CN115322737A - Two-component silicone structural sealant and preparation system and preparation method thereof - Google Patents
Two-component silicone structural sealant and preparation system and preparation method thereof Download PDFInfo
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- CN115322737A CN115322737A CN202211004276.8A CN202211004276A CN115322737A CN 115322737 A CN115322737 A CN 115322737A CN 202211004276 A CN202211004276 A CN 202211004276A CN 115322737 A CN115322737 A CN 115322737A
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- 239000000565 sealant Substances 0.000 title claims abstract description 66
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims description 25
- 239000002994 raw material Substances 0.000 claims abstract description 106
- 239000000463 material Substances 0.000 claims abstract description 79
- 239000000945 filler Substances 0.000 claims abstract description 56
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 53
- -1 polysiloxane Polymers 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 229920002545 silicone oil Polymers 0.000 claims abstract description 29
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 26
- 239000004014 plasticizer Substances 0.000 claims abstract description 25
- 150000001875 compounds Chemical class 0.000 claims abstract description 23
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 54
- 238000002156 mixing Methods 0.000 claims description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- 238000011049 filling Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 20
- 239000003431 cross linking reagent Substances 0.000 claims description 16
- 229910000077 silane Inorganic materials 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 14
- 229910021485 fumed silica Inorganic materials 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 8
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 8
- 239000002318 adhesion promoter Substances 0.000 claims description 8
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 8
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 8
- 125000005442 diisocyanate group Chemical group 0.000 claims description 8
- 239000003085 diluting agent Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- ZQZCOBSUOFHDEE-UHFFFAOYSA-N tetrapropyl silicate Chemical compound CCCO[Si](OCCC)(OCCC)OCCC ZQZCOBSUOFHDEE-UHFFFAOYSA-N 0.000 claims description 8
- NEPKLUNSRVEBIX-UHFFFAOYSA-N bis(oxiran-2-ylmethyl) benzene-1,4-dicarboxylate Chemical compound C=1C=C(C(=O)OCC2OC2)C=CC=1C(=O)OCC1CO1 NEPKLUNSRVEBIX-UHFFFAOYSA-N 0.000 claims description 7
- 229910000281 calcium bentonite Inorganic materials 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 7
- BQQUFAMSJAKLNB-UHFFFAOYSA-N dicyclopentadiene diepoxide Chemical compound C12C(C3OC33)CC3C2CC2C1O2 BQQUFAMSJAKLNB-UHFFFAOYSA-N 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 229960004063 propylene glycol Drugs 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- PMDHMYFSRFZGIO-UHFFFAOYSA-N 1,4,7-trioxacyclotridecane-8,13-dione Chemical compound O=C1CCCCC(=O)OCCOCCO1 PMDHMYFSRFZGIO-UHFFFAOYSA-N 0.000 claims description 2
- AXTGDCSMTYGJND-UHFFFAOYSA-N 1-dodecylazepan-2-one Chemical compound CCCCCCCCCCCCN1CCCCCC1=O AXTGDCSMTYGJND-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 229940106012 diethylene glycol adipate Drugs 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 229960003639 laurocapram Drugs 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims 2
- MEBJLVMIIRFIJS-UHFFFAOYSA-N hexanedioic acid;propane-1,2-diol Chemical compound CC(O)CO.OC(=O)CCCCC(O)=O MEBJLVMIIRFIJS-UHFFFAOYSA-N 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 2,3-dimethylbutane Chemical group CC(C)C(C)C ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 5
- VMPHSYLJUKZBJJ-UHFFFAOYSA-N lauric acid triglyceride Natural products CCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCC)COC(=O)CCCCCCCCCCC VMPHSYLJUKZBJJ-UHFFFAOYSA-N 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004590 silicone sealant Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 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 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- QSJXEFYPDANLFS-UHFFFAOYSA-N Diacetyl Chemical group CC(=O)C(C)=O QSJXEFYPDANLFS-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- POODVSCQKVCWCE-UHFFFAOYSA-N butanedioic acid;propane-1,2-diol Chemical compound CC(O)CO.OC(=O)CCC(O)=O POODVSCQKVCWCE-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920001558 organosilicon polymer Polymers 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/54—Means for supporting containers or receptacles during the filling operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
- B65B57/06—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to control, or to stop, the feed of articles or material to be packaged
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3081—Aluminum sulfate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a two-component silicone structural sealant which comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight: 85-95 parts of component A base material, 10-15 parts of nano calcium carbonate and 5-10 parts of dimethyl silicone oil; wherein the component A base material is prepared from the following raw materials in parts by weight: 75-80 parts of alpha, omega-dihydroxy polysiloxane, 5-10 parts of high-temperature antioxidant, 5-10 parts of high-temperature resistant agent, 5-10 parts of tackifier and 5-10 parts of silane coupling agent; the component B is prepared from the following raw materials in parts by weight: the component B comprises 80-85 parts of base material, 5-8 parts of compound curing agent and 10-15 parts of filler II; wherein the component B base material is prepared from the following raw materials in parts by weight: 88-92 parts of premixed raw materials, 1-5 parts of plasticizer and 5-8 parts of filler. The invention overcomes the defects of the prior art, has reasonable design, obviously improves the comprehensive performance of the two-component silicone structural sealant, and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of sealants, in particular to a two-component silicone structural sealant, and a preparation system and a preparation method thereof.
Background
The two-component silicone structural sealant is a sealant with excellent adhesive property, good elasticity, weathering aging resistance, ultraviolet resistance, ozone resistance, water resistance and the like. The two-component silicone structural sealant also has outstanding mechanical properties such as high strength, high extensibility and the like, bears elastic bonding taking the structural strength as a main function in structural assembly, and plays a role in structural bonding. The two-component silicone structural sealant generally comprises two components A and B, and when the sealant is used, the two components are uniformly mixed firstly, and then the sealant is injected into a sealant using part within a certain time. The curing speed of the two-component silicone structural sealant can be adjusted within a certain range, so that a satisfactory curing effect is achieved. The two-component silicone structural sealant has the advantages of high curing speed and high construction efficiency, and is widely applied to glass curtain wall structural bonding, such as bonding of glass and an aluminum frame in a hidden frame glass curtain wall, bonding of glass plates and glass ribs in a full glass curtain wall, secondary bonding sealing of hollow glass and the like. However, the traditional two-component silicone structural sealant needs a certain curing time to form enough bonding force, for example, the formation of effective bonding in the using process usually needs 12 to 72 hours, and even needs a longer time under the condition of some substrates or low temperature.
After the existing double-component silicone sealant is used for a long time and is illuminated, photochemical reaction can occur inside the sealant, so that the sealant is aged, the sealant is normally used, the corrosion resistance of the existing sealant is general, and the use environment of the sealant is harsh.
Organosilicon macromolecules are polymers containing silicon as an element in a molecular structure and organic groups connected to silicon atoms, and are generally classified into four types: silicone oil, silicone resin, silicone rubber, a silane coupling agent, je. The silicone sealant is one of silicone rubbers. The organic silicon sealant is prepared by adding components such as a filling agent, a reinforcing agent, a coupling agent, a catalyst and the like into an organic silicon polymer. The main chain is composed of silicon-oxygen bonds, and the side chains are combined with different organic groups through silicon atoms to form a series of products. It has many unique properties, such as high and low temp. resistance, weather resistance, ageing resistance, ozone resistance, water repellency, fire-retardant property, non-toxic property, physiological inertia, excellent electric insulating property and outstanding surface activity. These properties are incomparable and replaceable with other organic polymer materials, so that the organic polymer materials are widely applied to the aspects of aerospace, electronics, electrics, chemical industry, machinery, construction, transportation, medical treatment, health, agriculture, daily life of people and the like, and become important emerging materials in national economy.
The silicone material also has a number of weaknesses, such as low strength, aging susceptibility, etc., which limit its use. With the rapid development of modern industry in China, particularly aerospace industry, the requirements on the performance of materials are more and more strict. At present, the situation of safe production in China is more and more serious, and the safety requirement on materials is continuously improved. The organic silicon sealant is modified, the comprehensive performance of the organic silicon sealant is continuously improved, and particularly, the flame retardant performance of the organic silicon sealant is improved by adding a curing agent and an antioxidant, so that the organic silicon sealant has important significance and wide market prospect.
Therefore, the inventor aims to provide a two-component silicone structural sealant, a preparation system and a preparation method thereof, which aim to achieve the purpose of higher practical value, by taking the experience of abundant design development and actual manufacturing of the related industry for years and researching and improving the existing structure and deficiency.
Disclosure of Invention
In order to solve the problems mentioned in the background technology, the invention provides a two-component silicone structural sealant, a preparation system and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
85-95 parts of component A base material, 10-15 parts of nano calcium carbonate and 5-10 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
75-80 parts of alpha, omega-dihydroxy polysiloxane, 5-10 parts of high-temperature antioxidant, 5-10 parts of high-temperature resistant agent, 5-10 parts of tackifier and 5-10 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
the component B comprises 80-85 parts of base material, 5-8 parts of compound curing agent and 10-15 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
88-92 parts of premixed raw material, 1-5 parts of plasticizer and 5-8 parts of filler I;
the premixed raw materials are prepared from the following raw materials in parts by weight:
40-45 parts of alkoxy silane cross-linking agent, 25-35 parts of diethyl ethyl acetoacetate diisopropyl titanate, 7-9 parts of dibutyl tin dilaurate, 5-7 parts of laurocapram organic tin, 10-20 parts of diluent, 15-20 parts of diisocyanate, 1-5 parts of viscosity reduction resin, 0-3-0.5 part of polyamide wax and 1-3 parts of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.1-1.3 for use.
Preferably, the compound curing agent is prepared by compounding the following raw materials in parts by weight:
50-55 parts of gypsum, 15-20 parts of aluminum sulfate, 20-25 parts of calcium bentonite, 8-12 parts of a water reducing agent, 5-10 parts of diglycidyl terephthalate and 3-5 parts of dicyclopentadiene dioxide.
Preferably, the filler I is one or more selected from quartz powder, talcum powder, heavy calcium carbonate, diatomite, montmorillonite, light calcium carbonate, precipitated white carbon black and nano active calcium carbonate.
Preferably, the second filler is one or more selected from fumed silica, precipitated silica and carbon black.
Preferably, the alkoxy silane cross-linking agent is a mixture of ethyl orthosilicate, propyl orthosilicate and polymethyltriethoxysilane.
Preferably, the plasticizer is one or more of bis (2-ethylhexyl) phthalate, poly 1, 2-propylene adipate (PPA), poly 1, 2-propylene succinate (PPB), poly diethylene glycol adipate (PDEGA), vinyl silicone oil, hydrogen-containing silicone oil and white oil.
The preparation method of the two-component silicone structural sealant further comprises the following steps:
process for S1 and A components
1.2 preparing the base material of the component A according to the weight part, and putting the base material into a mixer for mixing;
1.2 starting up the machine to heat up, uniformly stirring the component A base material and the dimethyl silicone oil, adding the nano calcium carbonate for the first time, stirring for 20 minutes after adding, and stopping the machine;
1.3 adding the nano calcium carbonate for the second time, stirring for 30 minutes, stopping the machine, and shoveling the edges;
1.4 starting up the machine for stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature between 100 ℃ and 120 ℃ by adjusting heat conduction oil, keeping the vacuum degree between-0.07 Mpa and-0.09 Mpa, sampling and detecting the consistency and volatile matters after the total heat preservation and vacuum pumping time reaches 3 hours, discharging and packaging through a screw extruder after the consistency and volatile matters are qualified;
discharging, placing into an iron bucket, and covering to prevent pollution (detecting consistency, volatile matter and fineness);
1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
s2 and B component process
2.1 preparation of component B base stock
2.1.1, preparing the premixed raw materials according to the weight part, and putting the premixed raw materials into a mixer for mixing;
2.1.2 starting up the machine to heat up, uniformly stirring the premixed raw materials and the plasticizer, adding the filler I for the first time, stirring for 20 minutes after adding, and stopping the machine;
2.1.3 adding the first filler for the second time, stirring for 30 minutes, stopping the machine, and shoveling;
2.1.4 starting up and stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature between 100 ℃ and 120 ℃ by adjusting heat conduction oil, keeping the vacuum degree between-0.07 Mpa and-0.09 Mpa, sampling and detecting the consistency and the volatile matter after the total heat preservation and vacuum pumping time reaches 3 hours, discharging after the consistency and the volatile matter are qualified, putting into an iron bucket, and covering to prevent pollution (detect the consistency, the volatile matter and the fineness);
2.1.5 naturally cooling to below 50-60 ℃, grinding for 25-30 minutes, and carrying out the next procedure if the fineness is more than 50 micrometers; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
2.2 Preparation of component B
Pushing the prepared B component base material and the compound curing agent into a dispersion machine, stirring for 30 minutes, adding a second filler, putting down a machine cover, vacuumizing, defoaming with the vacuum degree of more than-0.08 MPa, and stirring for 60 minutes;
stopping the machine, introducing nitrogen to naturally cool to 25-30 ℃ after the consistency, the surface drying time and the fineness are detected to be qualified, and discharging and packaging through a screw extruder.
Discharging, if the material is thick, adding a proper amount of silicone oil, and if the material is thin, adding fumed silica to adjust. The stirring time can be properly prolonged when the fineness is unqualified.
A preparation system of two ingredient silicone structure sealants, includes A component mixing assembly, B component mixing assembly, dispenser and base, A component mixing assembly is formed by connecting gradually raw material storehouse of A component, raw material conveyer of A component, A component mixer, B component mixing assembly includes B component basic feed bin, B component basic material conveyer, B component mixer, other raw material storehouses of B component and other raw material conveyers of B component, and wherein B component basic feed bin, B component basic material conveyer and B component mixer connect gradually through the pipeline, and other raw material storehouses of B component, other raw material conveyers of B component and B component mixer connect gradually through the pipeline;
the dispersion machine is communicated with a screw extruder through a conveying pipeline, the output end of the screw extruder is connected with an extrusion pipeline, and one end of the extrusion pipeline is communicated with a filling machine shell.
Preferably, the inner wall of the filling machine shell is movably connected with a piston, the upper end of the piston is connected with a first air cylinder through a piston rod, and the first air cylinder is arranged at the top of the filling machine shell;
the bottom of filling machine casing is equipped with the feed opening, and the outer wall of feed opening has cup jointed movable sleeve, movable sleeve's inner wall annular part has a plurality of groups spacing slider, and spacing slider extends to the outer wall of feed opening, the outer wall of feed opening is equipped with the spacing spout that corresponds with spacing slider.
Preferably, one side of the outer wall of the movable sleeve is horizontally connected with a supporting rod, annular connecting pieces are sleeved on two sides of the supporting rod and located outside the movable sleeve, and a plurality of groups of reinforcing ribs are arranged between the annular connecting pieces and the movable sleeve.
Preferably, the upper end of bracing piece is connected with the second cylinder through the piston rod, and the second cylinder sets up in the upper end of fixed plate, and the fixed plate is fixed in the lateral wall of feed opening.
Preferably, a position of the movable sleeve, which is 3-5 cm away from the lower port, is provided with a limiting baffle, and the bottom of the limiting baffle is provided with a pressure sensor.
Preferably, a rotating groove of the base is internally provided with a rotating disc, the outer wall of the rotating disc is sleeved with a large gear, one side of the large gear is meshed with a small gear, and the inner wall of the small gear is connected with a motor through a rotating shaft.
Preferably, a plurality of groups of mounting clamping grooves are uniformly arranged on the upper end face of the rotary table in a surrounding manner along the edge, and filling cylinders are inserted into the mounting clamping grooves; the clamping block is connected in the groove on two sides of the inner wall of the mounting clamping groove in a rotating mode, and the spring is connected between the clamping block and the inner wall of the groove.
Compared with the prior art, the invention has the beneficial effects that:
1. by adding the compound curing agent, the comprehensive performance of the two-component silicone structure sealant can be improved, the curing and effective bonding time can be effectively shortened while the high strength, high ductility, good bonding performance and the like of the sealant are ensured, and the production efficiency of the two-component silicone structure sealant is improved;
2. the two-component silicone structure sealant provided by the invention has the advantages of simple preparation process, no special requirements on reaction conditions and short preparation time; through testing, the adhesive property, the curing property, the crack resistance and other properties of the sealant meet the requirements of relevant standards on the products;
3. according to the invention, by arranging the pressure sensor, the position of the filling cylinder can be accurately positioned, and the filling can be carried out quantitatively and in a fixed point manner, so that the problem of excessive or insufficient filling is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the process flow of the component A of the present invention;
FIG. 2 is a schematic view of the process flow of the B component base material of the present invention;
FIG. 3 is a schematic view of the process flow of component B of the present invention;
FIG. 4 is a schematic diagram of the system of the present invention;
FIG. 5 is a schematic view of the mounting structure of the filling machine housing and the turntable according to the present invention;
FIG. 6 is an enlarged view of the structure A of the present invention;
FIG. 7 is a schematic cross-sectional view of a structure B-B according to the present invention;
FIG. 8 is an enlarged view of the structure C of the present invention.
In the figure: the device comprises an A component mixing component 1, an A component raw material bin 101, an A component raw material conveyor 102, an A component mixer 103, a B component mixing component 2, a B component base material bin 201, a B component base material conveyor 202, a B component mixer 203, a B component other raw material bin 204, a B component other raw material conveyor 205, a dispersing machine 3, a screw extruder 4, an extrusion pipeline 5 and a filling machine shell 6;
the device comprises a first air cylinder 61, a piston 62, a feed opening 63, a movable sleeve 64, a limiting slide block 65, a limiting slide groove 66, a supporting rod 67, a fixing plate 68, a second air cylinder 69, an annular connecting piece 610, a reinforcing rib 611, a limiting baffle 612 and a pressure sensor 613;
the device comprises a base 7, a rotary table 8, a filling cylinder 81, an installation clamping groove 82, a clamping block 83, a groove 84, a spring 85, a large gear 9, a small gear 10 and a motor 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
The two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
85 parts of component A base stock, 10 parts of nano calcium carbonate and 5 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
75 parts of alpha, omega-dihydroxy polysiloxane, 5 parts of high-temperature antioxidant, 5 parts of high-temperature resistant agent, 5 parts of tackifier and 5 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
the component B comprises 80 parts of base stock, 5 parts of compound curing agent and 10 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
88 parts of premixed raw materials, 1 part of plasticizer and 5 parts of filler;
the premixed raw materials are prepared from the following raw materials in parts by weight:
40 parts of alkoxy silane cross-linking agent, 25 parts of diisopropyl diacetylacetate titanate, 7 parts of dibutyl tin dilaurate, 5 parts of organic laurin, 10 parts of diluent, 15 parts of diisocyanate, 1 part of viscosity-reducing resin, 0.3 part of polyamide wax and 1 part of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.1.
The compound curing agent is prepared by compounding the following raw materials in parts by weight:
50 parts of gypsum, 15 parts of aluminum sulfate, 20 parts of calcium bentonite, 8 parts of a water reducing agent, 5 parts of diglycidyl terephthalate and 3 parts of dicyclopentadiene dioxide.
The first filler is quartz powder.
And the second filler is fumed silica.
The alkoxy silane cross-linking agent is composed of ethyl orthosilicate, propyl orthosilicate and polymethyltriethoxysilane according to the mass ratio of 1.3:1.1:1.2 mixing the mixture.
The plasticizer is di (2-ethylhexyl) phthalate.
Example 2
The two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
90 parts of component A base stock, 12 parts of nano calcium carbonate and 7 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
77 parts of alpha, omega-dihydroxy polysiloxane, 7 parts of high-temperature antioxidant, 7 parts of high-temperature resistant agent, 7 parts of tackifier and 7 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
82 parts of component B base stock, 6 parts of compound curing agent and 12 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
90 parts of premixed raw materials, 3 parts of plasticizer and 6 parts of filler;
the premixed raw material is prepared from the following raw materials in parts by weight:
42 parts of alkoxy silane cross-linking agent, 30 parts of diisopropyl diacetylacetate titanate, 8 parts of dibutyl tin dilaurate, 6 parts of organic laurin, 15 parts of diluent, 17 parts of diisocyanate, 3 parts of viscosity-reducing resin, 0.4 part of polyamide wax and 2 parts of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.2.
The compound curing agent is prepared by compounding the following raw materials in parts by weight:
52 parts of gypsum, 17 parts of aluminum sulfate, 22 parts of calcium bentonite, 10 parts of a water reducing agent, 7 parts of diglycidyl terephthalate and 4 parts of dicyclopentadiene dioxide.
The first filler is heavy calcium carbonate and diatomite according to a mass ratio of 1:1 of the mixture.
The second filler is fumed silica and precipitated silica according to a mass ratio of 1:1 of the mixture.
The alkoxy silane cross-linking agent is composed of tetraethoxysilane, propyl orthosilicate and polymethyl triethoxysilane according to the mass ratio of 1.3:1.1:1.2 mixing the mixture.
The plasticizer is a combination of poly 1, 2-propylene glycol adipate (PPA) and poly 1, 2-propylene glycol succinate (PPB), and the poly 1, 2-propylene glycol adipate (PPA) and the poly 1, 2-propylene glycol succinate (PPB) are mixed according to a mass ratio of 1.
Example 3
The two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
95 parts of component A base stock, 15 parts of nano calcium carbonate and 10 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
80 parts of alpha, omega-dihydroxy polysiloxane, 10 parts of high-temperature antioxidant, 10 parts of high-temperature resistant agent, 10 parts of tackifier and 10 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
85 parts of component B base material, 8 parts of compound curing agent and 15 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
92 parts of premixed raw materials, 5 parts of plasticizer and 8 parts of filler;
the premixed raw materials are prepared from the following raw materials in parts by weight:
45 parts of alkoxy silane cross-linking agent, 35 parts of diisopropyl diacetylacetate titanate, 9 parts of dibutyl tin dilaurate, 7 parts of organic laurin, 20 parts of diluent, 20 parts of diisocyanate, 5 parts of viscosity-reducing resin, 0.5 part of polyamide wax and 3 parts of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.
The compound curing agent is prepared by compounding the following raw materials in parts by weight:
55 parts of gypsum, 20 parts of aluminum sulfate, 25 parts of calcium bentonite, 12 parts of a water reducing agent, 10 parts of diglycidyl terephthalate and 5 parts of dicyclopentadiene dioxide.
The filler I is precipitated white carbon black and nano active calcium carbonate according to a mass ratio of 1:1 of the mixture.
And the second filler is precipitated silica and carbon black according to a mass ratio of 1:1 of the mixture.
The alkoxy silane cross-linking agent is composed of ethyl orthosilicate, propyl orthosilicate and polymethyltriethoxysilane according to the mass ratio of 1.3:1.1:1.2 mixing.
The plasticizer is a combination of polydiethylene glycol adipate (PDEGA) and vinyl silicone oil, wherein the mass ratio of the polydiethylene glycol adipate (PDEGA) to the vinyl silicone oil is 1:1, mixing.
Example 4
This example differs from example 2 in that the first filler is ground calcium carbonate; the second filler is carbon black; the plasticizer is poly 1, 2-propylene glycol adipate (PPA).
Example 5
This example differs from example 2 in that the first filler is diatomaceous earth; the second filler is precipitated silica; the plasticizer is poly (1, 2-propylene glycol succinate) (PPB).
Example 6
The difference between the embodiment and the embodiment 2 is that the first filler is nano activated calcium carbonate; the second filler is a mixture of fumed silica and carbon black, and the mass ratio of the fumed silica to the carbon black is 1; the plasticizer is a mixture of vinyl silicone oil, hydrogen-containing silicone oil and white oil, and the mass ratio of the mixture of the vinyl silicone oil, the hydrogen-containing silicone oil and the white oil is 1.
Comparative example 1
The two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
85 parts of component A base stock, 10 parts of nano calcium carbonate and 5 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
75 parts of alpha, omega-dihydroxy polysiloxane, 5 parts of high-temperature resistant agent, 5 parts of tackifier and 5 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
the component B comprises 80 parts of base stock, 5 parts of compound curing agent and 10 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
88 parts of premixed raw materials, 1 part of plasticizer and 5 parts of filler;
the premixed raw materials are prepared from the following raw materials in parts by weight:
40 parts of alkoxy silane cross-linking agent, 25 parts of diisopropyl diacetyl acetate titanate, 7 parts of dibutyl tin dilaurate, 5 parts of lauryl organotin, 10 parts of diluent, 15 parts of diisocyanate, 1 part of viscosity-reducing resin, 0.3 part of polyamide wax and 1 part of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.1.
The compound curing agent is prepared by compounding the following raw materials in parts by weight:
50 parts of gypsum, 15 parts of aluminum sulfate, 20 parts of calcium bentonite, 8 parts of a water reducing agent, 5 parts of diglycidyl terephthalate and 3 parts of dicyclopentadiene dioxide.
The first filler is selected from quartz powder; the second filler is selected from fumed silica;
the alkoxy silane cross-linking agent is composed of tetraethoxysilane, propyl orthosilicate and polymethyl triethoxysilane according to the mass ratio of 1.3:1.1:1.2 mixing.
The plasticizer is di (2-ethylhexyl) phthalate.
Comparative example 2
The two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
85 parts of component A base material, 10 parts of nano calcium carbonate and 5 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
75 parts of alpha, omega-dihydroxy polysiloxane, 5 parts of high-temperature antioxidant, 5 parts of high-temperature resistant agent, 5 parts of tackifier and 5 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
the component B comprises 80 parts of base stock, 5 parts of curing agent aluminum sulfate and 10 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
88 parts of premixed raw materials, 1 part of plasticizer and 5 parts of filler;
the premixed raw material is prepared from the following raw materials in parts by weight:
40 parts of alkoxy silane cross-linking agent, 25 parts of diisopropyl diacetylacetate titanate, 7 parts of dibutyl tin dilaurate, 5 parts of organic laurin, 10 parts of diluent, 15 parts of diisocyanate, 1 part of viscosity-reducing resin, 0.3 part of polyamide wax and 1 part of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.
The first filler is selected from quartz powder; the second filler is selected from fumed silica;
the alkoxy silane cross-linking agent is composed of tetraethoxysilane, propyl orthosilicate and polymethyl triethoxysilane according to the mass ratio of 1.3:1.1:1.2 mixing the mixture.
The plasticizer is di (2-ethylhexyl) phthalate.
Comparative example 3
The two-component silicone structural sealant comprises a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight:
85 parts of component A base material, 10 parts of nano calcium carbonate and 5 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
75 parts of alpha, omega-dihydroxy polysiloxane, 5 parts of high-temperature antioxidant, 5 parts of high-temperature resistant agent, 5 parts of tackifier and 5 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
the component B comprises 80 parts of base stock, 5 parts of compound curing agent and 10 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
88 parts of premixed raw materials and 5 parts of filler;
the premixed raw materials are prepared from the following raw materials in parts by weight:
40 parts of alkoxy silane cross-linking agent, 25 parts of diisopropyl diacetylacetate titanate, 7 parts of dibutyl tin dilaurate, 5 parts of organic laurin, 10 parts of diluent, 15 parts of diisocyanate, 1 part of viscosity-reducing resin, 0.3 part of polyamide wax and 1 part of adhesion promoter; when in use, the component A and the component B are mixed according to the mass ratio of 1.1.
The compound curing agent is prepared by compounding the following raw materials in parts by weight:
50 parts of gypsum, 15 parts of aluminum sulfate, 20 parts of calcium bentonite, 8 parts of a water reducing agent, 5 parts of diglycidyl terephthalate and 3 parts of dicyclopentadiene dioxide.
The filler I is selected from quartz powder; the second filler is selected from fumed silica;
the alkoxy silane cross-linking agent is composed of ethyl orthosilicate, propyl orthosilicate and polymethyltriethoxysilane according to the mass ratio of 1.3:1.1:1.2 mixing the mixture.
And (3) experimental test:
the sealants prepared in examples 1 to 6 and comparative examples 1 to 3 were tested, wherein the adhesive strength, open time, tensile strength and elongation at break were tested according to national or industrial standards.
From the above examples and comparative examples it can be seen that: the two-component silicone structural sealant prepared in the embodiments 1-3 of the invention has the best comprehensive performance, the cohesiveness, the curing property and the crack resistance are greatly improved, and the internal stress can be reduced by adding the high-temperature antioxidant, the compound curing agent and the plasticizer, so that the cracking risk is reduced.
The inventor sets that no high-temperature antioxidant is added in the comparative example 1, no compound curing agent is added in the comparative example 2, and the performance of the sealant prepared by adding no plasticizer in the comparative example 3 is obviously poorer than that of the sealant prepared in the example 1, and the inventor also finds that the effect is best when the component A and the component B are mixed for use according to the mass ratio of 1.2.
Example 4
Referring to fig. 1-3, a method for preparing a two-component silicone structural sealant further comprises the following steps:
s1, A component process
1.3 preparing the base material of the component A according to the weight part, and putting the base material into a mixer for mixing;
1.2, starting up the machine to heat up, uniformly stirring the component A base material and the dimethyl silicone oil, then adding the nano calcium carbonate for the first time, stirring for 20 minutes after the addition is finished, and stopping the machine;
1.3, adding nano calcium carbonate for the second time, stirring for 30 minutes, stopping the machine, and shoveling the edge;
1.4 starting up the machine for stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature at 100 ℃ by adjusting heat conduction oil, keeping the vacuum degree at-0.07 Mpa, sampling and detecting the consistency and the volatile after the total heat preservation and vacuum pumping time reaches 3 hours, discharging and packaging through a screw extruder after the consistency and the volatile are qualified;
discharging, placing into an iron bucket, and covering to prevent pollution (detecting consistency, volatile matter and fineness);
1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
s2, B component technology
2.1 Preparation of B component base stock
2.1.1, preparing the premixed raw materials according to the weight part, and putting the premixed raw materials into a mixer for mixing;
2.1.2 starting up the machine to heat up, uniformly stirring the premixed raw materials and the plasticizer, adding the filler I for the first time, stirring for 20 minutes after adding, and stopping the machine;
2.1.3 adding the first filler for the second time, stirring for 30 minutes, stopping the machine, and shoveling the edges;
2.1.4 starting up the machine for stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature at 100 ℃ by adjusting heat conduction oil, keeping the vacuum degree at-0.07 Mpa, sampling and detecting the consistency and the volatile matter after the total heat preservation and vacuum pumping time reaches 3 hours, discharging after the consistency and the volatile matter are qualified, putting into an iron bucket, and covering to prevent pollution (detecting the consistency, the volatile matter and the fineness);
2.1.5 naturally cooling to below 50-60 ℃, grinding for 25-30 minutes, and carrying out the next procedure if the fineness is more than 50 micrometers; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
2.2 Preparation of component B
Pushing the prepared component B base material and the compound curing agent into a dispersion machine, stirring for 30 minutes, adding a filler II, putting down a machine cover, vacuumizing until the vacuum degree reaches more than-0.08 MPa, defoaming, and stirring for 60 minutes;
stopping the machine, introducing nitrogen to naturally cool to 25-30 ℃ after the consistency, the surface drying time and the fineness are detected to be qualified, and discharging and packaging through a screw extruder.
Discharging, if the material is thick, adding a proper amount of silicone oil, and if the material is thin, adding fumed silica to adjust. The stirring time can be properly prolonged when the fineness is unqualified.
Example 5
Referring to fig. 1-3, a method for preparing a two-component silicone structural sealant further comprises the following steps:
s1, A component process
1.4 preparing the base material of the component A according to the weight portion, and putting the base material into a mixer for mixing;
1.2 starting up the machine to heat up, uniformly stirring the component A base material and the dimethyl silicone oil, adding the nano calcium carbonate for the first time, stirring for 20 minutes after adding, and stopping the machine;
1.3, adding nano calcium carbonate for the second time, stirring for 30 minutes, stopping the machine, and shoveling the edge;
1.4 starting up a machine for stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature at 110 ℃ by adjusting heat conduction oil, keeping the vacuum degree at-0.08 Mpa, sampling and detecting the consistency and volatile matters after the total heat preservation and vacuum pumping time reaches 3 hours, and discharging and packaging through a screw extruder after the consistency and volatile matters are qualified;
discharging, putting into an iron bucket, and covering to prevent pollution (detecting consistency, volatile matter and fineness);
1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
s2 and B component process
2.1 Preparation of B component base stock
2.1.1 preparing the premixed raw materials according to the weight part, and putting the premixed raw materials into a mixer for mixing;
2.1.2 starting up the machine to heat up, uniformly stirring the premixed raw materials and the plasticizer, adding the filler I for the first time, stirring for 20 minutes after adding, and stopping the machine;
2.1.3 adding the first filler for the second time, stirring for 30 minutes, stopping the machine, and shoveling;
2.1.4 starting up to stir, starting timing when the material temperature reaches 100 ℃, controlling the temperature at 110 ℃ by adjusting heat conduction oil, keeping the vacuum degree at-0.08 Mpa, sampling and detecting the consistency and volatile matters after the total heat preservation and vacuum pumping time reaches 3 hours, discharging after the consistency and volatile matters are qualified, putting into an iron bucket, and covering to prevent pollution (detecting the consistency, volatile matters and fineness);
2.1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
2.2 Preparation of component B
Pushing the prepared component B base material and the compound curing agent into a dispersion machine, stirring for 30 minutes, adding a filler II, putting down a machine cover, vacuumizing until the vacuum degree reaches more than-0.08 MPa, defoaming, and stirring for 60 minutes;
stopping the machine, introducing nitrogen, naturally cooling to 25-30 ℃ after detecting that the consistency, the surface drying time and the fineness are qualified, and discharging and packaging through a screw extruder.
Discharging, if the material is thick, adding a proper amount of silicone oil, and if the material is thin, adding fumed silica to adjust. The stirring time can be properly prolonged when the fineness is unqualified.
Example 6
Referring to fig. 1-3, a method for preparing a two-component silicone structural sealant further comprises the following steps:
process for S1 and A components
1.5 preparing the component A base material according to the weight portion, and putting the base material into a mixer for mixing;
1.2, starting up the machine to heat up, uniformly stirring the component A base material and the dimethyl silicone oil, then adding the nano calcium carbonate for the first time, stirring for 20 minutes after the addition is finished, and stopping the machine;
1.3, adding nano calcium carbonate for the second time, stirring for 30 minutes, stopping the machine, and shoveling the edge;
1.4 starting up the machine for stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature to be 120 ℃ by adjusting heat conduction oil, keeping the vacuum degree at-0.09 Mpa, sampling and detecting the consistency and the volatile after the total heat preservation and vacuum pumping time reaches 3 hours, discharging and packaging through a screw extruder after the consistency and the volatile are qualified;
discharging, placing into an iron bucket, and covering to prevent pollution (detecting consistency, volatile matter and fineness);
1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
s2 and B component process
2.1 Preparation of B component base stock
2.1.1 preparing the premixed raw materials according to the weight part, and putting the premixed raw materials into a mixer for mixing;
2.1.2 starting up the machine to heat up, uniformly stirring the premixed raw materials and the plasticizer, adding the filler I for the first time, stirring for 20 minutes after adding, and stopping the machine;
2.1.3 adding the first filler for the second time, stirring for 30 minutes, stopping the machine, and shoveling;
2.1.4 starting up the machine for stirring, starting timing when the material temperature reaches 100 ℃, controlling the temperature at 120 ℃ by adjusting heat conduction oil, keeping the vacuum degree at-0.09 Mpa, sampling and detecting the consistency and the volatile matter after the total heat preservation and vacuum pumping time reaches 3 hours, discharging after the consistency and the volatile matter are qualified, putting into an iron bucket, and covering to prevent pollution (detecting the consistency, the volatile matter and the fineness);
2.1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
2.2 Preparation of component B
Pushing the prepared component B base material and the compound curing agent into a dispersion machine, stirring for 30 minutes, adding a filler II, putting down a machine cover, vacuumizing until the vacuum degree reaches more than-0.08 MPa, defoaming, and stirring for 60 minutes;
stopping the machine, introducing nitrogen to naturally cool to 25-30 ℃ after the consistency, the surface drying time and the fineness are detected to be qualified, and discharging and packaging through a screw extruder.
Discharging, if the material is thick, adding a proper amount of silicone oil, and if the material is thin, adding fumed silica to adjust. The stirring time can be properly prolonged when the fineness is unqualified.
Example 7
Referring to fig. 4-8, a system for preparing a two-component silicone structural sealant comprises an A-component mixing component 1, a B-component mixing component 2, a disperser 3 and a base 7, wherein the A-component mixing component 1 is formed by sequentially connecting an A-component raw material bin 101, an A-component raw material conveyor 102 and an A-component mixer 103, the A-component mixer 103 is connected with the disperser 3 through a pipeline A, and a valve A is arranged on a pipeline of the pipeline A;
the B component mixing component 2 comprises a B component base bin 201, a B component base material conveyor 202, a B component mixing machine 203, a B component other raw material bin 204 and a B component other raw material conveyor 205, wherein the B component base bin 201, the B component base material conveyor 202 and the B component mixing machine 203 are sequentially connected through pipelines, and the B component other raw material bin 204, the B component other raw material conveyor 205 and the B component mixing machine 203 are sequentially connected through pipelines; the component B mixing machine 203 is connected with the dispersion machine 3 through a pipeline B, and a valve B is arranged on a pipeline of the pipeline B;
the dispersion machine 3 is communicated with a screw extruder 4 through a conveying pipeline, the output end of the screw extruder 4 is connected with an extrusion pipeline 5, and one end of the extrusion pipeline 5 is communicated with a filling machine shell 6;
when the component A is produced, the valve B is closed, and the valve A is opened; when the component B is produced, the valve A is closed, and the valve B is opened; the production raw materials are fully mixed and dispersed by a dispersion machine 3, then are conveyed to a screw extruder 4, are extruded by the screw extruder 4 and are conveyed to a filling machine shell 6 through an extrusion pipeline 5; when the filling machine is in a non-running state, the piston 62 just seals the outlet of the extrusion pipeline 5, so that the colloid is prevented from flowing into the filling machine shell 6;
the inner wall of the filling machine shell 6 is movably connected with a piston 62, the upper end of the piston 62 is connected with a first air cylinder 61 through a piston rod, and the first air cylinder 61 is arranged at the top of the filling machine shell 6; the bottom of liquid filling machine casing 6 is equipped with feed opening 63, and the outer wall of feed opening 63 cup joints movable sleeve 64, and the inner wall annular part of movable sleeve 64 has a plurality of groups of spacing slider 65, and spacing slider 65 extends to the outer wall of feed opening 63, and the outer wall of feed opening 63 is equipped with the spacing spout 66 that corresponds with spacing slider 65.
A support rod 67 is horizontally connected to one side of the outer wall of the movable sleeve 64, annular connectors 610 are sleeved on two sides of the support rod 67 and located outside the movable sleeve 64, and a plurality of groups of reinforcing ribs 611 are arranged between the annular connectors 610 and the movable sleeve 64; the upper end of the support rod 67 is connected with a second cylinder 69 through a piston rod, the second cylinder 69 is arranged at the upper end of the fixed plate 68, and the fixed plate 68 is fixed on the side wall of the feed opening 63; a position 3-5 cm away from the lower port of the movable sleeve 64 is provided with a limit baffle 612, the bottom of the limit baffle 612 is provided with a pressure sensor 613, and the pressure sensor 613 is of a PX709GW model, so that the stability and the accuracy are high;
a rotating disc 8 is arranged in a rotating groove of the base 7, the outer wall of the rotating disc 8 is sleeved with a large gear 9, one side of the large gear 9 is meshed and connected with a small gear 10, and the inner wall of the small gear 10 is connected with a motor 11 through a rotating shaft;
the motor 11 drives the pinion 10 to rotate, and drives the turntable 8 and the filling cylinder 81 to rotate through the bull gear 9, so that the filling cylinder 81 rotates to a specified position, at this time, the second cylinder 69 is started, the second cylinder 69 drives the support rod 67 and the movable sleeve 64 to move downwards through the piston rod, at this time, the movable sleeve 64 moves downwards and is butted with an upper port of the filling cylinder 81, the pressure sensor 613 at the bottom of the limit baffle 612 is contacted with the upper port, meanwhile, the pressure sensor 613 transmits a signal to the controller, an execution command is sent to the first cylinder 61 through the controller, and the connection circuit is a common circuit connection relationship of common knowledge; the first cylinder 61 drives the piston 62 to move upwards and then downwards through the piston rod, and the colloid in the extrusion pipeline 5 is absorbed into the filling machine shell 6 due to certain negative pressure formed during the upward movement, and then is extruded downwards through the piston 62, so that the filling and packaging of the sealant are completed;
a plurality of groups of mounting clamping grooves 82 are uniformly arranged on the upper end face of the rotary table 8 along the edge in a surrounding manner, and filling cylinders 81 are inserted into the mounting clamping grooves 82; the clamping blocks 83 are rotatably connected in the grooves 84 on two sides of the inner wall of the mounting clamping groove 82, and the springs 85 are connected between the clamping blocks 83 and the inner wall of the grooves 84, so that the filling cylinder 81 can be effectively clamped, and stable filling of the filling cylinder 81 is kept.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the present invention, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (14)
1. The two-component silicone structural sealant comprises a component A and a component B, and is characterized in that the component A is prepared from the following raw materials in parts by weight:
85-95 parts of component A base material, 10-15 parts of nano calcium carbonate and 5-10 parts of dimethyl silicone oil;
wherein the component A base material is prepared from the following raw materials in parts by weight:
75-80 parts of alpha, omega-dihydroxy polysiloxane, 5-10 parts of high-temperature antioxidant, 5-10 parts of high-temperature resistant agent, 5-10 parts of tackifier and 5-10 parts of silane coupling agent;
the component B is prepared from the following raw materials in parts by weight:
the component B comprises 80-85 parts of base material, 5-8 parts of compound curing agent and 10-15 parts of filler II;
wherein the component B base material is prepared from the following raw materials in parts by weight:
88-92 parts of premixed raw material, 1-5 parts of plasticizer and 5-8 parts of filler I;
the premixed raw materials are prepared from the following raw materials in parts by weight:
40-45 parts of alkoxy silane cross-linking agent, 25-35 parts of diethyl ethyl acetate diisopropyl titanate, 7-9 parts of dibutyl tin dilaurate, 5-7 parts of laurocapram organic tin, 10-20 parts of diluent, 15-20 parts of diisocyanate, 1-5 parts of viscosity reduction resin, 0.3-0.5 part of polyamide wax and 1-3 parts of adhesion promoter;
when in use, the component A and the component B are mixed according to the mass ratio of 1.1-1.3 for use.
2. The two-component silicone structural sealant according to claim 1, wherein the compound curing agent is prepared by compounding the following raw materials in parts by weight:
50-55 parts of gypsum, 15-20 parts of aluminum sulfate, 20-25 parts of calcium bentonite, 8-12 parts of a water reducing agent, 5-10 parts of diglycidyl terephthalate and 3-5 parts of dicyclopentadiene dioxide.
3. The two-component silicone structural sealant of claim 1, wherein: the first filler is one or more selected from quartz powder, talcum powder, heavy calcium carbonate, diatomite, montmorillonite, light calcium carbonate, precipitated white carbon black and nano active calcium carbonate.
4. The two-component silicone structural sealant of claim 1, wherein: and the second filler is selected from one or more of fumed silica, precipitated silica and carbon black.
5. The two-component silicone structural sealant of claim 1, wherein: the alkoxy silane cross-linking agent is a mixture of tetraethoxysilane, propyl orthosilicate and polymethyltriethoxysilane.
6. The two-component silicone structural sealant of claim 1, wherein: the plasticizer is one or a combination of more of di (2-ethylhexyl) phthalate, 1, 2-propylene glycol adipate (PPA), 1, 2-propylene glycol polysuccinate (PPB), diethylene glycol adipate (PDEGA), vinyl silicone oil, hydrogen-containing silicone oil and white oil.
7. A method of preparing a two-component silicone structural sealant, the method of preparing a two-component silicone structural sealant as claimed in any one of claims 1 to 6, further comprising the steps of:
process for S1 and A components
Preparing the component A base material according to the weight part, and putting into a mixer for mixing;
1.2 starting up the machine to heat up, uniformly stirring the component A base material and the dimethyl silicone oil, adding the nano calcium carbonate for the first time, stirring for 20 minutes after adding, and stopping the machine;
1.3, adding nano calcium carbonate for the second time, stirring for 30 minutes, stopping the machine, and shoveling the edge;
1.4 starting up the machine for stirring, timing when the material temperature reaches 100 ℃, controlling the temperature between 100 ℃ and 120 ℃ by adjusting heat conduction oil, keeping the vacuum degree between-0.07 Mpa and-0.09 Mpa, sampling and detecting the consistency and the volatile after the total heat preservation and vacuum pumping time reaches 3 hours, discharging and packaging through a screw extruder after the consistency and the volatile are qualified;
discharging, placing into an iron bucket, and covering to prevent pollution (detecting consistency, volatile matter and fineness);
1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
s2 and B component process
2.1 Preparation of B component base stock
2.1.1, preparing the premixed raw materials according to the weight part, and putting the premixed raw materials into a mixer for mixing;
2.1.2 starting up the machine to heat up, uniformly stirring the premixed raw materials and the plasticizer, adding the filler I for the first time, stirring for 20 minutes after adding, and stopping the machine;
2.1.3 adding the first filler for the second time, stirring for 30 minutes, stopping the machine, and shoveling;
2.1.4 starting up to stir, starting timing when the material temperature reaches 100 ℃, controlling the temperature between 100 ℃ and 120 ℃ by adjusting heat conduction oil, keeping the vacuum degree between-0.07 Mpa and-0.09 Mpa, sampling and detecting the consistency and the volatile matter after the total heat preservation and vacuum pumping time reaches 3 hours, discharging after the consistency and the volatile matter are qualified, putting into an iron bucket, and covering to prevent pollution (detecting the consistency, the volatile matter and the fineness);
2.1.5 naturally cooling to below 50-60 deg.C, grinding for 25-30 min, and performing the next process if the fineness is more than 50 μm; homogenizing and grinding by a three-roller grinder until the fineness is lower than 50 microns and qualified;
2.2 Preparation of component B
Pushing the prepared component B base material and the compound curing agent into a dispersion machine, stirring for 30 minutes, adding a filler II, putting down a machine cover, vacuumizing until the vacuum degree reaches more than-0.08 MPa, defoaming, and stirring for 60 minutes;
stopping the machine, introducing nitrogen, naturally cooling to 25-30 ℃ after detecting that the consistency, the surface drying time and the fineness are qualified, and discharging and packaging through a screw extruder.
8. The utility model provides a two ingredient silicone structure sealant's preparation system, includes A component hybrid module (1), B component hybrid module (2), dispenser (3) and base (7), its characterized in that: the A component mixing component (1) is formed by sequentially connecting an A component raw material bin (101), an A component raw material conveyor (102) and an A component mixing machine (103), the B component mixing component (2) comprises a B component base material bin (201), a B component base material conveyor (202), a B component mixing machine (203), other B component raw material bins (204) and other B component raw material conveyors (205), wherein the B component base material bin (201), the B component base material conveyor (202) and the B component mixing machine (203) are sequentially connected through pipelines, and the other B component raw material bins (204), the other B component raw material conveyors (205) and the B component mixing machine (203) are sequentially connected through pipelines;
the dispersion machine (3) is communicated with a screw extruder (4) through a conveying pipeline, the output end of the screw extruder (4) is connected with an extrusion pipeline (5), and one end of the extrusion pipeline (5) is communicated with a filling machine shell (6).
9. The system for preparing a two-component silicone structural sealant according to claim 8, wherein: the inner wall of the filling machine shell (6) is movably connected with a piston (62), the upper end of the piston (62) is connected with a first air cylinder (61) through a piston rod, and the first air cylinder (61) is arranged at the top of the filling machine shell (6);
the bottom of liquid filling machine casing (6) is equipped with feed opening (63), and movable sleeve (64) have been cup jointed to the outer wall of feed opening (63), the inner wall annular part of movable sleeve (64) has a plurality of groups limiting slide block (65), and limiting slide block (65) extend to the outer wall of feed opening (63), the outer wall of feed opening (63) is equipped with limiting slide groove (66) that correspond with limiting slide block (65).
10. The system for preparing a two-component silicone structural sealant according to claim 9, wherein: one side of the outer wall of the movable sleeve (64) is horizontally connected with a supporting rod (67), annular connecting pieces (610) are sleeved on the two sides of the supporting rod (67) and located outside the movable sleeve (64), and a plurality of groups of reinforcing ribs (611) are arranged between the annular connecting pieces (610) and the movable sleeve (64).
11. The system for preparing a two-component silicone structural sealant according to claim 10, wherein: the upper end of bracing piece (67) is connected with second cylinder (69) through the piston rod, and second cylinder (69) set up in the upper end of fixed plate (68), and fixed plate (68) are fixed in the lateral wall of feed opening (63).
12. The system for preparing a two-component silicone structural sealant according to claim 8, wherein: a limiting baffle plate (612) is arranged at the position, 3-5 cm away from the lower port, of the movable sleeve (64), and a pressure sensor (613) is arranged at the bottom of the limiting baffle plate (612).
13. The system for preparing a two-component silicone structural sealant according to claim 8, wherein: the rotary table is characterized in that a rotary table (8) is arranged in a rotary groove of the base (7), a large gear (9) is sleeved on the outer wall of the rotary table (8), a small gear (10) is meshed and connected to one side of the large gear (9), and a motor (11) is connected to the inner wall of the small gear (10) through a rotary shaft.
14. The system for preparing a two-component silicone structural sealant according to claim 13, wherein: a plurality of groups of mounting clamping grooves (82) are uniformly arranged on the upper end surface of the rotary table (8) along the edge in a surrounding manner, and filling cylinders (81) are inserted into the mounting clamping grooves (82); the clamping blocks (83) are rotationally connected in grooves (84) in two sides of the inner wall of the mounting clamping groove (82), and springs (85) are connected between the clamping blocks (83) and the inner walls of the grooves (84).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205343511U (en) * | 2016-02-02 | 2016-06-29 | 佛山市金银河智能装备股份有限公司 | Continuous automatic production line of dual component electron liquid silicon rubber |
| CN109131974A (en) * | 2018-08-06 | 2019-01-04 | 安徽柳峰包装材料有限责任公司 | A kind of Portable paper product adhesive filling apparatus |
| CN109971416A (en) * | 2019-04-24 | 2019-07-05 | 陈果 | A kind of modified bi-component silicone sealant and preparation method thereof |
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2022
- 2022-08-12 CN CN202211004276.8A patent/CN115322737A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205343511U (en) * | 2016-02-02 | 2016-06-29 | 佛山市金银河智能装备股份有限公司 | Continuous automatic production line of dual component electron liquid silicon rubber |
| CN109131974A (en) * | 2018-08-06 | 2019-01-04 | 安徽柳峰包装材料有限责任公司 | A kind of Portable paper product adhesive filling apparatus |
| CN109971416A (en) * | 2019-04-24 | 2019-07-05 | 陈果 | A kind of modified bi-component silicone sealant and preparation method thereof |
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Application publication date: 20221111 |