantly reduces the bubble impact on experimental result, has precision height, favorable reproducibility, good stability Advantage, even if the proportion of test cotton fiber, its result is also basically stable between 1.535~1.550, with the number generally acknowledged both at home and abroad According to consistent.Certainly the fiber proportions such as the less polypropylene of moisture absorption, terylene, acrylon, chinlon are tested the most faster by the method, 3 hours ?;Data are more stable, and inequality is about 0.003.
Embodiment 2:
The method of testing of a kind of fiber proportion, comprises the steps:
One, only equipped with density bottle quality W of water1Measurement:
(1), the 100ml density bottle filling distilled water is put in the 150ml beaker filling distilled water, and keep beaker In distilled water do not had density bottle 0.5cm;
(2), then by beaker put into evacuation in vacuum extractor together with density bottle, control vacuum and reach 99.8%, And keep 2h;
(3) then take out to put in hermetically sealed can by density bottle and claim its quality as after balancing 24h under the conditions of 20 DEG C, obtain ratio Quality W of weight bottle+water1
Two, fiber quality W2Measurement:
(4), take fiber 20g to be determined, soak fiber 35min with anhydrous alcohol or ether, remove the oil preparation of fiber surface, Then in 80 DEG C of environment drying time at 2h;
(5), be dried after by the quality of electronic balance weighing fiber, be labeled as W2
Three, equipped with density bottle quality W of fiber and water3Test:
(6), the fiber claiming quality after drying is all put in density bottle, fill it up with distilled water, density bottle is put into Fill in the beaker of distilled water, and make the water surface not have density bottle bottleneck 0.5mm, make density bottle be similar to " submarine " equally submergence Yu Shuizhong, puts in vacuum extractor together by it, controls vacuum and reaches 99.7%, keeps 12 hours, then by density bottle Put in hermetically sealed can so that it is temperature stabilization is to room temperature 20 DEG C;
(7), density bottle quality W equipped with fiber and water is weighed3, utilize Archimedes principle to obtain the density of fiber:
Embodiment 3:
The method of testing of a kind of fiber proportion, comprises the steps:
One, only equipped with density bottle quality W of water1Measurement:
(1), the 100ml density bottle filling distilled water is put in the 150ml beaker filling distilled water, and keep beaker In distilled water do not had density bottle 0.1cm;
(2), then by beaker put into evacuation in vacuum extractor together with density bottle, control vacuum and reach 99.9%, And keep 1h:
(3) then take out to put in hermetically sealed can by density bottle and claim its quality as after balancing 24h under the conditions of 20 DEG C, obtain ratio Quality W of weight bottle+water1
Two, fiber quality W2Measurement:
(4), take fiber 20g to be determined, soak fiber 50min with anhydrous alcohol or ether, remove the oil preparation of fiber surface, Then in 50 DEG C of environment drying time at 3h;
(5), be dried after by the quality of electronic balance weighing fiber, be labeled as W2
Three, equipped with density bottle quality W of fiber and water3Test:
(6), the fiber claiming quality after drying is all put in density bottle, fill it up with distilled water, density bottle is put into Fill in the beaker of distilled water, and make the water surface not have density bottle bottleneck 0.5mm, make density bottle be similar to " submarine " equally submergence Yu Shuizhong, puts in vacuum extractor together by it, controls vacuum and reaches 99.7%, keeps 12 hours, then by density bottle Put in hermetically sealed can so that it is temperature stabilization is to room temperature 20 DEG C;
(7), density bottle quality W equipped with fiber and water is weighed3, utilize Archimedes principle to obtain the density of fiber:
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, the art Those of ordinary skill, in the essential scope of the present invention, the change made, retrofit, add or replace, all should belong to the present invention Protection domain.

Claims (4)

1. the method for testing of a fiber proportion, it is characterised in that comprise the steps:
One, only equipped with density bottle quality W of water1Measurement:
(1), the 100ml density bottle filling distilled water is put in the 150ml beaker filling distilled water, and keep in beaker Distilled water did not had density bottle 0.1cm~1cm;
(2), then by beaker put into evacuation in vacuum extractor together with density bottle, control vacuum reach 99.5%~ 99.9%, and keep 0.5h~3h;
(3), then by density bottle taking-up put into and claim its quality after balancing 24h under the conditions of hermetically sealed can is placed in 20 DEG C, obtain proportion Quality W of bottle+water1
Two, fiber quality W2Measurement:
(4), take fiber 20g to be determined, soak fiber 20min~50min with anhydrous alcohol or ether, remove the oil of fiber surface Agent, then dries in 50 DEG C~120 DEG C of environment, and drying time is at 1h~3h;
(5), be dried after by the quality of electronic balance weighing fiber, be labeled as W2
Three, equipped with density bottle quality W of fiber and water3Test:
(6), the fiber claiming quality after drying is all put in density bottle, fill it up with distilled water, density bottle is put into and fills In the beaker of distilled water, and make the water surface not have density bottle bottleneck 0.5mm, make density bottle be immersed in water, it is put into together and takes out In vacuum equipment, control vacuum and reach 99.7%, keep 12 hours, then density bottle is put in hermetically sealed can so that it is temperature Stable to room temperature 20 DEG C;
(7), density bottle quality W equipped with fiber and water is weighed3, utilize Archimedes principle to obtain the density of fiber:
The method of testing of fiber proportion the most according to claim 1, is characterized in that: the steaming in beaker in described step (1) Distilled water there was not density bottle 0.5cm.
The method of testing of fiber proportion the most according to claim 1, is characterized in that: in described step (2), vacuum is arranged It is 99.8%, keeps 2 hours.
The method of testing of fiber proportion the most according to claim 1, is characterized in that: described step uses anhydrous alcohol in (4) Or the ether immersion fiber time is 35min, drying temperature is 80 DEG C, and drying time is 2h.
CN201410148782.3A 2014-04-15 2014-04-15 A kind of method of testing of fiber proportion Expired - Fee Related CN103994947B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104596887A (en) * 2015-02-02 2015-05-06 东华大学 Fiber density testing method
CN105842109B (en) * 2016-03-29 2019-03-29 绍兴文理学院元培学院 A kind of novel two-component textile fabric component ratio test method
CN105842115B (en) * 2016-03-29 2019-03-29 绍兴文理学院元培学院 A kind of new fiber density measurement method
CN106153497B (en) * 2016-09-09 2020-06-26 天津工业大学 Cellulose fiber density determination method
CN107024407B (en) * 2017-05-04 2019-05-07 绍兴文理学院元培学院 A kind of bicomponent fabric component ratio test method
CN107290252B (en) * 2017-06-30 2019-10-11 浙江石金玄武岩纤维股份有限公司 A method of test fiber wetness can
CN109991124A (en) * 2019-03-04 2019-07-09 上海市市政规划设计研究院有限公司 Fibre density measuring method used for asphalt mixture
CN109916770A (en) * 2019-03-15 2019-06-21 同济大学 A method of measurement polymer particles granule density

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JPS57191532A (en) * 1981-05-22 1982-11-25 Toshiba Corp Measuring device for real specific gravity of ceramic powder
CN87210110U (en) * 1987-07-10 1988-06-08 西安冶金建筑学院 Jar (or case) type vaccum device for measuring real density of powder substance
CN1320348C (en) * 2005-03-04 2007-06-06 中国地质大学(武汉) Method for measuring real density of double-density bottle powder
CN202869918U (en) * 2012-10-19 2013-04-10 西安科技大学 Device for testing true density of dust
CN103357455B (en) * 2013-07-23 2015-05-27 江苏南瓷绝缘子股份有限公司 Constant-temperature high-pressure water-bath kettle

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Inventor after: Ma Jianwei

Inventor after: Guo Ya

Inventor after: Guo Kun

Inventor after: Xu Hongxing

Inventor before: Ma Jianwei

Inventor before: Guo Kun

Inventor before: Xu Hongxing

COR Change of bibliographic data
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Effective date of registration: 20180110

Address after: 215228 Jiangsu city of Suzhou province Wujiang city Shengze Nanhuan

Patentee after: Wujiang Zhong Lian warp knitting textile Co., Ltd.

Address before: 266071 Shandong city of Qingdao province Ningxia City Road No. 308

Patentee before: Qingdao University

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180615

Address after: 215200 group 33, Da Xie village, Shengze Town, Wujiang District, Suzhou, Jiangsu

Patentee after: Jiangsu Sheng Heng Chemical Fiber Co., Ltd.

Address before: 215228 Shengze Mau TA village, Wujiang City, Suzhou, Jiangsu

Patentee before: Wujiang Zhong Lian warp knitting textile Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170104

Termination date: 20190415