CN111334103B - Non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature - Google Patents
Non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature Download PDFInfo
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Abstract
The invention provides a non-cured rubber asphalt waterproof coating capable of realizing low-temperature spraying, which comprises 200 parts by mass of petroleum asphalt 160-; 5-10 parts of No. 1 rubber modifier; 8-20 parts of No. 2 rubber modifier; 4-5 parts of adhesion promoter; 1-2 parts of an antioxidant; 1-2 parts of ultraviolet absorbent; 20-40 parts by mass of a filler; 2-4 parts of a dispersing agent and 10-20 parts of a composite thixotropic regulator, wherein the composite thixotropic regulator is prepared by heating, mixing and activating 15-25 parts of hydrophobic modified polyamide wax, 5-10 parts of bentonite 1, 15-20 parts of bentonite 2 and 100 parts of hydrogenated castor oil. The non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature can greatly reduce the construction spraying temperature, compared with the spraying construction temperature of more than 130 ℃ of common non-cured waterproof coatings, the spraying construction temperature of the formula product can be reduced to 70-80 ℃, the heating temperature and energy consumption during construction can be greatly reduced, and the potential safety hazard during construction can be effectively avoided.
Description
Technical Field
The invention relates to a non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature, belonging to the field of manufacturing of waterproof coatings.
Technical Field
The non-cured rubber asphalt waterproof coating is used as a part of a common composite waterproof system matched with an SBS modified asphalt waterproof coiled material, has wide application prospect in the current domestic waterproof material market, and is widely applied to the composite waterproof system for bonding modified asphalt coiled materials, however, due to the high-adhesion non-cured technical design of the material, blade coating or spraying construction is generally required to be carried out when the construction is carried out by heating to more than 150 ℃, so that the construction convenience is greatly reduced, and the harm to the environment and the safety is caused by adopting high-temperature heating construction, therefore, the problem to be solved urgently by various waterproof material manufacturers at present is solved by reducing the construction temperature of the non-cured rubber asphalt waterproof coating. The invention patent CN105885693A discloses a non-cured rubber asphalt waterproof coating capable of reducing the construction temperature to below 130 ℃, which is mainly implemented by adopting the structural adjustment of a formula to reduce the comprehensive viscosity of a system, but the construction temperature reduction range is insufficient, and the problem of overhigh construction temperature cannot be fundamentally solved.
Disclosure of Invention
Aiming at the problem that the construction temperature of the existing non-cured rubber asphalt waterproof material is too high, the invention adopts a mode of low-viscosity basic formula, thickening of a thixotropic system and thickening of a tackifying system to improve the construction viscosity of the formula under the condition of low temperature, and simultaneously adopts a scheme of adding a composite thixotropic system to improve the high-temperature resistant effect of the formula, so that the spraying or blade coating construction temperature of the waterproof material can be reduced to 70-80 ℃, the high-temperature resistant effect reaches more than 60 ℃, and the construction convenience and the construction safety of the formula are greatly improved.
In order to solve the problems, the invention discloses a non-cured rubber asphalt waterproof coating capable of being sprayed and constructed at low temperature, which is realized by the following technical scheme.
The non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature is characterized by comprising the following components in parts by weight: the raw material formula comprises 200 parts by mass of petroleum asphalt 160-; 5-10 parts of No. 1 rubber modifier; 8-20 parts of No. 2 rubber modifier; 4-5 parts of adhesion promoter; 1-2 parts of an antioxidant; 1-2 parts of ultraviolet absorbent; 20-40 parts by mass of a filler; 2-4 parts of dispersant and 10-20 parts of composite thixotropic regulator.
Preferably, the non-curing rubber asphalt waterproof coating capable of being sprayed at low temperature is characterized in that the petroleum asphalt is a mixture of naphthenic petroleum asphalt with the number of 70# and naphthenic petroleum asphalt with the number of 90#, the mixing ratio is preferably 2:1 to 4:1, and the penetration detection value after mixing is 80-110. The penetrometer is shown as 0.1 mm.
Preferably, the No. 1 rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 8-10 ten thousand, and the No. 2 rubber modifier is one or a mixture of more of a styrene isoprene block copolymer, a styrene butadiene block copolymer, terpene resin, carbon 5 petroleum resin and carbon 9 petroleum resin.
Preferably, the adhesion promoter consists of the following two components, A is a dehydrating agent consisting of vinyltrimethoxysilane or vinyltriethoxysilane, B is: one or more of a silane coupling agent amino propyl triethoxy silane coupling agent containing mono/double amino functional groups or epoxy functional groups, gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane and N- (beta-aminoethyl) -gamma-aminopropyl triethoxy silane are mixed, and the ratio of A to B is 1: 1.
Preferably, the antioxidant comprises one or more of BASF tinvin 770, BASF tinvin B75, BASF 1010, BASF 168 and BHT264, the ultraviolet absorbent comprises one or more of BASF tinvin 326, BASF C81 and UV531, the filler is one or more of 400-mesh talcum powder and 600-mesh precipitated barium sulfate, and the dispersant is BYK 108.
Preferably, the composite thixotropic regulator is prepared by heating, mixing and activating 15-25 parts by mass of hydrophobic modified polyamide wax, 5-10 parts by mass of bentonite 1, 15-20 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil, and the preparation process comprises the following steps:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
Preferably, the bentonite 1 is rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, the bentonite 2 is sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-95 ℃ and comprises one or a mixture of CrayvallacSL and Crayvallac SLX.
Preferably, the non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
The invention relates to a low-temperature-spraying non-cured rubber asphalt waterproof coating, which is characterized in that the basic viscosity of a non-cured rubber asphalt waterproof coating system is greatly reduced by innovatively adjusting a conventional formula system, meanwhile, the problem of reduced adhesiveness caused by reduced viscosity is improved by respectively adjusting an adhesion promoter and the formula, and the problem of reduced high temperature resistance caused by reduced basic viscosity is improved by adding a composite thixotropic agent, so that the construction temperature of the prepared non-cured rubber asphalt waterproof coating can be reduced to below 80 ℃, the construction effect and the construction influence on the environment of the product are greatly improved, and the low-temperature-spraying non-cured rubber asphalt waterproof coating has an important application prospect compared with the common products on the market, the construction temperature of which needs to be above 150 ℃.
The specific implementation mode is as follows:
example 1
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to the ratio of 3:1, the penetration degree is 88, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene isoprene block copolymer, the adhesion promoter is prepared by mixing a vinyl trimethoxy silane coupling agent and an aminopropyl triethoxy silane coupling agent according to the ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 20 parts by mass of hydrophobic modified polyamide wax, 5 parts by mass of bentonite 1, 15 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-95 ℃ and the trade mark of CrayvallacSL.
The composite thixotropic regulator of the embodiment is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Example 2
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to a ratio of 4:1, the penetration degree is 83, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene isoprene block copolymer, the adhesion promoter is prepared by mixing a vinyl trimethoxy silane coupling agent and an aminopropyl triethoxy silane coupling agent according to a ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 15 parts by mass of hydrophobic modified polyamide wax, 6 parts by mass of bentonite 1, 20 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-70 ℃ and the trade mark of CrayvallacSLX.
The composite thixotropic regulator of the embodiment is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Example 3
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to the ratio of 3:1, the penetration degree is 85, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene-butadiene block copolymer, the adhesion promoter is prepared by mixing a vinyl triethoxysilane coupling agent and an aminopropyltriethoxysilane coupling agent according to the ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 20 parts by mass of hydrophobic modified polyamide wax, 8 parts by mass of bentonite 1, 22 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-2.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-70 ℃ and the mark of CrayvallacSL.
The composite thixotropic regulator of the embodiment is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Example 4
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to a ratio of 4:1, the penetration degree is 83, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene-butadiene block copolymer, the adhesion promoter is prepared by mixing a vinyl triethoxysilane coupling agent and an aminopropyltriethoxysilane coupling agent according to a ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 25 parts by mass of hydrophobic modified polyamide wax, 8 parts by mass of bentonite 1, 15 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-2.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-70 ℃ and the mark of CrayvallacSL.
The composite thixotropic regulator of the embodiment is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Comparative example 1
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to the ratio of 3:1, the penetration degree is 88, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene isoprene block copolymer, the adhesion promoter is prepared by mixing a vinyl trimethoxy silane coupling agent and an aminopropyl triethoxy silane coupling agent according to the ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 20 parts by mass of hydrophobic modified polyamide wax, 5 parts by mass of bentonite 1, 15 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-95 ℃ and the trade mark of CrayvallacSL.
The composite thixotropic regulator of the comparative example is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Comparative example 2
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to the ratio of 3:1, the penetration degree is 88, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene isoprene block copolymer, the adhesion promoter is prepared by mixing a vinyl trimethoxy silane coupling agent and an aminopropyl triethoxy silane coupling agent according to the ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 20 parts by mass of hydrophobic modified polyamide wax, 5 parts by mass of bentonite 1, 15 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-95 ℃ and the trade mark of CrayvallacSL.
The composite thixotropic regulator of the comparative example is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Comparative example 3
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
wherein the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to the ratio of 3:1, the penetration degree is 88, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene isoprene block copolymer, and the adhesion promoter is prepared by mixing a vinyl trimethoxy silane coupling agent and an aminopropyl triethoxy silane coupling agent according to the ratio of 1: 1.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Comparative example 4
A non-curing rubber asphalt waterproof coating mainly comprises the following components in percentage by weight:
the petroleum asphalt is prepared by mixing 70# asphalt and 90# asphalt according to the ratio of 3:1, the penetration degree is 88, the 1 # rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 80000-100000, the 2 # rubber modifier is a styrene isoprene block copolymer, the adhesion promoter is prepared by mixing a vinyl trimethoxy silane coupling agent and an aminopropyl triethoxy silane coupling agent according to the ratio of 1:1, and the composite thixotropic regulator is prepared by heating, mixing and activating 20 parts by mass of hydrophobic modified polyamide wax, 5 parts by mass of bentonite 1, 15 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil. The bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0nm, and the hydrophobic polyamide wax is a polyamide wax which is subjected to hydrophobic modification by siloxane and has the activation temperature of 60-95 ℃ and the trade mark of CrayvallacSL.
The composite thixotropic regulator of the comparative example is prepared by the following process:
step 1: heating hydrogenated castor oil to 60 ℃, adding rodlike bentonite and flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved.
Step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
The non-cured rubber asphalt waterproof coating is prepared by the following process:
step 1: heating the petroleum asphalt to 150-.
Step 2: and adding the No. 1 rubber modifier into the mixture 3 under the condition of keeping the temperature unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the No. 1 rubber modifier solvent is used for more than 40min to obtain a mixture 4.
And step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5.
And 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
Indexes and performance detection are carried out on the embodiment and the comparative example, and the results are as follows:
it can be seen from the comparison between the comparative example and the example that the formulation can be constructed at a lower temperature due to the lower viscosity setting of the basic formulation, but after the content of the rubber modifier in the formulation is reduced (comparative examples 1 and 2), the high and low temperature performances of the formulation are greatly different, the cohesive strength is insufficient, the adhesive interface is damaged, the heat resistance and the adhesive property of a damp base surface of the formulation without mixing the thixotropic conditioning agent are obviously reduced, the use requirements cannot be met, and the adhesive effect of the formulation for reducing the adhesive force promoter is obviously different from that of the conventional formulation.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature is characterized by comprising the following components in parts by weight: the raw material formula comprises 200 parts by mass of petroleum asphalt 160-200 parts by mass, 5-10 parts by mass of rubber modifier No. 1, 8-20 parts by mass of rubber modifier No. 2, 4-5 parts by mass of adhesion promoter, 1-2 parts by mass of antioxidant, 1-2 parts by mass of ultraviolet absorbent, 20-40 parts by mass of filler, 2-4 parts by mass of dispersant and 10-20 parts by mass of composite thixotropic regulator;
the No. 1 rubber modifier is a linear styrene-butadiene-styrene block copolymer with the molecular weight of 8-10 ten thousand, and the No. 2 rubber modifier is one or a mixture of more of a styrene isoprene block copolymer, a styrene butadiene block copolymer, terpene resin, carbon 5 petroleum resin and carbon 9 petroleum resin;
the composite thixotropic regulator is prepared by heating, mixing and activating 15-25 parts by mass of hydrophobic modified polyamide wax, 5-10 parts by mass of bentonite 1, 15-20 parts by mass of bentonite 2 and 100 parts by mass of hydrogenated castor oil, wherein the bentonite 1 is a rod-shaped bentonite with the length of 300-500nm and the width of 1.0-3.0nm, and the bentonite 2 is a sheet-shaped bentonite with the width of 200-400nm and the thickness of 1.0-2.0 nm;
the preparation process of the composite thixotropic regulator comprises the following steps:
step 1: heating hydrogenated castor oil to 60 ℃, adding the bentonite with a rod-shaped structure and the flaky bentonite, mixing and stirring, heating to 80-90 ℃, and obtaining a mixture 1 when the bentonite is completely dissolved;
step 2: adding the hydrophobic modified polyamide wax into the mixture 1, stopping heating to naturally cool the mixture, and stirring at a high speed for more than 30 minutes to uniformly disperse the polyamide sodium to obtain a transparent and uniform jelly-like mixture 2, namely the composite thixotropic regulator.
2. The non-curable rubber asphalt waterproof coating material capable of being sprayed at a low temperature according to claim 1, wherein the petroleum asphalt is a mixture of naphthenic petroleum asphalt with the number of 70# and naphthenic petroleum asphalt with the number of 90#, the ratio is 2:1 to 4:1, and the penetration detection value after mixing is 80-110; the penetrometer is shown as 0.1 mm.
3. The non-curing rubber asphalt waterproof coating capable of being sprayed at low temperature according to claim 1, wherein the adhesion promoter comprises two groups of components, A is a dehydrating agent consisting of vinyl trimethoxy silane or vinyl triethoxy silane, and B is: the silane coupling agent containing mono/diamino functional group or epoxy functional group is prepared by mixing one or more of aminopropyltriethoxysilane coupling agent, gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane and N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, wherein the ratio of A to B is 1: 1.
4. The non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature according to claim 1, wherein the antioxidant comprises one or more of BASF tinvin 770, BASF tinvin B75, BASF 1010, BASF 168 and BHT264, the ultraviolet absorber comprises one or more of BASF tinvin 326, BASF C81 and UV531, the filler is one or more of 400-mesh talcum powder and 600-mesh precipitated barium sulfate, and the dispersant is BYK 108.
5. The non-cured rubberized asphalt waterproof paint capable of being sprayed at a low temperature according to any one of claims 1 to 4, wherein the non-cured rubberized asphalt waterproof paint is prepared by the following process:
step 1: heating the petroleum asphalt to 150-;
step 2: adding the rubber modifier No. 1 into the mixture 3 under the condition that the temperature is kept unchanged, keeping the stirring speed unchanged, and heating to 170-175 ℃ to ensure that the rubber modifier No. 1 solvent is dissolved for more than 40min to obtain a mixture 4;
and step 3: adding a dispersing agent and a filler into the mixture 4, keeping the temperature and the stirring speed, mixing and stirring for more than 30min to ensure that the filler is uniformly mixed, and cooling to 60-70 ℃ to obtain a mixture 5;
and 4, step 4: and adding an ultraviolet absorber, an antioxidant, an adhesive force promoter and a composite thixotropic regulator into the mixture 5, keeping the temperature at 60-70 ℃, and uniformly mixing and stirring to obtain the non-cured rubber asphalt waterproof coating capable of being sprayed at low temperature.
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| CN113136128B (en) * | 2021-03-16 | 2022-11-01 | 苏州中材非金属矿工业设计研究院有限公司 | Solvent-free elastic asphalt waterproof coating and preparation method thereof |
| CN113107102B (en) * | 2021-03-16 | 2023-01-24 | 苏州正硅防水科技有限公司 | Building waterproof structure |
| CN113416490B (en) * | 2021-05-29 | 2023-07-11 | 山东哈力克新材料科技有限公司 | Asphalt pavement maintenance coating material and preparation method thereof |
| CN114479666A (en) * | 2022-02-28 | 2022-05-13 | 湖北三棵树新材料科技有限公司 | Solvent-free single-component normal-temperature non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN115746708A (en) * | 2022-12-10 | 2023-03-07 | 河北泽润工程橡塑有限公司 | Bio-based low-temperature-resistant spraying quick-setting rubber asphalt waterproof material and preparation method thereof |
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Effective date of registration: 20230515 Address after: 710200 Jingwei 10th Road, Jinghe Industrial Park, Gaoling District, Xi'an City, Shaanxi Province Patentee after: Yuzhongqing Waterproof Technology Group Co.,Ltd. Patentee after: Fuping Yuzhongqing Waterproof Technology Co.,Ltd. Address before: 710200 Jingwei 10th Road, Jinghe Industrial Park, Gaoling District, Xi'an City, Shaanxi Province Patentee before: Yuzhongqing Waterproof Technology Group Co.,Ltd. |