CN109836597A - Cotton-shaped expanded polyethylene alcohol and preparation method thereof - Google Patents
Cotton-shaped expanded polyethylene alcohol and preparation method thereof Download PDFInfo
- Publication number
- CN109836597A CN109836597A CN201711217057.7A CN201711217057A CN109836597A CN 109836597 A CN109836597 A CN 109836597A CN 201711217057 A CN201711217057 A CN 201711217057A CN 109836597 A CN109836597 A CN 109836597A
- Authority
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- China
- Prior art keywords
- cotton
- expanded polyethylene
- polyethylene alcohol
- shaped expanded
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 30
- -1 polyethylene Polymers 0.000 title claims abstract description 30
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000009736 wetting Methods 0.000 claims abstract description 10
- 238000004090 dissolution Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000008595 infiltration Effects 0.000 claims description 5
- 238000001764 infiltration Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 11
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 11
- 238000011017 operating method Methods 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 9
- 239000000523 sample Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical class CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Abstract
The invention discloses a kind of cotton-shaped expanded polyethylene alcohol and preparation method thereof, cotton-shaped expanded polyethylene alcohol, bulk density is 0.02~0.1g/cm3, wetting velocity is that the solution rate at 1~10 minute, 97~100 DEG C is 5~20 minutes.Expanded polyethylene alcohol floccule provided by the invention, the shortcomings that influence solution rate such as not only overcoming the sedimentation of polyvinyl alcohol course of dissolution, viscous wall, unite, agglomerate, and wetting velocity and solution rate also greatly improve, it is compressed into as after block, breaking strength substantially reduces, it is easy to use, operating method is simple and easy, is convenient for industrializing implementation.
Description
Technical field
The present invention relates to a kind of expanded polyethylene alcohol and preparation method thereof.
Background technique
Polyvinyl alcohol, it is tasteless.It is dissolved in water, does not dissolve in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethanes, four chlorinations
Carbon, acetone, ethyl acetate, methanol, ethylene glycol etc..It is slightly soluble in dimethyl sulfoxide.
Polyvinyl alcohol is important industrial chemicals, for manufacturing Pioloform, polyvinyl acetal, resistance to gasoline pipeline and vinylon synthesis
Fiber, fabric-treating agent, emulsifier, paper coating, adhesive etc..
Currently, industrial goods polyvinyl alcohol, purity 92%, remaining is low boiling point volatile matter, be white plates, it is cotton-shaped or
Pulverulent solids.
When as the raw material of industry, needing to be dissolved becomes aqueous solution.Due to sheet, cotton-shaped or pulverulent solids poly-
The density of vinyl alcohol is 1.27~1.31g/cm3.Therefore, when dissolving in water, dissolution equipment bottom, or even bonding can be deposited in
In dissolution equipment bottom, and it is small with the contact area of water, and solution rate is affected.
In order to solve the problem above-mentioned, the Chinese patent of the first Patent No. 201210586471.6 of applicant is provided
A kind of expanded polyethylene alcohol, still, the patented product in actual use, especially in industrialized production use process, out
It is now suspended in above liquid completely, causes wetting velocity slow, directly influence solution rate, need to improve.
Summary of the invention
The object of the present invention is to provide a kind of cotton-shaped expanded polyethylene alcohol and preparation method thereof, to overcome the prior art to exist
Defect.
Cotton-shaped expanded polyethylene alcohol of the present invention, bulk density are 0.02~0.1g/cm3, wetting velocity be 1~
Following method can be used for bulk density described in 5~20 minutes in solution rate at 10 minutes, 97~100 DEG C: from 0.20
~0.40 meter of height allows sample freely to fall by the way that a funnel is quantitative, is filled in a certain container, in just filling after the completion of institute
The mass per volume measured.
The wetting velocity can be used following method and be detected:
In a room temperature water container equipped with 2/3 liquid level, the sample for being less than liquid volume 2/3 is put into and examines sample in container
The time that product submerge.
The solution rate can be used following method and be detected:
The sample of infiltration is placed in a container (less than the sample of liquid volume 2/3), container is heated, temperature reaches
Start timing when to 97 DEG C or more, observation sample dissolves situation, is all molten when observing that container does not have the solid of sample
Solution, timing terminate.This time is solution rate.
Term " infiltration " refers to that cotton-shaped expanded polyethylene alcohol is immersed in the water, and suctions moisture content and is sufficiently swollen；Infiltration and dissolution
Be it is entirely different, dissolved cotton-shaped expanded polyethylene alcohol be it is colorless and transparent, the cotton-shaped expanded polyethylene alcohol after infiltration is
Translucent；
The preparation method of cotton-shaped expanded polyethylene alcohol of the present invention, includes the following steps:
By expanded polyethylene alcohol, carry out being crushed to bulk density being 0.02~0.1g/cm by crushing plant3, can obtain
Obtain the cotton-shaped expanded polyethylene alcohol；
Chinese patent can be used in the expanded polyethylene alcohol, and method disclosed in Patent No. 201210586471.6 carries out
Preparation；
Expanded polyethylene alcohol floccule provided by the invention not only overcomes the sedimentation of polyvinyl alcohol course of dissolution, viscous wall, embraces
The shortcomings that group, agglomeration etc. influence solution rate, and wetting velocity and solution rate also greatly improve, and are compressed into as bulk
After object, breaking strength is substantially reduced, and is easy to use, and operating method is simple and easy, is convenient for industrializing implementation.
Detailed description of the invention
Fig. 1 is the electromicroscopic photograph of the product of embodiment 1.
Specific embodiment
Embodiment 1
The raw material of use:
The expanded polyethylene alcohol of the preparation of method disclosed in the Chinese patent of Patent No. 201210586471.6,
Specific surface area is industrial goods polyvinyl alcohol (PVA), and the trade mark is 4 times of 1799 particles, granule density 0.85g/cm3；
The product that the crushing plant used manufactures for adret chemical industry equipment Co., Ltd., Factory；
By raw material puffed polyvinyl alcohol in the crushing plant, being crushed to bulk density is 0.1g/cm3, can obtain
Obtain the cotton-shaped expanded polyethylene alcohol；
Testing result is as follows:
Bulk density is 0.1g/cm3, wetting velocity is that the solution rate at 2 minutes, 98 DEG C is 10 minutes.
Embodiment 2
The raw material of use:
The expanded polyethylene alcohol of the preparation of method disclosed in the Chinese patent of Patent No. 201210586471.6, specific surface area
It is industrial goods polyvinyl alcohol (PVA), the trade mark is 3.5 times of 2499 particles, granule density 0.86g/cm3。
The crushing plant used is turntable crusher, using the product of adret chemical industry equipment Co., Ltd., Factory manufacture；
By raw material puffed polyvinyl alcohol in the crushing plant, being crushed to bulk density is 0.02g/cm3, can obtain
Obtain the cotton-shaped expanded polyethylene alcohol；
Testing result is as follows:
Bulk density is 0.02g/cm3, wetting velocity is that the solution rate at 9 minutes, 99 DEG C is 15 minutes.
Claims (6)
1. cotton-shaped expanded polyethylene alcohol, which is characterized in that bulk density is 0.02~0.1g/cm3。
2. cotton-shaped expanded polyethylene alcohol according to claim 1, which is characterized in that wetting velocity is 1~10 minute.
3. cotton-shaped expanded polyethylene alcohol according to claim 1, which is characterized in that the solution rate at 97~100 DEG C is 5
~20 minutes.
4. cotton-shaped expanded polyethylene alcohol according to claim 2, which is characterized in that the solution rate at 97~100 DEG C is 5
~20 minutes.
5. cotton-shaped expanded polyethylene alcohol according to claim 4, which is characterized in that the bulk density can be used as follows
Method: allow sample freely to fall by the way that a funnel is quantitative from 0.20~0.40 meter of height, be filled in a certain container, rigid
Measured mass per volume, the wetting velocity can be used following method and detected after the completion of filling:
In a room temperature water container equipped with 2/3 liquid level, the sample for being less than liquid volume 2/3 put into container to examine sample complete
Portion's water-immersed time；The solution rate can be used following method and be detected: the sample of infiltration is placed on an appearance
In device, sample is less than liquid volume 2/3, heats to container, and temperature starts timing when reaching 97 DEG C or more, and observation sample is molten
Situation is solved, when observing that container does not have the solid of sample, is terminated for all dissolution, timing.This time is solution rate.
6. the cotton-shaped expanded polyethylene alcohol of described in any item cotton-shaped expanded polyethylene alcohol according to claim 1~5
Preparation method, which comprises the steps of:
By expanded polyethylene alcohol, carry out being crushed to bulk density being 0.02~0.1g/cm by crushing plant3, can be obtained described
Cotton-shaped expanded polyethylene alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217057.7A CN109836597A (en) | 2017-11-28 | 2017-11-28 | Cotton-shaped expanded polyethylene alcohol and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217057.7A CN109836597A (en) | 2017-11-28 | 2017-11-28 | Cotton-shaped expanded polyethylene alcohol and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109836597A true CN109836597A (en) | 2019-06-04 |
Family
ID=66881090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711217057.7A Pending CN109836597A (en) | 2017-11-28 | 2017-11-28 | Cotton-shaped expanded polyethylene alcohol and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109836597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112094366A (en) * | 2020-09-27 | 2020-12-18 | 安徽皖维高新材料股份有限公司 | Preparation method of easily-soluble flocculent polyvinyl alcohol |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081880A (en) * | 2007-07-12 | 2007-12-05 | 四川大学 | Preparation of highly water-soluble polyvinyl alcohol |
| CN101804378A (en) * | 2010-03-01 | 2010-08-18 | 朱建军 | Polyvinyl alcohol micropowder-type dry powder production process with high product yield |
| CN103030909A (en) * | 2012-12-28 | 2013-04-10 | 上海金树树脂粉末有限公司 | Expanded polyvinyl alcohol and preparation method thereof |
| CN104364304A (en) * | 2012-04-13 | 2015-02-18 | 巴斯夫欧洲公司 | Method for producing expanded granules |
-
2017
- 2017-11-28 CN CN201711217057.7A patent/CN109836597A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081880A (en) * | 2007-07-12 | 2007-12-05 | 四川大学 | Preparation of highly water-soluble polyvinyl alcohol |
| CN101804378A (en) * | 2010-03-01 | 2010-08-18 | 朱建军 | Polyvinyl alcohol micropowder-type dry powder production process with high product yield |
| CN104364304A (en) * | 2012-04-13 | 2015-02-18 | 巴斯夫欧洲公司 | Method for producing expanded granules |
| CN103030909A (en) * | 2012-12-28 | 2013-04-10 | 上海金树树脂粉末有限公司 | Expanded polyvinyl alcohol and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112094366A (en) * | 2020-09-27 | 2020-12-18 | 安徽皖维高新材料股份有限公司 | Preparation method of easily-soluble flocculent polyvinyl alcohol |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190604 |
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| RJ01 | Rejection of invention patent application after publication |