CN115785556A - High-heat-resistance super-weather-resistant flame-retardant TPO (thermoplastic polyolefin) high-polymer waterproof coiled material and preparation method thereof - Google Patents
High-heat-resistance super-weather-resistant flame-retardant TPO (thermoplastic polyolefin) high-polymer waterproof coiled material and preparation method thereof Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/32—Roof garden systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to the technical field of building waterproof engineering, in particular to a high-heat-resistance super-weather-resistant flame-retardant TPO (thermoplastic polyolefin) high-molecular waterproof coiled material and a preparation method thereof, wherein the material comprises the following components in percentage by weight: inorganic filler: 30-40%, and copolymerized PP:20% -30%, ethylene acrylate elastomer: 5% -20%, TPO:20% -40%, compatilizer: 1% -4%, modifying auxiliary agent: 2-6%, composite weather resistant agent: 0.5 to 1.5 percent. The TPO polymer waterproof coiled material prepared by the formula is environment-friendly and flame-retardant, and has excellent mechanical properties such as high strength and high elongation, and excellent characteristics such as high heat resistance, high weather resistance and low temperature resistance, so that the TPO polymer waterproof coiled material has a wider application range, can be adapted to various harsh construction environments, is more convenient to construct and improves the construction efficiency.
Description
Technical Field
The invention relates to the technical field of building waterproof engineering, in particular to a high-heat-resistance super-weather-resistant flame-retardant TPO (thermoplastic polyolefin) high-molecular waterproof coiled material and a preparation method thereof.
Background
The synthetic high-molecular waterproof coiled material is a waterproof material prepared by taking synthetic high-molecular resin as a main raw material and adding a proper amount of inorganic pigment and filler. The Thermoplastic Polyolefin (TPO) waterproof coiled material is a high-end product in synthetic polymer waterproof coiled materials, has the characteristics of high strength, high elongation, high weather resistance, environmental protection and the like, and is widely applied to waterproof engineering in the fields of various industrial and civil building metal roofs, concrete roofs, root-puncture-resistant planting roofs and the like. However, because TPO is a flammable material, a flame retardant filler is required to be added when a formula of the TPO waterproof coiled material is designed so as to meet the requirements of flame retardance and fire resistance of the material for buildings. At present, domestic flame-retardant TPO is mainly an inorganic flame-retardant system TPO waterproof coiled material, a small amount of organic bromine system TPO, and organic bromine systems are not mature in the field of waterproof at present, and individual bromine systems can generate toxic gases such as brominated dioxin and the like in the combustion process, so that the toxic gases have adverse effects on human bodies and the environment, and the inorganic flame-retardant system is still the mainstream.
When roofing waterproofing membrane, especially steel construction roofing waterproofing membrane expose under specific environmental condition, for example ultraviolet irradiation, high temperature, high energy radiation etc. can lead to its heat-resisting, weatherability to reduce gradually, and along with the time lapse, the mechanical properties decrement of coiled material increases by a wide margin, the phenomenon of ftractureing appears to reduce waterproof performance, lead to the roofing seepage, adverse effect such as steel corruption makes whole piece waterproofing membrane performance inefficacy, thereby shortened building life. In the prior art, the heat resistance of a common inorganic flame-retardant system TPO waterproof coiled material is generally improved by improving the inorganic filling amount of the coiled material, but the problems of insufficient mechanical property, insufficient low-temperature property and the like are often caused after the coiled material is excessively filled; especially in some special areas with severer external environment, the requirement on the waterproof coiled material is severer, which can not be met by the common inorganic flame-retardant TPO waterproof coiled material. Therefore, a TPO polymer waterproof coiled material with high heat resistance and weather resistance and excellent mechanical property and flame retardance needs to be designed to solve the problems existing in the conventional inorganic flame-retardant system TPO waterproof coiled material.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a high-heat-resistance super-weather-resistant flame-retardant TPO (thermoplastic polyolefin) high-polymer waterproof coiled material which can endow high heat resistance and super-weather resistance on the premise of not influencing the mechanical property, low-temperature property and flame retardance, so that the high-heat-resistance super-weather-resistant flame-retardant TPO high-polymer waterproof coiled material has wider adaptability and longer service life.
In order to solve the technical problems, the invention adopts the technical scheme that:
the embodiment of the invention provides a high heat-resistant super-weather-resistant flame-retardant TPO (thermoplastic polyolefin) high-polymer waterproof roll, which comprises the following components: the weight percentage is as follows:
inorganic filler: 30-40%, copolymerized PP: 20-30%, ethylene acrylate elastomer: 5 to 20%, TPO: 20-40%, compatilizer: 1% -4%, modifying auxiliary agent: 2-6%, composite weather resistant agent: 0.5 to 1.5 percent;
the modification auxiliary agent comprises the following components in parts by weight: zinc methacrylate: 1% -3%, vinyl bis stearamide: 0.5% -1%, di-tert-butyl cumene peroxide (BIPI): 0.5-1.5%, white mother: 1% -3%, carbon black: 0.5 to 1 percent.
The invention provides a high-heat-resistance super-weather-resistant flame-retardant TPO high-molecular waterproof roll, which is based on the high heat resistance and weather resistance of an ethylene acrylate elastomer, the ethylene acrylate elastomer is vulcanized and crosslinked through a vulcanization system consisting of a vulcanizing agent BIPI, an accelerator zinc methacrylate and reinforcing agent carbon black in a modification auxiliary agent, so that the excellent heat resistance of the ethylene acrylate elastomer is further improved, the problems that the heat resistance of a roll is improved by improving the inorganic filling amount of a common inorganic flame-retardant system TPO waterproof roll generally, but the mechanical property and low-temperature property are insufficient after the roll is excessively filled are solved, meanwhile, the compatibility of the roll and an inorganic mineral material is improved through the compound use of the ethylene acrylate elastomer and a compatilizer, the vulcanized ethylene acrylate elastomer is perfectly combined with the TPO, the PP and the inorganic mineral material, and the mechanical property and weather resistance reduction of the sheet caused by the layering of the incompatible sheets are avoided; the introduction of TPO provides softness and low-temperature performance of the sheet; the introduction of the inorganic filler provides the sheet with dimensional stability, high temperature resistance and flame retardance; the introduction of the copolymerized PP improves the strength of the sheet and provides certain high-temperature resistance; the introduction of the composite weather resistant agent greatly increases the weather resistance of the sheet, and simultaneously, the composite weather resistant agent can provide excellent light stability for PP and PE molecules and shows unique long-acting thermal stability for products filled with PP and carbon black filling systems, thereby prolonging the service life of the sheet. Through reasonable formula collocation, made a fire-retardant TPO polymer waterproofing membrane of environmental protection, possessed excellent mechanical properties such as high strength, high elongation simultaneously again and high heat-resisting, high weatherability, good characteristics such as low temperature resistant for TPO polymer waterproofing membrane range of application is wider, more can adapt to various harsh construction environment, and it is more convenient to construct, improves the efficiency of construction.
Optionally, the TPO is a polyolefin-based thermoplastic elastomer, specifically an ethylene-octene copolymer.
As can be seen from the above description, TPO has characteristics of small density, high elasticity, etc., and provides excellent softness and low-temperature properties to sheets.
Optionally, the inorganic filler is magnesium hydroxide powder.
From the above description, it can be seen that the magnesium hydroxide powder can provide dimensional stability and high temperature resistance of the sheet, and at the same time, improve the heat resistance of the sheet to some extent based on the high heat resistance of the inorganic mineral itself.
Optionally, the ethylene acrylate elastomer employs dupont VMX5000.
According to the description, the dupont VMX5000 series ethylene acrylate elastomer has more outstanding heat resistance and longer heat aging resistance life compared with the same type of products.
Optionally, the compatibilizing agent is a maleic anhydride type grafting agent.
According to the description, the organic material and the inorganic mineral material have poor compatibility, so that the compatibility of the organic material and the inorganic mineral material can be well improved by adding the compatilizer, the sheet material delamination caused by incompatibility of the organic material and the inorganic mineral material is avoided, and the good mechanical property and weather resistance of the sheet material are ensured.
Optionally, the composite weather-resistant agent is taiwan permanent light ST19007.
According to the above description, the effective components of taiwan permanent light ST19007 are macromolecular hindered phenol antioxidant (GM-ME-IPDI) containing thioether group, ultraviolet absorbent (UVP-327,2- (2 ' -hydroxy-3 ',5' -di-tert-phenyl) -5-chlorobenzotriazole) and hindered amine light stabilizer (basf 2020). Hindered phenol in the antioxidant serves as a main antioxidant group to intercept and stabilize free radicals, while thioether groups can decompose hydrogen peroxide to form a stable product, and the high molecular weight of the antioxidant can ensure that the antioxidant can resist certain high temperature; the ultraviolet absorbent can strongly absorb ultraviolet rays with the wavelength of 270-380 nm, has good chemical stability, extremely small volatility and good compatibility with polyolefin, and has obvious synergistic effect when being used with an antioxidant; the hindered amine light stabilizer can provide excellent light stability for PP and PE materials, and simultaneously shows unique long-acting heat stability for products filled with PP and carbon black filling systems. By using the composite weather resistant agent, the anti-aging performance of the sheet can be further improved, so that the service life of the sheet is prolonged.
Another object of the present invention is to provide a method for preparing a high heat-resistant, super weather-resistant and flame-retardant TPO polymer waterproof roll, which comprises the following steps:
s1, preparing raw materials: preparing a raw material A and a raw material B according to a ratio, wherein the raw material A comprises inorganic filler, copolymerized PP, TPO, a compatilizer, a composite weather-resistant agent and a modification auxiliary agent; the raw material B comprises inorganic filler, copolymerized PP, TPO, compatilizer, composite weather-resistant agent, ethylene acrylate elastomer and modification auxiliary agent.
S2, premixing raw materials: and respectively sucking the prepared raw material A and the prepared raw material B into different mixers in vacuum according to the proportion, respectively carrying out high mixing for 5 minutes, preheating for 5 minutes at constant temperature, and then carrying out low mixing for 7 minutes.
As can be seen from the above description, the function of the premixing is to ensure the homogeneity of the mixing of the raw materials.
S3, extrusion molding: conveying the mixed formula material B into a double-screw B, extruding a high polymer sheet B at the extrusion temperature of 160-190 ℃, conveying the mixed formula material A into the double-screw A, extruding the high polymer sheet A and compounding mesh cloth at the extrusion temperature of 160-190 ℃, compounding the mesh cloth with the sheet B after three-roller thickness setting molding, and cooling after two-roller thickness setting molding.
S4, internal stress treatment: and (3) drawing the formed polymer waterproof roll to an internal stress treatment section, and carrying out sheet treatment and sizing by cross drawing for 4 times through 4 groups of high-temperature rollers at 80 ℃ and 4 groups of low-temperature rollers at 10 ℃ to eliminate the internal stress in the sheet.
According to the above description, the internal stress relieving treatment can reduce the large shrinkage and performance decay of the sheet material due to the influence of the internal stress in the later period, and ensure the stability of the size and the performance of the sheet material.
S5, rolling of coiled materials: and cooling, drawing and rolling the treated high-molecular waterproof coiled material.
Wherein the modification auxiliary agent in the raw material A in the S1 comprises vinyl bis stearamide and white mother; the modification auxiliary agent in the raw material B comprises zinc methacrylate, di-tert-butyl cumene peroxide, vinyl bis stearamide and carbon black.
According to the description, the vinyl bis-stearamide in the modification auxiliary agent is used as an internal and external lubricant, so that the damage of raw materials to the double screws is reduced, and the extrusion efficiency of the double screws is improved; the white parent is dye; the carbon black is a dye and also plays a role of a reinforcing agent; BIPI is a vulcanizing agent, and forms a vulcanization system together with an accelerator of zinc methacrylate and carbon black, so that the ethylene acrylate elastomer is vulcanized and crosslinked, and the heat resistance of the ethylene acrylate elastomer is further improved.
Drawings
FIG. 1 is a flow chart of the preparation process of the present invention.
Detailed Description
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
The invention provides a high heat-resistant super weather-resistant flame-retardant TPO high-molecular waterproof roll, which comprises the following components: the weight percentage is as follows:
inorganic filler: 30-40%, and copolymerized PP:20% -30%, ethylene acrylate elastomer: 5% -20%, TPO:20% -40%, compatilizer: 1% -4%, modifying auxiliary agent: 2-6%, composite weather resistant agent: 0.5 to 1.5 percent;
the modification auxiliary agent comprises the following components in parts by weight: zinc methacrylate: 1% -3%, vinyl bis stearamide: 0.5% -1%, di-tert-butyl cumene peroxide: 0.5-1.5%, white mother: 1% -3%, carbon black: 0.5 to 1 percent.
Optionally, the TPO is a polyolefin-based thermoplastic elastomer, specifically an ethylene-octene copolymer.
Optionally, the inorganic filler is magnesium hydroxide powder.
Optionally, the ethylene acrylate elastomer employs dupont VMX5000.
Optionally, the compatibilizing agent is a maleic anhydride type grafting agent.
Optionally, the composite weather resisting agent adopts taiwan permanent light ST19007.
As shown in the attached figure 1, on the other hand, the invention provides a preparation method of a high heat-resistant super weather-proof flame-retardant TPO polymer waterproof roll, which comprises the following steps:
s1, preparing raw materials: preparing a raw material A and a raw material B according to a ratio, wherein the raw material A comprises inorganic filler, copolymerized PP, TPO, a compatilizer, a composite weather-resistant agent and a modification auxiliary agent; the raw material B comprises inorganic filler, copolymerized PP, TPO, compatilizer, composite weather-resistant agent, ethylene acrylate elastomer and modification auxiliary agent.
S2, premixing raw materials: the prepared raw material A and the raw material B are respectively sucked into different high-speed mixers through vacuum pumps according to the proportion, are uniformly and highly mixed for 5 minutes in the different high-speed mixers, are preheated for 5 minutes at constant temperature, and are respectively sucked into two low-speed mixers to mix for 7 minutes.
S3, extrusion molding: conveying the mixed formula material B into a double-screw B through a material conveying system, extruding a high polymer sheet B at an extrusion temperature of 160-190 ℃, conveying the mixed formula material A into the double-screw A through the material conveying system, extruding the high polymer sheet A at an extrusion temperature of 160-190 ℃, compounding the high polymer sheet A with a composite mesh fabric, performing thickness setting molding through a three-roller molding machine, compounding with the sheet B, performing thickness setting molding through two rollers, and cooling.
S4, internal stress treatment: the formed high polymer waterproof coiled material is drawn to an internal stress treatment section through a drawing roller, and is subjected to sheet treatment and sizing through cross drawing for 4 times of 4 groups of high-temperature rollers at 80 ℃ and 4 groups of low-temperature rollers at 10 ℃ to eliminate the internal stress in the sheet.
S5, rolling of coiled materials: and cooling, drawing and rolling the treated high-molecular waterproof coiled material.
Wherein the modification auxiliary agent in the raw material A in the S1 comprises vinyl bis stearamide and white mother; the modification auxiliary agent in the raw material B comprises zinc methacrylate, BIPI, vinyl bis stearamide and carbon black.
Example 1:
a high heat-resistant super-weather-resistant flame-retardant TPO high-molecular waterproof coiled material comprises the following components in percentage by weight:
the raw material A comprises 40% of inorganic filler, 23% of copolymerized PP, 30% of TPO, 2% of compatilizer, 1.5% of composite weather resistant agent and 3.5% of modification auxiliary agent, wherein the modification auxiliary agent comprises 0.5% of vinyl bis stearamide and 3% of white masterbatch.
The raw material B comprises 30% of inorganic filler, 23% of copolymerized PP, 30% of TPO, 2% of compatilizer, 1% of composite weather resistant agent, 10% of ethylene acrylate elastomer and 4% of modification auxiliary agent, wherein the modification auxiliary agent comprises 1.5% of zinc methacrylate, 1% of BIPI, 1% of vinyl bis stearamide and 0.5% of carbon black.
It is prepared by the following steps:
s1, preparing raw materials: preparing the raw material A and the raw material B according to the mixture ratio.
S2, premixing raw materials: the prepared raw material A and the raw material B are respectively sucked into different high-speed mixers through vacuum pumps according to the proportion, are uniformly and highly mixed for 5 minutes in the different high-speed mixers, are preheated for 5 minutes at constant temperature, and are respectively sucked into two low-speed mixers to mix for 7 minutes.
S3, extrusion molding: conveying the mixed formula material B into a double-screw B through a material conveying system, extruding a high polymer sheet B at an extrusion temperature of 160-190 ℃, conveying the mixed formula material A into the double-screw A through the material conveying system, extruding the high polymer sheet A at an extrusion temperature of 160-190 ℃, compounding the high polymer sheet A with a composite mesh fabric, performing thickness setting molding through a three-roller molding machine, compounding with the sheet B, performing thickness setting molding through two rollers, and cooling.
S4, internal stress treatment: the formed polymer waterproof coiled material is drawn to an internal stress treatment section through a drawing roller, and is subjected to sheet treatment and sizing through cross drawing of 4 groups of high-temperature rollers at 80 ℃ and 4 groups of low-temperature rollers at 10 ℃ for 4 times, so that the internal stress in the sheet is eliminated.
S5, rolling of coiled materials: and cooling, drawing and rolling the treated high-molecular waterproof coiled material.
Example 2:
this example differs from example 1 in the amount of each component added.
A high heat-resistant super-weather-resistant flame-retardant TPO high-molecular waterproof coiled material comprises the following components in percentage by weight:
the raw material A comprises 40% of inorganic filler, 23% of copolymerized PP, 30% of TPO, 2% of compatilizer, 1.5% of composite weather resistant agent and 3.5% of modification auxiliary agent, wherein the modification auxiliary agent comprises 0.5% of vinyl bis stearamide and 3% of white masterbatch.
The raw material B comprises 30% of inorganic filler, 23% of copolymerized PP, 35% of TPO, 2.5% of compatilizer, 1% of composite weather resistant agent, 5% of ethylene acrylate elastomer and 3.5% of modification auxiliary agent, wherein the modification auxiliary agent comprises 1% of zinc methacrylate, 1% of BIPI, 1% of vinyl bis stearamide and 0.5% of carbon black.
Example 3:
this example differs from example 1 in the amount of each component added.
A high heat-resistant super-weather-resistant flame-retardant TPO high-molecular waterproof coiled material comprises the following components in percentage by weight:
the raw material A comprises 40% of inorganic filler, 23% of copolymerized PP, 30% of TPO, 2.5% of compatilizer, 0.8% of composite weather resistant agent and 3.7% of modification auxiliary agent, wherein the modification auxiliary agent comprises 0.7% of vinyl bis stearamide and 3% of white masterbatch.
The raw material B comprises 30% of inorganic filler, 23.5% of copolymerized PP, 30% of TPO, 2% of compatilizer, 0.5% of composite weather-resistant agent, 10% of ethylene acrylate elastomer and 4% of modification auxiliary agent, wherein the modification auxiliary agent comprises 1.5% of zinc methacrylate, 1% of BIPI, 1% of vinyl bis stearamide and 0.5% of carbon black.
Comparative example 1:
the difference between the comparative example and the example 1 is that the raw material B does not contain ethylene acrylate elastomer, zinc methacrylate and BIPI, and the specific raw material formula is adjusted as follows:
the raw material A comprises 40% of inorganic filler, 23% of copolymerized PP, 30% of TPO, 2% of compatilizer, 1.5% of composite weather-resistant agent and 3.5% of modification auxiliary agent, wherein the modification auxiliary agent comprises 0.5% of vinyl bis stearamide and 3% of white masterbatch.
The raw material B comprises 30% of inorganic filler, 25% of copolymerized PP, 40% of TPO, 2.5% of compatilizer, 1% of composite weather resistant agent and 1.5% of modification auxiliary agent, wherein the modification auxiliary agent comprises 1% of vinyl bis stearamide and 0.5% of carbon black.
Comparative example 2:
the difference between the comparative example and the example 1 is that the raw materials A and B do not contain the composite weather-resistant agent, and the specific raw material formula is adjusted as follows:
the raw material A comprises the following components in percentage by weight: 40% of inorganic filler, 24% of copolymerized PP, 30% of TPO, 2.5% of compatilizer and 3.5% of modification auxiliary agent, wherein the modification auxiliary agent comprises 0.5% of vinyl bis stearamide and 3% of white mother liquor.
The raw material B comprises the following components in percentage by weight: 30% of inorganic filler, 24% of copolymerized PP, 30% of TPO, 2% of compatilizer, 10% of ethylene acrylate elastomer and 4% of modification auxiliary agent, wherein the modification auxiliary agent comprises 1.5% of zinc methacrylate, 1% of BIPI, 1% of vinyl bis stearamide and 0.5% of carbon black.
The TPO polymeric waterproofing membranes prepared in examples 1 to 3 and comparative examples 1 and 2 were subjected to various performance tests, and the results are shown in the following tables 1 to 3.
TABLE 1 mechanical Properties of TPO Polymer waterproofing membranes in examples 1-3 and comparative examples 1-2
As can be seen from table 1, compared with comparative example 1, in example 1, a vulcanization system formed by adding a vulcanizing agent BIPI, an accelerator zinc methacrylate and a reinforcing agent carbon black is used to vulcanize and crosslink an ethylene acrylate elastomer, so that the obtained material has a certain improved mechanical property, high strength, high elongation, excellent low temperature resistance, dimensional stability and water resistance, and each index meets the existing standard of GB/T27789-2011. The material has good mechanical property, soft texture, good conformability with a contact surface and excellent weldability, thereby ensuring the simplicity of material construction and improving the construction efficiency.
TABLE 2 weather resistance of TPO Polymer waterproofing membranes in examples 1-3 and comparative examples 1-2
Based on the test data in table 2, it can be seen from example 1 and comparative example 1 that the heat resistance of the material is greatly improved by adding a vulcanization system formed by a vulcanizing agent BIPI, an accelerator zinc methacrylate and reinforcing agent carbon black to vulcanize and crosslink the ethylene acrylate elastomer; the weather-resistant composite material prepared in the embodiment 1 is remarkably improved in weather resistance by using the composite weather-resistant agent, meets the standard requirement of GB/T27789-2011, can still maintain good mechanical property even in a severe environment for a long time, and is long in service life.
TABLE 3 flame retardancy of TPO Polymer waterproofing membranes in examples 1-3 and comparative examples 1-2
As can be seen from Table 3, the high-heat-resistance, super-weather-resistant and flame-retardant TPO polymer waterproof coiled material obtained according to the formula and the process flow can meet various index requirements of flame-retardant tests, has a high-efficiency flame-retardant effect of low smoke quantity and no toxicity, has a smoke toxicity of AQ2 level (safety level), meets expected requirements, and has no influence on the environment and human bodies.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The high-heat-resistance super-weather-resistant flame-retardant TPO high-polymer waterproof coiled material is characterized by comprising the following components in percentage by weight:
inorganic filler: 30-40%, and copolymerized PP:20% -30%, ethylene acrylate elastomer: 5% -20%, TPO:20% -40%, compatilizer: 1% -4%, modifying auxiliary agent: 2-6%, composite weather resistant agent: 0.5 to 1.5 percent;
the modification auxiliary agent comprises the following components in parts by weight: zinc methacrylate: 1% -3%, vinyl bis stearamide: 0.5-1%, di-tert-butyl cumene peroxide: 0.5-1.5%, white mother: 1% -3%, carbon black: 0.5 to 1 percent.
2. The waterproof roll material of TPO polymer of claim 1, wherein the TPO is polyolefin thermoplastic elastomer, specifically ethylene-octene copolymer.
3. The high heat-resistant super weather-resistant flame-retardant TPO polymer waterproof roll material as claimed in claim 1, wherein the inorganic filler is magnesium hydroxide powder.
4. The high heat-resistant super weather-resistant flame-retardant TPO polymer waterproof roll material as claimed in claim 1, wherein the ethylene acrylate elastomer is DuPont VMX5000.
5. The high heat-resistant super weather-resistant flame-retardant TPO polymer waterproof roll material as claimed in claim 1, wherein the compatilizer is maleic anhydride type grafting agent.
6. The high heat-resistant super weather-resistant flame-retardant TPO polymer waterproof roll material as claimed in claim 1, wherein the composite weather-resistant agent is Taiwan permanent light ST19007.
7. The preparation method of the high heat-resistant super weather-resistant flame-retardant TPO polymer waterproof roll according to any one of claims 1 to 6, characterized in that the preparation method comprises the following steps:
s1, preparing raw materials: preparing a raw material A and a raw material B according to a ratio, wherein the raw material A comprises inorganic filler, copolymerized PP, TPO, a compatilizer, a composite weather-resistant agent and a modification auxiliary agent; the raw material B comprises inorganic filler, copolymerized PP, TPO, compatilizer, composite weather-resistant agent, ethylene acrylate elastomer and modification auxiliary agent;
s2, premixing raw materials: respectively sucking the prepared raw material A and the raw material B into different mixers in vacuum according to the proportion, respectively carrying out high mixing for 5 minutes, preheating for 5 minutes at constant temperature, and then carrying out low mixing for 7 minutes;
s3, extrusion molding: conveying the mixed formula material B into a double screw B, extruding a high polymer sheet B at the extrusion temperature of 160-190 ℃, conveying the mixed formula material A into the double screw A, extruding the high polymer sheet A and compounding a mesh fabric at the extrusion temperature of 160-190 ℃, compounding the mesh fabric with the sheet B after three-roller thickness setting and forming, and then performing two-roller thickness setting and forming and cooling;
s4, internal stress treatment: drawing the formed high-molecular waterproof coiled material to an internal stress treatment section, and performing sheet treatment and shaping by cross drawing for 4 times through 4 groups of high-temperature rollers at 80 ℃ and 4 groups of low-temperature rollers at 10 ℃ to eliminate the internal stress in the sheet;
s5, rolling of coiled materials: and cooling, drawing and rolling the treated high-molecular waterproof coiled material.
8. The preparation method according to claim 7, wherein the modification auxiliary in the raw material A in S1 comprises vinyl bis stearamide and white masterbatch; the modification auxiliary agent in the raw material B comprises zinc methacrylate, di-tert-butyl cumene peroxide, vinyl bis stearamide and carbon black.
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| DE19915314A1 (en) * | 1999-04-03 | 2000-10-05 | Alkor Gmbh | Matt-surfaced composite for interior parts for cars has a lower layer of polypropylene block copolymer laminated with a layer containing ethylene-vinyl acetate copolymer and acrylate rubber |
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| DE19915314A1 (en) * | 1999-04-03 | 2000-10-05 | Alkor Gmbh | Matt-surfaced composite for interior parts for cars has a lower layer of polypropylene block copolymer laminated with a layer containing ethylene-vinyl acetate copolymer and acrylate rubber |
| JP2003082171A (en) * | 2001-07-04 | 2003-03-19 | Riken Technos Corp | Thermoplastic elastomer composition |
| US20080227914A1 (en) * | 2007-03-16 | 2008-09-18 | Bfs Diversified Products, Llc | Recycled building material and method thereof |
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