CN110396279B - Water-based self-breathing consolidation material for pavement sealing layer and preparation method thereof - Google Patents
Water-based self-breathing consolidation material for pavement sealing layer and preparation method thereof Download PDFInfo
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- CN110396279B CN110396279B CN201910701010.0A CN201910701010A CN110396279B CN 110396279 B CN110396279 B CN 110396279B CN 201910701010 A CN201910701010 A CN 201910701010A CN 110396279 B CN110396279 B CN 110396279B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000000463 material Substances 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000007596 consolidation process Methods 0.000 title claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 66
- 239000003822 epoxy resin Substances 0.000 claims abstract description 46
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 46
- 238000010521 absorption reaction Methods 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 14
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 10
- 239000007822 coupling agent Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- -1 polysiloxane Polymers 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 238000004382 potting Methods 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 125000003700 epoxy group Chemical group 0.000 claims description 6
- 239000012760 heat stabilizer Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 5
- 239000011496 polyurethane foam Substances 0.000 claims description 5
- 241000609240 Ambelania acida Species 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010905 bagasse Substances 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 235000011132 calcium sulphate Nutrition 0.000 claims description 2
- 235000019241 carbon black Nutrition 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 231100000956 nontoxicity Toxicity 0.000 abstract description 2
- 239000003086 colorant Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 38
- 238000012360 testing method Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses an aqueous self-breathing bonding material for a TIT embedding sealing layer and a preparation method thereof, wherein the aqueous bonding material comprises the following components: the water-based epoxy curing agent, the epoxy resin emulsion, the waste with low water absorption, the pigment and filler, the stabilizer, the flatting agent and the defoaming agent, the hardness of the embedded sealing layer is more than 2H after the water-based self-breathing consolidation material is cured, the drawing strength is more than 1.5MPa, and the pendulum friction value is more than or equal to 75. The water-based consolidation material has the advantages of self-breathing property, water resistance, no toxicity, no combustion, safe use, high hardness, strong adhesive force, wear resistance, long service life and the like, is convenient for mechanical spraying and rapid construction, can be used for TIT (triangulated irregular T) embedding sealing layers in occasions such as roads, bridges, tunnels and the like, and can also be used for floor materials with various colors indoors and outdoors.
Description
Technical Field
The invention belongs to the field of road binding materials, and particularly relates to an aqueous self-breathing binding material for a TIT embedding sealing layer and a preparation method thereof.
Background
TIT is an acronym for embedded Thermosetting Technology (english), and embedding is an abbreviation for embedded Thermosetting Technology. The TIT embedding sealing layer is a pavement surface treatment sealing layer formed by synchronously spraying a binding material and an anti-skid aggregate on a pavement by adopting an embedding sealing layer spraying vehicle and naturally drying.
The TIT sealing layer mainly adopts water-based epoxy resin curing material at present, and the water-based epoxy resin refers to a stable dispersion system obtained by dispersing the epoxy resin in the form of particles or liquid drops in a dispersion medium taking water as a continuous phase by a physical or chemical method. Compared with the traditional epoxy resin, the waterborne epoxy resin not only can meet the requirement of current environmental protection, but also has better operation performance, and particularly can be matched with other waterborne materials for use, thereby achieving the purposes of mutually compensating and fully playing respective performances. The water-borne epoxy resin has the outstanding advantages that the water-borne epoxy resin can be cured at room temperature and in a humid environment, has reasonable curing time and has higher crosslinking density.
At present, a compact film can be formed after curing and drying the waterborne epoxy resin used by the TIT embedding seal layer, so that the moisture on the road surface can be ensured to be prevented from permeating into the lower part of the road surface to play a role in protection, but the water vapor below the waterborne epoxy resin compact film can not permeate through the film, so that the underground water vapor generates bubbles, expands and the like to cause the phenomenon of shelling of the TIT embedding seal layer, cause the failure of the TIT embedding seal layer in a short time, and greatly reduce the service time. In order to prevent the TIT embedding layer from falling off and peeling easily, the development of an aqueous self-breathing binding material for the TIT embedding layer is urgently needed.
Disclosure of Invention
The invention aims to provide an aqueous self-breathing bonding material for a TIT embedding sealing layer and a preparation method thereof, aiming at the problems of poor self-breathing performance, easy falling, peeling, short service life and the like of the existing aqueous bonding material for the TIT embedding sealing layer.
In order to achieve the purpose, the invention adopts the following technical scheme: an aqueous self-breathing setting compound for a TIT caulk comprising: the water-based epoxy curing agent, the epoxy resin emulsion, the waste with low water absorption, the coupling agent, the pigment and filler, the stabilizer, the flatting agent and the defoaming agent are adopted, the hardness of the embedding and sealing layer is more than 2H after the water-based self-breathing bonding material is cured, the pull strength is more than 1MPa, and the pendulum friction value is more than or equal to 70.
Further, epoxy resin emulsion: low water absorption waste: pigment and filler: a stabilizer: leveling agent: the mass ratio of the defoaming agent is 100: (5-15): (20-40): (0.5-2): (0.5-2.5): (0.2-2).
Furthermore, the ratio of the amino active hydrogen contained in the aqueous epoxy curing agent to the epoxy group contained in the epoxy resin emulsion is 0.8-1.2: 1.
Further, the mass ratio of the low water absorption waste to the coupling agent is 100: 1 to 3.
Furthermore, the low-water-absorption waste is one or a mixture of more of waste wood chips, waste bagasse, waste rice hulls, waste polyurethane foam and waste phenolic foam.
Furthermore, the pigment and filler is one or a mixture of several of iron oxide red, carbon black, silicon dioxide, calcium sulfate, talcum powder, argil and calcium carbonate.
Further, the stabilizer is one or a mixture of a plurality of heat stabilizers, ultraviolet absorbers and ultraviolet screening agents.
Further, the leveling agent is one of polysiloxane, polyether modified polysiloxane or fluorine-containing surfactant; the defoaming agent is an aqueous defoaming agent.
Further, the coupling agent is a silane coupling agent or a titanate coupling agent. Gamma-glycidoxypropyltrimethoxysilane (KH560) is preferred.
A preparation method of an aqueous self-breathing cementing material for a TIT embedding sealing layer comprises the following steps:
(1) preparation of low water absorption waste slurry: crushing the waste with low water absorption, putting the crushed waste into a reaction kettle with a stirrer, adding a coupling agent, and reacting for 1-2 hours at 90-120 ℃; cooling to room temperature, adding deionized water, stirring and dispersing to obtain low-water-absorption waste slurry with the solid content of 10-20%;
(2) preparation of epoxy resin slurry: putting the epoxy resin emulsion into a stirring kettle, starting stirring, slowly and sequentially adding the low-water-absorptivity waste slurry, the pigment and filler, the stabilizer, the flatting agent and the foaming agent, and filtering to obtain epoxy resin slurry;
(3) preparation of aqueous self-breathing binders for the TIT potting layer: and adding the aqueous epoxy curing agent and the epoxy resin slurry, stirring uniformly, and filtering to obtain the aqueous self-breathing solidifying material for the TIT embedding sealing layer.
The low water absorption waste refers to waste of crops or industrial products with low water absorption, such as waste wood chips, waste bagasse, waste rice hulls, waste polyurethane foam, waste phenolic foam and the like. The low water absorption waste is crushed to obtain low water absorption waste powder, the low water absorption waste slurry can be prepared through surface modification, the slurry has good compatibility with epoxy resin emulsion, and the slurry is applied to the surface layer of the pavement after being prepared into the aqueous self-breathing bonding material for the TIT embedding sealing layer. After the consolidation material is solidified, along with the volatilization of water, capillary pores are generated in situ at the position of the waste with low water absorption, and only the water and the steam are permeable and impermeable, thereby fundamentally solving the self-breathing performance of the water-based consolidation material for the TIT embedding sealing layer and preventing the TIT embedding sealing layer from easily falling off and peeling; if the water is accumulated on the road surface, the low-water-absorption waste absorbs water and expands, but the expansion rate is low, so that the water can be prevented from leaking to the bottom layer of the road surface, the strength of the road surface can be increased, and the TIT embedded sealing layer can be prevented from being damaged.
The invention has the beneficial effects that: (1) compared with the solvent-based binding material used in the current market, the water-based self-breathing binding material for the TIT embedding sealing layer has the advantages of no toxicity, no combustion, safe use, no environmental pollution and the like. (2) Compared with the water-based binding material used in the current market, the water-based self-breathing binding material for the TIT embedding sealing layer has the advantages of simple preparation process, low cost, high adhesive force, high hardness, wear resistance and the like. (3) The invention comprehensively considers the requirement that the aqueous self-breathing bonding material for the TIT embedding sealing layer is used for the highway pavement base material, and improves the compatibility and stability of the low-water-absorption waste and the aqueous epoxy resin by modifying the low-water-absorption waste through the silane coupling agent; the capillary pores are generated in situ by dehydrating the low-water-absorption wastes, and water vapor at the lower layer of the pavement is easy to permeate, so that the self-breathing property of the aqueous consolidation material for the TIT embedding sealing layer is realized; and the water-absorbing low-expansion concrete can absorb water under the condition of water, not only can prevent the water from leaking to the bottom layer of the pavement, but also can increase the strength of the pavement, thereby greatly prolonging the service life of the water-based self-breathing bonding material for the TIT embedding sealing layer.
Detailed description of the invention
In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
(1) Preparation of low water absorption waste slurry:
100 parts of waste wood chips are crushed and added into a reaction kettle with a stirrer, and 1 part of KH560 is added to react for 2 hours at 90 ℃. And cooling to room temperature, adding 400 parts of deionized water, and stirring and dispersing to obtain the low-water-absorption waste slurry with the solid content of 20%.
(2) Preparation of epoxy resin slurry:
100 parts of epoxy emulsion (AB-EP-12 (W60) from Zhejiang Anbang New Material development Co., Ltd.) are put into a stirring kettle, stirring is started, and 5 parts of low water absorption waste slurry, 10 parts of iron oxide red, 10 parts of talcum powder and 0.5 part of low water absorption waste slurry are slowly and sequentially added
And filtering 1010 parts of heat stabilizer, 0.5 part of polysiloxane flatting agent and 0.2 part of water-based defoaming agent to obtain the epoxy resin slurry. (3) Preparation of aqueous self-breathing binders for the TIT potting layer:
respectively adding an aqueous epoxy curing agent (AB-HGD, New Material development Co., Ltd., Zhejiang Anbang) and epoxy resin slurry according to the mass ratio of amino active hydrogen contained in the aqueous epoxy curing agent to epoxy group contained in the epoxy resin emulsion being 0.8:1, uniformly stirring, and filtering to obtain the aqueous self-breathing cementing material for the TIT embedding sealing layer.
Example 2
(1) Preparation of low water absorption waste slurry:
70 parts of waste bagasse and 30 parts of waste polyurethane foam are respectively crushed and added into a reaction kettle with a stirrer, 2 parts of KH560 are added, and the mixture is reacted for 1.5 hours at 100 ℃. And cooling to room temperature, adding 570 parts of deionized water, and stirring and dispersing to obtain the low-water-absorption waste slurry with the solid content of 15%.
(2) Preparation of epoxy resin slurry:
100 parts of epoxy emulsion (H190, Shanghai Hanzhong paint Co., Ltd.) is put into a stirring kettle, stirring is started, 10 parts of low water absorption waste slurry, 10 parts of calcium sulfate, 20 parts of argil, 0.5 part of heat stabilizer 1010, 1.0 part of ultraviolet absorbent UV-531, 1.5 parts of polyether modified polysiloxane flatting agent and 1.0 part of aqueous defoaming agent are slowly and sequentially added, and the epoxy resin slurry is prepared by filtering.
(3) Preparation of aqueous self-breathing binders for the TIT potting layer:
respectively adding an aqueous epoxy curing agent (Shanghai Hanzhong paint Co., Ltd., H201B) and epoxy resin slurry according to the mass ratio of amino active hydrogen contained in the aqueous epoxy curing agent to epoxy group contained in the epoxy resin emulsion being 1:1, uniformly stirring, and filtering to obtain the aqueous self-breathing bonding material for the TIT embedding sealing layer.
Example 3
(1) Preparation of low water absorption waste slurry:
respectively crushing 50 parts of waste polyurethane foam, 20 parts of waste phenolic foam and 30 parts of waste rice hulls, adding the crushed materials into a reaction kettle with a stirrer, adding 3 parts of KH560, and reacting for 1 hour at 120 ℃. And then cooling to room temperature, adding 900 parts of deionized water, stirring and dispersing to obtain the low-water-absorption waste slurry with the solid content of 10%.
(2) Preparation of epoxy resin slurry:
100 parts of epoxy emulsion (WG 827, Meiguo Haiwang terrace materials Co., Ltd., Suzhou) is put into a stirring kettle, stirring is started, 15 parts of low water absorption waste slurry, 10 parts of carbon black, 10 parts of calcium sulfate, 20 parts of carbon black, 1.0 part of heat stabilizer 264, 1.0 part of ultraviolet absorbent UV-327, 2.5 parts of fluorinated surfactant leveling agent and 2 parts of aqueous defoaming agent are slowly and sequentially added, and the epoxy resin slurry is prepared by filtering.
(3) Preparation of aqueous self-breathing binders for the TIT potting layer:
respectively adding an aqueous epoxy curing agent (WG 802, Suzhou Mei Wang terrace materials Co., Ltd.) and epoxy resin slurry according to the quantity ratio of amino active hydrogen contained in the aqueous epoxy curing agent to epoxy group substances contained in the epoxy resin emulsion being 1.2:1, uniformly stirring, and filtering to obtain the aqueous self-breathing solidifying material for the TIT embedding sealing layer.
Comparative example 1
(1) Preparation of epoxy resin slurry:
100 parts of epoxy emulsion (AB-EP-12 (W60) from New Material development Limited, Zhejiang Anbang) are put into a stirring kettle, stirring is started, 10 parts of calcium sulfate, 20 parts of argil, 0.5 part of heat stabilizer 1010, 1.0 part of ultraviolet absorbent UV-531, 1.5 parts of polyether modified polysiloxane flatting agent and 1.0 part of aqueous defoaming agent are slowly and sequentially added, and epoxy resin slurry is prepared by filtering.
(3) Preparation of the aqueous binder for the TIT embedding seal:
respectively adding an aqueous epoxy curing agent (AB-EP-12 (W60)) and epoxy resin slurry according to the mass ratio of amino active hydrogen contained in the aqueous epoxy curing agent to epoxy group contained in the epoxy resin emulsion being 1:1, uniformly stirring, and filtering to obtain the aqueous curing material for the TIT embedding sealing layer.
The results of the performance tests are shown in table 1:
table 1 results of performance testing
Note: a testing in a dry state; b testing in the moist state
After the aqueous consolidation material is cured, the hardness, the water seepage performance, the adhesive force and the abrasion resistance of the examples 1-3 are improved to a certain extent compared with those of the comparative example 1; the water vapor transmission amount is greatly different in a test under a dry state because the low water absorption waste generates capillary pores in situ due to dehydration, and water vapor is easy to permeate; the water vapor transmission amount is not greatly different when tested in a wet state because the low water absorption waste absorbs water and expands low under the condition of water, so that the water vapor is prevented from transmitting.
The aqueous self-breathing cementing material for the TIT embedding sealing layer has excellent performance, good system compatibility, low raw material cost, high production efficiency, easy industrialization, very wide application and no toxic solvent release in the whole process, and is a non-toxic and pollution-free environment-friendly cementing material for the TIT embedding sealing layer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An aqueous self-breathing setting compound for a TIT potting layer, comprising: the embedding and sealing layer is cured by the aqueous self-breathing solidifying material, the hardness is more than 2H, the pull strength is more than 1MPa, and the pendulum friction value is more than or equal to 70;
the epoxy resin emulsion: low water absorption waste: pigment and filler: a stabilizer: leveling agent: the mass ratio of the defoaming agent is 100: (5-15): (20-40): (0.5-2): (0.5-2.5): (0.2-2);
the mass ratio of the low water absorption waste to the coupling agent is 100: 1-3;
the low water absorption waste is one or a mixture of more of waste wood chips, waste bagasse, waste rice hulls, waste polyurethane foam and waste phenolic foam;
the consolidation material is prepared by the following steps:
(1) preparation of low water absorption waste slurry: crushing the waste with low water absorption, putting the crushed waste into a reaction kettle with a stirrer, adding a coupling agent, and reacting for 1-2 hours at 90-120 ℃; cooling to room temperature, adding deionized water, stirring and dispersing to obtain low-water-absorption waste slurry with the solid content of 10-20%;
(2) preparation of epoxy resin slurry: putting the epoxy resin emulsion into a stirring kettle, starting stirring, slowly and sequentially adding the low-water-absorptivity waste slurry, the pigment and filler, the stabilizer, the flatting agent and the defoaming agent, and filtering to obtain epoxy resin slurry;
(3) preparation of aqueous self-breathing binders for the TIT potting layer: and adding the aqueous epoxy curing agent and the epoxy resin slurry, stirring uniformly, and filtering to obtain the aqueous self-breathing solidifying material for the TIT embedding sealing layer.
2. The aqueous self-breathing setting compound for a TIT insert as claimed in claim 1 wherein: the water-based epoxy curing agent and the epoxy resin emulsion have a ratio of 0.8-1.2: 1 of the amount of amino active hydrogen contained in the water-based epoxy curing agent to the amount of epoxy group contained in the epoxy resin emulsion.
3. The aqueous self-breathing setting compound for a TIT insert as claimed in claim 1 wherein: the pigment and filler is one or a mixture of several of iron oxide red, carbon black, silicon dioxide, calcium sulfate, talcum powder, argil and calcium carbonate.
4. The aqueous self-breathing setting compound for a TIT insert as claimed in claim 1 wherein: the stabilizer is one or a mixture of a plurality of heat stabilizers, ultraviolet absorbers and ultraviolet screening agents.
5. The aqueous self-breathing setting compound for a TIT insert as claimed in claim 1 wherein: the leveling agent is one of polysiloxane, polyether modified polysiloxane or fluorine-containing surfactant; the defoaming agent is an aqueous defoaming agent.
6. The aqueous self-breathing setting compound for a TIT insert as claimed in claim 1 wherein: the coupling agent is a silane coupling agent or a titanate coupling agent.
7. A process for the preparation of an aqueous self-breathing setting compound for TIT sealing of any of claims 1 to 6, characterized by the following steps:
(1) preparation of low water absorption waste slurry: crushing the waste with low water absorption, putting the crushed waste into a reaction kettle with a stirrer, adding a coupling agent, and reacting for 1-2 hours at 90-120 ℃; cooling to room temperature, adding deionized water, stirring and dispersing to obtain low-water-absorption waste slurry with the solid content of 10-20%;
(2) preparation of epoxy resin slurry: putting the epoxy resin emulsion into a stirring kettle, starting stirring, slowly and sequentially adding the low-water-absorptivity waste slurry, the pigment and filler, the stabilizer, the flatting agent and the defoaming agent, and filtering to obtain epoxy resin slurry;
(3) preparation of aqueous self-breathing binders for the TIT potting layer: and adding the aqueous epoxy curing agent and the epoxy resin slurry, stirring uniformly, and filtering to obtain the aqueous self-breathing solidifying material for the TIT embedding sealing layer.
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