CN111907132A - 4A type molecular sieve modified photocuring pipeline repair lining material and processing technology - Google Patents
4A type molecular sieve modified photocuring pipeline repair lining material and processing technology Download PDFInfo
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- CN111907132A CN111907132A CN202010738447.4A CN202010738447A CN111907132A CN 111907132 A CN111907132 A CN 111907132A CN 202010738447 A CN202010738447 A CN 202010738447A CN 111907132 A CN111907132 A CN 111907132A
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- molecular sieve
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- 239000000463 material Substances 0.000 title claims abstract description 82
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 78
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000000016 photochemical curing Methods 0.000 title claims abstract description 57
- 238000005516 engineering process Methods 0.000 title claims abstract description 42
- 230000008439 repair process Effects 0.000 title claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 90
- 239000011347 resin Substances 0.000 claims abstract description 90
- 239000012452 mother liquor Substances 0.000 claims abstract description 62
- 239000004744 fabric Substances 0.000 claims abstract description 46
- 239000003365 glass fiber Substances 0.000 claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 238000002834 transmittance Methods 0.000 claims abstract description 14
- 239000004593 Epoxy Substances 0.000 claims description 49
- 239000012528 membrane Substances 0.000 claims description 45
- 238000005470 impregnation Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 23
- 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 18
- 238000005507 spraying Methods 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 12
- 238000004073 vulcanization Methods 0.000 claims description 11
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical group N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 235000012424 soybean oil Nutrition 0.000 claims description 6
- 239000003549 soybean oil Substances 0.000 claims description 6
- 239000002759 woven fabric Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000003999 initiator Substances 0.000 claims description 4
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 3
- 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 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- 238000007872 degassing Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000001723 curing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
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- B32B1/00—Layered products having a non-planar shape
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/002—Dendritic macromolecules
- C08G83/005—Hyperbranched macromolecules
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
- F16L55/1654—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section and being inflated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
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- B32B2260/04—Impregnation, embedding, or binder material
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- B32B2307/40—Properties of the layers or laminate having particular optical properties
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Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a 4A type molecular sieve modified photocuring pipeline repair lining material and a processing technology, wherein the photocuring pipeline repair lining material is formed by sequentially coating an ultraviolet-proof film, a resin isolation film, a vacuum introduction isolation film, a glass fiber axial braided fabric, a waterproof lining braided fabric and a high-light-transmittance film and is obtained by impregnating resin mother liquor.
Description
Technical Field
The invention relates to the technical field of pipeline repairing materials, in particular to a 4A type molecular sieve modified photocuring pipeline repairing lining material and a processing technology thereof.
Background
The ultraviolet light cured non-excavation repairing technology is a pipeline whole-section lining repairing technology which adopts mechanical traction to drag a felt hose which is soaked in photosensitive resin into a repaired pipeline, fills compressed air to enable the felt hose to be tightly attached to the inner wall of the pipeline, and enables the resin to be cured inside the pipeline through irradiation of an ultraviolet light lamp to form a high-strength lining resin new pipe.
In the prior art, various conventional unsaturated polyester resins, polyurethane resins or epoxy acrylic resins are compounded with glass fiber axial weaves, polymerization is initiated by a photoinitiator under the action of ultraviolet light (including light sources such as mercury lamps and LEDs), and deep vulcanization is carried out by a thermal initiator to finally form the photocuring pipeline repairing lining material with different physical indexes, bending moduli and tensile moduli so as to meet the requirements of various modern working conditions. However, since the resin has a relatively obvious fluidity, which has a relatively obvious influence on the handling and transportation of the product, how to slip-casting with low viscosity and convert to high viscosity still remains a significant challenge in the industry.
The phase transformation of the resin is mainly realized by fillers such as thixotropic agents in the prior art, but the fillers have various uncontrollable factors for changing the performance of the whole material, such as uneven mixing and the like, and also set a plurality of obstacles for improving the production process.
Disclosure of Invention
The invention aims at the problems and discloses a 4A type molecular sieve modified photocuring pipeline repair lining material and a processing technology thereof.
The specific technical scheme is as follows:
A4A type molecular sieve modified photocuring pipeline repairing lining material and a processing technology thereof are characterized in that the photocuring pipeline repairing lining material is formed by sequentially coating an ultraviolet-proof membrane, a resin isolating membrane, a vacuum leading-in isolating membrane, a glass fiber axial braided fabric, a waterproof lining braided fabric and a high-light-transmittance film, and is configured according to a ring-packed circular pipeline, wherein the section of the circular pipeline is sequentially provided with the ultraviolet-proof membrane, the resin isolating membrane, the vacuum leading-in isolating membrane, the glass fiber axial braided fabric, the waterproof lining braided fabric and the high-light-transmittance film from outside to inside;
the glass fiber axial braided fabric is impregnated by hyperbranched epoxy light-cured resin mother liquor.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are characterized in that the hyperbranched epoxy photocuring resin mother liquor comprises the following components in parts by weight:
and adding the components into a mixing container according to the parts by weight, and fully mixing to obtain the hyperbranched epoxy photocuring resin mother liquor.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are disclosed, wherein the photoinitiator is one or more of a photoinitiator 184 or an initiator 1173.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are characterized in that the vulcanization auxiliary agent is azobisisobutyronitrile and derivatives thereof or benzoyl peroxide and derivatives thereof.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are disclosed, wherein the processing technology of the photocuring pipeline repair lining material comprises the following specific steps:
(a1) molecular sieve spraying: sequentially coating the high-light-transmittance film, the waterproof lining braided fabric and the glass fiber axial braided fabric from inside to outside, and spraying a molecular sieve on the outer surface of the glass fiber axial braided fabric through a particle spraying device after the glass fiber axial braided fabric is coated;
(a2) lining of a molecular sieve: after the molecular sieve is uniformly sprayed and dried, introducing vacuum into an isolating membrane, a resin isolating membrane and an ultraviolet-proof membrane, and sequentially coating the isolating membrane, the resin isolating membrane and the ultraviolet-proof membrane from inside to outside and the glass fiber axial woven fabric to obtain a molecular sieve lining dry material;
(a3) preparing resin mother liquor: adding phenolic epoxy acrylate, bisphenol A epoxy acrylate, a soybean oil modified epoxy acrylate photoinitiator, a vulcanization aid, a siloxane surface aid and an acrylate monomer into a mixing container according to parts by weight, and fully mixing to obtain a hyperbranched epoxy light-cured resin mother liquor for later use;
(a4) resin impregnation: the viscosity of the hyperbranched epoxy light-cured resin mother liquor obtained in the step (a3) at room temperature is 5000-12000 mPa.s, when the temperature is raised to 50 ℃, the viscosity is reduced to 2000-5000 mPa.s, and the hyperbranched epoxy light-cured resin mother liquor is injected by an RTM vacuum introduction technology;
firstly, vacuumizing a molecular sieve lining dry material to ensure that the vacuum degree is not higher than 0.2 MPa; then, injecting hyperbranched epoxy light-cured resin mother liquor between the molecular sieve lining dry material layers at 50 ℃ to ensure that the glass fiber is axially impregnated into the braided fabric, wherein the injection rate of the hyperbranched epoxy light-cured resin mother liquor is 0.1-10 kg/min, the injection time is not more than 2h, and after the injection is finished, the light-cured pipeline repairing lining material is obtained;
(a5) and (4) constant-temperature preservation: after resin impregnation is finished, the obtained light-cured pipeline repairing lining material is stored at the constant temperature and in a dark place at the temperature of 35 ℃.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are characterized in that in the step (a1) of spraying the molecular sieve, the mass of the sprayed molecular sieve is 1-10% of that of the axial glass fiber woven fabric.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are characterized in that a filter screen is arranged at a nozzle of the particle injection device in the step (a1) and is used for uniformly spraying the molecular sieve.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are disclosed, wherein the processing technology of the photocuring pipeline repair lining material comprises the following specific steps:
(b1) preparing resin mother liquor: adding phenolic epoxy acrylate, bisphenol A epoxy acrylate, a soybean oil modified epoxy acrylate photoinitiator, a vulcanization aid, a siloxane surface aid and an acrylate monomer into a mixing container according to parts by weight, and fully mixing to obtain a hyperbranched epoxy light-cured resin mother liquor for later use;
(b2) preparation of resin mother liquor: adding a molecular sieve into the hyperbranched epoxy photocuring resin mother liquor obtained in the step (b1), and fully mixing to obtain hyperbranched epoxy photocuring resin modified mother liquor;
(b3) glass fiber axial braid impregnation: at the temperature of 20 ℃, the glass fiber axial braided fabric is placed in the hyperbranched epoxy light-cured resin modified mother liquor for full impregnation, and the impregnation time is not less than 48 h;
(b4) coating the inner liner: sequentially coating a high-light-transmittance film, a waterproof lining braided fabric, a glass fiber axial braided fabric subjected to impregnation, a vacuum introduction isolating membrane, a resin isolating membrane and an ultraviolet-proof membrane from inside to outside to obtain a lining material;
(b5) and (3) dipping again for degassing: continuously injecting the hyperbranched epoxy light-cured resin modified mother liquor into the lining material obtained in the step (b4) by using an RTM vacuum introduction technology;
firstly, vacuumizing the lining material to ensure that the vacuum degree is not higher than 0.2 MPa; then, injecting hyperbranched epoxy light-cured resin modified mother liquor into the interlayer of the inner lining dry material at 50 ℃ to ensure that the glass fiber axial braided fabric is impregnated again and air in the inner lining material is completely removed, wherein the injection rate of the hyperbranched epoxy light-cured resin modified mother liquor is 0.1-10 kg/min, and the injection time is not more than 2h, thus obtaining the light-cured pipeline repairing lining material;
(b6) and (4) constant-temperature preservation: and (b5) after the step (b) is finished, storing the obtained light-cured pipeline repairing lining material at a constant temperature and in a dark place at the temperature of 35 ℃.
The 4A type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are disclosed, wherein the molecular sieve is a 4A type molecular sieve.
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof are characterized in that in the steps (b2) and (b5), the room-temperature viscosity of the hyperbranched epoxy photocuring resin modified mother liquor is 5000-12000 mPa.s, and when the temperature is raised to 50 ℃, the viscosity is reduced to 2000-5000 mPa.s.
The invention has the beneficial effects that:
the invention discloses a 4A type molecular sieve modified photocuring pipeline repair lining material and a processing technology thereof, the photocuring pipeline repair lining material is formed by sequentially coating an ultraviolet-proof film, a resin isolation film, a vacuum introduction isolation film, a glass fiber axial braided fabric, a waterproof lining braided fabric and a high-light-transmittance film and is obtained by resin mother liquor impregnation.
Detailed Description
In order to make the technical solution of the present invention clearer and clearer, the present invention is further described below with reference to embodiments, and any solution obtained by substituting technical features of the technical solution of the present invention with equivalents and performing conventional reasoning falls within the scope of the present invention.
Example one
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology are characterized in that the photocuring pipeline repair lining material is formed by sequentially coating an ultraviolet-proof membrane, a resin isolating membrane, a vacuum introduction isolating membrane, a glass fiber axial braided fabric, a waterproof lining braided fabric and a high-light-transmittance film, is configured according to a ring-shaped circular pipeline, and sequentially comprises the ultraviolet-proof membrane, the resin isolating membrane, the vacuum introduction isolating membrane, the glass fiber axial braided fabric, the waterproof lining braided fabric and the high-light-transmittance film from outside to inside in cross section;
the glass fiber axial braided fabric is impregnated by hyperbranched epoxy light-cured resin mother liquor;
the hyperbranched epoxy light-cured resin mother liquor comprises the following components in parts by weight:
adding the components into a mixing container according to parts by weight, and fully mixing to obtain hyperbranched epoxy photocuring resin mother liquor;
the photoinitiator is one or more of photoinitiator 184 or initiator 1173, and the vulcanization auxiliary agent is azobisisobutyronitrile and derivatives thereof or benzoyl peroxide and derivatives thereof;
in the embodiment, the formation of the hyperbranched resin is promoted by the photo-initiation effect of the photoinitiator and the thermal initiation effect of the vulcanization assistant, so that the ultraviolet curing effect is achieved.
Example two
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof disclosed by the embodiment of the invention are characterized in that the processing technology of the photocuring pipeline repair lining material comprises the following specific steps:
(a1) molecular sieve spraying: sequentially coating the high-light-transmittance film, the waterproof lining braided fabric and the glass fiber axial braided fabric from inside to outside, and spraying a molecular sieve on the outer surface of the glass fiber axial braided fabric through a particle spraying device after the glass fiber axial braided fabric is coated;
(a2) lining of a molecular sieve: after the molecular sieve is uniformly sprayed and dried, introducing vacuum into an isolating membrane, a resin isolating membrane and an ultraviolet-proof membrane, and sequentially coating the isolating membrane, the resin isolating membrane and the ultraviolet-proof membrane from inside to outside and the glass fiber axial woven fabric to obtain a molecular sieve lining dry material;
(a3) preparing resin mother liquor: adding phenolic epoxy acrylate, bisphenol A epoxy acrylate, a soybean oil modified epoxy acrylate photoinitiator, a vulcanization aid, a siloxane surface aid and an acrylate monomer into a mixing container according to parts by weight, and fully mixing to obtain a hyperbranched epoxy light-cured resin mother liquor for later use;
(a4) resin impregnation: the viscosity of the hyperbranched epoxy light-cured resin mother liquor obtained in the step (a3) at room temperature is 5000-12000 mPa.s, when the temperature is raised to 50 ℃, the viscosity is reduced to 2000-5000 mPa.s, and the hyperbranched epoxy light-cured resin mother liquor is injected by an RTM vacuum introduction technology;
firstly, vacuumizing a molecular sieve lining dry material to ensure that the vacuum degree is not higher than 0.2 MPa; then, injecting hyperbranched epoxy light-cured resin mother liquor between the molecular sieve lining dry material layers at 50 ℃ to ensure that the glass fiber is axially impregnated into the braided fabric, wherein the injection rate of the hyperbranched epoxy light-cured resin mother liquor is 0.1-10 kg/min, the injection time is not more than 2h, and after the injection is finished, the light-cured pipeline repairing lining material is obtained;
(a5) and (4) constant-temperature preservation: after resin impregnation is finished, storing the obtained light-cured pipeline repairing lining material at a constant temperature and in a dark place at the temperature of 35 ℃;
wherein, in the step (a1) of spraying the molecular sieve, the mass of the sprayed molecular sieve is 1% -10% of the mass of the axial woven fabric of the glass fiber, a filter screen is arranged at a nozzle of the particle spraying device and used for uniformly spraying the molecular sieve, and the molecular sieve is a 4A type molecular sieve.
In the embodiment, the molecular sieve is preferentially sprayed, the molecular sieve is used as a core catalyst, and the adsorption capacity and the adsorption heat release capacity of the 4A type molecular sieve on the small molecular organic matters are utilized, so that the resin mother liquor is subjected to photo-initiated curing at the efficiency of nearly 100%, the curing efficiency is high, the effect is good, and the toughness of the lining material can be effectively improved; and based on the absorption heat release, the photocuring efficiency is improved, the curing rate and the physical property of the lining material are improved, the volatilization of low-boiling-point components can be reduced, the harm of construction environment to constructors is reduced, and the secondary pollution to the environment is stopped from the source. Meanwhile, the cured 4A type molecular sieve modified photocuring repaired pipeline has both epoxy resin pipeline repair capacity and relevant characteristics of the 4A type molecular sieve, namely has good corrosion resistance to strong acid (pH <1), strong base (pH >13) and high-concentration brine, and has good decontamination capacity, so that relevant substances are not easy to deposit in the pipeline, and meanwhile, the cured 4A type molecular sieve modified photocuring repaired pipeline also has good oil stain adhesion force, and can prevent oil stains from being adhered to the pipeline.
EXAMPLE III
The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof disclosed by the embodiment of the invention are characterized in that the processing technology of the photocuring pipeline repair lining material comprises the following specific steps:
(b1) preparing resin mother liquor: adding phenolic epoxy acrylate, bisphenol A epoxy acrylate, a soybean oil modified epoxy acrylate photoinitiator, a vulcanization aid, a siloxane surface aid and an acrylate monomer into a mixing container according to parts by weight, and fully mixing to obtain a hyperbranched epoxy light-cured resin mother liquor for later use;
(b2) preparation of resin mother liquor: adding a molecular sieve into the hyperbranched epoxy photocuring resin mother liquor obtained in the step (b1), and fully mixing to obtain hyperbranched epoxy photocuring resin modified mother liquor;
(b3) glass fiber axial braid impregnation: at the temperature of 20 ℃, the glass fiber axial braided fabric is placed in the hyperbranched epoxy light-cured resin modified mother liquor for full impregnation, and the impregnation time is not less than 48 h;
(b4) coating the inner liner: sequentially coating a high-light-transmittance film, a waterproof lining braided fabric, a glass fiber axial braided fabric subjected to impregnation, a vacuum introduction isolating membrane, a resin isolating membrane and an ultraviolet-proof membrane from inside to outside to obtain a lining material;
(b5) and (3) dipping again for degassing: continuously injecting the hyperbranched epoxy light-cured resin modified mother liquor into the lining material obtained in the step (b4) by using an RTM vacuum introduction technology;
firstly, vacuumizing the lining material to ensure that the vacuum degree is not higher than 0.2 MPa; then, injecting hyperbranched epoxy light-cured resin modified mother liquor into the interlayer of the inner lining dry material at 50 ℃ to ensure that the glass fiber axial braided fabric is impregnated again and air in the inner lining material is completely removed, wherein the injection rate of the hyperbranched epoxy light-cured resin modified mother liquor is 0.1-10 kg/min, and the injection time is not more than 2h, thus obtaining the light-cured pipeline repairing lining material;
(b6) and (4) constant-temperature preservation: after the step (b5) is finished, storing the obtained photocuring pipeline repairing lining material at the constant temperature of 35 ℃ in a dark place;
wherein the molecular sieve is a 4A type molecular sieve, in the steps (b2) and (b5), the room-temperature viscosity of the hyperbranched epoxy photocuring resin modified mother liquor is 5000-12000 mPa.s, and when the temperature is raised to 50 ℃, the viscosity is reduced to 2000-5000 mPa.s;
the embodiment is similar to the second embodiment, and the difference is that the adding time of the molecular sieve is similar to that of the second embodiment, the molecular sieve in the embodiment is added in a mother liquor modification mode, and the method has the advantages that a spraying process is replaced by a mixing mode, so that the process treatment is simplified, the glass fiber is subjected to secondary impregnation, the impregnation effect is better, and the gas residue is less, so that the curing rate and the physical property of the lining material are better, the toughness of the cured 4A type molecular sieve modified photocuring repair pipeline is better, and the epoxy resin pipeline repair capability and the relevant characteristics of the 4A type molecular sieve are more outstanding;
however, it should be noted that when the first impregnation is performed, the impregnation temperature needs to be strictly controlled to prevent the volatilization of the low boiling point components, which causes pollution to the construction environment and harms the health of the constructors.
In conclusion, the invention has reasonable design and novel method, takes the molecular sieve as the core catalyst, and utilizes the adsorption capacity and the adsorption heat release capacity of the 4A type molecular sieve on the small molecular organic matters to ensure that the resin mother liquor is photo-initiated to be cured with the efficiency close to 100 percent, and the invention has the advantages of high curing efficiency, good effect, high toughness, excellent physical property, restoration capability, corrosion resistance and decontamination capability.
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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A4A type molecular sieve modified photocuring pipeline repairing lining material and a processing technology thereof are characterized in that the photocuring pipeline repairing lining material is formed by sequentially coating an ultraviolet-proof membrane, a resin isolating membrane, a vacuum leading-in isolating membrane, a glass fiber axial braided fabric, a waterproof lining braided fabric and a high-light-transmittance film, and is configured according to a ring-packed circular pipeline, wherein the section of the circular pipeline is sequentially provided with the ultraviolet-proof membrane, the resin isolating membrane, the vacuum leading-in isolating membrane, the glass fiber axial braided fabric, the waterproof lining braided fabric and the high-light-transmittance film from outside to inside;
the glass fiber axial braided fabric is impregnated by hyperbranched epoxy light-cured resin mother liquor.
2. The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof according to claim 1, wherein the hyperbranched epoxy photocuring resin mother liquor comprises the following components in parts by weight:
and adding the components into a mixing container according to the parts by weight, and fully mixing to obtain the hyperbranched epoxy photocuring resin mother liquor.
3. The repair lining material for pipeline and the processing technology thereof according to claim 2, wherein the photoinitiator is one or more of photoinitiator 184 or initiator 1173.
4. The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof as claimed in claim 2, wherein the vulcanization assistant is azobisisobutyronitrile and derivatives thereof or benzoyl peroxide and derivatives thereof.
5. The photocuring pipeline repair lining material modified by the 4A-type molecular sieve and the processing technology thereof as claimed in claim 2, wherein the processing technology of the photocuring pipeline repair lining material comprises the following specific steps:
(a1) molecular sieve spraying: sequentially coating the high-light-transmittance film, the waterproof lining braided fabric and the glass fiber axial braided fabric from inside to outside, and spraying a molecular sieve on the outer surface of the glass fiber axial braided fabric through a particle spraying device after the glass fiber axial braided fabric is coated;
(a2) Lining of a molecular sieve: after the molecular sieve is uniformly sprayed and dried, introducing vacuum into an isolating membrane, a resin isolating membrane and an ultraviolet-proof membrane, and sequentially coating the isolating membrane, the resin isolating membrane and the ultraviolet-proof membrane from inside to outside and the glass fiber axial woven fabric to obtain a molecular sieve lining dry material;
(a3) Preparing resin mother liquor: adding phenolic epoxy acrylate, bisphenol A epoxy acrylate, a soybean oil modified epoxy acrylate photoinitiator, a vulcanization aid, a siloxane surface aid and an acrylate monomer into a mixing container according to parts by weight, and fully mixing to obtain a hyperbranched epoxy light-cured resin mother liquor for later use;
(a4) Resin impregnation: the viscosity of the hyperbranched epoxy light-cured resin mother liquor obtained in the step (a3) at room temperature is 5000-12000 mPa.s, when the temperature is raised to 50 ℃, the viscosity is reduced to 2000-5000 mPa.s, and the hyperbranched epoxy light-cured resin mother liquor is injected by an RTM vacuum introduction technology;
firstly, vacuumizing a molecular sieve lining dry material to ensure that the vacuum degree is not higher than 0.2 MPa; then, injecting hyperbranched epoxy light-cured resin mother liquor between the molecular sieve lining dry material layers at 50 ℃ to ensure that the glass fiber is axially impregnated into the braided fabric, wherein the injection rate of the hyperbranched epoxy light-cured resin mother liquor is 0.1-10 kg/min, the injection time is not more than 2h, and after the injection is finished, the light-cured pipeline repairing lining material is obtained;
(a5) And (4) constant-temperature preservation: after resin impregnation is finished, the obtained light-cured pipeline repairing lining material is stored at the constant temperature and in a dark place at the temperature of 35 ℃.
6. The repair lining material for pipelines and the processing technology according to claim 5, wherein in the step (a1), the mass of the molecular sieve is 1-10% of that of the axial woven fabric of glass fiber.
7. The repair lining material for pipes and process according to claim 6, wherein the particle spraying device of step (a1) has a screen at the nozzle for uniform spraying of the molecular sieve.
8. The photocuring pipeline repair lining material modified by the 4A-type molecular sieve and the processing technology thereof as claimed in claim 2, wherein the processing technology of the photocuring pipeline repair lining material comprises the following specific steps:
(b1) preparing resin mother liquor: adding phenolic epoxy acrylate, bisphenol A epoxy acrylate, a soybean oil modified epoxy acrylate photoinitiator, a vulcanization aid, a siloxane surface aid and an acrylate monomer into a mixing container according to parts by weight, and fully mixing to obtain a hyperbranched epoxy light-cured resin mother liquor for later use;
(b2) Preparation of resin mother liquor: adding a molecular sieve into the hyperbranched epoxy photocuring resin mother liquor obtained in the step (b1), and fully mixing to obtain hyperbranched epoxy photocuring resin modified mother liquor;
(b3) Glass fiber axial braid impregnation: at the temperature of 20 ℃, the glass fiber axial braided fabric is placed in the hyperbranched epoxy light-cured resin modified mother liquor for full impregnation, and the impregnation time is not less than 48 h;
(b4) Coating the inner liner: sequentially coating a high-light-transmittance film, a waterproof lining braided fabric, a glass fiber axial braided fabric subjected to impregnation, a vacuum introduction isolating membrane, a resin isolating membrane and an ultraviolet-proof membrane from inside to outside to obtain a lining material;
(b5) And (3) dipping again for degassing: continuously injecting the hyperbranched epoxy light-cured resin modified mother liquor into the lining material obtained in the step (b4) by using an RTM vacuum introduction technology;
firstly, vacuumizing the lining material to ensure that the vacuum degree is not higher than 0.2 MPa; then, injecting hyperbranched epoxy light-cured resin modified mother liquor into the interlayer of the inner lining dry material at 50 ℃ to ensure that the glass fiber axial braided fabric is impregnated again and air in the inner lining material is completely removed, wherein the injection rate of the hyperbranched epoxy light-cured resin modified mother liquor is 0.1-10 kg/min, and the injection time is not more than 2h, thus obtaining the light-cured pipeline repairing lining material;
(b6) And (4) constant-temperature preservation: and (b5) after the step (b) is finished, storing the obtained light-cured pipeline repairing lining material at a constant temperature and in a dark place at the temperature of 35 ℃.
9. The type 4A molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof as claimed in claims 5 and 8, wherein the molecular sieve is a type 4A molecular sieve.
10. The 4A-type molecular sieve modified photocuring pipeline repair lining material and the processing technology thereof as claimed in claim 8, wherein in steps (b2) and (b5), the room temperature viscosity of the hyperbranched epoxy photocuring resin modified mother liquor is 5000-12000 mPa.s, and when the temperature is raised to 50 ℃, the viscosity is reduced to 2000-5000 mPa.s.
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