CN103435902A - Material for low LSZH (smoke zero halogen) high flame retardance polyolefin sheath for indoor optical cables and preparation method thereof - Google Patents
Material for low LSZH (smoke zero halogen) high flame retardance polyolefin sheath for indoor optical cables and preparation method thereof Download PDFInfo
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- CN103435902A CN103435902A CN2013104162551A CN201310416255A CN103435902A CN 103435902 A CN103435902 A CN 103435902A CN 2013104162551 A CN2013104162551 A CN 2013104162551A CN 201310416255 A CN201310416255 A CN 201310416255A CN 103435902 A CN103435902 A CN 103435902A
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- 239000000779 smoke Substances 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 title claims abstract description 39
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 229910052736 halogen Inorganic materials 0.000 title abstract description 5
- 150000002367 halogens Chemical class 0.000 title abstract description 5
- 230000003287 optical effect Effects 0.000 title abstract 3
- 229920005989 resin Polymers 0.000 claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 55
- 239000003063 flame retardant Substances 0.000 claims abstract description 40
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 26
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 26
- 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 22
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 16
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 4
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 25
- 239000000178 monomer Substances 0.000 claims description 25
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 17
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 15
- 239000003112 inhibitor Substances 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 15
- 238000007254 oxidation reaction Methods 0.000 claims description 15
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 10
- 229920000388 Polyphosphate Polymers 0.000 claims description 10
- 239000013590 bulk material Substances 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- -1 octadecanol ester Chemical class 0.000 claims description 10
- 229940059574 pentaerithrityl Drugs 0.000 claims description 10
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 10
- 239000001205 polyphosphate Substances 0.000 claims description 10
- 235000011176 polyphosphates Nutrition 0.000 claims description 10
- 230000000979 retarding effect Effects 0.000 claims description 6
- FANGQVKSFHFPBY-UHFFFAOYSA-N 2-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound OC(=O)C(C)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 FANGQVKSFHFPBY-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 5
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229920000426 Microplastic Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a material for an LSZH (low smoke zero halogen) high flame retardance polyolefin sheath for indoor optical cables and a preparation method thereof and in particular relates to a polyolefin particle, a raw material of an LSZH high flame retardance sheath layer for manufacturing indoor optical cables and a preparation method thereof. The material is prepared from linear low-density polyethylene resins, an ethylene-octane copolymer elastomer, ethylene vinyl acetate copolymer resins, modified resins, a zero halogen flame retardant, a flame retardant smoke suppressor, an antioxidant, a lubricating agent and the like by steps of mixing the raw materials in a closed mixing mill at 150-165 DEG C and extruding the mixture with a double-screw extruder with six temperature stages. The material not only has high flame retardance and low smoke generation, but also is difficult to ignite, is easy to automatically extinguish, hardly cause fire spread and has low heat release.
Description
Technical field
The present invention relates to a kind of plastic pellet and preparation method thereof.Specifically, be the raw material-----polyolefin particles and preparation method thereof of making the low-smoke bittern-free highly fire-proof restrictive coating that inside cable uses.
Background technology
The flame-proof polyolefine cable material of polyvinyl chloride and use halogen containing flame-retardant, owing to can discharge the obnoxious flavoures such as a large amount of smog and poisonous, mordant hydrogen halide in when burning, environment is produced to very large pollution, and cause " the secondary harm " of fire, strengthened the loss that fire causes.At present a lot of scientific researches confirm, and the infringement that halogenide causes HUMAN HEALTH and environment is more and more serious, and the cry that requires to forbid the Halogen material is more and more higher.At present, it is sheath that inside cable also has more occasion still to adopt polyvinyl chloride, and low-smoke halogen-free flame-retardant sheath material substitutes polyvinyl chloride has become a kind of inexorable trend.Simultaneously, people require also progressively to improve to the fire savety of public place, office buildings, home dwelling, and the fire line of indoor material has been had to higher requirement.Though common low-smoke halide-free fireproof composite polyolefine material has certain flame retardant resistance, it is more easily lighted, and self-extinguishing is poor, easily spreads.
Summary of the invention
The problem that the present invention will solve is to provide a kind of inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material.The present invention not only has high flame retardant and low-smoke, and is difficult to be lighted, and is easy to automatic distinguishing, spreads less, and hot burst size is low.
Another problem that the present invention will solve is to provide a kind of method of inside cable with the low-smoke bittern-free highly fire-proof polyolefin jacket material that prepare.
For addressing the above problem, take following technical scheme:
Inside cable of the present invention is the raw materials that comprise following parts by weight by low-smoke bittern-free highly fire-proof polyolefin jacket material characteristics:
Linear low density polyethylene resin 20 ~ 40 weight parts;
POE elastomerics 5 ~ 10 weight parts;
Ethylene vinyl acetate resin 40 ~ 60 weight parts;
Modified resin 5 ~ 10 weight parts;
Halogen-free flame retardants 40 ~ 65 weight parts;
Fire-proof smoke suppressor 20 ~ 50 weight parts;
Oxidation inhibitor 0.5 ~ 1.0 weight part;
Lubricant 0.2 ~ 0.5 weight part.
Wherein:
Described linear low density polyethylene resin is metallocene PE, and melting index is 1.0 ~ 2.0g/10min;
Described POE elastomerics is the engage8150 type POE elastomerics that U.S. Dupont-Dow elastomerics company produces;
The melting index of described ethylene vinyl acetate resin is 2.0 ~ 3.0g/10min, and wherein, vinyl acetate content is 26 ~ 28%;
Described modified resin is the polar monomer graft thing of ethylene vinyl acetate, it is to carry out graft reaction and the polar monomer graft thing of the ethylene vinyl acetate made with maleic anhydride monomer, in this polar monomer graft thing, the content of maleic anhydride graft monomer is 1.5%;
Described halogen-free flame retardants is complex intumescent flame retardant (containing fire retarding synergist), and described complex intumescent flame retardant is to adopt poly phosphate, tetramethylolmethane, trimeric cyanamide according to poly phosphate: the part by weight of tetramethylolmethane: trimeric cyanamide=1:1:1 mixes;
Described smoke suppressor is aluminium hydroxide or the magnesium hydroxide micro mist that processed through organosilicon or stearic acid on surface;
Described oxidation inhibitor is 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene or β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid;
Described lubricant is polyethylene wax.
Preparing described inside cable is to comprise the following steps successively with the method characteristic of low-smoke bittern-free highly fire-proof polyolefin jacket material:
First linear low density polyethylene resin, POE elastomerics, ethylene vinyl acetate resin, modified resin, halogen-free flame retardants, fire-proof smoke suppressor, oxidation inhibitor are dropped in the closed mixing machine that temperature is 150 ~ 165 ℃ together with lubricant, mixing 10 ~ 15 minutes, obtain the bulk material;
Then, the bulk material is dropped in six temperature section twin screw extruders, extrude into particulate state, obtain inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material; Wherein the temperature of six of six temperature section twin screw extruders temperature sections is respectively 130 ℃, 145 ℃, 160 ℃, 165 ℃, 160 ℃, 160 ℃.
Adopt such scheme, have the following advantages:
(1) adopt dissimilar fluoropolymer resin to cooperatively interact, existing good mechanical electric performance, have again good processing characteristics.
(2) flame retarding efficiency of compound halogen-free flame retardants is high, relatively less addition just can give material high flame retardant resistance, improve greatly the flame retardant resistance of material, make material be difficult to be lighted, after lighting, also be not easy to spread, and be easy to the flame automatic distinguishing, reduce heat release rate, the minimizing of fire retardant addition has also further reduced the decay of material on toughness and mechanical property.
(3) fire-proof smoke suppressor is except the flame retardant resistance of self, also with halogen-free flame retardants, form good cooperative flame retardant effect, further improve the flame retardant properties of material, surface treated fire-proof smoke suppressor and material compatibility are good, and give the amount of being fuming and better smoke-suppressing that material is lower.
In sum, the present invention not only has high flame retardant and low-smoke, and is difficult to be lighted, and is easy to automatic distinguishing, spreads less, and hot burst size is low.
Embodiment
Below in conjunction with embodiment, the present invention is described in further details:
Embodiment mono-
First choose the linear low density polyethylene resin of 20 weight parts, the POE elastomerics of 10 weight parts, the ethylene vinyl acetate resin of 60 weight parts, the modified resin of 10 weight parts, the halogen-free flame retardants of 45 weight parts, the fire-proof smoke suppressor of 50 weight parts, the oxidation inhibitor of 0.5 weight part, the lubricant of 0.2 weight part.
Then, linear low density polyethylene resin, POE elastomerics, ethylene vinyl acetate resin, modified resin, halogen-free flame retardants, fire-proof smoke suppressor, oxidation inhibitor are dropped in the closed mixing machine that temperature is 150 ℃ together with lubricant, mixing 10 minutes, obtain the bulk material.
Finally, the bulk material is dropped in six temperature section twin screw extruders, extrude into particulate state, obtain inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material.Wherein, the temperature of six of six temperature section twin screw extruders temperature sections is respectively 130 ℃, 145 ℃, 160 ℃, 165 ℃, 160 ℃, 160 ℃.
In the present embodiment:
Described linear low density polyethylene resin is metallocene PE, and melting index is 1.0 ~ 2.0g/10min.
Described POE elastomerics is the engage8150 type POE elastomerics that U.S. Dupont-Dow elastomerics company produces;
The melting index of described ethylene vinyl acetate resin is 2.0 ~ 3.0g/10min, and wherein, vinyl acetate content is 26 ~ 28%;
Described modified resin is the polar monomer graft thing of ethylene vinyl acetate, it is to carry out graft reaction and the polar monomer graft thing of the ethylene vinyl acetate made with maleic anhydride monomer, in this polar monomer graft thing, the content of maleic anhydride graft monomer is 1.5%.Described modified resin is the S-26 type modified resin that the rising molecular material company limited of Shanghai day produces;
Described halogen-free flame retardants is complex intumescent flame retardant (containing fire retarding synergist), and described complex intumescent flame retardant is to adopt poly phosphate, tetramethylolmethane, trimeric cyanamide according to poly phosphate: the part by weight of tetramethylolmethane: trimeric cyanamide=1:1:1 mixes;
Described smoke suppressor is aluminium hydroxide or the magnesium hydroxide micro mist that processed through organosilicon or stearic acid on surface.
Described oxidation inhibitor is 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene or β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid;
Described lubricant is polyethylene wax.
Embodiment bis-
First choose the linear low density polyethylene resin of 35 weight parts, the POE elastomerics of 8 weight parts, the ethylene vinyl acetate resin of 50 weight parts, the modified resin of 8 weight parts, the halogen-free flame retardants of 50 weight parts, the fire-proof smoke suppressor of 30 weight parts, the oxidation inhibitor of 0.8 weight part, the lubricant of 0.4 weight part.
Then, linear low density polyethylene resin, POE elastomerics, ethylene vinyl acetate resin, modified resin, halogen-free flame retardants, fire-proof smoke suppressor, oxidation inhibitor are dropped in the closed mixing machine that temperature is 160 ℃ together with lubricant, mixing 13 minutes, obtain the bulk material.
Finally, the bulk material is dropped in six temperature section twin screw extruders, extrude into particulate state, obtain inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material.Wherein, the temperature of six of six temperature section twin screw extruders temperature sections is respectively 130 ℃, 145 ℃, 160 ℃, 165 ℃, 160 ℃, 160 ℃.
In the present embodiment:
Described linear low density polyethylene resin is metallocene PE, and melting index is 1.0 ~ 2.0g/10min.
Described POE elastomerics is the engage8150 type POE elastomerics that U.S. Dupont-Dow elastomerics company produces;
The melting index of described ethylene vinyl acetate resin is 2.0 ~ 3.0g/10min, and wherein, vinyl acetate content is 26 ~ 28%;
Described modified resin is the polar monomer graft thing of ethylene vinyl acetate, it is to carry out graft reaction and the polar monomer graft thing of the ethylene vinyl acetate made with maleic anhydride monomer, in this polar monomer graft thing, the content of maleic anhydride graft monomer is 1.5%.Described modified resin is the S-26 type modified resin that the rising molecular material company limited of Shanghai day produces;
Described halogen-free flame retardants is complex intumescent flame retardant (containing fire retarding synergist), and described complex intumescent flame retardant is to adopt poly phosphate, tetramethylolmethane, trimeric cyanamide according to poly phosphate: the part by weight of tetramethylolmethane: trimeric cyanamide=1:1:1 mixes;
Described smoke suppressor is aluminium hydroxide or the magnesium hydroxide micro mist that processed through organosilicon or stearic acid on surface.
Described oxidation inhibitor is 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene or β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid;
Described lubricant is polyethylene wax.
Embodiment tri-
First choose the linear low density polyethylene resin of 40 weight parts, the POE elastomerics of 5 weight parts, the ethylene vinyl acetate resin of 45 weight parts, the modified resin of 10 weight parts, the halogen-free flame retardants of 65 weight parts, the fire-proof smoke suppressor of 20 weight parts, the oxidation inhibitor of 1.0 weight parts, the lubricant of 0.5 weight part.
Then, linear low density polyethylene resin, POE elastomerics, ethylene vinyl acetate resin, modified resin, halogen-free flame retardants, fire-proof smoke suppressor, oxidation inhibitor are dropped in the closed mixing machine that temperature is 165 ℃ together with lubricant, mixing 15 minutes, obtain the bulk material.
Finally, the bulk material is dropped in six temperature section twin screw extruders, extrude into particulate state, obtain inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material.Wherein, the temperature of six of six temperature section twin screw extruders temperature sections is respectively 130 ℃, 145 ℃, 160 ℃, 165 ℃, 160 ℃, 160 ℃.
In the present embodiment:
Described linear low density polyethylene resin is metallocene PE, and melting index is 1.0 ~ 2.0g/10min.
Described POE elastomerics is the engage8150 type POE elastomerics that U.S. Dupont-Dow elastomerics company produces;
The melting index of described ethylene vinyl acetate resin is 2.0 ~ 3.0g/10min, and wherein, vinyl acetate content is 26 ~ 28%;
Described modified resin is the polar monomer graft thing of ethylene vinyl acetate, it is to carry out graft reaction and the polar monomer graft thing of the ethylene vinyl acetate made with maleic anhydride monomer, in this polar monomer graft thing, the content of maleic anhydride graft monomer is 1.5%.Described modified resin is the S-26 type modified resin that the rising molecular material company limited of Shanghai day produces;
Described halogen-free flame retardants is complex intumescent flame retardant (containing fire retarding synergist), and described complex intumescent flame retardant is to adopt poly phosphate, tetramethylolmethane, trimeric cyanamide according to poly phosphate: the part by weight of tetramethylolmethane: trimeric cyanamide=1:1:1 mixes;
Described smoke suppressor is aluminium hydroxide or the magnesium hydroxide micro mist that processed through organosilicon or stearic acid on surface.
Described oxidation inhibitor is 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene or β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid;
Described lubricant is polyethylene wax.
Claims (10)
1. inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material is characterized in that comprising the raw material of following parts by weight:
Linear low density polyethylene resin 20 ~ 40 weight parts;
POE elastomerics 5 ~ 10 weight parts;
Ethylene vinyl acetate resin 40 ~ 60 weight parts;
Modified resin 5 ~ 10 weight parts;
Halogen-free flame retardants 40 ~ 65 weight parts;
Fire-proof smoke suppressor 20 ~ 50 weight parts;
Oxidation inhibitor 0.5 ~ 1.0 weight part;
Lubricant 0.2 ~ 0.5 weight part.
2. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, is characterized in that described linear low density polyethylene resin is metallocene PE, and melting index is 1.0 ~ 2.0g/10min.
3. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, is characterized in that described POE elastomerics is the engage8150 type POE elastomerics that U.S. Dupont-Dow elastomerics company produces.
4. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, the melting index that it is characterized in that described ethylene vinyl acetate resin is 2.0 ~ 3.0g/10min, wherein, vinyl acetate content is 26 ~ 28%.
5. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, it is characterized in that described modified resin is the polar monomer graft thing of ethylene vinyl acetate, it is to carry out graft reaction and the polar monomer graft thing of the ethylene vinyl acetate made with maleic anhydride monomer, in this polar monomer graft thing, the content of maleic anhydride graft monomer is 1.5%.
6. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, it is characterized in that described halogen-free flame retardants is complex intumescent flame retardant (containing fire retarding synergist), described complex intumescent flame retardant is to adopt poly phosphate, tetramethylolmethane, trimeric cyanamide according to poly phosphate: the part by weight of tetramethylolmethane: trimeric cyanamide=1:1:1 mixes.
7. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, is characterized in that described smoke suppressor aluminium hydroxide or magnesium hydroxide micro mist that to be surface processed through organosilicon or stearic acid.
8. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, is characterized in that described oxidation inhibitor is 1,3,5-trimethylammonium-2,4,6-tri-(3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene or β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid.
9. inside cable as claimed in claim 1 low-smoke bittern-free highly fire-proof polyolefin jacket material, is characterized in that described lubricant is polyethylene wax.
10. prepare the method for the described inside cable of claim 1 with the low-smoke bittern-free highly fire-proof polyolefin jacket material, it is characterized in that comprising the following steps successively:
First linear low density polyethylene resin, POE elastomerics, ethylene vinyl acetate resin, modified resin, halogen-free flame retardants, fire-proof smoke suppressor, oxidation inhibitor are dropped in the closed mixing machine that temperature is 150 ~ 165 ℃ together with lubricant, mixing 10 ~ 15 minutes, obtain the bulk material;
Then, the bulk material is dropped in six temperature section twin screw extruders, extrude into particulate state, obtain inside cable low-smoke bittern-free highly fire-proof polyolefin jacket material; Wherein the temperature of six of six temperature section twin screw extruders temperature sections is respectively 130 ℃, 145 ℃, 160 ℃, 165 ℃, 160 ℃, 160 ℃.
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| CN103897245A (en) * | 2014-03-25 | 2014-07-02 | 江苏科信光电科技有限公司 | Method for preparing anti-crack low-smoke and halogen-free optical cable flame-retardant sheath material |
| CN104513422A (en) * | 2015-01-06 | 2015-04-15 | 江苏领瑞新材料科技有限公司 | Preparation method and test method for anti-cracking low-smoke zero-halogen cable |
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| CN105367886A (en) * | 2015-11-30 | 2016-03-02 | 无锡杰科塑业有限公司 | Heat-resistant halogen-free flame-retardant polyolefin material and preparation method thereof |
| CN105440412B (en) * | 2015-12-21 | 2018-09-07 | 中广核三角洲（苏州）高聚物有限公司 | 125 DEG C of cross-linking radiation high abrasion halogen-free flame retardant insulation materials of thin-wall locomotive cable |
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| CN105926237B (en) * | 2016-05-11 | 2018-09-28 | 浙江欧莱科机电制造有限公司 | A kind of silver ion device for purifier for water used in washing machine |
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| CN107037555A (en) * | 2017-05-17 | 2017-08-11 | 上海美束通信科技有限公司 | Low smoke and zero halogen micro-pipe bundle pipes |
| CN107226950A (en) * | 2017-07-15 | 2017-10-03 | 合肥皖水信息科技有限公司 | A kind of preparation method of black polyethylene communication cable sheath material |
| CN107652527A (en) * | 2017-10-20 | 2018-02-02 | 安徽同利塑胶彩印有限公司 | A kind of halogen-free anti-flaming polyolefin mass and preparation method thereof |
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| 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 |
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Application publication date: 20131211 |