CN109370463B - Self-adhesive asphalt cement, preparation method thereof and crack sticker capable of being adhered to damp base surface and comprising self-adhesive asphalt cement - Google Patents
Self-adhesive asphalt cement, preparation method thereof and crack sticker capable of being adhered to damp base surface and comprising self-adhesive asphalt cement Download PDFInfo
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- CN109370463B CN109370463B CN201811223853.6A CN201811223853A CN109370463B CN 109370463 B CN109370463 B CN 109370463B CN 201811223853 A CN201811223853 A CN 201811223853A CN 109370463 B CN109370463 B CN 109370463B
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C08L2205/00—Polymer mixtures characterised by other features
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
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- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
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Abstract
The invention provides a self-adhesive asphalt cement, a preparation method thereof and a crack sticker which comprises the self-adhesive asphalt cement and can be bonded with a damp base surface, wherein the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 30-45 parts of asphalt, 5-10 parts of naphthenic oil, 10-20 parts of liquid rubber, 1-10 parts of an organosilicon coupling agent, 1-10 parts of an SBS modifier, 1-10 parts of styrene butadiene rubber, 1-5 parts of a reinforcing agent, 0.1-0.6 part of high-strength anti-cracking organic fiber, 15-30 parts of a filler, 0.5-3 parts of tackifying weather-resistant resin, 0.5-2 parts of petroleum resin and 0.05-0.3 part of an anti-aging agent; the reinforcing agent is maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer. The crack sticker capable of being bonded with a damp base surface comprises a polymer strong cross film or polyester-cotton glass fiber composite cloth, wherein two surfaces of the polymer strong cross film or the polyester-cotton glass fiber composite cloth are coated with self-adhesive asphalt cement, the upper surface of the polymer strong cross film or the polyester-cotton glass fiber composite cloth is coated with polypropylene non-woven fabrics or glass fiber cloth, and the lower surface of the polymer strong cross film or the polyester-cotton glass fiber composite cloth is coated with an isolating film.
Description
Technical Field
The invention relates to the technical field of highway maintenance, in particular to a self-adhesive asphalt cement, a preparation method thereof and a crack sticker which comprises the self-adhesive asphalt cement and can be bonded with a damp base surface.
Background
By the end of 2017, the total road mileage of China reaches 477 kilometers, wherein the total road mileage of a highway reaches 13.6 kilometers, and by 2 months in 2018, the total road mileage of China in rural areas reaches 396 kilometers, roads need to be maintained, and the main problem bothering the road maintenance in China at present is road cracks. Once a pavement crack is formed, the pavement can be continuously damaged along the crack until the traffic safety or the service life of the road is influenced, and casualties or material waste is caused. At present, crack-resistant stickers or crack belts on the market all require a base surface to be dry and dustless, and cannot be constructed in rainy weather, so that cracks cannot be repaired in time; meanwhile, the existing anti-crack plaster or crack belt cannot withstand long-term water scouring or water permeation after construction, so that the anti-crack plaster or crack belt cannot be peeled off, and the purpose of repairing cracks cannot be achieved.
Disclosure of Invention
In order to solve the problems, the invention provides a self-adhesive asphalt cement, a preparation method thereof and a crack sticker which comprises the self-adhesive asphalt cement and can be bonded with a damp base surface, can be constructed on the damp base surface, has high bonding strength with the damp base surface, and is resistant to water washing and water stripping.
The object of the invention is achieved in the following way: the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 30-45 parts of asphalt, 5-10 parts of naphthenic oil, 10-20 parts of liquid rubber, 1-10 parts of an organosilicon coupling agent, 1-10 parts of an SBS modifier, 1-10 parts of styrene butadiene rubber, 1-5 parts of a reinforcing agent, 0.1-0.6 part of high-strength anti-cracking organic fiber, 15-30 parts of a filler, 0.5-3 parts of tackifying weather-resistant resin, 0.5-2 parts of petroleum resin and 0.05-0.3 part of an anti-aging agent; the reinforcing agent is maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer.
42 parts of asphalt, 8 parts of naphthenic oil, 17 parts of liquid rubber, 3 parts of an organic silicon coupling agent, 4 parts of an SBS modifier, 5 parts of styrene butadiene rubber, 2 parts of a reinforcing agent, 0.3 part of high-strength anti-cracking organic fiber, 23 parts of a filler, 2 parts of tackifying and weather-resistant resin, 0.5 part of petroleum resin and 0.2 part of an anti-aging agent.
The asphalt is one of 70# heavy-duty asphalt, 90# heavy-duty asphalt and 100# petroleum asphalt; the liquid rubber is liquid polyisoprene rubber with the molecular weight of 1500-; the grafting rate of the maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer is more than 5 percent; the SBS modifier is at least one of SBS YH-791, SBS YH-792, SBS T161B and LG 501S; the styrene-butadiene rubber is powder styrene-butadiene rubber PSBR or KLSBR granular styrene-butadiene rubber; the organosilicon coupling agent is an aminosilane; the tackifying and weather-resistant resin is terpene resin or rosin resin; the petroleum resin is C9 petroleum resin or C5 petroleum resin; the high-strength anti-crack organic fiber is polyester fiber or lignin fiber; the anti-aging agent is anti-aging agent 264; the filler is talcum powder, light calcium carbonate, heavy calcium carbonate or sericite powder.
The preparation method of the self-adhesive asphalt cement is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) weighing the raw materials in parts by weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 50-70 r/min for 0.5-1.5 hours, and ensuring uniform mixing;
(3) then adding the reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 1.8-2.2 hr to ensure full swelling, development and uniform dispersion;
(5) then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.3-1.7 hours to ensure full swelling and uniform dispersion;
(6) then adding an organic silicon coupling agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 1-3 times by using a colloid mill; the modifier is effectively dispersed, homogenized and crushed under the physical actions of high-speed rotation, strong shearing force, friction force, high-frequency vibration, high-speed vortex and the like of the colloid mill, so that a stable mixed and dissolved system is formed with the asphalt, and the modification purpose is achieved;
(9) then adding high-strength anti-crack organic fiber and filler, keeping the temperature at 170 +/-5 ℃, and stirring for 1.8-2.2 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, stirring for 0.8-1.2 hours, and ensuring uniform dispersion to obtain the prepared self-adhesive asphalt cement.
In the step (2), the stirring speed is 60 revolutions per minute, the stirring time is 1 hour, and the uniform mixing is ensured; stirring for 1 hour in the step (3); stirring for 2 hours in the step (4); stirring for 1.5 hours in the step (5); stirring for 1 hour in the step (6); stirring for 1 hour in the step (7); stirring for 2 hours in the step (9); stirring for 1 hour in step (10).
The utility model provides a crack subsides that can bond with moist base face, includes the powerful alternately membrane of polymer or the fine compound cloth of polyester-cotton glass, the two sides coating of the powerful alternately membrane of polymer or the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the powerful alternately membrane of polymer or the fine compound cloth coating of polyester-cotton glass have covered polypropylene fiber non-woven fabrics or glass fiber cloth on the upper surface of the glued material of self-adhesion pitch, and the barrier film is covered to the lower surface.
The invention has the beneficial effects that: the crack subsides that this application provided can be under the construction of moist base surface, and is high with base surface adhesive strength, and water-fast erodees, water stripping. The crack plaster overcomes the defects that the crack plaster on the market can not be constructed on a wet base surface and can not bear long-term water scouring and water penetration. The use of the liquid polyisoprene rubber can increase the initial viscosity of the product and improve the fitting property of the product. The maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer as a reinforcing agent can effectively improve the high-temperature resistance of the crack paste and simultaneously does not reduce the initial viscosity of the crack paste.
Detailed Description
Example 1:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 30-45 parts of asphalt, 5-10 parts of naphthenic oil, 10-20 parts of liquid rubber, 1-10 parts of an organosilicon coupling agent, 1-10 parts of an SBS modifier, 1-10 parts of styrene butadiene rubber, 1-5 parts of a reinforcing agent, 0.1-0.6 part of high-strength anti-cracking organic fiber, 15-30 parts of a filler, 0.5-3 parts of tackifying weather-resistant resin, 0.5-2 parts of petroleum resin and 0.05-0.3 part of an anti-aging agent; the reinforcing agent is maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer.
42 parts of asphalt, 8 parts of naphthenic oil, 17 parts of liquid rubber, 3 parts of an organic silicon coupling agent, 4 parts of an SBS modifier, 5 parts of styrene butadiene rubber, 2 parts of a reinforcing agent, 0.3 part of high-strength anti-cracking organic fiber, 23 parts of a filler, 2 parts of tackifying and weather-resistant resin, 0.5 part of petroleum resin and 0.2 part of an anti-aging agent.
The asphalt is one of 70# heavy-duty asphalt, 90# heavy-duty asphalt and 100# petroleum asphalt; the liquid rubber is liquid polyisoprene rubber with the molecular weight of 1500-; the grafting rate of the maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer is more than 5 percent; the SBS modifier is at least one of SBS YH-791, SBS YH-792, SBS T161B and LG 501S; the styrene-butadiene rubber is powder styrene-butadiene rubber PSBR or KLSBR granular styrene-butadiene rubber; the organosilicon coupling agent is an aminosilane; the tackifying and weather-resistant resin is terpene resin or rosin resin; the petroleum resin is C9 petroleum resin or C5 petroleum resin; the high-strength anti-crack organic fiber is polyester fiber or lignin fiber; the anti-aging agent is anti-aging agent 264; the filler is talcum powder, light calcium carbonate, heavy calcium carbonate or sericite powder.
The preparation method of the self-adhesive asphalt cement is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) weighing the raw materials in parts by weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 50-70 r/min for 0.5-1.5 hours, and ensuring uniform mixing;
(3) then adding the reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 1.8-2.2 hr to ensure full swelling, development and uniform dispersion;
(5) then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.3-1.7 hours to ensure full swelling and uniform dispersion;
(6) then adding an organic silicon coupling agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 1-3 times by using a colloid mill; the modifier is effectively dispersed, homogenized and crushed under the physical actions of high-speed rotation, strong shearing force, friction force, high-frequency vibration, high-speed vortex and the like of the colloid mill, so that a stable mixed and dissolved system is formed with the asphalt, and the modification purpose is achieved;
(9) then adding high-strength anti-crack organic fiber and filler, keeping the temperature at 170 +/-5 ℃, and stirring for 1.8-2.2 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, stirring for 0.8-1.2 hours, and ensuring uniform dispersion to obtain the prepared self-adhesive asphalt cement.
The utility model provides a crack subsides that can bond with moist base face, includes the powerful alternately membrane of polymer or the fine compound cloth of polyester-cotton glass, the two sides coating of the powerful alternately membrane of polymer or the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the powerful alternately membrane of polymer or the fine compound cloth coating of polyester-cotton glass have covered polypropylene fiber non-woven fabrics or glass fiber cloth on the upper surface of the glued material of self-adhesion pitch, and the barrier film is covered to the lower surface.
70# heavy traffic asphalt, 90# heavy traffic asphalt or 100# petroleum asphalt, which is paste at normal temperature and liquid when heated;
naphthenic oil, a rubber softening oil, is liquid at room temperature;
the liquid polyisoprene rubber is viscous paste at normal temperature and is liquid when being heated;
SBS modifier, namely styrene-butadiene-styrene block copolymer, rubber granule, it is multi-purpose to modify asphalt, the model mainly includes SBS YH-791, SBS YH-792, SBS T161B, LG 501S, etc.;
maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, i.e. maleic anhydride grafted ABS, plastic granules;
the polyester fiber is a synthetic filament fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, has strong adsorbability with asphalt, is not twisted, can adsorb excessive free asphalt, and strengthens a mixture in a three-dimensional manner so as to increase the viscosity and cohesive force of the asphalt;
the terpene resin is yellow transparent, thermoplastic solid, non-toxic, odorless, radiation-resistant, has good compatibility with various synthetic substances, is a good tackifier, and has excellent performances of strong cohesive force, good ageing resistance, high cohesive force, heat resistance, acid resistance, alkali resistance, non-toxicity and the like;
petroleum resin, light yellow or light brown flaky or granular solid, has good thickening property, stability and water resistance, and has good compatibility with natural rubber and synthetic rubber;
the anti-aging agent 264 is yellowish powder in appearance, and the pure product is white crystal which can inhibit or delay the oxidative degradation of plastics or rubber so as to prolong the service life;
a high-molecular strong cross film, a U.S. original-package waterproof and steam-proof HDPE high-density polyethylene strong film imported from Viron Valeron, is a world-known brand of printing industry, packaging industry and building industry. It is a high-density polyethylene (HDPE) strong film which is made by multilayer staggered lamination through a production mode of a proprietary patent. It is environment-friendly and recyclable; soft, smooth, tough and durable; the coating has the advantages of tear resistance, point tension resistance, puncture resistance, wear resistance, water and steam resistance, rust resistance, ultraviolet resistance and long outdoor service life; chemical corrosion resistance and strong dimensional stability; the sewing, bonding, bending and punching can be carried out, and the perforated part does not need to be reinforced;
the polyester-cotton-glass fiber composite cloth is a novel alkali-resistant product which is prepared by using medium-alkali or alkali-free glass fiber yarns as raw materials, weaving glass fiber gridding cloth, covering the glass fiber gridding cloth with a polyester-cotton material as a base material, coating acrylic acid copolymerization liquid to increase the surface adhesiveness of fibers, and drying. The product has the characteristics of stable structure, high strength, good alkali resistance, corrosion resistance, crack resistance and the like, and has the best reinforcing effect;
a polypropylene non-woven fabric, a commonly used crack adhesive back lining cloth, is one of the cloth which is made by using polypropylene as a raw material, drawing and polymerizing the polypropylene into a net at high temperature and then bonding the net by a hot rolling method. The process flow is simple, the yield is high, and the product is nontoxic and harmless to human bodies, so the product is widely applied to the fields of sanitary materials and the like. In the non-woven fabric manufacturing method, the spun-bonding method has obvious advantages in the aspects of manufacturing technology, product performance, production efficiency and the like.
Glass fiber cloth, glass fiber is an excellent performance inorganic non-metallic material, and the variety is various. Its advantages are high insulating performance, high heat resistance, high anticorrosion nature and high mechanical strength. Glass fibers are commonly used as reinforcing materials in composite materials, electrical and thermal insulation materials, circuit substrates, and other various fields of the national economy. The glass fiber cloth is made by drawing glass into superfine glass fiber, and the glass fiber has good flexibility; the glass fiber cloth can be woven by spinning glass yarns and then passing through a loom.
The above raw materials are commercially available.
The raw materials and amounts of the self-adhesive asphalt cement of examples 2-6 are shown in table 1 below, wherein the reinforcing agent is maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, and the amounts of the raw materials are in the following units: and (kg).
The preparation method of the self-adhesive asphalt cement of the embodiment 2 to the embodiment 6 comprises the following steps of (1) weighing the raw materials according to the weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 60 revolutions per minute for 1 hour, and ensuring uniform mixing;
(3) then adding a reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 1 hour to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 2 hr to ensure full swelling, development and uniform dispersion; (ii) a
(5) Then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.5 hours to ensure full swelling and uniform dispersion;
(6) then adding aminosilane, keeping the temperature at 190 +/-5 ℃, and stirring for 1 hour to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 1 hour to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 2 times by using a colloid mill;
(9) then adding high-strength anti-crack organic fiber and talcum powder, keeping the temperature at 170 +/-5 ℃, and stirring for 2 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, stirring for 1 hour, and ensuring uniform dispersion to obtain the prepared self-adhesive asphalt cement.
And then respectively coating the self-adhesive asphalt cement prepared in the embodiments 2 to 6 on two sides of the polyester-cotton glass fiber composite cloth, wherein the coating thicknesses are the same, the polypropylene non-woven fabric is coated on the upper surface coating, and the isolation film is coated on the lower surface coating to prepare the crack sticker capable of being bonded with the damp base surface, so that a No. 1 crack sticker, a No. 2 crack sticker, a No. 3 crack sticker, a No. 4 crack sticker and a No. 5 crack sticker are respectively obtained.
The performances of the No. 1 crack sticker, the No. 2 crack sticker, the No. 3 crack sticker, the No. 4 crack sticker and the No. 5 crack sticker are experimentally verified, wherein an asphalt concrete test block and a cement concrete test block are soaked in water for 24 hours at the laboratory temperature of 23 +/-2 ℃, and after surface floating water is sucked dry by using filter paper, an asphalt concrete moist base surface and a cement concrete moist base surface are simulated respectively. Whether the No. 1 crack sticker, the No. 2 crack sticker, the No. 3 crack sticker, the No. 4 crack sticker and the No. 5 crack sticker can be adhered to a wet base surface or not is tested, the peeling strengths of the No. 1 crack sticker, the No. 2 crack sticker, the No. 3 crack sticker, the No. 4 crack sticker and the No. 5 crack sticker to a cement concrete base surface and an asphalt concrete base surface are respectively tested, and the comparison performance of the crack sticker with a common crack sticker, which is produced by Shandongtong new material Limited, is shown in the following table 2.
The above embodiment lists show that the crack plaster capable of being bonded with the wet base surface can be bonded with the wet base surface, has higher peel strength and better performance than the common crack plaster.
The raw materials and the dosage of the self-adhesive asphalt binder of the embodiment 7 to the embodiment 17 are 37kg of 70# heavy cross-linked asphalt, 8kg of naphthenic oil, 3kg of amino silane, 5kg of modifier SBS YH-7924 kg of powder styrene-butadiene rubber PSBR, 2kg of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.3kg of polyester fiber, 23kg of talcum powder, 1kg of terpene resin, 1.5kg of C5 petroleum resin and 2640.08 kg of anti-aging agent, the dosage of the liquid polyisoprene rubber in the embodiment 7 to the embodiment 17 is different, and the dosage of the liquid polyisoprene rubber in the embodiment 7 to the embodiment 17 is respectively 0kg, 6kg, 8kg, 10kg, 12kg, 14kg, 16kg, 18kg, 20kg, 22kg and 24 kg; the self-adhesive asphalt cements of the embodiments 7 to 17 are respectively prepared according to the preparation method of the mixed paint of the embodiment 2, then the self-adhesive asphalt cements prepared in the embodiments 7 to 17 are respectively coated on two sides of the polyester-cotton glass fiber composite cloth, the coating thickness is the same, the polypropylene fiber non-woven fabric is coated on the upper surface coating, the isolation film is coated on the lower surface coating, the crack plaster which can be bonded with the wet base surface is prepared, and the crack plaster samples of the invention which can be respectively prepared into the crack plaster of the numbers 10#, 11#, 12#, 13#, 14#, 15#, 16#, 17#, 18#, 19# and 20# are respectively obtained.
The initial tack of the crack plaster samples 10#, 11#, 12#, 13#, 14#, 15#, 16#, 17#, 18#, 19#, and 20# was tested as follows.
At the laboratory temperature, samples were cut according to longitudinal =1m × 0.2m, laid horizontally on a test bed with a 45 ° slope, with one end of the short side in flush abutment with the bottom of the slope, after the barrier film was uncovered, a smooth-surfaced steel roll weighing 2kg and having a diameter of 50mm was rolled down naturally at a height of 15cm from the slope, and the distance of the roll on the crack plaster was recorded. The smaller the distance, the stronger the initial tack. The data are reported in table 3 below:
therefore, the initial viscosity of the crack plaster can be improved by adding the liquid polyisoprene rubber, the initial viscosity is obviously increased within the range of 8kg-20kg along with the increase of the using amount of the liquid polyisoprene rubber, and the initial viscosity is not greatly increased and changed above 20 kg.
The improvement effect of the liquid polyisoprene rubber on the crack application conformability is verified by testing the penetration and the cone penetration of the self-adhesive asphalt cement on the sample No. 10-20, and the larger the penetration and the cone penetration, the better the crack application conformability is shown.
The penetration of the self-adhesive asphalt cement on the crack plaster samples of No. 10#, No. 11#, No. 12#, No. 13#, No. 14#, No. 15#, No. 16#, No. 17#, No. 18#, No. 19# and No. 20 are tested according to the contents specified in GB/T4509-.
The penetration of the self-adhesive asphalt cement on the crack sealing samples 10#, 11#, 12#, 13#, 14#, 15#, 16#, 17#, 18#, 19#, and 20# were tested according to the test procedure specified in JT/T969-.
As can be seen from the penetration test results in Table 4, the penetration of the product can be significantly improved by the addition of the liquid polyisoprene rubber, i.e., the softness of the product becomes better as the amount of the liquid polyisoprene rubber added increases. As can be seen from the cone penetration test results of table 5, as the amount of liquid polyisoprene rubber added increases, the cone penetration of the sample increases. Through the test results of the penetration degree and the cone penetration degree, the liquid polyisoprene rubber can be obtained, the product compliance can be obviously improved, and the compliance becomes better and better along with the increase of the addition amount. In addition, the addition of the liquid polyisoprene rubber can effectively improve the initial viscosity and the conformability of the crack patch within the range of 10kg-20 kg.
We now show by comparative tests the effect of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymers as reinforcing agents in the self-adhesive asphalt cement formulations of the present application.
The raw materials and amounts of the self-adhesive asphalt cement of examples 18 to 28 were as follows, 39kg of No. 90 heavy-cross asphalt, 9kg of naphthenic oil, 15kg of liquid polyisoprene rubber, 3kg of aminosilane, 3kg of modifier SBS T161B 4kg, 4kg of powder styrene butadiene rubber PSBR, 0.3kg of polyester fiber, 20kg of talc, 0.5kg of terpene resin, 1.5kg of C5 petroleum resin and 0.1kg of anti-aging agent 264, with the difference between examples 18 to 28 being the amount of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer. Example 18-the maleic anhydride-grafted acrylonitrile-butadiene-styrene copolymer of example 28 was used in amounts of 0kg, 0.5kg, 1kg, 1.5kg, 2kg, 2.5kg, 3kg, 3.5kg, 4kg, 4.5kg, and 5kg, respectively; then, the self-adhesive asphalt cements prepared in the embodiments 18 to 28 are respectively coated on two surfaces of the high molecular strong crossing film, and the coating thickness is the same, the polypropylene non-woven fabric is coated on the upper surface coating layer, and the isolation film is coated on the lower surface coating layer to prepare the crack plaster which can be bonded with the wet base surface, so that crack plaster samples of 21#, 22#, 23#, 24#, 25#, 26#, 27#, 28#, 29#, 30# and 31# are respectively obtained. The initial tack of the crack plaster samples 21#, 22#, 23#, 24#, 25#, 26#, 27#, 28#, 29#, 30#, and 31# was tested and the data is shown in table 6 below.
Through the initial adhesion test of each sample, the initial adhesion of the crack paste is affected by adding the maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, but when the adding amount is 4kg or less, the initial adhesion of the crack paste is affected little, and when the adding amount exceeds 4kg, the initial adhesion of the crack paste is obviously affected.
The cracks with self-adhesive asphalt cement samples applied thereto were tested according to the method specified in GB/T4507-.
By testing the softening point of the self-adhesive asphalt cement on each sample, we can see that: the addition of the maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer can obviously improve the softening point of the crack paste, and the softening point is higher and higher along with the increase of the addition amount, namely the high temperature resistance is better and better.
Within the dosage of 1kg-4kg, the maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer is used as a reinforcing agent, so that the high temperature resistance of the crack paste can be effectively improved, and the initial viscosity of the crack paste is not reduced; when the weight is less than 1kg, the reinforcing effect on the crack plaster is not obvious; above 4kg, the initial tack of the crack sealer is significantly affected.
The mechanism of action of aminosilane in the crack paste is as follows: the amino silane in the crack paste has two groups, namely amino and three ethoxy groups, wherein the amino group has two active hydrogens which are oleophylic groups and can be tightly combined with asphalt to form a chemical bond; the ethoxy is a hydrophilic group, can react with moisture in the surface of the base layer, cracks and capillary pores, and is hydrolyzed into silanol, the silanol is extremely unstable, and can generate hydrophobic siloxane through dehydration condensation reaction, so that the crack paste and the base surface are tightly bonded and are not peeled by water.
The specific raw materials and amounts of the self-adhesive asphalt cement can also be as follows.
Example 29:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 30 parts of 70# heavy traffic asphalt, 5 parts of naphthenic oil, 10 parts of liquid polyisoprene rubber and 5000-phase molecular weight; 1 part of aminosilane, 1 part of modifier SBS YH-7911 part, 1 part of powder styrene butadiene rubber PSBR, 1 part of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.1 part of polyester fiber, 15 parts of talcum powder, 0.5 part of terpene resin, 0.5 part of C9 petroleum resin and 2640.05 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) weighing the raw materials in parts by weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 50 revolutions per minute for 0.8 hour, and ensuring uniform mixing;
(3) then adding a reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8 hour to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 1.8 hr to ensure full swelling, development and uniform dispersion;
(5) then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.3 hours to ensure full swelling and uniform dispersion;
(6) then adding an organic silicon coupling agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8 hour to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 0.8 hour to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 1 time by using a colloid mill;
(9) then adding high-strength anti-crack organic fiber and talcum powder, keeping the temperature at 170 +/-5 ℃, and stirring for 1.8 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, and stirring for 0.8 hour to ensure uniform dispersion, thereby obtaining the prepared self-adhesive asphalt cement.
The utility model provides a can paste with crack of moist base face bonding, includes the fine compound cloth of polyester-cotton glass, the two sides coating of the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the fine compound cloth of polyester-cotton glass coats the upper surface of gluing the material of self-adhesion pitch and covers the polypropylene fibre non-woven fabrics, and the barrier film is covered to the lower surface.
Example 30:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 45 parts of 90# heavy-duty asphalt, 10 parts of naphthenic oil, 20 parts of liquid polyisoprene rubber, 10 parts of aminosilane, 10 parts of modifier SBS YH-79210 parts, 10 parts of KLSBR granular styrene-butadiene rubber, 5 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.6 part of polyester fiber, 30 parts of talcum powder, 3 parts of terpene resin, 2 parts of C5 petroleum resin and 2640.3 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) weighing the raw materials in parts by weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 70 revolutions per minute for 0.5 hour, and ensuring uniform mixing;
(3) then adding a reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 1.2 hours to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 2.2 hr to ensure full swelling, development and uniform dispersion;
(5) then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.7 hours to ensure full swelling and uniform dispersion;
(6) then adding an organic silicon coupling agent, keeping the temperature at 190 +/-5 ℃, and stirring for 1.2 hours to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 1.2 hours to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 2 times by using a colloid mill;
(9) then adding high-strength anti-crack organic fiber and talcum powder, keeping the temperature at 170 +/-5 ℃, and stirring for 2.2 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, and stirring for 1.2 hours to ensure uniform dispersion, thereby obtaining the prepared self-adhesive asphalt cement.
The utility model provides a can paste with crack of moist base face bonding, includes the fine compound cloth of polyester-cotton glass, the two sides coating of the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the fine compound cloth of polyester-cotton glass coats the upper surface of the glued material of self-adhesion pitch and covers glass fiber cloth, and the barrier film is covered to the lower surface.
Example 31:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 42 parts of No. 100 petroleum asphalt, 8 parts of naphthenic oil, 17 parts of liquid polyisoprene rubber, 3 parts of aminosilane, 4 parts of modifier SBS T161B 4, 5 parts of powdered styrene-butadiene rubber PSBR, 2 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.3 part of polyester fiber, 23 parts of talcum powder, 2 parts of terpene resin, 0.5 part of C9 petroleum resin and 2640.2 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
(1) weighing the raw materials in parts by weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 65 revolutions per minute for 1.5 hours, and ensuring uniform mixing;
(3) then adding a reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.9 hour to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 2.1 hr to ensure full swelling, development and uniform dispersion;
(5) then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.6 hours to ensure full swelling and uniform dispersion;
(6) then adding an organic silicon coupling agent, keeping the temperature at 190 +/-5 ℃, and stirring for 1 hour to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 1.1 hours to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 3 times by using a colloid mill;
(9) then adding high-strength anti-crack organic fiber and talcum powder, keeping the temperature at 170 +/-5 ℃, and stirring for 1.9 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, stirring for 1 hour, and ensuring uniform dispersion to obtain the prepared self-adhesive asphalt cement.
The utility model provides a can paste with crack of moist base surface bonding, includes the powerful crossing membrane of polymer, the two sides coating of the powerful crossing membrane of polymer have self-adhered asphalt cement material, then the powerful crossing membrane of polymer coats the upper surface of self-adhered asphalt cement material and covers polypropylene fiber non-woven fabrics, and the barrier film is covered to the lower surface.
Example 32:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 38 parts of 70# heavy-duty asphalt, 7 parts of naphthenic oil, 15 parts of liquid polyisoprene rubber, 5 parts of aminosilane, 6 parts of modifier LG 501S, 6 parts of KLSBR granular styrene-butadiene rubber, 3 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.4 part of lignin fiber, 22 parts of talcum powder, 1.7 parts of rosin resin, 1.3 parts of C5 petroleum resin and 2640.15 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is as described in example 1.
The crack plaster capable of being adhered to wet base surface includes powerful crossed polymer film with self-adhesive asphalt cement coated on its two sides, glass fiber cloth coated on the upper surface of the powerful crossed polymer film and isolating film coated on the lower surface.
Example 33:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 31 parts of asphalt, 9 parts of naphthenic oil, 11 parts of liquid polyisoprene rubber, 9 parts of aminosilane, 9 parts of modifier SBS YH-7911 parts, 1 part of modifier SBS YH-7921 parts, 9 parts of styrene butadiene rubber, 2 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.6 part of lignin fiber, 16 parts of talcum powder, 2 parts of terpene resin, 0.7 part of petroleum resin and 2640.25 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is as described in example 1.
The crack plaster capable of being adhered to wet base surface includes powerful crossed polymer film with self-adhesive asphalt cement coated on its two sides, glass fiber cloth coated on the upper surface of the powerful crossed polymer film and isolating film coated on the lower surface.
Example 34:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 43 parts of asphalt, 6 parts of naphthenic oil, 18 parts of liquid rubber, 2 parts of aminosilane, 3 parts of modifier SBS T161B 3, 6 parts of modifier LG 501S, 2 parts of styrene butadiene rubber, 4 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.2 part of polyester fiber, 29 parts of talcum powder, 0.8 part of rosin resin, 1.9 parts of petroleum resin and 2640.08 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is as described in example 1.
The utility model provides a can paste with crack of moist base face bonding, includes the fine compound cloth of polyester-cotton glass, the two sides coating of the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the fine compound cloth of polyester-cotton glass coats the upper surface of the glued material of self-adhesion pitch and covers glass fiber cloth, and the barrier film is covered to the lower surface.
Example 35:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 37 parts of asphalt, 10 parts of naphthenic oil, 11 parts of liquid rubber, 6 parts of aminosilane, 9 parts of SBS modifier, 3 parts of styrene butadiene rubber, 3 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.5 part of polyester fiber, 18 parts of talcum powder, 2.8 parts of terpene resin, 1.9 parts of petroleum resin and 2640.1 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is as described in example 1.
The utility model provides a can paste with crack of moist base face bonding, includes the fine compound cloth of polyester-cotton glass, the two sides coating of the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the fine compound cloth of polyester-cotton glass coats the upper surface of gluing the material of self-adhesion pitch and covers the polypropylene fibre non-woven fabrics, and the barrier film is covered to the lower surface.
Example 36:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 43 parts of asphalt, 7 parts of naphthenic oil, 12 parts of liquid rubber, 9 parts of aminosilane, 6 parts of SBS modifier, 2 parts of styrene butadiene rubber, 4 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.4 part of polyester fiber, 16 parts of talcum powder, 2.8 parts of terpene resin, 1.3 parts of petroleum resin and 2640.28 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is as described in example 1.
The utility model provides a can paste with crack of moist base surface bonding, includes the powerful crossing membrane of polymer, the two sides coating of the powerful crossing membrane of polymer have self-adhered asphalt cement material, then the powerful crossing membrane of polymer coats the upper surface of self-adhered asphalt cement material and covers polypropylene fiber non-woven fabrics, and the barrier film is covered to the lower surface.
Example 37:
the self-adhesive asphalt cement comprises the following raw materials in parts by weight: 33 parts of asphalt, 9 parts of naphthenic oil, 15 parts of liquid rubber, 2 parts of aminosilane, 10 parts of SBS modifier, 6 parts of styrene butadiene rubber, 2 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 0.5 part of lignin fiber, 22 parts of talcum powder, 2.6 parts of rosin resin, 0.6 part of petroleum resin and 2641.5 parts of anti-aging agent.
The preparation method of the self-adhesive asphalt cement is as described in example 1.
The utility model provides a can paste with crack of moist base face bonding, includes the fine compound cloth of polyester-cotton glass, the two sides coating of the fine compound cloth of polyester-cotton glass have the glued material of self-adhesion pitch, then the fine compound cloth of polyester-cotton glass coats the upper surface of gluing the material of self-adhesion pitch and covers the polypropylene fibre non-woven fabrics, and the barrier film is covered to the lower surface.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (6)
1. A self-adhesive asphalt cement is characterized in that: the composite material comprises the following raw materials in parts by weight: 30-45 parts of asphalt, 5-10 parts of naphthenic oil, 10-20 parts of liquid rubber, 1-10 parts of an organosilicon coupling agent, 1-10 parts of an SBS modifier, 1-10 parts of styrene butadiene rubber, 1-5 parts of a reinforcing agent, 0.1-0.6 part of high-strength anti-cracking organic fiber, 15-30 parts of a filler, 0.5-3 parts of tackifying weather-resistant resin, 0.5-2 parts of petroleum resin and 0.05-0.3 part of an anti-aging agent; the reinforcing agent is maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer; the liquid rubber is liquid polyisoprene rubber with the molecular weight of 1500-; the organosilicon coupling agent is an aminosilane.
2. The self-adhesive asphalt cement according to claim 1, wherein: 42 parts of asphalt, 8 parts of naphthenic oil, 17 parts of liquid rubber, 3 parts of an organic silicon coupling agent, 4 parts of an SBS modifier, 5 parts of styrene butadiene rubber, 2 parts of a reinforcing agent, 0.3 part of high-strength anti-cracking organic fiber, 23 parts of a filler, 2 parts of tackifying and weather-resistant resin, 0.5 part of petroleum resin and 0.2 part of an anti-aging agent.
3. The self-adhesive asphalt cement according to claim 1, wherein: the asphalt is one of 70# heavy-duty asphalt, 90# heavy-duty asphalt and 100# petroleum asphalt; the grafting rate of the maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer is more than 5 percent; the SBS modifier is at least one of SBS YH-791, SBS YH-792, SBS T161B and LG 501S; the styrene-butadiene rubber is powder styrene-butadiene rubber PSBR or KLSBR granular styrene-butadiene rubber; the tackifying and weather-resistant resin is terpene resin or rosin resin; the petroleum resin is C9 petroleum resin or C5 petroleum resin; the high-strength anti-crack organic fiber is polyester fiber or lignin fiber; the anti-aging agent is anti-aging agent 264; the filler is talcum powder, light calcium carbonate, heavy calcium carbonate or sericite powder.
4. A method of preparing a self-adhesive asphalt cement according to any one of claims 1 to 3, characterized in that: comprises the following steps of (a) carrying out,
(1) weighing the raw materials in parts by weight;
(2) pumping asphalt, naphthenic oil and liquid rubber into a batching tank, heating to 190 +/-5 ℃, keeping the stirring speed at 50-70 r/min for 0.5-1.5 hours, and ensuring uniform mixing;
(3) then adding the reinforcing agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(4) then adding SBS modifier, keeping temperature at 190 + -5 deg.C, stirring for 1.8-2.2 hr to ensure full swelling, development and uniform dispersion;
(5) then adding styrene butadiene rubber, keeping the temperature at 190 +/-5 ℃, and stirring for 1.3-1.7 hours to ensure full swelling and uniform dispersion;
(6) then adding an organic silicon coupling agent, keeping the temperature at 190 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(7) then adding tackifying weather-resistant resin and petroleum resin, keeping the temperature at 180 +/-5 ℃, and stirring for 0.8-1.2 hours to ensure uniform dispersion;
(8) grinding the mixture prepared in the step (7) for 1-3 times by using a colloid mill;
(9) then adding high-strength anti-crack organic fiber and filler, keeping the temperature at 170 +/-5 ℃, and stirring for 1.8-2.2 hours to ensure uniform dispersion;
(10) and adding an anti-aging agent, keeping the temperature at 170 +/-5 ℃, stirring for 0.8-1.2 hours, and ensuring uniform dispersion to obtain the prepared self-adhesive asphalt cement.
5. The method of preparing a self-adhesive asphalt cement according to claim 4, characterized in that: in the step (2), the stirring speed is 60 revolutions per minute, the stirring time is 1 hour, and the uniform mixing is ensured; stirring for 1 hour in the step (3); stirring for 2 hours in the step (4); stirring for 1.5 hours in the step (5); stirring for 1 hour in the step (6); stirring for 1 hour in the step (7); stirring for 2 hours in the step (9); stirring for 1 hour in step (10).
6. A crack plaster capable of being bonded with a wet base surface is characterized in that: the self-adhesive asphalt cement comprises a high-molecular strong cross membrane or a polyester-cotton glass fiber composite cloth, wherein the self-adhesive asphalt cement of any one of claims 1 to 5 is coated on two surfaces of the high-molecular strong cross membrane or the polyester-cotton glass fiber composite cloth, then polypropylene non-woven fabrics or glass fiber cloth is coated on the upper surface of the high-molecular strong cross membrane or the polyester-cotton glass fiber composite cloth coated with the self-adhesive asphalt cement, and an isolation membrane is coated on the lower surface of the high-molecular strong cross membrane or the polyester-cotton glass.
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| CN110452618B (en) * | 2019-08-14 | 2021-09-03 | 广东万泓九鼎石油科技有限公司 | Low-density non-cured rubber asphalt waterproof coating and preparation method thereof |
| CN111592771B (en) * | 2020-06-15 | 2021-12-31 | 山东高速建材集团有限公司 | High-performance direct-vat asphalt modifier and preparation method thereof |
| CN112663346B (en) * | 2020-12-29 | 2021-08-31 | 南通市交通建设工程有限公司 | High-strength stress absorption film material and preparation method thereof |
| CN113667452B (en) * | 2021-09-15 | 2023-02-03 | 山东赛高新材料有限公司 | Water-resistant adhesive and preparation method and application thereof |
| CN114539942A (en) * | 2022-03-08 | 2022-05-27 | 新疆心路科技有限公司 | Dustproof and impermeable adhesive for bridge expansion joint and preparation method thereof |
| CN115637053B (en) * | 2022-09-02 | 2023-09-15 | 四川东方雨虹建筑材料有限公司 | Quick preparation method of SBS modified asphalt |
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