CN112662042B - B1-level low-smoke halogen-free cable sheath material and preparation method thereof - Google Patents
B1-level low-smoke halogen-free cable sheath material and preparation method thereof Download PDFInfo
- Publication number
- CN112662042B CN112662042B CN202011520918.0A CN202011520918A CN112662042B CN 112662042 B CN112662042 B CN 112662042B CN 202011520918 A CN202011520918 A CN 202011520918A CN 112662042 B CN112662042 B CN 112662042B
- Authority
- CN
- China
- Prior art keywords
- cable sheath
- sheath material
- low
- smoke
- free cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention relates to the field of flame-retardant high polymer materials, in particular to a B1-level low-smoke halogen-free cable sheath material and a preparation method thereof. The raw materials of the B1-grade low-smoke halogen-free cable sheath material comprise linear low-density polyethylene resin, ethylene-octene copolymer, compatilizer, flame retardant, smoke suppression and char formation agent and processing aid. The B1-grade low-smoke halogen-free cable sheath material prepared by the invention not only has excellent physical and mechanical properties, but also has excellent flame retardant property and low combustion heat value, and can meet the B1-grade requirement of GB/T31247 when being applied to cables. The invention has simple process route and stable product quality, and is suitable for industrial production.
Description
Technical Field
The invention relates to the technical field of flame-retardant high polymer materials, in particular to a B1-level low-smoke halogen-free cable sheath material and a preparation method thereof.
Background
According to fire data statistics of recent years of fire departments in public security department, in the fire disasters occurring in China, electric fires account for about 30 percent of the total number, wherein the fires caused by wires and cables account for more than 40 percent, and combustible insulation and sheath materials in the wires and cables are ignited during the fires so as to further expand fire accidents; toxic gases and smoke emitted during the combustion of the wire and cable insulation and sheath materials can cause further casualties of personnel and prevent firefighters from extinguishing the fire.
Along with the increasing importance of the national fire safety of the building, the fire protection requirements of the national engineering building fire protection regulations for some personnel-intensive places, high-rise buildings and special places are also more and more strict, and the electrical fire protection design regulations of civil buildings clearly define cables which are higher than 100 meters, refuge layers and exposed wires of refuge rooms, underground buildings with long-term people retention and cables which are laid in suspended ceilings and pass through fire protection areas, wherein the cables with the combustion performance not lower than B1 level are adopted. At present, most of the existing low-smoke halogen-free flame-retardant cables in China can not meet the B1-level requirements of GB/T31247, and the problems of higher combustion heat value, higher heat release rate, combustion dripping and the like are mainly reflected, the fireproof requirements are difficult to meet, and the development of low-smoke halogen-free cable sheath materials with high performance and capability of meeting the B1-level requirements is urgently required.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a B1-grade low-smoke halogen-free cable sheath material and a preparation method thereof, which are used for solving the problems in the prior art.
To achieve the above and other related objects, an aspect of the present invention provides a B1-stage low-smoke halogen-free cable sheath material, wherein the B1-stage low-smoke halogen-free cable sheath material comprises the following raw materials in percentage by mass:
in some embodiments of the invention, the linear low density polyethylene resin has a density of 0.918 to 0.935g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The melt index is 0.1-0.3g/10min.
In some embodiments of the invention, the ethylene-octene copolymer has a density of 0.8 to 0.9g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The melt index is 1-5g/10min.
In some embodiments of the invention, the compatibilizing agent is maleic anhydride grafted POE; the grafting rate of maleic anhydride is 0.5% -1%; the melt index is 1-2g/10min.
In some embodiments of the invention, the flame retardant is selected from the group consisting of a mixture of aluminum hydroxide and magnesium hydroxide.
In some embodiments of the invention, the smoke suppressant char former is selected from the group consisting of modified montmorillonite, nano magnesia, and nano alumina mixtures.
In some embodiments of the invention, the mass ratio of aluminum hydroxide to magnesium hydroxide is from 2:1 to 3:1.
In some embodiments of the invention, the particle size D50 of the aluminum hydroxide selected is 1-3 μm.
In some embodiments of the invention, the magnesium hydroxide is selected to have a particle size D50 of 2-4 μm.
In some embodiments of the invention, the mass ratio of the modified montmorillonite to the nano magnesia to the nano alumina is 5:2:1.
In some embodiments of the invention, the selected modified montmorillonite is modified with an organic quaternary ammonium salt.
In some embodiments of the present invention, the particle size D50 of the selected nano-magnesia is less than or equal to 100nm, and the particle size D50 of the selected nano-alumina is less than or equal to 80nm.
In some embodiments of the invention, the processing aid is selected from the group consisting of antioxidant 1010, antioxidant 168, and a combination of one or more of the lubricant silicone masterbatches.
In some embodiments of the invention, the mass ratio of the antioxidant 1010, the antioxidant 168, and the lubricant silicone masterbatch is 1:1:2 to 1:1:4.
The invention further provides a preparation method of the B1-grade low-smoke halogen-free cable sheath material, which comprises the following steps: mixing the linear low-density polyethylene resin, the ethylene-octene copolymer, the compatilizer, the flame retardant, the smoke suppression and carbon formation agent and the processing aid, banburying and granulating.
The invention further provides application of the B1-grade low-smoke halogen-free cable sheath material in the field of cables and wires.
Compared with the prior art, the invention has the beneficial effects that:
the B1-grade low-smoke halogen-free cable sheath material prepared by the invention not only has excellent physical and mechanical properties, but also has excellent flame retardant property and low combustion heat value, and can meet the B1-grade requirement of GB/T31247 when applied to cables, thereby being beneficial to popularization and use of B1-grade fireproof cables in fire emergency lines. The invention has simple process route, stable product quality and proper cost, and is suitable for industrial production.
Detailed Description
The inventor provides a B1-level low-smoke halogen-free cable sheath material, a preparation method and application thereof through a large amount of exploring experiments, so that pain points in the industries are solved, the low-smoke halogen-free cable sheath material with low combustion heat value and low heat release rate is manufactured through a special process formula, and huge upgrading of products is realized. On this basis, the present invention has been completed.
In one aspect, the invention provides a B1-grade low-smoke halogen-free cable sheath material, which comprises linear low-density polyethylene resin, ethylene-octene copolymer, compatilizer, flame retardant, smoke suppression and carbon formation agent and processing aid.
In the B1-level low-smoke halogen-free cable sheath material provided by the invention, the raw materials of the B1-level low-smoke halogen-free cable sheath material comprise 16-22% of linear low-density polyethylene resin by mass percent. In some embodiments, the linear low density polyethylene resin may also be 16% to 18% by mass; 18% -20%; or 20% -22% etc. Wherein the linear low density polyethylene resin (LLDPE) has a density of 0.918 to 0.935g/cm 3 . The melt index is 0.1-0.3g/10min (190 ℃,2.16 KG). In some embodiments, the linear low density polyethylene resin (LLDPE) may also have a density of 0.918 to 0.925g/cm 3 Or 0.925-0.935g/cm 3 Etc. The linear low density polyethylene resin (LLDPE) may also have a melt index of 0.1 to 0.2g/10min (190 ℃,2.16 KG); 0.2-0.3g/10min (190 ℃,2.16 KG); 0.1-0.15g/10min (190 ℃,2.16 KG); 0.15-0.2g/10min (190 ℃,2.16 KG); 0.2-0.25g/10min (190 ℃,2.16 KG); or 0.25-0.3g/10min (190 ℃,2.16 KG), etc.
In the B1-level low-smoke halogen-free cable sheath material provided by the invention, raw materials of the B1-level low-smoke halogen-free cable sheath material comprise 5% -10% of ethylene-octene copolymer by mass percent. In some embodiments, the mass percent of the ethylene-octene copolymer may also be 5% -8%;8% -10%;5% -6%;6% -7%;7% -8%;8% -9%; or 9% -10% etc. Wherein the ethylene-octene copolymer (POE) has a density of 0.8 to 0.9g/cm 3 . The melt index is 1-5g/10min (190 ℃,2.16 KG). In some embodiments, the ethylene-octene copolymer (POE) may also have a density of 0.8 to 0.85g/cm 3 Or 0.85-0.9g/cm 3 Etc. The melt index of the ethylene-octene copolymer (POE) may also be 1-2g/10min (190 ℃,2.16 KG); 2-3g/10min (190 ℃,2.16 KG); 3-4g/10min (190 ℃,2.16 KG); 4-5g/10min (190 ℃,2.16 KG); 1-3g/10min (190 ℃,2.16 KG); or 35g/10min (190 ℃,2.16 KG), etc.
In the B1-level low-smoke halogen-free cable sheath material provided by the invention, raw materials of the B1-level low-smoke halogen-free cable sheath material comprise 4-10% of compatilizer by mass percent. In some embodiments, the compatibilizing agent may also be 4% -6% by mass; 6% -8%;8% -10%;4% -7%;7% -10%;4% -5%;5% -6%;6% -7%;7% -8%;8% -9%;9% -10%; or 5% -9% etc. Wherein the compatibilizer may be selected from maleic anhydride grafted POE.
In some embodiments, the maleic anhydride grafting is 0.5% to 1%. The melt index is 1-2g/10min (190 ℃,2.16 KG).
In some embodiments, the maleic anhydride grafting POE may also have a maleic anhydride grafting ratio of 0.5% to 0.8%;0.8% -1%;0.5% -0.6%;0.6% -0.7%;0.7% -0.8%;0.8% -0.9%;0.9% -1.0%; or 0.6% -0.9% and the like. The melt index of the maleic anhydride grafted POE can also be 1-1.5g/10min (190 ℃,2.16 KG); or 1.5-2g/10min (190 ℃ C., 2.16 KG), etc.
In the B1-level low-smoke halogen-free cable sheath material provided by the invention, raw materials of the B1-level low-smoke halogen-free cable sheath material comprise 60-70% of flame retardant in percentage by mass. In some embodiments, the flame retardant may also be 60% -65% by mass; 65% -70%;61% -69%;62% -68%;63% -67%; or 64% -65%, etc. Wherein the flame retardant can be selected from a mixture of aluminum hydroxide and magnesium hydroxide.
Further, the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2:1-3:1. In some embodiments, the mass ratio of aluminum hydroxide to magnesium hydroxide may also be 2:1-2.5:1 or 2.5:1-3:1, etc.
The particle diameter D50 of the selected aluminum hydroxide is 1-3 mu m. In some embodiments, the particle size D50 of the selected aluminum hydroxide may also be 1-2 μm;2-3 μm;1-1.5 μm;1.5-2 μm;2-2.5 μm; or 2.5-3 μm, etc.
The particle diameter D50 of the magnesium hydroxide is 2-4 mu m. In some embodiments, the particle size D50 of the magnesium hydroxide selected may also be 2-3 μm;3-4 μm;2-2.5 μm;2.5-3 μm;3-3.5 μm; or 3.5-4 μm, etc.
In the B1-level low-smoke halogen-free cable sheath material provided by the invention, raw materials of the B1-level low-smoke halogen-free cable sheath material comprise 3% -5% of smoke suppression and carbon formation agents by mass percent. In some embodiments, the smoke suppressing char former may also be 3% -4% by mass; 4% -5%;3% -3.5%;3.5% -4%;4% -4.5%;4.5% -5%; or 3.5% -4.5% etc. Wherein, the smoke suppression and char formation agent can be selected from the mixture of modified montmorillonite, nano magnesium oxide and nano aluminum oxide.
Further, the selected modified montmorillonite is modified by organic quaternary ammonium salt. The modification process may be carried out in a manner known to those skilled in the art.
Further, the grain diameter D50 of the selected nano magnesium oxide is less than or equal to 100nm. In some embodiments, the particle size D50 of the selected nano-magnesia is 0.1-100 nm; 1-100 nm; 0.1-50 nm; 50-100 nm; 0.1-10 nm; 10-20 nm; 20-30 nm; 30-40 nm; 40-50 nm; 50-60 nm; 60-70 nm; 70-80 nm; 80-90 nm; or 90-100 nm, etc.
In some embodiments, the particle size D50 of the selected nano-alumina is less than or equal to 80nm. In some embodiments, the particle size D50 of the selected nano-alumina is 0.1 to 80nm; 1-80 nm; 0.1-50 nm; 50-80 nm; 0.1-10 nm; 10-20 nm; 20-30 nm; 30-40 nm; 40-50 nm; 50-60 nm; 60-70 nm; or 70-80 nm, etc.
In the B1-level low-smoke halogen-free cable sheath material provided by the invention, the raw materials of the B1-level low-smoke halogen-free cable sheath material comprise 1-3% of processing aid by mass percent. In some embodiments, the processing aid may also be 1% -2% by mass; 2% -3%;1% -1.5%;1.5% -2%;2% -2.5%;2.5% -3%; or 1.5% -2.5% etc. Wherein the processing aid may be selected from one or more combinations selected from the group consisting of antioxidant 1010, antioxidant 168, lubricant silicone master batch. The processing aid is preferably selected from the group consisting of antioxidant 1010, antioxidant 168, and a mixture of lubricant silicone masterbatches. The chemical name of the antioxidant 1010 is pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ]. Antioxidant 168 is known under the chemical name tris [ 2.4-di-t-butylphenyl ] phosphite.
Wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 to the lubricant silicone master batch is 1:1:2-1:1:4. In some embodiments, the mass ratio of antioxidant 1010, antioxidant 168, lubricant silicone masterbatch may also be 1:1:2 to 1:1:3; or 1:1:3 to 1:1:4, etc.
In a specific embodiment, the raw materials of the B1-grade low-smoke halogen-free cable sheath material comprise the following components in percentage by mass:
in another aspect, the invention provides a preparation method of the B1-grade low-smoke halogen-free cable sheath material according to the first aspect, which comprises the following steps: mixing the linear low-density polyethylene resin, the ethylene-octene copolymer, the compatilizer, the flame retardant, the smoke suppression and carbon formation agent and the processing aid, banburying and granulating.
In the preparation method of the B1-grade low-smoke halogen-free cable sheath material, specifically, linear low-density polyethylene resin (LLDPE), ethylene-octene copolymer (POE), compatilizer, flame retardant, smoke suppression and char formation agent and processing aid are mixed according to a proportion, and then are put into a high-speed mixer to be mixed uniformly, and then banburying and twin-screw/single-screw granulation are carried out, so that the B1-grade low-smoke halogen-free cable sheath material can be obtained.
In another aspect, the invention provides the use of the class B1 low smoke zero halogen cable sheath material according to the first aspect of the invention in cables.
As described above, the B1-grade low-smoke halogen-free cable sheath material prepared by the invention has the following technical effects:
the B1-grade low-smoke halogen-free cable sheath material prepared by the invention not only has excellent physical and mechanical properties, but also has excellent flame retardant property and low combustion heat value, and can meet the B1-grade requirement of GB/T31247 when applied to cables, thereby being beneficial to popularization and use of B1-grade fireproof cables in fire emergency lines. The invention has simple process route, stable product quality and proper cost, and is suitable for industrial production.
The advantageous effects of the present invention are further illustrated below with reference to examples.
In order to make the objects, technical solutions and advantageous technical effects of the present invention more clear, the present invention is described in further detail below with reference to examples. However, it should be understood that the examples of the present invention are merely for the purpose of explaining the present invention and are not intended to limit the present invention, and the examples of the present invention are not limited to the examples given in the specification. The specific experimental or operating conditions were not noted in the examples and were made under conventional conditions or under conditions recommended by the material suppliers.
Furthermore, it is to be understood that the reference to one or more method steps in this disclosure does not exclude the presence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise indicated; it should also be understood that the combined connection between one or more devices/means mentioned in the present invention does not exclude that other devices/means may also be present before and after the combined device/means or that other devices/means may also be interposed between these two explicitly mentioned devices/means, unless otherwise indicated. Moreover, unless otherwise indicated, the numbering of the method steps is merely a convenient tool for identifying the method steps and is not intended to limit the order of arrangement of the method steps or to limit the scope of the invention in which the invention may be practiced, as such changes or modifications in their relative relationships may be regarded as within the scope of the invention without substantial modification to the technical matter.
In the examples described below, reagents, materials and apparatus used are commercially available unless otherwise specified.
Hereinafter, unless stated otherwise, linear Low Density Polyethylene (LLDPE) was used, and the manufacturer was Exxon Mobil, model 3518CB; ethylene-octene copolymer (POE), manufacturer is dow chemical, model 8480 or 8200; the compatilizer is maleic anhydride grafted POE, and the manufacturer is the Dow chemical and the model is GR216.
The flame retardant is selected from aluminum hydroxide, and the manufacturer is ya Bao in U.S., and the model is OL-104LEO; magnesium hydroxide, the manufacturer is a U.S. Yabao, and the model is H-5;
the modified montmorillonite manufacturer in the smoke suppression and charcoal formation agent is in Yifeng chemical industry, and the model is TY-710C; nano magnesium oxide, the manufacturer is the bright chemical industry; the nanometer alumina is a new crystal material, and the model is VK-L30M. The mass ratio of the modified montmorillonite to the nano magnesium oxide to the nano aluminum oxide is 5:2:1.
The processing aid is selected from the group consisting of antioxidants and lubricants. The antioxidant manufacturer is basf, and the model is 1010/168; antioxidant 1010, antioxidant 168 in a mass ratio of 1:1. the lubricant silicone master batch manufacturer is dakangning and the model is MB50-315.
Example 1
8 kg of LLDPE,3 kg of POE8200,4 kg of compatilizer, 22 kg of aluminum hydroxide, 10 kg of magnesium hydroxide, 2 kg of smoke suppression and char formation agent and 0.5 kg of antioxidant are weighed, 0.5 kg of lubricant is uniformly mixed by a high-speed mixer, and the B1-level low-smoke halogen-free cable sheath material can be obtained through granulation by an internal mixer, a double screw or a single screw.
The obtained material particles of the B1-grade low-smoke halogen-free cable sheath are uniform and smooth in color and luster, and the performance test data are shown in Table 1.
Example 2
9 kg of LLDPE,3 kg of POE8200,2.5 kg of compatilizer, 24 kg of aluminum hydroxide, 8 kg of magnesium hydroxide, 2.5 kg of smoke suppression and char formation agent and 0.5 kg of antioxidant are weighed, 0.5 kg of lubricant is uniformly mixed by a high-speed mixer, and the B1-level low-smoke halogen-free cable sheath material can be obtained through granulation by an internal mixer, a double screw or a single screw.
The obtained material particles of the B1-grade low-smoke halogen-free cable sheath are uniform and smooth in color and luster, and the performance test data are shown in Table 1.
Example 3
9 kg of LLDPE,3 kg of POE8200,2.5 kg of compatilizer, 23 kg of aluminum hydroxide, 10 kg of magnesium hydroxide, 2 kg of smoke suppression and char formation agent and 0.25 kg of antioxidant are weighed, 0.25 kg of lubricant is uniformly mixed by a high-speed mixer, and the B1-level low-smoke halogen-free cable sheath material can be obtained through granulation by an internal mixer, a double screw or a single screw.
The obtained material particles of the B1-grade low-smoke halogen-free cable sheath are uniform and smooth in color and luster, and the performance test data are shown in Table 1.
Example 4
10 kg of LLDPE,4 kg of POE8200,2 kg of compatilizer, 20 kg of aluminum hydroxide, 10 kg of magnesium hydroxide, 2.5 kg of smoke suppression and char formation agent and 0.5 kg of antioxidant are weighed, 1 kg of lubricant is uniformly mixed by a high-speed mixer, and the B1-level low-smoke halogen-free cable sheath material can be obtained through granulation by an internal mixer, a double screw or a single screw.
The obtained material particles of the B1-grade low-smoke halogen-free cable sheath are uniform and smooth in color and luster, and the performance test data are shown in Table 1.
Comparative example 1
8 kg of LLDPE,3 kg of POE8200,4 kg of compatilizer, 23 kg of aluminum hydroxide, 11 kg of magnesium hydroxide and 0.5 kg of antioxidant are weighed, 0.5 kg of lubricant is uniformly mixed by a high-speed mixer, and the B1-level low-smoke halogen-free cable sheath material can be obtained through granulation by an internal mixer, a double screw or a single screw.
The obtained material particles of the B1-grade low-smoke halogen-free cable sheath are uniform and smooth in color and luster, and the performance test data are shown in Table 1.
Comparative example 2
Weighing 11 kg of LLDPE,2 kg of compatilizer, 24 kg of aluminum hydroxide, 10 kg of magnesium hydroxide, 2 kg of smoke suppression and char formation agent and 0.5 kg of antioxidant, uniformly mixing 0.5 kg of lubricant by a high-speed mixer, and granulating by an internal mixer, a double screw or a single screw to obtain the B1-level low-smoke halogen-free cable sheath material.
The obtained material particles of the B1-grade low-smoke halogen-free cable sheath are uniform and smooth in color and luster, and the performance test data are shown in Table 1.
Table 1 results of Performance test of examples and comparative examples (30 KW Heat Source)
As can be seen from the test data in Table 1, the total heat release and the heat release rate are lower than those of the comparative examples, and the two indexes are key indexes of good flame retardant performance, and the elongation at break of the comparative example 2 is only 53%, which is far lower than the minimum 150% required by the national standard, but has no practical application value although the flame retardant performance is good.
The preparation method of the fire-resistant cable comprises the following steps:
selecting 3×25+2×16mm 2 And (3) wrapping 2 layers of 0.4mm thick ceramic composite tapes and 2 layers of 0.25mm thick alkali-free glass fiber tapes on the cable core of the specification, and extruding the B1-level low-smoke halogen-free cable sheath material. The finished cable was tested for burn performance according to the GB/T31248 standard method. The test results are shown in Table 2.
Table 2 results of the burn performance test of each example and comparative example applied to cables
It can be seen from table 2 that the cables produced in examples 1 to 4 all meet the technical requirements of the B1-class cable, and that comparative example 1 has a plurality of indexes which cannot meet the technical requirements of the B1-class cable, and that comparative example 2 has poor mechanical properties and cannot be used for producing the B1-class cable although the combustion performance can meet the technical requirements of the B1-class cable.
The testing method comprises the following steps:
tensile strength test method:
determination of tensile Properties of plastics Using GB/T1040.2-2006 part 2: test conditions for molding and extruding plastics
Test method of elongation at break:
determination of tensile Properties of plastics Using GB/T1040.2-2006 part 2: test conditions for molding and extruding plastics
Test method of limiting oxygen index:
GBT2406-2008 plastic combustion performance test method oxygen index method
UL94 flame retardant test method:
using U.S. UL94 vertical combustion
The combustion performance testing method comprises the following steps:
testing method for flame spreading, heat release and smoke production characteristics of GB/T31248-2014 cable or optical cable under fire condition
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
While the invention has been described with respect to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and additions may be made without departing from the scope of the invention. Equivalent embodiments of the present invention will be apparent to those skilled in the art having the benefit of the teachings disclosed herein, when considered in the light of the foregoing disclosure, and without departing from the spirit and scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the technical solution of the present invention.
Claims (7)
1. The B1-grade low-smoke halogen-free cable sheath material meeting the GB 31247 standard comprises the following raw materials in percentage by mass:
the smoke suppression and char formation agent is selected from the mixture of modified montmorillonite, nano magnesium oxide and nano aluminum oxide;
the selected modified montmorillonite is modified by organic quaternary ammonium salt;
the mass ratio of the modified montmorillonite to the nano magnesium oxide to the nano aluminum oxide is 5:2:1;
the grain diameter D50 of the selected nano magnesium oxide is less than or equal to 100nm, and the grain diameter D50 of the selected nano aluminum oxide is less than or equal to 80nm;
the density of the ethylene-octene copolymer is 0.8-0.9g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The melt index is 1-5g/10min;
the flame retardant is a mixture of aluminum hydroxide and magnesium hydroxide, the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2:1-3:1, and the particle size D50 of the selected aluminum hydroxide is 1-3 mu m; the particle diameter D50 of the magnesium hydroxide is 2-4 mu m.
2. The B1 grade low smoke zero halogen cable sheath material of claim 1, wherein the linear low density polyethylene resin has a density of 0.918-0.935g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The melt index is 0.1-0.3g/10min.
3. The B1 grade low smoke zero halogen cable sheath material according to claim 1, wherein the compatilizer is maleic anhydride grafted POE; the grafting rate of maleic anhydride is 0.5% -1%; the melt index is 1-2g/10min.
4. The B1 grade low smoke zero halogen cable sheath material of claim 1, wherein the processing aid is selected from the group consisting of antioxidant 1010, antioxidant 168, and a combination of one or more of lubricant silicone masterbatch.
5. The B1-grade low-smoke halogen-free cable sheath material according to claim 4, wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 to the lubricant silicone master batch is 1:1:2-1:1:4.
6. A process for preparing a B1-stage low smoke zero halogen cable sheath material according to any one of claims 1 to 5, comprising: mixing the linear low-density polyethylene resin, the ethylene-octene copolymer, the compatilizer, the flame retardant, the smoke suppression and carbon formation agent and the processing aid, banburying and granulating.
7. Use of the B1-grade low smoke zero halogen cable sheath material according to any one of claims 1-5 in the field of cables and wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520918.0A CN112662042B (en) | 2020-12-21 | 2020-12-21 | B1-level low-smoke halogen-free cable sheath material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520918.0A CN112662042B (en) | 2020-12-21 | 2020-12-21 | B1-level low-smoke halogen-free cable sheath material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112662042A CN112662042A (en) | 2021-04-16 |
| CN112662042B true CN112662042B (en) | 2023-06-20 |
Family
ID=75407052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011520918.0A Active CN112662042B (en) | 2020-12-21 | 2020-12-21 | B1-level low-smoke halogen-free cable sheath material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112662042B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113563664A (en) * | 2021-08-23 | 2021-10-29 | 江苏中天科技股份有限公司 | Halogen-free flame-retardant polyethylene sheath material for high-voltage cable and preparation method thereof |
| CN115594911A (en) * | 2022-10-21 | 2023-01-13 | 豪利士电线装配（苏州）有限公司（Cn） | Micro-crosslinking high-flame-retardant B1-grade cable sheath material and preparation method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275385A (en) * | 2013-05-23 | 2013-09-04 | 宝胜科技创新股份有限公司 | Nuclear power halogen-free, low-smoke and flame-retardant cable sheath material with high elongation and long service life and preparation method thereof |
| CN103756119A (en) * | 2013-12-31 | 2014-04-30 | 上海至正道化高分子材料有限公司 | Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof |
| CN106750850A (en) * | 2016-11-24 | 2017-05-31 | 宝胜科技创新股份有限公司 | A kind of oxygen index (OI) thermoplastic halogen-free and low-smoke cable material of polyolefin high and preparation method thereof |
| CN107793631A (en) * | 2017-11-08 | 2018-03-13 | 铁科创恒新材料科技有限公司 | A kind of LSOH anti-flaming EVA splash guards and preparation method thereof |
| CN108164781A (en) * | 2016-12-07 | 2018-06-15 | 上海凯波特种电缆料厂有限公司 | A kind of cotton covered wire LSOH anti-flaming poly-ethylene cable material and preparation method thereof |
| CN108178864A (en) * | 2017-11-24 | 2018-06-19 | 中广核拓普（四川）新材料有限公司 | Height knot carbon type low smoke halogen-free fire retardant polyolefin cable material |
| CN109627567A (en) * | 2018-12-29 | 2019-04-16 | 上海至正道化高分子材料股份有限公司 | A kind of B1 grades of fire-retardant irradiated crosslinking low-smoke and halogen-free insulated cable material and preparation method thereof |
| CN109749199A (en) * | 2018-12-27 | 2019-05-14 | 上海至正道化高分子材料股份有限公司 | A kind of heating cable low-smoke halogen-free flame-retardant sheath material and preparation method thereof |
| CN109762236A (en) * | 2018-12-11 | 2019-05-17 | 上海至正道化高分子材料股份有限公司 | A kind of low-cost and high-performance thermoplastic low-smoke halide-free fireproof composite polyolefine CABLE MATERIALS and preparation method thereof and application thereof |
| CN110938252A (en) * | 2019-11-28 | 2020-03-31 | 江苏上上电缆集团新材料有限公司 | B1-grade stress cracking resistant thermoplastic low-smoke halogen-free cable material and preparation method thereof |
| CN111117054A (en) * | 2019-12-31 | 2020-05-08 | 安徽蒙特尔电缆集团有限公司 | Low-smoke halogen-free flame-retardant B1-grade polyolefin cable sheath material and preparation method thereof |
| CN111234361A (en) * | 2020-03-16 | 2020-06-05 | 山东华凌电缆有限公司 | Thermoplastic halogen-free low-smoke flame-retardant polyolefin cable sheath material and preparation method thereof |
| CN111253672A (en) * | 2020-03-16 | 2020-06-09 | 山东华凌电缆有限公司 | Irradiation crosslinking halogen-free low-smoke flame-retardant polyolefin cable sheath material and preparation method thereof |
| CN111621085A (en) * | 2020-07-04 | 2020-09-04 | 上海方之德新材料有限公司 | B1-grade special high-flame-retardant low-smoke halogen-free cable material and preparation method thereof |
-
2020
- 2020-12-21 CN CN202011520918.0A patent/CN112662042B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275385A (en) * | 2013-05-23 | 2013-09-04 | 宝胜科技创新股份有限公司 | Nuclear power halogen-free, low-smoke and flame-retardant cable sheath material with high elongation and long service life and preparation method thereof |
| CN103756119A (en) * | 2013-12-31 | 2014-04-30 | 上海至正道化高分子材料有限公司 | Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof |
| CN106750850A (en) * | 2016-11-24 | 2017-05-31 | 宝胜科技创新股份有限公司 | A kind of oxygen index (OI) thermoplastic halogen-free and low-smoke cable material of polyolefin high and preparation method thereof |
| CN108164781A (en) * | 2016-12-07 | 2018-06-15 | 上海凯波特种电缆料厂有限公司 | A kind of cotton covered wire LSOH anti-flaming poly-ethylene cable material and preparation method thereof |
| CN107793631A (en) * | 2017-11-08 | 2018-03-13 | 铁科创恒新材料科技有限公司 | A kind of LSOH anti-flaming EVA splash guards and preparation method thereof |
| CN108178864A (en) * | 2017-11-24 | 2018-06-19 | 中广核拓普（四川）新材料有限公司 | Height knot carbon type low smoke halogen-free fire retardant polyolefin cable material |
| CN109762236A (en) * | 2018-12-11 | 2019-05-17 | 上海至正道化高分子材料股份有限公司 | A kind of low-cost and high-performance thermoplastic low-smoke halide-free fireproof composite polyolefine CABLE MATERIALS and preparation method thereof and application thereof |
| CN109749199A (en) * | 2018-12-27 | 2019-05-14 | 上海至正道化高分子材料股份有限公司 | A kind of heating cable low-smoke halogen-free flame-retardant sheath material and preparation method thereof |
| CN109627567A (en) * | 2018-12-29 | 2019-04-16 | 上海至正道化高分子材料股份有限公司 | A kind of B1 grades of fire-retardant irradiated crosslinking low-smoke and halogen-free insulated cable material and preparation method thereof |
| CN110938252A (en) * | 2019-11-28 | 2020-03-31 | 江苏上上电缆集团新材料有限公司 | B1-grade stress cracking resistant thermoplastic low-smoke halogen-free cable material and preparation method thereof |
| CN111117054A (en) * | 2019-12-31 | 2020-05-08 | 安徽蒙特尔电缆集团有限公司 | Low-smoke halogen-free flame-retardant B1-grade polyolefin cable sheath material and preparation method thereof |
| CN111234361A (en) * | 2020-03-16 | 2020-06-05 | 山东华凌电缆有限公司 | Thermoplastic halogen-free low-smoke flame-retardant polyolefin cable sheath material and preparation method thereof |
| CN111253672A (en) * | 2020-03-16 | 2020-06-09 | 山东华凌电缆有限公司 | Irradiation crosslinking halogen-free low-smoke flame-retardant polyolefin cable sheath material and preparation method thereof |
| CN111621085A (en) * | 2020-07-04 | 2020-09-04 | 上海方之德新材料有限公司 | B1-grade special high-flame-retardant low-smoke halogen-free cable material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| LLDPE/TPE二元共混电缆料的制备与性能研究;全祎;《扬州大学硕士学位论文》;20180801;1-84 * |
| 辐照交联低烟无卤阻燃聚烯烃电缆料抗撕性能的研究;包金芳等;《塑料助剂》;20170220(第01期);48-52 * |
| 阻燃剂对低烟无卤聚烯烃电缆料性能的影响;金楷皓等;《绝缘材料》;20200317;第53卷(第03期);1-6 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112662042A (en) | 2021-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109627567A (en) | A kind of B1 grades of fire-retardant irradiated crosslinking low-smoke and halogen-free insulated cable material and preparation method thereof | |
| CN112321934B (en) | Irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin material for 150 ℃ American standard electronic wire and preparation method thereof | |
| CN1133692C (en) | Prepn of fireproofing cable material without halide | |
| CN112662042B (en) | B1-level low-smoke halogen-free cable sheath material and preparation method thereof | |
| CN103881229A (en) | High-flame-retardant and halogen-free polyolefin cable material and preparation method thereof | |
| CN104403181A (en) | Low-smoke halogen-free high-flame-retardant crosslinked polyethylene wire and cable material and preparation method thereof | |
| CN104231409A (en) | EVA/MLLDPE (ethylene-vinyl acetate/metallocene linear low-density polyethylene) component-type low-smoke halogen-free irradiation-crosslinked wire cable material, and preparation method and application thereof | |
| CN1102611C (en) | Halide-free smokeless flame-resistant thermoplatstic polyolefine composition and preparation thereof | |
| CN103804798A (en) | Halogen-free flame retardant polyethylene sheath material applied to super high voltage cable and preparation method and application thereof | |
| CN112759820A (en) | Low-smoke halogen-free flame-retardant polyolefin sheath material for building flame-retardant cable and preparation method thereof | |
| CN103627068A (en) | Low-smoke halogen-free high-flame retardation wire cable material and preparation method thereof | |
| CN104945728A (en) | Low-smoke zero-halogen flame-retardant sheathing material for ultra-high-voltage cable and preparation method of sheathing material | |
| CN111621085A (en) | B1-grade special high-flame-retardant low-smoke halogen-free cable material and preparation method thereof | |
| CN105367965A (en) | Halogen-free flame-retardant ceramic polyolefin cable material for fire-resisting cables and preparation method for halogen-free flame-retardant ceramic polyolefin cable material | |
| CN111378222A (en) | B1Grade flame-retardant 105 ℃ irradiation crosslinking halogen-free low-smoke insulating cable material and preparation method thereof | |
| CN108314829B (en) | Polyolefin cable material and preparation method and application thereof | |
| CN112679837A (en) | B1-grade low-smoke halogen-free cable oxygen insulation material and preparation method thereof | |
| CN110845783A (en) | Low-smoke halogen-free flame-retardant polyolefin wire material for B1-grade wire distribution and preparation method thereof | |
| CN111117054A (en) | Low-smoke halogen-free flame-retardant B1-grade polyolefin cable sheath material and preparation method thereof | |
| WO2021114752A1 (en) | Flame-retardant polyethylene cable material and preparation method therefor | |
| CN108164806A (en) | Locomotive engine cable irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material and preparation method thereof | |
| CN103087394A (en) | LSOH (Low Smoke Zero Halogen) flame-retardant cable material | |
| CN111592711B (en) | Efficient halogen-free flame-retardant EVA material for heat-shrinkable tube and preparation method thereof | |
| CN113213953B (en) | Ceramic polyolefin refractory material with low combustion heat value and preparation method thereof | |
| CN113563663B (en) | Fireproof low-smoke halogen-free soft material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |