CN109632447A - A kind of extractant and detection method for the detection of elastomer modified asphalt waterproof roll solubles content - Google Patents
A kind of extractant and detection method for the detection of elastomer modified asphalt waterproof roll solubles content Download PDFInfo
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- CN109632447A CN109632447A CN201811420802.2A CN201811420802A CN109632447A CN 109632447 A CN109632447 A CN 109632447A CN 201811420802 A CN201811420802 A CN 201811420802A CN 109632447 A CN109632447 A CN 109632447A
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- Prior art keywords
- extractant
- isoheptane
- dimethyl ether
- waterproof roll
- glycol dimethyl
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4061—Solvent extraction
Abstract
The invention discloses a kind of extractants and detection method for the detection of elastomer modified asphalt waterproof roll solubles content, belong to building materials test technical field, the extractant contains glycol dimethyl ether and isoheptane, and the mass ratio of the glycol dimethyl ether and isoheptane is 1:5~2；The present invention replaces trichloro ethylene to be used as and takes agent using the mixed solvent of glycol dimethyl ether and isoheptane, test result and repeatability similar in available and trichloro ethylene, each component is non-toxic or low-toxic to more environment-friendly, and it is high to the extraction yield of the SBS modified material in waterproof roll, can effectively shorten extraction time.
Description
Technical field
The invention belongs to building materials test technical fields, in particular to a kind of solvable for elastomer modified asphalt waterproof roll
The extractant and detection method of object content detection.
Background technique
Elastomer (SBS) modified asphalt waterproof coiled material executes national standard GB18242-2008, and " elastomer modified asphalt is anti-
Water coiled material ", it is to do coating with s-B-S (SBS) rubber modified asphalt, with glass fiber felt, polyester felt, glass
Reinforced polyester felt is tire base, and a kind of waterproof material haveing excellent performance that two sides is made into coated with isolated material has heat-resisting, resistance to
Cold, corrosion-resistant, anti-aging, the advantages that thermoplasticity is good, stretching resistance is big, elongation percentage is high, tear resistance is strong.
Solubles content is the important indicator and its performance for determining and distinguishing elastomer modified asphalt waterproof roll quality
The essential project indicator in detection.It is provided in GB18242-2008, solubles content answers >=2100g/m2, detection method
According to existing national standards GB/T 328.26-2007, " the 26th part of building waterproof coil test method: asphalt water-proof coiled material can
Molten object content (dip-coat material content) " regulation, use soxhlet extraction experimental rig and heating extraction test method carry out.
Provided in existing national standards GB/T 328.26-2007, the solvent of extraction be trichloro ethylene (chemistry is pure) or other
Suitable solvent, but the range and type of other suitable solvents are not provided, and use trichloro ethylene as extractant, extraction
Time is long, and Central nervous system has anesthetic effect, can also cause liver, kidney, heart, trigeminal neuralgia damage, defend for the world
A kind of carcinogenic substance in the reference of carcinogenic substance inventory edit that raw tissue international cancer research institution announces, trichloro ethylene is to sky
The pollution of gas and water environment is extremely serious, is difficult to dilute in water, is easy to form accumulation in water.
Summary of the invention
The present invention is to overcome problems of the prior art, and providing one kind can for elastomer modified asphalt waterproof roll
The extractant and detection method of molten object content detection replace trichloro ethylene using the mixed solvent of glycol dimethyl ether and isoheptane
As taking agent, can be obtained with test result and repeatability similar in trichloro ethylene, each component be it is non-toxic or low-toxic to environment more
Add close friend, and it is high to the extraction yield of the SBS modified material in waterproof roll, can effectively shorten extraction time.
The present invention is to solve above-mentioned problems of the prior art, is adopted the following technical scheme that.
A kind of extractant for the detection of elastomer modified asphalt waterproof roll solubles content, which is characterized in that contain
The mass ratio of glycol dimethyl ether and isoheptane, the glycol dimethyl ether and isoheptane is 1:5~2.
Further, the mass ratio of the glycol dimethyl ether and isoheptane is 1:3.
Further, also contain trifluoroethanol, on the basis of the gross mass of glycol dimethyl ether and isoheptane, the trifluoro
The mass fraction of ethyl alcohol is 0.1~1%.
Further, on the basis of the gross mass of glycol dimethyl ether and isoheptane, the mass fraction of the trifluoroethanol
It is 0.5%.
A kind of detection method for elastomer modified asphalt waterproof roll soluble matter, which is characterized in that including following step
It is rapid:
(1) prepared by extractant: measuring glycol dimethyl ether, isoheptane and trifluoroethanol according to the proportion, is configured to extractant；
(2) test material preparation: to coiled material carry out intercepting process, on coiled material away from the above interception size of edge 100mm be (100
± 1) mm × (100 ± 1) square-form test sample；
Test specimen at least places processing 20h under conditions of (23 ± 2) DEG C and relative temperature 30%~70% before the test；
(3) test specimen is wrapped with dried filter paper, is tied with line, weighing its quality is M1；The test specimen bandaged is put
Enter in extractor, Solvent quantity is flask capacity 1/2~2/3, carries out heating water bath extraction, is extracted to the extractant the of reflux
It is careful to take out filter paper packet until once becoming light color, it not rupture, placing 30min or more in air makes extractant volatilize；It puts
Enter dry 2h in the convection oven of (105 ± 2) DEG C, then takes out to be put into drier and be cooled to room temperature；By filter paper packet from drying
Taking out in device and weighing its quality is M2。
It further, further include scratching in step (2), the scratching is set to set-down location after intercepting process
Before reason, multiple latticed scratches are marked in the square-form test sample double-sided surface that intercepting process obtains.
Further, the lattice number of the latticed scratch is 16 or 25.
Compared with the existing technology, the present invention achieve it is following the utility model has the advantages that
1, extractant of the invention replaces trichloro ethylene as bullet using the mixed solvent of glycol dimethyl ether and isoheptane
Property the detection of modified asphalt waterproof roll solubles content extractant, can be obtained and test result and again similar in trichloro ethylene
Renaturation, each component is non-toxic or low-toxic to more environment-friendly, and its extraction to the SBS modified material in waterproof roll
Rate is high, can effectively shorten extraction time.
2, in extractant of the invention also be added with trifluoroethanol, trifluoroethanol can assist improve glycol dimethyl ether with it is different
The specificity that the mixed system that heptane is formed extracts soluble matter in waterproof roll improves extraction efficiency.
3, the boiling point of the glycol dimethyl ether in extractant of the invention, isoheptane and trifluoroethanol is below the boiling point of water
The temperature and temperature control needs of extraction process can be met using heating water bath, the subsequent dry required temperature low time is short.
4, detection method of the invention carries out scratching to it in test material preparation, can increase extractant and SBS is modified
The contact area of material, further reduced extraction time.
Specific embodiment
The technical solution in embodiment will be clearly and completely described below.Obviously, described embodiment is only
It is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment 1
(1) prepared by extractant: being mixed according to glycol dimethyl ether with the mass ratio of isoheptane for 1:2, is configured to extract
Take agent.
(2) test material preparation: to coiled material carry out intercepting process, on coiled material away from edge 100mm or more intercept 3 having a size of
(100 ± 1) mm × (100 ± 1) square-form test sample；
Test specimen at least places processing 20h under conditions of (23 ± 2) DEG C and relative temperature 30%~70% before the test.
(3) test specimen is wrapped with dried filter paper, is tied with line, weighing its quality is M1；The test specimen bandaged is put
Enter in extractor, Solvent quantity is flask capacity 1/2~2/3, carries out heating water bath extraction, is extracted to the extractant the of reflux
It is careful to take out filter paper packet until once becoming light color, it not rupture, placing 30min or more in air makes extractant volatilize；It puts
Enter dry 2h in the convection oven of (105 ± 2) DEG C, then takes out to be put into drier and be cooled to room temperature；By filter paper packet from drying
Taking out in device and weighing its quality is M2。
(4) solubles content: A=(M is calculated1-M2)×100(g/m2), 3 test specimens are tested, its arithmetic mean of instantaneous value conduct is taken
Final result.Test result is as shown in table 1.
Embodiment 2
Embodiment 2 is identical as the test material preparation of embodiment 1 and extracting process, and difference is: when prepared by extractant, according to second
Glycol dimethyl ether is that 1:3 is mixed with the mass ratio of isoheptane, is configured to extractant.Test result is as shown in table 1.
Embodiment 3
Embodiment 3 is identical as the test material preparation of embodiment 1 and extracting process, and difference is: when prepared by extractant, according to second
Glycol dimethyl ether is that 1:5 is mixed, and the gross mass of glycol dimethyl ether and isoheptane is added with the mass ratio of isoheptane
0.5% trifluoroethanol, is configured to extractant.Test result is as shown in table 1.
Embodiment 4
Embodiment 4 is identical as the test material preparation of embodiment 1 and extracting process, and difference is: when prepared by extractant, according to second
Glycol dimethyl ether is that 1:3 is mixed, and total matter of glycol dimethyl ether and isoheptane is added with the mass ratio of 2- methylpentane
The trifluoroethanol of amount 1%, is configured to extractant.Test result is as shown in table 1.
Embodiment 5
Embodiment 5 is identical as the extracting process of embodiment 1, and difference is:
(1) it when prepared by extractant, is mixed according to glycol dimethyl ether with the mass ratio of isoheptane for 1:2, and be added
The trifluoroethanol of the gross mass 0.1% of glycol dimethyl ether and isoheptane, is configured to extractant；
(2) test material preparation marks latticed scratch to test specimen double-sided surface, and the lattice number of latticed scratch is 25；
Test result is as shown in table 1.
Embodiment 6
Embodiment 6 is identical as the extracting process of embodiment 1, and difference is:
(1) it when prepared by extractant, is mixed according to glycol dimethyl ether with the mass ratio of isoheptane for 1:3, and be added
The trifluoroethanol of the gross mass 0.5% of glycol dimethyl ether and 2- methylpentane, is configured to extractant；
(2) test material preparation marks latticed scratch to test specimen double-sided surface, and the lattice number of latticed scratch is 16；
Test result is as shown in table 1.
Comparative example
Comparative example is identical as the test material preparation of embodiment 1 and extracting process, and difference is: being allocated as using trichloro ethylene single group
For extractant.Test result is as shown in table 1.
1 embodiment of table and comparative example test result
From table 1 it follows that using the mixed solvent of glycol dimethyl ether and isoheptane of the invention as extractant,
Not only test result similar in available and trichloro ethylene, but also the extraction time 22% in solvable analyte detection test can be shortened
Left and right；And adding trifluoroethanol can assist improving mixed system that glycol dimethyl ether and isoheptane are formed to can in waterproof roll
The specificity of molten object extraction, improves extraction efficiency；Scratching can increase the contact area of extractant Yu SBS modified material, into
One step reduces extraction time.
Claims (7)
1. a kind of extractant for the detection of elastomer modified asphalt waterproof roll solubles content, which is characterized in that contain second
The mass ratio of glycol dimethyl ether and isoheptane, the glycol dimethyl ether and isoheptane is 1:5~2.
2. a kind of extraction for the detection of elastomer modified asphalt waterproof roll solubles content according to claim 1
Agent, which is characterized in that the mass ratio of the glycol dimethyl ether and isoheptane is 1:3.
3. described in any item a kind of for the inspection of elastomer modified asphalt waterproof roll solubles content according to claim 1~2
The extractant of survey, which is characterized in that also contain trifluoroethanol, on the basis of the gross mass of glycol dimethyl ether and isoheptane, institute
The mass fraction for stating trifluoroethanol is 0.1~1%.
4. a kind of extraction for the detection of elastomer modified asphalt waterproof roll solubles content according to claim 3
Agent, which is characterized in that on the basis of the gross mass of glycol dimethyl ether and isoheptane, the mass fraction of the trifluoroethanol is
0.5%.
5. a kind of detection method for elastomer modified asphalt waterproof roll soluble matter, which comprises the following steps:
(1) prepared by extractant: measuring glycol dimethyl ether, isoheptane and trifluoroethanol according to the proportion, is configured to extractant；
(2) test material preparation: to coiled material carry out intercepting process, on coiled material away from the above interception size of edge 100mm be (100 ± 1)
Mm × (100 ± 1) square-form test sample；
Test specimen at least places processing 20h under conditions of (23 ± 2) DEG C and relative temperature 30%~70% before the test；
(3) test specimen is wrapped with dried filter paper, is tied with line, weighing its quality is M1；The test specimen bandaged is put into extraction
In device, Solvent quantity is flask capacity 1/2~2/3, carries out heating water bath extraction, and the extractant for being extracted to reflux becomes for the first time
It is careful to take out filter paper packet until at light color, it not rupture, placing 30min or more in air makes extractant volatilize；It is put into (105
± 2) dry 2h in convection oven DEG C, then takes out to be put into drier and is cooled to room temperature；Filter paper packet is taken from drier
Weighing its quality out is M2。
6. a kind of detection method for elastomer modified asphalt waterproof roll soluble matter according to claim 5, special
Sign is that step further includes scratching in (2), and the scratching is set to after intercepting process before placement processing,
The square-form test sample double-sided surface that intercepting process obtains marks multiple latticed scratches.
7. a kind of detection method for elastomer modified asphalt waterproof roll soluble matter according to claim 6, special
Sign is that the lattice number of the latticed scratch is 16 or 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420802.2A CN109632447B (en) | 2018-11-27 | 2018-11-27 | Extracting agent for detecting soluble matter content of elastomer modified asphalt waterproof coiled material and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420802.2A CN109632447B (en) | 2018-11-27 | 2018-11-27 | Extracting agent for detecting soluble matter content of elastomer modified asphalt waterproof coiled material and detection method |
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| Publication Number | Publication Date |
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| CN109632447A true CN109632447A (en) | 2019-04-16 |
| CN109632447B CN109632447B (en) | 2021-06-18 |
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| CN201811420802.2A Active CN109632447B (en) | 2018-11-27 | 2018-11-27 | Extracting agent for detecting soluble matter content of elastomer modified asphalt waterproof coiled material and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665214A (en) * | 2020-07-23 | 2020-09-15 | 江西省交通科学研究院 | Method for measuring respective mixing amounts of SBS (styrene butadiene styrene) modifier and SBR (styrene butadiene rubber) modifier in modified asphalt |
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Cited By (2)
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|---|---|---|---|---|
| CN111665214A (en) * | 2020-07-23 | 2020-09-15 | 江西省交通科学研究院 | Method for measuring respective mixing amounts of SBS (styrene butadiene styrene) modifier and SBR (styrene butadiene rubber) modifier in modified asphalt |
| CN111665214B (en) * | 2020-07-23 | 2023-03-28 | 江西省交通科学研究院 | Method for measuring respective mixing amounts of SBS (styrene butadiene styrene) modifier and SBR (styrene butadiene rubber) modifier in modified asphalt |
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