CN108559171A - A kind of preparation method of anti-aging geotextiles - Google Patents
A kind of preparation method of anti-aging geotextiles Download PDFInfo
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- CN108559171A CN108559171A CN201711317091.1A CN201711317091A CN108559171A CN 108559171 A CN108559171 A CN 108559171A CN 201711317091 A CN201711317091 A CN 201711317091A CN 108559171 A CN108559171 A CN 108559171A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of preparation methods of anti-aging geotextiles, belong to textile preparing technical field.The present invention passes through priming reaction by montmorillonite,Acidification reaction and natridization reaction,Since the radius-thickness ratio and specific surface area of montmorillonite layer are larger,The movement of polymer segment and the translation of strand and rotation is set all greatly to be blocked,And modified montmorillonoid is dispersed in polypropylene matrix,Form lamellar structure,It can effectively prevent oxygen and ultraviolet light etc. to polyacrylic destruction,Delay polyacrylic aging,Due to the effect of mechanical stress and heat,Macromolecule is directly acted on molecular oxygen or the interaction with catalyst residue,Therefore antioxidant 1010 is added into polypropylene,Carbon black and benzotriazole and zinc oxide these antioxidant,By itself and biogas slurry and peach gum co-fermentation,There is protective effect to polyacrylic photooxidation,Further increase the anti-aging of geotextiles,It is both economically and environmentally beneficial,With extensive prospect of the application.
Description
Technical field
The invention discloses a kind of preparation methods of anti-aging geotextiles, belong to textile preparing technical field.
Background technology
Geotextiles, also known as geotextile, it is that water penetration geotechnique made of being pierced or woven by needle by synthetic fibers synthesizes
Material.Geotextiles are that new material geosynthetics is one such, and finished product is cloth-like, and general width is 4~6 meters, and length is
50~100 meters.Geotextiles are divided into Woven geofabric and without spinning filament geotextiles.
Most geotextiles are used as：Make the reinforcement in retaining wall backfill, or the panel for anchored retaining wall.Build packet
Wrap up in formula retaining wall or abutment.Flexible pavement is reinforced, the crack on road is repaired, prevents reflection cracking in a pavement.Increase rubble side slope
And the stability of reinforced earth, the freeze injury to prevent erosion with soil body when low temperature.Separation layer between way quarrel and roadbed or road
Separation layer between base and soft base.The separation layer of artificial earth fill, enrockment or yard of material and ground, between different frozen soil layers every
From.Anti-filter and reinforcement effect.The filtering layer of the initial stage upstream dam facing of the grey dam of storage or tailing dam, drainage system in retaining wall backfill
Filtering layer.The filtering layer on closed drain periphery or rubble seugh periphery.The filter of well, relief well or the pipe that baroclines in hydraulic engineering
Layer.Highway, airport, railway road caye and the geotextile between ground such as artificial enrockment separation layer.Earth dam internal vertical or
Horizontal drainage is embedded in the soil body interstitial hydraulic pressure that dissipates.Behind anti-seepage geomembrane in earth dam or earth embankment or under concrete facing
The draining in portion.The infiltration of tunnel periphery is excluded, mitigates and seeps water around the external water pressure and each building that lining cutting is born.Artificial earth fill
The draining of ground sports ground ground.Highway（Including temporary road）It is used in the engineerings such as railway, embankment, earth and rockfill dam, airport, sports ground
To reinforce soft foundation.The resistance to fracture of multi-purpose geotextiles and wearability are all relatively good greatly on the market at present, but geotextiles are long
Photooxidative degradation can occur in the sun for phase exposure, and the performances such as the physics, machinery and color of Geotextile Products is caused all to be damaged
It loses and destroys, it is also necessary to which technology improves it.
Because a kind of anti-aging geotextiles of the invention have positive effect to textile preparing technical field.
Invention content
The technical problems to be solved by the invention：Light can be occurred by being chronically exposed under sunlight for geotextiles common at present
Oxidative degradation, the defect for causing the performances such as the physics, machinery and color of Geotextile Products all to lose and destroy, provides one
The preparation method of the anti-aging geotextiles of kind.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of anti-aging geotextiles, it is characterised in that specifically preparation process is：
（1）It weighs 80~100g montmorillonites and is put into kiln and calcine, take out calcined product, calcined product is added to 30~
After being stirred to react in the beaker of 50mL salpeter solutions and 12~20mL sodium carbonate liquors, pours into nutsch filter and filter, after suction filtration
To filter residue, it is put into baking oven and dries after being rinsed with deionized water, obtain modified montmorillonoid；
（2）Antioxidant 1010, carbon black and benzotriazole are mixed, mixture is obtained, pours the mixture into mixture
It in the peach gum of quality 8% and the fermentation tank of the biogas slurry of mixture quality 0.5%, is sealed by fermentation, takes out tunning, be modified
Mixture；
（3）It counts in parts by weight, modified montmorillonoid is added to four equipped with blender, condenser pipe, charging hopper and thermometer
In mouth flask, modified mixture, absolute ethyl alcohol, zinc oxide and deionized water are added respectively and is mixed, and heat temperature raising, stirring
After pour into nutsch filter and filter, isolated filter residue, then filter residue is washed with deionized is put into baking oven and dry obtains intercalation and changes
Property montmorillonite；
（4）Polypropylene fibre heat temperature raising is weighed, above-mentioned intercalation modifying montmorillonite mixing is added after its softening, and to be placed in double roller mixed
It is kneaded in mill, is injected in mold after stirring, place into geotextiles production equipment and prepare, naturally dry, discharging, you can be made
Anti-aging geotextiles.
Step（1）The calcination temperature be 800~1000 DEG C, calcination time be 1~3h, a concentration of the 3 of salpeter solution
Mol/L, a concentration of 2mol/L of sodium carbonate liquor, reaction temperature are 70~90 DEG C, and the reaction time is 2~4h, washing time 3
~5 times, drying temperature is 60~80 DEG C, and drying time is 1~2h.
Step（2）The mass ratio of the antioxidant 1010, carbon black and benzotriazole is 1：1：1, mixing time be 6~
8min, fermentation temperature are 30~40 DEG C, and fermentation time is 7~9 days.
Step（3）The meter in parts by weight weighs 20~30 parts of modified montmorillonoids, 8~10 parts of modified mixing respectively
Object, 4~6 parts of absolute ethyl alcohols, 2~4 parts of zinc oxide and 8~10 parts of deionized waters, mixing time are 4~6h, heat temperature raising temperature
It it is 70~90 DEG C, drying temperature is 60~80 DEG C, and drying time is 1~3h.
Step（4）The meter in parts by weight, weighs 35~45 parts of polypropylene, and heat temperature raising temperature is 165~175
DEG C, mixing time is 1~2h, and the size of mold is the mm × 10 of 80mm × 30 mm.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention passes through priming reaction, acidification reaction and natridization reaction by montmorillonite so that modified montmorillonite is uniform
It is dispersed in polypropylene matrix, forms lamellar structure, the radius-thickness ratio and specific surface area of wherein montmorillonite lamella itself are larger, can be with
The mechanical performance and laminated inorganic matter interlayer for improving geotextiles can hold onto polymer molecule, make polymer segment
Movement and the translation of strand and rotation are all greatly blocked, to make geotextiles possess excellent thermal stability and resistance to
It is hot, it can effectively prevent oxygen and ultraviolet light etc. to polyacrylic destruction, delay polyacrylic aging, to improve geotextiles
Anti-aging property；
（2）The present invention uses polypropylene in process, due to the effect of mechanical stress and heat, carbon-hydrogen or carbon-carbon bond homolysis
Macromolecular alkyl diradical can be resulted in, macromolecule is directly acted on molecular oxygen or the interaction with catalyst residue,
Free radical can also be resulted in, the free radical of generation will react to form hydroperoxides with oxygen, so as to cause polyacrylic
Thermal oxidative degradation, therefore antioxidant 1010, carbon black and benzotriazole and zinc oxide these antioxidant are added into polypropylene, it will
Peach gum is resolved into the sticking macromolecular carbohydrate of tool using microorganism in biogas slurry, promoted by itself and biogas slurry and peach gum co-fermentation
These antioxidant are improved with the caking property of polypropylene and modified montmorillonoid, have protective effect to polyacrylic photo-oxidation process, into
One step improves the anti-aging property of geotextiles, both economically and environmentally beneficial, has extensive prospect of the application.
Specific implementation mode
It weighs 80~100g montmorillonites and is put into 1~3h of calcining in the kiln that temperature is 800~1000 DEG C, take out calcining production
Calcined product is added to a concentration of 3 mol/L salpeter solutions of 30~50mL and a concentration of 2mol/L carbon of 12~20mL by object
In the beaker of acid sodium solution, after being stirred to react 2~4h at being 70~90 DEG C in temperature, pours into nutsch filter and filter, after suction filtration
It is put into baking oven after being rinsed 3~5 times with deionized water to filter residue, 1~2h is dried at 60~80 DEG C, obtained modified cover and take off
Soil is in mass ratio 1：1：6~8min is mixed in antioxidant 1010, carbon black and benzotriazole by 1, is obtained mixture, will be mixed
In the fermentation tank for closing the object biogas slurry of pouring into the peach gum with mixture quality 8% and mixture quality 0.5%, temperature be 30~
It is sealed by fermentation 7~9 days at 40 DEG C, takes out tunning, obtain modified mixture, count in parts by weight, by 20~30 parts of modifications
Montmorillonite is added in the four-hole boiling flask equipped with blender, condenser pipe, charging hopper and thermometer, and adding 8~10 parts respectively changes
Property mixture, 4~6 parts of absolute ethyl alcohols, 2~4 parts of zinc oxide and 8~10 parts of deionized waters 4~6h, and heat temperature raising is mixed
It pours into nutsch filter and filters to 70~90 DEG C, after stirring, isolated filter residue, then filter residue is washed with deionized, it is put into 60~
1~3h is dried in 80 DEG C of baking oven, is obtained intercalation modifying montmorillonite, is weighed 35~45 parts of polypropylene fibres and be heated to 165
~175 DEG C, above-mentioned intercalation modifying montmorillonite mixing is added after its softening and is placed in 1~2h of mixing in double roll mill, after mixing
Injection size is to place into geotextiles production equipment and prepare, naturally dry goes out in the mold of the mm × 10 of 80mm × 30 mm
Material, you can anti-aging geotextiles are made.
Example 1
It weighs 80g montmorillonites and is put into temperature to calcine 1h in 800 DEG C of kiln, take out calcined product, calcined product is added to
It is 70 in temperature in beaker with a concentration of 3 mol/L salpeter solutions of 30mL and a concentration of 2mol/L sodium carbonate liquors of 12mL
It after being stirred to react 2h at DEG C, pours into nutsch filter and filters, filter residue is obtained after suction filtration, after being rinsed 3 times with deionized water, be put into baking oven
In, 1h is dried at 60 DEG C, obtains modified montmorillonoid, is in mass ratio 1：1：1 mixes antioxidant 1010, carbon black and benzotriazole
Stirring 6min is closed, mixture is obtained, pours the mixture into peach gum with mixture quality 8% and mixture quality 0.5%
In the fermentation tank of biogas slurry, it is sealed by fermentation 7 days at being 30 DEG C in temperature, takes out tunning, obtain modified mixture, by weight
Number meter, 20 parts of modified montmorillonoids are added in the four-hole boiling flask equipped with blender, condenser pipe, charging hopper and thermometer, point
Not Tian Jia 8 parts of modified mixtures, 4 parts of absolute ethyl alcohols, 2 parts of zinc oxide and 8 parts of deionized waters 4h are mixed, and be heated to
It 70 DEG C, pours into nutsch filter and filters after stirring, isolated filter residue, then filter residue is washed with deionized, it is put into 60 DEG C of baking oven
Middle drying 1h, obtains intercalation modifying montmorillonite, weighs 35 parts of polypropylene fibres and is heated to 165 DEG C, is added after its softening
Above-mentioned intercalation modifying montmorillonite mixing, which is placed in double roll mill, is kneaded 1h, and it is mm × 10 80mm × 30 that size is injected after mixing
In the mold of mm, places into geotextiles production equipment and prepare, naturally dry, discharging, you can anti-aging geotextiles are made.
Example 2
It weighs 90g montmorillonites and is put into temperature to calcine 2h in 900 DEG C of kiln, take out calcined product, calcined product is added to
It is 80 in temperature in beaker with a concentration of 3 mol/L salpeter solutions of 40mL and a concentration of 2mol/L sodium carbonate liquors of 15mL
It after being stirred to react 3h at DEG C, pours into nutsch filter and filters, filter residue is obtained after suction filtration, after being rinsed 4 times with deionized water, be put into baking oven
In, 1.5h is dried at 70 DEG C, obtains modified montmorillonoid, is in mass ratio 1：1：1 by antioxidant 1010, carbon black and benzotriazole
7min is mixed, obtains mixture, pours the mixture into peach gum and mixture quality 0.5% with mixture quality 8%
Biogas slurry fermentation tank in, temperature be 35 DEG C at is sealed by fermentation 8 days, taking-up tunning, obtain modified mixture, by weight
25 parts of modified montmorillonoids are added in the four-hole boiling flask equipped with blender, condenser pipe, charging hopper and thermometer by number meter,
9 parts of modified mixtures, 5 parts of absolute ethyl alcohols, 3 parts of zinc oxide and 9 parts of deionized waters are added respectively, and 5h, and heat temperature raising is mixed
It pours into nutsch filter and filters to 80 DEG C, after stirring, isolated filter residue, then filter residue is washed with deionized, it is put into 70 DEG C of baking
2h is dried in case, obtains intercalation modifying montmorillonite, 40 parts of polypropylene fibres is weighed and is heated to 170 DEG C, is added after its softening
It is kneaded 1.5h in addition stating intercalation modifying montmorillonite mixing and being placed in double roll mill, it is the mm of 80mm × 30 that size is injected after mixing
In the mold of × 10 mm, places into geotextiles production equipment and prepare, naturally dry, discharging, you can anti-aging geotechnique is made
Cloth.
Example 3
It weighs 100g montmorillonites and is put into temperature to calcine 3h in 1000 DEG C of kiln, take out calcined product, calcined product is added
Into the beaker with a concentration of 3 mol/L salpeter solutions of 50mL and a concentration of 2mol/L sodium carbonate liquors of 20mL, it is in temperature
It after being stirred to react 4h at 90 DEG C, pours into nutsch filter and filters, filter residue is obtained after suction filtration, after being rinsed 5 times with deionized water, be put into baking
In case, 2h is dried at 80 DEG C, obtains modified montmorillonoid, is in mass ratio 1：1：1 by antioxidant 1010, carbon black and benzotriazole
8min is mixed, obtains mixture, pours the mixture into peach gum and mixture quality 0.5% with mixture quality 8%
Biogas slurry fermentation tank in, temperature be 40 DEG C at is sealed by fermentation 9 days, taking-up tunning, obtain modified mixture, by weight
30 parts of modified montmorillonoids are added in the four-hole boiling flask equipped with blender, condenser pipe, charging hopper and thermometer by number meter,
10 parts of modified mixtures, 6 parts of absolute ethyl alcohols, 4 parts of zinc oxide and 10 parts of deionized waters are added respectively, 6h is mixed, and heat liter
Temperature is poured into nutsch filter to 90 DEG C, after stirring and is filtered, isolated filter residue, then filter residue is washed with deionized, and is put into 80 DEG C
3h is dried in baking oven, obtains intercalation modifying montmorillonite, 45 parts of polypropylene fibres is weighed and is heated to 175 DEG C, after its softening
It adds above-mentioned intercalation modifying montmorillonite mixing and is placed in double roll mill and be kneaded 2h, it is the mm of 80mm × 30 that size is injected after mixing
In the mold of × 10 mm, places into geotextiles production equipment and prepare, naturally dry, discharging, you can anti-aging geotechnique is made
Cloth.
Comparative example
As a comparison case with the anti-aging geotextiles of Shandong company production
Performance detection is carried out to the anti-aging geotextiles in anti-aging geotextiles produced by the present invention and comparative example, testing result is such as
Shown in table 1：
1, test method：
By the geotextiles in example 1~3 and comparative example under the intensity of illumination of 500Lx illumination 10 days, then measure each geotechnique respectively
The tensile strength of cloth, elongation at break, color change, volumetric water content.
Stretching strength retentivity test is detected using tensile strength tester；
Color measurement is detected using color measurement instrument；
Volumetric water content test method：The geotextiles in example 1~3 and comparative example are gone, every piece of geotextiles are cut to grow
500mm, the sample strip of width 50mm are for use, and 2/3rds colored solutions are filled in beaker, and specimen holder is hanging on experiment frame
It places, sample is put into beaker, ensures that sample lower end 20mm immerses colored solutions, after standing 72 hours, sample by original every
It is cut into the fritter of 50mm × 5mm every the cut-off rule of 5mm, is put into the body for claiming aluminium box and the sample that soaks in aluminium box that is marked and weighing
Product Vm.Claim the volume V of aluminium box and original sample.Calculate the volumetric water content of geotextiles：
θ=Vm/V×100%
In formula：θ is volumetric water content；VmFor volume aqueous in geotextiles；V is geotextiles volume；
Table 1
According to 1 data of table it is found that mechanical performance, stretching strength retentivity after anti-aging geotextiles light degradation produced by the present invention
It is high with elongation at break, and the intensity in comparative example is obviously low, illustrates anti-oxidant geotextiles photooxidative degradation produced by the present invention
Slowly, too big variation does not occur for the mechanical performance of geotextiles and color, and anti-aging property is good, and moisture is that photooxidative degradation is critically important
Reason, the moisture inside geotextiles can accelerate photooxidative degradation, and anti-oxidant geotextiles produced by the present invention are anti-compared with comparative example
It is low to aoxidize geotextiles volumetric water content, has slowed down geotextiles ageing time, anti-aging property is good, has broad application prospects.
Claims (5)
1. a kind of preparation method of anti-aging geotextiles, it is characterised in that specifically preparation process is：
（1）It weighs 80~100g montmorillonites and is put into kiln and calcine, take out calcined product, calcined product is added to 30~
After being stirred to react in the beaker of 50mL salpeter solutions and 12~20mL sodium carbonate liquors, pours into nutsch filter and filter, after suction filtration
To filter residue, it is put into baking oven and dries after being rinsed with deionized water, obtain modified montmorillonoid；
（2）Antioxidant 1010, carbon black and benzotriazole are mixed, mixture is obtained, pours the mixture into mixture
It in the peach gum of quality 8% and the fermentation tank of the biogas slurry of mixture quality 0.5%, is sealed by fermentation, takes out tunning, be modified
Mixture；
（3）It counts in parts by weight, modified montmorillonoid is added to four equipped with blender, condenser pipe, charging hopper and thermometer
In mouth flask, modified mixture, absolute ethyl alcohol, zinc oxide and deionized water are added respectively and is mixed, and heat temperature raising, stirring
After pour into nutsch filter and filter, isolated filter residue, then filter residue is washed with deionized is put into baking oven and dry obtains intercalation and changes
Property montmorillonite；
（4）Polypropylene fibre heat temperature raising is weighed, above-mentioned intercalation modifying montmorillonite mixing is added after its softening, and to be placed in double roller mixed
It is kneaded in mill, is injected in mold after mixing, place into geotextiles production equipment and prepare, naturally dry, discharging, you can be made
Anti-aging geotextiles.
2. a kind of preparation method of anti-aging geotextiles according to claim 1, it is characterised in that：Step（1）Described
Calcination temperature be 800~1000 DEG C, calcination time be 1~3h, a concentration of 3 mol/L of salpeter solution, sodium carbonate liquor it is dense
Degree be 2mol/L, reaction temperature be 70~90 DEG C, the reaction time be 2~4h, washing time be 3~5 times, drying temperature be 60~
80 DEG C, drying time is 1~2h.
3. a kind of preparation method of anti-aging geotextiles according to claim 1, it is characterised in that：Step（2）Described
The mass ratio of antioxidant 1010, carbon black and benzotriazole is 1：1：1, mixing time is 6~8min, and fermentation temperature is 30~40
DEG C, fermentation time is 7~9 days.
4. a kind of preparation method of anti-aging geotextiles according to claim 1, it is characterised in that：Step（3）Described
It counts in parts by weight, weighs 20~30 parts of modified montmorillonoids, 8~10 parts of modified mixtures, 4~6 parts of absolute ethyl alcohols, 2~4 respectively
Part zinc oxide and 8~10 parts of deionized waters, mixing time are 4~6h, and heat temperature raising temperature is 70~90 DEG C, drying temperature 60
~80 DEG C, drying time is 1~3h.
5. a kind of preparation method of anti-aging geotextiles according to claim 1, it is characterised in that：Step（4）Described
It counts in parts by weight, weighs 35~45 parts of polypropylene, heat temperature raising temperature is 165~175 DEG C, and mixing time is 1~2h, mold
Size be the mm × 10 of 80mm × 30 mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3783148A1 (en) | 2019-08-22 | 2021-02-24 | Council of Scientific & Industrial Research | A process for the preparation of functionalized weather-resistant and slow decaying geotextiles |
| US20220106743A1 (en) * | 2020-10-05 | 2022-04-07 | SafePlay LLC | Artificial turf system padding layer with integrated geofabric |
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