CN103994947A - Fiber specific gravity testing method - Google Patents
Fiber specific gravity testing method Download PDFInfo
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- CN103994947A CN103994947A CN201410148782.3A CN201410148782A CN103994947A CN 103994947 A CN103994947 A CN 103994947A CN 201410148782 A CN201410148782 A CN 201410148782A CN 103994947 A CN103994947 A CN 103994947A
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- Prior art keywords
- fiber
- pycnometer
- distilled water
- quality
- water
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- 239000000835 fiber Substances 0.000 title claims abstract description 91
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 230000005484 gravity Effects 0.000 title abstract 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000012153 distilled water Substances 0.000 claims abstract description 36
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 238000002791 soaking Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 19
- 238000010998 test method Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 11
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000003556 assay Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Treatment Of Fiber Materials (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention discloses a fiber specific gravity testing method, which comprises: (1) placing a specific gravity bottle filled with distilled water into a beaker holding distilled water, wherein the plane of the distilled water in the beaker exceeds 0.1 of the specific gravity bottle; (2) maintaining a vacuum degree of 99.5% for 0.5 h; (3) maintaining a temperature of 20 DEG C for 24 h, and then weighing to obtain a mass W1; (4) taking 20 g of fibers to be determined, soaking the fibers for 20 min with anhydrous alcohol, removing the oil agent on the fiber surface, and drying for 1 h in a 50 DEG C environment; (5) weighing the fiber mass by using an electronic balance to obtain a mass W2; (6) placing all the dried and weighed fibers into the specific gravity bottle, adding distilled water until the specific gravity bottle is filled with the distilled water, placing the specific gravity bottle into the beaker holding distilled water, making the water plane exceed 0.5 mm the bottle opening of the specific gravity bottle, placing into a vacuum pumping device, controlling the vacuum degree of 99.7%, maintaining for 12 h, placing the specific gravity bottle into a sealed tank, and stabilizing the temperature to a room temperature of 20 DEG C; and (7) calculating the density.
Description
Technical field
The present invention relates to a kind of method of quick test fiber proportion.
Background technology
Density is an important parameter that characterizes fiber physical property, its method of testing is always numerous scholars and pays close attention to, and many-sided exploration and research are carried out, many method of testings are proposed, as patent CN103091201 has proposed a kind of fibre density assay method that utilizes fiber quality analyzer to measure paper pulp fiber particle; And for example patent CN103323360 has proposed to utilize density gradient method to measure a kind of density of cellulose fibre blending product, and then calculates fiber content assay method and device.Sum up, admitted by ISO (International Standards Organization) at present, and the test method of listing relevant criterion in there are three kinds: liquid displacement technique, sink and float method, density gradient column method.But all, because containing large quantity of air in fiber assembly, disturbed test result, has restricted its usable range greatly, cause up till now still without the method for effectively and fast testing fiber proportion.In these three kinds of assay methods, mainly there is the problem of following several respects: in (1) experimentation, the existence that is attached to entrained air bubbles between fiber surface and fibre single thread makes data error larger, how to remove bubble cumbersome, and three kinds of method of testings all exist the problem of this respect; (2) need to solve the impact on density measurement of fiber surface tension effect and temperature variation; (3) must accurately select the required solution of infiltrate in each method, very large for density accuracy and the density range requirement of infiltrate, the error ratio of generation is larger; (4) need to make correct judgement to fiber suspension state, error artificial in this process is very large, and the data error of experiment test is very large, and precision is not high; (5) process of configuration density gradient column is a very loaded down with trivial details process, because the top-down density of density gradient column of configuration might not be linear, time consumption of experimental process is long, and has artificial error for the judgement of fiber suspension state.And the sampling amount of fiber bead only has milligram level, too little.In addition, to the defoaming method of fiber bead yet defectiveness, deaeration is not thorough.
Summary of the invention
The deficiency existing for prior art, technical matters to be solved by this invention is, provides a kind of simple to operate, and testing efficiency is high, and measuring accuracy is high, can be used for measuring fast in a large number the method for testings of the fiber proportion of the mensuration of various fibre densities.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method of testing of fiber proportion, comprises the steps:
One, the pycnometer quality W of water is only housed
1measurement:
(1), the 100ml pycnometer of filling distilled water is put into the 150ml beaker that fills distilled water, and keep the distilled water in beaker not have pycnometer 0.1～1cm;
(2), then beaker is put into vacuum extractor together with pycnometer and vacuumizes, control vacuum tightness and reach 99.5%～99.9%, and keep 0.5～3h;
(3) then pycnometer is taken out and puts into sealable tank as for claiming its quality after balance 24h under 20 DEG C of conditions, obtain the quality W of pycnometer+water
1;
Two, fiber quality W
2measurement:
(4), get fiber 20g to be determined, soak fiber 20min～50min with anhydrous alcohol or ether, remove the finish of fiber surface, then in 50 DEG C～120 DEG C environment drying time at 1h～3h;
(5), dry after by the quality of electronic balance weighing fiber, be labeled as W
2;
Three, the pycnometer quality W of fiber and water is housed
3test:
(6), after dry, claimed the fiber of quality all to put in pycnometer, fill it up with distilled water, pycnometer is put into the beaker that fills distilled water, and make the water surface not have pycnometer bottleneck 0.5mm, and make pycnometer be similar to " submarine " and be equally immersed in water, it is put into vacuum extractor together, control vacuum tightness and reach 99.7%, keep 12 hours, then pycnometer is put into sealable tank, make its temperature stabilization to 20 DEG C of room temperatures;
(7), take the pycnometer quality W that fiber and water are housed
3, utilize Archimedes principle to obtain the density of fiber:
The method of testing of above-mentioned fiber proportion, is characterized in that: the distilled water in described step (1) in beaker did not have pycnometer 0.5cm.
The method of testing of above-mentioned fiber proportion, is characterized in that: in described step 2, vacuum tightness is set to 99.8%, keeps 2 hours.
The method of testing of above-mentioned fiber proportion, is characterized in that: in described step (4), soaking the fiber time with anhydrous alcohol or ether is 35min, and bake out 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 pycnometer method to measure the density of fiber, has simple to operately, and testing efficiency is high, and the feature that measuring accuracy is high can be used for measuring fast in a large number the mensuration of various fibre densities.In vacuum, the water of pycnometer can constantly overflow in the past, needed constantly in pycnometer, to add water, and the water newly adding can overflow because producing bubble part again, even if constantly add water, is also difficult to the proportion with Accurate Measurement fiber.The present invention directly puts into a beaker that fills distilled water by pycnometer, and the distilled water in maintenance beaker did not have pycnometer 0.1～1cm left and right, then beaker being put into vacuum extractor together with pycnometer vacuumizes, because vacuum action bubble can constantly overflow, because the distilled water in beaker did not have pycnometer, therefore when bubble constantly overflows, water can constantly fill into.Vacuum will keep vacuum tightness to reach more than 99.5%, and is not less than 0.5 hour, and vacuum tightness is more high better, and the time, the longer the better.Finally, unload negative pressure pycnometer is taken out, put into sealable tank, after 24 hours, claim its quality as for balance under 20 DEG C of conditions, calculate the proportion of fiber.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further details;
Embodiment 1:
A method of testing for fiber proportion, comprises the steps:
One, the pycnometer quality W of water is only housed
1measurement:
(1), the 100ml pycnometer of filling distilled water is put into the 150ml beaker that fills distilled water, and keep the distilled water in beaker not have pycnometer 0.1cm;
(2), then beaker is put into vacuum extractor together with pycnometer and vacuumizes, control vacuum tightness and reach 99.5%, and keep 3h:
(3) then pycnometer is taken out and puts into sealable tank as for claiming its quality after balance 24h under 20 DEG C of conditions, obtain the quality W of pycnometer+water
1;
Two, fiber quality W
2measurement:
(4), get fiber 20g to be determined, soak fiber 20min with anhydrous alcohol or ether, remove the finish of fiber surface, then in 120 DEG C of environment drying time at 1h;
(5), dry after by the quality of electronic balance weighing fiber, be labeled as W
2;
Three, the pycnometer quality W of fiber and water is housed
3test:
(6), after dry, claimed the fiber of quality all to put in pycnometer, fill it up with distilled water, pycnometer is put into the beaker that fills distilled water, and make the water surface not have pycnometer bottleneck 0.5mm, and make pycnometer be similar to " submarine " and be equally immersed in water, it is put into vacuum extractor together, control vacuum tightness and reach 99.7%, keep 12 hours, then pycnometer is put into sealable tank, make its temperature stabilization to 20 DEG C of room temperatures;
(7), take the pycnometer quality W that fiber and water are housed
3, utilize Archimedes principle to obtain the density of fiber:
Expand because of moisture absorption although fiber can be in various degree in water, but because the deaeration in the method and moisturizing are that a continuous process has reduced the impact of bubble on experimental result significantly, have advantages of that precision is high, favorable reproducibility, good stability, even the proportion of test cotton fiber, its result is also basicly stable between 1.535～1.550, consistent with generally acknowledged both at home and abroad data.Certainly faster with fiber proportions such as the less polypropylene fibre of the method test moisture absorption, terylene, acrylic fibers, polyamide fibres, 3 hours; Data are more stable, and inequality is in 0.003 left and right.
Embodiment 2:
A method of testing for fiber proportion, comprises the steps:
One, the pycnometer quality W of water is only housed
1measurement:
(1), the 100ml pycnometer of filling distilled water is put into the 150ml beaker that fills distilled water, and keep the distilled water in beaker not have pycnometer 0.5cm;
(2), then beaker is put into vacuum extractor together with pycnometer and vacuumizes, control vacuum tightness and reach 99.8%, and keep 2h;
(3) then pycnometer is taken out and puts into sealable tank as for claiming its quality after balance 24h under 20 DEG C of conditions, obtain the quality W of pycnometer+water
1;
Two, fiber quality W
2measurement:
(4), get fiber 20g to be determined, soak fiber 35min with anhydrous alcohol or ether, remove the finish of fiber surface, then in 80 DEG C of environment drying time at 2h;
(5), dry after by the quality of electronic balance weighing fiber, be labeled as W
2;
Three, the pycnometer quality W of fiber and water is housed
3test:
(6), after dry, claimed the fiber of quality all to put in pycnometer, fill it up with distilled water, pycnometer is put into the beaker that fills distilled water, and make the water surface not have pycnometer bottleneck 0.5mm, and make pycnometer be similar to " submarine " and be equally immersed in water, it is put into vacuum extractor together, control vacuum tightness and reach 99.7%, keep 12 hours, then pycnometer is put into sealable tank, make its temperature stabilization to 20 DEG C of room temperatures;
(7), take the pycnometer quality W that fiber and water are housed
3, utilize Archimedes principle to obtain the density of fiber:
Embodiment 3:
A method of testing for fiber proportion, comprises the steps:
One, the pycnometer quality W of water is only housed
1measurement:
(1), the 100ml pycnometer of filling distilled water is put into the 150ml beaker that fills distilled water, and keep the distilled water in beaker not have pycnometer 0.1cm;
(2), then beaker is put into vacuum extractor together with pycnometer and vacuumizes, control vacuum tightness and reach 99.9%, and keep 1h:
(3) then pycnometer is taken out and puts into sealable tank as for claiming its quality after balance 24h under 20 DEG C of conditions, obtain the quality W of pycnometer+water
1;
Two, fiber quality W
2measurement:
(4), get fiber 20g to be determined, soak fiber 50min with anhydrous alcohol or ether, remove the finish of fiber surface, then in 50 DEG C of environment drying time at 3h;
(5), dry after by the quality of electronic balance weighing fiber, be labeled as W
2;
Three, the pycnometer quality W of fiber and water is housed
3test:
(6), after dry, claimed the fiber of quality all to put in pycnometer, fill it up with distilled water, pycnometer is put into the beaker that fills distilled water, and make the water surface not have pycnometer bottleneck 0.5mm, and make pycnometer be similar to " submarine " and be equally immersed in water, it is put into vacuum extractor together, control vacuum tightness and reach 99.7%, keep 12 hours, then pycnometer is put into sealable tank, make its temperature stabilization to 20 DEG C of room temperatures;
(7), take the pycnometer quality W that fiber and water are housed
3, utilize Archimedes principle to obtain the density of fiber:
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, variation, remodeling, interpolation or the replacement made, all should belong to protection scope of the present invention.
Claims (4)
1. a method of testing for fiber proportion, is characterized in that, comprises the steps:
One, the pycnometer quality W of water is only housed
1measurement:
(1), the 100ml pycnometer of filling distilled water is put into the 150ml beaker that fills distilled water, and keep the distilled water in beaker not have pycnometer 0.1～1cm;
(2), then beaker is put into vacuum extractor together with pycnometer and vacuumizes, control vacuum tightness and reach 99.5%～99.9%, and keep 0.5～3h;
(3) then pycnometer is taken out and puts into sealable tank as for claiming its quality after balance 24h under 20 DEG C of conditions, obtain the quality W of pycnometer+water
1;
Two, fiber quality W
2measurement:
(4), get fiber 20g to be determined, soak fiber 20min～50min with anhydrous alcohol or ether, remove the finish of fiber surface, then in 50 DEG C～120 DEG C environment drying time at 1h～3h;
(5), dry after by the quality of electronic balance weighing fiber, be labeled as W
2;
Three, the pycnometer quality W of fiber and water is housed
3test:
(6), after dry, claimed the fiber of quality all to put in pycnometer, fill it up with distilled water, pycnometer is put into the beaker that fills distilled water, and make the water surface not have pycnometer bottleneck 0.5mm, and make pycnometer be similar to " submarine " and be equally immersed in water, it is put into vacuum extractor together, control vacuum tightness and reach 99.7%, keep 12 hours, then pycnometer is put into sealable tank, make its temperature stabilization to 20 DEG C of room temperatures;
(7), take the pycnometer quality W that fiber and water are housed
3, utilize Archimedes principle to obtain the density of fiber:
2. the method for testing of fiber proportion according to claim 1, is characterized in that: the distilled water in described step (1) in beaker did not have pycnometer 0.5cm.
3. the method for testing of fiber proportion according to claim 1, is characterized in that: in described step 2, vacuum tightness is set to 99.8%, keeps 2 hours.
4. the method for testing of fiber proportion according to claim 1, is characterized in that: in described step (4), soaking the fiber time with anhydrous alcohol or ether is 35min, and bake out temperature is 80 DEG C, and drying time is 2h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148782.3A CN103994947B (en) | 2014-04-15 | 2014-04-15 | A kind of method of testing of fiber proportion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148782.3A CN103994947B (en) | 2014-04-15 | 2014-04-15 | A kind of method of testing of fiber proportion |
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| Publication Number | Publication Date |
|---|---|
| CN103994947A true CN103994947A (en) | 2014-08-20 |
| CN103994947B CN103994947B (en) | 2017-01-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596887A (en) * | 2015-02-02 | 2015-05-06 | 东华大学 | Fiber density testing method |
| CN105842109A (en) * | 2016-03-29 | 2016-08-10 | 绍兴文理学院元培学院 | Novel two-component textile fiber component ratio test method |
| CN105842115A (en) * | 2016-03-29 | 2016-08-10 | 绍兴文理学院元培学院 | Novel textile fiber density test method |
| CN106153497A (en) * | 2016-09-09 | 2016-11-23 | 天津工业大学 | A kind of cellulose fibre density measurement method |
| CN107024407A (en) * | 2017-05-04 | 2017-08-08 | 绍兴文理学院元培学院 | A kind of bicomponent fabric component ratio method of testing |
| CN107290252A (en) * | 2017-06-30 | 2017-10-24 | 浙江石金玄武岩纤维股份有限公司 | A kind of method for testing fiber wetness energy |
| CN109916770A (en) * | 2019-03-15 | 2019-06-21 | 同济大学 | A method of measurement polymer particles granule density |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1664554A (en) * | 2005-03-04 | 2005-09-07 | 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 |
| CN103357455A (en) * | 2013-07-23 | 2013-10-23 | 江苏南瓷绝缘子有限公司 | Constant-temperature high-pressure water-bath kettle |
-
2014
- 2014-04-15 CN CN201410148782.3A patent/CN103994947B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1664554A (en) * | 2005-03-04 | 2005-09-07 | 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 |
| CN103357455A (en) * | 2013-07-23 | 2013-10-23 | 江苏南瓷绝缘子有限公司 | Constant-temperature high-pressure water-bath kettle |
Non-Patent Citations (5)
| Title |
|---|
| 国家技术监督局: "《中华人民共和国国家标准》", 1 February 1998 * |
| 孙中伟等: "竹原纤维的密度测试", 《纺织科技进展》 * |
| 王宝瑞等: "纤维密度测定的研究", 《纤维复合材料》 * |
| 邵宇政: "比重瓶法测定PBT树脂密度", 《科技成果管理与研究》 * |
| 高维全等: "比重瓶法测定玄武岩纤维的密度", 《中国纤维》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596887A (en) * | 2015-02-02 | 2015-05-06 | 东华大学 | Fiber density testing method |
| CN105842109A (en) * | 2016-03-29 | 2016-08-10 | 绍兴文理学院元培学院 | Novel two-component textile fiber component ratio test method |
| CN105842115A (en) * | 2016-03-29 | 2016-08-10 | 绍兴文理学院元培学院 | Novel textile fiber density 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 |
| 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 |
| CN106153497A (en) * | 2016-09-09 | 2016-11-23 | 天津工业大学 | A kind of cellulose fibre density measurement method |
| CN106153497B (en) * | 2016-09-09 | 2020-06-26 | 天津工业大学 | Cellulose fiber density determination method |
| CN107024407A (en) * | 2017-05-04 | 2017-08-08 | 绍兴文理学院元培学院 | A kind of bicomponent fabric component ratio method of testing |
| CN107290252A (en) * | 2017-06-30 | 2017-10-24 | 浙江石金玄武岩纤维股份有限公司 | A kind of method for testing fiber wetness energy |
| 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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|---|---|
| CN103994947B (en) | 2017-01-04 |
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