SU1698329A1 - Hydroinsulating coat - Google Patents

Description

one

(21) 4696824/05

(22) 04/14/89

(46) 15.t2.9f, Bull. №46 „

(75) O.A.Prokhorenko and N.D. Dobrov

(53) 678.375 (088.8)

056} USSR Author's Certificate 1180372, cl. C 09 D 3/58, 1980.

Instructions on sealing between the precast concrete structures of furano-epoxy rubber coating. - M .: TsMIPKS at MISI mm; V.V. Kuibyshev, 1988.

(54) WATERPROOFING COATING {57} The invention relates to hydraulic industrial and transport construction and is intended for filtration protection and repair of concrete and reinforced concrete structures under conditions of high humidity, as well as for corrosion protection of metal structures. The invention allows to increase the adhesive strength to the water saturation concrete and metal and enhance the durability of the coating due to flashing of the coating made of a primer coating and impregnating an adhesive layer on the basis furanoepoksidnogo binder comprising a mixture of monomer and furfurolatsetonovogo alkilrezortsinovoy epoxy resin at a weight ratio of 65 75: (25-35), while the primer layer is made from, parts by weight: furano-epoxy binder 100; rosin3-5; solvent 10-15 and hardener 20-25; adhesive and impregnating layers are made of, by weight.h: furano epoxy binder 66-67; liquid nitrile rubber 33-34; the hardener 20-25, the coating layer is made of, by weight.h: fu early-epoxy binder 100 and the hardener 20-25. 9 tab.

The invention relates to hydraulic industrial and transport construction and is intended for filtration protection and repair of concrete and reinforced concrete structures under conditions of high humidity, as well as for corrosion protection of metal structures.

The purpose of the invention is to increase the adhesion strength to water-saturated concrete and metal and increase the durability of the coating.

Specific coating compositions are shown in Table 1.

3 compositions use the following substances: furfurol-acetone monometer

FAM (TU-6-05-1618-73), alkyl resorption epoxy resin AREM-2-20 (TU 38,309101-87), modified extraction rosin EM-3 (TU 13-5789589-50-B6), liquid nitrile rubber SKN-18-1A (TU 38-10316-76) and fiberglass type

T-10; T-10/1, T-10/2; T-11 (GOST 19170-73).

The mixture (mixture A) is prepared by combining furfurol-acetone monomer FAM with AREM-2-20 elkilresortsinovy epoxy resin in a water bath for 1-1.5 to 70-100 ° C.

Table 2 shows the results of tests on adhesive strength depending on the ratio of furfurol-acetone

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monomer and alkylresorcinol epoxy resin.

From Table 2 it can be seen that the optimal ratio of furfurol-acetone monomer FAM and alkylresortmnose epoxy resin AREM-2-20 is in the range of 65-75% FAM and 35-25% of AREM-2-20. If the content of FAM is more than 75%, then the adhesive strength deteriorates, and the content of FAM less than 65% leads to an insignificant increase in adhesive strength and the cost of the mixture. In general, mixture A is also cheaper compared to the FAE-IS-30 resin. In addition, mixture A is more technologically advanced, since the epoxy compound is an AREM-2-20 resin, has a dynamic viscosity of 1,, 2, and the FAEIS-30 epoxy component is an IC-1 resin (TU 38- 1091-87), 5-35 Pa-s.

To the mixture A, add the modified EM-3 modified rosin, previously dissolved in a solvent such as benzene or acetone, and mix thoroughly. Immediately before starting work, a hardening / gel type of polyethylene polyamine (PEPA) is introduced into the resulting composition.

Table 3 shows the compositions of the primer layer, Table D. shows the adhesiveness of the composition according to the amount of rosin.

From Table 4, it can be seen that the optimal rosin content is within 3-5 wt.h. If the amount of rosin is less than 3 parts by weight, the hesion strength is noticeably deteriorated, and if it is more than 5 parts by weight, the adhesive strength increases slightly, but then an additional amount of solvent must be added, which reduces the physical-mechanical properties. htermstik and to kryty.

Mix A is combined with CKH-I8-1A liquid nigril rubber. The combination is maintained in a water bath for 1-2 hours at 80-100 ° C. Immediately before starting work, a obtained sealer of the PEPA type

Table 5 shows the compositions of the adhesive and impregnating layers, and Table 6 — the properties are coated depending on the amount of injected liquid nitrile rubber.

Lz Table 6 shows that with the introduction and the composition of the adhesive and impregnating layers of liquid nitrile rubber is less than 30 mash., The coating has a low plasticity, and with the introduction of liquid nitrile rubber more than 38 msec. ductility increases slightly, but at the same time, the toughness increases significantly, therefore,

the technological properties of the composition are deteriorated.

A hardener of the type of polyethylene polyamine is introduced into the mixture A immediately before the start of work and stirred for 3-5 minutes at ambient temperature, but not below + 10 ° C.

Table 7 shows the composition of the coating layer, Table 8 shows the properties of the coating, depending on the amount of hardened,

From table 8, we can conclude that when reducing the amount of hardener below 20 wt.h. curing of the composition is slower, in which the required strength characteristics are not achieved and the technological process time is increased (by 1.5 times), and the increase in the amount of hardener is above 25 wt.h. leads to a decrease in the viability of the composition (C 1.5-2 times).

The prepared waterproof coating is applied to the surface to be treated according to known technology.

Table 9 shows the physicomechanical properties of the proposed coating and the prototype.

From Table 9, it can be seen that the proposed coating has higher adhesion strength compared to the prototype (2-2.5 times both to water-saturated concrete and metal due to the fact that there is no liquid nitrile rubber in the primer of the proposed coating The additive in the form of extraction modified rosin EM-3, which improves the adhesion properties of the coating, is put in. From the above data it follows that the proposed coating has higher durability due to the absence of liquid nitrile rubber in The coating layer in the proposed coating performs the function of protecting liquid nitrile rubber from the environment, i.e. from oxidizing it, and increases the strength of the entire coating. The proposed coating is cheaper because mixture A is cheaper than FAEIS-30 resin and it uses two times less than in the prototype of the deficient liquid nitrile rubber SKN-18-1A. Instead, it uses a larger amount of mixture A. The total amount of all components used per unit area processed by the surface ti, x is almost the same, so can be considered in both the coating, the flow rate of mixture A in the proposed coating longer by an amount equal to the number of not used in

4n compared to the prototype liquid nitrile rubber.

Since the amount of solvent used is significantly reduced, the proposed coating, compared to the prototype, is practically non-toxic.

Foamy and z obre and e The waterproofing coating made of primer, adhesive, impregnating and coating layers based on furano-epoxy binder, characterized in that, in order to increase the adhesion strength to water-saturated Mu Concrete and Metal and Increase Durability Composition Furano Epoxy Diode Mix

The test results of the influence of the ratio of furfurolts and alkylressers of new EPORSS. RESIN

Hd atsgez onchu pr g; sst. ;

CHAPTER 4 Results of the test of the influence of the amount of rubber of the rosin us gdgesiatau durable-, prg.Ekogo coating

The compositions of the adhesive and impregnating layers

 When using glass tacks with dense weaving of nigel in the composition, guv t up to 20 msec. distributor

Table b Test results for and the amount of liquid nitrile ka / chu "a t properties gudelaga kcho coating

of the coating, these layers are made on the basis of a furano-epoxy binder — a mixture of furfurol-acetone monomer and alkylresorcinol epoxy resin in a mass ratio, respectively (65-75) :( 25-35), while the primer layer is made from, wt.h: furi - opoxide binder 100; Rosin 3-5, solvent 10-15 and hardener 2025. : pei and impregnation layers are made: k-. parts by weight: furano-epoxy binder 5 5-67:. 33–34 nitrile rubber and oth, o.Ј: gel 20–25, coating layer made :-: l o. parts by weight: furano-epoxy binder 100 and hardener 20-25.

Table 1

Table 5

The results of testing the effect of the amount of hardener on the properties of the proposed coatings

Prototype 2, A 2,6 2, k 0,3 0,08 2,2 2,1 1,3 1,3 0,1 0,1 0,1 0,1 0,09 0,05 0.0} 1.0 1.0 Predel5 , 2 6.2 6.4 5.9 5.3 M /, 9 5.1 M 6 Ofi 0.1 o, 0.1 0V09 1.0 1.0 1.0 0.9 0, S

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Claims (1)

Claim A waterproofing coating made of a primer, adhesive, impregnation and coating layers on the basis of a furanoepoxy adhesive, which is noteworthy in that, in order to increase the adhesion strength to water-saturated concrete and metal and increase the durability of the coating, these layers are made on the basis of furanoepoksidnogo binder - a mixture of furfural-acetone monomer and alkylresorcinol epoxy resin in a mass ratio, respectively (65-75) :( 25-35). wherein the primer layer is made of, parts by weight: furanose-epoxy binder 100: rosin 3-5: solvent 10-15 and hardener 201) 25, the adhesive and impregnation layers are made by weight: furanoepoxy binder S3-67: liquid nitrile rubber 33-34 and stierdigel 20-25, the coating layer is made • • e :; from, parts by weight ;; furanoepoksidnaya binder 15 binder 100 and hardener 20-25. Table 1 The composition of the furanoepoxy mixture Composition, parts by weight ί Prototype Say " 2 3 4 ΐ 6 Furfurolacetone Monomer FA 70 ί i .. ί - ⁷ 1 - ι Alkyl Resorcinol Epoxy Resin EIS-1 thirty - - - ί f - I 1 Furfural acetone monomer FA G4 * - 55 60 65 ΐ to! 80 85 j AREM-2-20 Alkyl Resorcinol Zinc Oxide Resin 45 40 35 30 j 25 1 20 15 I Hardener 20 16 thirteen 20 ___ Ζ2_.Χ, 28 zo i table 2 The test results of the effect of the ratio furfuralsogios · :; monomer and alkyl reorientation epoxy on adhesion. o p ^ h-gzet’s repayable '^ GMR Results - Tests of the effect of the amount of rosin but agoved coating I Properties Prototype Predlgg.ee » iwft composition ~ ------  " '2 3 ι -1 * 5 ! 5 τ 3 {.Adhesive strength to architect | saturated concrete, MPa 2.4 4.6 5.3 5.9 6.1 I 6.1 ί 6 3 6.4 6.4 {Adhesive strength to metal | MPa 2.2 3.5 4.3 4.5 i 4.5 4.7 i 4.8 4.8 4.9 The compositions of the adhesive m ps.nourishment layers j ingredient . ... _g ', -Λ ¹ ·' ··· · ...... ....... Prototype Shaggy 1 2 3 4 5 h 7 (Furanoepoxy. | FAEIS ~ 30 .66-67 “. ~ Mr. | The mixture ^β Α ^β - 64 66 66 66 67 67 70 | W ⁽ .Ttsky nmtrml rubber 34-33 36 34 ' 34 1 34 • 33 33 thirty I Solvent 20* - (Dispenser 20 20 18 22 | 24 25 26 25 * When using fiberglass with a tight weaving of threads, the composition is reduced to 20 m.s.ch. solvent. Table 6 Test results of the effect of quantities of liquid mitral rubber on c * <ostea npe ^ yiaraorwxo coatings | Properties Prototype Soitai proposed 1 J τ 3 I 4 6 7 (Adhesion Strength. MPA 6.1 5.6 5.8 • 5.9 j 6.3 6.4 6.1 {Crack resistance. mm 0.3 0.34 ..... 0.32. 0.31 0.31 0.3 0.26 0.16 g * The composition of the coating layer co f ~. CO CM’’s- σΓ to οι ________ 1 ! IT / j CD co ia ABOUT III! III ! 1 1 eleven J o 1 GP ABOUT'! σ> } 1 S '1 40 1 1 1 1 1 X ”8 <*> 1 X 1 8 Ο ABOUT 1 1 <71 Ι, -ι- h Φ 1 1 • X 1 1 1 1 K 1 1 Ol ΣΤ 1 1 Ο 1 Ο 1 »S 8 8 ς ι with ι about about X g 1 2 "r ~ I 1 8 Φ ί: q 1 1 J- r ...... f 8. 8 ω ι ί about about 1 8 1 Ο 1 e. 1 t Φ ι to ι g— g- " φ ί f 8 0 ι 1 χ U- & i J X I ί j t Φ a ι ABOUT about 1 >> ί A3 ί CO 8 L 1 o 1 1 ί O 1 N t α ί ι G-.  8 X k ^J ” ^{_i 1} ί 8 x 8 X I! ί -I- I O. 1 J '1 ST se I Q) ϊ <5 1 ί X J 8 g ! __ Φ 1 Φ 9 18 r: 1 Cl G X 1 from 8 8 8 r * ί ί I 8 ? "- 'Ti 0 1 o 8 2 t ο ί about about l · ’ ί m 8 J3 J 40 ABOUT 1 ! X ί ch 8 C5 about Q. C t *> 1 Φ 1 8 8 x Si g ......- η X ί Σ t Η J 'ί LA 1 8 About 1 Oh! C2 V— 8 l t C 8 CO f a. TO 1 Λ 1 2 I <--- { az about X 3 b 1 F 8 8 l 1 and 1 f— g_____j .0 1 o ? U 8! OU CL 8 x 1 t ε about i jx ί φ 1 Ο 8 L ABOUT 1 About J Ο ί 40 ϊ about about 1- 8 8- 1 and 8 X 1 1 8 X Γ - ~ ϊ about " about 1 Φ ι? • J— V. u 1 x 8 CD 8 CO ί S. about ! - X 1 Q 8 "Μ! about about Σ f 3 ί Q. 8 8 ¢) ι α> f X $ ------- GO t about 8 Σ <1 1- 8 ί— ί α ι: CHG .. φ 8 ί Φ ί -Τ Ε P. S- 1 8 Φ ι * - 1 about about Ct Φ CL 1 t X ί t ί "U 8 ί from 1 I X 8 Ο? g— 40 φ 8 8 40: 1 Φ 8> Λ 1 about —G about 1 Λ Σ 1 I n 1 b Φ and 8 U α I 8 > x 8 About 05 ι g about i Z ί Ο ί Γ * Ί with 0 ί S ' ο 8 CO 9 I and j 0 8S J "- ί -T S lx • 5 i and 1 c ₽1 ί ”( X 1 φ ί ϊ ϋ ί σ; Cx : Ο ί a. and 8 Φ X. ί 40 8 cm silt 0) 8 x __1 7 S i 18 ι-— Joint venture X s about > » l1 CO I b 8 x Ts >> 8 MF 8 fM -ΐΓ f 1 05 Ts About 1 j X 8 f φ _R --- _r (!) 8 L. κ * 1 ί CM X 1 c? c> X 8 -4 * { ABOUT ! < 8 X 1 τ 8 <8 cm - ^ r X “G“ 5 X 8 18 With 0? 1 i x 1 About i about sous X 8 40 1 uh 8 Μ 8 8 about LTi 1 Λ 1 H τ •! —Η I about ο Η i I 1 About ί * · 24 8 Ο ί στ Joint venture ί z φ U 1 ”I * < I T YU I τ- ί ABOUT Lf \ ί 8. X * 1____) X 1 8 t c Σ X 8 8 xf 1 ο ω ι ο ι to. ί Οζ X Σ ϊ ^ 0 ι S-1 \ O 8 φ 1 x X φ μ — ί 1 x X Φ 1 ί 40 Midrange 1 o L 1 CO 1 8 x υ Ο 1 N 1 cm cho ί " φ α t ι 1 Φ X ! <"——— 7 1 L. α * 1 ί -ί ’ cM ’H α: And I 4- I 1 < Ο C 1 <- 1 CM tn 8 W X 8 1 ί ϊ QJ 1 from ί X f '2 i 1 Η 8 n P1 F I 8 σ about Β ο. 8 Η Σ <si ! 0 ag F (Ο 1 □. CL cu 8 ΕΖ 8 ex from: I- I g I g I I I I I I? g I i 1 Ϊ 3 8 J { I I! J ί I I | ί J ί 8 I ί 3 g I I J i (! ? t t i 8 f I 1 e s I I ί I I! 8 ί! I < I I (ί I i t I i I I I ί I I I I I I ί ί! I I