Single-component microcapsule type non-curing rubber asphalt waterproof coating and preparation method thereof

Abstract

The invention discloses a single-component microcapsule type non-cured rubber asphalt waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof coatings, and the single-component microcapsule type non-cured rubber asphalt waterproof coating is mainly composed of an asphalt component and a microcapsule component. The asphalt component is composed of 39-49% of asphalt, 1% of rubber oil, 10% of a modifier (composed of 4% of styrene butadiene rubber, 4% of paraffin powder and 2% of styrene-butadiene-styrene), 8% of soybean oil, 22-32% of talcum powder and heavy calcium carbonate filler (in a ratio of 1: 1), 4% of carbamate and 6% of a polyamide curing agent. The microcapsule component takes epoxy resin, glass fiber and mica powder as core materials, and the capsule wall is obtained by reacting ethyl methacrylate, methyl methacrylate, an initiator and a dispersing agent at a constant temperature of 80 DEG C. According to the application, direct spraying at normal temperature in the spraying process can be realized, the labor cost is reduced, the problem of uneven spraying is solved, and the long-term durability of the waterproof coating can be improved due to the slow release effect of the capsule.

Description

Technical Field

[0001] The present invention relates to the technical field of waterproof coatings, and particularly relates to a one-component microcapsule-type non-curing rubber asphalt waterproof coating and a preparation method thereof. Background Art

[0002] At present, non-curing asphalt waterproof coatings have the characteristics of good environmental protection, self-healing property, extensibility, adhesion, low-temperature flexibility and good compatibility with various coils, and have gradually become a new type of asphalt waterproof material. The main components of non-curing asphalt waterproof coatings are asphalt and rubber, and also include various fillers such as temperature control agents, softening oils and other modifiers. At present, most of the relatively mature non-curing asphalt waterproof coatings on the market are heated to a certain temperature by a high-temperature melting method to make them have good fluidity, and then sprayed or scraped for construction. However, during the construction process, dripping or flowing phenomena are likely to occur, and the energy consumption for construction using this method is relatively high.

[0003] In view of the above problems, cold-applied non-curing asphalt waterproof coatings can improve the bonding performance after spraying through a curing reaction. Common curing methods include epoxy resin, vulcanized rubber and polyurethane curing, among which epoxy resin that can be cured at room temperature is the most common. Epoxy resin needs to combine with a curing agent to undergo an epoxidation reaction to form a network structure with relatively high strength. In practical applications, to avoid premature curing, the construction often achieves the effect by spraying components A and B simultaneously. However, this method requires a large amount of labor during the construction process and may result in uneven spraying when components A and B are sprayed simultaneously. Summary of the Invention

[0004] The present invention aims at the existing problems and provides a one-component microcapsule-type non-curing rubber asphalt waterproof coating and a preparation method thereof, which can not only solve the problems of dripping and flowing of the waterproof coating during the construction process and high energy consumption of hot construction, but also solve the problems of labor and uneven spraying, and is a meaningful research.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In a first aspect, a one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component; in the asphalt component, the modifier is composed of 4% styrene-butadiene rubber, 4% paraffin powder and 2% styrene-butadiene-styrene, the filler is heavy calcium carbonate powder and talc powder, the compatibilizer is urethane, and the curing agent is a polyamide curing agent; in the microcapsule, chitosan is used as a dispersant, 2,2'-azobisisobutyronitrile is used as an initiator, and the mixture is reacted in a four-necked flask in an environment with a constant temperature of 80 °C to obtain a microcapsule-type material; the capsule-type component and the asphalt component are uniformly mixed to obtain a one-component microcapsule-type non-curing rubber asphalt waterproof coating.

[0007] Second aspect, a preparation method of a one-component microcapsule-type non-curing rubber asphalt waterproof coating, specifically comprising the following steps:

[0008] Prepare an asphalt component, which is composed of 39-49 parts by weight of asphalt, 1 part by weight of rubber oil, 10 parts by weight of modifier, 8 parts by weight of soybean oil, 22-32 parts by weight of talc powder and heavy calcium carbonate filler, 4 parts by weight of urethane and 6 parts by weight of polyamide curing agent; the specific synthesis process is to put asphalt, rubber oil and modifier into a reaction kettle, heat to 190-200 °C, stir for 2-3 h, naturally cool to 90-100 °C, add soybean oil, stir for 30 min, naturally cool to 60 °C, add filler, stir for 30 min, add urethane compatibilizer and polyamide curing agent after naturally cooling to room temperature, stir for 30 min, discharge and package to obtain the asphalt component;

[0009] Prepare a microcapsule component, the microcapsule component uses epoxy resin, glass fiber, and mica powder as the core material, and the capsule wall is obtained by reacting ethyl methacrylate, methyl methacrylate, initiator and dispersant at a constant temperature of 80 °C. The specific synthesis process is to completely dissolve 5 parts by weight of guar gum in deionized water, with a stirring speed of 600 r / min and a stirring time of 40 min; put 5-45 parts by weight of ethyl methacrylate, methyl methacrylate, chitosan and 2,2'-azobisisobutyronitrile into a beaker and perform ultrasonic treatment for 5 min to fully dissolve the initiator in the beaker; add 50-90 parts by weight of epoxy resin, glass fiber and mica powder to the beaker and continue ultrasonic treatment for 5 min to dissolve and uniformly disperse the epoxy resin; pour the uniformly mixed mixture in the beaker into a four-necked flask, stir at a stirring speed of 1500 r / min for 1.5 h, then, at a stirring speed of 1000 r / min and a constant temperature of 75 °C, react for 2.5 h, then raise the temperature and continue to react at a constant temperature of 80 °C for 1.5 h; after the reaction is completed, quickly filter the reaction product in the four-necked flask while it is hot, wash it repeatedly with ethanol and water, and then dry it in an oven at a constant temperature of 50 °C for 36 h to obtain a microcapsule-type epoxy resin material.

[0010] The present invention has the following advantages compared with the prior art:

[0011] This application uses an organic synthesis method to encapsulate epoxy resin with capsules, and further mixes it with the asphalt component to obtain a microcapsule-type waterproof coating. This waterproof coating can be directly sprayed during the spraying process, reducing labor costs and solving the problem of uneven spraying, and the long-term durability of the waterproof coating can be improved due to the slow-release effect of the capsules. Specific embodiments

[0012] The present invention will be described in detail below in conjunction with embodiments.

[0013] Embodiment 1:

[0014] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0015] Asphalt component: composed of 49% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 22% talcum powder and heavy calcium carbonate powder (1:1), 4% carbamate and 6% polyamide curing agent;

[0016] Microcapsule component: Using epoxy resin and talcum powder as core materials, the capsule wall is obtained by reacting ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile and chitosan at a constant temperature of 80°C.

[0017] (1) Put 49% asphalt, 1% rubber oil and 10% modifier into the reaction kettle, heat to 190 - 200°C, stir for 2 - 3 h, naturally cool to 90 - 100°C, add soybean oil, stir for 30 min, naturally cool to 60°C, add 22% talcum powder and heavy calcium carbonate powder filler, stir for 30 min, and after naturally cooling to room temperature, add 4% carbamate compatibilizer and 6% polyamide curing agent, stir for 30 min, and then discharge and package.

[0018] (2) Completely dissolve 5% guar gum in deionized water, put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant) and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and ultrasonically dissolve until fully dissolved; add 50% epoxy resin and glass fiber, mica powder and talcum powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonically dissolving the epoxy resin and uniformly dispersing it, and continue reacting for 1.5 h in an environment of constant temperature of 80°C; after the reaction is completed, quickly filter the reaction product in the four-neck flask while it is hot, and wash it many times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0019] (3) During use, the asphalt component and the microcapsule component are mixed evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0020] Embodiment 2:

[0021] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0022] Asphalt component: composed of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talcum powder and heavy calcium carbonate powder (1:1), 4% carbamate and 6% polyamide curing agent;

[0023] Microcapsule component: The core material is composed of epoxy resin and talcum powder, and the capsule wall is obtained by reacting ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile and chitosan at a constant temperature of 80 °C.

[0024] (1) Put 44% asphalt, 1% rubber oil and 10% modifier into the reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add soybean oil, stir for 30 min, naturally cool to 60 °C, add 27% talcum powder and heavy calcium carbonate powder filler, stir for 30 min, and then add 4% urethane compatibilizer and 6% polyamide curing agent after naturally cooling to room temperature, stir for 30 min, and then discharge and package.

[0025] (2) Completely dissolve 5% guar gum in deionized water, put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant) and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved; add 50% epoxy resin and glass fiber, mica powder and talcum powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve the epoxy resin and disperse it evenly, and continue to react for 1.5 h in an environment of constant temperature of 80 °C; after the reaction is completed, quickly perform hot filtration on the reaction product in the four-neck flask while it is hot, and wash it many times with ethanol and water, and then dry it to obtain microcapsule-type epoxy resin material.

[0026] (3) During use, the asphalt component and the microcapsule component are mixed evenly according to the mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0027] Example 3:

[0028] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0029] Asphalt component: It is composed of 39% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 32% talcum powder and heavy calcium carbonate powder (1:1), 4% urethane and 6% polyamide curing agent;

[0030] Microcapsule component: The core material is composed of epoxy resin and talcum powder, and the capsule wall is obtained by reacting ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile and chitosan at a constant temperature of 80 °C.

[0031] (1) Put 39% asphalt, 1% rubber oil and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 32% talcum powder and heavy calcium carbonate powder filler, stir for 30 min, and after naturally cooling to room temperature, add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and then discharge and package.

[0032] (2) Completely dissolve 5% guar gum in deionized water, put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant) and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) together into a beaker and perform ultrasonic treatment until fully dissolved; add 50% epoxy resin and glass fiber, mica powder and talcum powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve the epoxy resin and disperse it evenly, and continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C; after the reaction is completed, quickly perform hot filtration on the reaction product in the four-neck flask while it is hot, and wash it many times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0033] (3) During use, mix the asphalt component and the microcapsule component evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0034] Example 4:

[0035] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0036] The asphalt component: It is composed of 49% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 22% talcum powder and heavy calcium carbonate powder (1:1), 4% urethane and 6% polyamide curing agent;

[0037] The microcapsule component: The core material is made of epoxy resin and talcum powder, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile and chitosan in a reaction at a constant temperature of 80 °C.

[0038] (1) Put 49% asphalt, 1% rubber oil and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 22% talcum powder and heavy calcium carbonate powder filler, stir for 30 min, and after naturally cooling to room temperature, add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and then discharge and package.

[0039] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (with an addition ratio of 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (with an addition ratio of 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve and uniformly disperse the epoxy resin. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-neck flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0040] (3) During use, the asphalt component and the microcapsule component are mixed evenly at a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0041] Example Five:

[0042] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0043] Asphalt component: composed of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0044] Microcapsule component: Using epoxy resin and talc powder as the core material, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0045] (1) Put 44% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 27% talc powder and heavy calcium carbonate powder filler, stir for 30 min, naturally cool to room temperature, then add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and discharge and package.

[0046] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve and uniformly disperse the epoxy resin. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction is completed, quickly perform hot filtration on the reaction product in the four-neck flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0047] (3) During use, mix the asphalt component and the microcapsule component evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0048] Example VI:

[0049] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0050] The asphalt component: consists of 39% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 32% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0051] The microcapsule component: uses epoxy resin and talc powder as the core material, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0052] (1) Put 39% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 32% talc powder and heavy calcium carbonate powder filler, stir for 30 min, and then add 4% urethane compatibilizer and 6% polyamide curing agent after naturally cooling to room temperature, stir for 30 min, and discharge and package.

[0053] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve and uniformly disperse the epoxy resin. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction is completed, quickly perform hot filtration on the reaction product in the four-necked flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0054] (3) During use, mix the asphalt component and the microcapsule component evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0055] Example VII:

[0056] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0057] Asphalt component: composed of 49% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 22% talc powder and heavy calcium carbonate powder (1:1), 4% carbamate, and 6% polyamide curing agent;

[0058] Microcapsule component: Using epoxy resin and talc powder as the core material, the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0059] (1) Put 49% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 22% talc powder and heavy calcium carbonate powder filler, stir for 30 min, naturally cool to room temperature, then add 4% carbamate compatibilizer and 6% polyamide curing agent, stir for 30 min, and discharge and package.

[0060] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (with an addition ratio of 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 90% epoxy resin, glass fiber, and mica powder talc powder (with an addition ratio of 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve the epoxy resin and disperse it evenly. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-necked flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0061] (3) During use, mix the asphalt component and the microcapsule component evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0062] Example VIII:

[0063] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0064] The asphalt component: consists of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0065] The microcapsule component: uses epoxy resin and talc powder as the core material, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0066] (1) Put 44% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 27% talc powder and heavy calcium carbonate powder filler, stir for 30 min, and then add 4% urethane compatibilizer and 6% polyamide curing agent after naturally cooling to room temperature, stir for 30 min, and then discharge and package.

[0067] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 90% epoxy resin, glass fiber, and mica powder talc powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve and uniformly disperse the epoxy resin. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction is completed, quickly perform hot filtration on the reaction product in the four-necked flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0068] (3) During use, mix the asphalt component and the microcapsule component evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0069] Example Nine:

[0070] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0071] Asphalt component: composed of 39% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 32% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0072] Microcapsule component: Using epoxy resin and talc powder as the core material, the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0073] (1) Put 39% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 32% talc powder and heavy calcium carbonate powder filler, stir for 30 min, and then add 4% urethane compatibilizer and 6% polyamide curing agent after naturally cooling to room temperature, stir for 30 min, and discharge and package.

[0074] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (with an addition ratio of 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 90% epoxy resin, glass fiber, and mica powder talc powder (with an addition ratio of 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve and uniformly disperse the epoxy resin. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-neck flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0075] (3) During use, mix the asphalt component and the microcapsule component evenly according to a mass ratio of 2:1 and then the test can be carried out. The product performance test data are shown in Table 1.

[0076] Comparative Example 1:

[0077] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0078] The asphalt component: consists of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0079] The microcapsule component: uses epoxy resin and talc powder as the core material, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0080] (1) Put 44% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 27% talc powder and heavy calcium carbonate powder filler, stir for 30 min, naturally cool to room temperature, then add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and discharge and package.

[0081] (2) Dissolve 5% guar gum completely in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve the epoxy resin and disperse it evenly. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-neck flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0082] (3) During use, the asphalt component and the microcapsule component are mixed evenly at a mass ratio of 1:2 and then the test can be carried out. The product performance test data is shown in Table 3.

[0083] Comparative Example 2:

[0084] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0085] The asphalt component: consists of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0086] The microcapsule component: uses epoxy resin and talc powder as the core material, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0087] (1) Put 44% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat to 190 - 200 °C, stir for 2 - 3 h, cool naturally to 90 - 100 °C, add 8% soybean oil, stir for 30 min, cool naturally to 60 °C, add 27% talc powder and heavy calcium carbonate powder filler, stir for 30 min, cool naturally to room temperature, then add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and discharge and package.

[0088] (2) Dissolve 5% guar gum completely in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (the addition ratio is 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (the addition ratio is 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve the epoxy resin and disperse it evenly. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-neck flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0089] (3) During use, the asphalt component and the microcapsule component are mixed evenly at a mass ratio of 1:1 and then the test can be carried out. The product performance test data is shown in Table 3.

[0090] Comparative Example 3:

[0091] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0092] The asphalt component: consists of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0093] The microcapsule component: uses epoxy resin and talc powder as the core material, and the capsule wall is obtained from ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan in a reaction at a constant temperature of 80 °C.

[0094] (1) Put 44% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat it to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 27% talc powder and heavy calcium carbonate powder filler, stir for 30 min, naturally cool to room temperature, then add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and discharge and package.

[0095] (2) Completely dissolve 5% guar gum in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (with an addition ratio of 4.5:3:2:0.5) into a beaker and perform ultrasonic treatment until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (with an addition ratio of 1:0.5:0.5) to the beaker and continue ultrasonic treatment to dissolve the epoxy resin and disperse it evenly. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-necked flask, wash it multiple times with ethanol and water, and dry it to obtain the microcapsule-type epoxy resin material.

[0096] (3) During use, mix the asphalt component and the microcapsule component evenly at a mass ratio of 2:1 and then the test can be carried out. The product performance test data is shown in Table 3.

[0097] Comparative Example 4:

[0098] A one-component microcapsule-type non-curing rubber asphalt waterproof coating is composed of an asphalt component and a microcapsule component;

[0099] Asphalt component: composed of 44% asphalt, 1% rubber oil, 10% modifier, 8% soybean oil, 27% talc powder and heavy calcium carbonate powder (1:1), 4% urethane, and 6% polyamide curing agent;

[0100] Microcapsule component: Using epoxy resin and talc powder as the core material, the capsule wall is obtained from the reaction of ethyl methacrylate, methyl methacrylate, 2,2'-azobisisobutyronitrile, and chitosan at a constant temperature of 80 °C.

[0101] (1) Put 44% asphalt, 1% rubber oil, and 10% modifier into a reaction kettle, heat it to 190 - 200 °C, stir for 2 - 3 h, naturally cool to 90 - 100 °C, add 8% soybean oil, stir for 30 min, naturally cool to 60 °C, add 27% talc powder and heavy calcium carbonate powder filler, stir for 30 min, naturally cool to room temperature, then add 4% urethane compatibilizer and 6% polyamide curing agent, stir for 30 min, and discharge and package.

[0102] (2) Dissolve 5% guar gum completely in deionized water. Put 45% ethyl methacrylate, methyl methacrylate, chitosan (dispersant), and 2,2'-azobisisobutyronitrile (initiator) (with an addition ratio of 4.5:3:2:0.5) into a beaker and ultrasonicate until fully dissolved. Add 70% epoxy resin, glass fiber, and mica powder talc powder (with an addition ratio of 1:0.5:0.5) to the beaker and continue ultrasonication to dissolve the epoxy resin and disperse it evenly. Continue the reaction for 1.5 h in an environment with a constant temperature of 80 °C. After the reaction ends, quickly perform hot filtration on the reaction product in the four-neck flask, and wash it multiple times with ethanol and water, and then dry it to obtain the microcapsule-type epoxy resin material.

[0103] (3) During use, mix the asphalt component and the microcapsule component evenly at a mass ratio of 3:1 and then the test can be carried out. The product performance test data are shown in Table 3.

[0104] Table 1 Physical and Mechanical Properties of Examples 1-5

[0105]

[0106]

[0107] Table 2 Physical and Mechanical Properties of Examples 6-9

[0108]

[0109]

[0110] Table 3 Physical and Mechanical Properties of Comparative Examples 1-4

[0111]

[0112]

[0113] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation manners. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A one-component microcapsule type non-curing rubber asphalt waterproof coating, characterized in that: It is composed of an asphalt component and a microcapsule component; the modifier in the asphalt component is composed of 4% styrene-butadiene rubber, 4% paraffin powder and 2% styrene-butadiene-styrene, and the mixture is reacted in a four-necked flask at a constant temperature of 80°C to obtain a microcapsule-type material; the capsule-type component and the asphalt component are evenly mixed to obtain a single-component microcapsule-type non-curing rubber asphalt waterproof coating.

2. The one-component microcapsule type non-curing rubber asphalt waterproof coating according to claim 1, characterized in that: The filler is heavy calcium carbonate powder and talcum powder; the compatibilizer is urethane, and the curing agent is polyamide curing agent.

3. The one-component microcapsule type non-curing rubber asphalt waterproof coating according to claim 2, characterized in that: Chitosan was used as a dispersant and 2,2'-azobisisobutyronitrile was used as an initiator in the microcapsules.

4. A method for preparing a one-component microcapsule type non-curing rubber asphalt waterproof coating as claimed in any one of claims 1 to 3, characterized in that: The preparation method specifically comprises the following steps: An asphalt component is prepared, wherein the asphalt component is composed of 39 to 49 parts by weight of asphalt, 1 part by weight of rubber oil, 10 parts by weight of a modifier, 8 parts by weight of soybean oil, 22 to 32 parts by weight of talc and heavy calcium carbonate filler, 4 parts by weight of carbamate and 6 parts by weight of a polyamide curing agent; the specific synthesis process is asphalt, rubber oil and modifier are put into a reactor, heated to 190 to 200° C., stirred for 2 to 3 hours, naturally cooled to 90 to 100° C., soybean oil is added, stirred for 30 minutes, naturally cooled to 60° C., filler is added, stirred for 30 minutes, naturally cooled to room temperature, carbamate compatibilizer and polyamide curing agent are added, stirred for 30 minutes, and the material is discharged and packaged to obtain the asphalt component; A microcapsule component is prepared. The microcapsule component is made of epoxy resin, glass fiber and mica powder as core materials. The capsule wall is obtained by reacting ethyl methacrylate, methyl methacrylate, an initiator and a dispersant at a constant temperature of 80°C. The specific synthesis process is as follows: 5 parts by weight of guar gum is completely dissolved in deionized water, the stirring speed is 600r / min, and the stirring time is 40min; 5-45 parts by weight of ethyl methacrylate, methyl methacrylate, chitosan and 2,2'-azobisisobutyronitrile are put into a beaker together, and ultrasonic treatment is performed for 5min to fully dissolve the initiator in the beaker; 50-90 parts by weight of epoxy resin and glass fiber are added into the beaker; glass fiber and mica powder, and continue ultrasonic treatment for 5 minutes to dissolve the epoxy resin and evenly disperse it; pour the evenly mixed mixture in the beaker into a four-necked flask, stir it at a stirring speed of 1500r / min for 1.5h, then react at a stirring speed of 1000r / min and a constant temperature of 75℃ for 2.5h, then increase the temperature and continue to react at a constant temperature of 80℃ for 1.5h; after the reaction, quickly filter the reaction product in the four-necked flask while hot, wash it with ethanol and water several times, and then dry it in an oven at a constant temperature of 50℃ for 36h to obtain a microcapsule type epoxy resin material.

5. The method for preparing the one-component microcapsule type non-curing rubber asphalt waterproof coating according to claim 4, characterized in that: The modifier is composed of 4% styrene-butadiene rubber, 4% paraffin powder and 2% styrene-butadiene-styrene.

6. The method for preparing the one-component microcapsule type non-curing rubber asphalt waterproof coating according to claim 5, characterized in that: The ratio of talcum powder to heavy calcium carbonate filler is 1:1.

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