CN115678149B - High-molecular waterproof coiled material and production method and application thereof - Google Patents
High-molecular waterproof coiled material and production method and application thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of waterproof materials, and particularly relates to a high-molecular waterproof coiled material, and a production method and application thereof. The raw materials of the high-molecular waterproof coiled material comprise 30-50 parts of high-density polyethylene, 30-50 parts of linear low-density polyethylene, 26-38 parts of ethylene propylene diene monomer, 19-29 parts of butyl rubber, 19-29 parts of polyvinyl acetate, 13-19 parts of a filling agent, 6-10 parts of melamine salt, 3~5 parts of an antioxidant and 3~5 parts of a crosslinking agent. The high-polymer waterproof coiled material has excellent tensile deformation performance, puncture resistance and impact resistance, can reduce damage caused by tunnel construction, reduces the risk of water leakage, and is suitable for serving as a tunnel lining waterproof material.
Description
Technical Field
The invention belongs to the technical field of waterproof materials, and particularly relates to a high-molecular waterproof coiled material, and a production method and application thereof.
Background
In tunnel engineering, in order to ensure stability, safety and beauty in operation and use, secondary lining is generally adopted, and a circumferential drainage blind ditch (pipe) and a waterproof layer are arranged between primary support and the secondary lining so as to ensure that the tunnel is not leaked. The waterproof coiled material is a common material for laying a waterproof layer, and easily faces the following problems in the waterproof construction process of tunnel lining: on one hand, as the tunnel construction can not ensure the flatness of the base surface paved by the waterproof layer, when the surface of the primary support is concave-convex obviously, the waterproof coiled material is likely to be broken by the tension force exerted on the waterproof coiled material due to the extrusion effect generated by the secondary lining, and after the secondary lining of the tunnel is completed, the primary support can shrink and extrude the waterproof coiled material to generate the stretching effect along with the stress adjustment caused by the changes of creep pressure, expansive compression and the like of weak surrounding rock; on the other hand, a large number of sharp anchor rod heads which are missed during anchor spraying support exist on the concrete surface of the primary support, and the waterproof coiled material is easy to puncture. The above problems all cause damage to the waterproof roll and cause a risk of water leakage. Therefore, the waterproof coiled material used between the primary support and the secondary lining needs to have good tensile deformation performance and puncture resistance and impact resistance so as to reduce the damage to the waterproof coiled material in the tunnel construction process. However, most of the existing high polymer waterproof coiled materials are made of polyethylene materials, so that the yield elongation is low, the puncture resistance and the impact resistance are poor, and the water leakage risk caused by the problems is difficult to effectively prevent.
Disclosure of Invention
Aiming at the technical problems, the invention provides a high-molecular waterproof coiled material and a production method and application thereof. The high-polymer waterproof coiled material provided by the invention has good tensile deformation performance, puncture resistance and impact resistance, can reduce damage caused by tunnel construction, and reduces the risk of water leakage.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-molecular waterproof coiled material which is prepared from the following raw materials in parts by mass:
30 to 50 parts of high-density polyethylene;
30 to 50 parts of linear low-density polyethylene;
26 to 38 portions of ethylene propylene diene monomer;
19-29 parts of butyl rubber;
19-29 parts of polyvinyl acetate;
13-19 parts of a filler;
6 to 10 parts of melamine salt;
4736 parts of an antioxidant 3~5;
5363 portions of cross-linking agent 3~5.
According to the invention, the high-density polyethylene and the linear low-density polyethylene are used in a matching manner according to the proportion, so that the toughness and the strength of the obtained waterproof coiled material are improved.
Ethylene propylene diene monomer has good ageing resistance and chemical resistance, but the processability is poor. According to the invention, through the matching of the high-density polyethylene, the butyl rubber and the ethylene propylene diene monomer, the processability and the constructability of the waterproof coiled material are improved.
The polyvinyl acetate, melamine salt and the cross-linking agent are used, so that the connection performance of the high-density polyethylene, the linear low-density polyethylene, the ethylene propylene diene monomer and the butyl rubber is improved, and the compactness, tensile resistance and tear resistance of the obtained high-molecular waterproof roll are further improved.
The filler can reduce the processing viscosity in the production process, is beneficial to smooth processing, and simultaneously improves the mechanical property and puncture strength of the obtained high-molecular waterproof coiled material.
Experiments prove that the high-polymer waterproof coiled material has excellent tensile deformation performance, puncture resistance and impact resistance through the matching of the components, can reduce the damage caused by tunnel construction, and reduces the risk of water leakage.
Preferably, the polymer waterproof roll is prepared from the following raw materials in parts by mass:
35 to 45 portions of high-density polyethylene;
35 to 45 portions of linear low-density polyethylene;
29-35 parts of ethylene propylene diene monomer;
22-26 parts of butyl rubber;
22-26 parts of polyvinyl acetate;
15-17 parts of a filler;
melamine salt 7~9 parts;
3.5 to 4.5 portions of antioxidant;
3.5 to 4.5 portions of cross-linking agent.
Further preferably, the polymer waterproof roll is prepared from the following raw materials in parts by mass:
40 parts of high-density polyethylene;
40 parts of linear low-density polyethylene;
32 parts of ethylene propylene diene monomer;
24 parts of butyl rubber;
24 parts of polyvinyl acetate;
16 parts of a filling agent;
8 parts of melamine salt;
4 parts of an antioxidant;
4 parts of a crosslinking agent.
With reference to the first aspect, the high density polyethylene has a melt index of 0.3 to 1.0g/10min, and the linear low density polyethylene has a melt index of 1.5 to 2.5g/10min.
With reference to the first aspect, the melt index of the ethylene propylene diene monomer is 70 to 90g/10min.
With reference to the first aspect, the filler is selected from at least one of white carbon black, nano montmorillonite, mica sheet, kaolin, talcum powder, modified talcum powder, titanium dioxide and calcium carbonate, and the particle size is 100 to 400 meshes.
Preferably, the filler is modified talcum powder, and the preparation method of the modified talcum powder comprises the following steps: mixing talcum powder and an oxalic acid aqueous solution for 20 to 40min according to a mass ratio of 1 to 4 to 5, drying, and adding vinyl tri (beta-methoxyethoxy) silane and sodium distearoyl tartrate diester, wherein the total mass of the vinyl tri (beta-methoxyethoxy) silane and the sodium distearoyl tartrate diester is 0.03 to 0.07 time of the mass of the talcum powder, and the mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the sodium distearoyl tartrate diester is 2 to 3.
Preferably, the mass percentage concentration of the oxalic acid aqueous solution is 20-40%.
In combination with the first aspect, the melamine salt is melamine hydrochloride, melamine sulfate, melamine nitrate, melamine oxalate or melamine acetate.
In combination with the first aspect, the cross-linking agent is selected from dicumyl peroxide, styrene, acrylonitrile or glyoxal.
Preferably, the crosslinking agent is dicumyl peroxide.
In combination with the first aspect, the antioxidant is selected from at least one of pentaerythrityl tetrakis [ beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate ], tris (2,4-di-tert-butylphenyl) phosphite, 2,2' -methylenebis (4,6-di-tert-butylphenol), 2,6-di-tert-butyl-p-cresol, N-phenyl-N-isopropyl-p-phenylenediamine, octadecanol beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, diisooctyl-p-phenylenediamine.
With reference to the first aspect, the raw material of the waterproof polymer roll further includes a grid framework material, such as a glass fiber grid cloth.
The second aspect of the present invention provides a method for producing the above-mentioned polymer waterproof roll, which specifically includes the following operations:
mixing the ethylene propylene diene monomer, the butyl rubber and the filler, extruding for the first time, and granulating to obtain a first premix;
mixing the first premix with the high-density polyethylene and the linear low-density polyethylene, and performing secondary extrusion and granulation to obtain a second premix;
and mixing the second premix with other raw materials, extruding, and carrying out calendaring molding to obtain the polymer waterproof roll.
In combination with the second aspect, the temperature of the first extrusion is preferably 180 to 240 ℃, and the extrusion rate is preferably 1.5 to 2.5m/min.
In combination with the second aspect, the temperature of the second extrusion is preferably 160 to 200 ℃, and the extrusion rate is preferably 2 to 5m/min.
The third aspect of the present invention provides another method for preparing a polymer waterproof roll, which specifically comprises the following operations:
arranging the glass fiber mesh in an acetone solution containing polylactic acid and polyvinyl acetate at the temperature of 30-45 ℃ for 1-2h, taking out and drying to obtain glass fiber mesh cloth for the first time;
immersing the glass fiber mesh cloth subjected to primary treatment into a cyclohexane solution containing the ethylene propylene diene monomer and the butyl rubber for 1 to 2h, taking out and drying to obtain the glass fiber mesh cloth subjected to secondary treatment;
and mixing and melting the rest raw materials, coating the mixture on the secondary-treated glass fiber gridding cloth, and drying and curing to obtain the macromolecular waterproof roll.
The high-molecular waterproof coiled material prepared by the preparation method combines the mechanical properties of the glass fiber mesh cloth and the tensile property, the tear resistance and other properties generated by the combination of other raw materials, and has more excellent tensile deformation property, puncture resistance and impact resistance.
The fourth aspect of the invention provides the use of the waterproof polymer roll or the waterproof polymer roll produced by the production method as a waterproof material for tunnel lining. The high-molecular waterproof coiled material provided by the invention has excellent tensile deformation performance, puncture resistance and impact resistance, and can meet the waterproof requirement of tunnel lining.
The results of the examples show that the yield strength of the high polymer waterproof coiled material provided by the invention is 26.2 to 33.7MPa, the yield elongation is 69.3 to 86.8 percent, the puncture strength is 450 to 491.5N, and the impact strength is 83.6 to 110.8kJ/m 2 。
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following problems are easily faced in the waterproof construction process of the tunnel lining: when the surface of the primary support is concave-convex obviously, the waterproof coiled material is possibly broken by the tensile force applied to the waterproof coiled material under the extrusion action generated by the secondary lining; stress adjustment caused by changes of creep pressure, expansive pressure and the like of weak surrounding rock can cause the primary support to shrink and extrude the waterproof coiled material to generate a stretching effect; a large number of sharp anchor rod heads which are missed during anchor spraying support exist on the concrete surface of the primary support, and waterproof coiled materials are easy to puncture.
In order to solve the problems, the invention provides a high-molecular waterproof coiled material which is prepared from the following raw materials in parts by mass:
30 to 50 parts of high-density polyethylene;
30 to 50 parts of linear low-density polyethylene;
26 to 38 portions of ethylene propylene diene monomer;
19-29 parts of butyl rubber;
19-29 parts of polyvinyl acetate;
13-19 parts of a filler;
6-10 parts of melamine salt;
5363 parts of antioxidant 3~5;
5363 portions of cross-linking agent 3~5.
As a preferred embodiment of the invention, the raw materials comprise the following components in parts by weight:
35 to 45 portions of high-density polyethylene;
35 to 45 portions of linear low-density polyethylene;
29-35 parts of ethylene propylene diene monomer;
22-26 parts of butyl rubber;
22-26 parts of polyvinyl acetate;
15-17 parts of a filler;
melamine salt 7~9 parts;
3.5 to 4.5 portions of antioxidant;
3.5 to 4.5 portions of cross-linking agent.
As a more preferable embodiment of the present invention, the above raw materials are in parts by mass:
40 parts of high-density polyethylene;
40 parts of linear low-density polyethylene;
32 parts of ethylene propylene diene monomer;
24 parts of butyl rubber;
24 parts of polyvinyl acetate;
16 parts of a filling agent;
8 parts of melamine salt;
4 parts of an antioxidant;
4 parts of a crosslinking agent.
As a preferred embodiment of the present invention, the high density polyethylene has a melt index of 0.3 to 1.0g/10min, and the linear low density polyethylene has a melt index of 1.5 to 2.5g/10min. The high-density polyethylene and the linear low-density polyethylene with the melt index are used together according to the proportion of the invention, which is more beneficial to improving the toughness and the strength of the obtained waterproof coiled material.
In the embodiment of the invention, the melt index of the ethylene propylene diene monomer is preferably 70-90g/10 min.
As a preferable embodiment of the invention, the filler is at least one selected from white carbon black, nano montmorillonite, mica sheet, kaolin, talcum powder, modified talcum powder, titanium dioxide and calcium carbonate, and the particle size is 100-400 meshes. The filler can reduce the processing viscosity in the production process, is favorable for smooth processing, and simultaneously improves the mechanical property and the puncture strength of the obtained high-molecular waterproof coiled material. The modified talcum powder prepared by the following method is preferably adopted: mixing talcum powder and an oxalic acid aqueous solution for 20 to 40min according to a mass ratio of 1 to 4 to 5, drying, and adding vinyl tri (beta-methoxyethoxy) silane and sodium distearoyl tartrate diester, wherein the total mass of the vinyl tri (beta-methoxyethoxy) silane and the sodium distearoyl tartrate diester is 0.03 to 0.07 time of the mass of the talcum powder, and the mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the sodium distearoyl tartrate diester is 2 to 3. The modified talcum powder prepared by the method is not easy to agglomerate, can keep a good and stable dispersion state in the preparation process of the high-molecular waterproof coiled material, and meanwhile, the interlayer spacing of the modified talcum powder is widened, so that other components can enter the talcum powder, the compatibility of the talcum powder and other components is improved, and the mechanical property of the high-molecular waterproof coiled material can be improved.
In the embodiment of the present invention, melamine hydrochloride, melamine sulfate, melamine nitrate, melamine oxalate or melamine acetate is preferably used as the melamine salt.
In the embodiment of the invention, the antioxidant is preferably at least one of tetra [ beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010), tris (2,4-di-tert-butylphenyl) phosphite (antioxidant 168), 2,2' -methylenebis (4,6-di-tert-butylphenol) (antioxidant 2246), 2,6-di-tert-butyl-p-cresol (antioxidant 264), N-phenyl-N-isopropyl-p-phenylenediamine and diisooctyl-p-phenylenediamine.
In the embodiment of the present invention, the crosslinking agent is preferably dicumyl peroxide, styrene, acrylonitrile or glyoxal, and dicumyl peroxide is preferably used. The cross-linking agent is beneficial to promoting the cross-linking reaction and improving the compactness of the obtained high-molecular waterproof coiled material.
The embodiment of the invention also provides a production method of the polymer waterproof roll, which comprises the following operations:
mixing ethylene propylene diene monomer, butyl rubber and a filler, extruding for the first time, and granulating to obtain a first premix;
mixing the first premix with the high-density polyethylene and the linear low-density polyethylene, and performing secondary extrusion and granulation to obtain a second premix;
and mixing the second premix with the rest raw materials, extruding, and performing calendaring molding to obtain the polymer waterproof roll.
The kneading of the present invention is carried out in an internal mixer, and the kneading rotation speed is preferably 40 to 70rpm. And (3) extruding by a double-screw extruder after mixing to 110-150 ℃, wherein the temperature of the first extrusion is preferably 180-240 ℃, the extrusion rate is 1.5-2.5 m/min, the temperature of the second extrusion is preferably 160-200 ℃, and the extrusion rate is 2-5 m/min. And granulating in a conventional manner in the field after the first extrusion and the second extrusion, and performing calendaring molding in a conventional manner in the field after the last extrusion.
The high molecular waterproof coiled material can also comprise a grid framework material, such as glass fiber grid cloth. In this case, the embodiment of the present invention provides a corresponding production method:
arranging the glass fiber mesh in an acetone solution containing polylactic acid and polyvinyl acetate at the temperature of 30-45 ℃ for 1-2h, taking out and drying to obtain glass fiber mesh cloth for the first treatment;
soaking the glass fiber mesh cloth subjected to the primary treatment in a cyclohexane solution containing ethylene propylene diene monomer and butyl rubber for 1 to 2h, taking out and drying to obtain a glass fiber mesh cloth subjected to the secondary treatment;
mixing and melting the rest raw materials, coating the mixture on the secondary-treated glass fiber gridding cloth, and drying and curing to obtain the glass fiber gridding cloth.
The method introduces the glass fiber mesh cloth, firstly changes the surface state of the glass fiber mesh cloth through primary treatment, attaches polyvinyl acetate on the glass fiber mesh cloth, then combines ethylene propylene diene monomer rubber and butyl rubber with the polyvinyl acetate on the glass fiber mesh cloth through secondary treatment, and then combines with other raw materials to finally form the polymer waterproof roll containing the glass fiber mesh cloth and the raw materials. The obtained high polymer waterproof coiled material has more excellent tensile deformation performance, puncture resistance and impact resistance.
The invention does not specially limit the specific size and specification of the obtained high polymer waterproof roll, and the high polymer waterproof roll can be correspondingly designed and selected according to actual requirements.
The invention also provides the application of the high polymer waterproof roll as a tunnel lining waterproof material. The high-molecular waterproof coiled material provided by the invention has excellent tensile deformation performance, puncture resistance and impact resistance, and can meet the waterproof requirement of tunnel lining. When the material is used as a tunnel lining waterproof material, the theoretical service life is about 100 to 120 years.
The following examples are intended to illustrate the invention in more detail.
The starting materials used in the following examples were all commercially available, unless otherwise specified.
Example 1~5
Embodiment 1~5 of the present invention provides a polymer waterproof roll, which is prepared from the following raw materials in parts by weight as shown in table 1:
TABLE 1 raw materials and parts by weight of example 1~5
In table 1, the preparation method of the modified talc powder is as follows: mixing talcum powder and 20-40 wt% oxalic acid aqueous solution for 20-40min according to a mass ratio of 1-4-5, drying, and adding vinyl tri (beta-methoxyethoxy) silane and bis-stearoyl sodium tartrate diester, wherein the total mass of the vinyl tri (beta-methoxyethoxy) silane and the bis-stearoyl sodium tartrate diester is 0.03-0.07 time of the mass of the talcum powder, and the mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the bis-stearoyl sodium tartrate diester is 2-3. Specific preparation parameters for modified talc in example 1~3 are shown in table 2:
TABLE 2 preparation parameters for modified talc in example 1~3
The production method of the polymer waterproof roll material of the embodiment 1~5 is as follows:
(1) Mixing ethylene propylene diene monomer, butyl rubber and a filler in an internal mixer at the rotating speed of 60rpm, extruding for the first time through a double-screw extruder at the temperature of 130 ℃, setting the temperature of the extruder at 210 ℃ and the extrusion rate at 2.0m/min, cutting and granulating after extruding to obtain a first mixed material;
(2) Mixing the first mixed material with high-density polyethylene and linear low-density polyethylene in a mixer for 10min, performing secondary extrusion through a double-screw extruder, setting the temperature of the extruder at 180 ℃, and the extrusion rate at 2.5m/min, and cutting and granulating after extrusion to obtain a second premix;
(3) And mixing the second premix and the rest raw materials in a mixer for 10min, carrying out the last extrusion through a double-screw extruder, setting the temperature of the extruder at 180 ℃, and the extrusion rate at 1.5m/min, and carrying out calendaring molding to obtain the polymer waterproof coiled material.
Examples 6 to 10
Embodiments 6 to 10 of the present invention provide a polymer waterproof roll, which is prepared from the following raw materials in parts by weight shown in table 3:
TABLE 3 raw materials and parts by mass for examples 6 to 10
The production method is basically the same as that of the example 1, and part of parameters are different, and the details are shown in a table 4:
TABLE 4 concrete parameters of production methods in examples 6 to 10
Example 11
The embodiment provides a polymer waterproof roll, and the raw materials include glass fiber mesh cloth and the raw materials in embodiment 1. The production method comprises the following steps:
arranging the glass fiber mesh in an acetone solution containing polylactic acid (15 wt%) and polyvinyl acetate (15 wt%) at 30-45 ℃ for 1.5h, taking out and drying to obtain a glass fiber mesh cloth for the first treatment;
immersing the first-treated glass fiber mesh cloth in a cyclohexane solution containing ethylene propylene diene monomer (20% by weight) and butyl rubber (15% by weight) for 1.5h, taking out and drying to obtain a second-treated glass fiber mesh cloth;
mixing the rest raw materials, melting, coating on the twice-treated glass fiber mesh cloth, drying, and solidifying.
Comparative example 1
This comparative example provides a waterproof roll of polymer, the raw material compared with example 1, replace the linear low density polyethylene with the high density polyethylene, other raw materials and production methods are the same as example 1.
Comparative example 2
Compared with the raw materials in example 1, the raw materials of the high-molecular waterproof coiled material are replaced by the ethylene propylene diene monomer rubber, and other raw materials and the production method are the same as those in example 1.
Comparative example 3
The comparative example provides a high polymer waterproof coiled material, compared with the raw material of the example 1, the mass ratio of the high density polyethylene to the linear low density polyethylene is 8:1, and other raw materials and production methods are the same as the example 1.
Comparative example 4
Compared with the raw materials in example 1, the mass ratio of the butyl rubber to the ethylene propylene diene monomer is 1:4.
Performance testing
The polymeric waterproof rolls obtained in the examples and comparative examples were tested for yield strength, elongation at yield, puncture strength, and impact strength, and the test results are shown in table 5.
Wherein the test standard of the yield strength and the yield elongation is GB/T528-2009;
the test standard of the puncture strength is TB/T3360.1-2014;
the test standard of the impact strength is GB/T1843-2008.
TABLE 5 Performance test results of the polymer waterproof rolls obtained in examples and comparative examples
As can be seen from Table 5, the polymer waterproof roll provided by the invention has excellent tensile deformation performance, puncture resistance and impact resistance, and is suitable for being used as a tunnel lining waterproof material.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. The high-polymer waterproof coiled material is characterized by being prepared from the following raw materials in parts by mass:
30 to 50 parts of high-density polyethylene;
30 to 50 parts of linear low-density polyethylene;
26 to 38 portions of ethylene propylene diene monomer;
19-29 parts of butyl rubber;
19-29 parts of polyvinyl acetate;
13-19 parts of a filler;
6-10 parts of melamine salt;
5363 parts of antioxidant 3~5;
5363 parts of a crosslinking agent 3~5;
the cross-linking agent is dicumyl peroxide;
the filler is modified talcum powder, and the preparation method of the modified talcum powder comprises the following steps: mixing talcum powder and an oxalic acid aqueous solution for 20 to 40min according to a mass ratio of 1 to 4 to 5, drying, and adding vinyl tri (beta-methoxyethoxy) silane and sodium distearoyl tartrate diester, wherein the total mass of the vinyl tri (beta-methoxyethoxy) silane and the sodium distearoyl tartrate diester is 0.03 to 0.07 time of the mass of the talcum powder, and the mass ratio of the vinyl tri (beta-methoxyethoxy) silane to the sodium distearoyl tartrate diester is 2 to 3.
2. The polymer waterproof roll material according to claim 1, which is prepared from the following raw materials in parts by mass:
35 to 45 portions of high-density polyethylene;
35 to 45 portions of linear low-density polyethylene;
29-35 parts of ethylene propylene diene monomer;
22-26 parts of butyl rubber;
22-26 parts of polyvinyl acetate;
15-17 parts of a filler;
melamine salt 7~9 parts;
3.5 to 4.5 portions of antioxidant;
3.5 to 4.5 portions of cross-linking agent.
3. The polymer waterproof roll material according to claim 2, which is prepared from the following raw materials in parts by mass:
40 parts of high-density polyethylene;
40 parts of linear low-density polyethylene;
32 parts of ethylene propylene diene monomer;
24 parts of butyl rubber;
24 parts of polyvinyl acetate;
16 parts of a filling agent;
8 parts of melamine salt;
4 parts of an antioxidant;
4 parts of a crosslinking agent.
4. The polymer waterproof roll material as claimed in claim 1~3, wherein the high density polyethylene has a melt index of 0.3 to 1.0g/10min, and the linear low density polyethylene has a melt index of 1.5 to 2.5g/10min; and/or
The melt index of the ethylene propylene diene monomer is 70 to 90g/10min; and/or
The melamine salt is melamine hydrochloride, melamine sulfate, melamine nitrate, melamine oxalate or melamine acetate; and/or
The antioxidant is selected from at least one of pentaerythritol tetrakis [ beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate ], tris (2,4-di-tert-butylphenyl) phosphite, 2,2' -methylenebis (4,6-di-tert-butylphenol), 2,6-di-tert-butyl-p-cresol, N-phenyl-N-isopropyl-p-phenylenediamine, octadecyl beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, and diisooctyl-p-phenylenediamine.
5. The roll of polymeric waterproofing membrane according to any of claim 1~3 wherein the stock of the roll of polymeric waterproofing membrane further comprises a mesh framework material.
6. The method for producing polymer waterproof roll material of claim 1~4, comprising the following steps: mixing the ethylene propylene diene monomer, the butyl rubber and the filler, extruding for the first time, and granulating to obtain a first premix;
mixing the first premix with the high-density polyethylene and the linear low-density polyethylene, and performing secondary extrusion and granulation to obtain a second premix;
and mixing the second premix with other raw materials, extruding, and carrying out calendaring molding to obtain the polymer waterproof roll.
7. The production method of the polymer waterproof roll material as claimed in claim 5, which is characterized by comprising the following operations: arranging a glass fiber mesh in an acetone solution containing polylactic acid and polyvinyl acetate at the temperature of 30-45 ℃ for 1-2h, taking out and drying to obtain glass fiber mesh cloth for the first treatment;
soaking the glass fiber mesh cloth subjected to the primary treatment in a cyclohexane solution containing the ethylene propylene diene monomer and the butyl rubber for 1 to 2h, taking out and drying to obtain a glass fiber mesh cloth subjected to the secondary treatment;
and mixing and melting the rest raw materials, coating the mixture on the secondary-treated glass fiber mesh cloth, and drying and curing to obtain the high-molecular waterproof roll.
8. Use of the polymeric waterproofing membrane of any of claims 1~5 or made by the method of claim 6 or 7 as a tunnel lining waterproofing material.
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| CN110951245A (en) * | 2019-10-31 | 2020-04-03 | 三菱电机(中国)有限公司 | Preparation method of double-stearoyl sodium tartrate diester modified talcum powder and nylon composite material |
| CN113956558A (en) * | 2021-10-18 | 2022-01-21 | 南通科顺建筑新材料有限公司 | High-density polyethylene waterproof coiled material basement membrane, preparation method thereof and high-density polyethylene waterproof coiled material |
| CN115477815A (en) * | 2022-09-30 | 2022-12-16 | 中广核三角洲（江苏）塑化有限公司 | Hot-weldable high-resilience dynamically-vulcanized ethylene propylene diene monomer waterproof roll material and preparation method thereof |
| CN115368665A (en) * | 2022-10-26 | 2022-11-22 | 衡水中裕铁信防水技术有限公司 | High-molecular waterproof coiled material and preparation method and application thereof |
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