CN102382579A - Acrylic ester structural adhesive having high intensity and high thixotropy and preparation method thereof - Google Patents
Acrylic ester structural adhesive having high intensity and high thixotropy and preparation method thereof Download PDFInfo
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- CN102382579A CN102382579A CN2011101675250A CN201110167525A CN102382579A CN 102382579 A CN102382579 A CN 102382579A CN 2011101675250 A CN2011101675250 A CN 2011101675250A CN 201110167525 A CN201110167525 A CN 201110167525A CN 102382579 A CN102382579 A CN 102382579A
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- 239000000853 adhesive Substances 0.000 title claims abstract description 32
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- -1 Acrylic ester Chemical class 0.000 title claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 42
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims abstract description 8
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- 239000003999 initiator Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 13
- 239000012467 final product Substances 0.000 claims description 12
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinyl group Chemical group C1(O)=CC(O)=CC=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 12
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 6
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 6
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011863 silicon-based powder Substances 0.000 claims description 6
- SKDGWNHUETZZCS-UHFFFAOYSA-N 2,3-ditert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(O)=C1C(C)(C)C SKDGWNHUETZZCS-UHFFFAOYSA-N 0.000 claims description 4
- 239000004258 Ethoxyquin Substances 0.000 claims description 4
- 229920013649 Paracril Polymers 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 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 4
- 229940093500 ethoxyquin Drugs 0.000 claims description 4
- 235000019285 ethoxyquin Nutrition 0.000 claims description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 4
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 claims description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- YQHLDYVWEZKEOX-UHFFFAOYSA-N cumene hydroperoxide Chemical compound OOC(C)(C)C1=CC=CC=C1 YQHLDYVWEZKEOX-UHFFFAOYSA-N 0.000 claims description 3
- DECIPOUIJURFOJ-UHFFFAOYSA-N ethoxyquin Chemical compound N1C(C)(C)C=C(C)C2=CC(OCC)=CC=C21 DECIPOUIJURFOJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920002681 hypalon Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- DSCFFEYYQKSRSV-UHFFFAOYSA-N 1L-O1-methyl-muco-inositol Natural products COC1C(O)C(O)C(O)C(O)C1O DSCFFEYYQKSRSV-UHFFFAOYSA-N 0.000 claims description 2
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 2
- OELQSSWXRGADDE-UHFFFAOYSA-N 2-methylprop-2-eneperoxoic acid Chemical compound CC(=C)C(=O)OO OELQSSWXRGADDE-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- FHLPGTXWCFQMIU-UHFFFAOYSA-N [4-[2-(4-prop-2-enoyloxyphenyl)propan-2-yl]phenyl] prop-2-enoate Chemical compound C=1C=C(OC(=O)C=C)C=CC=1C(C)(C)C1=CC=C(OC(=O)C=C)C=C1 FHLPGTXWCFQMIU-UHFFFAOYSA-N 0.000 claims description 2
- 229920000800 acrylic rubber Polymers 0.000 claims description 2
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 2
- 125000002524 organometallic group Chemical group 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 2
- 150000007970 thio esters Chemical class 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 abstract description 3
- 230000003078 antioxidant effect Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 239000012745 toughening agent Substances 0.000 abstract 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N Methyl ethyl ketone Natural products CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- MRIZMKJLUDDMHF-UHFFFAOYSA-N cumene;hydrogen peroxide Chemical class OO.CC(C)C1=CC=CC=C1 MRIZMKJLUDDMHF-UHFFFAOYSA-N 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The invention relates to an acrylic ester structural adhesive having high intensity and high thixotropy and a preparation method thereof. The preparation of the acrylic ester structural adhesive comprises preparation of a component A and a component B, and comprises the following specific steps of: putting an acrylic ester monomer, methacrylic acid, an elastomer, a toughening agent and a polymerization inhibitor into a stirring kettle, adding an accelerator and an activating accelerator, stirring continually, adding a filler, and stirring continually into a uniform body to obtain the component A; and putting an acrylic ester monomer, methacrylic acid, a toughening agent, a polymerization inhibitor, an antioxidant and a coupling agent into a stirring kettle, adding an initiator, stirring continually, adding a filler, and stirring continually into a uniform body to obtain the component B. After curing, the intensity of the two-component acrylic ester structural adhesive prepared with the method is 50 percent higher than that of the conventional two-component acrylic ester structural adhesive. Moreover, the acrylic ester structural adhesive has high thixotropy, and is particularly suitable for vertical surface adhesive application, so that workpiece pollution is avoided, and waste is reduced.
Description
Technical field
The present invention relates to a kind of acrylate structural adhesive and preparation method thereof, relate in particular to a kind of good acrylate structural adhesive of HS and thixotropy and preparation method thereof that has.
Background technology
Acrylate structural adhesive has ambient temperature curable and adjustable curing speed; Easy construction; Can bonding multiple base material, and bonding strength is high, is not needed the strict advantage of handling by gluing of surfaces; Therefore it has purposes widely in various industrial occasions, and what this paper told about emphatically is the application of acrylate structural adhesive aspect the railway track connection.Though acrylate structural adhesive is used for many years on railway track connects; But along with the train speed-raising; The increase day by day of traffic capacity, for the personnel safety that guarantees the passenger and the safe transport of goods, just work-ing life and the security to rail proposed higher, stricter requirement; That is to say the rail composite-joint is had higher requirement with glue, made detailed explanation to rail is on-the-spot with the sizing agent performance requriements among the standard TB/T 2975-2010 of the new promulgation of the Ministry of Railways.
Summary of the invention
The present invention is directed to the demand that at present performance of acrylate structural adhesive is proposed requirements at the higher level, a kind of good acrylate structural adhesive of HS and thixotropy and preparation method thereof that has is provided.
The technical scheme that the present invention solves the problems of the technologies described above is following: a kind of preparation method with the good acrylate structural adhesive of HS and thixotropy, and said acrylate structural adhesive comprises A component and B component, wherein, the weight ratio of A component and B component is 1: 1:
The preparation method of said A component comprises: with 40～60 parts by weight of acrylic ester monomer, and the methylacrylic acid of 10～20 weight parts, the elastomerics of 5～10 weight parts; The stopper of the toughner of 15～30 weight parts and 0.01～0.1 weight part drops in the stirring tank, and the speed with 300 rev/mins under 40～50 ℃ of conditions stirred 30 hours, made it to become even one; Add the promotor of 2～10 weight parts, the secondary accelerator of 0.5～1 weight part then; Continue to stir 1 hour, after mixing, add the filler of 5～10 weight parts; Continue to stir 1 hour, material gets final product after becoming homogeneous body;
The preparation method of said B component comprises: with 50～70 parts by weight of acrylic ester monomer, and the methylacrylic acid of 5～10 weight parts, the toughner of 15～30 weight parts; 0.01 the stopper of～0.1 weight part, the coupling agent of the oxidation inhibitor of 0.5～1.5 weight part and 0.5～2 weight part drop in the stirring tank, the speed with 300 rev/mins under 40～50 ℃ of conditions stirred 30 hours; Make it to become even one, add the initiator of 0.5～2 weight part then, continue to stir 0.5 hour; After mixing; The filler that adds 5～10 weight parts continues to stir 1 hour, and material gets final product after becoming homogeneous body.
On the basis of technique scheme, the present invention can also do following improvement.
Further, said acrylate monomer is one or more a mixture among TEB 3K, Jia Jibingxisuanyizhi, NSC 20956, methylacrylic acid hydroxyl ester, epoxy acrylate, urethane acrylate, ethoxyquin bisphenol a diacrylate and the trifunctional group acrylate.
Further, said elastomerics is one or more a mixture in paracril, chlorosulfonated polyethylene rubber, X 050, polybutadiene rubber, the acrylic elastomer.
Further, said toughner is one or more mixture in ABS resin, MBS resin, the SBS resin; Said stopper is Resorcinol, MEHQ, 2,6-toluene di-tert-butyl phenol and 2, one or more mixture in the 5-dimethyl-Resorcinol.
Further, said promotor is one or more mixture in Thiourea, amine, organometallics, the phosphorus compound; Said secondary accelerator is adjacent benzenesulfonimide.
Further, said initiator is one or more a mixture in isopropyl benzene hydroperoxide, Lucidol, the methylethyl ketone peroxide.
Further, said oxidation inhibitor is one or more mixture in Hinered phenols, amine, phosphorous acid esters, the thioesters class.
Further, said filler is one or more a mixture in lime carbonate, silicon powder, aerosil, talcum powder and the pure aluminium silicate.
Further, said coupling agent is that weight ratio is 4: 1 the γ-methacryloxypropyl trimethoxy silane and the mixture of vinyltrimethoxy silane.
The present invention also provides a kind of technical scheme that solves the problems of the technologies described above following: a kind of to have the good acrylate structural adhesive of HS and thixotropy be that 1: 1 A component and B component directly mixes under normal temperature condition and process by above-mentioned weight ratio; Curing reaction generating structure glue will take place in said A component and B component after 10～15 minutes; Tensile shear strength >=the 35MPa of said structure glue, stripping strength >=6kN/m floats.
The invention has the beneficial effects as follows: the production technique that the present invention adopted is simple, and energy consumption is low, and the prepared two-component acrylicester structure glue of the application of the invention compared with present technology; This product has suitable working life, can locate fast again simultaneously, and the conventional two-component acrylicester structure glue of its cured strength will exceed more than 50%; In addition, this product has good thixotropy, is particularly useful for the facade applying glue; Thereby avoided the pollution workpiece, also reduced waste.
Description of drawings
Fig. 1 has HS and good acrylate structural adhesive and the following 24 hours cure profile comparison diagrams of commercially available modification acrylate structure glue normal temperature condition of thixotropy for the present invention.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1
The preparation method of A component is: with 37 parts of TEB 3Ks, and 3 parts of epoxy acrylates, 10 parts of methylacrylic acids; 5 parts of paracrils, 15 parts of ABS resins, 0.01 part of Resorcinol drops in the stirring tank; Speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one, added 2 parts of tetramethyl thioureas then; 0.5 part adjacent benzenesulfonimide continues to stir 1 hour, after mixing; Add 4.5 parts of talcum powder and 0.5 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
The preparation method of B component is: with 46 parts of TEB 3Ks, and 4 parts of epoxy acrylates, 5 parts of methylacrylic acids, 15 parts of ABS resins; 0.01 part Resorcinol, 246,0.4 parts of γ-methacryloxypropyl trimethoxy silane of 0.5 part of oxidation inhibitor; 0.1 part vinyltrimethoxy silane drops in the stirring tank, the speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one; Add 0.5 part of isopropyl benzene hydroperoxide then, continue to stir 0.5 hour, after mixing; Add 4.5 parts of talcum powder and 0.5 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
Embodiment 2
The preparation method of A component is: with 50 parts of TEB 3Ks, and 10 parts of urethane acrylates, 20 parts of methylacrylic acids, 10 parts of chlorosulfonated polyethylene rubbers; 20 parts of ABS resins, 10 parts of MBS resins, 0.1 part of MEHQ drops in the stirring tank; Speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one, added 10 parts of tetramethyl thioureas then; 1 part of adjacent benzenesulfonimide continues to stir 1 hour, after mixing; Add 6 parts of silicon powders, 3 parts of lime carbonate and 1 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
The preparation method of B component is: with 60 parts of TEB 3Ks, and 10 parts of urethane acrylates, 10 parts of methylacrylic acids, 20 parts of ABS resins; 10 parts of MBS resins, 0.1 part of MEHQ, 1.5 parts of antioxidant 1010s, 1.6 parts of γ-methacryloxypropyl trimethoxy silane; 0.4 part vinyltrimethoxy silane drops in the stirring tank, the speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one, added 2 parts of methylethyl ketone peroxides then; Continue to stir 0.5 hour, after mixing, add 6 parts of silicon powders; 3 parts of lime carbonate and 1 part of aerosil continue to stir 1 hour, and material gets final product after becoming homogeneous body.
Embodiment 3
The preparation method of A component is: with 47 parts of TEB 3Ks, and 3 parts of Rocryl 400s, 15 parts of methylacrylic acids; 7.5 part paracril, 22.5 parts of agent ABS resins, 0.055 part of Resorcinol drops in the stirring tank; Speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one, added 6 parts of tetramethyl thioureas then; 0.75 part adjacent benzenesulfonimide continues to stir 1 hour, after mixing; Add 6.5 parts of silicon powders and 1 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
The preparation method of B component is: with 57 parts of TEB 3Ks, and 3 parts of Rocryl 400s, 7.5 parts of methylacrylic acids, 22.5 parts of ABS resins; 0.055 part Resorcinol, 246,1.0 parts of γ-methacryloxypropyl trimethoxy silane of 1 part of oxidation inhibitor; 0.25 part vinyltrimethoxy silane drops in the stirring tank, the speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one; Add 1.25 parts of isopropyl benzene hydroperoxides then, continue to stir 0.5 hour, after mixing; Add 6.5 parts of silicon powders and 1 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
As shown in Figure 1, under identical condition of cure, embodiment 3 can reach more than 85% of 24 hours solidification intensities about 2 hours, and commercially available modified acroleic acid ester gum then needed 9～10 hours just can reach 85% of 24 hours solidification intensities.
Embodiment 4
The preparation method of A component is: with 45 parts of TEB 3Ks, and 5 parts of ethoxyquin bisphenol a diacrylates, 15 parts of methylacrylic acids, 7.5 parts of X 050s; 22.5 part ABS resin, 0.055 part 2, the 6-toluene di-tert-butyl phenol drops in the stirring tank, and the speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours; Make it to become even one, add 6 parts of N then, the N-dimethyl-p-toluidine; 0.75 part adjacent benzenesulfonimide continues to stir 1 hour, after mixing; Add 6.5 parts of lime carbonate and 1 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
The preparation method of B component is: with 57 parts of TEB 3Ks, and 3 parts of ethoxyquin dihydroxyphenyl propanes two
Propenoate, 7.5 parts of methylacrylic acids, 22.5 parts of ABS resins, 0.055 part 2; The 6-toluene di-tert-butyl phenol, 0.7 part of antioxidant 1010,168,1.0 parts of γ-methacryloxypropyl trimethoxy silane of 0.3 part of oxidation inhibitor; 0.25 part vinyltrimethoxy silane drops in the stirring tank, the speed with 300 rev/mins under 45 ℃ of conditions stirred 30 hours, made it to become even one; Add 1.25 parts of Lucidols then, continue to stir 0.5 hour, after mixing; Add 6.5 parts of lime carbonate and 1 part of aerosil, continue to stir 1 hour, material gets final product after becoming homogeneous body.
Performance through following experimental test thixotropy high-strength acrylate structural adhesive of the present invention.
Test example 1
Tensile shear strength is tested according to GB/T 7124-2008.
Test example 2
The stripping strength of floating is tested according to GB/T 7122-1996.
Test example 3
The heat resistance aging resistance is tested according to GB/T 7124-2008.
Test example 4
The drafting of cure profile under the normal temperature condition
Carry out the performance comparison test with being used for certain bonding company's modified acroleic acid ester gum of rail and embodiment 1,2,3,4 on the market, test result is following:
Can find out from the experimental result of last table; The present invention preparation have HS and the good acrylate structural adhesive of thixotropy has higher shearing resistance and unsteady stripping strength; Also has excellent heat resistance aging resistance simultaneously; It is on-the-spot when bonding to be applied to railway track compound inslation joint; Can satisfy room temperature fast-curing and high-intensity performance requriements; Its performance has not only surpassed among the railroad industry standard TB/T 2975-2010 of the People's Republic of China the requirement of scene with the physical and mechanical property of sizing agent, but also has reached in this standard the requirements at the higher level to the physical and mechanical property of insulation channel plate: shearing resistance >=35MPa, the stripping strength >=6kN/m that floats (shearing resistance of above-mentioned 4 embodiment and unsteady stripping strength are to mix the result that the generation curing reaction recorded after 24 hours in A component and B component); Improve the safety of rail composite-joint greatly, thereby also just reduced potential safety hazard.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the preparation method with the good acrylate structural adhesive of HS and thixotropy is characterized in that said acrylate structural adhesive comprises A component and B component, and wherein, the weight ratio of A component and B component is 1:1:
The preparation method of said A component comprises: with 40～60 parts by weight of acrylic ester monomer, and the methylacrylic acid of 10～20 weight parts, the elastomerics of 5～10 weight parts; The stopper of the toughner of 15～30 weight parts and 0.01～0.1 weight part drops in the stirring tank, and the speed with 300 rev/mins under 40～50 ℃ of conditions stirred 30 hours, made it to become even one; Add the promotor of 2～10 weight parts, the secondary accelerator of 0.5～1 weight part then; Continue to stir 1 hour, after mixing, add the filler of 5～10 weight parts; Continue to stir 1 hour, material gets final product after becoming homogeneous body;
The preparation method of said B component comprises: with 50～70 parts by weight of acrylic ester monomer, and the methylacrylic acid of 5～10 weight parts, the toughner of 15～30 weight parts; 0.01 the stopper of～0.1 weight part, the coupling agent of the oxidation inhibitor of 0.5～1.5 weight part and 0.5～2 weight part drop in the stirring tank, the speed with 300 rev/mins under 40～50 ℃ of conditions stirred 30 hours; Make it to become even one, add the initiator of 0.5～2 weight part then, continue to stir 0.5 hour; After mixing; The filler that adds 5～10 weight parts continues to stir 1 hour, and material gets final product after becoming homogeneous body.
2. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1; It is characterized in that said acrylate monomer is one or more a mixture among TEB 3K, Jia Jibingxisuanyizhi, NSC 20956, methylacrylic acid hydroxyl ester, epoxy acrylate, urethane acrylate, ethoxyquin bisphenol a diacrylate and the trifunctional group acrylate.
3. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1; It is characterized in that said elastomerics is one or more a mixture in paracril, chlorosulfonated polyethylene rubber, X 050, polybutadiene rubber, the acrylic elastomer.
4. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1 is characterized in that, said toughner is one or more mixture in ABS resin, MBS resin, the SBS resin; Said stopper is Resorcinol, MEHQ, 2,6-toluene di-tert-butyl phenol and 2, one or more mixture in the 5-dimethyl-Resorcinol.
5. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1 is characterized in that, said promotor is one or more mixture in Thiourea, amine, organometallics, the phosphorus compound; Said secondary accelerator is adjacent benzenesulfonimide.
6. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1 is characterized in that, said initiator is one or more a mixture in isopropyl benzene hydroperoxide, Lucidol, the methylethyl ketone peroxide.
7. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1 is characterized in that, said oxidation inhibitor is one or more mixture in Hinered phenols, amine, phosphorous acid esters, the thioesters class.
8. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1 is characterized in that, said filler is one or more a mixture in lime carbonate, silicon powder, aerosil, talcum powder and the pure aluminium silicate.
9. the preparation method with the good acrylate structural adhesive of HS and thixotropy according to claim 1; It is characterized in that said coupling agent is that weight ratio is the γ-methacryloxypropyl trimethoxy silane of 4:1 and the mixture of vinyltrimethoxy silane.
10. one kind has HS and the good acrylate structural adhesive of thixotropy; It is characterized in that; Said structure glue is directly mixed under normal temperature condition by A component that is 1:1 like the arbitrary described weight ratio of claim 1 to 9 and B component and processes; Curing reaction generating structure glue will take place in said A component and B component after 10～15 minutes, the tensile shear strength >=35MPa of said structure glue, and stripping strength >=6kN/m floats.
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