CN112280139A - Waterproof roll and preparation method thereof - Google Patents
Waterproof roll and preparation method thereof Download PDFInfo
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- CN112280139A CN112280139A CN202011054087.2A CN202011054087A CN112280139A CN 112280139 A CN112280139 A CN 112280139A CN 202011054087 A CN202011054087 A CN 202011054087A CN 112280139 A CN112280139 A CN 112280139A
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- parts
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- density polyethylene
- waterproof roll
- antioxidant
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- 238000002360 preparation method Methods 0.000 title claims abstract description 41
- 238000005096 rolling process Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 139
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 41
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 41
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 35
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 33
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 33
- 239000003112 inhibitor Substances 0.000 claims abstract description 32
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 24
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 24
- 238000005303 weighing Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 69
- 238000003756 stirring Methods 0.000 claims description 55
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 50
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 50
- 229920001661 Chitosan Polymers 0.000 claims description 46
- 239000000126 substance Substances 0.000 claims description 38
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 claims description 37
- 239000011259 mixed solution Substances 0.000 claims description 34
- 239000010902 straw Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000243 solution Substances 0.000 claims description 31
- 239000007822 coupling agent Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 26
- 239000012153 distilled water Substances 0.000 claims description 23
- 238000005406 washing Methods 0.000 claims description 23
- 238000004078 waterproofing Methods 0.000 claims description 21
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 19
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 17
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 17
- 239000001913 cellulose Substances 0.000 claims description 16
- 229920002678 cellulose Polymers 0.000 claims description 16
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 16
- 239000012991 xanthate Substances 0.000 claims description 16
- 239000002244 precipitate Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000013049 sediment Substances 0.000 claims description 13
- 238000007873 sieving Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 11
- 230000007935 neutral effect Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 8
- 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 claims description 7
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000004566 IR spectroscopy Methods 0.000 claims description 2
- 238000002441 X-ray diffraction Methods 0.000 claims description 2
- 238000002329 infrared spectrum Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 4
- 241000196324 Embryophyta Species 0.000 description 66
- 230000000052 comparative effect Effects 0.000 description 29
- 239000013522 chelant Substances 0.000 description 16
- 239000002981 blocking agent Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 230000003111 delayed effect Effects 0.000 description 12
- 230000000704 physical effect Effects 0.000 description 10
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 8
- 230000032683 aging Effects 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 8
- 229910001431 copper ion Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- -1 polyethylene Polymers 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 230000004083 survival effect Effects 0.000 description 8
- 239000004721 Polyphenylene oxide Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000005336 cracking Methods 0.000 description 7
- 125000004185 ester group Chemical group 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 7
- 230000035515 penetration Effects 0.000 description 7
- 229920000570 polyether Polymers 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical group [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 4
- 239000005751 Copper oxide Substances 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 4
- 229910000431 copper oxide Inorganic materials 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 230000009920 chelation Effects 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 125000004434 sulfur atom Chemical group 0.000 description 3
- 241000209149 Zea Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 235000019864 coconut oil Nutrition 0.000 description 2
- 239000003240 coconut oil Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 125000005456 glyceride group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000036314 physical performance Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000007589 penetration resistance test Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 229920001059 synthetic polymer Polymers 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2248—Oxides; Hydroxides of metals of copper
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
-
- 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
- C08L2207/066—LDPE (radical process)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/32—Roof garden systems
Abstract
The invention discloses a waterproof coiled material and a preparation method thereof, which relate to the technical field of waterproof coiled materials, and the technical scheme of the waterproof coiled material is characterized in that the waterproof coiled material is prepared from the following raw materials in parts by weight: the root-resisting agent is a root-resisting agent containing copper element; the preparation method comprises the following steps: weighing low-density polyethylene, high-density polyethylene, a defoaming agent, an antioxidant and a root inhibitor; uniformly mixing the materials to obtain a blend; melting and extruding the mixture to obtain molten liquid; and rolling and cooling the molten liquid to obtain the waterproof roll. The waterproof coiled material has the advantages of root puncture resistance and long service life; in addition, the preparation method has the advantages of simple preparation process and suitability for industrial production.
Description
Technical Field
The invention relates to the field of waterproof coiled materials, in particular to a waterproof coiled material and a preparation method thereof.
Background
The waterproof roll is a waterproof material product prepared by impregnating asphalt or polymer waterproof materials on a matrix, and is provided in the form of a roll, and is called as a waterproof roll. The waterproof roll is mainly used for building walls, roofs, tunnels, highways, refuse landfills and the like, and can resist external rainwater and underground water leakage. The product is mainly divided into asphalt waterproof coiled material and macromolecule waterproof coiled material. The waterproof sheet material is a sheet material prepared by mixing, rolling or extruding a synthetic polymer material as a main body with a proper amount of chemical additives and fillers.
The patent application with the prior application reference publication number of CN107163352A discloses a modified polyethylene waterproof coiled material and a preparation method thereof, wherein the waterproof coiled material comprises the following raw materials in parts by weight: 120-150 parts of polyethylene, 20-30 parts of thermoplastic elastomer, 10-25 parts of light calcium carbonate, 5-15 parts of aluminum oxide, 2-6 parts of hydrogenated coconut oil glyceride, 1-6 parts of mica powder, 0.5-1.5 parts of plasticizer, 0.6-2 parts of light stabilizer and 0.5-2 parts of antioxidant. The preparation method of the waterproof roll comprises the steps of mixing and heating raw materials, banburying and granulating, extruding and molding, rolling and naturally cooling. The modified polyethylene waterproof coiled material disclosed by the invention is excellent in waterproof performance, ageing resistance, heat resistance and corrosion resistance, considerable in mechanical properties such as breaking tensile strength, tearing strength and peeling strength, simple and controllable in preparation method process, and the application range is expanded.
However, with the development of cities, commercial buildings and civil buildings are greatly increased, and the greening area is greatly reduced. Therefore, in order to improve living conditions and living environment, urban ecological environment can be greatly improved by greening the roof. Plants with low water demand are the first choice for growing roofs, considering the requirement for water resistance on roofs. However, the roots of plants with low water demand are often developed, so that the roots have strong penetrating power, and meanwhile, the waterproof roll material prepared by using polyethylene as a main material has the problem of aging in the long-time use process, so that the waterproof roll material is easily penetrated by the roots of the plants, the damage to the waterproof roll material is accelerated, and the service life of the waterproof roll material is greatly shortened.
Disclosure of Invention
In view of the defects in the prior art, the first object of the present invention is to provide a waterproof roll material which has the advantages of root puncture resistance and long service life.
The second purpose of the invention is to provide a preparation method of the waterproof roll, which has the advantages of simple preparation process and suitability for industrial production.
In order to achieve the first object, the invention provides the following technical scheme: a waterproof roll is prepared from the following raw materials in parts by weight: 800 parts of low-density polyethylene 600-containing material, 300 parts of high-density polyethylene 200-containing material, 2-4 parts of defoaming agent, 1.5-2.5 parts of antioxidant and 1.5-2.5 parts of root inhibitor, wherein the root inhibitor is a root inhibitor containing copper element.
By adopting the technical scheme, the growth direction can be changed when the plant root system contacts the copper ions in the root-resisting agent, so that the trend that the plant root system continues to grow downwards is weakened, the capability of the plant root system for penetrating the waterproof coiled material is weakened, and the damage of the plant root system to the waterproof coiled material is reduced; meanwhile, the defoaming agent is beneficial to reducing the generation of bubbles in the production process of the waterproof coiled material, so that the compactness of the waterproof coiled material is enhanced, the resistance of the waterproof coiled material penetrated by a plant root system is increased, and the damage of the plant root system to the waterproof coiled material is reduced; in addition, considering the characteristic that the waterproof coiled material prepared by taking the low-density polyethylene and the high-density polyethylene as main bodies is easy to age, the aging and the reduction of mechanical properties of the waterproof coiled material can be delayed through the antioxidant, the damage of a plant root system to the waterproof coiled material is further reduced, and the service life of the waterproof coiled material is prolonged.
Further, the antioxidant is prepared from the following components in a mass ratio of 1: 1 antioxidant 1010 and antioxidant 168.
By adopting the technical scheme, the antioxidant consisting of the antioxidant 1010 and the antioxidant 168 is matched with the main antioxidant and the auxiliary antioxidant through the effects of the main antioxidant and the auxiliary antioxidant, so that not only can free radicals generated in the degradation process of the waterproof roll be captured, but also peroxides generated in the degradation process of the waterproof roll can be decomposed, the oxidation resistance of the waterproof roll is effectively improved, the aging of the waterproof roll is delayed, and the service life of the waterproof roll is prolonged.
Further, the defoaming agent is a polyether modified organic silicon type defoaming agent.
Through adopting above-mentioned technical scheme, polyether modified organic silicon type defoaming agent has combined the continuous bubble performance of inhibiting of polyether class defoaming agent and the quick defoaming performance of organosilicon class defoaming agent to can effectively get rid of the bubble of waterproofing membrane in process of production, thereby be favorable to improving waterproofing membrane's compactness, and then delayed waterproofing membrane's fracture and increased the difficulty degree that plant roots pierces through waterproofing membrane.
Further, the waterproof roll further comprises the following raw materials in parts by weight: 15-20 parts of maleic anhydride grafted low-density polyethylene and 20-25 parts of a coupling agent.
By adopting the technical scheme, the compatibility of the root-resisting agent and other materials is improved by introducing the maleic anhydride grafted low-density polyethylene, so that the root-resisting agent is uniformly dispersed in a mixed system, and the processing performance and the flexibility of the waterproof roll are improved; simultaneously, the waterproof coiled material and the coupling agent play a role together to gather and couple the materials, so that the compactness of the waterproof coiled material is enhanced, the cracking of the waterproof coiled material is delayed, and the difficulty of penetrating the waterproof coiled material by a plant root system is increased.
Further, the root-resisting agent is prepared from the following raw materials in parts by weight: 2-5 parts of chitosan, 80-100 parts of thioglycollic acid, 0.5-1 part of concentrated sulfuric acid, 2-5 parts of montmorillonite and 60-80 parts of copper chloride dihydrate.
Through adopting above-mentioned technical scheme, in order to maintain the long-term root effect of hindering of root agent to the plant, often can add a large amount of root agents that hinder in process of production, because hinder the root agent and directly mix the problem that has the compatibility difference when organic macromolecular substance such as high density polyethylene and low density polyethylene, consequently make and hinder root agent inhomogeneous distribution in the waterproofing membrane of new preparation, and plant roots often is comparatively sensitive, consequently when plant roots directly contacts the waterproofing membrane of new preparation, plant roots receives the root agent influence of high concentration and the impaired phenomenon even death of plant appears. Therefore, mercaptoacetic acid is adopted to modify chitosan under the catalytic action of concentrated sulfuric acid, so that a central coordination atom of a lone electron pair of a sulfur atom in a mercapto group is added to the structure of the chitosan, and the chitosan can generate chelation with copper ions to form a chelate so as to adsorb and fix elements; the chelate is then combined with montmorillonite with a one-dimensional layered nano structure, so that the chelate and the montmorillonite are organically combined on a nano scale, and the root-resisting agent shows a remarkable nano effect, thereby improving the dispersion uniformity and slow effectiveness of the root-resisting agent in the waterproof roll, and simultaneously being beneficial to reducing the direct contact with a plant root system, so that the waterproof roll is beneficial to improving the plant root penetration resistance of the waterproof roll, and the damage to plants caused by the uneven distribution of the root-resisting agent in the newly-made waterproof roll is avoided.
Further, the root-resisting agent is prepared by the following method:
(1) weighing 2-5 parts of chitosan, 80-100 parts of thioglycollic acid, 0.5-1 part of concentrated sulfuric acid, 2-5 parts of montmorillonite and 60-80 parts of copper chloride dihydrate;
(2) adding the mercaptoacetic acid weighed in the step (1) into chitosan, adding concentrated sulfuric acid, and stirring for 45-50h at the stirring speed of 600r/min at the constant temperature of 40 ℃ to obtain a mixed solution A;
(3) filtering the mixed solution A obtained in the step (2), and taking the sediment at the lower layer to obtain a sediment B;
(4) washing the precipitate B obtained in the step (3) with distilled water until the filtrate is neutral; then washing with absolute ethyl alcohol to obtain a washed object C;
(5) drying the washed object C obtained in the step (4) for 8-10h at the constant temperature of 35 ℃ to obtain a dried object D;
(6) grinding the dried substance D obtained in the step (5), sieving the ground substance D with a 200-mesh sieve, analyzing the ground substance D by Fourier infrared spectroscopy, and preparing sulfhydryl chitosan after the detection is qualified;
(7) adding the sulfhydryl chitosan obtained in the step (6) into 20wt% of sodium hydroxide solution to ensure that the volume ratio of the sulfhydryl chitosan to the 20wt% of sodium hydroxide solution is 1:20, then adding copper chloride dihydrate, and stirring at the stirring speed of 800r/min for 40-60min to obtain a mixed solution E;
(8) adding the montmorillonite weighed in the step (1) into distilled water, enabling the volume ratio of the montmorillonite to the distilled water to be 1:20, and stirring at the stirring speed of 800r/min for 60-80min to obtain montmorillonite suspension;
(9) slowly adding the montmorillonite suspension in the step (8) into the mixed solution E, and stirring at the constant temperature of 40 ℃ at the stirring speed of 800r/min for 20-30h to obtain a mixed solution F;
(10) centrifuging the mixed solution F obtained in the step (9) for 10-16min at the rotating speed of 6000rpm, and taking the sediment G of the lower layer;
(11) washing the precipitate G obtained in the step (10) to be neutral by using distilled water, and drying for 8-12H at the temperature of 70 ℃ to obtain a dried substance H;
(12) grinding the dried substance H obtained in the step (11) and sieving the ground substance H with a 200-mesh sieve to obtain micro powder;
(13) and (3) analyzing the micro powder obtained in the step (12) by a Fourier infrared spectrum, an X-ray diffraction, a scanning electron microscope and a projection electron microscope respectively, and preparing the micro powder into the root-resisting agent after the micro powder is detected to be qualified.
By adopting the technical scheme, firstly, mercaptoacetic acid is adopted to modify chitosan to prepare mercapto chitosan; then chelating copper ions to obtain a chelate; finally, adopting a solution intercalation compounding method to intercalate the chelate into a nano-scale lamellar structure of the montmorillonite, destroying the lamellar structure of the montmorillonite by mechanical stirring, realizing the organic combination of the chelate and the montmorillonite on the nano scale, and preparing the root-resisting agent.
Further, the coupling agent is composed of the following raw materials in parts by weight: 70 parts of straw cellulose xanthate and 10 parts of sodium lignosulfonate.
Through adopting above-mentioned technical scheme, straw cellulose xanthate and sodium lignosulfonate gather together and adhere to each material, make the waterproofing membrane who prepares compacter, increased the penetrable degree of difficulty of plant roots.
Further, the straw cellulose xanthate is prepared by the following method:
1) weighing 70 parts of straw fiber, and sequentially crushing, washing and drying;
2) soaking the dried straw fiber in the step 1) in 200 parts of 20wt% sodium hydroxide solution for 1 hour;
3) cleaning the straw fiber soaked in the step 2) with clear water, placing the cleaned straw fiber into 90 parts of 10wt% sodium hydroxide solution, slowly adding 250 parts of carbon disulfide under the constant temperature condition of 32 ℃, and continuously carrying out heat preservation reaction for 2 hours to prepare feed liquid A;
4) adding 200 parts of 25wt% magnesium sulfate solution into the feed liquid A prepared in the step 3), and stirring for 30min at the constant temperature of 32 ℃ at the stirring speed of 800r/min to prepare a feed liquid B;
5) filtering the material liquid B obtained in the step 4), taking the lower-layer material, adding the lower-layer material into an ethanol solution and a 5wt% sodium hydroxide solution, and washing to obtain a material liquid C;
6) drying the feed liquid C obtained in the step 5) for 50min at the temperature of 55 ℃ to obtain the straw cellulose xanthate.
By adopting the technical scheme, the straw fiber is subjected to crushing, water washing and drying, then is subjected to alkalization crosslinking with 20wt% of sodium hydroxide solution to form an intricate crosslinking body, and then is subjected to yellowing reaction with carbon disulfide to prepare the straw cellulose xanthate with high bonding performance.
In order to achieve the second object, the invention provides the following technical scheme: a preparation method of a waterproof coiled material comprises the following steps:
s1, weighing 800 parts of low-density polyethylene 600-containing material, 300 parts of high-density polyethylene 200-containing material, 2-4 parts of defoaming agent, 1.5-2.5 parts of antioxidant and 1.5-2.5 parts of root inhibitor;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the antioxidant and the root inhibitor weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 through a double-screw extruder to obtain molten liquid;
and S4, rolling and cooling the molten liquid obtained in the step S3 to obtain the sheet-shaped waterproof roll.
By adopting the technical scheme, the sheet-shaped waterproof coiled material is obtained by mixing the materials, then performing melt blending to form melt slurry, and finally performing calendering and cooling, and the preparation process is simple and is suitable for industrial production.
In conclusion, the invention has the following beneficial effects:
the growth direction of the plant root system can be changed when the plant root system contacts the copper ions in the root-resisting agent, so that the trend that the plant root system continues to grow downwards is weakened, the penetrating capacity of the plant root system to the waterproof coiled material is weakened, and the damage of the plant root system to the waterproof coiled material is reduced; meanwhile, the production of bubbles in the processing process of the waterproof roll is reduced under the action of the defoaming agent, so that the compactness of the waterproof roll is enhanced; the maleic anhydride grafted low-density polyethylene improves the compatibility of the root-resisting agent and other materials, so that the root-resisting agent is uniformly dispersed in a mixed system, and the processing performance and the flexibility of the waterproof roll are improved; meanwhile, the waterproof coiled material can also play a role together with a coupling agent to gather and couple materials, so that the compactness of the waterproof coiled material is enhanced, the cracking of the waterproof coiled material is delayed, the mechanical property of the waterproof coiled material is enhanced, the resistance penetrated by a plant root system is increased, and the damage of the plant root system to the waterproof coiled material is reduced; in addition, considering the characteristic that a large amount of low-density polyethylene enables the waterproof roll to be easy to age, the aging and the reduction of mechanical performance of the waterproof roll can be delayed through the antioxidant, the damage of a plant root system to the waterproof roll is further reduced, and the service life of the waterproof roll is prolonged.
According to the invention, thioglycollic acid is preferably adopted to modify chitosan under the catalytic action of concentrated sulfuric acid, so that a central coordination atom of a lone electron pair of a sulfur atom in a sulfhydryl group is added to the structure of the chitosan, and the chitosan can generate chelation with copper ions to form a chelate, thereby adsorbing and fixing elements. The chelate is combined with the montmorillonite with the one-dimensional layered nano structure, so that the chelate and the montmorillonite are organically combined on a nano scale, and the root-resisting agent shows a remarkable nano effect, thereby improving the dispersion uniformity of the root-resisting agent in the waterproof roll, being beneficial to improving the plant root penetration resistance of the waterproof roll, and avoiding the damage to plants caused by the uneven distribution of the root-resisting agent in the newly-made waterproof roll.
In the invention, preferably, straw fiber is crushed, washed and dried, then is subjected to alkalization crosslinking with 20wt% of sodium hydroxide solution to form an intricate crosslinking body, and then is subjected to yellowing reaction with carbon disulfide to prepare the straw cellulose xanthate with high bonding performance.
According to the method, the materials are mixed, then melt blending is carried out to form molten slurry, and finally calendering and cooling are carried out, so that the sheet-shaped waterproof roll is obtained, the preparation process is simple, and the method is suitable for industrial production.
Detailed Description
The present invention will be described in further detail with reference to examples.
Preparation example of root-blocking agent
The chitosan in each preparation example of the root-resisting agent is chitosan provided by Guangzhou Hongyi food additive limited company, with the product number v12111 and the content of 99 percent; the thioglycolic acid is thioglycolic acid provided by the chemical company of Jinhuifuda, and the brand is dacollol with the content of 99 percent; the concentrated sulfuric acid is the concentrated sulfuric acid provided by Asahi Xin chemical industry Co., Ltd in Kaifeng city, and the content is 99 percent; the montmorillonite is provided by Zhejiang Fenghong new material stock kg Co, with a product number of DK4, a mesh number of 200 meshes, and a density of 1.7 (g/cm)3) Apparent viscosity 3000(mPa · s); the cupric chloride dihydrate is provided by the popular science and technology company Limited and has brand AnnaijiThe content is 99 percent; the FTIR-900 infrared spectrometer is a FTIR-900 infrared spectrometer of the Ferberbon brand, model 85697; the X-ray diffractometer is a Brooks brand X-ray diffractometer model D8; the scanning electron microscope is of three brands, and the model is EVO; the transmission electron microscope is a transmission electron microscope with model JEM-2100Plus, provided by Ningbo European common instruments Ltd.
Preparation example 1 of root-blocking agent
(1) Weighing 2kg of chitosan, 80kg of thioglycollic acid, 0.5kg of concentrated sulfuric acid, 2kg of montmorillonite and 60kg of copper chloride dihydrate;
(2) adding the mercaptoacetic acid weighed in the step (1) into chitosan, adding concentrated sulfuric acid, and stirring for 45 hours at the constant temperature of 40 ℃ at the stirring speed of 600r/min to obtain a mixed solution A;
(3) filtering the mixed solution A obtained in the step (2), and taking the sediment at the lower layer to obtain a sediment B;
(4) washing the precipitate B obtained in the step (3) with distilled water until the filtrate is neutral; then washing with absolute ethyl alcohol to obtain a washed object C;
(5) drying the washed object C obtained in the step (4) for 8 hours at the constant temperature of 35 ℃ to obtain a dried object D;
(6) grinding the dried substance D obtained in the step (5), sieving the ground substance D with a 200-mesh sieve, analyzing and detecting the ground substance D by an FTIR-900 infrared spectrometer, indicating that thioglycolic acid is successfully coated on the surface of chitosan particles when characteristic peaks of ester groups and characteristic peaks of sulfydryl are observed, and preparing sulfydryl chitosan after the detection is qualified;
(7) adding the sulfhydryl chitosan obtained in the step (6) into 20wt% of sodium hydroxide solution to ensure that the volume ratio of the sulfhydryl chitosan to the 20wt% of sodium hydroxide solution is 1:20, then adding copper chloride dihydrate, and stirring at the stirring speed of 800r/min for 40min to obtain a mixed solution E;
(8) adding the montmorillonite weighed in the step (1) into distilled water, enabling the volume ratio of the montmorillonite to the distilled water to be 1:20, and stirring at the stirring speed of 800r/min for 60min to obtain montmorillonite suspension;
(9) slowly adding the montmorillonite suspension in the step (8) into the mixed solution E, and stirring at the constant temperature of 40 ℃ at the stirring speed of 800r/min for 20h to obtain a mixed solution F;
(10) centrifuging the mixed solution F obtained in the step (9) for 10min at the rotating speed of 6000rpm, and taking a lower-layer precipitate G;
(11) washing the precipitate G obtained in the step (10) to be neutral by using distilled water, and drying for 8 hours at the temperature of 70 ℃ to obtain a dried substance H;
(12) grinding the dried substance H obtained in the step (11) and sieving the ground substance H with a 200-mesh sieve to obtain micro powder;
(13) analyzing and detecting characteristic peaks of ester groups and characteristic peaks of sulfydryl of the micro powder obtained in the step (12) by an FTIR-900 infrared spectrometer; the characteristic diffraction peak intensity of the montmorillonite corresponding to the diffraction angle 2 theta of 7 degrees is obviously weakened or even disappears after the characterization of an X-ray diffractometer; the surface of the micro powder is detected to be qualified through the analysis of a scanning electron microscope and the analysis of a transmission electron microscope, wherein the micro powder is irregular in layer and fragment appearance and loose, rough and uneven in surface, and the root-resisting agent is prepared.
Preparation example 2 of root-blocking agent
(1) Weighing 3.5kg of chitosan, 90kg of thioglycollic acid, 0.8kg of concentrated sulfuric acid, 3.5kg of montmorillonite and 70kg of copper chloride dihydrate;
(2) adding the mercaptoacetic acid weighed in the step (1) into chitosan, adding concentrated sulfuric acid, and stirring for 48 hours at the constant temperature of 40 ℃ at the stirring speed of 600r/min to obtain a mixed solution A;
(3) filtering the mixed solution A obtained in the step (2), and taking the sediment at the lower layer to obtain a sediment B;
(4) washing the precipitate B obtained in the step (3) with distilled water until the filtrate is neutral; then washing with absolute ethyl alcohol to obtain a washed object C;
(5) drying the washed object C obtained in the step (4) for 9 hours at the constant temperature of 35 ℃ to obtain a dried object D;
(6) grinding the dried substance D obtained in the step (5), sieving the ground substance D with a 200-mesh sieve, analyzing and detecting the ground substance D by an FTIR-900 infrared spectrometer, and when a characteristic peak of an ester group and a characteristic peak of a sulfhydryl group are observed, indicating that thioglycolic acid is successfully coated on the surface of chitosan particles, so that the detection is qualified, and obtaining the sulfhydryl chitosan;
(7) adding the sulfhydryl chitosan obtained in the step (6) into 20wt% of sodium hydroxide solution to enable the volume ratio of the sulfhydryl chitosan to the 20wt% of sodium hydroxide solution to be 1:20, then adding copper chloride dihydrate, and stirring at the stirring speed of 800r/min for 50min to obtain a mixed solution E;
(8) adding the montmorillonite weighed in the step (1) into distilled water, enabling the volume ratio of the montmorillonite to the distilled water to be 1:20, and stirring at the stirring speed of 800r/min for 70min to obtain montmorillonite suspension;
(9) slowly adding the montmorillonite suspension in the step (8) into the mixed solution E, and stirring at the constant temperature of 40 ℃ at the stirring speed of 800r/min for 25h to obtain a mixed solution F;
(10) centrifuging the mixed solution F obtained in the step (9) for 13min at the rotating speed of 6000rpm, and taking a lower-layer precipitate G;
(11) washing the precipitate G obtained in the step (10) to be neutral by using distilled water, and drying the precipitate G at the temperature of 70 ℃ for 10 hours to obtain a dried substance H;
(12) grinding the dried substance H obtained in the step (11) and sieving the ground substance H with a 200-mesh sieve to obtain micro powder;
(13) analyzing and detecting characteristic peaks of ester groups and characteristic peaks of sulfydryl of the micro powder obtained in the step (12) by an FTIR-900 infrared spectrometer; the characteristic diffraction peak intensity of the montmorillonite corresponding to the diffraction angle 2 theta of 7 degrees is obviously weakened or even disappears after the characterization of an X-ray diffractometer; the surface of the micro powder is detected to be qualified through the analysis of a scanning electron microscope and the analysis of a transmission electron microscope, wherein the micro powder is irregular in layer and fragment appearance and loose, rough and uneven in surface, and the root-resisting agent is prepared.
Preparation example 3 of root-blocking agent
(1) Weighing 5kg of chitosan, 100kg of thioglycollic acid, 1kg of concentrated sulfuric acid, 5kg of montmorillonite and 80kg of copper chloride dihydrate;
(2) adding the mercaptoacetic acid weighed in the step (1) into chitosan, adding concentrated sulfuric acid, and stirring for 50 hours at the constant temperature of 40 ℃ at the stirring speed of 600r/min to obtain a mixed solution A;
(3) filtering the mixed solution A obtained in the step (2), and taking the sediment at the lower layer to obtain a sediment B;
(4) washing the precipitate B obtained in the step (3) with distilled water until the filtrate is neutral; then washing with absolute ethyl alcohol to obtain a washed object C;
(5) drying the washed object C obtained in the step (4) for 10 hours at the constant temperature of 35 ℃ to obtain a dried object D;
(6) grinding the dried substance D obtained in the step (5), sieving the ground substance D with a 200-mesh sieve, analyzing and detecting the ground substance D by an FTIR-900 infrared spectrometer, and when a characteristic peak of an ester group and a characteristic peak of a sulfhydryl group are observed, indicating that thioglycolic acid is successfully coated on the surface of chitosan particles, so that the detection is qualified, and obtaining the sulfhydryl chitosan;
(7) adding the sulfhydryl chitosan obtained in the step (6) into 20wt% of sodium hydroxide solution to enable the volume ratio of the sulfhydryl chitosan to the 20wt% of sodium hydroxide solution to be 1:20, then adding copper chloride dihydrate, and stirring at the stirring speed of 800r/min for 60min to obtain a mixed solution E;
(8) adding the montmorillonite weighed in the step (1) into distilled water, enabling the volume ratio of the montmorillonite to the distilled water to be 1:20, and stirring for 80min at the stirring speed of 800r/min to obtain montmorillonite suspension;
(9) slowly adding the montmorillonite suspension in the step (8) into the mixed solution E, and stirring for 30 hours at the constant temperature of 40 ℃ at the stirring speed of 800r/min to obtain a mixed solution F;
(10) centrifuging the mixed solution F obtained in the step (9) for 16min at the rotating speed of 6000rpm, and taking a lower-layer precipitate G;
(11) washing the precipitate G obtained in the step (10) to be neutral by using distilled water, and drying for 12 hours at the temperature of 70 ℃ to obtain a dried substance H;
(12) grinding the dried substance H obtained in the step (11) and sieving the ground substance H with a 200-mesh sieve to obtain micro powder;
(13) analyzing and detecting characteristic peaks of ester groups and characteristic peaks of sulfydryl of the micro powder obtained in the step (12) by an FTIR-900 infrared spectrometer; the characteristic diffraction peak intensity of the montmorillonite corresponding to the diffraction angle 2 theta of 7 degrees is obviously weakened or even disappears after the characterization of an X-ray diffractometer; the surface of the micro powder is detected to be qualified through the analysis of a scanning electron microscope and the analysis of a transmission electron microscope, wherein the micro powder is irregular in layer and fragment appearance and loose, rough and uneven in surface, and the root-resisting agent is prepared.
Preparation example 1 of root inhibitor applied to comparative example 2
The preparation example of the root-blocking agent is different from the preparation example 1 of the root-blocking agent in that:
(1) weighing 2kg of chitosan, 80kg of thioglycollic acid, 0.5kg of concentrated sulfuric acid, 2kg of montmorillonite and 60kg of copper chloride dihydrate;
(2) adding the chitosan weighed in the step (1) into a 20wt% sodium hydroxide solution to ensure that the volume ratio of the chitosan to the 20wt% sodium hydroxide solution is 1:20, then adding copper chloride dihydrate, and stirring at the stirring speed of 800r/min for 40min to obtain a mixed solution A;
(3) adding the montmorillonite weighed in the step (1) into distilled water, enabling the volume ratio of the montmorillonite to the distilled water to be 1:20, and stirring at the stirring speed of 800r/min for 60min to obtain montmorillonite suspension;
(4) slowly adding the montmorillonite suspension in the step (3) into the mixed solution A, and stirring at the constant temperature of 40 ℃ at the stirring speed of 800r/min for 20h to obtain a mixed solution B;
(5) centrifuging the mixed solution B obtained in the step (4) for 10min at the rotating speed of 6000rpm, and taking the sediment C of the lower layer;
(6) washing the precipitate C obtained in the step (5) to be neutral by using distilled water, and drying for 8 hours at the temperature of 70 ℃ to obtain a dried substance D;
(7) grinding the dried substance D obtained in the step (6) and sieving the ground substance D with a 200-mesh sieve to obtain micro powder;
(8) analyzing and detecting characteristic peaks of ester groups and characteristic peaks of sulfydryl of the micro powder obtained in the step (7) by an FTIR-900 infrared spectrometer; the characteristic diffraction peak intensity of the montmorillonite corresponding to the diffraction angle 2 theta of 7 degrees is obviously weakened or even disappears after the characterization of an X-ray diffractometer; the surface of the micro powder is detected to be qualified through the analysis of a scanning electron microscope and the analysis of a transmission electron microscope, wherein the micro powder is irregular in layer and fragment appearance and loose, rough and uneven in surface, and the root-resisting agent is prepared.
Preparation example of straw cellulose xanthate
The straw fiber in each preparation example of the straw cellulose xanthate is corn straw fiber but is not limited to the corn straw fiber; the carbon disulfide is provided by Nanjing chemical reagent stock kg limited and has a content of 95%.
1) Weighing 70kg of straw fiber, sequentially crushing and sieving with a 200-mesh sieve, washing with clear water for 3 times, and drying at 40 ℃ for 50 min;
2) soaking the dried straw fiber in the step 1) in 200kg of 20wt% sodium hydroxide solution for 1 h;
3) cleaning the straw fibers soaked in the step 2) with clear water, placing the cleaned straw fibers in 90kg of 10wt% sodium hydroxide solution, slowly adding 250kg of carbon disulfide under the constant temperature condition of 32 ℃, and continuously carrying out heat preservation reaction for 2 hours to prepare feed liquid A;
4) adding 200kg of 25wt% magnesium sulfate solution into the material liquid A prepared in the step 3), and stirring for 30min at the stirring speed of 800r/min under the constant temperature condition of 32 ℃ to prepare material liquid B;
5) filtering the material liquid B obtained in the step 4), taking the lower-layer material, adding the lower-layer material into an ethanol solution and a 5wt% sodium hydroxide solution, and washing to obtain a material liquid C;
6) drying the feed liquid C obtained in the step 5) for 50min at the temperature of 55 ℃ to obtain the straw cellulose xanthate.
Preparation of coupling agent
The straw cellulose xanthate used in the preparation example of the coupling agent is prepared by the preparation example of the straw cellulose xanthate; the sodium lignosulfonate is sodium lignosulfonate made by Jinan Xin Longxuan Cheng bioscience GmbH, having a cargo number of 212, and the content is more than or equal to 70%.
Step 1, weighing 70kg of straw cellulose xanthate and 10kg of sodium lignosulfonate respectively;
and 2, mixing the straw cellulose xanthate weighed in the step 1 with sodium lignin sulfonate, and stirring at a stirring speed of 800r/min for 40min at a constant temperature of 40 ℃ to obtain the coupling agent.
Examples
The low density polyethylene in each example was supplied from Angstrom plastics chemical Co., Ltd of DongguanDensity polyethylene, designation LL7420D, density 0.918g/cm3The melt flow rate is 2.0g/10 min; the high density polyethylene is high density polyethylene provided by Dow of America, and is marked with DGDK-3364, and the density is 0.947g/cm3Melt flow rate (190 ℃/2.16kg)0.75g/10 min; the defoaming agent is polyether modified organic silicon defoaming agent, the polyether modified organic silicon defoaming agent is polyether modified organic silicon defoaming agent provided by new material Limited of Jinan, model LS-1050X, the chemical composition is polyether modified silicon, the content is 99%, and the content of effective substances is 30%; the antioxidant is prepared from the following components in percentage by mass of 1: 1, the antioxidant 1010 is an antioxidant 1010 provided by basf, the type of the antioxidant 1010 is antioxidant AO-60(1010), the content of active ingredients is 99.9%, the antioxidant 168 is antioxidant 168 provided by basf, the type of the antioxidant 168 is antioxidant 168, and the content of the active ingredients is 99.9%; the maleic anhydride grafted low-density polyethylene is the maleic anhydride grafted low-density polyethylene provided by Shanghao plastics raw material Co., Ltd, of Dongguan, and has the melt index (190 ℃, 2.16Kg) of 6g/10min, the grafting rate of 12 percent and the density of 0.914 g/cm.
Example 1
S1, weighing 600kg of low-density polyethylene, 200kg of high-density polyethylene, 2kg of defoaming agent, 1.5kg of antioxidant and 1.5kg of root retardant;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the antioxidant and the root inhibitor weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 by a double-screw extruder (the temperature of each section of the double-screw extruder is 180 ℃ in a first area, 180 ℃ in a second area, 185 ℃ in a third area, 200 ℃ in a fourth area, 200 ℃ in a fifth area, 210 ℃ in a sixth area, the temperature of a machine head is 220 ℃, and the rotating speed of a screw is 40r/min) to obtain molten liquid;
and S4, rolling the molten liquid obtained in the S3, and cooling the rolled liquid at room temperature to obtain the sheet-shaped waterproof roll.
The root inhibitor used in this example is a root inhibitor containing copper element, and the main component is copper oxide.
Example 2
S1, weighing 700kg of low-density polyethylene, 250kg of high-density polyethylene, 3kg of defoaming agent, 2kg of antioxidant and 2kg of root retardant;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the antioxidant and the root inhibitor weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 by a double-screw extruder (the temperature of each section of the double-screw extruder is 180 ℃ in a first area, 180 ℃ in a second area, 185 ℃ in a third area, 200 ℃ in a fourth area, 200 ℃ in a fifth area, 210 ℃ in a sixth area, the temperature of a machine head is 220 ℃, and the rotating speed of a screw is 40r/min) to obtain molten liquid;
and S4, rolling the molten liquid obtained in the S3, and cooling the rolled liquid at room temperature to obtain the sheet-shaped waterproof roll.
The root inhibitor used in this example is a root inhibitor containing copper element, and the main component is copper oxide.
Example 3
S1, weighing 800kg of low-density polyethylene, 300kg of high-density polyethylene, 4kg of defoaming agent, 2.5kg of antioxidant and 2.5kg of root retardant;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the antioxidant and the root inhibitor weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 by a double-screw extruder (the temperature of each section of the double-screw extruder is 180 ℃ in a first area, 180 ℃ in a second area, 185 ℃ in a third area, 200 ℃ in a fourth area, 200 ℃ in a fifth area, 210 ℃ in a sixth area, the temperature of a machine head is 220 ℃, and the rotating speed of a screw is 40r/min) to obtain molten liquid;
and S4, rolling the molten liquid obtained in the S3, and cooling the rolled liquid at room temperature to obtain the sheet-shaped waterproof roll.
The root inhibitor used in this example is a root inhibitor containing copper element, and the main component is copper oxide.
Example 4
S1, weighing 600kg of low-density polyethylene, 200kg of high-density polyethylene, 2kg of defoaming agent, 1.5kg of root inhibitor, 1.5kg of antioxidant, 15kg of maleic anhydride grafted low-density polyethylene and 20kg of coupling agent;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the root inhibitor, the antioxidant, the maleic anhydride grafted low-density polyethylene and the coupling agent weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 by a double-screw extruder (the temperature of each section of the double-screw extruder is 180 ℃ in a first area, 180 ℃ in a second area, 185 ℃ in a third area, 200 ℃ in a fourth area, 200 ℃ in a fifth area, 210 ℃ in a sixth area, the temperature of a machine head is 220 ℃, and the rotating speed of a screw is 40r/min) to obtain molten liquid;
and S4, rolling the molten liquid obtained in the S3, and cooling the rolled liquid at room temperature to obtain the sheet-shaped waterproof roll.
The root-blocking agent used in this example was prepared according to preparation example 1 of the root-blocking agent, and the coupling agent was prepared according to preparation example of the coupling agent.
Example 5
S1, weighing 700kg of low-density polyethylene, 250kg of high-density polyethylene, 3kg of defoaming agent, 2kg of root inhibitor, 2kg of antioxidant, 18kg of maleic anhydride grafted low-density polyethylene and 23kg of coupling agent;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the root inhibitor, the antioxidant, the maleic anhydride grafted low-density polyethylene and the coupling agent weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 by a double-screw extruder (the temperature of each section of the double-screw extruder is 180 ℃ in a first area, 180 ℃ in a second area, 185 ℃ in a third area, 200 ℃ in a fourth area, 200 ℃ in a fifth area, 210 ℃ in a sixth area, the temperature of a machine head is 220 ℃, and the rotating speed of a screw is 40r/min) to obtain molten liquid;
and S4, rolling the molten liquid obtained in the S3, and cooling the rolled liquid at room temperature to obtain the sheet-shaped waterproof roll.
The root-blocking agent used in this example was prepared according to preparation example 1 of the root-blocking agent, and the coupling agent was prepared according to preparation example of the coupling agent.
Example 6
S1, weighing 800kg of low-density polyethylene, 300kg of high-density polyethylene, 4kg of defoaming agent, 2.5kg of root inhibitor, 2.5kg of antioxidant, 20kg of maleic anhydride grafted low-density polyethylene and 25kg of coupling agent;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the root inhibitor, the antioxidant, the maleic anhydride grafted low-density polyethylene and the coupling agent weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 by a double-screw extruder (the temperature of each section of the double-screw extruder is 180 ℃ in a first area, 180 ℃ in a second area, 185 ℃ in a third area, 200 ℃ in a fourth area, 200 ℃ in a fifth area, 210 ℃ in a sixth area, the temperature of a machine head is 220 ℃, and the rotating speed of a screw is 40r/min) to obtain molten liquid;
and S4, rolling and cooling the molten liquid obtained in the step S2 to obtain the sheet-shaped waterproof roll.
The root-blocking agent used in this example was prepared according to preparation example 1 of the root-blocking agent, and the coupling agent was prepared according to preparation example of the coupling agent.
Example 7
This example is different from example 4 in that the root inhibitor used in this example was prepared in preparation example 2 of the root inhibitor.
Example 8
This example is different from example 4 in that the root inhibitor used in this example was prepared in preparation example 3 of the root inhibitor.
Example 9
The difference between this embodiment and embodiment 4 is that the root-stopping agent used in this embodiment is a root-stopping agent containing copper element, and the main component is copper oxide.
Comparative example
Comparative example 1
The comparative example is different from example 1 in that the comparative example is selected from example 1 of a modified polyethylene waterproof roll (application publication No. CN107163352A) and comprises the following raw materials by weight: 130g of polyethylene, 25g of thermoplastic elastomer, 18g of light calcium carbonate, 10g of alumina, 3g of hydrogenated coconut oil glyceride, 4g of mica powder, 0.9g of plasticizer di (2-ethylhexyl) phthalate, 71.3g of light stabilizer UV32and 10761.4g of antioxidant. The preparation method of the modified polyethylene waterproof roll comprises the following steps: (1) weighing the raw materials according to the weight, mixing and stirring uniformly, and heating for 36 minutes at 130 ℃. (2) Banburying and granulating: putting the heated mixture into an internal mixer, carrying out internal mixing at 180 ℃ for 20 minutes, then sending the mixture into a double-roller machine, controlling the temperature of a roller at 180-190 ℃, and then inputting the mixture into a granulator for granulation; the wheel base is arranged at 3.6-3.8 mm, and then the material is discharged. (3) And (3) extrusion molding: and (3) putting the cut granules into a double-screw extruder for extrusion, wherein the highest temperature of a machine barrel is set to be 200-220 ℃, the length-diameter ratio is 20-40, the rotating speed of a screw is controlled to be 40-60 r/min, then molding is carried out by a mold to obtain a molding material, the central temperature of the mold is 200-250 ℃, and the temperatures of two sides of the mold are 5-8 ℃ higher than the central temperature. (4) And (3) putting the molding material into a three-roller cooling embossing machine to roll out the waterproof roll without the composite layer, wherein the temperature of a roller of the three-roller cooling embossing machine is controlled to be 60-70 ℃ at a middle roller, 40-50 ℃ at a lower roller and 75-85 ℃ at an upper roller. (5) And (4) naturally cooling the rolled coil at room temperature, and cutting edges to obtain the product.
Comparative example 2
The comparative example is different from example 1 in that the root-retardant used in the comparative example is preparation example 1 of the root-retardant used in the comparative example.
Comparative example 3
This comparative example differs from example 1 in that no coupling agent was added.
Comparative example 4
This comparative example differs from example 1 in that no coupling agent and no defoaming agent were added.
Comparative example 5
This comparative example differs from example 1 in that no coupling agent and no maleic anhydride grafted low density polyethylene were added.
Performance test
1. And (3) testing physical properties: the waterproof rolls prepared in examples 1 to 9 and comparative examples 1 to 5 were used as test samples according to GB18173.1-2012 part 1 of polymeric waterproof material: sheet material test on material properties of each test sample, the test results are shown in table 1:
TABLE 1 results of physical property measurements of the respective test samples
As can be seen from table 1: the waterproof rolls prepared in the embodiments 1 to 9 have the tensile strength (23 ℃) of 16.3 to 20.5MPa, the elongation at break (23 ℃) of 552-598 percent, the tensile strength retention rate after hot air aging (80 ℃ multiplied by 168h) of 82.1 to 94.1 percent, the elongation at break retention rate after hot air aging (80 ℃ multiplied by 168h) of 74.3 to 87.3 percent, the tensile strength retention rate after artificial weathering of 80.2 to 88.9 percent and the elongation at break retention rate of 71.1 to 80.2 percent, no crack in the low temperature bending property (-35 ℃) result, the tear strength of 71.2 to 82.3kN/m, and no leakage phenomenon; the waterproof coiled material prepared by the invention meets the national specified standard of waterproof coiled materials, has good physical properties and processability and has long service life.
Compared with the embodiment 4, the physical properties of the waterproof roll prepared in the embodiment 1 are lower than those of the embodiment 4, which shows that after the maleic anhydride grafted low-density polyethylene and the coupling agent are added, the maleic anhydride grafted low-density polyethylene improves the compatibility of the root-resisting agent and other materials, so that the root-resisting agent is uniformly dispersed in a mixed system, and the processing performance and the flexibility of the waterproof roll are improved; simultaneously, the waterproof coiled material and the coupling agent play a role together to gather and couple the materials, so that the compactness of the waterproof coiled material is enhanced, the cracking of the waterproof coiled material is delayed, the physical performance of the waterproof coiled material is enhanced, and the service life of the waterproof coiled material is prolonged.
Compared with the comparative example 1, the waterproof coiled material prepared in the comparative example 1 has various physical properties lower than those of the waterproof coiled material prepared in the example 4, and the waterproof coiled material prepared in the invention is shown to have the advantages that compared with the existing waterproof coiled material, the growth direction is changed when a plant root system contacts copper ions in the root-resisting agent, so that the trend that the plant root system continues to grow downwards is weakened, the capability of the plant root system penetrating the waterproof coiled material is weakened, and the damage of the plant root system to the waterproof coiled material is reduced; meanwhile, the production of bubbles in the processing process of the waterproof roll is reduced under the action of the defoaming agent, so that the compactness of the waterproof roll is enhanced; the maleic anhydride grafted low-density polyethylene improves the compatibility of the root-resisting agent and other materials, so that the root-resisting agent is uniformly dispersed in a mixed system, and the processing performance and the flexibility of the waterproof roll are improved; meanwhile, the waterproof coiled material can also play a role together with a coupling agent to gather and couple materials, so that the compactness of the waterproof coiled material is enhanced, the cracking of the waterproof coiled material is delayed, the physical performance of the waterproof coiled material is enhanced, the resistance penetrated by a plant root system is increased, and the damage of the plant root system to the waterproof coiled material is reduced; in addition, considering the characteristic that the waterproof coiled material prepared by taking the low-density polyethylene and the high-density polyethylene as main bodies is easy to age, the aging and the reduction of mechanical properties of the waterproof coiled material can be delayed through the antioxidant, the damage of a plant root system to the waterproof coiled material is further reduced, and the service life of the waterproof coiled material is prolonged.
Compared with the comparative example 3, the waterproof coiled material prepared in the comparative example 3 has various physical properties lower than those of the waterproof coiled material prepared in the example 4, and the materials are gathered and connected through the connecting agent, so that the compactness of the waterproof coiled material is enhanced, the cracking of the waterproof coiled material is delayed, and the difficulty of the plant root system penetrating through the waterproof coiled material is increased.
Compared with the comparative example 4, the waterproof coiled material prepared by the comparative example 4 has various physical properties lower than those of the example 4, and the defoaming agent is used for eliminating bubbles generated in the production process of the waterproof coiled material and the coupling agent is used for enhancing the coupling among materials to play a role together, so that the compactness of the waterproof coiled material is enhanced, the cracking of the waterproof coiled material is delayed, the physical properties of the waterproof coiled material are enhanced, the resistance penetrated by plant roots is increased, the damage of the plant roots to the waterproof coiled material is reduced, and the service life of the waterproof coiled material is prolonged.
Compared with the comparative example 5, in the example 4, each physical property of the waterproof roll prepared in the comparative example 5 is lower than that in the example 4, which shows that the maleic anhydride grafted low-density polyethylene improves the compatibility of each material and the coupling agent enhances the coupling of each material to play a role together, so that the compactness of the waterproof roll is enhanced, the cracking of the waterproof roll is delayed, the physical property of the waterproof roll is enhanced, the resistance penetrated by a plant root system is increased, the damage of the plant root system to the waterproof roll is reduced, and the service life of the waterproof roll is prolonged.
2. Testing the root puncture resistance and the survival rate of plants: the waterproofing membranes prepared in examples 1 to 9 and comparative examples 1 to 5 were used as test samples, and root penetration resistance tests were performed on each test sample according to JC/T1075-2008 root penetration resistance waterproofing membrane for roof planting, while plant survival rates (number of surviving plants/number of planted plants) in each test sample were observed and calculated, and the test results are shown in table 2:
table 2: test results of root puncture resistance and plant survival rate of each test sample
As can be seen from table 2: the waterproofing rolls prepared in examples 1 to 9 have root penetration resistance such that none of the waterproofing rolls is penetrated by the root system of a plant and the survival rate of the plant planted in the waterproofing rolls prepared in examples 1 to 9 is 73.3 to 97.7%, which indicates that the waterproofing rolls prepared by the present invention have not only good root penetration resistance but also a high survival rate of the plant.
Compared with the example 1 and the example 9 respectively through the example 4, although the waterproof roll material prepared in the example 1 and the waterproof roll material prepared in the example 9 are not penetrated by the root system of the plant, the survival rate of the plant planted in the waterproof roll material prepared in the example 1 and the waterproof roll material prepared in the example 9 is obviously lower than that of the example 4, and the invention proves that the central coordination atom of the lone electron pair of the sulfur atom in the sulfydryl is added on the chitosan structure by adopting the thioglycolic acid to modify the chitosan under the catalysis of the concentrated sulfuric acid, so that the central coordination atom can generate chelation with the copper ion to form a chelate, thereby adsorbing and fixing the element. The chelate is combined with the montmorillonite with the one-dimensional layered nano structure to achieve the organic combination of the chelate and the montmorillonite on the nano scale, so that the root-resisting agent shows obvious nano effect, thereby improving the dispersion uniformity and slow effect of the root-resisting agent in the waterproof roll material, and simultaneously being beneficial to reducing the direct contact with plant roots, thereby being beneficial to improving the plant root penetration resistance of the waterproof roll material, and avoiding the damage to plants caused by the uneven distribution of the root-resisting agent in the newly-made waterproof roll material.
Through embodiment 4 contrast 1 respectively, the waterproofing membrane that comparative example 1 was prepared is very easily penetrated by plant roots and is planted the survival rate of the plant that is higher than embodiment 4 in the waterproofing membrane that comparative example 1 was prepared, demonstrates to avoid plant roots to continue growing downwards through adding root-blocking agent to weaken plant roots's the ability that waterproof membrane pierces through to reduce the damage of plant roots to waterproofing membrane.
Comparing 2 by comparing 2 respectively through example 4, the waterproof roll prepared by comparison 2 can be penetrated by the root system of the plant, the penetrating time is longer than that in comparative example 1, and the survival rate of the plant in the waterproof roll prepared by comparative example 2 is obviously lower than that in example 4, which shows that the mercaptoacetic acid is firstly adopted to modify the chitosan to prepare the mercaptochitosan; then chelating copper ions to obtain a chelate; finally, a solution intercalation compounding method is adopted, the chelate is intercalated into a nano-scale lamellar structure of the montmorillonite, the lamellar structure of the montmorillonite is destroyed through mechanical stirring, the organic combination of the chelate and the montmorillonite on the nano scale is realized, and the chelate and the montmorillonite are organically combined on the nano scale, so that the root-resisting agent shows a remarkable nano effect, the dispersion uniformity and slow effect of the root-resisting agent in the waterproof roll are improved, and the direct contact with a plant root system is reduced, therefore, the performance of resisting the penetration of the plant root system of the waterproof roll is improved, and the damage to the plant caused by the uneven distribution of the root-resisting agent in the newly-made waterproof roll is avoided.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The waterproof roll is characterized by being prepared from the following raw materials in parts by weight: 800 parts of low-density polyethylene 600-containing material, 300 parts of high-density polyethylene 200-containing material, 2-4 parts of defoaming agent, 1.5-2.5 parts of antioxidant and 1.5-2.5 parts of root inhibitor, wherein the root inhibitor is a root inhibitor containing copper element.
2. The waterproofing membrane according to claim 1, wherein the antioxidant is prepared by mixing, by mass, 1: 1 antioxidant 1010 and antioxidant 168.
3. The waterproofing membrane according to claim 1, wherein the defoaming agent is a polyether-modified silicone type defoaming agent.
4. The waterproof roll material according to claim 1, further comprising the following raw materials in parts by weight: 15-20 parts of maleic anhydride grafted low-density polyethylene and 20-25 parts of a coupling agent.
5. The waterproof roll according to claim 1, wherein the root inhibitor is prepared from the following raw materials in parts by weight: 2-5 parts of chitosan, 80-100 parts of thioglycollic acid, 0.5-1 part of concentrated sulfuric acid, 2-5 parts of montmorillonite and 60-80 parts of copper chloride dihydrate.
6. The waterproofing membrane according to claim 5, wherein said root-retardant agent is prepared by the following method:
(1) weighing 2-5 parts of chitosan, 80-100 parts of thioglycollic acid, 0.5-1 part of concentrated sulfuric acid, 2-5 parts of montmorillonite and 60-80 parts of copper chloride dihydrate;
(2) adding the mercaptoacetic acid weighed in the step (1) into chitosan, adding concentrated sulfuric acid, and stirring for 45-50h at the stirring speed of 600r/min at the constant temperature of 40 ℃ to obtain a mixed solution A;
(3) filtering the mixed solution A obtained in the step (2), and taking the sediment at the lower layer to obtain a sediment B;
(4) washing the precipitate B obtained in the step (3) with distilled water until the filtrate is neutral; then washing with absolute ethyl alcohol to obtain a washed object C;
(5) drying the washed object C obtained in the step (4) for 8-10h at the constant temperature of 35 ℃ to obtain a dried object D;
(6) grinding the dried substance D obtained in the step (5), sieving the ground substance D with a 200-mesh sieve, analyzing the ground substance D by Fourier infrared spectroscopy, and preparing sulfhydryl chitosan after the detection is qualified;
(7) adding the sulfhydryl chitosan obtained in the step (6) into 20wt% of sodium hydroxide solution to ensure that the volume ratio of the sulfhydryl chitosan to the 20wt% of sodium hydroxide solution is 1:20, then adding copper chloride dihydrate, and stirring at the stirring speed of 800r/min for 40-60min to obtain a mixed solution E;
(8) adding the montmorillonite weighed in the step (1) into distilled water, enabling the volume ratio of the montmorillonite to the distilled water to be 1:20, and stirring at the stirring speed of 800r/min for 60-80min to obtain montmorillonite suspension;
(9) slowly adding the montmorillonite suspension in the step (8) into the mixed solution E, and stirring at the constant temperature of 40 ℃ at the stirring speed of 800r/min for 20-30h to obtain a mixed solution F;
(10) centrifuging the mixed solution F obtained in the step (9) for 10-16min at the rotating speed of 6000rpm, and taking the sediment G of the lower layer;
(11) washing the precipitate G obtained in the step (10) to be neutral by using distilled water, and drying for 8-12H at the temperature of 70 ℃ to obtain a dried substance H;
(12) grinding the dried substance H obtained in the step (11) and sieving the ground substance H with a 200-mesh sieve to obtain micro powder;
(13) and (3) analyzing the micro powder obtained in the step (12) by a Fourier infrared spectrum, an X-ray diffraction, a scanning electron microscope and a projection electron microscope respectively, and preparing the micro powder into the root-resisting agent after the micro powder is detected to be qualified.
7. The waterproofing membrane according to claim 1, wherein said coupling agent is composed of raw materials comprising the following parts by weight: 70 parts of straw cellulose xanthate and 10 parts of sodium lignosulfonate.
8. The waterproofing membrane according to claim 7, wherein said straw cellulose xanthate is prepared by the following method:
weighing 70 parts of straw fiber, and sequentially crushing, washing and drying;
soaking the dried straw fiber in the step 1) in 200 parts of 20wt% sodium hydroxide solution for 1 hour;
cleaning the straw fiber soaked in the step 2) with clear water, placing the cleaned straw fiber into 90 parts of 10wt% sodium hydroxide solution, slowly adding 250 parts of carbon disulfide under the constant temperature condition of 32 ℃, and continuously carrying out heat preservation reaction for 2 hours to prepare feed liquid A;
adding 200 parts of 25wt% magnesium sulfate solution into the feed liquid A prepared in the step 3), and stirring for 30min at the constant temperature of 32 ℃ at the stirring speed of 800r/min to prepare a feed liquid B;
filtering the material liquid B obtained in the step 4), taking the lower-layer material, adding the lower-layer material into an ethanol solution and a 5wt% sodium hydroxide solution, and washing to obtain a material liquid C;
6) drying the feed liquid C obtained in the step 5) for 50min at the temperature of 55 ℃ to obtain the straw cellulose xanthate.
9. The preparation method of the waterproof roll is characterized by comprising the following steps of:
s1, weighing 800 parts of low-density polyethylene 600-containing material, 300 parts of high-density polyethylene 200-containing material, 2-4 parts of defoaming agent, 1.5-2.5 parts of antioxidant and 1.5-2.5 parts of root inhibitor;
s2, uniformly mixing the low-density polyethylene, the high-density polyethylene, the defoaming agent, the antioxidant and the root inhibitor weighed in the S1 at normal temperature to obtain a mixed material;
s3, melting and extruding the blend obtained in the step S2 through a double-screw extruder to obtain molten liquid;
and S4, rolling and cooling the molten liquid obtained in the step S3 to obtain the sheet-shaped waterproof roll.
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Inventor after: Tian Yawei Inventor after: Tian Yakun Inventor after: Tian Xianzhong Inventor after: Yan Zhongmei Inventor after: Chen Xiaogao Inventor after: Kong Weiguang Inventor before: Tian Yawei Inventor before: Tian Yakun Inventor before: Tian Xianzhong Inventor before: Chen Xiaogao Inventor before: Kong Weiguang |
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Effective date of registration: 20220819 Address after: No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041 Applicant after: Shandong hailide waterproof and anticorrosion Co.,Ltd. Applicant after: Shandong Haizhilin Building Materials Technology Co.,Ltd. Address before: No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041 Applicant before: Shandong hailide waterproof and anticorrosion Co.,Ltd. |
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Correction item: Applicant|Address|Applicant Correct: Shandong hailide waterproof and anticorrosion Co.,Ltd.|No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041 False: Shandong hailide waterproof and anticorrosion Co.,Ltd.|No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041|Shandong Haizhilin Building Materials Technology Co.,Ltd. Number: 35-02 Volume: 38 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220928 Address after: No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041 Patentee after: Shandong hailide waterproof and anticorrosion Co.,Ltd. Patentee after: Qingdao haizhilin Building Materials Technology Co.,Ltd. Address before: No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041 Patentee before: Shandong hailide waterproof and anticorrosion Co.,Ltd. |
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| CI03 | Correction of invention patent | ||
| CI03 | Correction of invention patent |
Correction item: Patentee|Address|Patentee Correct: Shandong hailide waterproof and anticorrosion Co.,Ltd.|No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041|Qingdao haizhilin Building Materials Technology Co.,Ltd. False: Shandong hailide waterproof and anticorrosion Co.,Ltd.|No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041|Shandong Haizhilin Building Materials Technology Co., Ltd. Number: 35-02 Volume: 38 Correction item: Patentee|Address|Patentee Correct: Shandong hailide waterproof and anticorrosion Co.,Ltd.|No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041|Qingdao haizhilin Building Materials Technology Co.,Ltd. False: Shandong hailide waterproof and anticorrosion Co.,Ltd.|No. 125-8, Shuyuan Road, Licang District, Qingdao City, Shandong Province 266041|Shandong Haizhilin Building Materials Technology Co.,Ltd. Number: 35-02 Page: The title page Volume: 38 |
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| OR01 | Other related matters | ||
| OR01 | Other related matters |