CN110591400A - Flexible waterproof material capable of self-healing in water - Google Patents
Flexible waterproof material capable of self-healing in water Download PDFInfo
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- CN110591400A CN110591400A CN201911037645.1A CN201911037645A CN110591400A CN 110591400 A CN110591400 A CN 110591400A CN 201911037645 A CN201911037645 A CN 201911037645A CN 110591400 A CN110591400 A CN 110591400A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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Abstract
The invention discloses a water-swelling self-healing flexible waterproof material, which comprises 60-90% of SBS modified emulsified asphalt and 10-40% of water-swelling self-healing waterproof filler in parts by weight, wherein the water-swelling self-healing waterproof filler consists of an expansion source core and a non-water-soluble envelope for embedding the expansion source core, and the water-swelling self-healing waterproof filler comprises the following components in parts by weight: 100 parts of an expansion source, 1-5 parts of a long-chain alkyl compound and 8-30 parts of a coating agent; through directly adding water-swelling self-healing waterproof filler in the flexible waterproof material and not changing original processing technology and construction process, SBS modified emulsified asphalt and water-swelling self-healing waterproof filler compatibility are good, strengthen in coordination on waterproof performance, receive the back of damaging when waterproof coating, can lead to the swelling self-healing waterproof filler in the waterproof material to expose, water-swelling, fill crack, hole and waterproof layer weak department, and compensate the expansibility, make waterproof construction pressurized compactness once more, reach duplicate protection's purpose, strengthen waterproof dynamics and waterproof persistence.
Description
Technical Field
The invention relates to a waterproof material, in particular to a flexible waterproof material capable of self-healing when meeting water.
Background
The flexible waterproof material is mainly asphalt, asphalt felt and other organic material, also called asphalt felt coiled material waterproof layer, and is waterproof layer formed by using asphalt felt, glass cloth and other fiber fabric as base layer and various kinds of cementing material asphalt, etc. to adhere the coiled material to the leveling layer on the roof structure board. The flexible waterproof material has toughness and is suitable for certain deformation and expansion and contraction, but the plasticity of the flexible waterproof material is poor, so that the flexible waterproof material cannot well treat waterproof parts with variable or narrow opposite properties, gaps and weak points are easily left, the parts with damp base surfaces and high base surface osmotic pressure are easily layered and fall off, the formed waterproof layer is easily damaged by puncture, and the service life of the flexible waterproof material is short.
Disclosure of Invention
In view of the above, the present invention provides a water-swelling self-healing flexible waterproof material, which is prepared by directly adding a water-swelling self-healing waterproof filler to SBS modified emulsified asphalt without changing the original treatment process and construction process, and when a waterproof coating is damaged, the swelling self-healing waterproof filler in the waterproof material is exposed, swells when it encounters water, fills cracks, and compensates for swelling force, so that a waterproof structure is compressed and compacted again to achieve the purpose of double protection.
The water-swelling self-healing flexible waterproof material comprises, by weight, 60-90% of SBS modified emulsified asphalt and 10-40% of water-swelling self-healing waterproof filler, wherein the water-swelling self-healing waterproof filler comprises an expansion source core and a non-water-soluble coating for embedding the expansion source core, and the water-swelling self-healing waterproof filler comprises the following raw materials in parts by weight: 100 parts of an expansion source, 1-5 parts of a long-chain alkyl compound and 8-30 parts of a coating agent, wherein the expansion source comprises bentonite and/or super absorbent resin;
further, the raw materials of the waterproof material consist of 70 percent of SBS modified emulsified asphalt and 30 percent of water-swelling self-healing waterproof filler according to the weight ratio;
further, the long-chain alkyl compound is an alkyl compound of C16-C18;
further, the long-chain alkyl compound is one or a mixture of more than two of stearic acid and salt compounds thereof, oleic acid and salt compounds thereof, stearamide, octadecylamine, octadecyl trimethyl ammonium chloride and hexadecyl dimethyl ammonium chloride;
further, the coating agent is one or a mixture of more than two of paraffin, chlorinated paraffin, solid asphalt, modified asphalt, rosin and modified rosin;
further, the bentonite and the super absorbent resin are both powder;
further, the waterproof filler comprises the following raw materials in parts by weight: 100 parts of an expansion source, 3 parts of a long-chain alkyl compound and 20 parts of a coating agent.
The invention has the beneficial effects that: according to the water-swelling self-healing waterproof material, the water-swelling self-healing waterproof filler is directly added into the flexible waterproof material without changing the original treatment process and construction process, the SBS modified emulsified asphalt and the water-swelling self-healing waterproof filler have good compatibility, and the waterproof performance is cooperatively enhanced. The adopted expansion self-healing waterproof filler takes bentonite powder and super-absorbent resin powder as expansion sources, forms independent waterproof powder filler after being embedded by the coating agent, can be filled in flexible waterproof materials without changing the construction process of the flexible waterproof materials, cannot influence the original performance of the materials after being added, and has simple raw materials and strong universality.
Detailed Description
The water-swelling self-healing flexible waterproof material comprises 60-90% of SBS modified emulsified asphalt and 10-40% of water-swelling self-healing waterproof filler according to the weight ratio, wherein the water-swelling self-healing waterproof filler comprises an expansion source inner core and a water-insoluble coating embedding the expansion source inner core, and the water-swelling self-healing waterproof filler comprises the following components in parts by weight: 100 parts of an expansion source, 1-5 parts of a long-chain alkyl compound and 8-30 parts of a coating agent, wherein the expansion source comprises bentonite and/or super absorbent resin; the water-swelling self-healing waterproof filler is of a membrane core structure, the swelling source bentonite core super-absorbent resin is used as a core, and the water-swelling self-healing waterproof filler is added into the flexible waterproof material through embedding treatment, so that the performance and the treatment process of the flexible waterproof material cannot be influenced. The water-meeting self-healing flexible waterproof material can be prepared by mixing and grinding the raw materials, and the process is simple.
In this embodiment, the long-chain alkyl compound is one or a mixture of two or more of stearic acid and a salt compound thereof, oleic acid and a salt compound thereof, stearamide, octadecylamine, octadecyltrimethyl ammonium chloride, and hexadecyl dimethyl ammonium chloride.
In this embodiment, the coating agent is one or a mixture of two or more of paraffin, chlorinated paraffin, solid asphalt, modified asphalt, rosin and modified rosin; the coating agent is insoluble in water, is solid powder or paste at room temperature, and has a melting temperature lower than 130 ℃.
In this embodiment, the bentonite and the super absorbent resin are both powders;
in this embodiment, the bentonite, the super water absorbent resin and the coating agent are mixed and ground to obtain the self-healing flexible waterproof material meeting water. The grinding mode is sand grinding, ball milling, roller milling and the like;
in the embodiment, the waterproof filler comprises the following raw materials in parts by weight: 100 parts of an expansion source, 3 parts of a long-chain alkyl compound and 20 parts of a coating agent. Is a preferred embodiment.
Example one
According to the water-swelling self-healing flexible waterproof material, the raw materials of the waterproof material consist of 60% of SBS modified emulsified asphalt and 40% of water-swelling self-healing waterproof filler in percentage by weight; the self-healing waterproof filler capable of swelling in water comprises the following raw materials in parts by weight: 100 parts of bentonite, 1 part of long-chain alkyl compound and 8 parts of coating agent.
In this embodiment, the long-chain alkyl compound is stearic acid, and the purpose of the present invention can be achieved by replacing stearic acid with one of a salt compound of stearic acid, oleic acid and a salt compound thereof, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, or replacing stearic acid with a salt compound of stearic acid, oleic acid and a salt compound thereof, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride in parts by weight.
In this embodiment, the coating agent is paraffin, and in this embodiment, the paraffin is replaced by one of chlorinated paraffin, solid asphalt, modified asphalt, rosin, and modified rosin in parts by weight, or the paraffin is replaced by a mixture of chlorinated paraffin, solid asphalt, modified asphalt, rosin, and modified rosin in parts by weight, so as to obtain a qualified product.
Example two
In the water-swelling self-healing flexible waterproof material of the embodiment, the raw materials of the waterproof material consist of 90% of SBS modified emulsified asphalt and 10% of water-swelling self-healing waterproof filler by weight; the water-swellable self-healing waterproof filler comprises the following raw materials in parts by weight: 100 parts of super absorbent resin, 5 parts of long-chain alkyl compound and 30 parts of coating agent.
In this embodiment, the long-chain alkyl compound is a salt compound of stearic acid, and the stearic acid is replaced by one of stearic acid, oleic acid and a salt compound thereof, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, or replaced by a mixture of a salt compound of stearic acid and stearic acid, oleic acid and a salt compound thereof, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, so as to achieve the object of the present invention.
In this embodiment, the coating agent is chlorinated paraffin, and in this embodiment, the chlorinated paraffin is replaced by one of paraffin, solid asphalt, modified asphalt, rosin, and modified rosin in parts by weight, or the chlorinated paraffin is replaced by a mixture of paraffin, solid asphalt, modified asphalt, rosin, and modified rosin in parts by weight, so that qualified products are obtained.
EXAMPLE III
In the water-swelling self-healing flexible waterproof material of the embodiment, raw materials of the waterproof material consist of 65% of SBS modified emulsified asphalt and 35% of water-swelling self-healing waterproof filler by weight; the water-swellable self-healing waterproof filler comprises the following raw materials in parts by weight: 100 parts of bentonite, 1 part of long-chain alkyl compound and 30 parts of coating agent.
In this embodiment, the long-chain alkyl compound is oleic acid, and the object of the present invention can be achieved by replacing oleic acid with one of stearic acid, a salt compound of oleic acid, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, or replacing oleic acid with a mixture of stearic acid, a salt compound thereof, a salt compound of oleic acid, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride.
In this embodiment, the coating agent is solid asphalt, and in this embodiment, the solid asphalt is replaced by one of chlorinated paraffin, modified asphalt, rosin, and modified rosin in parts by weight, or the solid asphalt is replaced by a mixture of chlorinated paraffin, modified asphalt, rosin, and modified rosin in parts by weight, so that qualified products are obtained.
Example four
In the water-swelling self-healing flexible waterproof material of the embodiment, the raw materials of the waterproof material consist of 80% of SBS modified emulsified asphalt and 20% of water-swelling self-healing waterproof filler by weight; the water-swellable self-healing waterproof filler comprises the following raw materials in parts by weight: 20 parts of bentonite, 80 parts of super absorbent resin, 5 parts of long-chain alkyl compound and 8 parts of coating agent.
In this embodiment, the long-chain alkyl compound is a salt compound of oleic acid, and the salt compound of oleic acid is replaced by one of a salt compound of stearic acid, oleic acid, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, or replaced by a mixture of a salt compound of oleic acid and a salt compound of stearic acid, oleic acid, stearamide, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, so as to achieve the object of the present invention.
In this embodiment, the coating agent is modified asphalt, and in this embodiment, the modified asphalt is replaced by one of chlorinated paraffin, solid asphalt, paraffin, rosin and modified rosin in parts by weight, or the modified asphalt is replaced by a mixture of chlorinated paraffin, solid asphalt, paraffin, rosin and modified rosin in parts by weight, so that qualified products are obtained.
EXAMPLE five
In the water-swelling self-healing flexible waterproof material of the embodiment, the raw materials of the waterproof material consist of 75% of SBS modified emulsified asphalt and 25% of water-swelling self-healing waterproof filler by weight; the water-swellable self-healing waterproof filler comprises the following raw materials in parts by weight: 30 parts of bentonite, 70 parts of super absorbent resin, 2 parts of long-chain alkyl compound and 15 parts of coating agent.
In this embodiment, the long-chain alkyl compound is stearamide, and the stearamide is replaced by one of stearic acid, a salt compound of stearic acid, oleic acid and a salt compound thereof, stearic acid, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, or replaced by a mixture of a salt compound of stearamide and stearic acid, oleic acid and a salt compound thereof, octadecylamine, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, by weight, the purpose of the present invention can be achieved.
In this embodiment, the coating agent is rosin, and in this embodiment, the rosin is replaced by one of chlorinated paraffin, solid asphalt, modified asphalt, paraffin, and modified rosin in parts by weight, or replaced by a mixture of chlorinated paraffin, solid asphalt, modified asphalt, paraffin, and modified rosin in parts by weight, so as to obtain a qualified product.
EXAMPLE six
In the water-swelling self-healing flexible waterproof material of the embodiment, the raw materials of the waterproof material consist of 70% of SBS modified emulsified asphalt and 30% of water-swelling self-healing waterproof filler by weight; the water-swellable self-healing waterproof filler comprises the following raw materials in parts by weight: the waterproof filler comprises the following raw materials in parts by weight: 50 parts of bentonite, 50 parts of super absorbent resin, 3 parts of long-chain alkyl compound and 20 parts of coating agent.
In this embodiment, the long-chain alkyl compound is octadecylamine, and the long-chain alkyl compound is replaced by one of stearic acid, a salt compound of stearic acid, oleic acid and a salt compound thereof, stearamide, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, or replaced by a mixture of a salt compound of octadecylamine and stearic acid, oleic acid and a salt compound thereof, stearamide, stearic acid, octadecyltrimethylammonium chloride, and hexadecyldimethylammonium chloride, according to parts by weight, so as to achieve the purpose of the present invention.
In this embodiment, the coating agent is modified rosin, and in this embodiment, the modified rosin is replaced by one of chlorinated paraffin, solid asphalt, modified asphalt, rosin and paraffin in parts by weight, or the modified rosin is replaced by a mixture of chlorinated paraffin, solid asphalt, modified asphalt, rosin and paraffin in parts by weight, so that qualified products are obtained.
In the above embodiment, the bentonite and the super absorbent resin are both powders; the bentonite, the super water-absorbent resin and the coating agent are mixed and ground to prepare the self-healing flexible waterproof material meeting water. The super absorbent resin is super absorbent resin.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides a meet flexible waterproof material of water self-healing which characterized in that: the waterproof material raw materials are composed of 60-90% of SBS modified emulsified asphalt and 10-40% of water-swelling self-healing waterproof filler according to the weight ratio, the water-swelling self-healing waterproof filler is composed of an expansion source inner core and a water-insoluble coating embedding the expansion source inner core, and the water-swelling self-healing waterproof filler is prepared from the following raw materials in parts by weight: 100 parts of an expansion source, 1-5 parts of a long-chain alkyl compound and 8-30 parts of a coating agent, wherein the expansion source comprises bentonite and/or super absorbent resin.
2. The water self-healing flexible waterproof material according to claim 1, characterized in that: the waterproof material raw material consists of 70 percent of SBS modified emulsified asphalt and 30 percent of water-swelling self-healing waterproof filler according to the weight ratio.
3. The water self-healing flexible waterproof material according to claim 2, characterized in that: the long-chain alkyl compound is an alkyl compound of C16-C18.
4. The water self-healing flexible waterproof material according to claim 3, characterized in that: the long-chain alkyl compound is one or a mixture of more than two of stearic acid and salt compounds thereof, oleic acid and salt compounds thereof, stearamide, octadecylamine, octadecyl trimethyl ammonium chloride and hexadecyl dimethyl ammonium chloride.
5. The water self-healing flexible waterproof material according to claim 4, characterized in that: the coating agent is one or a mixture of more than two of paraffin, chlorinated paraffin, solid asphalt, modified asphalt, rosin and modified rosin.
6. The water self-healing flexible waterproof material according to claim 5, characterized in that: the bentonite and the super absorbent resin are both powder.
7. The water self-healing flexible waterproof material according to claim 1, characterized in that: the water-swellable self-healing waterproof filler comprises the following raw materials in parts by weight: 100 parts of an expansion source, 3 parts of a long-chain alkyl compound and 20 parts of a coating agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911037645.1A CN110591400A (en) | 2019-10-29 | 2019-10-29 | Flexible waterproof material capable of self-healing in water |
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| CN201911037645.1A CN110591400A (en) | 2019-10-29 | 2019-10-29 | Flexible waterproof material capable of self-healing in water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455764A (en) * | 2020-03-19 | 2020-07-28 | 浙江临金高速公路有限公司 | Tunnel pavement structure capable of preventing water damage and damage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111455764A (en) * | 2020-03-19 | 2020-07-28 | 浙江临金高速公路有限公司 | Tunnel pavement structure capable of preventing water damage and damage |
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