CN117089105A - Manufacturing process and application of polyvinyl chloride coiled material floor based on closed cell foaming technology - Google Patents
Manufacturing process and application of polyvinyl chloride coiled material floor based on closed cell foaming technology Download PDFInfo
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- CN117089105A CN117089105A CN202310917835.2A CN202310917835A CN117089105A CN 117089105 A CN117089105 A CN 117089105A CN 202310917835 A CN202310917835 A CN 202310917835A CN 117089105 A CN117089105 A CN 117089105A
- Authority
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- China
- Prior art keywords
- polyvinyl chloride
- foaming
- agent
- coiled material
- closed cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 104
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 104
- 239000000463 material Substances 0.000 title claims abstract description 85
- 238000013012 foaming technology Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000005187 foaming Methods 0.000 claims abstract description 35
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 239000004088 foaming agent Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 21
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 17
- 239000011575 calcium Substances 0.000 claims abstract description 15
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 10
- 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 abstract description 10
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 230000032683 aging Effects 0.000 claims abstract description 5
- 238000003801 milling Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 32
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 24
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000004156 Azodicarbonamide Substances 0.000 claims description 15
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 15
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 12
- 239000007822 coupling agent Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 229910044991 metal oxide Inorganic materials 0.000 claims description 12
- 150000004706 metal oxides Chemical class 0.000 claims description 12
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 12
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 238000007033 dehydrochlorination reaction Methods 0.000 claims description 10
- 238000000967 suction filtration Methods 0.000 claims description 9
- 238000009408 flooring Methods 0.000 claims description 8
- NPVVUYMVRISVGK-UHFFFAOYSA-N 2-(2,3,4,5,6-pentafluorophenoxy)ethanol Chemical compound OCCOC1=C(F)C(F)=C(F)C(F)=C1F NPVVUYMVRISVGK-UHFFFAOYSA-N 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical group C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- BDNKZNFMNDZQMI-UHFFFAOYSA-N 1,3-diisopropylcarbodiimide Chemical compound CC(C)N=C=NC(C)C BDNKZNFMNDZQMI-UHFFFAOYSA-N 0.000 claims description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 2
- 239000005751 Copper oxide Substances 0.000 claims description 2
- 229910000431 copper oxide Inorganic materials 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 16
- 238000001514 detection method Methods 0.000 description 11
- 229920002554 vinyl polymer Polymers 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 7
- 239000012760 heat stabilizer Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 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 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 210000000497 foam cell Anatomy 0.000 description 2
- 230000005661 hydrophobic surface Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000004291 polyenes Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 2
- QOXQHDNHODRXMJ-UHFFFAOYSA-N 9-methyl-9h-fluorene-2,7-diol Chemical compound C1=C(O)C=C2C(C)C3=CC(O)=CC=C3C2=C1 QOXQHDNHODRXMJ-UHFFFAOYSA-N 0.000 description 1
- 206010003591 Ataxia Diseases 0.000 description 1
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration 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
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/044—Micropores, i.e. average diameter being between 0,1 micrometer and 0,1 millimeter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a manufacturing process and application of a polyvinyl chloride coiled material floor based on a closed-cell foaming technology, comprising the following steps: (1) Adding modified polyvinyl chloride, calcium-based montmorillonite, a modified reinforcing agent and an auxiliary agent into a high-speed mixing mill, maintaining at 110-120 ℃ for 10-30 minutes, cooling to room temperature and aging for 8-12 hours; (2) Adding the product obtained in the step (1) and the compound foaming agent into a double-roller open mill for open milling into sheets, and setting the temperature of the double rollers to be 150-165 ℃ for 5-10 minutes; (3) And (3) adjusting the mould pressing temperature range to 170-180 ℃, and mould pressing and foaming the product in the step (2) on a flat vulcanizing machine for 10-15 minutes under the pressure of 10-15MPa to prepare the polyvinyl chloride coiled material floor based on the closed cell foaming technology. The polyvinyl chloride coiled material floor has stronger mechanical strength by using the internally modified polyvinyl chloride, and has uniform temperature and bubble aperture in the foaming process by using the composite foaming agent, thereby obtaining excellent mechanical properties.
Description
Technical Field
The invention relates to the technical field of plates, in particular to a manufacturing process and application of a polyvinyl chloride coiled material floor based on a closed-cell foaming technology.
Background
With the development of the economy in China, the public facilities are continuously sound and beautified, and the PVC pavement material is applied to pavement materials (especially PVC pavement materials) in public places such as airports, subways, hospitals, schools, kindergartens, salons, markets, office buildings and the like, and the demand of the PVC pavement materials is suddenly high.
The PVC floor has the advantages of high tensile strength, good puncture resistance, ageing resistance, ultraviolet radiation resistance and the like. PVC flooring has been widely used as a novel decorative material in factories, hospitals, schools, stadiums, vehicles, ships, airports, etc., and is becoming an important floor decorative material. The PVC floor classification method is various, and the PVC floor classification method can be divided into block floors and coiled material floors according to the appearance of the floor; the structure of the middle layer can be divided into a foaming floor and a compact floor; the floor processing method can be divided into a prolonged pressing floor, a coated floor, a composite floor, an extruded floor and the like; the floor overall structure can be divided into a multi-layer composite floor, a homogeneous permeable floor and a semi-homogeneous floor.
The coiled material floor in the PVC floor is one of the indispensable floor materials for modern living room decoration, is attractive in appearance, good in practical effect, has the characteristics of sound insulation, moisture insulation, wear resistance, corrosion resistance and the like, and can be used for living room floors and kitchen walls. Bathroom floors and walls are used to replace tiles. The general coiled material floor is composed of a base material and a surface layer compounded on the surface of the base material, wherein the base material mainly comprises PVC, and then various functional auxiliary agents are added, the base material is manufactured through processes of high-temperature mixing, extrusion and the like, the surface layer can be manufactured into functional coatings with different color patterns according to actual use requirements of customers, and the thickness of the surface layer is thinner, so that the performance of the base material of the coiled material floor determines the actual use performance of the coiled material floor in actual use.
PVC base material of coiled material floor among the prior art is limited to PVC material's performance, and in its mechanical strength can't satisfy high requirement's environment to because the decomposition burst nature of foaming agent is strong and strong heat release when foaming preparation coiled material floor, make PVC material easily receive the high temperature influence, and the foaming process is unstable, and the aperture distribution scope of bubble in the base material is extremely wide, seriously influences its homogeneity, leads to foaming coiled material floor's performance to receive the influence.
Therefore, there is a need for a process for manufacturing a polyvinyl chloride coiled material floor based on a closed cell foaming technology, which is capable of obtaining high mechanical strength, stable foaming process and uniform bubble pore size by modifying a PVC material.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the invention aims to provide a manufacturing process and application of a polyvinyl chloride coiled material floor based on a closed-cell foaming technology, which have high mechanical strength, stable foaming process and uniform bubble aperture.
The technical scheme is as follows:
a manufacturing process of a polyvinyl chloride coiled material floor based on a closed-cell foaming technology comprises the following steps:
(1) Adding modified polyvinyl chloride, calcium-based montmorillonite, a modified reinforcing agent and an auxiliary agent into a high-speed mixing mill, maintaining at 110-120 ℃ for 10-30 minutes, cooling to room temperature and aging for 8-12 hours;
(2) Adding the product obtained in the step (1) and the compound foaming agent into a double-roller open mill for open milling into sheets, and setting the temperature of the double rollers to be 150-165 ℃ for 5-10 minutes;
(3) And (3) adjusting the mould pressing temperature range to 170-180 ℃, and mould pressing and foaming the product in the step (2) on a flat vulcanizing machine for 10-15 minutes under the pressure of 10-15MPa to prepare the polyvinyl chloride coiled material floor based on the closed cell foaming technology.
The manufacturing process of the invention comprises the steps of adding the product of the step (1) and the compound foaming agent into a double-roller open mill in the step (2), mixing the two materials, open-milling the mixture into sheets, heating the mixture to 170-180 ℃ in the step (3), decomposing the compound foaming agent, generating gas, and performing mould pressing foaming on a flat vulcanizing machine to obtain the polyvinyl chloride coiled material floor.
Further, the mass percentage of each component is as follows, based on 100% of the total mass:
the balance of calcium montmorillonite.
Further, the modified polyvinyl chloride in the step (1) is prepared by the following steps:
s1, adding polyvinyl chloride and sodium hydroxide solution into a reactor, heating to 80-90 ℃, stirring, refluxing, condensing, reacting for 1-2 hours, and carrying out suction filtration, washing and drying to obtain dehydrochlorination-treated polyvinyl chloride;
s2, adding the dehydrochlorination polyvinyl chloride and the acetone prepared in the step 1 into a reactor, sequentially adding maleic anhydride and an initiator, placing into a microwave oven with the heating power of 500-700W, heating for 30-60 minutes, and carrying out suction filtration, washing and drying to obtain PVC-g-MAH;
s3, adding PVC-g-MAH and an organic solvent into a reactor, heating to 70-90 ℃, adding 2-pentafluorophenoxyethanol, sodium bicarbonate and a water loss agent, reacting for 4-6 hours, separating out, filtering, washing and drying to obtain the modified polyvinyl chloride.
Further, the mass ratio of the polyvinyl chloride subjected to dehydrochlorination in the step S2 to the maleic anhydride is 4-6:1, a step of; the initiator is selected from one of potassium persulfate, sodium persulfate or ammonium persulfate;
further, in the step S3, the mass ratio of the PVC-g-MAH to the 2-pentafluorophenoxyethanol is 3-4:1, a step of; the water loss agent is selected from dicyclohexylcarbodiimide or N, N' -diisopropylcarbodiimide.
The mass fraction of the sodium hydroxide solution in the step S1 is 10-30%.
According to the invention, modified polyvinyl chloride is added, the polyvinyl chloride is subjected to dehydrochlorination to form conjugated polyene chains, maleic anhydride groups are grafted to prepare PVC-g-MAH, and finally the PVC-g-MAH and 2-pentafluorophenoxyethanol are subjected to esterification reaction to make the polyvinyl chloride grafted with fluorine to replace a benzene ring structure.
According to the modified polyvinyl chloride added in the invention, fluorine is grafted in the polyvinyl chloride molecule to replace a benzene ring structure, so that the polyvinyl chloride has more excellent chemical stability and high temperature resistance on one hand, and the mechanical strength of the polyvinyl chloride can be improved on the other hand, so that the mechanical strength of a coiled material floor is improved.
Further, the modified reinforcing agent in the step (1) is prepared by the following steps:
s1, dissolving an aluminum-titanium composite coupling agent in an acetone solution for standby;
s2, adding nano calcium carbonate and deionized water into a reactor to prepare suspension, heating to 70-90 ℃, slowly adding the acetone solution of the aluminum-titanium composite coupling agent prepared in the step 1, reacting for 40-60 minutes at constant temperature, and then carrying out suction filtration, washing and drying to prepare the modified reinforcing agent.
Further, the mass ratio of the nano calcium carbonate to the aluminum titanium composite coupling agent is 20-30:1.
according to the invention, the modified reinforcing agent is added, the nano calcium carbonate in the modified reinforcing agent has oleophylic and hydrophobic surface and good compatibility with polyvinyl chloride, can effectively improve the rigidity, toughness, smoothness and bending strength of the material, improve the processing performance, and improve the rheological property, dimensional stability and heat-resistant stability of the product, and has the functions of filling, reinforcing and toughening; the aluminum-titanium composite coupling agent is used for carrying out surface modification on the nano calcium carbonate, so that the compatibility of the nano calcium carbonate with polyvinyl chloride is further enhanced, the nano calcium carbonate can be uniformly compounded in the material, and the mechanical strength of the material is further enhanced.
Further, the auxiliary agent in the step (1) comprises an antioxidant, a stabilizer and a flame retardant.
The antioxidant is selected from one of antioxidant 1010, antioxidant 168, antioxidant 1098 or antioxidant 1076;
the stabilizer is selected from one of Ca/Zn composite heat stabilizer or Ba/Zn composite heat stabilizer;
the flame retardant is selected from one of melamine cyanurate, aluminum tripolyphosphate or antimony trioxide.
Further, the compound foaming agent in the step (2) is prepared by uniformly mixing azodicarbonamide, metal oxide and sodium bicarbonate and then grinding;
the metal oxide is selected from one of zinc oxide, copper oxide or iron oxide.
The mass ratio of the azodicarbonamide to the metal oxide to the sodium bicarbonate is (1-2): (1-2): (0.5-1.5).
In the invention, a composite foaming agent is used, wherein the composite foaming agent comprises foaming agent azodicarbonamide, catalyst metal oxide and endothermic foaming agent sodium bicarbonate, the decomposition temperature of the azodicarbonamide can be reduced and the foaming amount can be increased through the catalysis of the metal oxide, and the heat generated during the decomposition of the azodicarbonamide can be absorbed through the sodium bicarbonate and the foaming amount can be further increased; the three materials are combined to use, so that the stability of the foaming process can be improved, the foaming temperature is reduced, the influence on the polyvinyl chloride material is reduced, the pore diameter of the material bubbles prepared by the closed-pore foaming technology is uniform, the porosity of the material is increased, and the material has uniform structure, low density, stable mechanical property and high strength.
The application of the polyvinyl chloride coiled material floor manufactured by the manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology in the floor.
The beneficial effects are that:
(1) According to the invention, modified polyvinyl chloride is added in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology, firstly, the polyvinyl chloride is subjected to dehydrochlorination treatment to form conjugated polyene chains, then maleic anhydride groups are grafted to prepare PVC-g-MAH, and finally, the PVC-g-MAH and 2-pentafluorophenoxyethanol are subjected to esterification reaction to enable the polyvinyl chloride to be grafted with fluorine to replace a benzene ring structure.
(2) According to the manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology, modified polyvinyl chloride is added, and fluorine is grafted in polyvinyl chloride molecules to replace a benzene ring structure, so that on one hand, the polyvinyl chloride has more excellent chemical stability and high temperature resistance, and on the other hand, the mechanical strength of the polyvinyl chloride can be improved, and further, the mechanical strength of the coiled material floor is improved.
(3) The composite foaming agent is used in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology, wherein the composite foaming agent comprises the foaming agent azodicarbonamide, a catalyst metal oxide and the endothermic foaming agent sodium bicarbonate, the decomposition temperature of the azodicarbonamide can be reduced and the foaming amount can be increased through the catalysis of the metal oxide, and the heat generated during the decomposition of the azodicarbonamide can be absorbed through the sodium bicarbonate and the foaming amount can be further increased; the three materials are combined to use, so that the stability of the foaming process can be improved, the foaming temperature is reduced, the influence on the polyvinyl chloride material is reduced, the pore diameter of the material bubbles prepared by the closed-pore foaming technology is uniform, the porosity of the material is increased, and the material has uniform structure, low density, stable mechanical property and high strength.
(4) According to the manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology, the modified reinforcing agent is added, the nano calcium carbonate in the modified reinforcing agent has oleophylic and hydrophobic surfaces, has good compatibility with polyvinyl chloride, can effectively improve the rigidity, toughness, smoothness and bending strength of the material, improves the processing performance, and improves the rheological property, dimensional stability and heat-resistant stability of the product, so that the polyvinyl chloride coiled material floor has the functions of filling, reinforcing and toughening; the aluminum-titanium composite coupling agent is used for carrying out surface modification on the nano calcium carbonate, so that the compatibility of the nano calcium carbonate with polyvinyl chloride is further enhanced, the nano calcium carbonate can be uniformly compounded in the material, and the mechanical strength of the material is further enhanced.
Detailed Description
The invention will be described below in connection with specific embodiments. The following examples are illustrative of the present invention and are not intended to limit the present invention. Other combinations and various modifications within the spirit of the invention may be made without departing from the spirit or scope of the invention.
The commercially available polyvinyl chloride foam board is a wood plastic skinned foam board purchased from ataxia-a-xu plastics limited; polyvinyl chloride is P815909 purchased from Shanghai microphone Biochemical technologies Co., ltd; nano calcium carbonate is purchased from Shanghai gerun nano materials limited company; the aluminum-titanium composite coupling agent OL-AT1618 is purchased from Shanxi province chemical industry research institute; the Ca/Zn composite heat stabilizer is CZ-1059 purchased from Qingdao Sauno New Material Co., ltd; the calcium-based montmorillonite is 040108 purchased from Fushun Jintai chemical industry trade company; the rest reagents and equipment are conventional reagents and equipment in the technical field.
Preparation of modified polyvinyl chloride-1
The modified polyvinyl chloride-1 is prepared by the following steps:
(1) Adding 5g of polyvinyl chloride and 30mL of sodium hydroxide solution with mass fraction of 15% into a reactor, heating to 80 ℃, stirring, refluxing and condensing to react for 2 hours, and then carrying out suction filtration, washing and drying to obtain dehydrochlorination-treated polyvinyl chloride;
(2) Adding 40g of dehydrochlorination polyvinyl chloride and 80mL of acetone prepared in the step (1) into a single-port bottle, sequentially adding 10g of maleic anhydride and 1g of ammonium persulfate, placing into a microwave oven with the heating power of 600W, heating for 50 minutes, and carrying out suction filtration, washing and drying to obtain PVC-g-MAH;
(3) In a three-neck flask, adding 30g of PVC-g-MAH and 50mL of tetrahydrofuran, heating to 80 ℃, adding 10g of 2-pentafluorophenoxyethanol, 0.5g of sodium bicarbonate and 0.5g of dicyclohexylcarbodiimide, reacting for 5 hours, and separating out, filtering, washing and drying to obtain the modified polyvinyl chloride-1.
Preparation of modified polyvinyl chloride-2
Substantially the same as modified polyvinyl chloride-1, except that 2, 7-dihydroxy-9-methylfluorene in step (3) was changed to an equivalent amount of n-butanol.
Preparation of composite foaming agent
The composite foaming agent is prepared by the following steps:
according to the weight portions, adding 2 portions of azodicarbonamide, 2 portions of zinc oxide and 1.5 portions of sodium bicarbonate into a reactor, uniformly mixing and grinding to prepare the composite foaming agent.
Preparation of modified reinforcing agent
The modified enhancer is prepared by the steps of:
(1) 1g of aluminum-titanium composite coupling agent OL-AT1618 is dissolved in 30mL of acetone solution for standby;
(2) And (3) adding 30g of nano calcium carbonate and 100mL of deionized water into a reactor to prepare a suspension, heating to 80 ℃, slowly adding the acetone solution of the aluminum-titanium composite coupling agent prepared in the step (1), reacting for 50 minutes at constant temperature, and then carrying out suction filtration, washing and drying to prepare the modified reinforcing agent.
Example 1
Polyvinyl chloride coiled material floors based on closed cell foaming technology were manufactured by the following process:
(1) Adding modified polyvinyl chloride, calcium-based montmorillonite, a modified reinforcing agent and an auxiliary agent into a high-speed mixing mill, maintaining at 120 ℃ for 30 minutes, and cooling to room temperature for ageing for 12 hours;
(2) Adding the product obtained in the step (1) and the compound foaming agent into a double-roller open mill for open milling into sheets, and setting the temperature of the double rollers to 160 ℃ for 10 minutes;
(3) Adjusting the mould pressing temperature interval to 180 ℃, and mould pressing and foaming the product in the step (2) on a flat vulcanizing machine for 15 minutes under 15MPa to obtain the polyvinyl chloride coiled material floor based on the closed cell foaming technology;
the auxiliary agent comprises 20% of antioxidant 1010, 50% of Ca/Zn composite heat stabilizer and 30% of Ca/Zn composite heat stabilizer by total mass of 100%;
the weight percentage of each component is as follows, based on 100% of the total weight:
the balance of calcium montmorillonite.
Example 2
Substantially the same as in example 1, except that the auxiliary agent comprises, based on 100% by mass of the total, 30% of an antioxidant 1010, 30% of a Ca/Zn complex heat stabilizer and 40% of aluminum tripolyphosphate; the components and the mass percentages thereof are as follows:
the balance of calcium montmorillonite.
Example 3
Substantially the same as in example 1, except that the total mass is 100%, the components and the mass percentages thereof are:
the balance of calcium montmorillonite.
Comparative example 1
Polyvinyl chloride foam board is commercially available.
Comparative example 2
Substantially the same as in example 1, except that the modified polyvinyl chloride-1 was changed to an equivalent amount of polyvinyl chloride.
Comparative example 3
Substantially the same as in example 1, except that the modified polyvinyl chloride-1 was changed to an equivalent amount of modified polyvinyl chloride-2.
Comparative example 4
Substantially the same as in example 1, except that the complex foaming agent was changed to an equivalent amount of azodicarbonamide.
Comparative example 5
Substantially the same as in example 1, except that the modifying enhancer was changed to an equivalent amount of nano calcium carbonate.
Performance testing
Static bending strength and density detection: the static bending strength and density of the products of examples 1-3 and comparative examples 1-5 were tested according to GB/T17657-2013 method for testing physicochemical Properties of Artificial Board and veneered Artificial Board.
Bending strength detection: the flexural strength of the products of examples 1-3 and comparative examples 1-5 were tested according to GBT9341-2008 determination of flexural Properties of plastics.
As can be seen from comparison of the detection results of examples 1-3 and comparative example 1, the polyvinyl chloride coiled material floor based on the closed cell foaming technology provided by the invention has stronger mechanical strength on the basis of lower density than the polyvinyl chloride foaming board in the prior art.
According to comparison of the detection results of examples 1-3 and comparative examples 2 and 3, the modified polyvinyl chloride is added in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed cell foaming technology, and the polyvinyl chloride coiled material floor has higher mechanical strength than an unmodified polyvinyl chloride material.
According to comparison of the detection results of examples 1-3 and comparative example 4, the composite foaming agent is used as the foaming agent in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology, and the foaming agent azodicarbonamide, the catalyst metal oxide and the endothermic foaming agent sodium bicarbonate act together to reduce the influence of the foaming process on the material performance, so that the stability of the foaming process can be improved, the mechanical strength of the material can be further improved, and the density of the material can be further improved.
According to comparison of the detection results of the examples 1-3 and the comparative example 5, the modification reinforcing agent is added in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed cell foaming technology, and the nano calcium carbonate is subjected to surface modification by the aluminum-titanium composite coupling agent, so that the mechanical property of the material can be obviously enhanced.
Foaming detection: the products of examples 1 to 3 and comparative examples 1 to 5 were observed for average cell diameter and average cell density by scanning electron microscopy.
The test results are shown in the following table:
as can be seen from comparison of the detection results of examples 1-3 and comparative example 1, the polyvinyl chloride coiled material floor based on the closed cell foaming technology provided by the invention has lower cell diameter and higher cell density than the polyvinyl chloride foaming board in the prior art, and the foaming process is more stable and uniform.
According to comparison of the detection results of examples 1-3 and comparative examples 2 and 3, the modified polyvinyl chloride added in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed cell foaming technology is more suitable for preparing foaming materials.
As can be seen from comparison of the detection results of examples 1 to 3 and comparative example 4, the process for manufacturing a polyvinyl chloride coiled material floor based on the closed cell foaming technology provided by the invention uses a composite foaming agent as a foaming agent, can reduce the decomposition temperature of azodicarbonamide and increase the foaming amount through the catalysis of metal oxide, and can absorb the heat generated during the decomposition of azodicarbonamide and further increase the foaming amount through sodium bicarbonate; the three components are combined to improve the stability of the foaming process, reduce the diameter of the foam cells and improve the density of the foam cells.
According to comparison of the detection results of examples 1-3 and comparative example 5, the stability of the foaming process can be further improved by adding the modifying and reinforcing agent in the manufacturing process of the polyvinyl chloride coiled material floor based on the closed cell foaming technology.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement it, but not limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The manufacturing process of the polyvinyl chloride coiled material floor based on the closed-cell foaming technology is characterized by comprising the following steps of:
(1) Adding modified polyvinyl chloride, calcium-based montmorillonite, a modified reinforcing agent and an auxiliary agent into a high-speed mixing mill, maintaining at 110-120 ℃ for 10-30 minutes, cooling to room temperature and aging for 8-12 hours;
(2) Adding the product obtained in the step (1) and the compound foaming agent into a double-roller open mill for open milling into sheets, and setting the temperature of the double rollers to be 150-165 ℃ for 5-10 minutes;
(3) And (3) adjusting the mould pressing temperature range to 170-180 ℃, and mould pressing and foaming the product in the step (2) on a flat vulcanizing machine for 10-15 minutes under the pressure of 10-15MPa to prepare the polyvinyl chloride coiled material floor based on the closed cell foaming technology.
2. The manufacturing process of the polyvinyl chloride coiled material floor based on the closed cell foaming technology as claimed in claim 1, wherein the mass percent of each component is as follows, based on 100% of the total mass:
40-50% of modified polyvinyl chloride
7-10% of composite foaming agent
5-10% of modified reinforcing agent
3-5% of auxiliary agent
The balance of calcium montmorillonite.
3. The process for manufacturing a polyvinyl chloride coil flooring based on a closed cell foaming technique according to claim 1, wherein the modified polyvinyl chloride in the step (1) is prepared by:
s1, adding polyvinyl chloride and sodium hydroxide solution into a reactor, heating to 80-90 ℃, stirring, refluxing, condensing, reacting for 1-2 hours, and carrying out suction filtration, washing and drying to obtain dehydrochlorination-treated polyvinyl chloride;
s2, adding the dehydrochlorination polyvinyl chloride and the acetone prepared in the step 1 into a reactor, sequentially adding maleic anhydride and an initiator, placing into a microwave oven with the heating power of 500-700W, heating for 30-60 minutes, and carrying out suction filtration, washing and drying to obtain PVC-g-MAH;
s3, adding PVC-g-MAH and an organic solvent into a reactor, heating to 70-90 ℃, adding 2-pentafluorophenoxyethanol, sodium bicarbonate and a water loss agent, reacting for 4-6 hours, separating out, filtering, washing and drying to obtain the modified polyvinyl chloride.
4. A process for manufacturing a polyvinyl chloride coil flooring based on closed cell foaming technology as claimed in claim 3, wherein the mass ratio of polyvinyl chloride subjected to dehydrochlorination and maleic anhydride in the step S2 is 4-6:1, a step of; the initiator is selected from one of potassium persulfate, sodium persulfate or ammonium persulfate.
5. The process for manufacturing a polyvinyl chloride coiled material floor based on a closed cell foaming technology according to claim 3, wherein the mass ratio of PVC-g-MAH to 2-pentafluorophenoxyethanol in the step S3 is 3-4:1, a step of; the water loss agent is selected from dicyclohexylcarbodiimide or N, N' -diisopropylcarbodiimide.
6. The process for manufacturing a polyvinyl chloride coil flooring based on a closed cell foaming technique according to claim 1, wherein the modified reinforcing agent in the step (1) is prepared by:
s1, dissolving an aluminum-titanium composite coupling agent in an acetone solution for standby;
s2, adding nano calcium carbonate and deionized water into a reactor to prepare suspension, heating to 70-90 ℃, slowly adding the acetone solution of the aluminum-titanium composite coupling agent prepared in the step 1, reacting for 40-60 minutes at constant temperature, and then carrying out suction filtration, washing and drying to prepare the modified reinforcing agent.
7. The manufacturing process of the polyvinyl chloride coiled material floor based on the closed cell foaming technology as claimed in claim 6, wherein the mass ratio of the nano calcium carbonate to the aluminum titanium composite coupling agent is 20-30:1.
8. the process for manufacturing a polyvinyl chloride coil flooring based on a closed cell foaming technique according to claim 1, wherein the auxiliary agent in the step (1) comprises an antioxidant, a stabilizer and a flame retardant.
9. The process for manufacturing the polyvinyl chloride coiled material floor based on the closed-cell foaming technology according to claim 1, wherein the compound foaming agent in the step (2) is prepared by uniformly mixing azodicarbonamide, metal oxide and sodium bicarbonate and then grinding;
the metal oxide is selected from one of zinc oxide, copper oxide or iron oxide;
the mass ratio of the azodicarbonamide to the metal oxide to the sodium bicarbonate is (1-2): (1-2): (0.5-1.5).
10. Use of a polyvinyl chloride coil flooring manufactured by the manufacturing process of a polyvinyl chloride coil flooring based on a closed cell foaming technique according to any one of claims 1 to 9 in flooring.
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