CN111073313A - Acid and alkali resistant elastomer modified asphalt waterproof coiled material and preparation method thereof - Google Patents
Acid and alkali resistant elastomer modified asphalt waterproof coiled material and preparation method thereof Download PDFInfo
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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
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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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
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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
- 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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Abstract
The invention provides an acid and alkali resistant elastomer modified asphalt waterproof coiled material which comprises a modified asphalt layer, wherein the modified asphalt layer comprises matrix asphalt, graphene oxide, basic bismuth nitrate, N-methylmorpholine-N-oxide, MA-100 carbon black, urea and palm wax emulsion; the graphene oxide has the purity of 99.1 percent, the thickness of 0.55-0.82nm, the diameter of 0.54 mu m, 3-5 layers and the content of metal impurities of less than 10 ppm; the invention also provides a preparation method thereof, which comprises banburying at 162 ℃ and under 0.12MPa, and ultrasonic activation; the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good saline and alkali corrosion resistance, has strong adhesive force on the surfaces of various metals, concrete and plastics, is not easy to fall off, has good abrasion resistance and folding resistance, can be folded at multiple angles, greatly reduces the number of spliced parts, and is beneficial to improving the construction efficiency and saving the cost.
Description
Technical Field
The invention belongs to the technical field of waterproof materials, relates to an acid and alkali resistant elastomer modified asphalt waterproof coiled material, and particularly relates to an acid and alkali resistant elastomer modified asphalt waterproof coiled material and a preparation method thereof.
Background
At present, the acid and alkali resistant elastomer modified asphalt waterproof coiled materials on the market do not have good bending resistance, the defect directly results in that the elastomer modified asphalt waterproof coiled materials cannot be well applied to plants, workshops and the like with high acid and alkali resistance requirements and more corners, and can only adopt a splicing mode to prevent water, so that the anti-seepage effect is greatly reduced after splicing, the construction engineering amount and the consumption of the waterproof coiled materials can be invisibly increased, and the energy waste and the cost increase are caused.
In view of the above situation, the inventor of the present invention has conducted long-term research and summary on the preparation method of the elastomer modified asphalt waterproof coiled material in many years of practice, and preferably selects an acid and alkali resistant elastomer modified asphalt waterproof coiled material and a preparation method thereof.
Disclosure of Invention
The invention provides an acid and alkali resistant elastomer modified asphalt waterproof coiled material and a preparation method thereof, which aim to realize the following purposes:
(1) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good saline and alkali corrosion resistance effect, and does not have the phenomenon of cracking and bubbling after being soaked in acid and alkali;
(2) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has strong adhesive force on the surfaces of various metals, concrete and plastics, and is not easy to fall off;
(3) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good abrasion resistance and folding resistance, can be folded at multiple angles, greatly reduces the number of splicing parts, and is beneficial to improving the construction efficiency and saving the cost;
(4) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good high-temperature stability.
In order to solve the technical problems, the following technical scheme is adopted:
the utility model provides an acid and alkali-resistant elastomer modified asphalt waterproofing membrane, includes modified asphalt layer, modified asphalt layer include: matrix asphalt, graphene oxide, basic bismuth nitrate, N-methylmorpholine-N-oxide, MA-100 carbon black, urea and palm wax emulsion.
As a preferred technical solution of the present invention, the modified asphalt layer further comprises: styrene butadiene copolymer, styrene butadiene rubber, coumarone resin, tackifier, silicone rubber, magnesia, melamine phosphate, diethanolamine, barium sulfate, plasticizer, kaolin powder, activated carbon, polyurethane, polyether polyol, butyl stearate, anti-aging agent and light silicon micropowder.
As a preferable technical scheme of the invention, the modified asphalt layer comprises the following components in parts by weight: 120-150 parts of matrix asphalt, 50-55 parts of styrene butadiene copolymer, 40-55 parts of styrene butadiene rubber, 5-15 parts of graphene oxide, 3-9 parts of basic bismuth nitrate, 2-5 parts of N-methylmorpholine-N-oxide, 5-12 parts of coumarone resin, 10-20 parts of tackifier, 16-35 parts of silicone rubber, 6-8 parts of MA-100 carbon black, 10-15 parts of urea, 5-9 parts of magnesia, 2-5 parts of melamine phosphate, 6-10 parts of diethanolamine, 4-9 parts of barium sulfate, 6-10 parts of plasticizer, 3-8 parts of kaolin powder, 2-6 parts of activated carbon, 10-20 parts of polyurethane, 10-25 parts of polyether polyol, 9-15 parts of butyl stearate and 10-15 parts of palm wax emulsion, 3-10 parts of anti-aging agent and 10-25 parts of light silica micropowder.
As a preferable technical scheme of the invention, the modified asphalt layer comprises the following components in parts by weight: 150 parts of matrix asphalt, 50 parts of styrene butadiene copolymer, 55 parts of styrene butadiene rubber, 5 parts of graphene oxide, 9 parts of basic bismuth nitrate, 2 parts of N-methylmorpholine-N-oxide, 12 parts of coumarone resin, 10 parts of tackifier, 35 parts of silicone rubber, 6 parts of MA-100 carbon black, 15 parts of urea, 5 parts of magnesite, 5 parts of melamine phosphate, 6 parts of diethanolamine, 9 parts of barium sulfate, 6 parts of plasticizer, 8 parts of kaolin powder, 2 parts of activated carbon, 20 parts of polyurethane, 10 parts of polyether polyol, 15 parts of butyl stearate, 10 parts of palm wax emulsion, 10 parts of anti-aging agent and 10 parts of light silicon micropowder.
As a preferable technical scheme of the invention, the graphene oxide has the purity of 99.1 percent, the thickness of 0.55-0.82nm, the diameter of 0.54 mu m, 3-5 layers and the content of metal impurities of less than 10 ppm.
As a preferable technical scheme of the invention, the urea has the granularity of 1.85-2.00mm and the water content of 0.11 percent.
As a preferable technical scheme of the invention, the coumarone resin has the content of 92.65 percent, the CAS number of 9003-74-1, the softening point of 100-120 and the average molecular weight of 6300-6600;
the solid content of the palm wax emulsion is 29.8%, the viscosity is 94.6S, the pH value is 6.0-8.0, and the average particle size is 0.35-0.45 um.
As a preferable technical scheme of the invention, the content of the basic bismuth nitrate is 79.2 percent, and the CAS number is 1304-85-4;
the CAS number of the N-methylmorpholine-N-oxide is 7529-22-8.
A preparation method of an acid and alkali resistant elastomer modified asphalt waterproof coiled material comprises the following steps:
a) mixing matrix asphalt, styrene-butadiene copolymer, styrene-butadiene rubber, graphene oxide, basic bismuth nitrate, coumarone resin, silicon rubber, MA-100 carbon black, urea, magnesia, melamine phosphate, diethanolamine, barium sulfate, a plasticizer, kaolin powder, polyurethane, polyether polyol, butyl stearate, an anti-aging agent and light silica micropowder, adding 95% ethanol accounting for 4-5% of the total mass of the raw materials during mixing, carrying out banburying treatment, mixing by an internal mixer, carrying out in a closed environment, and breaking bridges among the originally hard components to deform and soften by using a strong compression and stirring mode of the internal mixer, wherein the temperature of the internal mixer is 164 ℃ and the pressure is 0.12MPa during banburying;
b) banburying for 50min, adding palm wax emulsion and N-methylmorpholine-N-oxide, stirring for 12min, and activating under ultrasonic action for 43 min;
c) adding tackifier and active carbon, dispersing fully, shearing to make it uniformly, cooling to 112 deg.C, and making the oil-immersed material flow into oil-immersed tank.
As a preferable technical scheme of the invention, the ultrasonic frequency is 154KHZ, the power is 2245W, and the temperature is 92 ℃.
By adopting the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good saline and alkali corrosion resistance, and does not have the phenomenon of cracking and bubbling after being soaked in 4% sulfuric acid for 24 hours and 25% sodium hydroxide for 24 hours;
(2) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has strong adhesive force on the surfaces of various metals, concrete and plastics, and is not easy to fall off;
the acid and alkali resistant elastomer modified asphalt waterproof coiled material has the joint peeling strength of 4.3-4.5N/mm with the aluminum surface,
the peel strength of the joint between the acid and alkali resistant elastomer modified asphalt waterproof coiled material and the surface of a common concrete material is 4.8-5.1N/mm;
the acid and alkali resistant elastomer modified asphalt waterproof coiled material has the peel strength of 4.0-4.2N/mm with the surface joint of a reinforcing steel bar;
the joint peeling strength of the acid and alkali resistant elastomer modified asphalt waterproof coiled material and the surface of a plastic material is 4.2-4.5N/mm;
(3) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good abrasion resistance and folding resistance, can be folded at multiple angles, greatly reduces the number of splicing parts, and is beneficial to improving the construction efficiency and saving the cost; the folding endurance times are 134 and 138;
(4) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good high-temperature stability, after high-temperature treatment, the tensile force retention rate is 90.8-91.4%, the elongation rate at the maximum tensile force is 396-398%, the low-temperature flexibility is-35 to-33 ℃, the fracture does not occur, the dimensional change rate is 0.12-0.21%, and the elongation rate retention rate is 92.1-94.1%.
Detailed Description
Example 1 acid and alkali resistant elastomer modified asphalt waterproofing membrane
The acid and alkali resistant elastomer modified asphalt waterproof coiled material is characterized in that polyester tire base cloth is arranged in the middle, and a modified asphalt layer, a non-woven fabric layer, a polymer self-adhesive layer and an isolation paper layer are sequentially arranged from top to bottom;
the modified asphalt layer comprises the following raw materials: matrix asphalt, styrene butadiene copolymer, styrene butadiene rubber, graphene oxide, basic bismuth nitrate, N-methylmorpholine-N-oxide, coumarone resin, a tackifier, silicon rubber, MA-100 carbon black, urea, magnesia, melamine phosphate, diethanolamine, barium sulfate, a plasticizer, kaolin powder, activated carbon, polyurethane, polyether polyol, butyl stearate, palm wax emulsion, an anti-aging agent and light silicon micropowder.
The modified asphalt layer comprises the following components in parts by weight: 120-150 parts of matrix asphalt, 50-55 parts of styrene butadiene copolymer, 40-55 parts of styrene butadiene rubber, 5-15 parts of graphene oxide, 3-9 parts of basic bismuth nitrate, 2-5 parts of N-methylmorpholine-N-oxide, 5-12 parts of coumarone resin, 10-20 parts of tackifier, 16-35 parts of silicone rubber, 6-8 parts of MA-100 carbon black, 10-15 parts of urea, 5-9 parts of magnesia, 2-5 parts of melamine phosphate, 6-10 parts of diethanolamine, 4-9 parts of barium sulfate, 6-10 parts of plasticizer, 3-8 parts of kaolin powder, 2-6 parts of activated carbon, 10-20 parts of polyurethane, 10-25 parts of polyether polyol, 9-15 parts of butyl stearate and 10-15 parts of palm wax emulsion, 3-10 parts of anti-aging agent and 10-25 parts of light silica micropowder.
Specifically, in this embodiment, the modified asphalt layer includes, by weight: 120 parts of matrix asphalt, 55 parts of styrene-butadiene copolymer, 40 parts of styrene-butadiene rubber, 15 parts of graphene oxide, 3 parts of basic bismuth nitrate, 5 parts of N-methylmorpholine-N-oxide, 5 parts of coumarone resin, 20 parts of tackifier, 16 parts of silicone rubber, 8 parts of MA-100 carbon black, 10 parts of urea, 9 parts of magnesite, 2 parts of melamine phosphate, 10 parts of diethanolamine, 4 parts of barium sulfate, 10 parts of plasticizer, 3 parts of kaolin powder, 6 parts of activated carbon, 10 parts of polyurethane, 25 parts of polyether polyol, 9 parts of butyl stearate, 15 parts of palm wax emulsion, 3 parts of anti-aging agent and 25 parts of light silicon micropowder.
The matrix asphalt is 10# and is purchased from Jinluno chemical industry Co., Ltd;
the graphene oxide has the purity of 99.1 percent, the thickness of 0.55-0.82nm, the diameter of 0.54 mu m, 3-5 layers and the content of metal impurities of less than 10 ppm;
the urea has the granularity of 1.85-2.00mm, the water content of 0.11 percent and the product number of 1-11-110;
the coumarone resin has the content of 92.65 percent, the CAS number of 9003-74-1, the softening point of 100-6600 and the average molecular weight of 6300-6600;
the MA-100 carbon black has a CAS number of 1333-86-4;
the content of the basic bismuth nitrate is 79.2 percent, and the CAS number is 1304-85-4;
the CAS number of the N-methylmorpholine-N-oxide is 7529-22-8;
the solid content of the palm wax emulsion is 29.8%, the viscosity is 94.6S, the pH value is 6.0-8.0, and the average particle size is 0.35-0.45 um.
Example 2 acid and alkali resistant elastomer modified asphalt waterproofing membrane
The modified asphalt layer comprises the following components in parts by weight: 130 parts of matrix asphalt, 53 parts of styrene-butadiene copolymer, 42 parts of styrene-butadiene rubber, 11 parts of graphene oxide, 7 parts of basic bismuth nitrate, 3 parts of N-methylmorpholine-N-oxide, 8 parts of coumarone resin, 12 parts of tackifier, 22 parts of silicone rubber, 7 parts of MA-100 carbon black, 13 parts of urea, 6 parts of magnesite, 5 parts of melamine phosphate, 8 parts of diethanolamine, 5 parts of barium sulfate, 7 parts of plasticizer, 7 parts of kaolin powder, 4 parts of activated carbon, 14 parts of polyurethane, 21 parts of polyether polyol, 9 parts of butyl stearate, 14 parts of palm wax emulsion, 9 parts of anti-aging agent and 23 parts of light silicon micropowder. The same procedure as in example 1 was repeated except that the amount of the component (B) was changed.
Example 3 acid and alkali resistant elastomer modified asphalt waterproofing membrane
The modified asphalt layer comprises the following components in parts by weight: 150 parts of matrix asphalt, 50 parts of styrene butadiene copolymer, 55 parts of styrene butadiene rubber, 5 parts of graphene oxide, 9 parts of basic bismuth nitrate, 2 parts of N-methylmorpholine-N-oxide, 12 parts of coumarone resin, 10 parts of tackifier, 35 parts of silicone rubber, 6 parts of MA-100 carbon black, 15 parts of urea, 5 parts of magnesite, 5 parts of melamine phosphate, 6 parts of diethanolamine, 9 parts of barium sulfate, 6 parts of plasticizer, 8 parts of kaolin powder, 2 parts of activated carbon, 20 parts of polyurethane, 10 parts of polyether polyol, 15 parts of butyl stearate, 10 parts of palm wax emulsion, 10 parts of anti-aging agent and 10 parts of light silicon micropowder. The same procedure as in example 1 was repeated except that the amount of the component (B) was changed.
Example 4 preparation method of acid and alkali resistant elastomer modified asphalt waterproof coiled material
The preparation method of the acid and alkali resistant elastomer modified asphalt waterproof coiled material comprises the following steps:
a) the components are weighed according to the parts by weight in the examples.
b) Mixing matrix asphalt, styrene-butadiene copolymer, styrene-butadiene rubber, graphene oxide, basic bismuth nitrate, coumarone resin, silicon rubber, MA-100 carbon black, urea, magnesia, melamine phosphate, diethanolamine, barium sulfate, a plasticizer, kaolin powder, polyurethane, polyether polyol, butyl stearate, an anti-aging agent and light silica micropowder, adding 95% ethanol accounting for 4-5% of the total mass of the raw materials during mixing, carrying out banburying treatment, mixing by an internal mixer, carrying out in a closed environment, and breaking bridges among the originally hard components to deform and soften by using a strong compression and stirring mode of the internal mixer, wherein the temperature of the internal mixer is 164 ℃ and the pressure is 0.12MPa during banburying.
c) Banburying for 50min, adding palm wax emulsion and N-methylmorpholine-N-oxide, stirring for 12min, and activating under ultrasonic action for 43 min.
The ultrasonic frequency is 154KHZ, the power is 2245W, and the temperature is 92 ℃.
d) Adding tackifier and active carbon, dispersing fully, shearing to make it uniformly, cooling to 112 deg.C, and making the oil-immersed material flow into oil-immersed tank.
e) Spreading the polyester base fabric into an oil immersion tank, performing oil immersion coating, controlling the thickness of the oil immersion coating layer, cooling, vertically covering the non-woven fabric layer, the polymer self-adhesive layer and the isolation paper layer, prepressing, curling, packaging and warehousing.
According to the detection method specified by the national standard, the acid and alkali resistant elastomer modified asphalt waterproof coiled material obtained in the embodiments 1 to 3 of the invention has the following detection results:
table 1: the result of the detection
Remarking: (a) treatment for acid and alkali resistance: soaking in 4% sulfuric acid for 24 hr, and soaking in 25% sodium hydroxide for 24 hr;
(b) treatment adopted in the high temperature stability test: 80 ℃ and 168 h.
From the above table, it can be seen that:
the acid and alkali resistant elastomer modified asphalt waterproof coiled material of the embodiments 1 to 3 of the invention has the following properties that:
(1) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good saline and alkali corrosion resistance, and does not have the phenomenon of cracking and bubbling after being soaked in 4% sulfuric acid for 24 hours and 25% sodium hydroxide for 24 hours;
(2) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has strong adhesive force on the surfaces of various metals, concrete and plastics, and is not easy to fall off;
the acid and alkali resistant elastomer modified asphalt waterproof coiled material has the joint peeling strength of 4.3-4.5N/mm with the aluminum surface,
the peel strength of the joint between the acid and alkali resistant elastomer modified asphalt waterproof coiled material and the surface of a common concrete material is 4.8-5.1N/mm;
the acid and alkali resistant elastomer modified asphalt waterproof coiled material has the peel strength of 4.0-4.2N/mm with the surface joint of a reinforcing steel bar;
the joint peeling strength of the acid and alkali resistant elastomer modified asphalt waterproof coiled material and the surface of a plastic material is 4.2-4.5N/mm;
(3) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good abrasion resistance and folding resistance, can be folded at multiple angles, greatly reduces the number of splicing parts, and is beneficial to improving the construction efficiency and saving the cost; the folding endurance times are 134 and 138;
(4) the acid and alkali resistant elastomer modified asphalt waterproof coiled material has good high-temperature stability, after high-temperature treatment, the tensile force retention rate is 90.8-91.4%, the elongation rate at the maximum tensile force is 396-398%, the low-temperature flexibility is-35 to-33 ℃, the fracture does not occur, the dimensional change rate is 0.12-0.21%, and the elongation rate retention rate is 92.1-94.1%.
All percentages used herein are weight percentages and all ratios described herein are mass ratios, unless otherwise indicated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (10)
1. An acid and alkali resistant elastomer modified asphalt waterproof coiled material is characterized in that,
acid and alkali-resistant elastomer modified asphalt waterproof coiled material comprises a modified asphalt layer, wherein the modified asphalt layer comprises: matrix asphalt, graphene oxide, basic bismuth nitrate, N-methylmorpholine-N-oxide, MA-100 carbon black, urea and palm wax emulsion.
2. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 1,
the modified asphalt layer further comprises: styrene butadiene copolymer, styrene butadiene rubber, coumarone resin, tackifier, silicone rubber, magnesia, melamine phosphate, diethanolamine, barium sulfate, plasticizer, kaolin powder, activated carbon, polyurethane, polyether polyol, butyl stearate, anti-aging agent and light silicon micropowder.
3. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 2,
the modified asphalt layer comprises the following components in parts by weight: 120-150 parts of matrix asphalt, 50-55 parts of styrene butadiene copolymer, 40-55 parts of styrene butadiene rubber, 5-15 parts of graphene oxide, 3-9 parts of basic bismuth nitrate, 2-5 parts of N-methylmorpholine-N-oxide, 5-12 parts of coumarone resin, 10-20 parts of tackifier, 16-35 parts of silicone rubber, 6-8 parts of MA-100 carbon black, 10-15 parts of urea, 5-9 parts of magnesia, 2-5 parts of melamine phosphate, 6-10 parts of diethanolamine, 4-9 parts of barium sulfate, 6-10 parts of plasticizer, 3-8 parts of kaolin powder, 2-6 parts of activated carbon, 10-20 parts of polyurethane, 10-25 parts of polyether polyol, 9-15 parts of butyl stearate and 10-15 parts of palm wax emulsion, 3-10 parts of anti-aging agent and 10-25 parts of light silica micropowder.
4. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 2,
the modified asphalt layer comprises the following components in parts by weight: 150 parts of matrix asphalt, 50 parts of styrene butadiene copolymer, 55 parts of styrene butadiene rubber, 5 parts of graphene oxide, 9 parts of basic bismuth nitrate, 2 parts of N-methylmorpholine-N-oxide, 12 parts of coumarone resin, 10 parts of tackifier, 35 parts of silicone rubber, 6 parts of MA-100 carbon black, 15 parts of urea, 5 parts of magnesite, 5 parts of melamine phosphate, 6 parts of diethanolamine, 9 parts of barium sulfate, 6 parts of plasticizer, 8 parts of kaolin powder, 2 parts of activated carbon, 20 parts of polyurethane, 10 parts of polyether polyol, 15 parts of butyl stearate, 10 parts of palm wax emulsion, 10 parts of anti-aging agent and 10 parts of light silicon micropowder.
5. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 1,
the graphene oxide has the purity of 99.1 percent, the thickness of 0.55-0.82nm, the diameter of 0.54 mu m, 3-5 layers and the content of metal impurities of less than 10 ppm.
6. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 1,
the particle size of the urea is 1.85-2.00mm, and the water content is 0.11%.
7. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 1,
the coumarone resin has the content of 92.65 percent, the CAS number of 9003-74-1, the softening point of 100-6600 and the average molecular weight of 6300-6600;
the solid content of the palm wax emulsion is 29.8%, the viscosity is 94.6S, the pH value is 6.0-8.0, and the average particle size is 0.35-0.45 um.
8. The acid and alkali resistant elastomer modified asphalt waterproofing membrane of claim 1,
the content of the basic bismuth nitrate is 79.2 percent, and the CAS number is 1304-85-4;
the CAS number of the N-methylmorpholine-N-oxide is 7529-22-8.
9. A preparation method of an acid and alkali resistant elastomer modified asphalt waterproof coiled material, which is characterized in that,
the preparation method of the acid and alkali resistant elastomer modified asphalt waterproof coiled material comprises the following steps:
a) mixing matrix asphalt, styrene-butadiene copolymer, styrene-butadiene rubber, graphene oxide, basic bismuth nitrate, coumarone resin, silicon rubber, MA-100 carbon black, urea, magnesia, melamine phosphate, diethanolamine, barium sulfate, a plasticizer, kaolin powder, polyurethane, polyether polyol, butyl stearate, an anti-aging agent and light silica micropowder, adding 95% ethanol accounting for 4-5% of the total mass of the raw materials during mixing, carrying out banburying treatment, mixing by an internal mixer, carrying out in a closed environment, and breaking bridges among the originally hard components to deform and soften by using a strong compression and stirring mode of the internal mixer, wherein the temperature of the internal mixer is 164 ℃ and the pressure is 0.12MPa during banburying;
b) banburying for 50min, adding palm wax emulsion and N-methylmorpholine-N-oxide, stirring for 12min, and activating under ultrasonic action for 43 min;
c) adding tackifier and active carbon, dispersing fully, shearing to make it uniformly, cooling to 112 deg.C, and making the oil-immersed material flow into oil-immersed tank.
10. The method for preparing acid and alkali resistant elastomer modified asphalt waterproof coiled material according to claim 9,
the ultrasonic frequency is 154KHZ, the power is 2245W, and the temperature is 92 ℃.
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| CN112592694A (en) * | 2021-03-02 | 2021-04-02 | 华丰防水材料股份有限公司 | Acid and alkali resistant elastomer modified asphalt waterproof coiled material and preparation method thereof |
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| CN112592694A (en) * | 2021-03-02 | 2021-04-02 | 华丰防水材料股份有限公司 | Acid and alkali resistant elastomer modified asphalt waterproof coiled material and preparation method thereof |
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Application publication date: 20200428 |
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