CN109438850A - A kind of Enhancement Method of waste and old polypropylene - Google Patents
A kind of Enhancement Method of waste and old polypropylene Download PDFInfo
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- CN109438850A CN109438850A CN201811361308.3A CN201811361308A CN109438850A CN 109438850 A CN109438850 A CN 109438850A CN 201811361308 A CN201811361308 A CN 201811361308A CN 109438850 A CN109438850 A CN 109438850A
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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
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
- C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
- C08J2455/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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Abstract
The present invention relates to a kind of Enhancement Methods of waste and old polypropylene, the following steps are included: (1), by waste and old polypropylene resin using mass fraction be 8% sodium bicarbonate solution embathe, reuse the hydrochloric acid solution cleaning of mass fraction 5%, then it is rinsed using clear water, drying, it is broken into particle, obtains waste and old polypropylene resin particle；(2), modified additive is prepared；(3), 100 parts of waste and old polypropylene resin particle, 10-15 parts of plasticizer, 12-15 parts of the additive of step (2) preparation, 2-3 parts of antioxidant mixing are taken by weight, are granulated, are obtained waste and old polypropylene reclaimed materials.For the mechanical property of the treated waste and old polypropylene of the application relative to waste plastic directly using with being obviously improved, performance has basically reached effect of the virgin material after compounding, has good market prospects.
Description
Technical field
The invention belongs to environment protection fields, and in particular to a kind of Enhancement Method of waste and old polypropylene.
Background technique
Polypropylene is the highly crystalline polymer of nontoxic, odorless, tasteless milky, good moldability, to some dimensional accuracies
Higher part is difficult to reach requirement, product surface good luster.Nontoxic, tasteless, density is small, intensity, rigidity, hardness heat resistance
It is superior to low pressure polyethylene, can be used at 100 DEG C or so.With good dielectric properties and high-frequency insulation and not by humidity shadow
It rings, but becomes fragile when low temperature, it is not wear-resisting, easy to aging.Suitable for production common mechanical part, corrosion-resistant part and insulating part.It is common
The organic solvents such as acid, alkali almost do not work to it, can be used for tableware.Since polypropylene use scope is wide, every annual meeting is generated
A large amount of waste polypropylene plastic, not only causes environmental pollution, will also result in the waste of resource.
Summary of the invention
The object of the present invention is to provide a kind of Enhancement Methods of waste and old polypropylene, by handling waste and old polypropylene,
Promote polyacrylic performance.
The invention is realized by the following technical scheme:
A kind of Enhancement Method of waste and old polypropylene, comprising the following steps:
(1), waste and old polypropylene resin is embathed using the sodium bicarbonate solution that mass fraction is 8%, reuses mass fraction
5% hydrochloric acid solution cleaning, is then rinsed using clear water, dries, be broken into particle, obtain waste and old polypropylene resin particle；
(2), modified additive is prepared
A, mica powder is taken, the sundries in mica powder is removed, the mica powder after removal of impurities is used into deionized water cleaning 3 times, then mistake
Filter, then using baking oven in 100 DEG C of baking 30min；
B, carbon nanotube is taken, by the nitric acid solution immersion treatment 2h of carbon nanotube and mass fraction 8%, using super in soaking process
Sound wave shock processing, then cleans carbon nanotube using deionized water, reuses the ethanol solution leaching of volume fraction 70%
It washes 3 times, 8 times of carbon nanotubes of deionized water is added into carbon nanotube, ultrasonic oscillation handles 10min, obtains carbon and receive
Mitron dispersion liquid adds the silane coupling agent of its quality 0.1% into carbon nano tube dispersion liquid, continues ultrasonication 1-2h, quiet
Processing 1 hour is set, is then filtered, is cleaned, drying to constant weight to get modified carbon nano-tube；
C, the mica powder that step a is handled well is mixed evenly with modified carbon nano-tube obtained in step b；
D, mixture, glass fibre and the ABS high glue powder obtained step c is mixed by weight the ratio of 8:1:2, uses ball milling
Machine grinds 10-15min, obtains modified additive；
(3), the additive for taking 100 parts of waste and old polypropylene resin particle, 10-15 parts of plasticizer, step (2) to prepare by weight
12-15 parts, 2-3 parts of antioxidant mixing, are granulated, obtain waste and old polypropylene reclaimed materials.
The mica powder passes through modification, the method for modifying of mica powder the following steps are included:
(1), the impurity in mica powder is removed, mica powder is crushed, is sieved with 100 mesh sieve；
(2), step (1) treated mica powder is handled into 30min using the nitric acid dousing of mass fraction 5%, then using go from
Sub- water cleans 5 times, then filters；
(3), the mica powder that step (2) is handled well is handled into 15min at 220 DEG C, then heats to 360 DEG C of heat preservation 10min, risen
Temperature is cooled to room temperature with the speed of 5 DEG C/min, then, mica powder weight 10 is added into mica powder to 650 DEG C of heat preservation 10min
Silane coupling agent KH550, the mica powder of mica powder weight 1% are added into mixed liquor for the ethanol solution of mass fraction 20% again
The polyvinylpyrrolidone of weight 2% stirs 20min, then ultrasonication 10min, filters, dries, be modified at 90 DEG C
Mica powder.
The plasticizer is dioctyl phthalate.
The antioxidant is antioxidant 1010 or antioxidant BHT.
In the present invention in waste and old polypropylene processing, the additive in the application joined, additive is based on mica powder
Ingredient is wanted, tried to compound with carbon nanotube, improves the activity on mica powder surface, the dispersion effect being lifted in polypropylene, and
And compounded by carbon nanotube with mica powder, the bond strength of mica powder and polypropylene waste material is improved, is promoted poly- third after compounding
Glass fibre is added during processing and is able to ascend polyacrylic intensity after recycling for the performance of alkene, and ABS high glue powder is added can
Keep additive and waste and old polypropylene mixing uniformity higher, and be able to ascend polyacrylic intensity after recycling, in the application
Mica powder by mixing with carbon nanotube, glass fibre, ABS high glue powder, enable to polypropylene after the recovery to have good
Good processability makes polypropylene after the recovery have better comprehensive performance.
Beneficial effects of the present invention: the recovery method of waste and old polypropylene provided by the invention is simple, and processing cost is low, passes through
Make waste and old polypropylene that there is good processability and good comprehensive performance after processing, enables the polypropylene of recycling straight
It connects processing to use, improves the convenience of waste and old polypropylene recycling.
Specific embodiment
Embodiment 1
A kind of Enhancement Method of waste and old polypropylene, comprising the following steps:
(1), waste and old polypropylene resin is embathed using the sodium bicarbonate solution that mass fraction is 8%, reuses mass fraction
5% hydrochloric acid solution cleaning, is then rinsed using clear water, dries, be broken into particle, obtain waste and old polypropylene resin particle；
(2), modified additive is prepared
A, mica powder is taken, the sundries in mica powder is removed, the mica powder after removal of impurities is used into deionized water cleaning 3 times, then mistake
Filter, then using baking oven in 100 DEG C of baking 30min；
B, carbon nanotube is taken, by the nitric acid solution immersion treatment 2h of carbon nanotube and mass fraction 8%, using super in soaking process
Sound wave shock processing, then cleans carbon nanotube using deionized water, reuses the ethanol solution leaching of volume fraction 70%
It washes 3 times, 8 times of carbon nanotubes of deionized water is added into carbon nanotube, ultrasonic oscillation handles 10min, obtains carbon and receive
Mitron dispersion liquid adds the silane coupling agent of its quality 0.1% into carbon nano tube dispersion liquid, continues ultrasonication 1-2h, quiet
Processing 1 hour is set, is then filtered, is cleaned, drying to constant weight to get modified carbon nano-tube；
C, the mica powder that step a is handled well is mixed evenly with modified carbon nano-tube obtained in step b；
D, mixture, glass fibre and the ABS high glue powder obtained step c is mixed by weight the ratio of 8:1:2, uses ball milling
Machine grinds 10-15min, obtains modified additive；
(3), take by weight 100 parts of waste and old polypropylene resin particle, 13 parts of plasticizer, step (2) preparation 13 parts of additive,
2.5 parts of antioxidant mixing, are granulated, obtain waste and old polypropylene reclaimed materials.
The mica powder passes through modification, the method for modifying of mica powder the following steps are included:
(1), the impurity in mica powder is removed, mica powder is crushed, is sieved with 100 mesh sieve；
(2), step (1) treated mica powder is handled into 30min using the nitric acid dousing of mass fraction 5%, then using go from
Sub- water cleans 5 times, then filters；
(3), the mica powder that step (2) is handled well is handled into 15min at 220 DEG C, then heats to 360 DEG C of heat preservation 10min, risen
Temperature is cooled to room temperature with the speed of 5 DEG C/min, then, mica powder weight 10 is added into mica powder to 650 DEG C of heat preservation 10min
Silane coupling agent KH550, the mica powder of mica powder weight 1% are added into mixed liquor for the ethanol solution of mass fraction 20% again
The polyvinylpyrrolidone of weight 2% stirs 20min, then ultrasonication 10min, filters, dries, be modified at 90 DEG C
Mica powder.
The plasticizer is dioctyl phthalate.
The antioxidant is antioxidant 1010.
Embodiment 2
A kind of Enhancement Method of waste and old polypropylene, comprising the following steps:
(1), waste and old polypropylene resin is embathed using the sodium bicarbonate solution that mass fraction is 8%, reuses mass fraction
5% hydrochloric acid solution cleaning, is then rinsed using clear water, dries, be broken into particle, obtain waste and old polypropylene resin particle；
(2), modified additive is prepared
A, mica powder is taken, the sundries in mica powder is removed, the mica powder after removal of impurities is used into deionized water cleaning 3 times, then mistake
Filter, then using baking oven in 100 DEG C of baking 30min；
B, carbon nanotube is taken, by the nitric acid solution immersion treatment 2h of carbon nanotube and mass fraction 8%, using super in soaking process
Sound wave shock processing, then cleans carbon nanotube using deionized water, reuses the ethanol solution leaching of volume fraction 70%
It washes 3 times, 8 times of carbon nanotubes of deionized water is added into carbon nanotube, ultrasonic oscillation handles 10min, obtains carbon and receive
Mitron dispersion liquid adds the silane coupling agent of its quality 0.1% into carbon nano tube dispersion liquid, continues ultrasonication 1-2h, quiet
Processing 1 hour is set, is then filtered, is cleaned, drying to constant weight to get modified carbon nano-tube；
C, the mica powder that step a is handled well is mixed evenly with modified carbon nano-tube obtained in step b；
D, mixture, glass fibre and the ABS high glue powder obtained step c is mixed by weight the ratio of 8:1:2, uses ball milling
Machine grinds 10-15min, obtains modified additive；
(3), take by weight 100 parts of waste and old polypropylene resin particle, 15 parts of plasticizer, step (2) preparation 12 parts of additive,
3 parts of antioxidant mixing, are granulated, obtain waste and old polypropylene reclaimed materials.
The mica powder passes through modification, the method for modifying of mica powder the following steps are included:
(1), the impurity in mica powder is removed, mica powder is crushed, is sieved with 100 mesh sieve；
(2), step (1) treated mica powder is handled into 30min using the nitric acid dousing of mass fraction 5%, then using go from
Sub- water cleans 5 times, then filters；
(3), the mica powder that step (2) is handled well is handled into 15min at 220 DEG C, then heats to 360 DEG C of heat preservation 10min, risen
Temperature is cooled to room temperature with the speed of 5 DEG C/min, then, mica powder weight 10 is added into mica powder to 650 DEG C of heat preservation 10min
Silane coupling agent KH550, the mica powder of mica powder weight 1% are added into mixed liquor for the ethanol solution of mass fraction 20% again
The polyvinylpyrrolidone of weight 2% stirs 20min, then ultrasonication 10min, filters, dries, be modified at 90 DEG C
Mica powder.
The plasticizer is dioctyl phthalate.
The antioxidant is antioxidant BHT.
Embodiment 3
Compared with Example 1, mica powder is without modification.
In order to verify influence of the processing mode to the waste and old polypropylene resin of recycling in the application, it is provided with following comparison
Example.
Comparative example 1
Compared with Example 1, when prepared by additive, it is added without carbon nanotube.
Comparative example 2
Compared with Example 1, when prepared by additive, carbon nanotube is without modification.
Embodiment 3
Compared with Example 1, when prepared by additive, it is added without glass fibre.
Comparative example 4
Compared with Example 1, when prepared by additive, it is added without ABS high glue powder.
Comparative example 5
The plasticizer and antioxidant of component same as Example 1 are added after waste and old polypropylene is directly cleaned.
Control group
New 110 parts of polypropylene are mixed with 12 parts of plasticizer, 22 parts of additive, 1.8 parts of antioxidant, additive is embodiment 1
The additive of middle method preparation.
In order to verify the performance of each group reclaimed materials, the applicant recycles polypropylene obtained in each embodiment and comparative example
Material is tested for the property, as a result such as table 1；
Table 1:
| Tensile strength (MPa) | Elongation at break (%) | Notched Izod impact hit intensity kJ/m2 | |
| Embodiment 1 | 45.3 | 11.8 | 17.5 |
| Embodiment 2 | 43.7 | 11.5 | 16.8 |
| Embodiment 3 | 41.1 | 10.8 | 12.3 |
| Comparative example 1 | 33.2 | 6.5 | 9.6 |
| Comparative example 2 | 36.5 | 8.3 | 11.4 |
| Comparative example 3 | 32.5 | 7.6 | 10.1 |
| Comparative example 4 | 30.5 | 7.2 | 8.6 |
| Comparative example 5 | 27.4 | 5.6 | 6.5 |
| Control group | 49.3 | 12.2 | 18.5 |
Tensile strength is tested referring to GB/T 1040-2006；The Izod notched impact strength is referring to GB/T 1843-
2008 are tested；
As shown in Table 1, the mechanical property of the treated waste and old polypropylene of the application is relative to waste plastic directly using having
It is obviously improved, performance has basically reached effect of the virgin material after compounding, has good market prospects.
Claims (4)
1. a kind of Enhancement Method of waste and old polypropylene, which comprises the following steps:
(1), waste and old polypropylene resin is embathed using the sodium bicarbonate solution that mass fraction is 8%, reuses mass fraction
5% hydrochloric acid solution cleaning, is then rinsed using clear water, dries, be broken into particle, obtain waste and old polypropylene resin particle；
(2), modified additive is prepared
A, mica powder is taken, the sundries in mica powder is removed, the mica powder after removal of impurities is used into deionized water cleaning 3 times, then mistake
Filter, then using baking oven in 100 DEG C of baking 30min；
B, carbon nanotube is taken, by the nitric acid solution immersion treatment 2h of carbon nanotube and mass fraction 8%, using super in soaking process
Sound wave shock processing, then cleans carbon nanotube using deionized water, reuses the ethanol solution leaching of volume fraction 70%
It washes 3 times, 8 times of carbon nanotubes of deionized water is added into carbon nanotube, ultrasonic oscillation handles 10min, obtains carbon and receive
Mitron dispersion liquid adds the silane coupling agent of its quality 0.1% into carbon nano tube dispersion liquid, continues ultrasonication 1-2h, quiet
Processing 1 hour is set, is then filtered, is cleaned, drying to constant weight to get modified carbon nano-tube；
C, the mica powder that step a is handled well is mixed evenly with modified carbon nano-tube obtained in step b；
D, mixture, glass fibre and the ABS high glue powder obtained step c is mixed by weight the ratio of 8:1:2, uses ball milling
Machine grinds 10-15min, obtains modified additive；
(3), the additive for taking 100 parts of waste and old polypropylene resin particle, 10-15 parts of plasticizer, step (2) to prepare by weight
12-15 parts, 2-3 parts of antioxidant mixing, are granulated, obtain waste and old polypropylene reclaimed materials.
2. a kind of Enhancement Method of waste and old polypropylene according to claim 1, which is characterized in that the mica powder is by changing
Property processing, the method for modifying of mica powder the following steps are included:
(1), the impurity in mica powder is removed, mica powder is crushed, is sieved with 100 mesh sieve；
(2), step (1) treated mica powder is handled into 30min using the nitric acid dousing of mass fraction 5%, then using go from
Sub- water cleans 5 times, then filters；
(3), the mica powder that step (2) is handled well is handled into 15min at 220 DEG C, then heats to 360 DEG C of heat preservation 10min, risen
Temperature is cooled to room temperature with the speed of 5 DEG C/min, then, mica powder weight 10 is added into mica powder to 650 DEG C of heat preservation 10min
Silane coupling agent KH550, the mica powder of mica powder weight 1% are added into mixed liquor for the ethanol solution of mass fraction 20% again
The polyvinylpyrrolidone of weight 2% stirs 20min, then ultrasonication 10min, filters, dries, be modified at 90 DEG C
Mica powder.
3. a kind of Enhancement Method of waste and old polypropylene according to claim 1, which is characterized in that the plasticizer is adjacent benzene
Diformazan dioctyl phthalate.
4. a kind of Enhancement Method of waste and old polypropylene according to claim 1, which is characterized in that the antioxidant is antioxygen
Agent 1010 or antioxidant BHT.
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| CN201811361308.3A CN109438850A (en) | 2018-11-15 | 2018-11-15 | A kind of Enhancement Method of waste and old polypropylene |
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| CN201811361308.3A CN109438850A (en) | 2018-11-15 | 2018-11-15 | A kind of Enhancement Method of waste and old polypropylene |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914240A (en) * | 2010-08-11 | 2010-12-15 | 丁飞鹏 | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof |
| CN104341668A (en) * | 2013-08-06 | 2015-02-11 | 徐州农丰塑料有限公司 | Recycled plastic |
| CN105111585A (en) * | 2015-09-10 | 2015-12-02 | 常州塑金高分子科技有限公司 | Polypropylene washing machine powder filling granules for recovery and preparation method thereof |
| CN105348643A (en) * | 2015-11-25 | 2016-02-24 | 贾崇启 | Recyclable novel composite material |
-
2018
- 2018-11-15 CN CN201811361308.3A patent/CN109438850A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914240A (en) * | 2010-08-11 | 2010-12-15 | 丁飞鹏 | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof |
| CN104341668A (en) * | 2013-08-06 | 2015-02-11 | 徐州农丰塑料有限公司 | Recycled plastic |
| CN105111585A (en) * | 2015-09-10 | 2015-12-02 | 常州塑金高分子科技有限公司 | Polypropylene washing machine powder filling granules for recovery and preparation method thereof |
| CN105348643A (en) * | 2015-11-25 | 2016-02-24 | 贾崇启 | Recyclable novel composite material |
Non-Patent Citations (2)
| Title |
|---|
| 徐同考编: "《塑料改性实用技术》", 31 October 2012, 中国轻工业出版社 * |
| 杨桂生编著: "《工程塑料》", 31 December 2017, 中国铁道出版社 * |
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