CN109854859A - A kind of no-dig technique pipeline point restorative procedure based on two-component resin for restoration - Google Patents
A kind of no-dig technique pipeline point restorative procedure based on two-component resin for restoration Download PDFInfo
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- CN109854859A CN109854859A CN201910211225.4A CN201910211225A CN109854859A CN 109854859 A CN109854859 A CN 109854859A CN 201910211225 A CN201910211225 A CN 201910211225A CN 109854859 A CN109854859 A CN 109854859A
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- resin
- component
- restoration
- air bag
- repairing
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- 229920005989 resin Polymers 0.000 title claims abstract description 94
- 239000011347 resin Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 70
- 239000002131 composite material Substances 0.000 claims abstract description 37
- 239000003365 glass fiber Substances 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 9
- 230000008023 solidification Effects 0.000 claims abstract description 9
- 239000000178 monomer Substances 0.000 claims description 21
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 16
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims description 16
- 239000003063 flame retardant Substances 0.000 claims description 15
- 229920005749 polyurethane resin Polymers 0.000 claims description 15
- 150000005846 sugar alcohols Polymers 0.000 claims description 15
- 230000008595 infiltration Effects 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 150000002148 esters Chemical class 0.000 claims description 8
- 239000004014 plasticizer Substances 0.000 claims description 8
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- ORVGYTXFUWTWDM-UHFFFAOYSA-N silicic acid;sodium Chemical compound [Na].O[Si](O)(O)O ORVGYTXFUWTWDM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000072 sodium resin Substances 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 229920001228 polyisocyanate Polymers 0.000 claims description 4
- 239000005056 polyisocyanate Substances 0.000 claims description 4
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 4
- DIFFLMNDXWOKQJ-UHFFFAOYSA-N [K].O[Si](O)(O)O Chemical compound [K].O[Si](O)(O)O DIFFLMNDXWOKQJ-UHFFFAOYSA-N 0.000 claims description 3
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims description 3
- 238000012644 addition polymerization Methods 0.000 claims description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 2
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 description 22
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 229920002635 polyurethane Polymers 0.000 description 12
- 239000004814 polyurethane Substances 0.000 description 12
- 150000002484 inorganic compounds Chemical class 0.000 description 10
- 229910010272 inorganic material Inorganic materials 0.000 description 10
- 150000002894 organic compounds Chemical class 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 6
- 239000012948 isocyanate Substances 0.000 description 6
- 150000002513 isocyanates Chemical class 0.000 description 6
- -1 prepolymer Substances 0.000 description 6
- 239000004721 Polyphenylene oxide Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- 102100037978 InaD-like protein Human genes 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- 101150003018 Patj gene Proteins 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
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- 239000012779 reinforcing material Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- ANHAEBWRQNIPEV-UHFFFAOYSA-N 2-chloroethyl dihydrogen phosphate Chemical class OP(O)(=O)OCCCl ANHAEBWRQNIPEV-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000005520 cutting process Methods 0.000 description 2
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical class C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 2
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- DCKDPDONFMIQBA-UHFFFAOYSA-N 2,2-dimethylpropane-1,3-diol;phthalic acid Chemical compound OCC(C)(C)CO.OC(=O)C1=CC=CC=C1C(O)=O DCKDPDONFMIQBA-UHFFFAOYSA-N 0.000 description 1
- OUCSIUCEQVCDEL-UHFFFAOYSA-N 2,3,4-tribromophenol Chemical compound OC1=CC=C(Br)C(Br)=C1Br OUCSIUCEQVCDEL-UHFFFAOYSA-N 0.000 description 1
- LLUIQISTLAXOHC-UHFFFAOYSA-N 2-chloropropyl dihydrogen phosphate Chemical class CC(Cl)COP(O)(O)=O LLUIQISTLAXOHC-UHFFFAOYSA-N 0.000 description 1
- HBTAOSGHCXUEKI-UHFFFAOYSA-N 4-chloro-n,n-dimethyl-3-nitrobenzenesulfonamide Chemical compound CN(C)S(=O)(=O)C1=CC=C(Cl)C([N+]([O-])=O)=C1 HBTAOSGHCXUEKI-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- UDSFAEKRVUSQDD-UHFFFAOYSA-N Dimethyl adipate Chemical compound COC(=O)CCCCC(=O)OC UDSFAEKRVUSQDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 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 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
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- STFMTYFMMARGHA-UHFFFAOYSA-N hexane-1,6-diol;phthalic acid Chemical compound OCCCCCCO.OC(=O)C1=CC=CC=C1C(O)=O STFMTYFMMARGHA-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- YACKEPLHDIMKIO-UHFFFAOYSA-N methylphosphonic acid Chemical compound CP(O)(O)=O YACKEPLHDIMKIO-UHFFFAOYSA-N 0.000 description 1
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of no-dig technique pipeline point restorative procedure based on two-component resin for restoration, it is characterized in that, the following steps are included: being put in glass fibre woven roving composite felt, then winding the glass fibre woven roving composite felt for infiltrating resin and being fixed on repairing air bag Step 1: two-component resin for restoration is equably scraped after mixing；Step 2: sending repairing air bag to pipeline, and it is accurately located at piping failure position；Step 3: being inflated to required pressure value for the repairing air bag, the glass fibre woven roving composite felt for infiltrating resin is made tightly to be fitted in broken pipe inner wall under repairing air bag compression；Step 4: keeping the repairing air bag pressure constant, until resin solidification discharges afterwards completely to normal pressure, point repairing composite material is formed.The present invention provides a kind of no-dig technique pipeline point restorative procedure based on two-component resin for restoration only carries out the reparation of local stiffening to damage location, and specific aim is stronger, and speed of application is fast, high-efficient.
Description
Technical field
The present invention relates to polymer composite more particularly to a kind of no-dig technique pipelines based on two-component resin for restoration
Point restorative procedure.
Background technique
Important component of the drainage pipeline as municipal public engineering plays the role of discharging rainwater, sewage in time,
Play the part of the role of city " underground life line ".With the fast development of China's economy, the continuous quickening of urbanization process is laid with
Drainage pipeline also constantly extend, and most of be laid below built city.The operation round the clock of drainage pipeline, is bound to
The problems such as damaged, cracking, burn into dust accumulation and differential settlement can be brought, causes urban duct drainability to decline, influence people
Trip.
Drainage pipeline many places are in the busiest section in city, if using traditional trenchless rehabilitation technology, spending to broken pipe
It is huge, while urban transportation is given, environment, people's daily life is made troubles influence.No-dig technique pipe rehabilitation technology refers to use
Few method excavated or the method for excavating earth surface does not carry out drainage pipeline restoration updating.Relatively traditional trenchless rehabilitation technology, should
Item technology is under the premise of guaranteeing pipeline proper drainage, and road pavement is not excavated, and has good economy, environment and society
It can benefit.It is mainly reflected in the following aspects: (1) for outmoded and broken pipe, topology update can be met simultaneously and expand stream
Demand (2) speed of application it is fast, short time limit reduces cost；(3) urban transportation and environment are influenced small；(4) construction noise
It is low, it does not disturb residents.
Dotted in-situ solidifying method is the important component of no-dig technique pipe rehabilitation technology, is referred to be repaired in former pipeline
Position will be infiltrated the glass fibre reinforced composion of two-component curable resin, be tightly attached to by the way of air bag expansion
Broken pipe inner wall forms the method for local route repair after normal temperature cure.Dotted in-situ solidifying method relative to whole reparation, for
Property it is stronger, rehabilitation cost is lower, this China at this stage drainage pipeline repair insufficient investment in the case where, have considerable
Development prospect.
Summary of the invention
The present invention is to solve current technology shortcoming, provides a kind of no-dig technique based on two-component resin for restoration
Pipeline point restorative procedure only carries out the reparation of local stiffening to damage location, and specific aim is stronger, and speed of application is fast, efficiency
It is high.
It is another object of the present invention to polyurethane organic/inorganic compound resin can form the netted of high crosslink density
Structure is equipped with woven roving composite felt as enhancing carrier, can form high bond strength, high bending strength, high bending modulus is repaired
Multiple material.
A kind of technical solution provided by the invention are as follows: no-dig technique pipeline point reparation side based on two-component resin for restoration
Method, comprising the following steps:
It is put on glass fiber composite mat Step 1: two-component resin for restoration is equably scraped after mixing, then will
The glass fiber composite mat of infiltration resin winds and is fixed on repairing air bag；
Step 2: the repairing air bag is sent to pipeline, and the glass fiber composite mat of the infiltration resin is smart
Really it is located in piping failure position；
Step 3: being inflated to required pressure value for the repairing air bag, make the glass fiber composite mat of the infiltration resin
It is being fitted in broken pipe inner wall；
Step 4: keeping the repairing air bag pressure constant, until resin solidification is complete, forms point and repair composite wood
Material；
Step 5: taking out pipeline, completing the point reparation repairing release to normal pressure.
Preferably, the two-component resin for restoration includes:
Component A: aqueous silicic acid salt resin；
B component: urethane monomer: 0-50wt.%, polyurethane prepolymer and polyurethane resin: 0-60wt.%, it is functional
Auxiliary agent: 0-50wt.%；
Wherein, the end functional group of urethane monomer in the B component, polyurethane prepolymer and polyurethane resin is different
Cyanic acid base, and the weight percent of the isocyanate group is 10%-35%；
Wherein, the weight ratio of the component A and the B component are as follows: 0.4-0.7:1.
Preferably,
The urethane monomer be aromatic diisocyanate, aromatic polyisocyanate and its autohemagglutination homologue and its
Mixture, and the viscosity at 25 DEG C is less than or equal to 300mPas.
Preferably,
Before the step 1, need to carry out following preparation: be drawn water using site inspection, pipe plugging and
The methods of cleaning tube wall is treated pipe-repairing and is detected, and determines damage location and line size to be repaired；Then according to be repaired
Multiple line size size, determines the size of glass fiber composite mat.
Preferably,
The two-component resin for restoration total volume dosage is 1.6 times of glass fibre woven roving composite felt area；
The dosage volume ratio of component A and B component is 1:2 in the two-component resin for restoration.
Preferably, pinpoint method specifically includes in the step 2:
After the repairing air bag is sent into pipeline, operator is sent air bag is repaired to pipeline using inflation push pipe,
And intercommunication communication is carried out with CCTV video camera operator, repairing air bag is accurately located at piping failure position.
Preferably, the method inflated in the step 3 are as follows:
Air compressor machine equipped with pressure gauge is connected with the special purpose interface of inflation push pipe, is inflated to institute for the repairing air bag
Need pressure value.
Preferably,
The polyurethane prepolymer and polyurethane resin are by or mixtures thereof urethane monomer and first kind polyalcohol addition
Polymerization reaction obtains.
Preferably,
The functional aid includes catalyst, fire retardant and plasticizer；
Wherein, the catalyst is tertiary amine catalyst, and the fire retardant is additive flame retardant,
The plasticizer is aliphatic diacid ester or aromatic diacid ester.
Preferably,
The aqueous silicic acid salt resin is aqueous silicic acid sodium resin or aqueous silicic acid potassium resin；Containing suitable in the component A
Two class polyalcohol of flow control；Viscosity of the component A at 25 DEG C is 300-650mPas.
It is of the present invention the utility model has the advantages that
1, in no-dig technique pipeline rehabilitation field, there are many different restorative procedures, are broadly divided into whole reparation and point
Repair two major classes in position.Wherein whole repair typically refers to the pipeline between two inspection shafts carrying out integral reinforcing reparation, pipeline
Whole repair can reach leakproof, anti-corrosion and the purpose for increasing overall structural strength.All in all whole repair is non-excavation rehabilitation
Mainstream technology；But point reparation carries out the recovery technique of local stiffening as a kind of to damage location, and specific aim is more
By force, municipal pipeline rehabilitation expense can be significantly reduced；
2, there is medium reactivity, isocyanates and A in B component after the mixing of polyurethane organic/inorganic compound resin
After water reaction in component, high concentration CO is released2Solidify for silicate resin, forms the repair materials of cross-linked network
Tube performance can be maintained, speed of application is fast, high-efficient in the short time or slightly for a long time by broken pipe reparation to ne-leakage.
3, compared to unsaturated-resin used in the in-situ solidifying method (CIPP) in whole repair, polyurethane is organic/nothing
Machine compound resin is solvent-free, without volatile flammable solvents such as styrene, belongs to environment protection pipe repair materials；
4, compared to unsaturated-resin-non-woven fabrics reinforcement used in the in-situ solidifying method (CIPP) in whole repair
System, the polyurethane organic/inorganic compound resin that the present invention uses can form the reticular structure of high crosslink density, be equipped with woven roving
Composite felt is compressed it using reparation air bag as enhancing carrier and is fitted in broken pipe inner wall, and it is strong can to form high bonding
Degree, high bending strength, the repair materials of high bending modulus.
Specific embodiment
The present invention is described in further detail below, to enable those skilled in the art's refer to the instruction text can
Implement accordingly.
The present invention provides a kind of no-dig technique pipeline point restorative procedure based on two-component resin for restoration, including it is following
Step:
1. preparation: using site inspection, pipe plugging draws water, and the methods of cleaning tube wall detects pipeline, really
Determine damage location and line size to be repaired；
2. cutting glass fibre woven roving composite felt: according to line size size to be repaired, cutting the glass of certain size
Fiber woven roving composite felt, the pipeline and glass fibre woven roving composite felt and amount of resin relationship of different tube diameters are shown in Table 1 (tree
Rouge total volume dosage is about 1.6 times for enhancing fabric area)；
3. resin agitating: according to glass fibre woven roving composite felt size, determining A, B component amount of resin, by A, B group
Divide with volume ratio 1:2, pours into open-top receptacle, no color differnece striped uniform to color with blender stirring 1-4min；
4. resin, which is scraped, smears wetting fibre: equably scraping the resin after stirring with scraper and be put on glass fibre woven roving and answer
Close felt on, scrape smear during, by construction regulation, by glass fibre woven roving composite felt progress gradation folding, each fold plane
It resin should all be carried out scrapes to smear, it is ensured that the abundant wetting fibre of resin；
5. winding glass fibre woven roving composite felt: the glass fibre woven roving composite felt for infiltrating resin being wrapped in and is repaired
On tonifying Qi capsule, the both ends of glass fibre woven roving composite felt are fixed with thin wire.The winding of glass fibre woven roving composite felt
Tightness with natural, relaxation for standard, do not scattered with fiber for standard by both ends fixation；
6. repair air bag it is in place: repairing air bag be sent into pipeline after, operator using inflation push pipe will repair air bag send to
Inside pipeline, and intercommunication communication is carried out with CCTV video camera operator, repairing air bag is accurately located at piping failure position
It sets；
7. repairing air bag inflation compression patching material: after repairing air bag is in place, by the air compressor machine for being furnished with pressure gauge and inflation
The special purpose interface of push pipe is connected, and is inflated to required pressure value for repairing air bag, infiltrates the glass fibre woven roving composite felt of resin
Broken pipe inner wall is tightly fitted under repairing air bag compression；
8. resin solidification: resin, which constantly solidifies, forms high intensity with glass fibre woven roving composite felt, and high-modulus simultaneously has
The point repairing composite material of high-tenacity, in resin curing process, air bag keeps air pressure constant, until resin solidification is complete
Entirely；
9. repairing air bag recycling: after resin solidification is complete, the pressure repaired in air bag being discharged to normal pressure, is repaired compound
Material is firmly bonded in broken pipe inner wall, and repairing air bag is detached from patching material, is recycled.
The pipeline and glass fibre woven roving composite felt and amount of resin relationship of 1 different tube diameters of table
Two-component resin for restoration includes: component A: aqueous silicic acid salt resin；
B component: urethane monomer: 0-50wt.%, polyurethane prepolymer and polyurethane resin: 0-60wt.%, it is functional
Auxiliary agent: 0-50wt.%；
Wherein, the end functional group of urethane monomer in the B component, polyurethane prepolymer and polyurethane resin is NCO
Group, and the weight percent of the NCO group is 10%-30%；
Wherein, the weight ratio of the component A and the B component are as follows: 0.4-0.7:1.
Specifically, the dual-component polyurethane base organic/inorganic compound resin, wherein component A is mainly aqueous silicic acid
Salt resin can contain a small amount of polyalcohol.B component is urethane monomer, prepolymer, resin and related functionality auxiliary agent, A, B group
Divide at 0-40 DEG C, mixed at a temperature of preferably 10-30 DEG C, reactive resin for restoration can be prepared, wherein each component is as follows:
It includes urethane monomer, polyurethane prepolymer, polyurethane resin and related functionality auxiliary agents for 1.B component, wherein
B component has the NCO group content of 10wt.%-30wt.%, wherein each ingredient can be composed of the following components:
(1) polyurethane prepolymer and polyurethane resin: it is poly- with polyalcohol addition for or mixtures thereof isocyanate-monomer
It closes reaction to obtain, the preparation method of polyurethane prepolymer and polyurethane resin is known to those skilled in the art；As a kind of excellent
Polyalcohol is added in isocyanate systems in the present embodiment for choosing, and 1-4h is reacted at 70-80 DEG C and is made, wherein poly- ammonia
The amount of ester prepolymer and polyurethane resin is 0-60 parts by weight, on the basis of 100 parts by weight B components.
(a) isocyanates needed for synthesis of polyurethane prepolymer and polyurethane resin is selected from aromatic diisocyanate, fragrance
Race's polyisocyanates and its autohemagglutination homologue and its mixture, this kind isocyanate includes MDI-100, MDI-50, liquefied mdi
(the modified MDI and Carbodiimide-Modified MDI of urethane), one or more of PAPI；
(b) polyalcohol needed for synthesis of polyurethane prepolymer and polyurethane resin is polyester polyol, in polyether polyol
One or more, wherein the hydroxyl value (OHZ) of polyalcohol be 55-450mg KOH/g, preferably 100-350mg KOH/g, this
Class polyalcohol includes adipic acid system polyester-diol (polyethylene glycol adipate glycol, polypropylene glycol adipate glycol), fragrance
(poly- phthalic acid diglycol esterdiol, poly- phthalic acid -1,6- hexylene glycol esterdiol gather adoption ester polyol
Phthalic acid neopentyl glycol esterdiol), polycaprolactone polyol, polycarbonate glycol, polyoxypropylene polyol (including
Polypropylene oxide-ethylene oxide polyalcohol of the ethylene chain section containing oxidation), such as polyetherdiol and polyether triol；
(2) isocyanate-monomer (urethane monomer): it is selected from aromatic diisocyanate, aromatic polyisocyanate
With its autohemagglutination homologue and its mixture；The isocyanates viscosity is preferably≤300mPas (under the conditions of 25 DEG C)；Such isocyanide
Acid esters includes TDI-100, TDI-80, MDI-100, MDI-50, liquefied mdi (the modified MDI of urethane and Carbodiimide-Modified
MDI), one or more of PAPI, NDI, XDI, PPDI, in an amount of from 0-50 parts by weight, using 100 parts by weight B components as base
It is quasi-；
(3) functional aid: it includes catalyst, fire retardant and plasticizer, wherein functional aid amount is 0-50 weight
Part is measured, on the basis of 100 parts by weight B components；
(a) catalyst used is preferably tertiary amine catalyst, and typical tertiary amine catalyst has triethylenediamine,
Dimethyl cyclohexyl amine, tetramethyl Alkylenediamine, dimethylethanolamine etc.；
(b) fire retardant described in is additive flame retardant, includes phosphoric acid ester additive flame retardant: (such as methylphosphonic acid two
Methyl esters, triethyl phosphate, isopropylated triphenyl phosphates, triphenyl phosphate etc.)；Halogenated phosphate additive flame retardant:
(such as three (two chloropropyls) phosphates, three (2- chloroethyl) phosphates, three (2- chloropropyl) phosphates etc.)；Halogenated hydrocarbons and other
Additive flame retardant containing halogen: (such as deca-BDE, tribromphenol etc.)；
(c) plasticizer used can be phthalic acid ester, aliphatic diacid ester, glycol benzoate etc..Preferably have
There is the plasticizer of good cold tolerance, such as aliphatic diacid ester, includes: dimethyl adipate.Diisopropyl adipate etc.；
2.A component is mainly aqueous silicic acid salt resin, can contain a small amount of polyalcohol；Viscosity is 300- at 25 DEG C of component A
650mPas, preferably 350-600mPas, wherein component A amount is 40-70 parts by weight, on the basis of 100 parts by weight B components.
(1) aqueous silicic acid salt resin can be divided into aqueous silicic acid sodium resin and aqueous silicic acid potassium resin, be preferably in the present invention
Aqueous silicic acid sodium resin, wherein the Baume degrees of aqueous silicic acid sodium resin is 30-60 ° of B é, preferably 40-55 ° of B é；Its modulus is
1.5-3.5M preferably 1.8-2.8M；
(2) degree of cross linking of compound resin entirety, the polyalcohol are improved in component A containing a small amount of polyalcohol
The generally polyether triol or polyether tetrols of high hydroxyl value, wherein the hydroxyl value (OHZ) of polyalcohol is 250-450mg KOH/g, preferably
For 300-400mg KOH/g.
The resin for restoration for the point reparation of no-dig technique pipeline that the present invention designs and develops, has very at room temperature
Low viscosity, to ensure the abundant infiltration of reinforcing material, and it is after blending to having long enough between sized reinforcing fibres
Process time.
The present invention also provides a kind of preparation methods of resin for restoration for no-dig technique pipeline point reparation, comprising: takes weight
Amount is placed in open-top receptacle than the component A and B component for being 0.4-0.7:1, and at 0-40 DEG C, stirring 1-4min is uniform to color,
No color differnece striped.
In another embodiment, preferably at 10-30 DEG C, stirring 1-4min is uniform to color, no color differnece striped.
Specifically, the resin for restoration prepared by the present invention for being used for no-dig technique pipeline point reparation is applied to no-dig technique pipe
The local route repair in road illustrates the excellent performance of dual-component polyurethane base organic/inorganic compound resin prepared by the present invention.
Its principle are as follows:
The end NCO group of urethane monomer in B component, polyurethane prepolymer and polyurethane resin with it is molten in A component
The reaction of agent water generates polyurethane-polyurea and discharges CO2Gas, the CO of generation2Gas just can be used as consolidating for component A silicate resin
Agent, with the progress of silicate resin carburizing reagent, amount of silica gel increases in system, and continuous heat release, Silicagel dehydration are formed
SiO2Cross-linked structure, inorganic phase SiO2It is mutually interspersed with organic phase polyurethane-polyurea, close space network is formed, is cooperated
Fabric can prepare high intensity, and high-modulus simultaneously has relatively strong no-dig technique pipeline point composition for repairing flexible,
Working principle reaction equation such as formula (I).
No-dig technique pipeline rehabilitation resin and its composite material are further elaborated below in conjunction with specific implementation case.
However, it is understood that the scope of the present invention is not limited by these case study on implementation.
Component A raw material:
Aqueous silicic acid sodium resin: Baume degrees is 40-55 ° of B é, modulus 1.8-2.8M；
B component raw material:
Isocyanate-monomer 1: modified MDI, NCO%:28-30%, viscosity: 25 DEG C of 25-60mPas@；
Isocyanate-monomer 2: thick MDI, NCO%:30-32%, viscosity: 25 DEG C of 100-300mPas@；
Polyurethane prepolymer 1: after isocyanate-monomer 1 is mixed with isocyanate-monomer 2 with 3:7, under the conditions of 80 DEG C,
It reacts and is made with polyetherdiol (hydroxyl value is 145-155mg KOH/g)；
Polyurethane prepolymer 2: isocyanate-monomer 2 is under the conditions of 80 DEG C, with polyetherdiol (hydroxyl value 265-295mg
KOH/g) and polyether triol (hydroxyl value is 158-178mg KOH/g) reaction is made；
Catalyst: triethylenediamine
Fire retardant 1: three (2- chloroethyl) phosphate；
Fire retardant 2: three (two chloropropyls) phosphate
Fire retardant 3: isopropylated triphenyl phosphates；
Plasticizer: dioctyl phthalate；
Reinforcing material: glass fibre woven roving composite felt, specification 1050g/m2。
Listed raw material in B component is mixed according to table 2, after mixing, is used B component and component A according to volume ratio 2:1
Blender mixing 1-4min is uniform to color, no color differnece striped.With scraper by the mixed compound tree of polyurethane organic/inorganic
Rouge is scratched by 1 dosage relation of table and is wrapped in reparation air bag behind each face of glass fibre woven roving composite felt, infiltration completely
On, it is then sent in pipeline to be repaired, after inflating constant pressure to resin solidification, removes air bag, non-open is can be obtained into pipe layers removing
Digging pipeline point repair materials, sample detecting, concrete outcome are as shown in table 2.
2 no-dig technique pipeline point repair materials raw material of table and related mechanical property
Illustrated by above embodiments, it will be obtained after the infiltration reinforcing material solidification of polyurethane organic/inorganic compound resin
No-dig technique pipeline point resin for restoration has good mechanical property.
There is medium reactivity, isocyanates and A group in B component after the mixing of polyurethane organic/inorganic compound resin
After water reaction in point, high concentration CO is released2Solidify for silicate resin, forms the repair materials energy of cross-linked network
In the short time or slightly for a long time by broken pipe reparation to ne-leakage, tube performance is maintained, speed of application is fast, high-efficient.
Compared to unsaturated-resin used in the in-situ solidifying method (CIPP) in whole repair, polyurethane organic/inorganic
Compound resin is solvent-free, without volatile flammable solvents such as styrene, belongs to environment protection pipe repair materials；
Enhance system compared to unsaturated-resin-non-woven fabrics used in the in-situ solidifying method (CIPP) in whole repair,
The polyurethane organic/inorganic compound resin that the present invention uses can form the reticular structure of high crosslink density, and it is compound to be equipped with woven roving
Felt is compressed it using reparation air bag as enhancing carrier and is fitted in broken pipe inner wall, and high bond strength can be formed,
High bending strength, the repair materials of high bending modulus；
The preparation method for the resin for restoration for the point reparation of no-dig technique pipeline that the present invention designs and develops, can be
Construction site makes on the spot, can rapid curing, construction efficiency are high at room temperature after being sent into pipeline to be repaired.Meanwhile it managing
Even if there is a small amount of water in road, the solidification and intensity of resin are nor affected on；Polyurethane organic/inorganic compound resin wetting fibre
Afterwards, it is tightly fitted in broken pipe inner wall under repairing air bag compression, enhances the resistance to compression resisting breakage performance of former pipeline.
Although the embodiments of the present invention have been disclosed as above, but its institute not only in the description and the implementation
Column use, it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can hold
It changes places and realizes other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously
It is not limited to specific details and embodiment shown and described herein.
Claims (10)
1. a kind of no-dig technique pipeline point restorative procedure based on two-component resin for restoration, which comprises the following steps:
It is put on glass fiber composite mat Step 1: two-component resin for restoration is equably scraped after mixing, it then will infiltration
The glass fiber composite mat of resin winds and is fixed on repairing air bag；
Step 2: the repairing air bag is sent to pipeline, and the glass fiber composite mat of the infiltration resin is accurately fixed
Position is in piping failure position；
Step 3: being inflated to required pressure value for the repairing air bag, pasting the glass fiber composite mat of the infiltration resin
It closes in broken pipe inner wall；
Step 4: keeping the repairing air bag pressure constant, until resin solidification is complete, point repairing composite material is formed；
Step 5: taking out pipeline, completing the point reparation repairing release to normal pressure.
2. the no-dig technique pipeline point restorative procedure according to claim 1 based on two-component resin for restoration, feature exist
In the two-component resin for restoration includes:
Component A: aqueous silicic acid salt resin；
B component: urethane monomer: 0-50wt.%, polyurethane prepolymer and polyurethane resin: 0-60wt.%, functional aid:
0-50wt.%；
Wherein, the end functional group of urethane monomer in the B component, polyurethane prepolymer and polyurethane resin is isocyanic acid
Base, and the weight percent of the isocyanate group is 10%-35%；
Wherein, the weight ratio of the component A and the B component are as follows: 0.4-0.7:1.
3. the no-dig technique pipeline point restorative procedure according to claim 2 based on two-component resin for restoration, feature exist
In,
The urethane monomer is aromatic diisocyanate, aromatic polyisocyanate and its autohemagglutination homologue and its mixing
Object, and the viscosity at 25 DEG C is less than or equal to 300mPas.
4. the no-dig technique pipeline point restorative procedure according to claim 1 based on two-component resin for restoration, feature exist
In,
Before the step 1, needs to carry out following preparation: drawing water and clean pipe using site inspection, pipe plugging
The methods of wall is treated pipe-repairing and is detected, and determines damage location and line size to be repaired；Then according to pipeline to be repaired
Size determines the size of glass fiber composite mat.
5. the no-dig technique pipeline point restorative procedure according to claim 4 based on two-component resin for restoration, feature exist
In,
The two-component resin for restoration total volume dosage is 1.6 times of glass fibre woven roving composite felt area；
The dosage volume ratio of component A and B component is 1:2 in the two-component resin for restoration.
6. the no-dig technique pipeline point restorative procedure according to claim 5 based on two-component resin for restoration, feature exist
In pinpoint method specifically includes in the step 2:
After the repairing air bag is sent into pipeline, operator is sent air bag is repaired to pipeline using inflation push pipe, and with
CCTV video camera operator carries out intercommunication communication, and repairing air bag is accurately located at piping failure position.
7. the no-dig technique pipeline point restorative procedure according to claim 6 based on two-component resin for restoration, feature exist
In the method inflated in the step 3 are as follows:
Air compressor machine equipped with pressure gauge is connected with the special purpose interface of inflation push pipe, is inflated to required pressure for the repairing air bag
Value.
8. the no-dig technique pipeline point restorative procedure according to claim 3 based on two-component resin for restoration, feature exist
In,
The polyurethane prepolymer and polyurethane resin are by or mixtures thereof urethane monomer and first kind polyalcohol addition polymerization
Reaction obtains.
9. the no-dig technique pipeline point restorative procedure according to claim 8 based on two-component resin for restoration, feature exist
In,
The functional aid includes catalyst, fire retardant and plasticizer；
Wherein, the catalyst is tertiary amine catalyst, and the fire retardant is additive flame retardant,
The plasticizer is aliphatic diacid ester or aromatic diacid ester.
10. the no-dig technique pipeline point restorative procedure according to claim 9 based on two-component resin for restoration, feature exist
In,
The aqueous silicic acid salt resin is aqueous silicic acid sodium resin or aqueous silicic acid potassium resin；Contain appropriate the in the component A
Two class polyalcohols；Viscosity of the component A at 25 DEG C is 300-650mPas.
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Application publication date: 20190607 |