CN113801390B - Algae adhesion prevention enhanced flexible PE pipe and preparation method thereof - Google Patents
Algae adhesion prevention enhanced flexible PE pipe and preparation method thereof Download PDFInfo
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- CN113801390B CN113801390B CN202111201568.6A CN202111201568A CN113801390B CN 113801390 B CN113801390 B CN 113801390B CN 202111201568 A CN202111201568 A CN 202111201568A CN 113801390 B CN113801390 B CN 113801390B
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- 241000195493 Cryptophyta Species 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 44
- 230000002265 prevention Effects 0.000 title claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 90
- 239000000314 lubricant Substances 0.000 claims abstract description 58
- 239000011256 inorganic filler Substances 0.000 claims abstract description 57
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 57
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000000227 grinding Methods 0.000 claims abstract description 41
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 37
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 37
- 238000002156 mixing Methods 0.000 claims abstract description 31
- 239000004359 castor oil Substances 0.000 claims abstract description 23
- 235000019438 castor oil Nutrition 0.000 claims abstract description 23
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims abstract description 23
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 23
- 239000004334 sorbic acid Substances 0.000 claims abstract description 23
- 229940075582 sorbic acid Drugs 0.000 claims abstract description 23
- 235000010199 sorbic acid Nutrition 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000008018 melting Effects 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 156
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 78
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 45
- 239000000919 ceramic Substances 0.000 claims description 41
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 36
- 239000004005 microsphere Substances 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 30
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 10
- 230000004048 modification Effects 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 235000019437 butane-1,3-diol Nutrition 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 239000004595 color masterbatch Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
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- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 description 77
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 14
- -1 Polyethylene Polymers 0.000 description 13
- 239000000945 filler Substances 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 12
- 239000004594 Masterbatch (MB) Substances 0.000 description 11
- 239000013535 sea water Substances 0.000 description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 239000004408 titanium dioxide Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000002791 soaking Methods 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 238000002715 modification method Methods 0.000 description 4
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 description 3
- 239000003242 anti bacterial agent Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
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- 229920000547 conjugated polymer Polymers 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011325 microbead Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- GCZLBHOAHLBGEA-UHFFFAOYSA-N 3-butyl-1,2-benzothiazole 1-oxide Chemical compound C1=CC=C2C(CCCC)=NS(=O)C2=C1 GCZLBHOAHLBGEA-UHFFFAOYSA-N 0.000 description 1
- YMTZCQOAGFRQHV-UHFFFAOYSA-N 3-methyl-4,5-dihydro-1,2-thiazole Chemical compound CC1=NSCC1 YMTZCQOAGFRQHV-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000009364 mariculture Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
Abstract
The invention discloses an algae adhesion prevention enhanced flexible PE pipe and a preparation method thereof, belonging to the technical field of resin materials, wherein the raw materials of the enhanced flexible PE pipe comprise HDPE, EVA, inorganic filler and modified lubricant; the modified lubricant is prepared by melting hydrogenated castor oil and 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding sorbic acid, and grinding for 8-10min. According to the algae adhesion preventing enhanced flexible PE pipe and the preparation method thereof, the modified lubricant is added into the preparation raw materials, so that the algae adhesion preventing performance of the prepared pipe is effectively improved, the quantity of algae adhered to the pipe is reduced, and the problems that the quality of conveyed water is influenced and the pipe aging is accelerated due to the fact that the algae are adhered to and propagate on the inner wall and the outer wall of the pipe in large quantities are avoided; meanwhile, a proper amount of inorganic filler is added into the raw materials to reinforce the pipe fitting, so that the pipe fitting is more durable in outdoor environments at sea and seaside.
Description
Technical Field
The invention belongs to the technical field of resin materials, and particularly relates to an algae adhesion prevention enhanced flexible PE pipe and a preparation method thereof.
Background
Polyethylene (PE) is a widely used thermoplastic resin, and has the advantages of low moisture absorption and good flow properties, and the processed products of PE are pipes, sheets, films, containers, and the like. PE articles generally have the characteristics of low cost, high toughness, and corrosion resistance. The pipe made of PE is suitable for use in the offshore environment due to its excellent corrosion resistance. At present, for indoor mariculture, seawater needs to be extracted from the sea, filtered and sterilized, and then is poured into a culture pond for use. Because the seaside environment is humid and seawater carries a large amount of microorganisms and organic matters, part of the PE pipes have certain light transmittance, so that a large amount of algae are easy to adhere to and grow on the inner and outer pipe walls of the pipe fitting for conveying seawater. The algae attached to the outer wall of the pipe fitting can accelerate the aging of the PE pipe and reduce the service life of the PE pipe; after a large amount of algae attached to the inner wall of the pipe fitting for a long time are propagated, metabolites of the algae easily influence the conveyed water quality, and particularly for fry breeding, the fry is more sensitive to the water quality and easily influences the survival rate of the fry breeding. Because the seawater suction filtration pipeline for indoor seawater cultivation often needs to be moved, although the problem of algae attachment can be avoided by adopting the stainless steel pipe, the stainless steel pipe cannot be used instead of a PE pipe due to no bendability and large weight. Therefore, it is an urgent problem to provide a reinforced flexible PE pipe that is not easy to adhere to algae.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problems to be solved by the invention are as follows: how to reduce the adhesiveness of the reinforced flexible PE tube algae.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the algae adhesion preventing reinforced flexible PE pipe comprises HDPE, EVA, inorganic filler and a modified lubricant;
the modified lubricant comprises hydrogenated castor oil, 1,3-butanediol, and sorbic acid;
the preparation method of the modified lubricant comprises the following steps: melting hydrogenated castor oil and 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding sorbic acid, and grinding for 8-10min.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe comprises the following steps:
s1, drying HDPE, EVA, inorganic filler and modified lubricant at 55-70 ℃ for later use;
s2, mixing the dried HDPE, the dried EVA, the inorganic filler and the modified lubricant, then extruding the mixture through a double-screw extruder, then outputting the mixture through a mold in a molding manner, and finally cooling, drawing and cutting the mixture to obtain the enhanced flexible PE pipe;
wherein the temperature of each section of the double-screw extruder is controlled to be 200-250 ℃.
The invention has the beneficial effects that: according to the algae adhesion prevention enhanced flexible PE pipe, the modified lubricant is added into the preparation raw materials, so that the algae adhesion resistance of the manufactured pipe is effectively improved, the adhesion amount of algae on the pipe is reduced, and the problems that the water quality is conveyed and the pipe aging is accelerated due to the influence of the adhesion of algae and the mass propagation of algae on the inner wall and the outer wall of the pipe are avoided; meanwhile, a proper amount of inorganic filler is added into the raw materials to reinforce the pipe fitting, so that the pipe fitting is more durable in outdoor environments at sea and seaside;
the preparation method provided by the invention is simple in modification method, easy in raw material obtaining and easy in modification process operation, and is suitable for large-scale production.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.
The most key concept of the invention is as follows: hydrogenated castor oil, 1,3-butanediol and sorbic acid are used for preparing the modified lubricant, so that the algae adhesion resistance of the polymer product is improved.
The invention provides an algae adhesion prevention enhanced flexible PE pipe, which comprises HDPE, EVA, an inorganic filler and a modified lubricant;
the modified lubricant comprises hydrogenated castor oil, 1,3-butanediol, and sorbic acid;
the preparation method of the modified lubricant comprises the following steps: melting hydrogenated castor oil and 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding sorbic acid, and grinding for 8-10min.
Further, the mass ratio of the hydrogenated castor oil, 1,3-butanediol and sorbic acid is 2.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe comprises the following steps:
s1, drying HDPE, EVA, inorganic filler and modified lubricant at 55-70 ℃ for later use;
s2, mixing the dried HDPE, EVA, inorganic filler and modified lubricant, then extruding the mixture by a double-screw extruder, outputting the mixture through a die, and finally cooling, drawing and cutting the mixture to obtain an enhanced flexible PE pipe;
wherein the temperature of each section of the double-screw extruder is controlled to be 200-250 ℃.
As can be seen from the above description, the beneficial effects of the present invention are: according to the algae adhesion preventing enhanced flexible PE pipe provided by the invention, the modified lubricant is added into the preparation raw material, the modified lubricant is mainly hydrogenated castor oil, 1,3-butanediol and sorbic acid are added in a matching manner, 1,3-butanediol and sorbic acid have an algae inhibiting effect, can be fully mixed with the hydrogenated castor oil to play the effect, can be well dispersed in a polymer under the effect of the hydrogenated castor oil, can remarkably improve the algae adhesion resistance of a polymer product, and can remarkably reduce the adhesion amount of algae under the same use time and use mode.
The preparation method of the algae adhesion prevention enhanced flexible PE pipe provided by the invention is simple in lubricating oil modification method, the used raw materials are easy to obtain, the modification process is easy to operate, the preparation method is basically unchanged compared with the existing flexible PE pipe production, and enterprises do not need to change a large amount of equipment on the basis of the existing equipment.
Further, the inorganic filler comprises modified nano calcium carbonate and nano hollow ceramic microspheres;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene in chlorobenzene to obtain a modification solution, dispersing nano calcium carbonate in n-hexane, adding the modification solution under a closed condition, stirring at a constant temperature of 35-45 ℃ for 4-8 hours, and volatilizing the n-hexane to obtain the modified nano calcium carbonate.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe comprises the following steps:
s1, drying HDPE, EVA, modified nano calcium carbonate, nano hollow ceramic microspheres and a modified lubricant at 55-70 ℃ for later use;
s2, mixing the dried modified nano calcium carbonate and the nano hollow ceramic microspheres, and grinding for 5-8min to obtain an inorganic filler;
s3, mixing the dried HDPE, the dried EVA, the modified lubricant and the inorganic filler, then extruding the mixture through a double-screw extruder, then forming and outputting the mixture through a die, and finally cooling, drawing and cutting the mixture to obtain the enhanced flexible PE pipe;
wherein the temperature of each section of the double-screw extruder is controlled to be 200-250 ℃.
As can be seen from the above description, the PE pipe has problems of low strength and poor heat resistance. In order to improve the problem of the PE product, the PE can be modified from raw materials, for example, modification is performed in a polymerization stage, for example, process parameters are controlled and optimized to control physical parameters such as molecular weight, and other branched chains are introduced to a molecular chain of the polyethylene to change the molecular chain structure of the polyethylene so as to improve the physical parameters. The modification method is suitable for source enterprises to modify PE, and for downstream product production enterprises, the method has low operability and high required cost. Aiming at such enterprises, physical modification methods are mostly adopted, namely, other high polymers, organic matters and inorganic matters are added to further improve the physical property parameters of the obtained PE product. The inorganic substances commonly used are talcum powder, kaolin, calcium carbonate, glass fiber, carbon fiber and the like. The addition of the fillers can obviously improve the rigidity of the obtained product, but the compatibility of the inorganic filler and the polymer is poor, and particularly for the easily agglomerated nano-scale inorganic filler, the application performance and the application range of the easily agglomerated nano-scale inorganic filler are obviously influenced due to poor compatibility and dispersibility, so that the easily agglomerated nano-scale inorganic filler is not suitable for being added in a large amount;
the modified nano calcium carbonate and the nano hollow ceramic microspheres are used as inorganic fillers, the problem that the nano calcium carbonate is easy to agglomerate and not easy to disperse when used alone can be obviously solved by adding the nano hollow ceramic microspheres, the problem that the polymer flowability and processability are poor due to the large addition of the calcium carbonate can be solved, meanwhile, the rigidity and durability of the obtained PE pipe can be improved, and the density of a polymer product is reduced, so that the PE pipe is more suitable for being used in a high-corrosion environment such as seawater;
the nano calcium carbonate in the filler is modified by the conjugated polymer before being used as the filler, and the conjugated polymer is attached to the nano calcium carbonate to modify the surface of the nano calcium carbonate, so that the hydrophilic characteristic of the nano calcium carbonate can be improved, the interface compatibility and the dispersibility with the polymer when the nano calcium carbonate is used as the filler are improved, and the effect of enhancing the mechanical property of a product can be fully exerted;
when the polymer product receives an external force, the modified nano calcium carbonate and the nano hollow ceramic microspheres are uniformly distributed to form a large number of micro deformation regions in the polymer material, so that a large number of external forces are absorbed, stress is transferred, and punching skill is consumed, thereby achieving the effect of strengthening and toughening;
the filler is modified, so that the problem that the existing nano filler is not easy to disperse and agglomerate, so that the nano filler is not easy to add in a large amount, the use of a polymeric material can be reduced by increasing the addition of the filler, and the modified filler and the modified lubricant have good compatibility with a polymer when being used simultaneously.
Compared with the method that modified nano calcium carbonate and nano hollow ceramic microspheres are respectively added into S3 and mixed with other raw materials, the preparation of the inorganic filler by grinding is more favorable for improving the fluidity of the inorganic filler, so that the inorganic filler can exert better modification performance.
Further, the mass ratio of the modifying solution to the nano calcium carbonate is 1-1.2.
Further, the mass ratio of the modified nano calcium carbonate to the nano hollow ceramic microspheres is 2-4:1.
From the above description, it is known that the higher the amount of nano hollow ceramic beads added is, the better, but the excessive amount of nano hollow ceramic beads causes the decrease in processability of the polymer.
Further, the algae adhesion prevention reinforced flexible PE pipe comprises the following components in parts by weight: 80-100 parts of HDPE, 15-25 parts of inorganic filler, 20-30 parts of EVA and 2-4 parts of modified lubricant.
Further, the anti-algae adhesion reinforced flexible PE pipe also comprises 0.5-2 parts of an auxiliary agent.
Further, the auxiliary agent is an antioxidant and/or an antibacterial agent; the antioxidant is an antioxidant 1076 and/or an antioxidant 168; the antibacterial agent is at least one of nano silver, zinc oxide, silver-loaded calcium phosphate, nano silver-loaded titanium dioxide, n-butyl benzisothiazolinone or methylisothiazolinone.
As can be seen from the above description, the anti-aging performance of the pipe fitting in outdoor use can be improved by further adding the antioxidant, and the antibacterial capability of the pipe fitting can be improved by adding the antibacterial agent.
Further, the algae adhesion prevention reinforced flexible PE pipe also comprises 1-3 parts of black masterbatch.
Further, in the preparation method of the algae adhesion prevention reinforced flexible PE pipe, a ball mill is used for grinding in S2, and a grinding medium of the ball mill is iron balls or ceramic balls with the diameter of 1-5 cm.
Further, mixing the HDPE, the EVA, the inorganic filler and the modified lubricant by a high-speed mixer, wherein the rotating speed of the high-speed mixer is 300-500r/min, and the mixing time is 15-20min.
Example 1:
the algae adhesion preventing reinforced flexible PE pipe is prepared from the following components:
100kg of HDPE, 20kg of inorganic filler, 20kg of EVA and 4kg of modified lubricant;
the inorganic filler consists of modified nano calcium carbonate and nano hollow ceramic microspheres in a mass ratio of 2.5;
the preparation method of the modified lubricant comprises the following steps: melting 2kg hydrogenated castor oil and 1kg 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding 1kg sorbic acid, and grinding for 9min;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene in chlorobenzene to obtain a modified solution with the poly (2,5-dihexyloxy-1,3) benzene concentration of 2mg/mL, dispersing nano calcium carbonate in n-hexane, adding the modified solution under a closed condition, stirring at a constant temperature of 45 ℃ for 6 hours, and volatilizing the n-hexane to obtain the modified nano calcium carbonate; the mass ratio of the modifying liquid to the nano calcium carbonate is 1.2.
The preparation method of the algae adhesion prevention reinforced flexible PE pipe of embodiment 1 specifically includes the following steps:
s1, melting and mixing 2kg of hydrogenated castor oil and 1kg of 1,3-butanediol, cooling and grinding to the particle size of 5-20 mu m, and then adding 1kg of sorbic acid and grinding for 9min to obtain a modified lubricant;
s2, drying the HDPE, the EVA, the modified nano calcium carbonate, the nano hollow ceramic microspheres and the modified lubricant at 60 ℃ for later use;
s3, mixing the dried modified nano calcium carbonate and the nano hollow ceramic microspheres, and grinding for 5min by using a ball mill to obtain an inorganic filler;
wherein, the grinding medium of the ball mill is iron balls or ceramic balls with the diameter of 1-5 cm;
s4, placing the dried HDPE, the dried EVA, the modified lubricant and the inorganic filler obtained in the S2 into a high-speed mixer for mixing for 15min, wherein the rotating speed of the high-speed mixer is 500r/min;
then extruding the mixture by a double-screw extruder, outputting the mixture through a die in a forming way, and finally cooling, drawing and cutting the mixture to obtain an enhanced flexible PE pipe;
the temperature of a first area of the double-screw extruder is 200 ℃, the temperature of a second area is 210 ℃, the temperature of a third area is 220 ℃, the temperature of a fourth area is 230 ℃, the temperature of an inlet and an outlet is 240 ℃, the rotating speed of a screw of the double-screw extruder is 350r/min, and the length-diameter ratio of the double-screw extruder is 40.
Example 2:
the algae adhesion preventing reinforced flexible PE pipe is prepared from the following components:
90kg of HDPE, 22kg of inorganic filler, 20kg of EVA and 3kg of modified lubricant;
the inorganic filler is composed of modified nano calcium carbonate and nano hollow ceramic microspheres in a mass ratio of 3.5;
the preparation method of the modified lubricant comprises the following steps: melting 1.5kg hydrogenated castor oil and 0.75kg 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding 0.75kg sorbic acid, and grinding for 8min;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene in chlorobenzene to obtain a modified solution with the poly (2,5-dihexyloxy-1,3) benzene concentration of 2mg/mL, dispersing nano calcium carbonate in n-hexane, then adding the modified solution under a closed condition, stirring at a constant temperature of 40 ℃ for 8 hours, volatilizing the n-hexane to obtain the modified nano calcium carbonate, wherein the mass ratio of the modified solution to the nano calcium carbonate is 1.2.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe of example 2 is the same as that of example 1.
Example 3:
the algae adhesion preventing reinforced flexible PE pipe is prepared from the following components:
100kg of HDPE, 20kg of inorganic filler, 30kg of EVA and 4kg of modified lubricant;
the inorganic filler consists of modified nano calcium carbonate and nano hollow ceramic microspheres in a mass ratio of 3:1;
the preparation method of the modified lubricant comprises the following steps: melting 2kg hydrogenated castor oil and 1kg 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding 1kg sorbic acid, and grinding for 10min;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene in chlorobenzene to obtain a modified solution with the poly (2,5-dihexyloxy-1,3) benzene concentration of 2mg/mL, dispersing nano calcium carbonate in n-hexane, then adding the modified solution under a closed condition, stirring at a constant temperature of 42 ℃ for 4 hours, volatilizing the n-hexane to obtain the modified nano calcium carbonate, wherein the mass ratio of the modified solution to the nano calcium carbonate is 1.2.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe of example 3 is the same as that of example 1.
Example 4:
the algae adhesion preventing reinforced flexible PE pipe is prepared from the following components:
80kg of HDPE, 15kg of inorganic filler, 25kg of EVA, 3kg of modified lubricant, 0.5kg of methylisothiazolinone and 1kg of polyethylene black master batch;
the inorganic filler consists of modified nano calcium carbonate and nano hollow ceramic microspheres in a mass ratio of 4:1;
the preparation method of the modified lubricant comprises the following steps: melting 1.5kg hydrogenated castor oil and 0.75kg 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding 0.75kg sorbic acid, and grinding for 8min;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene into chlorobenzene to obtain a modified solution with the concentration of poly (2,5-dihexyloxy-1,3) benzene of 2mg/mL, dispersing nano calcium carbonate into n-hexane, then adding the modified solution under a closed condition, stirring for 8 hours at a constant temperature of 35 ℃, volatilizing the n-hexane to obtain the modified nano calcium carbonate, wherein the mass ratio of the modified solution to the nano calcium carbonate is 1.1.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe of embodiment 4 specifically includes the following steps:
s1, melting and mixing 1.5kg of hydrogenated castor oil and 0.75kg of 1,3-butanediol, cooling, grinding to a particle size of 5-20 mu m, adding 0.75kg of sorbic acid, and grinding for 8min to obtain a modified lubricant;
s2, drying HDPE, EVA, modified nano calcium carbonate, nano hollow ceramic microspheres, a modified lubricant, a polyethylene black master batch and methylisothiazolinone at 55 ℃ for later use;
s3, mixing the dried modified nano calcium carbonate and the nano hollow ceramic microspheres, and grinding for 8min by using a ball mill to obtain an inorganic filler;
wherein, the grinding medium of the ball mill is iron balls or ceramic balls with the diameter of 1-5 cm;
s4, placing the dried HDPE, the dried EVA and the inorganic filler obtained in the S2, the modified lubricant, the polyethylene black master batch and the methylisothiazoline into a high-speed mixer for mixing for 20min, wherein the rotating speed of the high-speed mixer is 300r/min;
then extruding the mixture by a double-screw extruder, forming and outputting the mixture by a die, and finally cooling, drawing and cutting the mixture to obtain an enhanced flexible PE pipe;
the temperature of a first area of the double-screw extruder is 210 ℃, the temperature of a second area is 220 ℃, the temperature of a third area is 230 ℃, the temperature of a fourth area is 240 ℃, the temperature of an inlet and an outlet is 250 ℃, the rotating speed of a screw of the double-screw extruder is 300r/min, and the length-diameter ratio of the double-screw extruder is 40.
Example 5:
the algae adhesion preventing reinforced flexible PE pipe is prepared from the following components:
100kg of HDPE, 25kg of inorganic filler, 28kg of EVA, 4kg of modified lubricant, 1kg of antioxidant 1076, 1kg of nano silver-loaded titanium dioxide and 3kg of polyethylene black masterbatch;
the inorganic filler is composed of modified nano calcium carbonate and nano hollow ceramic microspheres with the mass ratio of 2:1;
the preparation method of the modified lubricant comprises the following steps: melting 2kg hydrogenated castor oil and 1kg 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding 1kg sorbic acid, and grinding for 9min;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene into chlorobenzene to obtain a modified solution with the poly (2,5-dihexyloxy-1,3) benzene concentration of 2mg/mL, dispersing nano calcium carbonate into n-hexane, adding the modified solution under a closed condition, stirring at a constant temperature of 45 ℃ for 4 hours, volatilizing the n-hexane to obtain the modified nano calcium carbonate, wherein the mass ratio of the modified solution to the nano calcium carbonate is 1:1.
The preparation method of the algae adhesion preventing reinforced flexible PE pipe of embodiment 5 specifically includes the following steps:
s1, melting and mixing 2kg of hydrogenated castor oil and 1kg of 1,3-butanediol, cooling, grinding to a particle size of 5-20 mu m, adding 1kg of sorbic acid, and grinding for 9min to obtain a modified lubricant;
s2, drying HDPE, EVA, modified nano calcium carbonate, nano hollow ceramic microspheres, a modified lubricant, a polyethylene black master batch, nano silver-loaded titanium dioxide and an antioxidant 1076 at 70 ℃ for later use;
s3, mixing the dried modified nano calcium carbonate and the nano hollow ceramic microspheres, and grinding for 6min by using a ball mill to obtain an inorganic filler;
wherein, the grinding medium of the ball mill is iron balls or ceramic balls with the diameter of 1-5 cm;
s4, placing the dried HDPE, the dried EVA, the modified lubricant, the inorganic filler obtained in the S2, the polyethylene black master batch, the nano silver-loaded titanium dioxide and the antioxidant into a high-speed mixer for mixing for 18min, wherein the rotating speed of the high-speed mixer is 400r/min;
then extruding the mixture by a double-screw extruder, forming and outputting the mixture by a die, and finally cooling, drawing and cutting the mixture to obtain an enhanced flexible PE pipe;
wherein the temperature of the first zone of the double-screw extruder is 215 ℃, the temperature of the second zone is 225 ℃, the temperature of the third zone is 235 ℃, the temperature of the fourth zone is 245 ℃, the temperature of the inlet and outlet is 245 ℃, the rotating speed of a screw of the double-screw extruder is 250/min, and the length-diameter ratio of the double-screw extruder is 40.
Example 6:
the reinforced flexible PE pipe is prepared from the following components:
100kg of HDPE, 24kg of inorganic filler, 25kg of EVA, 1kg of nano silver-loaded titanium dioxide and 3kg of polyethylene black master batch;
the inorganic filler is composed of modified nano calcium carbonate and nano hollow ceramic microspheres with the mass ratio of 2:1;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene into chlorobenzene to obtain a modified solution with the poly (2,5-dihexyloxy-1,3) benzene concentration of 2mg/mL, dispersing nano calcium carbonate into n-hexane, adding the modified solution under a closed condition, stirring at a constant temperature of 45 ℃ for 4 hours, volatilizing the n-hexane to obtain the modified nano calcium carbonate, wherein the mass ratio of the modified solution to the nano calcium carbonate is 1:1.
The method for preparing the enhanced flexible PE pipe of embodiment 6 specifically includes the steps of:
s1, drying HDPE, EVA, modified nano calcium carbonate, nano hollow ceramic microspheres, polyethylene black master batch and nano silver-loaded titanium dioxide at 70 ℃ for later use;
s3, mixing the dried modified nano calcium carbonate and the nano hollow ceramic microspheres, and grinding for 6min by using a ball mill to obtain an inorganic filler;
wherein, the grinding medium of the ball mill is iron balls or ceramic balls with the diameter of 1-5 cm;
s4, placing the dried HDPE, EVA and the inorganic filler obtained in the S2, the polyethylene black master batch, the nano silver-loaded titanium dioxide and the antioxidant into a high-speed mixer for mixing for 18min, wherein the rotating speed of the high-speed mixer is 400r/min;
then extruding the mixture by a double-screw extruder, forming and outputting the mixture by a die, and finally cooling, drawing and cutting the mixture to obtain an enhanced flexible PE pipe;
wherein the temperature of the first zone of the double-screw extruder is 215 ℃, the temperature of the second zone is 225 ℃, the temperature of the third zone is 235 ℃, the temperature of the fourth zone is 245 ℃, the temperature of the inlet and outlet is 245 ℃, the rotating speed of a screw of the double-screw extruder is 250/min, and the length-diameter ratio of the double-screw extruder is 40.
Comparative example 1:
the PE pipe is prepared from the following components:
100kg of HDPE, 20kg of inorganic filler, 20kg of EVA;
the inorganic filler is composed of modified nano calcium carbonate and nano hollow ceramic microspheres in a mass ratio of 2.5; the preparation method of the modified nano calcium carbonate is the same as that of the embodiment 1.
The PE pipe of comparative example 1 was prepared in the same manner as in example 1 except that no modifying lubricant was added.
Comparative example 2:
the PE pipe is prepared from the following components:
100kg of HDPE, 20kg of inorganic filler, 20kg of EVA and 4kg of modified lubricant; the composition and preparation method of the modified lubricant are the same as those of example 1;
the inorganic filler is composed of nano calcium carbonate and nano hollow ceramic microspheres in a mass ratio of 2.5.
The PE pipe of comparative example 2 was prepared in the same manner as in example 1 except that the nano calcium carbonate added was not modified.
Comparative example 3:
the PE pipe is prepared from the following components:
100kg of HDPE, 20kg of modified nano calcium carbonate, 20kg of EVA and 4kg of modified lubricant; the composition and preparation method of the modified nano calcium carbonate and the modified lubricant are the same as those of example 1;
the PE pipe of comparative example 3 was prepared in the same manner as in example 1 except that only modified nano calcium carbonate was added to the inorganic filler and nano hollow ceramic micro beads were not added.
The HDPE of examples 1-6 and comparative examples 1-3 was purchased from dow HDPE 2480, nano calcium carbonate was purchased from shanghai liang Jiang Taibai chemical, EVA was purchased from dow 3170, nano hollow ceramic microbeads were purchased from shanghai glenza, hydrogenated castor oil was purchased from shandong xu photochemical, butylene glycol was purchased from knanan pluhua chemical, sorbic acid was purchased from shanghai lanun chemical, antioxidant 1076 was purchased from basf, polyethylene black masterbatch was purchased from cabbit (guangzhou) new material. All the examples and comparative examples have the same source of the same named starting material.
Test example 1:
the PE pipes obtained in example 1 and comparative examples 1-3 were tested for their performance (the PE pipes of dn125 and SDR11 were selected as test objects), and the test methods were referred to GB/T8806-2008, GB/T8804.3-2003, GB/T6671-2001 and GB/T6111-2018, and the results are shown in Table 1.
TABLE 1
Test example 2:
the PE tube tested in test example 1 was subjected to an algae adhesion test. Taking 1 meter of each group of PE pipes in test example 1, repeating 3 groups, soaking all the pipes to be tested in the same batch of sampled seawater for 24 hours, taking out, standing for 24 hours at the room temperature of 26-32 ℃ and the relative humidity of 60-70% under the condition that natural light can be irradiated, repeating the soaking and standing operation for 15 times, performing suction filtration on seawater for each soaking from the sea side, and taking water for 15 times in total;
soaking all the pipe fittings to be tested in the same batch of sampled seawater for 24h, taking out, standing for 6 days at the room temperature of 26-32 ℃ under the condition that the relative humidity is 70-80% and the natural light can be irradiated, repeating the soaking and standing operation for 5 times, performing suction filtration on seawater for each soaking from the sea side, and taking water for 5 times in total.
Then cutting all the pipe fittings in half, circling out areas with attached algae by using a black marker pen, respectively calculating the attaching areas of the algae on the inner pipe and the outer pipe of the PE pipe, and calculating the attaching rate of the algae; the attached algae were then scraped from the inner and outer tubes, dried to a moisture content of less than 5% and weighed, the results are shown in table 2.
Outer tube algae attachment (%) = (total outer tube wall area-total algae attachment area on outer tube wall)/total outer tube wall area;
inner pipe algae attachment ratio (%) = (total inner pipe wall area-total algae attachment area on inner pipe wall)/total inner pipe wall area.
TABLE 2
In conclusion, the algae adhesion preventing enhanced flexible PE pipe provided by the invention has good tensile and compressive properties and good algae adhesion resistance;
by improving the composition of the lubricant in the raw materials and adding 1,3-butanediol and sorbic acid, the adhesion amount of algae on the inner wall and the outer wall of the pipe fitting can be obviously reduced, and the problem that the service life of the pipe fitting and the water quality of conveyed water are influenced by a large amount of algae adhered to the pipe fitting in the long-term use process is avoided;
the surface modification is carried out on the nano calcium carbonate serving as the filler in the raw materials, and the nano hollow ceramic microspheres are matched for use, so that the compatibility and the dispersibility of the inorganic filler and the polymer can be improved, meanwhile, the problems of great reduction of the flowability and the processability of the raw materials can be avoided on the premise of adding more fillers, the due effect of the fillers can be exerted by a great amount of the added fillers, and the PE pipe can have higher toughness and rigidity.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.
Claims (6)
1. The algae adhesion preventing reinforced flexible PE pipe is characterized by comprising the following components in parts by weight: 80-100 parts of HDPE, 15-25 parts of inorganic filler, 20-30 parts of EVA and 2-4 parts of modified lubricant;
the modified lubricant comprises hydrogenated castor oil, 1,3-butanediol, and sorbic acid;
the preparation method of the modified lubricant comprises the following steps: melting hydrogenated castor oil and 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding sorbic acid, and grinding for 8-10min;
the inorganic filler comprises modified nano calcium carbonate and nano hollow ceramic microspheres;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene in chlorobenzene to obtain a modification solution, dispersing nano calcium carbonate in n-hexane, adding the modification solution under a closed condition, stirring at a constant temperature of 35-45 ℃ for 4-8 hours, and volatilizing the n-hexane to obtain the modified nano calcium carbonate;
the mass ratio of the modified nano calcium carbonate to the nano hollow ceramic microspheres is 2-4:1;
the preparation method of the algae adhesion preventing reinforced flexible PE pipe comprises the following steps:
s1, drying HDPE, EVA, modified nano calcium carbonate, nano hollow ceramic microspheres and a modified lubricant at 55-70 ℃ for later use;
s2, mixing the dried modified nano calcium carbonate and the nano hollow ceramic microspheres, and grinding for 5-8min to obtain an inorganic filler;
s3, mixing the dried HDPE, the dried EVA, the modified lubricant and the inorganic filler, then extruding the mixture through a double-screw extruder, then forming and outputting the mixture through a die, and finally cooling, drawing and cutting the mixture to obtain the enhanced flexible PE pipe;
wherein the temperature of each section of the double-screw extruder is controlled to be 200-250 ℃.
2. The algae adhesion enhancing flexible PE pipe of claim 1, further comprising 0.5-2 parts of an auxiliary agent.
3. The algae adhesion-preventing reinforced flexible PE pipe according to claim 1, further comprising 1-3 parts of black color masterbatch.
4. The preparation method of the algae adhesion prevention enhanced flexible PE pipe is characterized by comprising the following steps of:
s1, drying HDPE, EVA, inorganic filler and modified lubricant at 55-70 ℃ for later use;
s2, mixing the dried HDPE, EVA, inorganic filler and modified lubricant, then extruding the mixture by a double-screw extruder, outputting the mixture through a die, and finally cooling, drawing and cutting the mixture to obtain an enhanced flexible PE pipe;
wherein the temperature of each section of the double-screw extruder is controlled at 200-250 ℃;
the algae adhesion preventing reinforced flexible PE pipe is characterized by comprising the following components in parts by weight: 80-100 parts of HDPE, 15-25 parts of inorganic filler, 20-30 parts of EVA and 2-4 parts of modified lubricant;
the modified lubricant comprises hydrogenated castor oil, 1,3-butanediol, and sorbic acid;
the preparation method of the modified lubricant comprises the following steps: melting hydrogenated castor oil and 1,3-butanediol, mixing, cooling, grinding to particle size of 5-20 μm, adding sorbic acid, and grinding for 8-10min;
the inorganic filler comprises modified nano calcium carbonate and nano hollow ceramic microspheres;
the preparation method of the modified nano calcium carbonate comprises the following steps:
dissolving and dispersing poly (2,5-dihexyloxy-1,3) benzene in chlorobenzene to obtain a modified solution, dispersing nano calcium carbonate in n-hexane, adding the modified solution under a closed condition, stirring at a constant temperature of 35-45 ℃ for 4-8 hours, and volatilizing the n-hexane to obtain modified nano calcium carbonate;
the mass ratio of the modified nano calcium carbonate to the nano hollow ceramic microspheres is 2-4:1.
5. The method for preparing the algae adhesion preventing reinforced flexible PE pipe according to claim 4, wherein in S2, a ball mill is used for grinding, and grinding media of the ball mill are iron balls or ceramic balls with the diameter of 1-5 cm.
6. The method for preparing the algae adhesion preventing reinforced flexible PE pipe according to claim 4, wherein the HDPE, the EVA, the inorganic filler and the modified lubricant are mixed by a high-speed mixer, the rotating speed of the high-speed mixer is 300-500r/min, and the mixing time is 15-20min.
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Application publication date: 20211217 Assignee: Fujian Yatong Marine Equipment Co.,Ltd. Assignor: Fujian Aton Advanced Materials Technology Co.,Ltd. Contract record no.: X2023350000452 Denomination of invention: Anti algae adhesion enhanced flexible PE pipe and its preparation method Granted publication date: 20221025 License type: Common License Record date: 20231208 |