CN1482202A - Flexible waterproof material of modified polymer , cement base , and its producing method - Google Patents
Flexible waterproof material of modified polymer , cement base , and its producing method Download PDFInfo
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Abstract
The polymer modified flexible waterproof cement-base material has improved mechanical performance, especially raised tensile strength and rectangular tear strength. The waterproof material is prepared through first kneading of hydraulic cement and polymer material, subsequent mixing and plasticating of kneaded material, toughening material and reinforcing material and final rolling to form. The material may be well adhered to various cement-base adhesive, has excellent mechanical performance and can bear the shrinkage stress and deformation of the base body and resist outer impact.
Description
Technical field
The present invention relates to polymer-modified cement-based flexible waterproof material of using in the engineerings such as construction work, hydro project, public works and preparation method thereof, more particularly, relate to polymer-modified cement-based flexible waterproof material with improved mechanical property, particularly tensile strength and angle tear strength and preparation method thereof.
Background technology
Cement group water-proofing material development in recent years is very fast, and forms some series, as polymer modified cement based waterproof coatings, rigid polymer cement (dry mixing) based waterproof mortar etc., based on the rigid polymer cement group water-proofing material.Technology such as admixture organic polymer, water-resisting agent, swelling agent are adopted in the rigidity water-proofing material modification, and the contraction of minimizing and compensation water mud material prevents cracking, reduce the also pore of refinement material, make concrete finer and close, and anti-permeability performance greatly improves.The ageing resistance of this class material is good, but because they are rigid material, therefore, can't adapt to the bigger dilatation of matrix.If basic unit is owing to the dry shrinkage or the cracking that expands with heat and contract with cold, waterproof layer also will be influenced waterproof effect by drawing crack or layering, and its use range is very limited, and not be suitable on the ground or the big area integral waterproofing engineering of roofing.
In recent years, in Japan and Germany and domestic some areas, a kind of have the very high polymer cement ratio ratio of cement (polymkeric substance with), its value is 50% or higher, sometimes can reach 100% or the pasty state or the soup compound (coating) of higher a kind of polymer modification be used as a kind of membranaceous water-proof material of liquid applications and be widely used in apartment, vault, buildings such as underground tank, though using, it is not subjected to a lot of restrictions, but need on-the-spot the stirring when constructing because of it, polymer cement ratio, the water cement ratio height, so also exist disposable film thinner, need multiple tracks construction, time-consuming shortcoming such as take a lot of work.
The open No.CN 1306949A of Chinese patent application (open day August 8 calendar year 2001) discloses polymer modified cement base waterproof material of a kind of flexibility and preparation method thereof, wherein hydraulic cement and aqueous polymer dispersion, water-soluble polymers or redispersible powdered resin or its combination are mediated, mediated material with preparation by (1); (2) described kneading material is mixing, toughness reinforcing with the toughening polymer that is selected from rubber, thermoplastic elastomer, thermoplastic resin or its combination again, calendering formation is sheet material or coiled material afterwards, thereby obtains described flexible waterproof material.This patent application claims that the flexible waterproof material that obtains has the matrix of adaptation deformability, and structure is more fine and close, and water resistance is better, and weather resistance is good.
But, the open disclosed flexible waterproof material of No.CN 1306949A of Chinese patent application still has defective, particularly do not have enough mechanical properties, especially tensile strength and angle tear strength, under the bigger situation of matrix distortion,, cause the waterproof failure easily by drawing crack.
Summary of the invention
Therefore, the inventor is on the open No.CN 1306949A basis of Chinese patent application, find through further investigation, by in the mixing toughness reinforcing process in (2) step, in toughening polymer, adding a certain amount of specific supporting material, can significantly improve the mechanical property of the flexible waterproof material that obtains, particularly tensile strength and angle tear strength, make its distortion have stronger adaptability to basic unit, and the material aging performance index have further been improved, overcome the defective of above-mentioned prior art, thereby finished the present invention.
The object of the present invention is to provide a kind of polymer-modified cement-based flexible waterproof material and preparation method thereof with improved mechanical property, particularly tensile strength and angle tear strength.
Flexible waterproof material provided by the present invention is applicable to the WATER REPELLENT in the inside and outside and shelter of civil engineering work structures, and this material should well bond with various cement based adhesives, and has the advantages that to construct on moist basal plane.Consider the advantage of cement group water-proofing material, the material that the present invention will provide should be based on cement.
For desirable cement group water-proofing material is provided, the present invention is by polymer modification and polymer toughening two step modifications, through mixing plasticate, operation such as calendering formation realizes.
More particularly, the invention provides a kind of method for preparing the cement-based flexible water-proof material, this method comprises the steps:
(1) with hydraulic cement and the polymer materials and the water that are selected from aqueous polymer dispersion, water-soluble polymers or redispersible powdered resin or its arbitrary combination, with cement: the weight ratio of polymkeric substance is 100: (5～150), be to mediate under 20～140 ℃ the condition at 20～80 rev/mins, temperature, reach 5～20% kneading material until obtaining water ratio;
(2) with described kneading material and toughening polymer and supporting material to mediate the cement in the material: toughening polymer: supporting material (110～350): 100: (＞0～90) weight ratio, mixing together, toughness reinforcing under 40～145 ℃, calendering or extrusion moulding are sheet material or coiled material afterwards, and described toughening polymer is selected from rubber, thermoplastic elastomer, thermoplastic resin or its combination.
The present invention further provides the fleximer base waterproof material of making by aforesaid method.
Embodiment
Below describe the present invention in detail.
One, mediates the preparation of material
In the method for the invention, the raw material that material is mediated in preparation is mainly hydraulic cement and as the polymkeric substance of properties-correcting agent, its weight ratio is 100: (15～150), preferred 100: (20～50), more preferably 100: (20～30).
In above-mentioned raw material, requirement cement is hydraulic cement, be selected from a kind of or its arbitrary combination in ordinary Portland cement, sulphur aluminium cement, iron aluminium cement, low alkali cement, high-alumina cement, the white cement, perhaps, 20～50% in the cement (weight) can be by various mineral admixture equivalent substitutions with latent hydraulicity.Alternative amount is decided on the fineness and the kind of adulterant, and what generally use is levigated flyash, silicon ash, volcanic ash, zeolite powder, metakaolin, slag, calcium enriched cyclone-furnace slag, phosphorus slag etc., fineness requirement 〉=300m
2/ kg.
Should satisfy the performance requriements of cement group water-proofing material as the polymkeric substance of properties-correcting agent, so should possess following characteristics:
A. the filler bearing capacity is big;
B. in the use temperature scope, have good snappiness or elastomeric property;
C. have superior anti-uv-ray and weather resistance;
D. has " respiration capability " and good chemical proof character;
E. has suitable film-forming temperature and water resisting property.
Various polymkeric substance with These characteristics can both use, as aqueous polymer dispersion, water-soluble polymers or redispersible powdered resin etc.Concrete polymkeric substance has acrylic emulsions, EVA (vinyl acetate-ethylene copolymer), styrene-butadiene latex, polychloroprene latex, vinyl acetate between to for plastic-tertiary carbon acid esters emulsion, chlorine partial emulsion, vinyl chloride-vinyl acetate-acrylic copolymer emulsion, polyvinyl acetate emulsion and redispersible powdered resin etc.But acrylic emulsions preferably, (research centre, Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing produces commodity as the following trade mark that can buy on market: PS9317, polymkeric substance for butyl acrylate), (BASF AG produces S400, be phenylethylene ethylene/propenoic acid ester copolymer), BA163 (research centre, Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing produces, and is the polymkeric substance of ethyl propenoate) etc.These polymkeric substance can use separately, also can two or more mix use.
Described cement is a kind of hydraulic cementing materials, and by modification, cement makes material have waterproof, reprocessing and further toughness reinforcing agglomerative characteristic through the protection of aquation and polymer film forming.
In order further to improve above-mentioned kneading effect, reach better dispersing characteristic, can also comprise 0.5～2 weight part dispersion agent in above-mentioned kneading raw material, described dispersion agent is preferably selected from a kind of or its combination in sulfonate, sulfonated lignin or the polycarboxylate of naphthalenesulfonate formaldehyde condensation compound, condensate of melamine and formaldehyde.
In order to improve the tearing toughness of material, also can in raw material, add the alkali resistance staple fibre, as vinylon fiber, alkali resistant glass fibre, nylon, polypropylene, carbon fiber and mineral fiber type asbestos, wollastonite etc., consumption is preferably 0.4%～1.5% of cement weight.
In above-mentioned kneading raw material, can also comprise the lubricant of 0.4～1.5 weight part and the stablizer of 2～10 weight parts.Lubricant is used for reducing the processing resistance, can also play the effect of antiseized protection.Stablizer helps strengthening the resistance to elevated temperatures of polymkeric substance under particular process and working conditions.Lubricant and stablizer can adopt and can work the liquid or solid that lubricates stabilization, for example low molecular weight polyethylene, solid paraffin, stearate etc. to cement particle and polymer processing.
Preparation is mediated in the raw material of expecting also can be mixed with other auxiliary agent and filler.For example comprise: the water reducer that can reduce the water consumption when mediating; Help stable dispersion agent of cement and emulsion dispersion and tensio-active agent, as low-molecular-weight polyacrylic acid salt class, alkylaryl polyoxyethylene ethers etc.The consumption of auxiliary agent is generally less than mediates 1% of material raw material weight.
Described kneading step carries out with 20～80 rev/mins, preferred 40～80 rev/mins rotating speed under 20～140 ℃, preferred 80～120 ℃ temperature.Kneading is carried out in kneader device, is applicable to that the kneader device of the object of the invention comprises twin shaft vane-type kneader, the tapered kneader of cantilever duplex etc.
By modification, polymkeric substance as properties-correcting agent, its particulate is evenly attached to cement gel and particulate surface, formed elastica, be applied in the cubic network of hydrated cementitious product, greatly changed the mechanical property and the water resistance of cement material, made cement have surface, helped the further toughness reinforcing processing treatment of material than high-adhesion, hydrophobic nature.
When above-mentioned raw materials is mediated, be in cement and adulterant system, to mix polymkeric substance and water, make mixing of materials even through stirring, become the polymer water mud of good fluidity.Polymer particle is evenly dispersed in cement, the adulterant system, cement fast hydration under the effect of 20～140 ℃, preferred 80～120 ℃ temperature and shearing, in this process, part water becomes crystal water, constantly by the combination of cement institute, be present in the cement stone, a part of water becomes volatilizable water, rapidly evaporation.Along with the continuous minimizing of moisture (become crystal water or dehydrate); polymer beads can merge mutually; and evenly cover cement particle surface with auxiliary agent; and combine securely; form viscoelastic and close-burning flexible polymkeric substance particle, network or rete, in the hole of cement stone skeleton.Material becomes cement and mediates material under the effect of shearing, temperature, dehydration, and is standby.
Two, mixing
When mixing, with the kneading material of above-mentioned polymer modification and toughening polymer and supporting material by the cement of mediating in the material: toughening polymer: the supporting material weight ratio is (110～350): 100: plasticate 40～145 ℃ of following blend (＞0～90).
Studies show that, the twice-modified snappiness that can further improve the cement-based waterproof coiled material by toughening polymer, make coiled material in-40～80 ℃ use range, still keep enough ductility, thereby material is not destroyed by various distortion under working conditions, and keep its due fire resistance characteristic.Therefore, water-proof material of the present invention requires toughening polymer pliable and tough all the time or have high-elastic characteristic in the use temperature scope, and requires its rotproofness, weather resistance, has excellent water-resistance, the intensity height, and elongation is big.Can comprise rubber for the concrete toughening polymer of selecting for use, thermoplastic elastomer, thermoplastic resin or rubber plastic blend elastomerics, preferred toughening polymer has isoprene-isobutylene rubber, terpolymer EP rubber; styrene-butadiene rubber(SBR); chloroprene rubber; natural rubber; chlorinatedpolyethylene; chlorosulfonated polyethylene; styrene-butadiene block copolymer; Atactic Polypropelene (APP); polyolefin resin; polyethylene; polyvinyl chloride; and their renewable resource; or its arbitrary combination; preferred polymkeric substance has terpolymer EP rubber; chlorinatedpolyethylene; styrene-butadiene block copolymer; polyethylene and their renewable resource, or its arbitrary combination.
Supporting material is meant that in rubber industry tensile strength, tear strength and the wear resistant that can make rubber obtain a kind of material that obviously improves simultaneously, refer to narrow sense in the present invention can so that to a kind of material of being improved significantly of tensile strength, the tear strength of water-proof material goods.Be applicable to that supporting material of the present invention includes, but is not limited to: carbon black, as oven process carbon black, channel black, thermal black etc.; Silicide is as white carbon black (main component silicon-dioxide), potter's clay, Calucium Silicate powder, anhydrous aluminium silicate etc.; Sulfates is as ammonium sulfate, basic aluminium sulphate, barium sulfate, calcium sulfate etc.; Metal oxide is as magnesium oxide, active zinc flower, titanium dioxide etc.; Resin is as high styrene resin, coumarone indene resin, resol, melamine resin, petroleum resin etc.; And carbonate, as lime carbonate, magnesiumcarbonate etc.Preferred supporting material is carbon black, white carbon black, active zinc flower, lime carbonate, high styrene resin, coumarone indene resin, more preferably carbon black, white carbon black.These supporting materials can use separately, also can two or more mix use.
When mixing, mediate the cement in the material: toughening polymer: the weight ratio of supporting material is (110～350): 100: (＞0～90), preferred (140～200): 100: (20～80) are more preferably (140～170): 100: (30～60).
Can also add other an amount of Synergist S-421 95 when mixing, comprise lubricant, softening agent, anti-aging agent etc., consumption is preferably 0.5～3% (weight).
Mixingly under 40～145 ℃, preferred 100～140 ℃ temperature, carry out.Can be used for rubber mixing machine of the present invention and comprise mill, Banbury mixer etc.
Mixing even back blanking cooling is parked standby under the room temperature.
As require coloured prod, and can when mixing, add pigment, dyestuff, as iron oxide red etc., make color coil, with waterproof and decoration function.
Three, calendering formation
Through the material that above-mentioned operation is prepared from, heat refining on opening rubber mixing machine is after material reaches certain plasticity number, through the rolling press calendering formation.Can be made into the sheet material or the coiled material of various different sizes by requirement of engineering.According to particular requirement, can on rolling press, carry out multiple tire and therebetween tire, to increase the tension and the tear resistance of coiled material, reach the purpose that increases functions of use.
Described tire base can be alkali-free, alkali resistant glass fibre non-woven fabrics, vegetable fibre woven and wool spinning cloth.
In addition, the present invention further provides the cement group water-proofing material of using method for preparing.
Show that after testing by the coiled material of aforesaid method processing and manufacturing, the tensile strength of material reaches 4.0～11.0Mpa; Tension set reaches 200～450%; Angle tear strength reaches 24～55N/cm; Watertightness 0.3Mpa, 90 minutes ne-leakages, low temperature flexibility-20 ℃ freezing 30 minutes Φ 10mm rod flawlesses; Aging resistance is good, wears out 168 hours under (80 ± 2) ℃ condition, and performance index can keep more than 80%.Stripping strength is greater than 25N/25mm after 28 days with low polymer cement ratio sand-cement slurry and base material bonding, and with high polymer cement ratio cement, bonding stitches, and its 28 days stripping strengths are 30N/25mm.
Compare with the water-proof material of prior art, water-proof material provided by the invention has more excellent mechanical property, particularly tensile strength and angle tear strength, and therefore the distortion to basic unit has stronger adaptability, even under the bigger situation of basic unit's distortion, still can be kept perfectly not by drawing crack.
The cement group water-proofing material that obtains according to aforesaid method can be two kinds of forms, does not promptly have tire base and the water-proof material that the tire base is arranged.The cement group water-proofing material of no tire base can require to select the elastomerics or the rubber-plastic elastomer of different qualities according to difference, thereby obtains the water-proof material of different unit elongation.
When adopting cement group water-proofing material of the present invention to lay the waterproof layer of ground or roofing, simple to operate, to the cement basic layer surface require low.Laying is by polymer cement mortar tackiness agent (containing card series (dry mixing) sand-cement slurry as section) is coated on the cement basic layer surface of final set, and again that coiled material or sheet material is auxilliary located in the above, compacting gets final product.
According to water-proof material of the present invention is black or chromatic polymkeric substance waterproof roll and sheet material, and thickness and fabric width can be set according to requirement of engineering.Test shows, it is good that this material and other cement group water-proofing materials are compared the wet strength conservation rate, applicable to the wet basis surface construction, belongs to the environmental type water-proof material.The product permeable watertight, water-intake rate is low, has good impermeabilisation, freeze proof and ageing-resistant performance, long service life.Short construction period requires low to execution conditions.
Water-proof material of the present invention has high low temperature flexibility under-20 ℃, be applicable to that cold district uses.Also can use in high temperature area, in the time of 80 ℃, product is non-foaming, do not trickle, dimensional stability is good, and deformation ratio does not have strict demand less than 2.5% to basic unit or ambient relative humidity.Therefore, the region that water-proof material of the present invention uses is extensive, is applicable under various environment and uses that less being restricted can be promoted the use of.
Cement group water-proofing material provided by the present invention provides with the form of coiled material.The check surface, watertightness is 0.3Mpa, 90 minutes ne-leakages; Tensile strength 4.0～11.0Mpa; Tension set reaches 200～450%; Angle tear strength 24～55N/cm; Low temperature flexibility be-20 ℃, 30 minutes around φ 10mm rod flawless.
From the construction angle, water-proof material provided by the present invention is the waterproof roll of cement based and sheet material etc., the tackiness agent that adopts is a polymer-modified cement mortar, can do, construct on the wet basis face, has solved the difficult problem that general material is difficult to construct on moist basal plane or construction effect is not good.
The waterproof construction that uses water-proof material of the present invention to constitute both can be resisted top-down external impacts again bearing the distortion of top-down string stress of matrix and matrix.
In addition, from environmental angle, the selected starting material of the present invention are the response type of nontoxic material generation or the material of good processing stability, as, cement, mineral admixture, acrylic acid or the like or isoprene-isobutylene rubber or its reworked material etc.; Water-proof material of the present invention is three-waste free discharge in process of production; Constructional method is dried, the cold construction of wet method.The tackiness agent that adopts during laying is a water-based material, does not have any toxic substance volatilization, can avoid second environmental pollution, so water-proof material of the present invention belongs to environmental type.
Describe the present invention in detail below by embodiment.
Performance test methods:
In following examples, tensile strength, angle tear strength, anti-permeability performance detect according to the detection method to rubber-like homogeneous sheet waterproof roll among the CNS GB 18173.1-2000.Low temperature flexibility detects by the product company standard of new technological industry garden, Tianjin Australia gram Technew SA, and method is as follows:
Test tool: cryostat (temperature automatically controlled between 0 ℃～-40 ℃, error is ± 2 ℃); φ 10mm metal bar.
Testing sequence: along coiled material vertically, laterally cut (60 * 20) mm test specimen each 3, with 6 test specimens and diameter is that the metal bar of 10mm is put into-20 ℃ cryostat simultaneously, 1.5 use hand with time doubling in about 2 second along metal bar test specimen in cryostat after hour, whether the test specimen surface that detects by an unaided eye has crackle.
Result evaluation: it is " flawless " that 6 test specimens have 5 equal flawlesses of test specimen can evaluate this coiled material.
Embodiment 1～5
1. the preparation polymer-modified cement is mediated material:
| Raw material type | Weight part |
| Normal silicate water 525# (cement mill, Tianjin) | ????100.00 |
| Water reducer UNF-5 (naphthalenesulfonate formaldehyde condensation compound, Yong Yang water reducer factory) | ????1.00 |
| Polyacrylic emulsion S400 (phenylethylene ethylene/propenoic acid ester copolymer, BASF) | ????9.00 |
| Polyacrylic emulsion 163 (X 4460, Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing) | ????17.00 |
| Polyacrylic emulsion 9317 (butyl acrylate polymkeric substance, Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing) | ????9.00 |
| OP-10 (polyoxyethylene glycol octyl group phenylate, Tianjin chemical assistant factory) | ????0.38 |
| S-3 microcrystal tribasic lead sulfate (3PbO PbSO 4·H 2O, Hengshui Tao Cheng auxiliary chemicals company limited) | ????2.50 |
| Zinic stearas (Shijiazhuang plug specialization worker company limited) | ????2.50 |
| Process water | ????12 |
Technology:
(1) above-mentioned cement, water reducer are dropped into kneader, under 60 rev/mins rotating speed, stir;
(2) with emulsion OP～10 blend thin ups;
(3) will dilute good emulsion and slowly add and stir in the kneader, and be dispersed in uniformly in the emulsion up to material, and form the mobile grout;
(4) begin to heat up after adding stablizer, being heated to temperature is 100 ℃, makes material aquation and dehydration, is about 10% kneading material up to obtaining water ratio;
(5) it is stand-by to reach after the water content requirement discharging cooling.
2. mixing
| Embodiment | ????1 | ????2 | ????3 | ????4 | ????5 |
| Mediate material | 846.04 | ?725.07 | ?480.08 | ?531.12 | ?440.31 |
| N330 carbon black (Tianjin carbon plant) | 60.75 | ?120.0 | ?240.0 | ?----- | ?----- |
| White carbon black (Qingdao Rhodia Ltd) | ------ | ?----- | ?----- | ?240.00 | ?240.00 |
| Coumarone (multipolymer of cumarone and indenes, Zichuan, Zibo City state remittance chemical industry company limited) | 12.0 | ?12.0 | ?12.0 | ?12.00 | ?12.00 |
| Red iron oxide (Xinxiang dying head factory) | 30.0 | ?30.0 | ?30.0 | ?30.00 | ?30.00 |
| RD (2,2,4-trimethylammonium-1,2-dihyaroquinoline, Tianjin Mao Feng chemical industry company limited) | 3.0 | ?3.0 | ?3.0 | ?3.00 | ?3.00 |
| Paraffin (Tianjin chemical reagent factory) | 6.0 | ?6.0 | ?6.0 | ?6.00 | ?6.00 |
| DOP (phthalic acid diisoamyl monooctyl ester, Tianjin chemical reagent factory) | 25.0 | ?25.0 | ?25.0 | ?------ | ?75.00 |
| SBS-YH801 (styrene/butadiene copolymers, Yueyang petrochemical industry) | 100.0 | ?100.0 | ?100.0 | ?------ | ?300.00 |
| CPE-140B (ethene polymers, AsiaSat chemical plant, Shandong) | 200.0 | ?200.0 | ?200.0 | ?300.00 | ?------ |
Technology:
(1) CPE and/or SBS, DOP is mixing in Banbury mixer (manufacturing of Dalian conventional rubber company limited) in advance, 110～130 ℃ of temperature, 5 minutes time;
(2) sizing material that Banbury mixer is discharged is made rubber unvulcanizate homogeneous sheet in the temperatures of 70～80 ℃ of mills (Bingshan Rubber-Plastic Co., Ltd., Dalian's manufacturing), and is standby;
(3) kneader is dropped in the homogeneous sheet metering back of rubber unvulcanizate, again other powder is once dropped in the kneader thorough mixing under 130～145 ℃ temperature, 5～7 minutes time;
(4) compound that Banbury mixer is discharged is made the work in-process sheet material in the temperatures of 70～80 ℃ of mills, and is standby.
3. moulding
With rubber unvulcanizate heat refining on opening rubber mixing machine, 70～80 ℃ of roller temperature, after having certain plasticity number, 60～65 ℃ of glue temperature, for rolling press (manufacturing of Dalian rubber and plastics machine factory) calendering formation, the calendering pusher side, go up, the central roll temperature is respectively 50～65 ℃, 60～80 ℃, 55～70 ℃, calendering formation thickness is that 1.2mm, width are the coiled material 1～5 of 1000mm.
Embodiment 6～8
Adopt the preparation method of embodiment 1～3, mixing in the N330 carbon black with white carbon black (Qingdao Rhodia Ltd) replacement, preparation thickness is that 1.2mm, width are the coiled material 6～8 of 1000mm.
Embodiment 9～11
1 rubber unvulcanizate covers fiberglass gridding cloth I, II among the employing embodiment on rolling press, III (Jiangsu nine ancient cooking vessel groups) obtains thickness 1.5mm, the coiled material 9～11 of width 1000mm.
During the key technical indexes performance of the coiled material 1～9 that records according to above-mentioned testing method is listed in the table below.
Annotate: * represents that its unit is (N/5cm * 20cm).
Industrial applicability
Method provided by the present invention can be used for suitability for industrialized production, and the product of producing can be used for the water-proofing treatment in the engineerings such as architectural engineering, hydraulic engineering and municipal works.
Claims (10)
1. a method for preparing enhancement type fleximer base waterproof material comprises the steps:
(1) with hydraulic cement, be selected from aqueous polymer dispersion, water-soluble polymers or redispersible powdered resin or the polymer materials of its arbitrary combination, with water, with cement: the weight ratio of polymkeric substance is 100: (5～150) are to mediate under 20～140 ℃ the condition at 20～80 rev/mins, temperature, reach 5～20% kneading material until obtaining water ratio;
(2) with the cement of described kneading material in toughening polymer and supporting material are expected with kneading: toughening polymer: supporting material (110～350): 100: (＞0～90) weight ratio is mixing under 40～145 ℃, toughness reinforcing, calendering or extrusion moulding are sheet material or coiled material afterwards, and described toughening polymer is selected from rubber, thermoplastic elastomer, thermoplastic resin or its combination.
2. the method for claim 1, wherein, used polymkeric substance is selected from acrylic emulsions in kneading step (1), a kind of or its arbitrary combination in styrene-butadiene latex, ethylene-vinyl acetate copolymer, vinyl acetate between to for plastic-tertiary carbon acid esters emulsion, chlorine partial emulsion, vinyl chloride-vinyl acetate-acrylate copolymer emulsion, vinyl acetate emulsion, the chlorine latex.
3. the method for claim 1, wherein in toughness reinforcing step (2), cement: toughening polymer: the weight ratio of supporting material is (140～200): 100: (20～80), more preferably (140～170): 100: (30～60).
4. the method for claim 1, wherein, used toughening polymer is selected from rubber, thermoplastic elastomer, thermoplastic resin or its arbitrary combination in toughness reinforcing step (2), comprises a kind of or its arbitrary combination in natural rubber, styrene-butadiene rubber(SBR), divinyl rubber, polyisoprene rubber, isoprene-isobutylene rubber, chloroprene rubber, paracril, epichlorohydrin rubber, thiorubber, acrylic elastomer, chlorinatedpolyethylene, chlorosulfonated polyethylene, ethylene-propylene rubber(EPR), styrene-butadiene block copolymer, Atactic Polypropelene, polyethylene or their renewable resource.
5. the method for claim 1, wherein described supporting material is selected from a kind of or its arbitrary combination in the following material: carbon black, as oven process carbon black, channel black, thermal black etc.; Silicide is as white carbon black, potter's clay, Calucium Silicate powder, anhydrous aluminium silicate etc.; Sulfates is as ammonium sulfate, basic aluminium sulphate, barium sulfate, calcium sulfate etc.; Metal oxide is as magnesium oxide, active zinc flower, titanium dioxide etc.; Resin is as high styrene resin, coumarone indene resin, resol, melamine resin, petroleum resin etc.; And carbonate, as lime carbonate, magnesiumcarbonate etc.; Preferred supporting material is carbon black, white carbon black, active zinc flower, lime carbonate, high styrene resin, coumarone indene resin, more preferably carbon black, white carbon black.
6. the method for claim 1, wherein described kneading is to carry out under the temperature at 80～120 ℃, 40～60 rev/mins the stirring velocity.
7. the fortifying fibre that also contains 0.4～1.5 weight part in the method for claim 1, wherein described kneading material.
8. the method for claim 1, wherein, in the described hydraulic cement 20～50% replaced by the mineral admixture of equivalent, and described mineral admixture is selected from a kind of or its arbitrary combination in flyash, silicon ash, volcanic ash, zeolite powder, metakaolin, slag powders, calcium-enriched liquid state slag powder, the phosphorus slag powder.
9. the method for claim 1, wherein described calendering formation has the tire base or does not have the tire base.
10. the fleximer base waterproof material of the described method preparation of aforementioned any one claim.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101245236B (en) * | 2008-02-21 | 2012-10-10 | 青岛青平新型建材有限公司 | High-performance powder waterproofing agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101245236B (en) * | 2008-02-21 | 2012-10-10 | 青岛青平新型建材有限公司 | High-performance powder waterproofing agent |
| CN102504563A (en) * | 2011-10-18 | 2012-06-20 | 青阳县三宝塑业有限责任公司 | Functional accessory ingredient for plastic processing and preparation method thereof |
| CN108529955A (en) * | 2018-05-15 | 2018-09-14 | 佛山市汇江混凝土有限公司 | A kind of corrosion-resistant impervious concrete material and preparation method thereof |
| CN108948810A (en) * | 2018-06-08 | 2018-12-07 | 深圳市奇信建设集团股份有限公司 | Gradient function polymer cement waterproof paint, waterproof coating and preparation method thereof |
| CN111378329A (en) * | 2018-12-27 | 2020-07-07 | 中路高科交通检测检验认证有限公司 | Polymer cement elastic protective coating composition and homogenization method |
| CN110256859A (en) * | 2019-06-20 | 2019-09-20 | 成都新柯力化工科技有限公司 | A kind of modified asphalt waterproof coiled material and preparation method of selfreparing |
| CN110698799A (en) * | 2019-08-07 | 2020-01-17 | 大茂环保新材料股份有限公司 | Prefabricated elastic sheet and preparation method thereof |
| CN110581021A (en) * | 2019-09-06 | 2019-12-17 | 安徽赛福电子有限公司 | Metallized film for film capacitor |
| CN111251441A (en) * | 2020-01-19 | 2020-06-09 | 宁波亘新建材科技有限公司 | Magnesium phosphate particle cement composite plate and preparation method and application thereof |
| CN111576207A (en) * | 2020-05-26 | 2020-08-25 | 河南省交通规划设计研究院股份有限公司 | Bridge drip structure |
| CN112745069A (en) * | 2020-12-10 | 2021-05-04 | 泗县邺霖建筑科技有限公司 | Cement-based waterproof material and preparation process thereof |
| CN116715487A (en) * | 2020-12-31 | 2023-09-08 | 苏州佳固士新材料科技有限公司 | Modified cement-based grouting material and application thereof |
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