CN114230889A - High-flame-retardant insect-ant-prevention polyethylene sheath material and preparation method thereof - Google Patents
High-flame-retardant insect-ant-prevention polyethylene sheath material and preparation method thereof Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 83
- -1 polyethylene Polymers 0.000 title claims abstract description 69
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 60
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 60
- 239000000463 material Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims description 14
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 54
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 33
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 33
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 33
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 30
- 239000006084 composite stabilizer Substances 0.000 claims abstract description 30
- 239000012800 wear resistant modifier Substances 0.000 claims abstract description 28
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 19
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 15
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 15
- 239000005011 phenolic resin Substances 0.000 claims abstract description 15
- 241000238631 Hexapoda Species 0.000 claims abstract description 13
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 9
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 9
- 229920001194 natural rubber Polymers 0.000 claims abstract description 9
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 241000256602 Isoptera Species 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229920001684 low density polyethylene Polymers 0.000 claims description 12
- 239000004702 low-density polyethylene Substances 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 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 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 3
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 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
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 abstract description 8
- 150000002367 halogens Chemical class 0.000 abstract description 8
- 241000257303 Hymenoptera Species 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- AZSKHRTUXHLAHS-UHFFFAOYSA-N tris(2,4-di-tert-butylphenyl) phosphate Chemical group CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(=O)(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 AZSKHRTUXHLAHS-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K2003/2293—Oxides; Hydroxides of metals of nickel
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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Abstract
The invention belongs to the technical field of cable sheath material production, and particularly relates to a high-flame-retardant insect-ant-resistant polyethylene sheath material which is prepared from the following raw materials in parts by weight: 80-100 parts of polyethylene, 60-80 parts of flame retardant, 5-8 parts of wear-resistant modifier, 0.5-1 part of antioxidant and 1-2 parts of calcium-zinc composite stabilizer. According to the invention, the wear-resistant modifier composed of styrene butadiene rubber and natural rubber can enhance the wear resistance of the sheathing material, can effectively prevent insects and ants from biting the sheathing material, and improves the protection property of the sheathing material, and the flame retardant prepared from the coated ammonium polyphosphate, the phenolic resin, the light calcium carbonate, the char forming accelerant and the surfactant can efficiently improve the flame retardant property of the sheathing material, wherein no halogen element is added in the flame retardant, so that the environmental pollution in the flame retardant process is small, the substances harmful to human bodies are generated little, the influence on the mechanical property of the matrix is small, and the material can meet the requirements of low smoke and zero halogen.
Description
Technical Field
The invention relates to the technical field of cable sheath material production, in particular to a high-flame-retardant insect and ant prevention polyethylene sheath material and a preparation method thereof.
Background
Along with the development of science and technology, high-quality and high-tech insulating and sheathing materials are developed, together with the rapid development of global economy, the diversity of use occasions is more and more, in order to be suitable for more and more harsh use occasions, polyethylene sheathing materials are mostly adopted at present, and polyethylene is a common thermoplastic plastic with light weight, no toxicity, environmental protection and excellent electrical insulation performance, and is widely applied to the field of wires and cables.
Because former electric wire and cable are mostly PVC goods, PVC goods are poisonous and harmful, and not environmental protection, can release a large amount of poisonous and harmful gas after the burning, and the harm that causes is very big. In order to meet the requirements of low smoke and zero halogen, a large amount of inorganic flame retardant is added into the low smoke zero halogen polyolefin cable, so that the mechanical property of the material is greatly reduced, and the use requirement is met. Therefore, it is needed to develop a high flame retardant polyethylene sheath material for preventing insects and ants, which ensures that the material has good flame retardancy and excellent mechanical properties, and simultaneously enables the material to have excellent wear resistance and can protect the insects and ants.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-flame-retardant anti-termite polyethylene sheath material and a preparation method thereof, and solves the problems that the existing sheath is difficult to realize two requirements of low smoke and zero halogen and has poor wear resistance.
(II) technical scheme
The invention specifically adopts the following technical scheme for realizing the purpose:
the high-flame-retardant anti-termite polyethylene sheath material is prepared from the following raw materials in parts by weight:
80-100 parts of polyethylene, 60-80 parts of a flame retardant, 5-8 parts of a wear-resistant modifier, 0.5-1 part of an antioxidant and 1-2 parts of a calcium-zinc composite stabilizer;
the polyethylene is low-density polyethylene, wherein the melt index of the low-density polyethylene is 1-8 g/l0 min;
the flame retardant is prepared from the following raw materials in parts by weight: 40-60 parts of coated ammonium polyphosphate, 20-30 parts of phenolic resin, 15-20 parts of light calcium carbonate, 3-5 parts of a char forming promoter and 1-3 parts of a surfactant;
the wear-resistant modifier is composed of 2-4 parts of styrene butadiene rubber and 2-4 parts of natural rubber.
Furthermore, the antioxidant is any one of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 2, 6-di-tert-butyl-4-methylphenol and tris (2, 4-di-tert-butylphenyl) phosphite.
Further, the calcium-zinc composite stabilizer is a high-electrical-property calcium-zinc stabilizer, and the calcium-zinc composite stabilizer is a high-insulation and high-Congo red DA-970 produced by Shenzhen Shenxing Yonghui plastic material Co.
Further, the preparation method of the flame retardant specifically comprises the following steps: adding the coated ammonium polyphosphate, the phenolic resin, the calcium carbonate and the char formation promoter into a high-speed mixer, heating to 100-120 ℃, mixing at a high speed of 800-1200 r/min for 3-5 min, adding the surfactant, and continuously mixing at a high speed for 5-8 min to obtain the flame retardant.
Further, the coated ammonium polyphosphate is one of epoxy resin coated ammonium polyphosphate and silane coated ammonium polyphosphate.
Further, the char formation promoter is one of zinc oxide, magnesium oxide, nickel oxide and zinc borate, and the surfactant is polymethylphenylsiloxane.
The invention also provides a preparation method of the high-flame-retardant insect and ant prevention polyethylene sheath material, which comprises the following steps:
step A, weighing polyethylene, a flame retardant, a wear-resistant modifier, an antioxidant and a calcium-zinc composite stabilizer in parts by weight, sequentially adding the weighed polyethylene, the flame retardant, the wear-resistant modifier, the antioxidant and the calcium-zinc composite stabilizer into a high-speed blender, heating to 100-140 ℃, and mixing at a high speed of 800-1200 r/min for 15-25 min;
and step B, finally, extruding and granulating the mixed raw materials through a double-screw extruder to obtain the high-flame-retardant insect-ant-resistant polyethylene sheath material, wherein the screw temperature of the double-screw extruder is as follows: the temperature of the first zone is 100-110 ℃, the temperature of the second zone is 105-110 ℃, the temperature of the third zone is 110-115 ℃, the temperature of the fourth zone is 110-120 ℃ and the temperature of the fifth zone is 115-125 ℃.
(III) advantageous effects
Compared with the prior art, the invention provides the high-flame-retardant insect and ant prevention polyethylene sheath material and the preparation method thereof, and the polyethylene sheath material has the following beneficial effects:
according to the invention, the wear-resistant modifier composed of styrene butadiene rubber and natural rubber can enhance the wear resistance of the sheathing material, can effectively prevent insects and ants from biting the sheathing material, and improves the protection performance of the sheathing material, and the flame retardant prepared from the coated ammonium polyphosphate, the phenolic resin, the light calcium carbonate, the char forming accelerant and the surfactant can efficiently improve the flame retardant performance of the sheathing material, wherein no halogen element is added in the flame retardant, so that the environmental pollution in the flame retardant process is small, the substances harmful to human bodies are generated little, the influence on the mechanical property of the matrix is small, and the material can meet the requirements of low smoke and zero halogen.
Drawings
Fig. 1 is a test chart of a high-flame-retardant termite and termite resistant polyethylene sheath material in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the high-flame-retardant termite-resistant polyethylene sheath material provided by one embodiment of the invention is prepared from the following raw materials in parts by weight:
80 parts of polyethylene, 60 parts of flame retardant, 5 parts of wear-resistant modifier, 0.5 part of antioxidant and 1 part of calcium-zinc composite stabilizer;
the polyethylene is low density polyethylene, wherein the melt index of the low density polyethylene is 5g/l0 min;
the flame retardant is prepared from the following raw materials in parts by weight: 40 parts of coated ammonium polyphosphate, 20 parts of phenolic resin, 15 parts of light calcium carbonate, 3 parts of a char forming promoter and 1 part of a surfactant;
the wear-resistant modifier consists of 2 parts of styrene butadiene rubber and 2 parts of natural rubber.
In some embodiments, the antioxidant is selected from pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
In some embodiments, the calcium-zinc composite stabilizer is a high-electrical-property calcium-zinc stabilizer, and the calcium-zinc composite stabilizer is a high-insulation and high-Congo red DA-970 produced by Shenzhen Shenxing Yonghui plastic material Limited.
In some embodiments, the flame retardant is prepared by a method comprising: adding the coated ammonium polyphosphate, the phenolic resin, the calcium carbonate and the char-forming accelerant into a high-speed mixer, heating to 100 ℃, mixing at a high speed of 800r/min for 3min, adding the surfactant, and continuously mixing at a high speed for 5min to obtain the flame retardant.
In some embodiments, the coated ammonium polyphosphate is one of an epoxy resin coated ammonium polyphosphate and a silane coated ammonium polyphosphate.
In some embodiments, the char-forming promoter is zinc oxide and the surfactant is polymethylphenylsiloxane.
The invention also provides a preparation method of the high-flame-retardant insect and ant prevention polyethylene sheath material, which comprises the following steps:
step A, weighing polyethylene, a flame retardant, a wear-resistant modifier, an antioxidant and a calcium-zinc composite stabilizer in parts by weight, sequentially adding the weighed polyethylene, the flame retardant, the wear-resistant modifier, the antioxidant and the calcium-zinc composite stabilizer into a high-speed blender, heating to 100 ℃, and mixing at a high speed of 800r/min for 15 min;
and step B, finally, extruding and granulating the mixed raw materials through a double-screw extruder to obtain the high-flame-retardant insect-ant-resistant polyethylene sheath material, wherein the screw temperature of the double-screw extruder is as follows: the first zone temperature is 100 ℃, the second zone temperature is 105 ℃, the third zone temperature is 110 ℃, the fourth zone temperature is 110 ℃ and the fifth zone temperature is 115 ℃.
Example 2
As shown in fig. 1, the high-flame-retardant termite-resistant polyethylene sheath material provided by one embodiment of the invention is prepared from the following raw materials in parts by weight:
90 parts of polyethylene, 70 parts of flame retardant, 6 parts of wear-resistant modifier, 0.6 part of antioxidant and 1.2 parts of calcium-zinc composite stabilizer;
the polyethylene is low density polyethylene, wherein the melt index of the low density polyethylene is 6g/l0 min;
the flame retardant is prepared from the following raw materials in parts by weight: 40-60 parts of coated ammonium polyphosphate, 25 parts of phenolic resin, 16 parts of light calcium carbonate, 3.5 parts of a char forming promoter and 1.5 parts of a surfactant;
the wear-resistant modifier consists of 2.5 parts of styrene butadiene rubber and 2.5 parts of natural rubber.
In some embodiments, the antioxidant is stearyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.
In some embodiments, the calcium-zinc composite stabilizer is a high-electrical-property calcium-zinc stabilizer, and the calcium-zinc composite stabilizer is a high-insulation and high-Congo red DA-970 produced by Shenzhen Shenxing Yonghui plastic material Limited.
In some embodiments, the flame retardant is prepared by a method comprising: adding the coated ammonium polyphosphate, the phenolic resin, the calcium carbonate and the char-forming accelerant into a high-speed mixer, heating to 110 ℃, mixing at a high speed of 900r/min for 3.5min, adding the surfactant, and continuously mixing at a high speed for 6min to obtain the flame retardant.
In some embodiments, the coated ammonium polyphosphate is one of an epoxy resin coated ammonium polyphosphate and a silane coated ammonium polyphosphate.
In some embodiments, the char-forming promoter is magnesium oxide and the surfactant is polymethylphenylsiloxane.
The invention also provides a preparation method of the high-flame-retardant insect and ant prevention polyethylene sheath material, which comprises the following steps:
step A, weighing polyethylene, a flame retardant, a wear-resistant modifier, an antioxidant and a calcium-zinc composite stabilizer in parts by weight, sequentially adding the weighed polyethylene, the flame retardant, the wear-resistant modifier, the antioxidant and the calcium-zinc composite stabilizer into a high-speed blender, heating to 120 ℃, and mixing at a high speed of 900r/min for 20 min;
and step B, finally, extruding and granulating the mixed raw materials through a double-screw extruder to obtain the high-flame-retardant insect-ant-resistant polyethylene sheath material, wherein the screw temperature of the double-screw extruder is as follows: the first zone temperature was 105 deg.C, the second zone temperature was 106 deg.C, the third zone temperature was 112 deg.C, the fourth zone temperature was 113 deg.C and the fifth zone temperature was 118 deg.C.
Example 3
As shown in fig. 1, the high-flame-retardant termite-resistant polyethylene sheath material provided by one embodiment of the invention is prepared from the following raw materials in parts by weight:
95 parts of polyethylene, 75 parts of flame retardant, 7 parts of wear-resistant modifier, 0.8 part of antioxidant and 1.8 parts of calcium-zinc composite stabilizer;
the polyethylene is low density polyethylene, wherein the melt index of the low density polyethylene is 7g/l0 min;
the flame retardant is prepared from the following raw materials in parts by weight: 55 parts of coated ammonium polyphosphate, 28 parts of phenolic resin, 18 parts of light calcium carbonate, 4.5 parts of a char forming promoter and 2.5 parts of a surfactant;
the wear-resistant modifier consists of 3.5 parts of styrene butadiene rubber and 3.5 parts of natural rubber.
In some embodiments, the antioxidant is 2, 6-ditert-butyl-4-methylphenol.
In some embodiments, the calcium-zinc composite stabilizer is a high-electrical-property calcium-zinc stabilizer, and the calcium-zinc composite stabilizer is a high-insulation and high-Congo red DA-970 produced by Shenzhen Shenxing Yonghui plastic material Limited.
In some embodiments, the flame retardant is prepared by a method comprising: adding the coated ammonium polyphosphate, the phenolic resin, the calcium carbonate and the char-forming accelerant into a high-speed mixer, heating to 115 ℃, mixing at a high speed of 1100r/min for 4min, adding the surfactant, and continuously mixing at a high speed for 7min to obtain the flame retardant.
In some embodiments, the coated ammonium polyphosphate is one of an epoxy resin coated ammonium polyphosphate and a silane coated ammonium polyphosphate.
In some embodiments, the char-forming promoter is nickel oxide and the surfactant is polymethylphenylsiloxane.
The invention also provides a preparation method of the high-flame-retardant insect and ant prevention polyethylene sheath material, which comprises the following steps:
step A, weighing polyethylene, a flame retardant, a wear-resistant modifier, an antioxidant and a calcium-zinc composite stabilizer in parts by weight, sequentially adding the weighed polyethylene, the flame retardant, the wear-resistant modifier, the antioxidant and the calcium-zinc composite stabilizer into a high-speed blender, heating to 135 ℃, and mixing at a high speed of 1100r/min for 22 min;
and step B, finally, extruding and granulating the mixed raw materials through a double-screw extruder to obtain the high-flame-retardant insect-ant-resistant polyethylene sheath material, wherein the screw temperature of the double-screw extruder is as follows: the first zone temperature is 108 ℃, the second zone temperature is 109 ℃, the third zone temperature is 114 ℃, the fourth zone temperature is 119 ℃ and the fifth zone temperature is 124 ℃.
Example 4
As shown in fig. 1, the high-flame-retardant termite-resistant polyethylene sheath material provided by one embodiment of the invention is prepared from the following raw materials in parts by weight:
100 parts of polyethylene, 80 parts of flame retardant, 8 parts of wear-resistant modifier, 1 part of antioxidant and 2 parts of calcium-zinc composite stabilizer;
the polyethylene is low density polyethylene, wherein the melt index of the low density polyethylene is 8g/l0 min;
the flame retardant is prepared from the following raw materials in parts by weight: 60 parts of coated ammonium polyphosphate, 30 parts of phenolic resin, 20 parts of light calcium carbonate, 5 parts of a char forming promoter and 3 parts of a surfactant;
the wear-resistant modifier consists of 4 parts of styrene butadiene rubber and 4 parts of natural rubber.
In some embodiments, the antioxidant is tris (2, 4-di-tert-butylphenyl) phosphate.
In some embodiments, the calcium-zinc composite stabilizer is a high-electrical-property calcium-zinc stabilizer, and the calcium-zinc composite stabilizer is a high-insulation and high-Congo red DA-970 produced by Shenzhen Shenxing Yonghui plastic material Limited.
In some embodiments, the flame retardant is prepared by a method comprising: adding the coated ammonium polyphosphate, the phenolic resin, the calcium carbonate and the char-forming accelerant into a high-speed mixer, heating to 120 ℃, mixing at a high speed of 1200r/min for 5min, adding the surfactant, and continuously mixing at a high speed for 8min to obtain the flame retardant.
In some embodiments, the coated ammonium polyphosphate is one of an epoxy resin coated ammonium polyphosphate and a silane coated ammonium polyphosphate.
In some embodiments, the char-forming promoter is zinc borate and the surfactant is polymethylphenylsiloxane.
The invention also provides a preparation method of the high-flame-retardant insect and ant prevention polyethylene sheath material, which comprises the following steps:
step A, weighing polyethylene, a flame retardant, a wear-resistant modifier, an antioxidant and a calcium-zinc composite stabilizer in parts by weight, sequentially adding the weighed polyethylene, the flame retardant, the wear-resistant modifier, the antioxidant and the calcium-zinc composite stabilizer into a high-speed blender, heating to 140 ℃, and mixing at a high speed of 1200r/min for 25 min;
and step B, finally, extruding and granulating the mixed raw materials through a double-screw extruder to obtain the high-flame-retardant insect-ant-resistant polyethylene sheath material, wherein the screw temperature of the double-screw extruder is as follows: the first zone temperature is 110 ℃, the second zone temperature is 110 ℃, the third zone temperature is 115 ℃, the fourth zone temperature is 120 ℃ and the fifth zone temperature is 125 ℃.
As can be seen from fig. 1, the flame retardant, wear resistance and strength properties of the high flame retardant and termite resistant polyethylene sheathing material prepared in the embodiments 1 to 4 of the present invention exceed national standards, wherein the flame retardant property is tested according to GA 306.1 standard, the wear resistance is tested according to GB-T2951.11-2008 standard, and the strength property is tested according to ISO9001-2015 standard; the wear-resistant modifier consisting of the styrene butadiene rubber and the natural rubber can enhance the resistance of the sheathing material, can effectively prevent insects and ants from biting the sheathing material and further prolongs the service life of the sheathing incoming material; the flame retardant prepared from the coated ammonium polyphosphate, the phenolic resin, the light calcium carbonate, the char forming accelerant and the surfactant can efficiently improve the flame retardant property of the sheathing material, wherein no halogen element is added in the flame retardant, so that the environment pollution is small in the flame retardant process, substances harmful to human bodies are generated, and the influence on the mechanical property of a base body is small.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The high-flame-retardant insect and ant prevention polyethylene sheath material is characterized in that: the composite material is prepared from the following raw materials in parts by weight:
80-100 parts of polyethylene, 60-80 parts of a flame retardant, 5-8 parts of a wear-resistant modifier, 0.5-1 part of an antioxidant and 1-2 parts of a calcium-zinc composite stabilizer;
the polyethylene is low-density polyethylene, wherein the melt index of the low-density polyethylene is 1-8 g/l0 min;
the flame retardant is prepared from the following raw materials in parts by weight: 40-60 parts of coated ammonium polyphosphate, 20-30 parts of phenolic resin, 15-20 parts of light calcium carbonate, 3-5 parts of a char forming promoter and 1-3 parts of a surfactant;
the wear-resistant modifier is composed of 2-4 parts of styrene butadiene rubber and 2-4 parts of natural rubber.
2. The high-flame-retardant termite-resistant polyethylene sheath material according to claim 1, is characterized in that: the antioxidant is any one of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, 2, 6-di-tert-butyl-4-methylphenol and tri (2, 4-di-tert-butylphenyl) phosphite.
3. The high-flame-retardant termite-resistant polyethylene sheath material according to claim 1, is characterized in that: the calcium-zinc composite stabilizer is a high-electrical-property calcium-zinc stabilizer, and is a high-insulation and high-Congo red DA-970 produced by Shenzhen Shang Yonghui plastic material Limited.
4. The high-flame-retardant termite-resistant polyethylene sheath material according to claim 1, is characterized in that: the preparation method of the flame retardant comprises the following steps: adding the coated ammonium polyphosphate, the phenolic resin, the calcium carbonate and the char formation promoter into a high-speed mixer, heating to 100-120 ℃, mixing at a high speed of 800-1200 r/min for 3-5 min, adding the surfactant, and continuously mixing at a high speed for 5-8 min to obtain the flame retardant.
5. The high-flame-retardant termite-resistant polyethylene sheath material according to claim 1, is characterized in that: the coated ammonium polyphosphate is one of epoxy resin coated ammonium polyphosphate and silane coated ammonium polyphosphate.
6. The high-flame-retardant termite-resistant polyethylene sheath material and the preparation method thereof according to claim 1 are characterized in that: the char-forming accelerant is one of zinc oxide, magnesium oxide, nickel oxide and zinc borate, and the surfactant is polymethylphenylsiloxane.
7. The preparation method of the high flame retardant termite and termite resistant polyethylene sheathing compound according to any one of claims 1 to 6, is characterized in that: the method comprises the following steps:
step A, weighing polyethylene, a flame retardant, a wear-resistant modifier, an antioxidant and a calcium-zinc composite stabilizer in parts by weight, sequentially adding the weighed polyethylene, the flame retardant, the wear-resistant modifier, the antioxidant and the calcium-zinc composite stabilizer into a high-speed blender, heating to 100-140 ℃, and mixing at a high speed of 800-1200 r/min for 15-25 min;
and step B, finally, extruding and granulating the mixed raw materials through a double-screw extruder to obtain the high-flame-retardant insect-ant-resistant polyethylene sheath material, wherein the screw temperature of the double-screw extruder is as follows: the temperature of the first zone is 100-110 ℃, the temperature of the second zone is 105-110 ℃, the temperature of the third zone is 110-115 ℃, the temperature of the fourth zone is 110-120 ℃ and the temperature of the fifth zone is 115-125 ℃.
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Application publication date: 20220325 |