CN106009564A - Degradable and environment-friendly anti-seepage film for oil field and preparation method of degradable environment-friendly anti-seepage film - Google Patents
Degradable and environment-friendly anti-seepage film for oil field and preparation method of degradable environment-friendly anti-seepage film Download PDFInfo
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- CN106009564A CN106009564A CN201610455650.4A CN201610455650A CN106009564A CN 106009564 A CN106009564 A CN 106009564A CN 201610455650 A CN201610455650 A CN 201610455650A CN 106009564 A CN106009564 A CN 106009564A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses a degradable and environment-friendly anti-seepage film for an oil field and a preparation method of the degradable and environment-friendly anti-seepage film. The degradable and environment-friendly anti-seepage film is prepared from the components by weight as follows: polylactic acid, poly (butyleneadipate-co-terephthalate), plant fibers, glycerin or epoxidized soybean oil and inorganic filler. The preparation method comprises specific preparation steps as follows: weighing the polylactic acid, poly (butyleneadipate-co-terephthalate), the plant fibers, glycerin or the epoxidized soybean oil and the inorganic filler; adding the raw materials to a high-speed mixer for uniform mixing; adding the mixture to a hopper of a twin-screw extruder, and obtaining modified resin after brace granulating; placing the modified resin in a drying machine for full drying, and putting the dried modified resin in a cast sheet machine to obtain the degradable, environment-friendly and anti-seepage film for the oil field. The film can be completely biodegraded in the nature after used, degradation products meet EN13432 standards for compostable and are non-toxic and harmless to soil, and the technical standard for environment requirements is high. The preparation method is simple in process, easy to control and suitable for industrial mass production.
Description
Technical field
The present invention relates to Material Field, be specifically related to a kind of oil field Degradable environment protection antiseepage film and preparation method thereof.
Background technology
Oil drilling construction area is distributed on desert, Gobi desert mostly, ecological environment frailty, adds the enforcement of " new two methods of environmental protection ", has higher requirement safety and environmental protection work.Compareing new standard-required, the cesspool that waste liquid of drilling and drilling cuttings are deposited process proposes requirements at the higher level, even if wild and uninhabited innerland, desert is the most without exception, construction speed, produces all drill standards such as timeliness and all " gives way " to environmental protection.Along with deepening constantly the environmental problem level of understanding, " white pollution " that solution antiseepage film causes sets up environment friendly society, sets up the good interaction of human and environment, and only way manufactures degradable antiseepage film exactly.
Synthesis high molecule plastic is used widely in every field.But, the plastic refuse after using has had resulted in environment and the public hazards of society, and some developed countries have successively formulated restriction or forbidden that some occasion uses non-degradable plastics, it is desirable to use the regulation of degradation plastic.Setting about while formulation processes and reclaim the effective measure of waste plastic for these national governments and plastics industry circle, attach great importance to research and develop degradation plastic, under the coordination of government and supporting, it it is a degradation plastic study hotspot becoming international plastics industry circle.Degradation plastic is the general designation of photodegradable plastics and biodegradable plastic.Developed country starts just to carry out the research of photodegradable plastics in the seventies, its theory comparative maturity.And biodegradable starts from the mid-80, development quickly, and has had its industrial products.Oil field welldrilling antiseepage film is using macromolecular material as main impervious material at present, and after underground buried by impervious material, occupied soil can not get recovering for a long time, affects the sustainable use in soil, and impervious material is prolonged to be stale-proof, and nearly does harm to future.Corrosion-resistant antibacterium is originally a big advantage of plastic leakage-proof film, but they become prolonged stay and become a difficult problem for scientists headache in underground, in the case of photograph unglazed without air, microorganism is difficult to decomposing organic matter, and plastic garbage can decompose totally after needing 200～300 years in landfill.Oil field welldrilling antiseepage film the most still using high molecule plastic as main impervious material, can not meet the needs of oil drilling development, and it is problem demanding prompt solution that the environment amenable product of noresidue can drop in manufacture.
Summary of the invention
It is an object of the invention to provide a kind of noresidue environmental sound or a kind of oil field Degradable environment protection antiseepage film and preparation method thereof without potential hazard of degrading, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of oil field Degradable environment protection antiseepage film, its composition by weight is: polylactic acid (PLA) 50～70 parts, polyadipate/butylene terephthalate (PBAT) 0～50 part, Plant fiber 1～10 parts, glycerol or epoxy soybean oil 1～10 parts, inorganic filler 0～30 parts.
A kind of preparation method of oil field Degradable environment protection antiseepage film, concrete preparation process is:
(1) polylactic acid, polyadipate/butylene terephthalate, Plant fiber, glycerol or epoxy soybean oil, inorganic filler are taken according to weight ratio；
(2) each raw material in step (1) is added in high speed mixer according to the order of powder body, liquid material, particulate material, mix 10～20 minutes to uniformly；
(3) being joined by the raw material mixed in step (2) in the hopper of double screw extruder, each district operation temperature arranging double screw extruder is 100～180 DEG C, obtains modified resin after tie rod pelletizing；
(4) resin modified in step (3) is put into drying machine is fully dried to water content≤500ppm；
(5) putting in cast-sheet machine by modified resin dried in step (4), cast-sheet machine each warm area operation temperature is 100～180 DEG C, finally gives a kind of oil field Degradable environment protection antiseepage film.
As the further scheme of the present invention: described inorganic filler is montmorillonite, or calcium carbonate and talcous mixture.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of oil field of present invention Degradable environment protection antiseepage film and preparation method thereof has the market advantages such as good environmental-protecting performance, raw material be renewable.Its processing temperature is that 100～180 DEG C of common antiseepage film of ratio 200 DEG C are low, calculates with this, and the power consumption of polymer processing of the degradable antiseepage film of identical yield is significantly lower than common antiseepage film.
One oil field of the present invention Degradable environment protection antiseepage film and preparation method thereof seepage capability is strong, and in 2 years, antiseepage coefficient is 1 × 10-17cm/s；Shock resistance is good, and impact energy is 0.29J/m；Hot strength and elongation at break are more than the relevant regulations of polyethylene non-degradable plastic national standard.
One oil field of the present invention Degradable environment protection antiseepage film and preparation method thereof not only meets in oil drilling recovery process; needs to rejected well drilling liquid environmental conservation; can also be at nature 100% complete biodegradable after using; degradation product meets European Union EN13432 compost standard; nontoxic to soil, environmental requirement technical standard is high；Degradation time is from the beginning of after 2 years, and in 5 years, whole degradation rates reach 100%.
Preparation method of the present invention, technique is simple, it is easy to control, and is suitable for industrialized great production.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
A kind of preparation method of oil field Degradable environment protection antiseepage film, concrete preparation process is:
Embodiment 1
(1) polylactic acid 50 parts, polyadipate/butylene terephthalate 0 part, Plant fiber 1 part, glycerol 1 part, montmorillonite 0 part are taken；
(2) each raw material in step (1) is added in high speed mixer according to the order of powder body, liquid material, particulate material, mix 10 minutes to uniformly；
(3) being joined by the raw material mixed in step (2) in the hopper of double screw extruder, each district operation temperature arranging double screw extruder is 100 DEG C, obtains modified resin after tie rod pelletizing；
(4) resin modified in step (3) is put into drying machine is fully dried to water content≤500ppm；
(5) putting in cast-sheet machine by modified resin dried in step (4), cast-sheet machine each warm area operation temperature is 100 DEG C, finally gives a kind of oil field Degradable environment protection antiseepage film.
Embodiment 2
(1) polylactic acid 60 parts, polyadipate/butylene terephthalate 30 parts, Plant fiber 5 parts, glycerol 5 parts, calcium carbonate and Pulvis Talci 10 parts are taken；
(2) each raw material in step (1) is added in high speed mixer according to the order of powder body, liquid material, particulate material, mix 15 minutes to uniformly；
(3) being joined by the raw material mixed in step (2) in the hopper of double screw extruder, each district operation temperature arranging double screw extruder is 150 DEG C, obtains modified resin after tie rod pelletizing；
(4) resin modified in step (3) is put into drying machine is fully dried to water content≤500ppm；
(5) putting in cast-sheet machine by modified resin dried in step (4), cast-sheet machine each warm area operation temperature is 150 DEG C, finally gives a kind of oil field Degradable environment protection antiseepage film.
Embodiment 3
(1) polylactic acid 70 parts, polyadipate/butylene terephthalate 50 parts, Plant fiber 10 parts, epoxy soybean oil 10 parts, montmorillonite 30 parts are taken；
(2) each raw material in step (1) is added in high speed mixer according to the order of powder body, liquid material, particulate material, mix 20 minutes to uniformly；
(3) being joined by the raw material mixed in step (2) in the hopper of double screw extruder, each district operation temperature arranging double screw extruder is 180 DEG C, obtains modified resin after tie rod pelletizing；
(4) resin modified in step (3) is put into drying machine is fully dried to water content≤500ppm；
(5) putting in cast-sheet machine by modified resin dried in step (4), cast-sheet machine each warm area operation temperature is 180 DEG C, finally gives a kind of oil field Degradable environment protection antiseepage film.
Embodiment 4
(1) polylactic acid 75 parts, polyadipate/butylene terephthalate 45 parts, Plant fiber 7 parts, epoxy soybean oil 7 parts, calcium carbonate and talc mixture 25 parts are taken；
(2) each raw material in step (1) is added in high speed mixer according to the order of powder body, liquid material, particulate material, mix 18 minutes to uniformly；
(3) being joined by the raw material mixed in step (2) in the hopper of double screw extruder, each district operation temperature arranging double screw extruder is 160 DEG C, obtains modified resin after tie rod pelletizing；
(4) resin modified in step (3) is put into drying machine is fully dried to water content≤500ppm；
(5) putting in cast-sheet machine by modified resin dried in step (4), cast-sheet machine each warm area operation temperature is 160 DEG C, finally gives a kind of oil field Degradable environment protection antiseepage film.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the present invention.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (3)
1. an oil field Degradable environment protection antiseepage film, it is characterized in that, its composition by weight is: polylactic acid 50～70 parts, polyadipate/butylene terephthalate 0～50 parts, Plant fiber 1～10 parts, glycerol or epoxy soybean oil 1～1 0 parts, inorganic filler 0～30 parts.
2. oil field as claimed in claim 1 a kind of Degradable environment protection antiseepage film, it is characterised in that described inorganic filler is montmorillonite, or calcium carbonate and talcous mixture.
3. the preparation method of a kind of oil field Degradable environment protection antiseepage film as described in as arbitrary in claim 1～2, it is characterised in that concrete preparation process is:
(1) polylactic acid, polyadipate/butylene terephthalate, Plant fiber, glycerol or epoxy soybean oil, inorganic filler are taken according to weight ratio；
(2) each raw material in step (1) is added in high speed mixer according to the order of powder body, liquid material, particulate material, mix 10～20 minutes to uniformly；
(3) being joined by the raw material mixed in step (2) in the hopper of double screw extruder, each district operation temperature arranging double screw extruder is 100～180 DEG C, obtains modified resin after tie rod pelletizing；
(4) resin modified in step (3) is put into drying machine is fully dried to water content≤500ppm；
(5) dried modified resin is put in cast-sheet machine, and cast-sheet machine each warm area operation temperature is 100～180 DEG C, finally gives a kind of oil field Degradable environment protection antiseepage film.
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| CN201610455650.4A CN106009564A (en) | 2016-06-22 | 2016-06-22 | Degradable and environment-friendly anti-seepage film for oil field and preparation method of degradable environment-friendly anti-seepage film |
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| CN201610455650.4A CN106009564A (en) | 2016-06-22 | 2016-06-22 | Degradable and environment-friendly anti-seepage film for oil field and preparation method of degradable environment-friendly anti-seepage film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790300A (en) * | 2017-05-05 | 2018-11-13 | 中国石油天然气股份有限公司 | Fully-degradable oil field seepage-proofing cloth and preparation method and application thereof |
| CN109535670A (en) * | 2018-11-16 | 2019-03-29 | 广东众塑降解材料有限公司 | A kind of Wholly-degradable emulation material and preparation method thereof |
| CN109651786B (en) * | 2019-01-02 | 2021-04-30 | 南京工业大学 | Full-biodegradable oil anti-seepage film and preparation method thereof |
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| CN103589124A (en) * | 2012-08-14 | 2014-02-19 | 上海杰事杰新材料(集团)股份有限公司 | Fully-biodegradable PLA/PBAT composite film and making method thereof |
| CN105623214A (en) * | 2016-01-13 | 2016-06-01 | 广州市海珥玛植物油脂有限公司 | Plasticized biodegradable polyester film and preparation method thereof |
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2016
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790300A (en) * | 2017-05-05 | 2018-11-13 | 中国石油天然气股份有限公司 | Fully-degradable oil field seepage-proofing cloth and preparation method and application thereof |
| CN108790300B (en) * | 2017-05-05 | 2021-05-28 | 中国石油天然气股份有限公司 | Fully-degradable oil field seepage-proofing cloth and preparation method and application thereof |
| CN109535670A (en) * | 2018-11-16 | 2019-03-29 | 广东众塑降解材料有限公司 | A kind of Wholly-degradable emulation material and preparation method thereof |
| CN109535670B (en) * | 2018-11-16 | 2021-10-08 | 广东众塑降解材料有限公司 | Full-degradable simulation material and preparation method thereof |
| CN109651786B (en) * | 2019-01-02 | 2021-04-30 | 南京工业大学 | Full-biodegradable oil anti-seepage film and preparation method thereof |
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Application publication date: 20161012 |