CN116102804A - High-temperature-resistant TPO waterproof coiled material and preparation method thereof - Google Patents
High-temperature-resistant TPO waterproof coiled material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000004611 light stabiliser Substances 0.000 claims abstract description 18
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 16
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 12
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 11
- 239000001038 titanium pigment Substances 0.000 claims abstract description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000004078 waterproofing Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- -1 3, 5-di-tert-butyl-4-hydroxyphenyl Chemical group 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 4
- 125000001841 imino group Chemical group [H]N=* 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 claims description 3
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims description 2
- UWDMKTDPDJCJOP-UHFFFAOYSA-N 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-ium-4-carboxylate Chemical compound CC1(C)CC(O)(C(O)=O)CC(C)(C)N1 UWDMKTDPDJCJOP-UHFFFAOYSA-N 0.000 claims description 2
- 206010020649 Hyperkeratosis Diseases 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- HLXGBWBZPNMJJQ-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] dioctadecyl phosphite Chemical compound P(OCCCCCCCCCCCCCCCCCC)(OCCCCCCCCCCCCCCCCCC)OCC(CO)(CO)CO HLXGBWBZPNMJJQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 claims description 2
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- 229940116351 sebacate Drugs 0.000 claims description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 11
- 230000003679 aging effect Effects 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
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- ORECYURYFJYPKY-UHFFFAOYSA-N n,n'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine;2,4,6-trichloro-1,3,5-triazine;2,4,4-trimethylpentan-2-amine Chemical compound CC(C)(C)CC(C)(C)N.ClC1=NC(Cl)=NC(Cl)=N1.C1C(C)(C)NC(C)(C)CC1NCCCCCCNC1CC(C)(C)NC(C)(C)C1 ORECYURYFJYPKY-UHFFFAOYSA-N 0.000 description 2
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- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
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- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
Images
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
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Abstract
The invention provides a high-temperature-resistant TPO waterproof coiled material and a preparation method thereof, wherein the high-temperature-resistant TPO waterproof coiled material comprises the following components in percentage by mass: 54 to 76.9 percent of TPO resin, 10 to 15 percent of TPU, 10 to 15 percent of thermoplastic rubber SEBS, 3.0 to 10.0 percent of titanium pigment, 0.03 to 2.0 percent of antioxidant, 0.03 to 2.0 percent of light stabilizer and 0.04 to 2.0 percent of ultraviolet absorber. The high-temperature-resistant TPO waterproof coiled material disclosed by the invention uses thermoplastic rubber SEBS and TPU to improve the thermal ageing property of the TPO waterproof coiled material, and the TPO resin and the titanium pigment have good compatibility; the SEBS has better temperature resistance and excellent ageing resistance, and the decomposition temperature is more than 270 ℃ under the oxygen air temperature; the waterproof coiled material is matched with an excellent antioxidant, a light stabilizer and an ultraviolet absorber, so that the heat aging performance of the waterproof coiled material is greatly improved, and the heat resistance is improved. And simultaneously improves the tensile property index and the low-temperature bending property.
Description
Technical Field
The invention belongs to the field of waterproof coiled materials, and particularly relates to a high-temperature-resistant TPO waterproof coiled material and a preparation method thereof.
Background
TPO waterproofing membrane (namely thermoplastic polyolefin waterproofing membrane) has the tensile strength big, impact resistance is good, and ultraviolet resistance is strong, and the surface is smooth, high reflectivity and resistant pollution, easy processing, green, construction is convenient, comprehensive characteristics such as product long service life. Along with the release of related policies and standards, the single-layer roofing system is rapidly developed, and the high-performance energy-saving environment-friendly TPO waterproof coiled material is highly approved in the high-end building projects in China, and the sales volume is in an ascending trend. However, in practical applications, TPO waterproofing rolls have presented higher demands on certain properties in single-layer flexible roofing systems.
The manufacturer finds that in the process of product sales and technical communication: TPO waterproofing membrane relates to exposing roofing high temperature environment more, especially roof intermediate layer project is in 70 ℃ high temperature environment for a long time in summer. The waterproof effect is ensured in the service period of the product, and the waterproof design period of the roof engineering meeting the standard requirement is more than or equal to 20 years, so that the TPO waterproof coiled material has higher requirement on the high temperature resistance.
Disclosure of Invention
In view of the above, the invention aims to provide a high-temperature-resistant TPO waterproof coiled material and a preparation method thereof, so as to improve the thermal ageing performance of the TPO waterproof coiled material, prolong the service life and improve the product quality.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the high-temperature-resistant TPO waterproof coiled material comprises the following components in percentage by mass: 54 to 76.9 percent of TPO resin, 10 to 15 percent of TPU, 10 to 15 percent of thermoplastic rubber SEBS, 3.0 to 10.0 percent of titanium pigment, 0.03 to 2.0 percent of antioxidant, 0.03 to 2.0 percent of light stabilizer and 0.04 to 2.0 percent of ultraviolet absorber.
Further, the composition comprises the following components in percentage by mass: 65 to 75.5 percent of TPO resin, 10 to 12.5 percent of TPU, 10 to 12.5 percent of thermoplastic rubber SEBS, 3.0 to 7.0 percent of titanium pigment, 0.5 to 1.0 percent of antioxidant, 0.5 to 1.0 percent of light stabilizer and 0.5 to 1.0 percent of ultraviolet absorber.
Further, the TPO resin has a density of 0.86 to 0.91g/cm 3 The melt index is 0.5-2.0g/10min; preferably, the TPO resin has a density of 0.86 to 0.89g/cm 3 The melt index is 0.5-1.0g/10min. TPO resins are commercially available, for example, under the brand name: CA10A, brand: CA02A.
Further, the thermoplastic rubber SEBS is linear; the styrene content is 20% -40%, preferably 30%. The thermoplastic rubber SEBS can be purchased in the market, for example, the brand: YH502T, YH501.
Further, the TPU has a density of 1.10 to 1.17/cm 3 Tg is-50-60 ℃. The TPUs described above are commercially available, for example, under the brand name: m70 and M75.
Further, since TPO is mainly applied to visible light and high temperature environment, the antioxidant is at least one of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tri (2, 4-di-tert-butylphenyl) phosphite, pentaerythritol dioctadecyl phosphite, 1, 2-bis (3, 5-di-tert-butyl-4-hydroxy-phenylpropionic acid) callus and 1,3, 5-trimethyl-2, 4, 6-tri (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene. The antioxidant is commercially available, and can be selected from at least one of 330, 168, 1010.
Further, the light stabilizer is a hindered amine light stabilizer; preferably, the light stabilizer is poly { [6- [ (1, 3-tetramethylbutyl) amino ] ] -1,3, 5-triazine-2, 4-bis [ (2, 6), -tetramethyl-piperidinyl) imino ] -1, 6-2-diyl [ (2, 6-tetramethyl-4-piperidinyl) imino ] }, poly (4-hydroxy-2, 6-tetramethyl-1-piperidylethanol) succinate, bis (2, 6-tetramethyl-4-piperidyl) sebacate, 1, 6-hexamethylenediamine N, at least one of N' -bis (2, 6-tetramethyl-4-piperidinyl), 2,4, 6-trichloro-1, 3, 5-triazine, N-butyl-1-butylamine, and N-butyl-2, 6-tetramethyl-4-piperidylamine reactants. Light stabilizers are commercially available and may be selected from at least one of UV-944, UV-622, UV-770, UV-783, 2020, for example.
Further, the ultraviolet absorber is a high-efficiency benzotriazole ultraviolet absorber; preferably, the ultraviolet absorber is preferably 2- (-hydroxy-3-tert-butyl-5 "-methylphenyl) -5-chlorobenzotriazole or 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole. Ultraviolet absorbers are commercially available, for example, tinuvin 326.
Further, the titanium dioxide is rutile type titanium dioxide; preferably, the titanium dioxide is DuPont rutile titanium dioxide R902+, and the titanium has the characteristics of good luster, strong tinting strength, high whiteness, good dispersibility, heat resistance and the like, has the characteristics of reinforcement, aging resistance, sunlight resistance, cracking resistance, color change resistance, large expansion rate, acid-base resistance and ozone resistance, and greatly improves the high temperature resistance of TPO waterproof coiled materials.
The preparation method of the high-temperature-resistant TPO waterproof coiled material, which is any one of the above, comprises the following steps:
s1, mixing TPU, thermoplastic rubber SEBS, titanium dioxide, an antioxidant, a light stabilizer, an ultraviolet absorber and part of TPO resin, and then putting the mixture into a double-screw extruder through a feeding system to extrude and granulate to obtain high-temperature-resistant functional master batches;
s2, mixing and extruding the high-temperature-resistant functional master batch and the residual TPO resin, and cooling to obtain the required high-temperature-resistant TPO waterproof coiled material.
Further, in the step S1, the feeding speed is 30-50r/min, the rotating speed of a main machine of the double-screw extruder is 300-500r/min, the granulating rotating speed is 400-600r/min, and the extruding temperature is 150-190 ℃.
Further, the extrusion temperature in the step S2 is 160-200 DEG C
Compared with the prior art, the high-temperature-resistant TPO waterproof coiled material and the preparation method thereof have the following advantages:
(1) The high-temperature-resistant TPO waterproof coiled material disclosed by the invention uses thermoplastic rubber SEBS and TPU to improve the thermal ageing property of the TPO waterproof coiled material, and the TPO resin and the titanium pigment have good compatibility; the SEBS has better temperature resistance and excellent ageing resistance, and the decomposition temperature is more than 270 ℃ under the oxygen air temperature; the waterproof coiled material is matched with an excellent antioxidant, a light stabilizer and an ultraviolet absorber, so that the heat aging performance of the waterproof coiled material is greatly improved, and the heat resistance is improved. And simultaneously improves the tensile property index and the low-temperature bending property.
(2) According to the high-temperature-resistant TPO waterproof coiled material, the TPO high-temperature-resistant special functional master batch is produced, so that the auxiliary agent is dispersed more uniformly, a better effect is exerted, the service life of the prepared TPO waterproof coiled material can be prolonged, the high-temperature resistance of the coiled material is improved, the waterproof effect during the service period of the product is ensured, and the waterproof design life of roof engineering meeting the standard requirements is more than or equal to 20 years.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view showing the appearance of a waterproof roll manufactured in example 1 of the present invention;
fig. 2 is a schematic view showing the appearance of a waterproof roll manufactured in example 2 of the present invention;
fig. 3 is a schematic view showing the appearance of a waterproof roll manufactured according to the comparative example of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
The high temperature resistant TPO waterproof coiled material of this example has the following composition ratios in Table 1:
table 1 example 1 waterproof roll proportioning meter
The preparation method of the TPO waterproof coiled material of the embodiment is as follows: directly mixing the ingredients, extruding by using a single screw extruder at 190-210 ℃, and adjusting the temperature and thickness of a die head according to the extrusion condition to ensure that the coiled material is extruded smoothly.
The prepared waterproof coiled material is shown in figure 1, deposition can occur after high-speed mixing of high-density particles and powder additives, feeding is uneven, extruded coiled materials are uneven in dispersion of the additives, color is inconsistent on the surface of the coiled materials, the evenness of the coiled materials is poor during production, indexes of the coiled materials do not meet requirements, heat aging performance is not improved, and detection results are shown in tables 2 and 3.
Table 2 example 1 results of mechanical properties test of waterproof roll
Table 3 example 1 waterproof roll aging resistance test results
Example 2
The high temperature resistant TPO waterproof coiled material of this example has the following composition ratios:
table 4 example 2 waterproofing membrane batching table
| Name of the name | Number plate | Addition amount of |
| TPO special resin | CA10A | 70 |
| High-temperature-resistant functional master batch | MT15-Ti | 45 |
Wherein, the high temperature resistant functional master batch comprises the following components in parts by weight:
table 5 example 2 high temperature resistant functional masterbatch formulation table
| Name of the name | Number plate | Addition amount of |
| SEBS | YH502T | 70 |
| TPU | A185 | 68 |
| TPO special resin | Ca20A | 75 |
| Rutile type titanium dioxide | R902+ | 75 |
| Antioxidant | 330 | 2 |
| Antioxidant | 1010 | 2 |
| Light stabilizers | 2020 | 4 |
| Ultraviolet absorber | 326 | 4 |
| Polyethylene wax | SN110D | 2 |
The preparation method of the TPO waterproof coiled material of the embodiment is as follows:
(1) High temperature resistant special functional master batch granulation: the components of the functional master batch are added into a stirrer according to a proportion to be mixed uniformly, and the mixed materials are put into a double-screw extruder for extrusion granulation through a feeding system. The feeding speed is 30-50r/min, the speed of an extrusion main machine is 300-500r/min, the granulating rotating speed is 400-600r/min, and the extrusion temperature is 150-190 ℃;
(2) Mixing the high-temperature-resistant functional master batch obtained in the step (1) with the rest of TPO special resin in proportion, and carrying out three-roller calendaring, cooling, shaping and rolling, wherein the extrusion temperature is 160-200 ℃, and the die head temperature and the thickness are required to be adjusted according to the appearance and the extrusion state of the coiled material in the step, so that the coiled material is extruded smoothly, and the quality meets the requirements.
As shown in figure 2, the prepared waterproof coiled material has uniform appearance color and higher flatness, meets the GB27789-2011 standard, improves the tensile property, and can be bent at a low temperature of 50 ℃ below zero without cracks; the retention rate of tensile property is more than or equal to 90% after heat aging test for 60 days at 135 ℃ and no crack is generated when the steel sheet is bent at the low temperature of minus 40 ℃, and the detection results are shown in tables 6 and 7.
Table 6 test results of mechanical properties of the waterproof roll of example 2
Table 7 example 2 waterproof roll aging resistance test results
Comparative example
The comparative example formulation is the most common TPO waterproofing roll formulation on the market, and the respective formulations are shown in table 8:
table 8 comparative example waterproofing membrane batching table
| Sequence number | Name of the name | Addition amount of |
| 1 | PP resin | 70 |
| 2 | Masterbatch | 45 |
Wherein, the master batch comprises the following components in parts by weight:
table 9 comparative examples master batch dosage form
| Sequence number | Name of the name | Addition amount of |
| 1 | PP resin | 215 |
| 2 | Antioxidant | 4 |
| 3 | Light stabilizers | 8 |
| 4 | Titanium white powder | 75 |
| 5 | Lubricant | 2 |
The preparation method of the TPO waterproof coiled material with the comparative example is as follows:
(1) Granulating functional master batches: the components of the functional master batch are added into a stirrer according to a proportion to be mixed uniformly, and the mixed materials are put into a double-screw extruder for extrusion granulation through a feeding system. The feeding speed is 30-50r/min, the speed of an extrusion main machine is 300-500r/min, the granulating rotating speed is 400-600r/min, and the extrusion temperature is 150-190 ℃;
(2) Mixing the master batch obtained in the step (1) with the rest PP resin in proportion, and carrying out three-roller calendaring, cooling, shaping and rolling, wherein the extrusion temperature is 160-200 ℃, and the die head temperature and the thickness are required to be adjusted according to the appearance and the extrusion state of the coiled material in the step, so that the coiled material is extruded smoothly, and the quality meets the requirements.
As shown in figure 3, the prepared waterproof coiled material has uniform appearance color and higher flatness, meets the GB27789-2011 standard, but has low index compared with the example 2; the heat aging test was conducted at 135℃and the appearance was broken after 28 days, and the test results are shown in Table 10 and Table 11.
Table 10 comparative waterproof roll mechanical properties test results
Table 11 comparative waterproof roll anti-aging test results
Claims (10)
1. The high-temperature-resistant TPO waterproof coiled material is characterized by comprising the following components in percentage by mass: 54 to 76.9 percent of TPO resin, 10 to 15 percent of TPU, 10 to 15 percent of thermoplastic rubber SEBS, 3.0 to 10.0 percent of titanium pigment, 0.03 to 2.0 percent of antioxidant, 0.03 to 2.0 percent of light stabilizer and 0.04 to 2.0 percent of ultraviolet absorber.
2. The high temperature resistant TPO waterproofing membrane according to claim 1, wherein: the composite material comprises the following components in percentage by mass: 65 to 75.5 percent of TPO resin, 10 to 12.5 percent of TPU, 10 to 12.5 percent of thermoplastic rubber SEBS, 3.0 to 7.0 percent of titanium pigment, 0.5 to 1.0 percent of antioxidant, 0.5 to 1.0 percent of light stabilizer and 0.5 to 1.0 percent of ultraviolet absorber.
3. The high temperature resistant TPO waterproofing membrane according to claim 1, wherein: the TPO resin has a density of 0.86-0.91g/cm 3 The melt index is 0.5-2.0g/10min; preferably, the TPO resin has a density of 0.86 to 0.89g/cm 3 The melt index is 0.5-1.0g/10min.
4. The high temperature resistant TPO waterproofing membrane according to claim 1, wherein: the antioxidant is at least one of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tri (2, 4-di-tert-butylphenyl) phosphite, pentaerythritol dioctadecyl phosphite, 1, 2-bis (3, 5-di-tert-butyl-4-hydroxy-phenylpropionic acid) callus and 1,3, 5-trimethyl-2, 4, 6-tri (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene.
5. The high temperature resistant TPO waterproofing membrane according to claim 1, wherein: the light stabilizer is a hindered amine light stabilizer; preferably, the light stabilizer is poly { [6- [ (1, 3-tetramethylbutyl) amino ] ] -1,3, 5-triazine-2, 4-bis [ (2, 6), -tetramethyl-piperidinyl) imino ] -1, 6-2-diyl [ (2, 6-tetramethyl-4-piperidinyl) imino ] }, poly (4-hydroxy-2, 6-tetramethyl-1-piperidylethanol) succinate, bis (2, 6-tetramethyl-4-piperidyl) sebacate, 1, 6-hexamethylenediamine N, at least one of N' -bis (2, 6-tetramethyl-4-piperidinyl), 2,4, 6-trichloro-1, 3, 5-triazine, N-butyl-1-butylamine, and N-butyl-2, 6-tetramethyl-4-piperidylamine reactants.
6. The high temperature resistant TPO waterproofing membrane according to claim 1, wherein: the ultraviolet absorber is a high-efficiency benzotriazole ultraviolet absorber; preferably, the ultraviolet absorber is preferably 2- (-hydroxy-3-tert-butyl-5 "-methylphenyl) -5-chlorobenzotriazole or 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole.
7. The high temperature resistant TPO waterproofing membrane according to claim 1, wherein: the titanium dioxide is rutile titanium dioxide; preferably, the titanium dioxide is DuPont rutile titanium dioxide R902+.
8. The method for preparing the high-temperature-resistant TPO waterproof coiled material according to any one of claims 1 to 7, which is characterized by comprising the following steps:
s1, mixing TPU, thermoplastic rubber SEBS, titanium dioxide, an antioxidant, a light stabilizer, an ultraviolet absorber and part of TPO resin, and then putting the mixture into a double-screw extruder for extrusion granulation to obtain high-temperature-resistant functional master batch;
s2, mixing and extruding the high-temperature-resistant functional master batch and the residual TPO resin, and cooling to obtain the required high-temperature-resistant TPO waterproof coiled material.
9. The method for preparing the high-temperature-resistant TPO waterproof coiled material according to claim 8, which is characterized in that: in the step S1, the rotation speed of a main machine of the double-screw extruder is 300-500r/min, the rotation speed of the granulating is 400-600r/min, and the extrusion temperature is 150-190 ℃.
10. The method for preparing the high-temperature-resistant TPO waterproof coiled material according to claim 8, which is characterized in that: the extrusion temperature in step S2 is 160-200 ℃.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554629A (en) * | 2013-09-30 | 2014-02-05 | 潍坊市宏源防水材料有限公司 | TPO waterproof coiled material and production process thereof |
| CN111849189A (en) * | 2020-06-22 | 2020-10-30 | 安徽滁州德威新材料有限公司 | Waterproof coiled material particle and preparation method and application thereof |
| CN113637266A (en) * | 2021-09-07 | 2021-11-12 | 深圳市卓宝科技股份有限公司 | High-weather-resistance TPO (thermoplastic polyolefin) waterproof coiled material as well as preparation method and application thereof |
| CN114805974A (en) * | 2022-05-10 | 2022-07-29 | 河北宇阳泽丽防水材料有限公司 | Weather-resistant TPO waterproof coiled material and preparation method thereof |
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| CN103554629A (en) * | 2013-09-30 | 2014-02-05 | 潍坊市宏源防水材料有限公司 | TPO waterproof coiled material and production process thereof |
| CN111849189A (en) * | 2020-06-22 | 2020-10-30 | 安徽滁州德威新材料有限公司 | Waterproof coiled material particle and preparation method and application thereof |
| CN113637266A (en) * | 2021-09-07 | 2021-11-12 | 深圳市卓宝科技股份有限公司 | High-weather-resistance TPO (thermoplastic polyolefin) waterproof coiled material as well as preparation method and application thereof |
| CN114805974A (en) * | 2022-05-10 | 2022-07-29 | 河北宇阳泽丽防水材料有限公司 | Weather-resistant TPO waterproof coiled material and preparation method thereof |
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Country or region after: China Address after: No.99, Zhongnan 3rd Street, West District, Binhai New Area Development Zone, Tianjin 300462 Applicant after: Beixin Aotai Polymer Waterproof System (Tianjin) Co.,Ltd. Address before: No.99, Zhongnan 3rd Street, West District, Binhai New Area Development Zone, Tianjin 300462 Applicant before: TIANJIN BINHAI OTAI WATERPROOFING MATERIAL CO.,LTD. Country or region before: China |