CN115449169A - Chlorinated polyvinyl chloride pipe for automatic water spraying fire extinguishing and preparation method thereof - Google Patents
Chlorinated polyvinyl chloride pipe for automatic water spraying fire extinguishing and preparation method thereof Download PDFInfo
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- CN115449169A CN115449169A CN202110644095.0A CN202110644095A CN115449169A CN 115449169 A CN115449169 A CN 115449169A CN 202110644095 A CN202110644095 A CN 202110644095A CN 115449169 A CN115449169 A CN 115449169A
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- Prior art keywords
- polyvinyl chloride
- pipe
- fire extinguishing
- chlorinated polyvinyl
- stabilizer
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- 239000004801 Chlorinated PVC Substances 0.000 title claims abstract description 61
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 title claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000005507 spraying Methods 0.000 title abstract description 33
- 239000003381 stabilizer Substances 0.000 claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 29
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004609 Impact Modifier Substances 0.000 claims abstract description 17
- 239000000460 chlorine Substances 0.000 claims abstract description 17
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 17
- 239000004005 microsphere Substances 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 13
- SXFKVWHNCURLRL-UHFFFAOYSA-N N[SiH](OC1=CC=CC=C1)O[SiH2]O Chemical compound N[SiH](OC1=CC=CC=C1)O[SiH2]O SXFKVWHNCURLRL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 9
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 8
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 7
- 239000000049 pigment Substances 0.000 claims abstract description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 6
- 239000003086 colorant Substances 0.000 claims abstract description 5
- 239000006084 composite stabilizer Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 238000013329 compounding Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 10
- -1 polyethylene Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- HBHZKFOUIUMKHV-UHFFFAOYSA-N chembl1982121 Chemical compound OC1=CC=C2C=CC=CC2=C1N=NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HBHZKFOUIUMKHV-UHFFFAOYSA-N 0.000 claims description 8
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 8
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000001993 wax Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000004200 microcrystalline wax Substances 0.000 claims description 7
- 235000019808 microcrystalline wax Nutrition 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- FQUDPIIGGVBZEQ-UHFFFAOYSA-N acetone thiosemicarbazone Chemical compound CC(C)=NNC(N)=S FQUDPIIGGVBZEQ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 4
- SUXCALIDMIIJCK-UHFFFAOYSA-L disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(N=NC3=CC=C(C=C3C)C=3C=C(C(=CC=3)N=NC=3C(=C4C=CC=CC4=C(C=3)S([O-])(=O)=O)N)C)=CC(S([O-])(=O)=O)=C21 SUXCALIDMIIJCK-UHFFFAOYSA-L 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- MQKUGDKDFPFSDV-UHFFFAOYSA-N P(O)OPO.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1 Chemical compound P(O)OPO.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1.C(C)(C)(C)C1=C(C=CC(=C1)C(C)(C)C)C1=CC=C(C=C1)C1=CC=CC=C1 MQKUGDKDFPFSDV-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 238000005660 chlorination reaction Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- YAHBZWSDRFSFOO-UHFFFAOYSA-L dimethyltin(2+);2-(2-ethylhexoxy)-2-oxoethanethiolate Chemical group CCCCC(CC)COC(=O)CS[Sn](C)(C)SCC(=O)OCC(CC)CCCC YAHBZWSDRFSFOO-UHFFFAOYSA-L 0.000 claims description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000578 graft copolymer Polymers 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 description 9
- 239000004408 titanium dioxide Substances 0.000 description 6
- 229920000734 polysilsesquioxane polymer Polymers 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000006136 alcoholysis reaction Methods 0.000 description 4
- WLDHEUZGFKACJH-UHFFFAOYSA-K amaranth Chemical compound [Na+].[Na+].[Na+].C12=CC=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(O)=C1N=NC1=CC=C(S([O-])(=O)=O)C2=CC=CC=C12 WLDHEUZGFKACJH-UHFFFAOYSA-K 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- 229960001545 hydrotalcite Drugs 0.000 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002715 modification method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/22—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L27/24—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers modified by chemical after-treatment halogenated
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/045—Polysiloxanes containing less than 25 silicon atoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of polyvinyl chloride resin, in particular to a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing and a preparation method thereof. The chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing is composed of the following raw materials in parts by weight: 100 portions of CPVC resin, 1.3 to 1.5 portions of composite stabilizer, 7 to 8 portions of impact modifier, 1.5 to 1.8 portions of processing aid, 1.5 to 2.0 portions of lubricant, 0.3 to 0.5 portion of antioxidant, 1.0 to 1.2 portions of colorant and 0.005 to 0.01 portion of pigment; wherein the auxiliary stabilizer is acetone amidothiourea modified octa (aminophenyltrioxasilane) microspheres; the processing aid is polyvinylidene chloride. The chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing has excellent processing stability and mechanical strength, and the impact resistance of the pipe is improved under the condition of keeping the chlorine content of the pipe; the invention also provides a preparation method of the composition.
Description
Technical Field
The invention relates to the technical field of polyvinyl chloride resin, in particular to a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing and a preparation method thereof.
Background
The pipe materials which can be used for the automatic water spraying fire extinguishing system comprise galvanized steel pipes, copper pipes, stainless steel pipes, chlorinated polyvinyl chloride (CPVC) pipe materials and the like, the CPVC pipe materials are the only plastic pipe materials which can be applied to the automatic water spraying fire extinguishing system, and the CPVC pipe materials have the use history of nearly forty years abroad. Since the 1980 s, automatic sprinkler systems for foreign homes and public buildings began to use the pipe, and are currently used mainly in hotels, residences, apartments, dormitories, complex buildings, and the like.
The national standards of the Chinese engineering construction Association of the China 'technical Specification for CPVC pipe engineering of automatic Water spray fire extinguishing systems' (CECS 234-2008) and the national product standards 'part 19 of automatic Water spray fire extinguishing systems' were formulated successively from 2004 in China: plastic pipelines and pipe fittings (GB/T5135.19-2010), however, the quality of chlorinated polyvinyl chloride CPVC resin in China is not high at that time and cannot meet the production requirement of fire fighting pipes, so that the application of the CPVC resin in an automatic water spraying fire extinguishing system is always in a stagnation state. With the improvement of the quality of domestic CPVC resin, the application of the CPVC resin in an automatic water-spraying fire-extinguishing system becomes possible, two national standards of 'design specification of the automatic water-spraying fire-extinguishing system' and 'construction and acceptance specification of the automatic water-spraying fire-extinguishing system' are revised by the national ministry of public security of 2017, the CPVC pipe is definitely applicable to the automatic water-spraying fire-extinguishing system, and the rapid development of the industry of the chlorinated polyvinyl chloride pipe for automatic water-spraying fire extinguishing is accelerated.
The chlorinated polyvinyl chloride pipe for automatic water-spraying fire extinguishing requires that the chlorine content (mass percent) is not less than 60 percent, and the chlorine content (mass percent) of the CPVC resin is generally about 67.5 percent, so that the total addition amount of necessary additives including a stabilizer, a lubricant, an impact modifier, a pigment and the like in the formula of the chlorinated polyvinyl chloride pipe for automatic water-spraying fire extinguishing is limited. 3-6 parts by weight of impact modifier is added to the chlorinated polyvinyl chloride pipe for automatic water-spraying fire extinguishing invented by patent CN 103849094B, 3-6 parts by weight of impact modifier is also added to the chlorinated polyvinyl chloride pipe for automatic water-spraying fire extinguishing invented by patent CN 110804261A, 3-5 parts by weight of impact modifier is also added to the chlorinated polyvinyl chloride pipe for automatic water-spraying fire extinguishing invented by patent CN 111690221A, so that the impact resistance effect of the pipe is inevitably poor, and meanwhile, too many stabilizers are used in the reports disclosed by the patent technology, and the pipe cannot achieve the optimal performance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the chlorinated polyvinyl chloride pipe for automatic water spraying fire extinguishing has excellent processing stability and mechanical strength, and improves the shock resistance of the pipe under the condition of keeping the chlorine content of the pipe; the invention also provides a preparation method of the composition.
The chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing is composed of the following raw materials in parts by weight:
the CPVC resin is prepared by chlorination modification of a suspension method polyvinyl chloride (PVC) resin, the average polymerization degree of the PVC resin is 1000, and the mass fraction of chlorine element in the prepared CPVC resin is 67.5-68%.
The composite stabilizer is formed by compounding an organic tin stabilizer and an auxiliary stabilizer. Preferably, the composite stabilizer is formed by compounding an organic tin stabilizer and an auxiliary stabilizer according to a mass ratio of 10.
The organotin stabilizer is methyltin mercaptide, such as TM-181FS.
The auxiliary stabilizer is prepared by modifying cage-type polysilsesquioxane microspheres, and is preferably acetone-amidothiourea-modified octa (aminophenyltrioxasilane).
The modification method comprises the following steps: adding octa (aminophenyltrioxasilane) microspheres into an n-heptane solution of acetone thiosemicarbazone, stirring in a high-speed mixer to fully volatilize the n-heptane solvent, adding a polyvinyl alcohol dispersant and deionized water, stirring, adjusting the pH value to 8.0-8.5, centrifugally dewatering, and drying to obtain the auxiliary stabilizer.
Preferably, the modification method is:
(1) Adding 500g of octakis (aminophenyltrioxasilane) microspheres with the particle size of 100-200 nanometers into a high-speed mixer, adding 15 g-20 g of n-heptane solution of acetone thiosemicarbazone with the mass concentration of 10%, heating to 95 ℃, stirring for 20 minutes to fully volatilize the n-heptane solvent, cooling to 45 ℃, and discharging;
(2) Adding 20g of treated octa (aminophenyltrioxasilane) microspheres into a beaker, adding 0.01g of polyvinyl alcohol dispersing agent with alcoholysis degree of 80% and 50g of deionized water, stirring, adjusting the pH value to 8.0-8.5 by using sodium hydroxide, continuously stirring for 20 minutes, centrifugally dewatering, and drying to obtain the auxiliary stabilizer.
The impact modifier is one or more than two of Acrylate Copolymer (ACR), methyl methacrylate-butadiene-styrene ternary graft copolymer (MBS), chlorinated Polyethylene (CPE), nitrile Butadiene Rubber (NBR) and ethylene-ethyl acetate copolymer (EVA) which are mixed in any proportion.
Preferably, the impact modifier is a methyl methacrylate-butadiene-styrene terpolymer (MBS), such as MBS B-564 from Brillouin, japan.
The processing aid is polyvinylidene chloride (PVDC).
The lubricant is two or more of polyethylene wax, microcrystalline wax, oxidized polyethylene wax, stearic acid, stearate and amide compounds.
The antioxidant is organophosphorus antioxidant tetrakis (2,4-di-tert-butylphenyl-4,4' biphenyl) diphosphonite, such as HostanoxP-EPQ from Clien.
The colorant is rutile titanium dioxide, such as R-902.
The pigment is a mixture of permanent orange yellow and fast scarlet with a mass ratio of 1:1.
The invention relates to a preparation method of chlorinated polyvinyl chloride pipes for automatic water spraying fire extinguishing, which comprises the following steps:
(1) And (3) compounding: adding CPVC resin, a stabilizer, a lubricant, an impact modifier, a processing aid and an antioxidant into a high-low speed mixing unit for mixing, adding a colorant and a pigment when the temperature is 100-105 ℃, continuously stirring and heating to 115-125 ℃, putting the materials into a low-speed mixing machine, discharging when the temperature of the materials is cooled to below 40 ℃, and preparing into granules;
(2) Pipe extrusion molding: extruding the granules into a pipe on a double-screw extruder, wherein the temperature of the extruder is 170-200 ℃, and cooling, cutting, expanding and packaging the pipe to obtain a finished pipe product.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for preparing chlorinated polyvinyl chloride pipes for automatic water spraying and fire extinguishing, which adopts the compound use of modified cage-type polysilsesquioxane microspheres as auxiliary stabilizers and organic tin stabilizers, and can endow the pipes with excellent processing stability and mechanical strength; polyvinylidene chloride is adopted as a processing aid, so that the processing performance can be improved, and meanwhile, the impact resistance of the pipe is improved by increasing the addition amount of a toughening agent in a proper amount under the condition of keeping the chlorine content of the pipe.
Detailed Description
The invention will now be further illustrated with reference to specific examples, but the invention is not limited thereto. The parts used in the examples are parts by weight unless otherwise specified.
Example 1
Preparing an auxiliary stabilizer:
(1) Adding 500g of octakis (aminophenyltrioxasilane) microspheres with the particle size of 100 nanometers into a high-speed mixer, adding 20g of n-heptane solution of acetone thiosemicarbazone with the mass concentration of 10%, heating to 95 ℃, stirring for 20 minutes to fully volatilize the n-heptane solvent, cooling to 45 ℃, and discharging.
(2) And (2) adding 20g of the treated polysilsesquioxane microspheres into a beaker, adding 0.01g of polyvinyl alcohol dispersing agent with alcoholysis degree of 80% and 50g of deionized water, stirring, adjusting the pH value to 8.5 by using sodium hydroxide, continuously stirring for 20 minutes, performing centrifugal dehydration, and drying to obtain the auxiliary stabilizer.
Preparing a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing:
(1) And (3) compounding: 100 parts of CPVC resin with a chlorine content of 68 percent; 1 part of organotin stabilizer TM-181FS; 0.5 part of auxiliary stabilizer; impact modifier MBS B-564 8 parts; 1.8 parts of polyvinylidene chloride resin; 0.5 part of microcrystalline wax; 0.8 part of polyethylene wax; 0.7 part of oxidized polyethylene wax; adding 0.3 part of antioxidant HostanoxP-EPQ into a high-low speed mixing unit, mixing to 105 ℃, adding 1.2 parts of titanium dioxide R-902, 0.0025 part of permanent orange and 0.0025 part of fast scarlet, continuously stirring and heating to 120 ℃, putting the materials into a low-speed mixer, discharging when the temperature of the materials is cooled to 40 ℃, and preparing into granules;
(2) Pipe extrusion molding: the extrusion adopts KMD-60KK type double screw extruder of Claus Ma Fei extrusion technology Limited company, and the granules are extruded out of the pipe on the double screw extruder, wherein the temperature of the extruder is as follows: 170 ℃ in the first zone, 180 ℃ in the second zone, 190 ℃ in the third zone, 200 ℃ in the fourth zone, 195 ℃ in the head, feeding speed: 10 r.min -1 And the rotating speed of the extruder: 26 r.min -1 And the traction speed is as follows: 2.6 m.min -1 The pipe is cooled, cut, expanded and packaged to obtain the chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing.
Example 2
Preparing an auxiliary stabilizer:
(1) Adding 500g of octakis (aminophenyltrioxasilane) microspheres with the particle size of 150 nanometers into a high-speed mixer, adding 17g of n-heptane solution of acetone thiosemicarbazone with the mass concentration of 10%, heating to 95 ℃, stirring for 20 minutes to fully volatilize the n-heptane solvent, cooling to 45 ℃, and discharging.
(2) And (2) adding 20g of the treated polysilsesquioxane microspheres into a beaker, adding 0.01g of polyvinyl alcohol dispersing agent with alcoholysis degree of 80% and 50g of deionized water, stirring, adjusting the pH value to 8.0 by using sodium hydroxide, continuously stirring for 20 minutes, performing centrifugal dehydration, and drying to obtain the auxiliary stabilizer.
Preparing a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing:
(1) And (3) compounding: 100 parts of CPVC resin with the chlorine content of 67.5 percent; 1 part of organotin stabilizer TM-181FS; 0.3 part of auxiliary stabilizer; impact modifier MBS B-564 7 parts; 1.5 parts of polyvinylidene chloride resin; 0.5 part of calcium stearate; 0.6 part of polyethylene wax; 0.4 part of oxidized polyethylene wax; 0.5 part of antioxidant HostanoxP-EPQ is added into a high-low speed mixing unit to be mixed to 105 ℃, 1.1 parts of titanium dioxide R-902, 0.005 part of permanent orange and 0.005 part of fast red are added, and the mixture is continuously stirred and heated to 120 ℃. Putting the materials into a low-speed mixer, discharging when the temperature of the materials is cooled to 40 ℃, and preparing into granules;
(2) Pipe extrusion molding: the extrusion adopts KMD-60KK type double screw extruder of Claus Ma Fei extrusion technology Limited company, and the granules are extruded out of the pipe on the double screw extruder, wherein the temperature of the extruder is as follows: 170 ℃ in the first zone, 180 ℃ in the second zone, 190 ℃ in the third zone, 200 ℃ in the fourth zone, 195 ℃ in the head, feeding speed: 8 r.min -1 And the rotating speed of the extruder: 24 r.min -1 And the traction speed is as follows: 2.5 m.min -1 The pipe is cooled, cut, expanded and packaged to obtain the chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing.
Example 3
Preparing an auxiliary stabilizer:
(1) Adding 500g of octa (aminophenyltrioxasilane) microspheres with the particle size of 200 nanometers into a high-speed mixer, adding 15g of n-heptane solution of acetone thiosemicarbazone with the mass concentration of 10%, heating to 95 ℃, and stirring for 20 minutes to fully volatilize the n-heptane solvent. Cooling to 45 deg.C, and discharging.
(2) And (2) adding 20g of the treated polysilsesquioxane microspheres into a beaker, adding 0.01g of polyvinyl alcohol dispersing agent with alcoholysis degree of 80% and 50g of deionized water, stirring, adjusting the pH value to 8.2 by using sodium hydroxide, continuously stirring for 20 minutes, performing centrifugal dehydration, and drying to obtain the auxiliary stabilizer.
Preparing a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing:
(1) Compounding: 100 parts of CPVC resin with the chlorine content of 67.8 percent; 1 part of organotin stabilizer TM-181FS; 0.4 part of auxiliary stabilizer; impact modifier MBS B-564.5 parts; 1.6 parts of polyvinylidene chloride resin; 0.5 part of microcrystalline wax; 0.3 part of EBS; 0.6 part of polyethylene wax; 0.5 part of oxidized polyethylene wax; 0.5 part of antioxidant HostanoxP-EPQ is added into a high-low speed mixing unit to be mixed to 105 ℃, 1.1 parts of titanium dioxide R-902, 0.0025 part of permanent orange yellow and 0.0025 part of fast red are added, and the mixture is continuously stirred and heated to 120 ℃. Putting the materials into a low-speed mixer, discharging when the temperature of the materials is cooled to 40 ℃, and preparing into granules;
(2) Pipe extrusion molding: the extrusion adopts KMD-60KK type double screw extruder of Claus Ma Fei extrusion technology Limited company, and the granules are extruded out of the pipe on the double screw extruder, wherein the temperature of the extruder is as follows: 170 ℃ in the first zone, 180 ℃ in the second zone, 190 ℃ in the third zone, 200 ℃ in the fourth zone, 195 ℃ in the head, feeding speed: 12 r.min -1 The rotating speed of the extruder: 28 r.min -1 And the traction speed is as follows: 2.7 m.min -1 The pipe is cooled, cut, expanded and packaged to obtain the chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing.
Comparative example 1
Preparing a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing:
(1) And (3) compounding: 100 parts of CPVC resin with a chlorine content of 68 percent; 1.5 parts of an organic tin stabilizer TM-181FS; impact modifier MBS B-564 8 parts; 1.8 parts of polyvinylidene chloride resin; 0.5 part of microcrystalline wax; 0.8 part of polyethylene wax; 0.7 part of oxidized polyethylene wax; 0.5 part of antioxidant HostanoxP-EPQ is added into a high-low speed mixing unit to be mixed to 105 ℃, 1.2 parts of titanium dioxide R-902, 0.0025 part of permanent orange yellow and 0.0025 part of fast red are added, and the mixture is continuously stirred and heated to 120 ℃. And (3) putting the materials into a low-speed mixer, and discharging when the temperature of the materials is cooled to 40 ℃.
(2) Pipe extrusion molding: same as in example 1.
Comparative example 2
Preparing a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing:
(1) And (3) compounding: 100 parts of CPVC resin with a chlorine content of 68 percent; 1 part of organotin stabilizer TM-181FS; 0.5 part of hydrotalcite stabilizer; impact modifier MBS B-564 8 parts; 1.8 parts of polyvinylidene chloride resin; 0.5 part of microcrystalline wax; 0.8 part of polyethylene wax; 0.7 part of oxidized polyethylene wax; 0.5 part of antioxidant HostanoxP-EPQ is added into a high-low speed mixing unit to be mixed to 105 ℃, 1.2 parts of titanium dioxide R-902, 0.0025 part of permanent orange yellow and 0.0025 part of fast red are added, and the mixture is continuously stirred and heated to 120 ℃. And (3) putting the materials into a low-speed mixer, and discharging when the temperature of the materials is cooled to 40 ℃.
(2) Pipe extrusion molding: same as in example 1.
Comparative example 3
Preparing a chlorinated polyvinyl chloride pipe for automatic water spraying and fire extinguishing:
(1) And (3) compounding: 100 parts of CPVC resin with the chlorine content of 68 percent; 1 part of organotin stabilizer TM-181FS; 0.5 part of auxiliary stabilizer; impact modifier MBS B-564 8 parts; 1.8 parts of ACR401 processing aid; 0.5 part of microcrystalline wax; 0.8 part of polyethylene wax; 0.7 part of oxidized polyethylene wax; 0.5 part of antioxidant HostanoxP-EPQ is added into a high-low speed mixing unit to be mixed to 105 ℃, 1.2 parts of titanium dioxide R-902, 0.0025 part of permanent orange and 0.0025 part of fast scarlet are added, and the mixture is continuously stirred and heated to 120 ℃. And (3) putting the materials into a low-speed mixer, and discharging when the temperature of the materials is cooled to 40 ℃.
(2) Pipe extrusion molding: same as in example 1.
The pipes prepared in examples 1 to 3 and comparative examples 1 to 3 were subjected to a performance test as follows:
(1) The stabilizing time is as follows: the stability performance was tested by Brabender under the following conditions: temperature: 180 ℃, rotation speed: 60 r.min -1 And the feeding amount is as follows: 55g.
(2) Vicat softening temperature: testing according to the requirements of GB/T8802-2001, namely determination of Vicat softening temperature of thermoplastic plastic pipes and pipe fittingsThe temperature and speed is 50 ℃ h -1 And a load of 50N is applied.
(3) Tensile strength: testing according to the requirements of GB/T1040-2008.
(4) Chlorine content: testing according to the requirements of GB/T7139-2002.
The results of the performance tests are shown in Table 1.
TABLE 1 results of testing the properties of the pipes prepared in examples 1 to 3 and comparative examples 1 to 3
| Detecting items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Stabilization time, min | 14.5 | 15.3 | 14.9 | 12.8 | 11.6 | 14.3 |
| Vicat softening temperature,. Degree.C | 115 | 113 | 114 | 111 | 112 | 114 |
| Tensile strength, MPa | 55.6 | 56.4 | 55.7 | 49.3 | 50.8 | 53.4 |
| Chlorine content (mass)% | 60.2 | 60.7 | 60.5 | 60.2 | 60.2 | 59.1 |
As can be seen from Table 1, the stabilizer of organotin TM-181FS is completely adopted in the comparative example 1, the rest components are the same as those in the example 1, and the stability time, the Vicat softening temperature and the tensile strength of the prepared pipe are lower than those in the example 1; comparative example 2 adopts organotin and hydrotalcite composite as the stabilizer, other components are the same as those in example 1, and the stability time and tensile strength on performance are greatly reduced; comparative example 3 adopts the processing aid ACR401 commonly used in PVC, and as a result, the chlorine content can not meet the requirement of national standard on the pipe. The stability time of the CPVC pipe compound for automatic water spraying extinguishment is temporarily not related to the standard, and when a conical double-screw extruder is generally adopted for production, the stability time is longer than 12min so as to be smoothly extruded, but the stability time is not desirable to be prolonged by adopting a method of increasing the using amount of a stabilizer. The dosage of the stabilizer is increased, and the dosage of the impact modifier, the lubricant and other auxiliary agents is inevitably reduced to meet the requirement that the chlorine content of the pipe is more than or equal to 60 percent, which can influence the comprehensive performance of the pipe.
In addition, the DN32 pipes prepared in the embodiments 1-3 are subjected to related performance detection according to GB/T5135.19-2010, and the detection results are shown in Table 2.
Table 2 results of testing the properties of the pipes prepared in examples 1-3
| Detecting items | Technical index | Example 1 | Example 2 | Example 3 |
| Density, kg m -3 | 1 450～1 650 | 1 506 | 1 533 | 1 524 |
| Longitudinal shrinkage | ≤6％ | 3.0 | 3.1 | 3.0 |
| Drop hammer impact test (0 ℃ C.) | Without cracking or damaging | Qualified | Qualified | Qualified |
| Hydraulic strength of pipeline | Without cracking or damaging | Qualified | Qualified | Qualified |
| Bending resistance | No permanent bending | Qualified | Qualified | Qualified |
Claims (10)
1. The utility model provides an automatic chlorinated polyvinyl chloride tubular product for water spray fire extinguishing which characterized in that: the composite material is prepared from the following raw materials in parts by weight:
wherein the composite stabilizer is formed by compounding an organic tin stabilizer and an auxiliary stabilizer, and the auxiliary stabilizer is an acetone amidothiourea modified octa (aminophenyltrioxasilane) microsphere; the processing aid is polyvinylidene chloride.
2. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 1, wherein: the composite stabilizer is formed by compounding an organic tin stabilizer and an auxiliary stabilizer according to the mass ratio of 10-5.
3. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 2, wherein: the organic tin stabilizer is methyl tin mercaptide.
4. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 1, wherein: the preparation method of the auxiliary stabilizer comprises the following steps:
adding octa (aminophenyltrioxasilane) microspheres into an n-heptane solution of acetone thiosemicarbazone, stirring in a high-speed mixer to fully volatilize the n-heptane solvent, adding a polyvinyl alcohol dispersant and deionized water, stirring, adjusting the pH value to 8.0-8.5, centrifugally dewatering, and drying to obtain the auxiliary stabilizer.
5. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 1, wherein: the CPVC resin is prepared by performing chlorination modification on a suspension-method polyvinyl chloride resin, the average polymerization degree of the PVC resin is 1000, and the mass fraction of chlorine element in the prepared CPVC resin is 67.5-68%.
6. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 5, wherein: the impact modifier is one or more than two of acrylate copolymer, methyl methacrylate-butadiene-styrene ternary graft copolymer, chlorinated polyethylene, nitrile rubber and ethylene-ethyl acetate copolymer which are mixed in any proportion.
7. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 1, wherein: the lubricant is two or more of polyethylene wax, microcrystalline wax, oxidized polyethylene wax, stearic acid, stearate and amide compounds.
8. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 1, wherein: the antioxidant is organic phosphorus antioxidant tetrakis (2,4-di-tert-butylphenyl-4,4' biphenyl) diphosphonite.
9. The chlorinated polyvinyl chloride pipe for automatic sprinkler fire extinguishing according to claim 1, wherein: the colorant is rutile titanium dioxide;
the pigment is a mixture of permanent orange yellow and fast scarlet with a mass ratio of 1:1.
10. A method for preparing chlorinated polyvinyl chloride pipes for automatic sprinkler extinguishment according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
(1) Compounding: adding CPVC resin, a stabilizer, a lubricant, an impact modifier, a processing aid and an antioxidant into a high-low speed mixing unit for mixing, adding a colorant and a pigment when the temperature is 100-105 ℃, continuously stirring and heating to 115-125 ℃, putting the materials into a low-speed mixing machine, discharging when the temperature of the materials is cooled to below 40 ℃, and preparing into granules;
(2) Pipe extrusion molding: extruding the granules into a pipe on a double-screw extruder, wherein the temperature of the extruder is 170-200 ℃, and cooling, cutting, expanding and packaging the pipe to obtain a finished pipe product.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116535790A (en) * | 2023-04-23 | 2023-08-04 | 苏州翠屏塑胶有限公司 | Modified CPVC pipe and preparation method thereof |
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