CN113549403A - Waterproof coiled material for isolating radon gas - Google Patents

Waterproof coiled material for isolating radon gas Download PDF

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CN113549403A
CN113549403A CN202110852286.6A CN202110852286A CN113549403A CN 113549403 A CN113549403 A CN 113549403A CN 202110852286 A CN202110852286 A CN 202110852286A CN 113549403 A CN113549403 A CN 113549403A
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radon
rubber
parts
isolating
layer
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郑宪明
苑冰
韩春风
王晨
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Liaoning Dayu Waterproof Technology Development Co ltd
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Liaoning Dayu Waterproof Technology Development Co ltd
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    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
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Abstract

The invention provides a radon-gas-isolating waterproof coiled material, and relates to the technical field of building waterproof engineering. The radon gas-isolating waterproof roll comprises a base layer, wherein the base layer is a polyester felt or a high-strength resin film, the upper surface and the lower surface of the base layer are coated with a modified asphalt glue layer for isolating radon gas base materials, the upper surface of the modified asphalt glue layer is coated with an upper surface layer, and the lower surface of the modified asphalt glue layer is coated with a lower isolating layer. The radon gas-isolating waterproof coiled material is high in strength, high in elongation, good in water impermeability, excellent in thermal stability and lower in water vapor permeability coefficient, high in asphalt content and rubber content in an asphalt sizing material, does not add a regenerated substance, is specially added with a radon radiation-preventing base raw material, is easy to melt when a surface isolation film is baked, forms full adhesion with a base layer after the coiled material is constructed, is excellent in radon gas-isolating property and chlorine ion permeation resistance, and has the product quality with the same service life as a building.

Description

Waterproof coiled material for isolating radon gas
Technical Field
The invention relates to the technical field of building waterproof engineering, in particular to a radon-gas-isolating waterproof coiled material.
Background
Radon is one of 19 main carcinogens published by the world health organization, is second to the second most powerful carcinogen causing human lung cancer in cigarettes, and the main sources of radon in the internal environment of underground engineering are rocks, soil, groundwater and building materials constituting the underground engineering itself. The radon separated out from the surface of the rock and the soil wall outside the underground engineering enclosure structure is diffused and permeated into the inner space through the medium of the engineering enclosure structure, which is the most main source of the radon in the internal environment of the underground engineering, and the engineering application method is a ventilation radon removing method and a radon-proof coating blocking method, wherein the ventilation radon removing method can reduce the existence of the radon to a certain degree, but the method needs ventilation and energy consumption, the radon-proof building coating can block the separation of the radon to a certain degree, the radon-proof effect is obvious, but the service life of the radon-proof coating is short, particularly, the surface layer of the radon-proof coating is easy to be decomposed and fall off in the high-humidity environment of the underground engineering, the radon-proof effect is obviously reduced, and along with the development of the technology, the radon-proof coiled material for isolating the underground engineering can achieve the purposes of water proofing and radon isolating.
However, at present, the conventional manufacturers can add regenerated rubber powder and regenerated waste engine oil when producing glue-making ingredients, so that the purposes of reducing cost and meeting part of indexes of qualification can be achieved, but the common modified asphalt waterproof coiled material produced by the modified asphalt glue stock has low bonding force, poor aging resistance and great discount on waterproof effect, water channeling and water leakage can often occur, the bonding force of lap joint edges after hot melting construction is low, full adhesion cannot be formed due to infirm bonding with a base layer, water channeling is easy to generate, and the modified asphalt waterproof coiled material belongs to a non-sealed waterproof coiled material; and the problems of poor weather resistance, short service life, high leakage rate and the like, and once the leakage is repaired, the radon gas isolation effect cannot be achieved.
Disclosure of Invention
In order to achieve the purpose, the invention is realized by the following technical scheme: the waterproof coiled material for isolating radon comprises a base course layer, wherein the base course layer is a polyester felt or a high-strength resin film, the upper surface and the lower surface of the base course layer are coated with a modified asphalt glue layer for isolating radon base materials, the upper surface of the modified asphalt glue layer is coated with an upper surface layer, and the lower surface of the modified asphalt glue layer is coated with a lower isolation layer.
Preferably, the facing layer or the isolating layer is a PE material film of 0.01-0.02mm, a non-woven fabric of 30-80g/m or mineral aggregates. The high-strength resin film is 0.10mm-0.20mm thick or 200-300g/m polyester felt.
Preferably, the modified asphalt glue layer of the radon gas isolation base material comprises the following components in parts by weight:
40-60 parts of petroleum asphalt,
6 to 13 portions of second-line oil is reduced,
3-5 parts of SBS rubber,
3-6 parts of SBR rubber,
2-4 parts of IIR rubber,
1-3 parts of polyisobutylene rubber,
2-3 parts of hydrogenated petroleum resin,
2-4 parts of PP particles,
5-20 parts of stone powder,
3-10 parts of radon radiation-proof base material.
Preferably, the total rubber content of the SBS rubber, the SBR rubber, the IIR rubber and the polyisobutylene rubber accounts for 15-20% of the total modified asphalt; the radon radiation-proof base raw material is barium sulfate powder with the granularity of more than 200 meshes.
Preferably, the base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
Preferably, the polymer modifier comprises one or more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubber.
A method for preparing a modified asphalt glue layer by radon gas isolation base materials comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
The waterproof coiled material is of a multilayer composite structure, the middle of the waterproof coiled material is a base layer which is a polyester felt or a high-strength resin film, the upper surface and the lower surface of the base layer are coated with modified asphalt glue layers for isolating radon gas base materials, and the upper surface and the lower surface are provided with covering layers or isolating layers. The covering layer or the isolating layer is a PE film with the thickness of 0.01-0.02mm, non-woven fabric or mineral aggregate with the thickness of 30-80g per square meter. The high-strength resin film is 0.10mm-0.20mm thick or 200-300 g/square meter polyester felt. The radon gas-isolating modified asphalt rubber material mainly comprises petroleum asphalt, and SBS rubber, SBR rubber, IIR rubber and polyisobutylene rubber are added to improve the performance of the modified asphalt. The 4 rubbers are uniformly dispersed in the asphalt to form a three-dimensional network structure to play a complementary role, the content of the four components plays an important role in the performance of the modified asphalt sizing material, and the hydrogenated petroleum resin is added to remarkably improve the high-temperature performance, the low-temperature performance and the elasticity of the asphalt and increase the cohesion, the viscosity, the acid and alkali resistance, the weather resistance and the air tightness of the asphalt sizing material of the bonding layer of the coiled material. The high-content rubber is not easy to dissolve in the asphalt, and the high-content rubber plays a full role by adding the dissolving-assisting Wittia oil, so that the performance of the radon-gas-isolating modified asphalt rubber material is improved. The addition of the PP particles improves the thermal stability of the modified asphalt mastic.
The preparation method of the modified asphalt glue layer of the radon-gas-isolating waterproof coiled material comprises the steps of firstly cutting IIR rubber and polyisobutylene rubber into pieces with the diameter of 1cm by a crusher in advance, softening the pieces at 190 ℃ by using second-line reducing oil, and then uniformly dispersing the pieces into asphalt by using a colloid mill, so that the compatibility of the rubber is improved, and the problems of solubility and uniformity in the process of processing high-content rubber modified asphalt are solved.
The invention provides a radon-isolating waterproof coiled material. The method has the following beneficial effects:
1. this keep apart waterproofing membrane of radon gas, tensile strength is big, the gas tightness is good, makes it have the overlength extensibility of the high strength of SBS coiled material and polyethylene child concurrently: the tensile force of the coiled material is more than or equal to 800N/5cm, the maximum tensile force value of the national standard index of the SBS coiled material is reached, and the tensile force value is 4 times that of the original polyethylene tire coiled material: the radon-gas-isolating waterproof coiled material prepared by the method has double water pressure permeation resistance, the water impermeability of the coiled material is more than 0.6MPa, and is more than 2 times of that of the traditional waterproof coiled material, and the water pressure permeation resistance of a common double-layer coiled material can be achieved by one layer of waterproof, so that the radon-gas isolation purpose is achieved.
2. The radon-gas-isolating waterproof coiled material has the product quality same as that of a building, no regenerated substance is added in a colloid formula, the product quality is greatly improved, the service life of the radon-gas-isolating waterproof coiled material is 2-3 times that of the traditional asphalt waterproof coiled material, and the service life of underground engineering can be the same as that of the building.
3. The radon-gas-isolating waterproof coiled material has excellent radon-gas-isolating property and excellent chlorine ion permeation resistance, and the content of SBS rubber, SBR rubber, IIR rubber, polyisobutylene rubber and hydrogenated petroleum resin accounts for 15-20% of the total amount. The addition of the regenerated substance is zero, so that the colloid of the coiled material is fine and compact, and the high-strength resin matrix can greatly block radon gas, so that the excellent radon gas blocking performance and chlorine ion permeation resistance of the product are achieved. The physical and chemical indexes of the product are not affected even if the product is soaked in a saturated saline solution, a 10% alkali solution or a 20% acid solution for a long time.
4. This keep apart waterproofing membrane of radon gas, the thermal dimension changes stably, and this product child base adopts high strength resin, and thermal dimension stability actual measurement average value is less than or equal to 1%, and its performance is superior to more than 5 times of traditional polyethylene child coiled material, has overcome the defect that traditional coiled material thermal dimension stability is poor, has avoided the waterproof layer because of the serious fold that temperature variation produced and has bulged, stick up the limit phenomenon, has guaranteed water-proof effects.
5. The radon gas-isolating waterproof coiled material is safe and reliable in construction waterproof performance. The hot-melting welding quality of the waterproof lap edges of the coiled materials is a waterproof safety barrier which is the first waterproof layer of the coiled materials, the lap edge peeling strength of the waterproof coiled materials for isolating radon gas can be up to 3.0N/mm, the peel strength of the waterproof coiled materials is more than 2-3 times of that of the existing common asphalt-based coiled materials, and the waterproof lap edges of the coiled materials are safer and more reliable.
Drawings
Fig. 1 is a sectional view of a structural waterproofing membrane of the present invention.
In the figure: 1. a base layer; 2. a modified asphalt glue layer; 3. covering a surface layer; 4. and a lower isolation layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the radon-gas-isolating waterproof roll material is as follows:
the first embodiment is as follows:
referring to fig. 1, a radon gas-isolating waterproof roll comprises a base layer 1, wherein the base layer 1 is a polyester felt or a high-strength resin film, the upper and lower surfaces of the base layer 1 are coated with a modified asphalt glue layer 2 based on radon gas isolation, the upper surface of the modified asphalt glue layer 2 is coated with an upper surface layer 3, and the lower surface of the modified asphalt glue layer 2 is coated with a lower isolation layer 4, wherein the upper surface layer or isolation layer is a PE film of 0.01-0.02mm, a non-woven fabric of 30-80g/m or a mineral aggregate. The high-strength resin film is 0.10mm-0.20mm thick or 200-300g/m polyester felt.
The modified asphalt glue layer 2 for isolating radon gas base materials comprises the following components in parts by weight:
52 parts of petroleum asphalt, namely 52 parts of petroleum asphalt,
reducing the weight of the two-line oil by 13 parts,
3 parts of SBS rubber, namely 3 parts of SBS rubber,
6 parts of SBR rubber, namely 6 parts of SBR rubber,
4 parts of IIR rubber, namely 4 parts of IIR rubber,
3 parts of polyisobutylene rubber, namely 3 parts of polyisobutylene rubber,
3 parts of hydrogenated petroleum resin, namely, hydrogenated petroleum resin,
4 parts of PP particles, namely 4 parts of PP particles,
16 parts of stone powder, namely stone powder,
3 parts of radon radiation-proof base material.
Wherein the total rubber content of SBS rubber, SBR rubber, IIR rubber, polyisobutylene rubber and hydrogenated petroleum resin accounts for 15% of the total modified asphalt, and the particle size of the stone powder is 325 meshes.
The base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
The polymer modifier comprises one or more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubber.
A method for preparing a modified asphalt glue layer by radon gas isolation base materials comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
Example two:
referring to fig. 1, a radon gas-isolating waterproof roll comprises a base layer 1, wherein the base layer 1 is a polyester felt or a high-strength resin film, the upper and lower surfaces of the base layer 1 are coated with a modified asphalt glue layer 2 based on radon gas isolation, the upper surface of the modified asphalt glue layer 2 is coated with an upper surface layer 3, and the lower surface of the modified asphalt glue layer 2 is coated with a lower isolation layer 4, wherein the upper surface layer or isolation layer is a PE film of 0.01-0.02mm, a non-woven fabric of 30-80g/m or a mineral aggregate. The high-strength resin film is 0.10mm-0.20mm thick or 200-300g/m polyester felt.
The modified asphalt glue layer 2 for isolating radon gas base materials comprises the following components in parts by weight:
59 parts of petroleum asphalt, namely 59 parts of petroleum asphalt,
reducing the weight of the two-line oil by 7 parts,
5 parts of SBS rubber, namely 5 parts of SBS rubber,
5 parts of SBR rubber, namely 5 parts of SBR rubber,
3 parts of IIR rubber, namely 3 parts of,
3 parts of polyisobutylene rubber, namely 3 parts of polyisobutylene rubber,
2 parts of hydrogenated petroleum resin, namely, hydrogenated petroleum resin,
4 parts of PP particles, namely 4 parts of PP particles,
5 parts of stone powder,
7 parts of radon radiation-proof base material.
Wherein the total rubber content of SBS rubber, SBR rubber, IIR rubber, polyisobutylene rubber and hydrogenated petroleum resin accounts for 16% of the total modified asphalt, and the particle size of the stone powder is 325 meshes.
The base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
The polymer modifier comprises one or more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubber.
A method for preparing a modified asphalt glue layer by radon gas isolation base materials comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
Example three:
referring to fig. 1, a radon gas-isolating waterproof roll comprises a base layer 1, wherein the base layer 1 is a polyester felt or a high-strength resin film, the upper and lower surfaces of the base layer 1 are coated with a modified asphalt glue layer 2 based on radon gas isolation, the upper surface of the modified asphalt glue layer 2 is coated with an upper surface layer 3, and the lower surface of the modified asphalt glue layer 2 is coated with a lower isolation layer 4, wherein the upper surface layer or isolation layer is a PE film of 0.01-0.02mm, a non-woven fabric of 30-80g/m or a mineral aggregate. The high-strength resin film is 0.10mm-0.20mm thick or 200-300g/m polyester felt.
The modified asphalt glue layer 2 for isolating radon gas base materials comprises the following components in parts by weight:
54 parts of petroleum asphalt, namely 54 parts of petroleum asphalt,
reducing the weight of the two-line oil by 10 parts,
5 parts of SBS rubber, namely 5 parts of SBS rubber,
6 parts of SBR rubber, namely 6 parts of SBR rubber,
3 parts of IIR rubber, namely 3 parts of,
3 parts of polyisobutylene rubber, namely 3 parts of polyisobutylene rubber,
2 parts of hydrogenated petroleum resin, namely, hydrogenated petroleum resin,
2 parts of PP particles, namely 2 parts of PP particles,
8 parts of stone powder, namely stone powder,
7 parts of radon radiation-proof base material.
Wherein the total rubber content of SBS rubber, SBR rubber, IIR rubber, polyisobutylene rubber and hydrogenated petroleum resin is 17% of the total modified asphalt, and the particle size of stone powder is 325 mesh.
The base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
The polymer modifier comprises one or more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubber.
A method for preparing a modified asphalt glue layer by radon gas isolation base materials comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
Example four:
referring to fig. 1, a radon gas-isolating waterproof roll comprises a base layer 1, wherein the base layer 1 is a polyester felt or a high-strength resin film, the upper and lower surfaces of the base layer 1 are coated with a modified asphalt glue layer 2 based on radon gas isolation, the upper surface of the modified asphalt glue layer 2 is coated with an upper surface layer 3, and the lower surface of the modified asphalt glue layer 2 is coated with a lower isolation layer 4, wherein the upper surface layer or isolation layer is a PE film of 0.01-0.02mm, a non-woven fabric of 30-80g/m or a mineral aggregate. The high-strength resin film is 0.10mm-0.20mm thick or 200-300g/m polyester felt.
The modified asphalt glue layer 2 for isolating radon gas base materials comprises the following components in parts by weight:
52 parts of petroleum asphalt, namely 52 parts of petroleum asphalt,
reducing the weight of the second line oil by 12 parts,
5 parts of SBS rubber, namely 5 parts of SBS rubber,
5 parts of SBR rubber, namely 5 parts of SBR rubber,
3 parts of IIR rubber, namely 3 parts of,
3 parts of polyisobutylene rubber, namely 3 parts of polyisobutylene rubber,
2 parts of hydrogenated petroleum resin, namely, hydrogenated petroleum resin,
4 parts of PP particles, namely 4 parts of PP particles,
7 parts of stone powder,
7 parts of radon radiation-proof base material.
Wherein the total rubber content of SBS rubber, SBR rubber, IIR rubber, polyisobutylene rubber and hydrogenated petroleum resin accounts for 16% of the total modified asphalt, and the particle size of the stone powder is 325 meshes.
The base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
The polymer modifier comprises one or more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubber.
A method for preparing a modified asphalt glue layer by radon gas isolation base materials comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
Example five:
referring to fig. 1, a radon gas-isolating waterproof roll comprises a base layer 1, wherein the base layer 1 is a polyester felt or a high-strength resin film, the upper and lower surfaces of the base layer 1 are coated with a modified asphalt glue layer 2 based on radon gas isolation, the upper surface of the modified asphalt glue layer 2 is coated with an upper surface layer 3, and the lower surface of the modified asphalt glue layer 2 is coated with a lower isolation layer 4, wherein the upper surface layer or isolation layer is a PE film of 0.01-0.02mm, a non-woven fabric of 30-80g/m or a mineral aggregate. The high-strength resin film is 0.10mm-0.20mm thick or 200-300g/m polyester felt.
The modified asphalt glue layer 2 for isolating radon gas base materials comprises the following components in parts by weight:
55 parts of petroleum asphalt, namely 55 parts of petroleum asphalt,
9 parts of second-line oil is reduced,
4 parts of SBS rubber, namely 4 parts of SBS rubber,
5 parts of SBR rubber, namely 5 parts of SBR rubber,
3 parts of IIR rubber, namely 3 parts of,
3 parts of polyisobutylene rubber, namely 3 parts of polyisobutylene rubber,
3 parts of hydrogenated petroleum resin, namely, hydrogenated petroleum resin,
2 parts of PP particles, namely 2 parts of PP particles,
6 parts of stone powder, namely 6 parts of stone powder,
10 parts of radon radiation-proof base material.
Wherein the total rubber content of SBS rubber, SBR rubber, IIR rubber, polyisobutylene rubber and hydrogenated petroleum resin is 18% of the total modified asphalt, and the particle size of stone powder is 325 mesh.
The base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
The polymer modifier comprises one or more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubber.
A method for preparing a modified asphalt glue layer by radon gas isolation base materials comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
The modified asphalt mastics prepared in examples 1 to 5 were mixed at a temperature in summer of: 160 ℃ and 170 ℃, temperature in winter: the composite structure used at 170-180 ℃ comprises the following components in sequence from top to bottom: the middle of the base layer is a base layer made of polyester felt or high-strength resin film, the upper and lower surfaces of the base layer are coated with modified asphalt glue stock for isolating radon gas base stock, and the upper and lower surfaces are provided with covering layers or isolating layers. The prepared small samples of the coiled material are tested according to the standard, and the test results are listed in table 1:
TABLE 1 test results of samples of high-molecular polymer modified asphalt waterproof coiled materials
Example 1 Example 2 Example 3 Example 4 Example 5
Adhesive strength, N/mm 3.30 3.21 3.62 3.41 3.22
Tensile force, N/50mm 851 8460 881 869 855
Elongation at break,% 198 186 211 181 225
Water impermeability MPa.120min 0.8 0.8 0.8 0.8 0.8
Thermal dimensional stability% 0.19 0.25 0.31 0.20 0.24
Water vapor permeability coefficient g.cm/(c square meter, s.Pa) 0.91×10-13 0.88×10-13 0.81×10-13 0.96×10-13 0.93×10-13
As can be seen from table 1, the example 3 coil described in this application has better tensile, elongation at break, bond strength and lower water vapor permeability coefficient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an keep apart waterproofing membrane of radon gas, includes child basic unit (1), its characterized in that: the tire base layer (1) is a polyester felt or a high-strength resin film, the upper surface and the lower surface of the tire base layer (1) are coated with a modified asphalt glue layer (2) for isolating radon gas base materials, the upper surface of the modified asphalt glue layer (2) is coated with an upper surface layer (3), and the lower surface of the modified asphalt glue layer (2) is coated with a lower isolating layer (4).
2. The radon-gas-isolating waterproof roll as claimed in claim 1, wherein said base layer is a high-strength resin film having a thickness of 0.10mm-0.20mm or a polyester felt of 200 g/m.
3. The covering layer or the isolating layer is a PE (polyethylene) film of 0.01-0.02mm and non-woven fabrics or mineral aggregates of 30-80 g/m.
4. The radon-gas-isolating waterproof roll as claimed in claim 1, wherein: the modified asphalt glue layer (2) for isolating radon gas base materials comprises the following components in parts by weight:
40-60 parts of petroleum asphalt,
6 to 13 portions of second-line oil is reduced,
3-5 parts of SBS rubber,
3-6 parts of SBR rubber,
2-4 parts of IIR rubber,
1-3 parts of polyisobutylene rubber,
2-3 parts of hydrogenated petroleum resin,
2-4 parts of PP particles,
5-20 parts of stone powder,
3-10 parts of radon radiation-proof base material.
5. The radon-gas-isolating waterproof roll as claimed in claim 1, wherein: the total rubber content of the SBS rubber, the SBR rubber, the IIR rubber and the polyisobutylene rubber accounts for 11-20% of the total amount of the modified asphalt; the radon radiation-proof base raw material is barium sulfate powder with the granularity of more than 200 meshes.
6. The radon-gas-isolating waterproof roll as claimed in claim 1, wherein: the base asphalt comprises a mixture of one or more of natural asphalt and petroleum asphalt.
7. The radon-gas-isolating waterproof roll as claimed in claim 1, wherein: the polymer modifier comprises one or a mixture of more of SBS thermoplastic rubber elastomer, SBR styrene-butadiene rubber, IIR butyl rubber, polyisobutylene rubber, hydrogenated petroleum resin and other hot melt modified rubbers.
8. The method for preparing the modified asphalt glue layer based on radon gas isolation as claimed in claim 3, which comprises the following steps:
s1, opening a heat-conducting oil valve of the reaction kettle, adding petroleum asphalt and reducing two-line oil, and stirring at a low speed of 80-110 revolutions per minute;
s2, increasing the temperature to 160-;
s3, adding PP particles into the mixture 1, slowly adding the PP particles at the speed of 120-;
s4, adding stone powder and radon radiation-proof base raw materials into the mixture 2, slowly adding the stone powder and the radon radiation-proof base raw materials at the speed of 120-: 160 ℃ and 170 ℃, temperature in winter: 170 ℃ and 180 ℃.
CN202110852286.6A 2021-07-27 2021-07-27 Waterproof coiled material for isolating radon gas Pending CN113549403A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008115A1 (en) * 2014-07-16 2016-01-21 Honeywell International Inc. Asphalt coatings for roofing waterproof membranes, waterproof membranes including the asphalt coatings and methods for making the asphalt coatings
CN107177207A (en) * 2016-03-09 2017-09-19 广西金雨伞防水装饰有限公司 A kind of anti-radon waterproof roll and preparation method thereof
CN111635710A (en) * 2020-05-26 2020-09-08 甘肃大禹防水科技发展有限公司 Double-base waterproof coiled material and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008115A1 (en) * 2014-07-16 2016-01-21 Honeywell International Inc. Asphalt coatings for roofing waterproof membranes, waterproof membranes including the asphalt coatings and methods for making the asphalt coatings
CN107177207A (en) * 2016-03-09 2017-09-19 广西金雨伞防水装饰有限公司 A kind of anti-radon waterproof roll and preparation method thereof
CN111635710A (en) * 2020-05-26 2020-09-08 甘肃大禹防水科技发展有限公司 Double-base waterproof coiled material and preparation method thereof

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Application publication date: 20211026