CN110716034A - Device and method for rapidly evaluating solubility of glass chopped strand mat in styrene - Google Patents
Device and method for rapidly evaluating solubility of glass chopped strand mat in styrene Download PDFInfo
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- CN110716034A CN110716034A CN201911127662.4A CN201911127662A CN110716034A CN 110716034 A CN110716034 A CN 110716034A CN 201911127662 A CN201911127662 A CN 201911127662A CN 110716034 A CN110716034 A CN 110716034A
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- strand mat
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 239000011521 glass Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 60
- 238000001514 detection method Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000013068 control sample Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/386—Glass
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- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention provides a device for rapidly evaluating the solubility of a glass chopped strand mat in styrene, which comprises a transparent container, a lower clamp and a lower clamp, wherein the transparent container is used for containing a styrene solution, and the liquid level of the styrene solution reaches the bottom of the upper clamp; the test device comprises an upper clamp and a lower clamp, wherein a glass fiber chopped strand mat sample is clamped between the upper clamp and the lower clamp; the supporting frame is used for installing the upper clamp; the tray is used for supporting the broken sample and the lower clamp; the lower clamp and the tray are positioned in the transparent container; the length of a glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the glass fiber chopped strand mat sample is (98-102) mm; the ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm. The device can evaluate the good or bad of chopped strand mat dissolubility in styrene fast, can reduce the injury of styrene to the human body. But also improves efficiency.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a device and a method for rapidly evaluating the solubility of a glass chopped strand mat in styrene.
Background
Styrene is a volatile and toxic liquid which is harmful to human bodies, so how to quickly evaluate the solubility of the glass chopped strand mat in styrene is very important, and the contact time with the glass chopped strand mat is shortened.
Disclosure of Invention
In view of this, the invention aims to provide a device and a method for rapidly detecting the solubility of a glass chopped strand mat in styrene, which can rapidly evaluate the solubility of the glass chopped strand mat in styrene and reduce the damage to human bodies.
The invention provides a device for rapidly evaluating the solubility of a glass chopped strand mat in styrene, which comprises a transparent container, a lower clamp and a lower clamp, wherein the transparent container is used for containing a styrene solution, and the liquid level of the styrene solution reaches the bottom of the upper clamp;
the test device comprises an upper clamp and a lower clamp, wherein a glass fiber chopped strand mat sample is clamped between the upper clamp and the lower clamp;
the supporting frame is used for installing the upper clamp;
the tray is used for supporting the broken sample and the lower clamp;
the lower clamp and the tray are positioned in the transparent container;
the length of a glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm;
the ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm.
Preferably, the length of the glass chopped strand mat sample between the upper clamp and the lower clamp is 100mm, and the width of the glass chopped strand mat sample between the upper clamp and the lower clamp is 100 mm.
Preferably, the mass of the lower clamp is (98-102) g; the bottom of lower clamp and the perpendicular distance of tray are 50 mm.
Preferably, the tray is a circular sieve.
Preferably, the volume of the transparent container is at least 5L.
Preferably, the support frame is overlapped on the transparent container.
The invention provides a method for rapidly evaluating the solubility of a glass chopped strand mat in styrene by adopting the device in the technical scheme, which comprises the following steps:
clamping a glass chopped strand mat sample to be tested between an upper clamp and a lower clamp, so that the length of the sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the sample between the upper clamp and the lower clamp is (98-102) mm; then placing the materials into a transparent container filled with styrene solution, starting timing when an upper clamp is contacted with the upper edge of the transparent container, stopping timing when a lower clamp is contacted with a tray, and recording time;
if the recording time is more than 0 and less than or equal to 15s, the solubility of the glass chopped strand mat sample in styrene is good;
if the recording time is more than 15s and less than or equal to 30s, the solubility of the glass chopped strand mat sample in styrene is qualified;
if the recording time is more than 30s, the solubility of the glass chopped strand mat sample in the styrene is unqualified.
Preferably, the content of the glass fiber in the to-be-detected glass fiber chopped strand mat sample is between 95 and 100 weight percent.
Preferably, the number of the glass chopped strand mat samples to be detected is 3-6.
Preferably, the recording time is an average of the test results of a plurality of samples.
The invention provides a device for rapidly evaluating the solubility of a glass chopped strand mat in styrene, which comprises a transparent container, a lower clamp and a lower clamp, wherein the transparent container is used for containing a styrene solution, and the liquid level of the styrene solution reaches the bottom of the upper clamp; the test device comprises an upper clamp and a lower clamp, wherein a glass fiber chopped strand mat sample is clamped between the upper clamp and the lower clamp; the supporting frame is used for installing the upper clamp; the tray is used for supporting the broken sample and the lower clamp; the lower clamp and the tray are positioned in the transparent container; the length of a glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm; the ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm. The device will await measuring the glass chopped strand mats sample centre gripping between last anchor clamps and lower anchor clamps, through the length and the width of control sample, and the quality of lower anchor clamps and the ratio of the vertical distance between the upper limb of transparent container and the anchor clamps, the sample begins to dissolve in styrene solution from last anchor clamps and the top edge of transparent container contact, after waiting for the sample fracture, can drop together with lower anchor clamps, stop the timing when lower anchor clamps and tray contact, come the good or bad of the sample solubility in styrene according to the record time. The device can evaluate the good or bad of chopped strand mat dissolubility in styrene fast, can reduce the injury of styrene to the human body. But also improves efficiency.
Drawings
FIG. 1 is a schematic view of an apparatus for rapidly evaluating the solubility of glass chopped strand mat in styrene according to the present invention;
FIG. 2 is a schematic illustration of a sample of example 1;
fig. 3 is a schematic diagram of the detection process in embodiment 1 of the present invention.
Detailed Description
The invention provides a device for rapidly evaluating the solubility of a glass chopped strand mat in styrene, which comprises a transparent container, a lower clamp and a lower clamp, wherein the transparent container is used for containing a styrene solution, and the liquid level of the styrene solution reaches the bottom of the upper clamp;
the test device comprises an upper clamp and a lower clamp, wherein a glass fiber chopped strand mat sample is clamped between the upper clamp and the lower clamp;
the supporting frame is used for installing the upper clamp;
the tray is used for supporting the broken sample and the lower clamp;
the lower clamp and the tray are positioned in the transparent container;
the length of a glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm;
the ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm.
Referring to fig. 1, fig. 1 is a schematic view of an apparatus for rapidly detecting solubility of a glass chopped strand mat in styrene, where 1 is a transparent container, 2 is a tray, 3 is a lower fixture, 4 is a glass chopped strand mat sample, 5 is a support frame, and 6 is an upper fixture.
The device provided by the invention comprises a transparent container 1, wherein the transparent container is used for containing a styrene solution, and the liquid level of the styrene solution reaches the bottom of an upper clamp. The sample can be immersed in the styrene solution. The mass concentration of the styrene solution is 99.99 percent; d of styrene monomer in styrene solution200.907. In the present invention, in order to improve the accuracy of detection, the volume of the transparent container is preferably at least 5L. In a specific embodiment, the transparent container is a beaker.
The device provided by the invention comprises an upper clamp 6 and a lower clamp 3, wherein the glass chopped strand mat sample 4 is clamped between the upper clamp and the lower clamp.
The device provided by the invention comprises a support frame 5, wherein the support frame 5 is used for installing a clamp. The support frame preferably fixes the upper clamp in a bolt and nut combined mode. The support frame is preferably lapped on the transparent container.
The device provided by the invention comprises a tray 2, wherein the tray is used for holding the broken sample and a lower clamp. In the present invention, the tray 2 is preferably a round sieve. The tray 2 is preferably fixed to the transparent container using several wires. In a particular embodiment, iron wires are preferably used to hang over the edges of the transparent container through the holes of the circular screen.
In the present invention, the lower jig and the tray are located inside the transparent container.
The length of the glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, preferably (99-101) mm, and more preferably 100 mm; the width is (98-102) mm, preferably (99-101) mm, and more preferably 100 mm.
The ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm, and preferably (98-102) g:50 mm. In a specific embodiment, the mass of the lower clamp is (98-102) g; the bottom of lower clamp and the perpendicular distance of tray are 50 mm.
The invention provides a method for rapidly evaluating the solubility of a glass chopped strand mat in styrene by adopting the device in the technical scheme, which comprises the following steps:
clamping a glass chopped strand mat sample to be tested between an upper clamp and a lower clamp, so that the length of the sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the sample between the upper clamp and the lower clamp is (98-102) mm; then placing the materials into a transparent container filled with styrene solution, starting timing when an upper clamp is contacted with the upper edge of the transparent container, stopping timing when a lower clamp is contacted with a tray, and recording time;
if the recording time is less than or equal to 15s, the solubility of the glass chopped strand mat sample in styrene is good;
if the recording time is more than 15s and less than or equal to 30s, the solubility of the glass chopped strand mat sample in styrene is qualified;
if the recording time is more than 30s, the solubility of the glass chopped strand mat sample in the styrene is unqualified.
In the invention, the content of the glass fiber in the glass chopped strand mat sample is between 95 and 100 percent by weight.
The invention preferably cuts 100mm x 140mm samples from the felt roll in a uniformly distributed manner across the width; the distance between the sample and the edge of the felt roll is more than or equal to 10mm, and the long edge is parallel to the length direction of the felt. After clamping, the length of the sample between the upper clamp and the lower clamp is (98-102) mm, preferably (99-101) mm; the width is (98-102) mm, preferably (99-101) mm; in a specific embodiment, the length of the sample between the upper clamp and the lower clamp is 100mm, and the width of the sample between the upper clamp and the lower clamp is 100 mm.
The number of the glass fiber chopped strand mat samples to be detected is 3-6. When a plurality of samples are used, the recording time is preferably an average value of the test results of the plurality of samples. If the number of samples is 3, and the recording time of each is s1, s2 and s3, the recording time is (s1+ s2+ s 3)/3; or if the number of samples is 5, the recording time is s1, s2, s3, s4 and s5, and the recording time is (s1+ s2+ s3+ s4+ s 5)/5.
If the recording time is more than 0 and less than or equal to 15s, the solubility of the glass chopped strand mat sample in styrene is good;
if the recording time is more than 15s and less than or equal to 30s, the solubility of the glass chopped strand mat sample in styrene is qualified;
if the recording time is more than 30s, the solubility of the glass chopped strand mat sample in the styrene is unqualified.
The present invention preferably corrects the arithmetic mean of the plurality of samples to approximately 1 s. A shorter time indicates better solubility of the chopped strand mat in styrene. If the fracture does not occur for more than 30s, the test is stopped, and the sample preparation test is carried out again.
The glass chopped strand mats tested above, which are well soluble and acceptable in styrene, meet the quality requirements of the customers and are not complained of quality problems. The recording time can also reflect the solubility of the glass chopped strand mat in styrene; if the solubility in styrene is good, the dissolution time is less than or equal to 15 s; if the solubility in the styrene is qualified, the dissolution time is between 15s and 30 s; if the solubility in styrene is not acceptable, the dissolution time is greater than 30 s.
To further illustrate the present invention, the following examples are provided to describe in detail an apparatus and method for rapidly evaluating the solubility of glass chopped strand mat in styrene, which are provided by the present invention, but should not be construed as limiting the scope of the present invention.
Example 1
At least five samples (the distance between the sample and the edge is more than or equal to 10mm, and the long edge is parallel to the length direction of the felt sheet) of 100mm multiplied by 140mm shown in figure 2 are cut from the whole width of the felt roll in a distributed and uniform way; FIG. 3 is a schematic diagram of the testing process in example 1 of the present invention, wherein a is the test sample clamped by the fixture, b is the sample put into styrene, and c is the end of the test.
The process is carried out according to the flow shown in FIG. 2: clamping the end part of a glass chopped strand mat sample by adopting an upper clamp and a lower clamp shown in FIG. 1 and ensuring that a rectangular area of 100mm multiplied by 100mm is reserved between the clamps;
placing the circular sieve into a beaker filled with styrene, immersing the clamp and the sample into pure styrene, and ensuring that the liquid level of the styrene solution reaches the bottom of the upper clamp, wherein the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the circular sieve is 50 mm; the mass of the lower clamp is 100 +/-2 g;
starting timing when the upper clamp is contacted with the edge of the beaker, stopping timing when the lower clamp is contacted with the circular sieve, and recording the time shown by a stopwatch, which is shown as(s);
s1 is 7s, s2 is 7s, s3 is 9s, s4 is 8s, s5 is 9s, and the arithmetic mean of the measured values of 5 samples is calculated to be reduced to 1s, (s1+ s2+ s3+ s4+ s5)/5 ═ 8 s.
The test value is less than 8s and less than 15s, which indicates that the glass chopped strand mat sample has good solubility in styrene and meets the use requirements of customers. The device can quickly evaluate the solubility of the chopped strand mat in styrene, and can reduce the harm of the styrene to human bodies.
From the above embodiments, the present invention provides an apparatus for rapidly evaluating the solubility of a glass chopped strand mat in styrene, comprising a transparent container for containing a styrene solution, wherein the liquid level of the styrene solution reaches the bottom of an upper fixture; the test device comprises an upper clamp and a lower clamp, wherein a glass fiber chopped strand mat sample is clamped between the upper clamp and the lower clamp; the supporting frame is used for installing the upper clamp; the tray is used for supporting the broken sample and the lower clamp; the lower clamp and the tray are positioned in the transparent container; the length of a glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm; the ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm. The device will await measuring the glass chopped strand mats sample centre gripping between last anchor clamps and lower anchor clamps, through the length and the width of control sample, and the quality of lower anchor clamps and the ratio of the vertical distance between the upper limb of transparent container and the upper fixture, the sample begins to dissolve in styrene solution, treat the sample fracture back, can drop together with lower anchor clamps, stop the timing when lower anchor clamps contact with the tray, judge the good or bad of sample dissolubility in styrene according to the recording time. The device can evaluate the good or bad of chopped strand mat dissolubility in styrene fast, can reduce the injury of styrene to the human body. But also improves efficiency.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The device for rapidly evaluating the solubility of the glass chopped strand mat in styrene is characterized by comprising a transparent container, a lower clamp and a lower clamp, wherein the transparent container is used for containing a styrene solution, and the liquid level of the styrene solution reaches the bottom of the upper clamp;
the test device comprises an upper clamp and a lower clamp, wherein a glass fiber chopped strand mat sample is clamped between the upper clamp and the lower clamp;
the supporting frame is used for installing the upper clamp;
the tray is used for supporting the broken sample and the lower clamp;
the lower clamp and the tray are positioned in the transparent container;
the length of a glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the glass fiber chopped strand mat sample between the upper clamp and the lower clamp is (98-102) mm;
the ratio of the mass of the lower clamp to the vertical distance between the bottom of the lower clamp and the bottom supporting surface of the tray is (98-102) g, (49.5-50.5) mm.
2. The apparatus of claim 1, wherein the glass chopped strand mat sample between the upper and lower clamps has a length of 100mm and a width of 100 mm.
3. The apparatus of claim 1, wherein the lower clamp has a mass of (98-102) g; the bottom of lower clamp and the perpendicular distance of tray are 50 mm.
4. The apparatus of claim 1, wherein the tray is a circular screen.
5. The device of claim 1, wherein the transparent container has a volume of at least 5L.
6. The apparatus of claim 1, wherein the support frame overlaps the transparent container.
7. A method for rapidly evaluating the solubility of glass chopped strand mats in styrene by using the device of any one of claims 1 to 6, comprising the following steps:
clamping a glass chopped strand mat sample to be tested between an upper clamp and a lower clamp, so that the length of the sample between the upper clamp and the lower clamp is (98-102) mm, and the width of the sample between the upper clamp and the lower clamp is (98-102) mm; then placing the materials into a transparent container filled with styrene solution, starting timing when an upper clamp is contacted with the upper edge of the transparent container, stopping timing when a lower clamp is contacted with a tray, and recording time;
if the recording time is more than 0 and less than or equal to 15s, the solubility of the glass chopped strand mat sample in styrene is good;
if the recording time is more than 15s and less than or equal to 30s, the solubility of the glass chopped strand mat sample in styrene is qualified;
if the recording time is more than 30s, the solubility of the glass chopped strand mat sample in the styrene is unqualified.
8. The method of claim 7, wherein the glass chopped strand mat sample to be tested has a glass fiber content of 95 wt% to 100 wt%.
9. The method according to claim 7, wherein the number of the glass chopped strand mat samples to be tested is 3-6.
10. The method of claim 9, wherein the recording time is an average of the test results of the plurality of samples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911127662.4A CN110716034A (en) | 2019-11-18 | 2019-11-18 | Device and method for rapidly evaluating solubility of glass chopped strand mat in styrene |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911127662.4A CN110716034A (en) | 2019-11-18 | 2019-11-18 | Device and method for rapidly evaluating solubility of glass chopped strand mat in styrene |
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| CN110716034A true CN110716034A (en) | 2020-01-21 |
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| CN201911127662.4A Pending CN110716034A (en) | 2019-11-18 | 2019-11-18 | Device and method for rapidly evaluating solubility of glass chopped strand mat in styrene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398332A (en) * | 2020-03-23 | 2020-07-10 | 电子科技大学 | System and method for representing dissolution amount and dissolution rate of ceramic in liquid glass at high temperature |
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2019
- 2019-11-18 CN CN201911127662.4A patent/CN110716034A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398332A (en) * | 2020-03-23 | 2020-07-10 | 电子科技大学 | System and method for representing dissolution amount and dissolution rate of ceramic in liquid glass at high temperature |
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