CN107984823A - Self-adhering-type modified asphalt waterproof coiled material and its production method - Google Patents

Self-adhering-type modified asphalt waterproof coiled material and its production method Download PDF

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Publication number
CN107984823A
CN107984823A CN201711167463.7A CN201711167463A CN107984823A CN 107984823 A CN107984823 A CN 107984823A CN 201711167463 A CN201711167463 A CN 201711167463A CN 107984823 A CN107984823 A CN 107984823A
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modified
self
modified pitch
parts
adhesive layer
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Inventor
刘拥军
刘永刚
郑新国
郑爱彬
候尚春
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Guangxi Wuxuan Jinpai Waterproof Material Science And Technology Co Ltd
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Guangxi Wuxuan Jinpai Waterproof Material Science And Technology Co Ltd
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Priority to CN201711167463.7A priority Critical patent/CN107984823A/en
Publication of CN107984823A publication Critical patent/CN107984823A/en
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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
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B11/046—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1269—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives multi-component adhesive
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2419/00—Buildings or parts thereof
    • 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
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The present invention relates to a kind of self-adhering-type modified asphalt waterproof coiled material, which is five layered structures, is followed successively by from top to bottom：Upper surface separation layer, upper modified pitch self-adhesive layer, tire basic unit, lower modified pitch self-adhesive layer and lower surface separation layer；The upper modified pitch self-adhesive layer and lower modified pitch self-adhesive layer are made by modified pitch.After the present invention is modified pitch by using materials such as butadiene-styrene rubber, SIS styrene-isoprene-styrenes block copolymer, diethylenetriamine base propyl trimethoxy silicane tackifier, obtained Properties of Modified Asphalt is stablized, and the modified nano calcium carbonate dispersiveness added is high, the effective storage stability for improving modified pitch system；The modified pitch is used for waterproof roll is made, the performance such as the tearing toughness of the waterproof roll produced, caking property, water resistance, resistance to ag(e)ing is obtained for raising, improves the service life of waterproof roll.

Description

Self-adhering-type modified asphalt waterproof coiled material and its production method
Technical field
The present invention relates to a kind of waterproof material, and in particular to a kind of self-adhering-type modified asphalt waterproof coiled material and its producer Method, belongs to waterproof chemistry Material Field.
Background technology
It is also increasing to the waterproof material demand of architectural engineering with the raising of present Building technology, quality is wanted Ask also higher and higher.With the progress of various engineering constructions, roofing, ground, the infiltration seepy question of basement perplex all the time People, thus waterproofing work is come into being, and various waterproof materials emerge in an endless stream, and waterproofing industry flourishes, and waterproof roll is wide It is general to be applied in building trade, it is one of important construction material.
At present, the waterproof roll class product of existing application mainly has three big series in China market, i.e.,：1. high molecule plastic Waterproof sheet.Such as：PVC, CPE, EVA, TPO etc.；2. it is rubber water-proofing coiled, such as：EPDM, butyl rubber, reclaimed rubber and Dilute blend rubber waterproof roll of chlorinated polyethylene etc.；3. pitch or modified asphalt waterproof coiled material, such as：SBS elastomer modified asphalts Waterproof roll, APP atactic polypropylene (APP) modified bituminous waterproof sheet materials, rubber asphalt waterproofing coiled material etc..Pitch is a kind of brown or dark brown Organic cementitious material, there is the outstanding features such as raw material inexpensively enriches, easy construction, water-proof function are strong, waterproof cycle length, be soil Indispensable material during wood engineering is built, has a wide range of applications in the engineerings such as building, highway, bridge.By for many years Practical application engineering statistics obtains, pitch class waterproof roll seniority among brothers and sisters first, is that China applies most one on building Kind common waterproof material, because the price of product is relatively low, easy to use and deep by building and design department is welcome, dosage it is big and Extensively, it is mainly used for the basic waterproof of architecture bottom layer, also has part to be used for the naked positions such as roofing.
In terms of using pitch to prepare waterproof roll for raw material, since protobitumen has, low temperature is crisp, and high temperature trickling is anti-, aging Can be poor the characteristics of, by technology, it is necessary to be improved.People are also constantly studying always, properties are prepared more Outstanding waterproof roll.In terms of asphalt water-proof coiled material, relevant document is retrieved such as：
The Chinese patent of Application No. CN201510959499.3 discloses a kind of modified asphalt waterproof coiled material and its structure and applies Work technique, the invention provides a kind of modified asphalt waterproof coiled material, the waterproof roll includes upper surface layer, modified pitch Layer, sandwich layer, glass fiber reticular cloth, self-adhesive layer, isolation film.Bitumen layer includes following raw material components：Matrix pitch, modifying agent, softening Oil, reinforcing agent, regenerative epoxy resin powder, inorganic filler, elastic granule.The self-adhesive layer includes following raw material components：Base Matter pitch, modifying agent, SBR rubber, SIS thermoplastic elastomers, regenerative epoxy resin powder, elastic granule, rubber oil, thickening tree Fat, talcum powder.The invention waterproof roll cost is low, less energy consumption, good mechanical property, and without fire hazard.And for example Application No. The Chinese patent of CN201510339483.2 discloses a kind of modified asphalt waterproof coiled material, to solve common polymer membranes The problems such as tensile property is low, environment protecting is poor, modified asphalt waterproof roll short life.The modified asphalt waterproof coiled material, bag Modified pitch, Polypropylene, PE films are included, the modified pitch is counted by 40-50 parts of pitch, high density polyethylene (HDPE) 20- in parts by weight 10-20 parts of 30 parts, 15-30 parts of SBS rubber, 0.2-2 parts of stabilizer, 0.5-1 parts of antioxidant, 0.1-2 parts of light stabilizer and filler Synthesis.
Two documents mentioned above, although all be modified pitch to obtain performance more preferably waterproof roll, It is that it is not all modified its used filler such as calcium carbonate, powdered carbon and talcum powder etc. when preparing modified pitch, and not The filler being modified has the shortcomings that obvious when being filled in when being used to prepare modified pitch in various polymer：First, surface is close Water oleophobic, in polymeric inner bad dispersibility；Second, it is poor with joint efforts with high polymer bulk junction, it has been only capable of compatibilization.These not into The modified filler surface hydrophilic oleophobic of row, it is poor with the compatibility and dispersiveness of polymer, for preparing modified pitch and then using The performance of product can be had an impact when waterproof roll is produced.Such as when use a high proportion of filler such as calcium carbonate and talcum powder During filled bitumen, polymeric material performance can be caused drastically to decline, so that product is difficult to be processed and uses.And above-mentioned carry The technique of the two parts of documents production modified asphalt waterproof coiled material arrived is all relatively complicated.
At present, common modified bituminous pitch coiled material tensile strength is not high；The globality of laying is also poor；After causing construction, have Very big risk of leakage；Work progress is also cumbersome, although and existing modified asphalt waterproof coiled material with very high intensity, But adhesive property is poor, coiled material and basic unit could not be tightly combined bonding, and production process is also relatively complicated, and tensile strength it is low, Tearing toughness is low, oxidation resistance is poor, short life, it is difficult to adapts to the needs of various environment.Therefore, to using pitch system Studied in terms of standby waterproof roll hair of the more excellent performance of modified asphalt waterproof coiled material to building trade is prepared Exhibition plays an important role.
The content of the invention
The object of the present invention is to provide it is a kind of it is big with the adhesion strength of building basal plane, good water-proof effect, tensile property are high Self-adhering-type modified asphalt waterproof coiled material and its production method, this method improved prepared anti-by being modified to pitch The draftability of water coiled material, caking property and the performance such as ageing-resistant, improve the service life of waterproof roll.
To achieve the above object, this method adopts the following technical scheme that：
A kind of self-adhering-type modified asphalt waterproof coiled material, the waterproof roll are five layered structures, are followed successively by from top to bottom：Upper surface every Absciss layer, upper modified pitch self-adhesive layer, tire basic unit, lower modified pitch self-adhesive layer and lower surface separation layer；The upper modified pitch Self-adhesive layer and lower modified pitch self-adhesive layer are made by modified pitch, the modified drip
Green grass or young crops is made of the raw material of following parts by weight：70-85 parts of 90# asphalt；15-25 parts of naphthenic oil；Butadiene-styrene rubber 10-15 Part；5-10 parts of SIS styrene-isoprene-styrene block copolymer；Diethylenetriamine base propyl trimethoxy silicane 1-3 Part；10-15 parts of phenolate lignin；1-3 parts of acetyl trihexyl citrate；4-8 parts of tackifier；1-3 parts of Sodium Polyacrylate；Modification is received 15-20 parts of calcium carbonate of rice.
Above-mentioned self-adhering-type modified asphalt waterproof coiled material, the upper surface separation layer and lower surface separation layer for PE films, One kind in PET film or PVC film；The tire basic unit is glass fiber felt or fiberglass reinforcing polyester felt.
Above-mentioned self-adhering-type modified asphalt waterproof coiled material, the tackifier are liquid coumarone or rosin glycerides.
Above-mentioned self-adhering-type modified asphalt waterproof coiled material, the preparation method of the phenolate lignin are：By sulfomethylated lignin Sour sodium is added in heating reaction kettle, is added the phenol solution of sodium lignin sulfonate weight 60%, is stirred evenly, add wooden The mass concentration of plain sodium sulfonate weight 3-5% is the sodium hydroxide solution of 40-50%, and stirring and dissolving, is warming up to 110-120 DEG C, perseverance After when temperature stirring reaction 0.8-2 is small, reaction solution pH=2-3 is adjusted with hydrochloric acid, is filtered, filter cake is washed until without free benzene with boiling water Phenol exists, and obtains phenolate lignin, and phenolate lignin is ground into granularity less than or equal to 1 centimetre with mill.
Above-mentioned self-adhering-type modified asphalt waterproof coiled material, the preparation method of the modified nano calcium carbonate are：By nanometer Calcium carbonate powder is dehydrated in 115~120 DEG C, is then added in high-speed mixer, is stirred and heat up, and 90 DEG C stop heating, The chelating titanate coupling agent KR- 201 of nano-calcium carbonate quality 2.0% is added, in 90 DEG C of modified 10min；Add one by one again The stearic acid of nano-calcium carbonate quality 2.0%, 0.5% coconut oil and 1% technical white oil, at 90 DEG C again respectively be modified 10~ 15 min, shut down, and discharging, obtains modified nano calcium carbonate.
The self-adhering-type modified asphalt waterproof coiled material, its production method include the following steps：
（1）First prepare modified pitch：
1. 90# asphalt and naphthenic oil are added in reaction kettle according to parts by weight, reaction temperature is heated to 155-165 After DEG C, tackifier, phenolate lignin and diethylenetriamine base propyl trimethoxy silicane are added, is stirred with high-speed shearing machine 60-90 minutes；
2. the temperature of reaction kettle is warming up to 175-180 DEG C, reaction kettle add butadiene-styrene rubber and SIS styrene-isoprenes- Styrene block copolymer, stirring, melts uniform；
3. adding acetyl trihexyl citrate, Sodium Polyacrylate and modified nano calcium carbonate in a kettle, stir evenly, so All materials in reaction kettle are carried out to shearing 90~100 minutes again on high-speed shearing machine afterwards, until 90# asphalt with Unclassified stores is uniformly dispersed, and modified pitch is made；
（2）Obtained modified pitch is pumped into production line front end immersion trough, tire basic unit is unfolded in the production line and imports immersion trough, is soaked Stain modified pitch, and thickness control is carried out with thickness control roller, respectively modified pitch is formed in the upper and lower surface of tire basic unit certainly Adhesion coating and lower modified pitch self-adhesive layer, upper modified pitch self-adhesive layer and lower modified pitch self-adhesion aspect be covered with respectively upper surface every Absciss layer and lower surface separation layer, after cooling device cools down, count length, trimming, wind, are packaged to be finished product.
What the modified nano calcium carbonate used in the present invention primarily served in modified pitch prepared by the present invention is filler Effect, produced the filler such as kaolin, barium sulfate and talcum powder of waterproof roll in modified pitch used etc. and did not all have in the past Have by modification, the shortcomings that obvious is had when being filled in various polymer：When surface hydrophilic oleophobic, in polymeric inner point It is poor to dissipate property；Second, it is poor with joint efforts with high polymer bulk junction, it has been only capable of compatibilization.These filler surface hydrophilics used were dredged in the past Oil, poor with the compatibility and dispersiveness of polymer, for being filled into pitch when can be to the performance of prepared modified pitch Have an impact.The present invention is reduced intergranular by the way that nano-calcium carbonate calcium powder to be modified to obtain modified nano calcium carbonate Agglomeration power, adds lipophile, improves the compatibility and dispersiveness of calcium carbonate and polymer, enhances chemical affinity, uses In filled bitumen, modified nano calcium carbonate can be uniformly dispersed in whole system, good dispersion, overcome in the past used fill out The shortcomings that material is filled into the presence of pitch.
Present invention acetyl trihexyl citrate used when preparing modified pitch, for micro- yellow transparent oily liquid, has very The good reproductive performance of resistance to mould, heat-resisting, cold-resistant, fast light, have excellent water-resistance, plasticizing efficiency is high, be a kind of good environment-friendly type without Malicious plasticizer, with the paint film very oil resistant and tallow of its plasticising.It is used to prepare the present invention's using acetyl trihexyl citrate Modified pitch, which is subsequently used for production waterproof roll, can improve the water resistance and scratch-resistant of waterproof roll, strengthen waterproof roll Extensibility, obdurability and adhesive force, moreover it is possible to further improve the fungicidal properties of waterproof roll.Polyacrylic acid used in the present invention Sodium, plays the role of anti-settling agent and dispersant in modified pitch prepared by the present invention, can be distributed evenly in solid part whole In a system.Raw material butadiene-styrene rubber and SIS styrene-isoprene-phenylethenes used in modified pitch prepared by the present invention Block copolymer has sale on the market.
Beneficial effects of the present invention are：
1st, the upper modified asphalt layer of self-adhering-type modified asphalt waterproof coiled material of the present invention and lower modified asphalt layer are by modified pitch system , when preparing modified pitch, the diethylenetriamine base propyl trimethoxy silicane of addition is to contain multiple functional groups in molecule Compound, the diethylenetriamine hydrolyzable alkoxy grp of base propyl trimethoxy silicane its one end with add another raw material phenol The phenolic hydroxyl group for changing lignin is connected, and the carboxyl of the organo-functional group such as the vinyl of the other end, amido and pitch connects, " molecular link bridge " is formed between phenolate lignin and pitch matrix, is acted on by chemical bonding, enhances lignin and pitch Interface binding power, and make pitch coupling into the macromolecular with reactivity, when this macromolecular is contacted with basal plane, modified pitch Molecule section forms physical absorption with concrete, and the macromolecular with reactivity occurs chemical bonding absorption with concrete and makees With, chemical interactions are produced, therefore the waterproof layer and the cohesive force of concrete that are formed just greatly enhance, it is difficult to by extraneous environment Factor influences.And the sodium lignin sulfonate active group after phenolate is more, organic active is high, so allows for phenolate lignin There are chemical bonds between pitch, and cohered between undressed lignin and pitch by mechanical interlocked, be only thing Manage mortise and tenon.Therefore, the interface bond strength of the sodium lignin sulfonate after phenolate processing and pitch is improved.
2nd, the self-adhering-type modified asphalt waterproof coiled material that the present invention is prepared is used for strong with the bonding of building basal plane in building Degree is big, good water-proof effect.Obtained modified pitch is used to prepare the upper modified pitch self-adhesive layer of waterproof roll with by the present invention Modified pitch self-adhesive layer, this two layers of modified pitch self-adhesive layer can play chemical crosslink reaction and physics mortise and tenon association jointly with concrete Same cementation, can wriggle during cement, concrete setting and penetrate into cement gel and concrete pore, reach It is tightly combined, is firm, irreversible as closely linked as flesh and blood bond effect, substantially increases the adhesion strength of waterproof roll.Change on and Property pitch self-adhesive layer and the bonding of lower modified pitch self-adhesive layer and concrete surface be irreversible, adhesion strength is big, tear-proof Intensity is high, elongation percentage is big, even if basal plane expands with heat and contract with cold, generation displacement or even cracking or adhesive surface are soaked be subject to water for a long time With the effect of hydraulic pressure, bond effect is still kept.
3rd, the present invention is by using butadiene-styrene rubber, SIS styrene-isoprene-styrene block copolymer, divinyl three After the materials such as aminocarbonyl propyl trimethoxy silane, phenolate lignin, tackifier are modified pitch, obtained modified pitch Matter is stablized, and the modified nano calcium carbonate dispersiveness added is high, the effective storage stability for improving modified pitch system；Will The modified pitch is used for that waterproof roll is made, the tearing toughness of the waterproof roll produced, caking property, water resistance, anti- The performances such as mouldiness, resistance to ag(e)ing are obtained for raising, have higher elongation at break, and improve waterproof roll uses the longevity Life.And manufacture craft is simple, the shortcomings of conventional waterproof roll making is cumbersome, and adhesive property is weak is overcome.The present invention is prepared into To self-adhering-type modified asphalt waterproof coiled material be used in building, the adhesion strength of waterproof roll and building basal plane is big, waterproof Effect is good, effectively prevents the generation of the phenomenon of waterproof roll infiltration leak.And its oil resistivity and flexible resistance protrude, and It is nontoxic, it is safety and environmental protection, pollution-free.
Embodiment
Embodiment 1
A kind of self-adhering-type modified asphalt waterproof coiled material, the waterproof roll are five layered structures, are followed successively by from top to bottom：Upper surface every Absciss layer, upper modified pitch self-adhesive layer, tire basic unit, lower modified pitch self-adhesive layer and lower surface separation layer；
Upper surface separation layer and lower surface separation layer are PE films；Tire basic unit is glass fiber felt；
Upper modified pitch self-adhesive layer and lower modified pitch self-adhesive layer are made by modified pitch, the modified drip
Green grass or young crops is made of the raw material of following parts by weight：70 parts of 90# asphalt；15 parts of naphthenic oil；10 parts of butadiene-styrene rubber；SIS benzene 10 parts of ethene-isoprene-styrene block copolymer；1 part of diethylenetriamine base propyl trimethoxy silicane；Phenolate lignin 10 parts；1 part of acetyl trihexyl citrate；4 parts of tackifier liquid coumarone；1 part of Sodium Polyacrylate；Modified nano calcium carbonate 15 Part.
The preparation method of the phenolate lignin is：Sodium lignin sulfonate is added in heating reaction kettle, adds wood The phenol solution of quality sodium sulfonate weight 60%, stirs evenly, and the mass concentration for adding sodium lignin sulfonate weight 3% is 50% Sodium hydroxide solution, stirring and dissolving is warming up to 110 DEG C, when constant temperature stirring reaction 2 is small after, adjust reaction solution pH=2- with hydrochloric acid 3, filter, wash filter cake until no free-phenol exists with boiling water, obtain phenolate lignin, phenolate lignin is ground with mill Granularity is worn into less than or equal to 1 centimetre.
The preparation method of the modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dry in 115~120 DEG C of dehydrations It is dry, it is then added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add the chelating of nano-calcium carbonate quality 2.0% Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min；Add one by one again nano-calcium carbonate quality 2.0% stearic acid, 0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive Rice calcium carbonate.
The self-adhering-type modified asphalt waterproof coiled material, its production method include the following steps：
（1）First prepare modified pitch：
1. 90# asphalt and naphthenic oil are added in reaction kettle according to parts by weight, reaction temperature is heated to 155 DEG C Afterwards, tackifier liquid coumarone, phenolate lignin and diethylenetriamine base propyl trimethoxy silicane are added, uses high speed shear Machine stirs 90 minutes；
2. the temperature of reaction kettle is warming up to 175-180 DEG C, reaction kettle add butadiene-styrene rubber and SIS styrene-isoprenes- Styrene block copolymer, stirring, melts uniform；
3. adding acetyl trihexyl citrate, Sodium Polyacrylate and modified nano calcium carbonate in a kettle, stir evenly, so All materials in reaction kettle are carried out to shearing 90 minutes again on high-speed shearing machine afterwards, up to 90# asphalt and other Material dispersion is uniform, and modified pitch is made；
（2）Obtained modified pitch is pumped into production line front end immersion trough, tire basic unit is unfolded in the production line and imports immersion trough, is soaked Stain modified pitch, and thickness control is carried out with thickness control roller, respectively modified pitch is formed in the upper and lower surface of tire basic unit certainly Adhesion coating and lower modified pitch self-adhesive layer, upper modified pitch self-adhesive layer and lower modified pitch self-adhesion aspect be covered with respectively upper surface every Absciss layer and lower surface separation layer, after cooling device cools down, count length, trimming, wind, are packaged to be finished product.
Embodiment 2
A kind of self-adhering-type modified asphalt waterproof coiled material, the waterproof roll are five layered structures, are followed successively by from top to bottom：Upper surface every Absciss layer, upper modified pitch self-adhesive layer, tire basic unit, lower modified pitch self-adhesive layer and lower surface separation layer；
Upper surface separation layer and lower surface separation layer are PET film；Tire basic unit is fiberglass reinforcing polyester felt；
Upper modified pitch self-adhesive layer and lower modified pitch self-adhesive layer are made by modified pitch, the modified drip
Green grass or young crops is made of the raw material of following parts by weight：80 parts of 90# asphalt；22 parts of naphthenic oil；12 parts of butadiene-styrene rubber；SIS benzene 9 parts of ethene-isoprene-styrene block copolymer；2 parts of diethylenetriamine base propyl trimethoxy silicane；Phenolate lignin 13 parts；2 parts of acetyl trihexyl citrate；7 parts of tackifier rosin glycerides；2 parts of Sodium Polyacrylate；Modified nano calcium carbonate 18 Part.
The preparation method of the phenolate lignin is：Sodium lignin sulfonate is added in heating reaction kettle, adds wood The phenol solution of quality sodium sulfonate weight 60%, stirs evenly, and the mass concentration for adding sodium lignin sulfonate weight 4% is 45% Sodium hydroxide solution, stirring and dissolving is warming up to 115 DEG C, when constant temperature stirring reaction 1.2 is small after, with hydrochloric acid adjust reaction solution pH= 2-3, filters, and washs filter cake until no free-phenol exists with boiling water, phenolate lignin is obtained, by phenolate lignin mill Granularity is ground into less than or equal to 1 centimetre.
The preparation method of the modified nano calcium carbonate is consistent with the preparation method in embodiment 1.
The self-adhering-type modified asphalt waterproof coiled material, its production method include the following steps：
（1）First prepare modified pitch：
1. 90# asphalt and naphthenic oil are added in reaction kettle according to parts by weight, reaction temperature is heated to 160 DEG C Afterwards, tackifier rosin glycerides, phenolate lignin and diethylenetriamine base propyl trimethoxy silicane are added, uses high speed shear Machine stirs 75 minutes；
2. the temperature of reaction kettle is warming up to 175-180 DEG C, reaction kettle add butadiene-styrene rubber and SIS styrene-isoprenes- Styrene block copolymer, stirring, melts uniform；
3. adding acetyl trihexyl citrate, Sodium Polyacrylate and modified nano calcium carbonate in a kettle, stir evenly, so All materials in reaction kettle are carried out to shearing 95 minutes again on high-speed shearing machine afterwards, up to 90# asphalt and other Material dispersion is uniform, and modified pitch is made；
（2）Obtained modified pitch is pumped into production line front end immersion trough, tire basic unit is unfolded in the production line and imports immersion trough, is soaked Stain modified pitch, and thickness control is carried out with thickness control roller, respectively modified pitch is formed in the upper and lower surface of tire basic unit certainly Adhesion coating and lower modified pitch self-adhesive layer, upper modified pitch self-adhesive layer and lower modified pitch self-adhesion aspect be covered with respectively upper surface every Absciss layer and lower surface separation layer, after cooling device cools down, count length, trimming, wind, are packaged to be finished product.
Embodiment 3
A kind of self-adhering-type modified asphalt waterproof coiled material, the waterproof roll are five layered structures, are followed successively by from top to bottom：Upper surface every Absciss layer, upper modified pitch self-adhesive layer, tire basic unit, lower modified pitch self-adhesive layer and lower surface separation layer；
Upper surface separation layer and lower surface separation layer are PVC film；Tire basic unit is glass fiber felt；
Upper modified pitch self-adhesive layer and lower modified pitch self-adhesive layer are made by modified pitch, the modified drip
Green grass or young crops is made of the raw material of following parts by weight：85 parts of 90# asphalt；25 parts of naphthenic oil；15 parts of butadiene-styrene rubber；SIS benzene 5 parts of ethene-isoprene-styrene block copolymer；3 parts of diethylenetriamine base propyl trimethoxy silicane；Phenolate lignin 15 parts；3 parts of acetyl trihexyl citrate；8 parts of tackifier liquid coumarone；3 parts of Sodium Polyacrylate；Modified nano calcium carbonate 20 Part.
The preparation method of the phenolate lignin is：Sodium lignin sulfonate is added in heating reaction kettle, adds wood The phenol solution of quality sodium sulfonate weight 60%, stirs evenly, and the mass concentration for adding sodium lignin sulfonate weight 5% is 40% Sodium hydroxide solution, stirring and dissolving is warming up to 120 DEG C, when constant temperature stirring reaction 0.8 is small after, with hydrochloric acid adjust reaction solution pH= 2-3, filters, and washs filter cake until no free-phenol exists with boiling water, phenolate lignin is obtained, by phenolate lignin mill Granularity is ground into less than or equal to 1 centimetre.
The preparation method of the modified nano calcium carbonate is consistent with embodiment 1.
The self-adhering-type modified asphalt waterproof coiled material, its production method include the following steps：
（1）First prepare modified pitch：
1. 90# asphalt and naphthenic oil are added in reaction kettle according to parts by weight, reaction temperature is heated to 165 DEG C Afterwards, tackifier liquid coumarone, phenolate lignin and diethylenetriamine base propyl trimethoxy silicane are added, uses high speed shear Machine stirs 60 minutes；
2. the temperature of reaction kettle is warming up to 175-180 DEG C, reaction kettle add butadiene-styrene rubber and SIS styrene-isoprenes- Styrene block copolymer, stirring, melts uniform；
3. adding acetyl trihexyl citrate, Sodium Polyacrylate and modified nano calcium carbonate in a kettle, stir evenly, so All materials in reaction kettle are carried out to shearing 100 minutes again on high-speed shearing machine afterwards, up to 90# asphalt and other Material dispersion is uniform, and modified pitch is made；
（2）Obtained modified pitch is pumped into production line front end immersion trough, tire basic unit is unfolded in the production line and imports immersion trough, is soaked Stain modified pitch, and thickness control is carried out with thickness control roller, respectively modified pitch is formed in the upper and lower surface of tire basic unit certainly Adhesion coating and lower modified pitch self-adhesive layer, upper modified pitch self-adhesive layer and lower modified pitch self-adhesion aspect be covered with respectively upper surface every Absciss layer and lower surface separation layer, after cooling device cools down, count length, trimming, wind, are packaged to be finished product.
Quality testing
1st, the modified nano calcium carbonate and the performance of unmodified nano-calcium carbonate prepared the present invention is detected experiment, as a result Draw：Modified nano calcium carbonate reduces 48.6% than unmodified nano-calcium carbonate oil factor, and settling volume reduces 57.6%, Viscosity reduces 59.9%, and bulk density reduces 16.4%.Illustrate modified nano-calcium carbonate oleophilic drainage, made with the present invention Other materials compatibilities used in standby modified pitch are good, and bulk density diminishes, and illustrates that modified nano-calcium carbonate disperses Performance is good, is not easy to reunite.
2nd, the self-adhering-type modified asphalt waterproof coiled material produced in 1-3 of the embodiment of the present invention is detected, will detected As a result the properties data with the market modified asphalt water-proof coiled material product are contrasted, as a result as shown in table 1 below：
It is above-mentioned as it can be seen that compared in the market modified asphalt water-proof coiled material product, product of the present invention is in low temperature flexibility, resistance to old Raising is obtained in the performance such as the property changed, caking property, elongation percentage.

Claims (6)

  1. A kind of 1. self-adhering-type modified asphalt waterproof coiled material, it is characterised in that the waterproof roll is five layered structures, from top to bottom according to It is secondary to be：Upper surface separation layer, upper modified pitch self-adhesive layer, tire basic unit, lower modified pitch self-adhesive layer and lower surface separation layer；It is described Upper modified pitch self-adhesive layer and lower modified pitch self-adhesive layer be to be made by modified pitch, the modified pitch is following weight The raw material of number is made：70-85 parts of 90# asphalt；15-25 parts of naphthenic oil；10-15 parts of butadiene-styrene rubber；SIS styrene-different 5-10 parts of isoprene-styrene block copolymer；1-3 parts of diethylenetriamine base propyl trimethoxy silicane；Phenolate lignin 10- 15 parts；1-3 parts of acetyl trihexyl citrate；4-8 parts of tackifier；1-3 parts of Sodium Polyacrylate；15-20 parts of modified nano calcium carbonate.
  2. 2. self-adhering-type modified asphalt waterproof coiled material according to claim 1, it is characterised in that the upper surface separation layer It is one kind in PE films, PET film or PVC film with lower surface separation layer；The tire basic unit is glass fiber felt or fiberglass reinforcing polyester Felt.
  3. 3. self-adhering-type modified asphalt waterproof coiled material according to claim 1, it is characterised in that the tackifier are liquid Coumarone or rosin glycerides.
  4. 4. self-adhering-type modified asphalt waterproof coiled material according to claim 1, it is characterised in that the phenolate lignin Preparation method is：Sodium lignin sulfonate is added in heating reaction kettle, the phenol for adding sodium lignin sulfonate weight 60% is molten Liquid, stirs evenly, and the mass concentration for adding sodium lignin sulfonate weight 3-5% is the sodium hydroxide solution of 40-50%, and stirring is molten Solution, is warming up to 110-120 DEG C, when constant temperature stirring reaction 0.8-2 is small after, adjust reaction solution pH=2-3 with hydrochloric acid, filter, use boiling water Washing filter cake exists until no free-phenol, obtains phenolate lignin, phenolate lignin is ground into granularity with mill is less than Or equal to 1 centimetre.
  5. 5. self-adhering-type modified asphalt waterproof coiled material according to claim 1, it is characterised in that the modified nano-meter caco 3 The preparation method of calcium is：By nano-calcium carbonate calcium powder in 115~120 DEG C of dehydration and drying, it is then added in high-speed mixer, stirs Mix and heat up, 90 DEG C stop heating, the chelating titanate coupling agent KR- 201 of nano-calcium carbonate quality 2.0% are added, 90 DEG C modified 10min；Add stearic acid, 0.5% coconut oil and 1% technical white oil of nano-calcium carbonate quality 2.0% one by one again, It is modified 10~15 min respectively again at 90 DEG C, shuts down, discharging, obtains modified nano calcium carbonate.
  6. 6. self-adhering-type modified asphalt waterproof coiled material according to claim 1, it is characterised in that its production method includes as follows Step：
    （1）First prepare modified pitch：
    1. 90# asphalt and naphthenic oil are added in reaction kettle according to parts by weight, reaction temperature is heated to 155-165 After DEG C, tackifier, phenolate lignin and diethylenetriamine base propyl trimethoxy silicane are added, is stirred with high-speed shearing machine 60-90 minutes；
    2. the temperature of reaction kettle is warming up to 175-180 DEG C, reaction kettle add butadiene-styrene rubber and SIS styrene-isoprenes- Styrene block copolymer, stirring, melts uniform；
    3. adding acetyl trihexyl citrate, Sodium Polyacrylate and modified nano calcium carbonate in a kettle, stir evenly, so All materials in reaction kettle are carried out to shearing 90~100 minutes again on high-speed shearing machine afterwards, until 90# asphalt with Unclassified stores is uniformly dispersed, and modified pitch is made；
    （2）Obtained modified pitch is pumped into production line front end immersion trough, tire basic unit is unfolded in the production line and imports immersion trough, is soaked Stain modified pitch, and thickness control is carried out with thickness control roller, respectively modified pitch is formed in the upper and lower surface of tire basic unit certainly Adhesion coating and lower modified pitch self-adhesive layer, upper modified pitch self-adhesive layer and lower modified pitch self-adhesion aspect be covered with respectively upper surface every Absciss layer and lower surface separation layer, after cooling device cools down, count length, trimming, wind, are packaged to be finished product.
CN201711167463.7A 2017-11-21 2017-11-21 Self-adhering-type modified asphalt waterproof coiled material and its production method Pending CN107984823A (en)

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CN108611003A (en) * 2018-05-18 2018-10-02 安徽朗凯奇建材有限公司 A kind of stretch-proof double-sided self-adhesive polymer modified bituminous polyester fiber waterproof sheet material
CN109811907A (en) * 2019-02-16 2019-05-28 马鞍山斯博尔机械技术服务有限公司 Building waterproof coil a kind of anti-aging and convenient for being laid with
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CN112026294A (en) * 2020-08-27 2020-12-04 上海建材集团防水材料有限公司 Modified asphalt waterproof coiled material and preparation method thereof
CN112832469A (en) * 2021-03-01 2021-05-25 山东普文特建材有限公司 Pre-wet paving anti-sticking anti-water-crossing waterproof material and preparation method thereof
CN112876872A (en) * 2021-03-20 2021-06-01 新京喜(唐山)建材有限公司 Modified asphalt waterproof coiled material for roads and bridges and preparation method thereof
CN113652173A (en) * 2021-08-19 2021-11-16 重庆新天地华宇新材料集团有限公司 Root-puncture-resistant high-polymer self-adhesive waterproof coiled material and production process thereof
CN114213854A (en) * 2021-12-20 2022-03-22 广东虹阳防水科技有限公司 Elastomer modified asphalt waterproof coiled material and preparation method thereof
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Cited By (12)

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CN108611003A (en) * 2018-05-18 2018-10-02 安徽朗凯奇建材有限公司 A kind of stretch-proof double-sided self-adhesive polymer modified bituminous polyester fiber waterproof sheet material
CN109811907A (en) * 2019-02-16 2019-05-28 马鞍山斯博尔机械技术服务有限公司 Building waterproof coil a kind of anti-aging and convenient for being laid with
CN111423736A (en) * 2020-04-26 2020-07-17 郑州航空工业管理学院 Preparation method of nano carbon powder, SBS (styrene butadiene styrene) and rubber powder composite modified asphalt
CN112026294A (en) * 2020-08-27 2020-12-04 上海建材集团防水材料有限公司 Modified asphalt waterproof coiled material and preparation method thereof
CN112832469A (en) * 2021-03-01 2021-05-25 山东普文特建材有限公司 Pre-wet paving anti-sticking anti-water-crossing waterproof material and preparation method thereof
CN112876872A (en) * 2021-03-20 2021-06-01 新京喜(唐山)建材有限公司 Modified asphalt waterproof coiled material for roads and bridges and preparation method thereof
CN112876872B (en) * 2021-03-20 2021-11-05 新京喜(唐山)建材有限公司 Modified asphalt waterproof coiled material for roads and bridges and preparation method thereof
CN113652173A (en) * 2021-08-19 2021-11-16 重庆新天地华宇新材料集团有限公司 Root-puncture-resistant high-polymer self-adhesive waterproof coiled material and production process thereof
CN114213854A (en) * 2021-12-20 2022-03-22 广东虹阳防水科技有限公司 Elastomer modified asphalt waterproof coiled material and preparation method thereof
CN115353820A (en) * 2022-09-20 2022-11-18 福建科顺新材料有限公司 Asphalt waterproof coiled material and preparation method thereof
CN117569097A (en) * 2024-01-16 2024-02-20 新疆独山子石油化工有限公司 Self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and preparation method thereof
CN117569097B (en) * 2024-01-16 2024-04-16 新疆独山子石油化工有限公司 Self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and preparation method thereof

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