CN103553387A - Ventilating anti-seepage sand and preparation method thereof - Google Patents
Ventilating anti-seepage sand and preparation method thereof Download PDFInfo
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- CN103553387A CN103553387A CN201310469435.6A CN201310469435A CN103553387A CN 103553387 A CN103553387 A CN 103553387A CN 201310469435 A CN201310469435 A CN 201310469435A CN 103553387 A CN103553387 A CN 103553387A
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- sand
- tetrafluoroethylene
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Abstract
The invention discloses a ventilating anti-seepage sand, comprising, by weight, 97 to 99 parts of raw sand and 1 to 3 parts of polytetrafluoroethylene. According to the invention, the characteristic that polytetrafluoroethylene hardly infiltrates into any liquid is utilized, a film coating process is employed to coat the external surface of the raw sand with polytetrafluoroethylene, so the effects of water prevention, prevention of organic liquid and acid-base liquid and the like are obtained. Furthermore, the invention discloses a preparation method for the ventilating anti-seepage sand. The method is simple to operate and can conveniently prepare the ventilating anti-seepage sand by uniformly coating the external surface of the raw sand with a polytetrafluoroethylene film.
Description
Technical field
The present invention relates to a kind of antiseepage sand for desert planting, lakebed antiseepage etc., especially a kind of for desert planting, lakebed antiseepage etc. simultaneously can waterproof, the antiseepage sand of anti-organic liquid and soda acid liquid.
Background technology
Ventilation anti-seepage sand is by " strengthening the surface tension of water " principle, take desert wind sand as raw material, develops to obtain a kind of impervious material with respiratory function.Use ventilation anti-seepage sand, and form the water saving solution (comprising water body, river course seepage control system and ecological planting system) of system.Can realize the several functions such as water body antiseepage, water quality maintenance, ecologic planting, saltings antiseepage, effectively in saving water resource, improve ecotope.Existing ventilation anti-seepage sand can only waterproof, can not prevent organic, soda acid liquid etc., has seriously limited its application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part and provide a kind of and can waterproof can effectively prevent ventilation anti-seepage sand organic, soda acid liquid; Meanwhile, another object of the present invention is to provide a kind of preparation method of described ventilation anti-seepage sand.
For realizing technique scheme, the technical scheme that the present invention takes is: a kind of ventilation anti-seepage sand, the component that comprises following weight part: 97～99 parts of roughing sand, 1～3 part of tetrafluoroethylene.
As the preferred implementation of ventilation anti-seepage sand of the present invention, the content of described tetrafluoroethylene is 1.2～3% of roughing sand weight.In described ventilation anti-seepage sand, the content of tetrafluoroethylene is with can be by roughing sand coated being advisable completely, preferably, the content of described tetrafluoroethylene be roughing sand weight 1.2～3% time, can be completely that roughing sand is coated.
As the preferred implementation of ventilation anti-seepage sand of the present invention, the content of described tetrafluoroethylene is 2% of roughing sand weight.Present inventor finds through large quantity research, when the content of described tetrafluoroethylene be roughing sand weight 2% time, tetrafluoroethylene not only can be coated by roughing sand completely uniformly, and can not cause the waste of tetrafluoroethylene, the selection of this content, can make gained ventilation anti-seepage sand have better waterproof, anti-organic, soda acid liquid etc.
As the preferred implementation of ventilation anti-seepage sand of the present invention, the component that described ventilation anti-seepage sand comprises following weight part: 98 parts of roughing sand, 1.96 parts of tetrafluoroethylene.Present inventor finds, when the combination of content described in the compositional selecting of described ventilation anti-seepage sand, the waterproof of gained ventilation anti-seepage sand, performance organic and soda acid liquid are best.
As the preferred implementation of ventilation anti-seepage sand of the present invention, described tetrafluoroethylene is coated on the outside surface of described roughing sand.Described tetrafluoroethylene is coated on the outside surface of described roughing sand, due to described tetrafluoroethylene almost with the not wetting property of all liquid, therefore, when it covers the outside surface of described roughing sand, can reach the effect of anti-liquid, effective waterproof, and can anti-organic liquid and nearly all liquid such as soda acid liquid.
In addition, the present invention also provides a kind of simple to operate, preparation method of being easy to the ventilation anti-seepage sand described above realized, said method comprising the steps of:
(1) tetrafluoroethylene is mixed with liquid lubricant, and then be mixed to join in sand mill and be uniformly mixed with the roughing sand after drying, dry, pulverize;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, screening.
In described preparation method, first tetrafluoroethylene is mixed with liquid lubricant, adding of liquid lubricant makes polytetrafluorethylepowder powder in the pasty state, tetrafluoroethylene in the pasty state and the anhydrous roughing sand of oven dry are mixed to join in sand mill, in sand mill, the tetrafluoroethylene of pasty state sticks on described roughing sand under the stirring action of sand mill, then the roughing sand that is stained with tetrafluoroethylene pasty state is put in heating drum, make to stick to the pasty polytetrafluoroethylextruded sintering on described roughing sand, be coated on uniformly the outside surface of described roughing sand, simultaneously, liquid lubricant in pasty polytetrafluoroethylextruded volatilizees under heat effect.
As the preparation method's of ventilation anti-seepage sand of the present invention preferred implementation, the liquid lubricant adopting in described step (1) is for being mineral oil, synthetic oil or vegetable and animals oils.As long as described liquid lubricant can make polytetrafluorethylepowder powder present pasty state, after mixing with roughing sand, can make pasty polytetrafluoroethylextruded evenly stick to the outside surface of described roughing sand, and in follow-up heat-processed, while making to stick to the pasty polytetrafluoroethylextruded sintering on described roughing sand, the liquid lubricant in described pasty polytetrafluoroethylextruded can thoroughly volatilize fast.Described liquid lubricant can select to be not limited to diesel oil, castor-oil plant wet goods, in practice, can select as required suitable liquid lubricant.
As the preparation method's of ventilation anti-seepage sand of the present invention preferred implementation, in described step (1), the mass ratio of liquid lubricant and tetrafluoroethylene is 1:6～1:4.The consumption of described liquid lubricant is advisable can make polytetrafluorethylepowder powder present preferably evenly pasty state, preferably, the mass ratio of described liquid lubricant and tetrafluoroethylene is 1:6～1:4, when the quality of liquid lubricant and polytetrafluorethylepowder powder is selected this proportional range, after the two mixes, described tetrafluoroethylene can be uniform pasty state.Certainly, the ratio of the two is not limited to this, during use, can suitably adjust according to the situation of selected liquid lubricant.
As the preparation method's of ventilation anti-seepage sand of the present invention preferred implementation, in described step (1), the mass ratio of liquid lubricant and tetrafluoroethylene is 1:5.Present inventor finds through large quantity research, when the quality of described liquid lubricant and tetrafluoroethylene is 1:5, the pasty state of gained tetrafluoroethylene is very even, gained pasty polytetrafluoroethylextruded can stick to the outside surface of described roughing sand uniformly, after heating, tetrafluoroethylene is evenly coated on the outside surface of described roughing sand preferably, and encapsulation rate is significantly increased.
Ventilation anti-seepage sand of the present invention, utilize tetrafluoroethylene almost with the not wetting property of all liquid, use coating technique, make tetrafluoroethylene be coated on the outside surface of roughing sand, not only can waterproof thereby reach, and can anti-organic liquid, soda acid liquid texts.The preparation method of ventilation anti-seepage sand of the present invention, operating procedure is simple, can prepare easily the ventilation anti-seepage sand that has poly tetrafluoroethylene in roughing sand coated with uniform.
Embodiment
For the object, technical solutions and advantages of the present invention are better described, below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of embodiment of ventilation anti-seepage sand of the present invention, the component that described in the present embodiment, ventilation anti-seepage sand comprises following weight part: 97 parts of roughing sand, 2.91 parts of tetrafluoroethylene, ventilation anti-seepage sand described in the present embodiment, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
Described in the present embodiment, ventilation anti-seepage sand adopts following methods to be prepared from:
(1) tetrafluoroethylene and mineral oil is even, the mass ratio of mineral oil and tetrafluoroethylene is 1:6, and then is mixed to join in sand mill and is uniformly mixed with the roughing sand after drying, and dries, and pulverizes;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, and screening, obtains ventilation anti-seepage sand.
Described in the present embodiment, to adopt respectively particle diameter be 100～200 orders, 70～140 orders, 50～100 object roughing sand to roughing sand, prepares the ventilation anti-seepage sand of three kinds of different-grain diameter scopes.
Embodiment 2
A kind of embodiment of ventilation anti-seepage sand of the present invention, the component that ventilation anti-seepage sand comprises following weight part described in the present embodiment: 97.5 parts of roughing sand, 1 part of tetrafluoroethylene, ventilation anti-seepage sand described in the present embodiment, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
Described in the present embodiment, ventilation anti-seepage sand adopts following methods to be prepared from:
(1) tetrafluoroethylene is mixed with lubricating oil, the mass ratio of lubricating oil and tetrafluoroethylene is 1:4, and then is mixed to join in sand mill and is uniformly mixed with the roughing sand after drying, and dries, and pulverizes;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, and screening, obtains ventilation anti-seepage sand.
Described in the present embodiment, to adopt respectively particle diameter be 100～200 orders, 70～140 orders, 50～100 object roughing sand to roughing sand, prepares the ventilation anti-seepage sand of three kinds of different-grain diameter scopes.
Embodiment 3
A kind of embodiment of ventilation anti-seepage sand of the present invention, the component that described in the present embodiment, ventilation anti-seepage sand comprises following weight part: 98 parts of roughing sand, 1.96 parts of tetrafluoroethylene, ventilation anti-seepage sand described in the present embodiment, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
Described in the present embodiment, ventilation anti-seepage sand adopts following methods to be prepared from:
(1) tetrafluoroethylene is mixed with paraffin oil, the mass ratio of paraffin oil and tetrafluoroethylene is 1:5, and then is mixed to join in sand mill and is uniformly mixed with the roughing sand after drying, and dries, and pulverizes;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, and screening, obtains ventilation anti-seepage sand.
Described in the present embodiment, to adopt respectively particle diameter be 100～200 orders, 70～140 orders, 50～100 object roughing sand to roughing sand, prepares the ventilation anti-seepage sand of three kinds of different-grain diameter scopes.
Embodiment 4
A kind of embodiment of ventilation anti-seepage sand of the present invention, the component that described in the present embodiment, ventilation anti-seepage sand comprises following weight part: 99 parts of roughing sand, 1.485 parts of tetrafluoroethylene, ventilation anti-seepage sand described in the present embodiment, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
Described in the present embodiment, ventilation anti-seepage sand adopts following methods to be prepared from:
(1) tetrafluoroethylene is mixed with diesel oil, the mass ratio of diesel oil and tetrafluoroethylene is 1:4, and then is mixed to join in sand mill and is uniformly mixed with the roughing sand after drying, and dries, and pulverizes;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, and screening, obtains ventilation anti-seepage sand.
Described in the present embodiment, to adopt respectively particle diameter be 100～200 orders, 70～140 orders, 50～100 object roughing sand to roughing sand, prepares the ventilation anti-seepage sand of three kinds of different-grain diameter scopes.
Embodiment 5
A kind of embodiment of ventilation anti-seepage sand of the present invention, the component that ventilation anti-seepage sand comprises following weight part described in the present embodiment: 98 parts of roughing sand, 2.5 parts of tetrafluoroethylene, ventilation anti-seepage sand described in the present embodiment, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
Described in the present embodiment, ventilation anti-seepage sand adopts following methods to be prepared from:
(1) tetrafluoroethylene is mixed with Viscotrol C, the mass ratio of Viscotrol C and tetrafluoroethylene is 1:5, and then is mixed to join in sand mill and is uniformly mixed with the roughing sand after drying, and dries, and pulverizes;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, and screening, obtains ventilation anti-seepage sand.
Described in the present embodiment, to adopt respectively particle diameter be 100～200 orders, 70～140 orders, 50～100 object roughing sand to roughing sand, prepares the ventilation anti-seepage sand of three kinds of different-grain diameter scopes.
Embodiment 6
A kind of embodiment of ventilation anti-seepage sand of the present invention, the component that ventilation anti-seepage sand comprises following weight part described in the present embodiment: 99 parts of roughing sand, 3 parts of tetrafluoroethylene, ventilation anti-seepage sand described in the present embodiment, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
Described in the present embodiment, ventilation anti-seepage sand adopts following methods to be prepared from:
(1) tetrafluoroethylene is mixed with oleum lini, the mass ratio of oleum lini and tetrafluoroethylene is 1:6, and then is mixed to join in sand mill and is uniformly mixed with the roughing sand after drying, and dries, and pulverizes;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, and screening, obtains ventilation anti-seepage sand.
Described in the present embodiment, to adopt respectively particle diameter be 100～200 orders, 70～140 orders, 50～100 object roughing sand to roughing sand, prepares the ventilation anti-seepage sand of three kinds of different-grain diameter scopes.
Embodiment 7
The waterproof of ventilation anti-seepage sand of the present invention, organic liquid performance test
Test arranges invention group and control group, and invention group comprises invention group 1-6, and invention group 1-6 adopts respectively the ventilation anti-seepage sand preparing in embodiment 1-6.The ventilation anti-seepage sand that control group adopts is respectively particle diameter 100～200 orders, 70～140 orders, 50～100 object roughing sand, the not coated poly tetrafluoroethylene of the outside surface of described roughing sand.
Test respectively the waterproof height of invention group and control group and anti-organic liquid (diesel oil) highly, testing method is:
(1) cloth or the filter paper that saturating liquid is good that tiles on more solid screen cloth;
(2) transparent glass or plastics tubing are established on cloth or filter paper;
(3) ventilation anti-seepage sand is imported to pipe bottom, the about 3-4 centimetre of thickness;
(4) from pipe water or the diesel oil (starting to pour liquid into along tube wall) of slowly importing suitable for reading;
(5) height of measuring while starting bottom beginning leakage is anti-liquid height.
Test result is as shown in table 1.
Table 1 waterproof height and anti-organic liquid (diesel oil) high measure result
As seen from Table 1, the ventilation anti-seepage sand of control group, directly adopts the roughing sand of different-grain diameter, has certain waterproof ability, but can not anti-organic liquid (diesel oil).And the ventilation anti-seepage sand of invention group, because the outside surface at described roughing sand is coated with poly tetrafluoroethylene, when thering is good waterproof ability, can effectively anti-organic liquid (diesel oil), especially the ventilation anti-seepage sand of embodiment 3 gained, the performance of the anti-organic liquid of its water-resisting agent (diesel oil) is significantly improved.
Last institute should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (9)
1. a ventilation anti-seepage sand, is characterized in that, the component that comprises following weight part: 97～99 parts of roughing sand, 1～3 part of tetrafluoroethylene.
2. ventilation anti-seepage sand as claimed in claim 1, is characterized in that, the content of described tetrafluoroethylene is 1.2～3% of roughing sand weight.
3. ventilation anti-seepage sand as claimed in claim 2, is characterized in that, the content of described tetrafluoroethylene is 2% of roughing sand weight.
4. ventilation anti-seepage sand as claimed in claim 1, is characterized in that, the component that described ventilation anti-seepage sand comprises following weight part: 98 parts of roughing sand, 1.96 parts of tetrafluoroethylene.
5. a ventilation anti-seepage sand as claimed in claim 1, is characterized in that, described tetrafluoroethylene is coated on the outside surface of described roughing sand.
6. as described in as arbitrary in claim 1-5, a preparation method for ventilation anti-seepage sand, is characterized in that, comprises the following steps:
(1) tetrafluoroethylene is mixed with liquid lubricant, and then be mixed to join in sand mill and be uniformly mixed with the roughing sand after drying, dry, pulverize;
(2) work in-process that step (1) obtained import in heating drum, make poly tetrafluoroethylene sintering, and temperature is 340～360 ℃, then cooling, screening.
7. the preparation method of ventilation anti-seepage sand as claimed in claim 6, is characterized in that, the liquid lubricant adopting in described step (1) is for being mineral oil, synthetic oil or vegetable and animals oils.
8. the preparation method of the ventilation anti-seepage sand as described in claim 6 or 7, is characterized in that, in described step (1), the mass ratio of liquid lubricant and tetrafluoroethylene is 1:6～1:4.
9. the preparation method of ventilation anti-seepage sand as claimed in claim 8, is characterized in that, in described step (1), the mass ratio of liquid lubricant and tetrafluoroethylene is 1:5.
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| CN106698995A (en) * | 2016-11-30 | 2017-05-24 | 张松波 | Durable concrete waterproofer |
| CN106986567A (en) * | 2017-04-01 | 2017-07-28 | 高安进 | A kind of fabrication processing of ventilation anti-seepage sand |
| CN108059390A (en) * | 2017-12-11 | 2018-05-22 | 北京奇想达新材料有限公司 | Sand base, which is breathed freely, controls water antiseepage particle and preparation method thereof |
| CN109183546A (en) * | 2018-09-25 | 2019-01-11 | 天津市水利科学研究院 | A kind of sponge urban road and its construction method using ventilation anti-seepage sand |
| CN109845612A (en) * | 2019-01-25 | 2019-06-07 | 柳州市柳晶科技股份有限公司 | A kind of ventilation anti-seepage sand and preparation method thereof |
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Application publication date: 20140205 |