CN103306259B - Method for preparing hydrophobic sand with waste polyvinyl chloride - Google Patents
Method for preparing hydrophobic sand with waste polyvinyl chloride Download PDFInfo
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- CN103306259B CN103306259B CN201310274202.0A CN201310274202A CN103306259B CN 103306259 B CN103306259 B CN 103306259B CN 201310274202 A CN201310274202 A CN 201310274202A CN 103306259 B CN103306259 B CN 103306259B
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- Prior art keywords
- polyvinyl chloride
- sand
- cyclohexanone
- dibutyl phthalate
- solution
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a method for preparing hydrophobic sand with waste polyvinyl chloride. The main craft process is that the waste polyvinyl chloride is added into a solution prepared from cyclohexanone, tetrahydrofuran and dibutyl phthalate, find sand is added into the mixture and stirred to enable the solution to be uniformly distributed on the surface of the sand, reduced pressure distillation is conducted to recycle solvents, and then cooling and packaging are conducted to obtain the hydrophobic sand. The hydrophobic sand prepared through the method has good properties, can be applied to water saving in urban landscaping, retention of water in soil in an arid area, desert prevention and the like, and is expected to play a great role in the above fields.
Description
Technical field
The present invention relates to for city trees and shrubs, sand control and a kind of preparation method of hydrophobic sand for the application of other water saving fields, refer in particular to waste polyvinyl chloride and fine sand as primary raw material is to prepare the method for hydrophobic sand.
Background technology
The present invention is mainly for current shortage of water resources, irrigation water serious waste; Desertification is day by day serious.Utilize waste polyvinyl chloride and fine sand to prepare the fine sand that a kind of surface covers by polyvinyl chloride for primary raw material, the surface due to this sand is polyvinyl chloride, therefore can not retain moisture, and not hydrophilic, and rainwater or irrigation water can be made to permeate the ground smoothly; Simultaneously because fine sand surface is not hydrophilic, can effectively reduce moisture and be absorbed water with capillarity by soil, and then evaporation causes soil dehydration.
Because the present invention utilizes waste polyvinyl chloride and fine sand to be primary raw material, the hydrophobic sand cost of preparation is lower, yet there are no the relevant report of this aspect, and the performance of its uniqueness makes it will have broad application prospects in desertification control and afforestation of city and beautification of landscape (if at the surface attachment different colours of sand during preparation).
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation method of hydrophobic sand, this preparation method utilizes waste polyvinyl chloride, oxolane, cyclohexanone, dibutyl phthalate and fine sand for primary raw material is through rational proportion, the obtained hydrophobic sand by certain activities.
The technical problem to be solved in the present invention is solved by following scheme: a kind of method preparing hydrophobic sand with waste polyvinyl chloride, it is characterized in that: waste polyvinyl chloride is joined in the mixed solution of cyclohexanone and oxolane, placement is spent the night, it is made fully to dissolve under stirring, add dibutyl phthalate to stir, obtained polyvinyl chloride solution; Fine sand is added in above-mentioned solution, uniform mixing, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling, the mass ratio of its cyclohexanone, oxolane, polyvinyl chloride, dibutyl phthalate and fine sand is 1:1:0.1-0.5:0.1:21-25.
Advantage of the present invention is: the hydrophobic sand cost 1, prepared by this method is lower.2, sand surface is covered by very thin polyvinyl chloride, thus not hydrophilic.3, be applied to afforestation of city or desertification control can save irrigation water, reduce evaporation with the process suppressing desertification, to reach the object of water saving and improvement desertification.
Accompanying drawing explanation
Fig. 1 is the process chart preparing hydrophobic sand with waste polyvinyl chloride.
Detailed description of the invention
Embodiment 1: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 1g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 250 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 2: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 1.5g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 245 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 3: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 2g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 240 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 4: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 2.5g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 235 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 5: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 3g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 230 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 6: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 3.5g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 225 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 7: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 4g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 220g fine sand, after stirring, put into cucurbit, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 8: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 4.5g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 215 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Embodiment 9: in the mixed solvent that 10g cyclohexanone and 10g oxolane are formed, add 5g polyvinyl chloride, placement is spent the night, and makes it fully dissolve under stirring, adds 1g dibutyl phthalate, stirs, obtain polyvinyl chloride solution; In above-mentioned solution, add 210 g fine sands, put into cucurbit after stirring, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling.
Claims (1)
1. prepare the method for hydrophobic sand with waste polyvinyl chloride for one kind, it is characterized in that: joined by waste polyvinyl chloride in the mixed solution of cyclohexanone and oxolane, placement is spent the night, under stirring, make it fully dissolve, add dibutyl phthalate to stir, obtained polyvinyl chloride solution; Fine sand is added in above-mentioned solution, uniform mixing, vacuum distillation recovered solvent, discharging, naturally packaging into products after cooling, the mass ratio of its cyclohexanone, oxolane, polyvinyl chloride, dibutyl phthalate and fine sand is 1:1:0.1-0.5:0.1:21-25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274202.0A CN103306259B (en) | 2013-07-02 | 2013-07-02 | Method for preparing hydrophobic sand with waste polyvinyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274202.0A CN103306259B (en) | 2013-07-02 | 2013-07-02 | Method for preparing hydrophobic sand with waste polyvinyl chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306259A CN103306259A (en) | 2013-09-18 |
| CN103306259B true CN103306259B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310274202.0A Expired - Fee Related CN103306259B (en) | 2013-07-02 | 2013-07-02 | Method for preparing hydrophobic sand with waste polyvinyl chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306259B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10062657A1 (en) * | 2000-12-15 | 2002-06-20 | Basf Ag | Polymer modified earth building materials |
| CN1247670C (en) * | 2003-11-28 | 2006-03-29 | 中国科学院化学研究所 | Super-hydrophobic porous polyvinyl chloride film and its preparing process |
| JP2005232405A (en) * | 2004-02-23 | 2005-09-02 | Unitika Ltd | Light-weight soil-improving material for soil for cultivation |
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2013
- 2013-07-02 CN CN201310274202.0A patent/CN103306259B/en not_active Expired - Fee Related
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| CN103306259A (en) | 2013-09-18 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20170702 |