CN113652183B

CN113652183B - Asphalt-based interfacial agent and preparation method thereof

Info

Publication number: CN113652183B
Application number: CN202111085227.7A
Authority: CN
Inventors: 王磊; 吴磊扬; 王善军; 齐明远; 刘昊; 王越; 刘磊
Original assignee: Kainuo Construction Co ltd
Current assignee: Kainuo Construction Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-11-01
Anticipated expiration: 2041-09-16
Also published as: CN113652183A

Abstract

An asphalt-based interfacial agent and a preparation method thereof, comprising the following raw materials by mass: emulsion: 320-450 parts; mildew preventive: 0.5 to 1; and (3) bactericide: 0.8-1.2; thickening agent: 0.2 to 1; deionized water: 550-650 parts of; and (3) graphite oxide: 20-30 parts; main defoaming agent: 1.2-1.8; emulsified asphalt extract: 50-70 parts. This application adopts emulsion and emulsified asphalt extract as resin class cross-linking material, not only can play better cross-linking effect, also has certain infiltration type, consequently has lasting connection ability, avoids taking place mashed root phenomenon in the use, improves the structural effect that the interfacial agent used can reach greatly, avoids economic loss and potential safety hazard.

Description

Asphalt-based interface agent and preparation method thereof

Technical Field

The application relates to an asphalt-based interfacial agent and a preparation method thereof.

Background

The heat insulating material is generally arranged on the outer side of the waterproof roll, and if the waterproof roll layer is smooth, namely, no protective layer is arranged, an interface agent layer is generally required to be arranged, and then the waterproof roll layer is connected with the heat insulating material on the outer side. However, when the two sides of the interior of the existing interface agent are connected, the firmness of the connection is poor, the use requirement cannot be met, the interface agent is mainly absorbed in the use requirement within specific detection time, and the interface agent can achieve the use effect for a long time or not and has less attention, so that the phenomena of root rot such as stripping, cracking, falling and the like of the heat-insulating layer on the outer side of the waterproof coiled material part of a roof parapet and the like are caused, certain economic loss is caused, and great potential safety hazards are caused.

Disclosure of Invention

In order to solve the problems, the application provides an asphalt-based interfacial agent on one hand, which comprises the following raw materials in parts by mass: emulsion: 320-450 parts; mildew preventive: 0.5 to 1; and (3) bactericide: 0.8-1.2; thickening agent: 0.2 to 1; deionized water: 550-650 parts; and (3) graphite oxide: 20-30 parts of a solvent; main defoaming agent: 1.2-1.8 parts; emulsified asphalt extract: 50-70 parts. This application adopts emulsion and emulsified asphalt extract as resin class cross-linking material, not only can play better cross-linking effect, also has certain infiltration type, consequently has lasting connecting power, avoids taking place mashed root phenomenon in the use, improves the structural effect that the interfacial agent used can reach greatly, avoids economic loss and potential safety hazard.

Preferably, the emulsion is a styrene-acrylic emulsion or a pure acrylic emulsion or a VAE emulsion.

Preferably, the emulsified asphalt extract is obtained by extracting high-temperature asphalt by using carbon disulfide.

Preferably, the emulsified asphalt extract is prepared by the following method: placing high-temperature asphalt in CS₂In (C, C)₂The mass ratio of the asphalt to the high-temperature asphalt is 3-5:1, stirring and extracting for 2-3h, centrifuging to obtain extract, and spin-steaming to remove most of CS₂Pouring into evaporating dish under the condition of fluidity, then placing into vacuum drying oven, drying at 160-170 deg.C for 12-16 hr to obtain asphalt extract, and emulsifying the asphalt extract to obtain emulsified asphalt extract. The emulsified asphalt extract is substantially optimized for asphalt, and CS is firstly utilized₂Extracting to ensure that high molecular substances in the asphalt can be obtained, and then drying for a long time at 110-120 ℃, so that light components can be partially removed, and substances in the asphalt can be crosslinked to a certain degree, so that the molecular weight of the components in the asphalt can be obviously shifted to a large molecular weight, and the emulsified asphalt extract can achieve better connection and stable performance.

Preferably, the emulsification treatment is performed as follows: in an emulsifying device, heating the asphalt extract to 140-150 ℃, adding an emulsifying agent and an auxiliary defoaming agent, and carrying out high-speed shearing to obtain an emulsified high-molecular substance.

Preferably, the emulsification treatment is performed as follows: the emulsifier is soap liquid, the temperature of the soap liquid is 60-70 ℃, the mass ratio of the emulsifier in the asphalt extract is 40-50wt%, and the mass ratio of the auxiliary antifoaming agent in the emulsifier is 0.3-0.5wt%.

Preferably, the main defoaming agent is an esterified polyether defoaming agent, and the auxiliary defoaming agent is dimethyl silicone oil.

On the other hand, the application also discloses a using method of the asphalt-based interfacial agent, which comprises the following steps: and brushing an asphalt-based interface agent on the surface of the waterproof coiled material, and then attaching the outer wall thermal insulation material to the asphalt-based interface agent.

Preferably, the waterproof coiled material is an asphalt waterproof coiled material.

Preferably, the waterproof coiled material is arranged on the outer side of the main building structure, and the lap joint length between the asphalt-based interfacial agent and the main building structure is not less than 100mm. The waterproof coiled material that this application adopted is pitch class coiled material also, this further improvement interfacial agent and the bonding ability between it, then utilize interfacial agent extension to lay, form a protective layer in essence, avoid waterproof coiled material edge to intake the emergence of the condition such as the water.

This application can bring following beneficial effect:

1. the emulsion and the emulsified asphalt extract are used as resin crosslinking substances, so that the resin crosslinking agent not only can play a better crosslinking role, but also has a certain penetration type, so that the resin crosslinking agent has lasting connection capacity, avoids root rot during the use process, greatly improves the structural effect which can be achieved by using the interface agent, and avoids economic loss and potential safety hazard;

2. the emulsified asphalt extract is substantially optimized for asphalt, and CS is firstly utilized₂Extracting to obtain high molecular substances, drying at 110-120 deg.C for a long time to partially remove light substancesThe component can also cross-link substances in the asphalt to a certain degree, so that the molecular weight of the component in the asphalt is obviously shifted to a large molecular weight, and the emulsified asphalt extract achieves better connection and stable performance;

3. the waterproof coiled material that this application adopted also is pitch class coiled material, this further improvement the binding capacity between interfacial agent and it, then utilize interfacial agent to extend and lay, form a protective layer in essence, avoid waterproof coiled material edge to intake the emergence of the circumstances such as water.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present application will be explained in detail through the following embodiments.

The present application illustrates a specific embodiment of the application by way of example of synthesis and characterization, with the following specific steps:

s1, preparing an asphalt extract:

placing high-temperature asphalt in CS₂Middle, CS₂The mass ratio of the asphalt to the high-temperature asphalt is 3-5:1, stirring and extracting for 2-3h, centrifuging to obtain extract, and spin-steaming to remove most of CS₂Pouring the mixture into an evaporating dish under the condition of fluidity, then putting the evaporating dish into a vacuum drying oven, drying the evaporating dish for 12 to 16 hours under the condition of 160 to 170 ℃ to obtain an asphalt extract, and then emulsifying the asphalt extract to obtain an emulsified asphalt extract;

s2, preparing an emulsified asphalt extract:

in an emulsifying device, heating the asphalt extract to 140-150 deg.C, adding emulsifier and auxiliary defoaming agent, and high-speed shearing to obtain emulsified high-molecular substance. The emulsification treatment is carried out according to the following modes: the emulsifier is soap liquid, the temperature of the soap liquid is 60-70 ℃, the mass ratio of the emulsifier in the asphalt extract is 40-50wt%, and the mass ratio of the auxiliary antifoaming agent in the emulsifier is 0.3-0.5wt%. The auxiliary defoaming agent is dimethyl silicone oil. As shown in table 1:

table 1:

s3, preparing an interface agent:

the material is prepared by mixing the following raw materials and then stirring at a high speed for 8 hours: emulsion, mildew preventive, bactericide, thickener, deionized water, graphite oxide, main defoaming agent and emulsified asphalt extract. The emulsion is styrene-acrylic emulsion or pure acrylic emulsion or VAE emulsion. The main defoaming agent is an esterified polyether defoaming agent. As shown in table 2:

table 2:

s4, coating an interface agent on the surface of the asphalt waterproof coiled material, then adhering a GPES insulation board, and testing the tensile strength of the asphalt waterproof coiled material after 28 days according to GB/T30595-2014. As shown in table 3:

table 3:

numbering	Breaking Strength (MPa)	Location of destruction
			1	0.72	Thermal insulation material
2	0.71	Thermal insulation material
			3	0.72	Thermal insulation material
4	0.22	Interfacial agent layer
			5	0.24	Interfacial agent layer
6	0.35	Interfacial agent layer
			7	0.26	Interfacial agent layer

Certainly, the use scene of the interfacial agent that this application obtained is more, if when carrying out waterproofing membrane and insulation material's complex, this application just can play better connection effect, and all has better infiltration type to waterproofing membrane and insulation material, and the material that finally obtains is not inferior to a system material, and specific use is as follows: the method comprises the following steps: and brushing an asphalt-based interface agent on the surface of the waterproof coiled material, and then attaching the outer wall thermal insulation material to the asphalt-based interface agent. The waterproof coiled material is an asphalt waterproof coiled material. Waterproofing membrane sets up in the outside of building major structure, the overlap joint length between pitch-based interfacial agent and the building major structure is no less than 100mm.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An asphalt-based interfacial agent, which is characterized in that: the feed comprises the following raw materials in parts by mass: emulsion: 320-450 parts; mildew preventive: 0.5 to 1; and (3) bactericide: 0.8-1.2 parts; thickening agent: 0.2 to 1; deionized water: 550-650 parts; and (3) graphite oxide: 20-30 parts of a solvent; main defoaming agent: 1.2-1.8 parts; emulsified asphalt extract: 50-70 parts;

the emulsified asphalt extract is obtained by extracting high-temperature asphalt by using carbon disulfide; the emulsified asphalt extract is prepared by the following method: placing high-temperature asphalt in CS₂Middle, CS₂The mass ratio of the asphalt to the high-temperature asphalt is 3-5:1, stirring and extracting for 2-3h, centrifuging to obtain extract, and rotary distilling to remove most of CS₂Pouring into an evaporating dish under the condition of fluidity, then placing into a vacuum drying oven, drying at 160-170 deg.C for 12-16h to obtain asphalt extract, and emulsifying the asphalt extract to obtain emulsified asphalt extract;

the emulsification treatment is carried out as follows: heating the asphalt extract to 140-150 ℃ in an emulsifying device, adding an emulsifying agent and an auxiliary defoaming agent, and carrying out high-speed shearing to obtain an emulsified high-molecular substance; the emulsifier is soap liquid, the temperature of the soap liquid is 60-70 ℃, the mass ratio of the emulsifier in the asphalt extract is 40-50wt%, and the mass ratio of the auxiliary antifoaming agent in the emulsifier is 0.3-0.5wt%.

2. The asphalt-based interfacial agent according to claim 1, wherein: the emulsion is styrene-acrylic emulsion or pure acrylic emulsion or VAE emulsion.

3. The asphalt-based interfacial agent according to claim 1, wherein: the main defoaming agent is an esterified polyether defoaming agent, and the auxiliary defoaming agent is dimethyl silicone oil.

4. A method of using the asphalt-based interfacial agent according to claim 1, wherein: the method comprises the following steps: and brushing an asphalt-based interface agent on the surface of the waterproof coiled material, and then attaching the outer wall thermal insulation material to the asphalt-based interface agent.

5. The use method of the asphalt-based interfacial agent according to claim 4, wherein: the waterproof coiled material is an asphalt waterproof coiled material.

6. The use method of the asphalt-based interfacial agent according to claim 5, wherein: waterproofing membrane sets up in the outside of building major structure, the overlap joint length between pitch-based interfacial agent and the building major structure is no less than 100mm.