CN110016177A - A kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material and preparation method thereof suitable for 5G optical cable - Google Patents
A kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material and preparation method thereof suitable for 5G optical cable Download PDFInfo
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- CN110016177A CN110016177A CN201910298664.3A CN201910298664A CN110016177A CN 110016177 A CN110016177 A CN 110016177A CN 201910298664 A CN201910298664 A CN 201910298664A CN 110016177 A CN110016177 A CN 110016177A
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- flame retardant
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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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
- C08K2003/2224—Magnesium hydroxide
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention discloses a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath materials and preparation method thereof for being adapted to 5G optical cable.The protective cover material is made of the raw material of following parts by weight: 100 parts of matrix resin, 100-150 parts of compounded mix type fire retardant, 1-2 parts of silane coupling agent, processing aid is polymethyl siloxane and 1-3 parts of polyethylene wax, 0.2-0.5 parts of compound antioxidant, through being kneaded, it squeezes out, it is granulated, it is cooling, screening, packaging step is made, it is agitated, it is kneaded, extrusion step is made, the technical requirements of 5G optical cable are adapted to i.e. in addition to meeting YD/T1113 associated specifications by protective cover material prepared by meticulous formulation selection and processing in the present invention, also require shrinking percentage lower, operating temperature range is wider, it can be worked normally at -40 ~ 90 DEG C, also want resistance to curling, 95 DEG C of high temperature adhesions, it is fire-retardant to cross V0 grades of requirements, these exceed the technical characteristic of existing 4G optical cable.
Description
Technical field
The present invention is to belong to low-smoke halogen-free flame-retardant sheath material preparation technical field, and in particular to a kind of suitable for 5G optical cable
High temperature resistant lower shrinkage Halogen-free flame retardant sheath material and preparation method thereof.
Background technique
Existing 4G optical cable is with low-smoke and halogen-free flame retardant polyolefin jacket material mostly with LLDPE(linear low density polyethylene), it is few
The high density polyethylene of amount cooperates EVA(vinyl-vinyl acetate copolymer) it is main resin base material, it is aided with a small amount of
Interfacial compatibilizer is simultaneously filled with a large amount of inorganic fire retardants (chemically synthesized ultrafine aluminium hydroxide or magnesium hydroxide).It is such
The mass shrinking percentage made is formulated generally 2 ~ 3%, heatproof generally can only be able to satisfy 4G optical cable in 85 DEG C and following work
It is required that but according to 5G optical cable technology condition, protecting sleeve of optical cable should should be able to be worked normally at 100 DEG C, and shrinking percentage is not to be exceeded 1%, no
The optical fiber shrinking percentage in cable jacket can be so caused to bend greatly, this will lead to, and optical attenuation is excessive and transmission rate reduces,
Therefore existing 4G protecting sleeve of optical cable must be improved.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of high temperature resistant lower shrinkages suitable for 5G optical cable
Halogen-free flame retardant sheath material and preparation method thereof.
A kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable contains following component based on parts by weight:
100 parts of hybrid resin, 100-150 parts of packing type fire retardant, 1-2 parts of silane coupling agent, 0.5-2 parts of processing aid, compound antioxygen
0.2-0.5 parts of agent；Described matrix resin includes following component based on parts by weight: 20-40 parts of EVA, high density polyethylene (HDPE)
10-20 parts, 10-30 parts of hydrogenated styrene-butadiene-styrene linear three block copolymer, 5-30 parts of interfacial compatibilizer.
It is that the filled-type fire retardant is the median D50 ultrafine aluminium hydroxide less than 5 μm or ultra-fine as improved
Magnesium hydroxide.
It is that the EVA is copolymerized by ethylene and vinyl acetate, and wherein the weight fraction of vinyl acetate is as improved
18%~ 28%；The fusing point of the high density polyethylene (HDPE) is higher than 130 DEG C, and Vicat softening point is higher than 125 DEG C, and styrene contains in SEBS
Amount is higher than 33%；The interfacial compatibilizer is polyethylene, ethylene and vinyl acetate copolymer, ethylene acrylate copolymer, ethylene
When being squeezed out with one of propylene, butylene, hexene or octene or two kinds of monomer copolymer melt blendings, with maleic anhydride grafting and
At.
It is that the processing aid is the mixture of polymethyl siloxane and polyethylene wax as improved.
It is that the compound antioxidant is that 1:0.7 ~ 1.5 are multiple by primary antioxidant and auxiliary anti-oxidant by weight as improved
With forming；The primary antioxidant is four [β-(3 ', 5 '-di-t-butyls -4 '-hydroxy phenyl) propionic acid] pentaerythritol esters or β -
(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester；Auxiliary anti-oxidant is dilauryl thiodipropionate or thio
The double octadecyls of dipropionic acid.
The preparation method of the above-mentioned high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable, comprising the following steps:
By matrix resin, fire retardant, coupling agent, processing aid and antioxidant according to the ratio under 160-180 DEG C of temperature range through mixing
Secret refining, twin-screw extrusion, flour milling are earnestly granulated, cyclopneumatic separator feeding, then vibrating screen screening is packed.
The utility model has the advantages that
Compared with the prior art, the present invention is adapted to 5G optical cable by protective cover material prepared by meticulous formulation selection and processing
Technical requirements i.e. in addition to meeting YD/T1113 associated specifications, shrinking percentage drops to 1% hereinafter, this is avoided causing to protect from 2-3%
The bending of optical fiber causes optical transport and decays excessive and transmission speed reduction in set.Because using more high density polyethylene
And Hydrogenated SBS, so have higher softening temperature, and the operating temperature range of optical cable can be wider, it can be normal at -40 ~ 100 DEG C
Work, also resistance to curling, 95 DEG C of high temperature adhesions are fire-retardant to cross V0 grades of requirements, these exceed the normal technology characteristic of existing 4G optical cable.
Specific embodiment
Inventive method of the invention is described in detail and is illustrated below with reference to specific example.Its content is to the present invention
Explain protection scope rather than limiting the invention.
Used component is all conventional constituents in following embodiment, is commercially available from the market.
Embodiment 1
By matrix resin, fire retardant, coupling agent, processing aid and antioxidant according to the ratio under 180 DEG C of temperature range through mixing
Secret refining, twin-screw extrusion, flour milling are earnestly granulated, cyclopneumatic separator feeding, then vibrating screen screening is packed.
It is detected to above-mentioned, meets YD/T1113 associated specifications, shrinking percentage 0.8%, this can be to avoid causing optical cable
The bending of sheath inner fiber causes optical transport and decays excessive and transmission speed reduction.Operating temperature is -45 ~ 100 DEG C, also resistance to volume
Song, 95 DEG C of high temperature adhesions are fire-retardant to cross V0 grades of requirements, the normal technology characteristic beyond existing 4G optical cable.
Embodiment 2
Matrix resin, fire retardant, coupling agent, processing aid and antioxidant are passed through under 160 ~ 180 DEG C of temperature range according to the ratio
Mixer mixing, twin-screw extrusion, flour milling are earnestly granulated, cyclopneumatic separator feeding, then vibrating screen screening is packed.
It is detected to above-mentioned, meets YD/T1113 associated specifications, shrinking percentage 0.78%, this can be protected to avoid optical cable
The bending of optical fiber causes optical transport and decays excessive and transmission speed reduction in set.Operating temperature is -40 ~ 100 DEG C of normal works,
Also resistance to curling, 95 DEG C of high temperature adhesions are fire-retardant to cross V0 grades of requirements, the normal technology characteristic beyond existing 4G optical cable.
Embodiment 3
Matrix resin, fire retardant, coupling agent, processing aid and antioxidant are passed through under 160 ~ 180 DEG C of temperature range according to the ratio
Mixer mixing, twin-screw extrusion, flour milling are earnestly granulated, cyclopneumatic separator feeding, then vibrating screen screening is packed.
It is detected to above-mentioned, meets YD/T1113 associated specifications, shrinking percentage 0.88%, this can be to avoid causing light
The bending of cable sheath inner fiber causes optical transport and decays excessive and transmission speed reduction.Operating temperature is -40 ~ 100 DEG C normal
Work, also resistance to curling, 95 DEG C of high temperature adhesions are fire-retardant to cross V0 grades of requirements, the normal technology characteristic beyond existing 4G optical cable.
Comparative example 1
In addition to without SEBS, remaining is the same as embodiment 3.By matrix resin, fire retardant, coupling agent, processing aid and antioxidant by matching
Than through mixer mixing, twin-screw extrusion, flour milling is earnestly granulated, cyclopneumatic separator feeding under 180 DEG C of temperature range, vibration
Then sieve screening is packed.
It is detected to above-mentioned, meets YD/T1113 associated specifications, shrinking percentage 2.1%, this can cause in cable jacket
The bending of optical fiber causes optical transport and decays excessive and transmission speed reduction.Operating temperature is -40 ~ 85 DEG C, though resistance to curling, 95 DEG C
High temperature adhesion, it is fire-retardant to cross V0 grades of requirements.
Comparative example 2
Except without in addition to SEBS, remaining is with embodiment 1, by matrix resin, fire retardant, coupling agent, processing aid and antioxidant by matching
Than through mixer mixing, twin-screw extrusion, flour milling is earnestly granulated, cyclopneumatic separator feeding under 180 DEG C of temperature range, vibration
Then sieve screening is packed.
It is detected to above-mentioned, meets YD/T1113 associated specifications, shrinking percentage 1.7%, this can cause in cable jacket
The bending of optical fiber causes optical transport and decays excessive and transmission speed reduction.Operating temperature is -45 ~ 85 DEG C of normal works, also resistance to
Curling, 95 DEG C of high temperature adhesions are fire-retardant to cross V0 grades of requirements.
In conclusion comparing embodiment 1-3 and comparative example 1-2 is it is found that high density polyethylene of the present invention and Hydrogenated SBS
Synergistic effect, the working performance of protecting sleeve of optical cable is improved, so having higher softening temperature, and operating temperature range is wanted
It is wider, it can be worked normally at -40 ~ 100 DEG C, also resistance to curling, 95 DEG C of high temperature adhesions, it is fire-retardant to cross V0 grades of requirements, exceed existing 4G
The normal technology characteristic of optical cable.
Claims (7)
1. a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable, which is characterized in that contain based on parts by weight
Following component: 100 parts of hybrid resin, 100-150 parts of packing type fire retardant, 1-2 parts of silane coupling agent, 0.5-2 parts of processing aid,
0.2-0.5 parts of compound antioxidant；Described matrix resin includes following component based on parts by weight: 20-40 parts of EVA, high density
10-20 parts of polyethylene, 10-30 parts of hydrogenated styrene-butadiene-styrene linear three block copolymer, interfacial compatibilizer 5-
30 parts.
2. a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable according to claim 1, feature
It is, the filled-type fire retardant is ultrafine aluminium hydroxide or super fine magnesium hydroxide of the median D50 less than 5 μm.
3. a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable according to claim 1, feature
It is, the EVA is copolymerized by ethylene and vinyl acetate, and wherein the weight fraction of vinyl acetate is 18%-28%；It is described highly dense
The fusing point for spending polyethylene is higher than 130 DEG C, and Vicat softening point is higher than 125 DEG C, and the content of styrene is higher than 33% in SEBS；The boundary
Face compatilizer be polyethylene, ethylene vinyl acetate copolymer, ethylene acrylate copolymer, ethylene and propylene, butylene, hexene or
When one of octene or two kinds of monomer copolymer melt blendings squeeze out, it is grafted with maleic anhydride.
4. a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable according to claim 1, feature
It is, the silane coupling agent is the liquid silane containing vinyl and tri-alkoxy.
5. a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable according to claim 1, feature
It is, the processing aid is the mixture of polymethyl siloxane and polyethylene wax.
6. a kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable according to claim 1, feature
It is, the compound antioxidant is that 1:0.7 ~ 1.5 compound with auxiliary anti-oxidant by primary antioxidant by weight；The main antioxygen
Agent is four [β-(3 ', 5 '-di-t-butyls -4 '-hydroxy phenyl) propionic acid] pentaerythritol esters or β-(3,5- di-t-butyl -4- hydroxyl
Base phenyl) propionic acid n-octadecyl alcohol ester；Auxiliary anti-oxidant is dilauryl thiodipropionate or the double octadecyls of thio-2 acid.
7. the preparation side based on the high temperature resistant lower shrinkage Halogen-free flame retardant sheath material suitable for 5G optical cable any in claim 1-6
Method, which comprises the following steps: matrix resin, fire retardant, coupling agent, processing aid and antioxidant exist according to the ratio
Through mixer mixing under 160-180 DEG C of temperature range, twin-screw extrusion, flour milling is earnestly granulated, cyclopneumatic separator feeding, vibration
Then sieve screening is packed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298664.3A CN110016177A (en) | 2019-04-15 | 2019-04-15 | A kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material and preparation method thereof suitable for 5G optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298664.3A CN110016177A (en) | 2019-04-15 | 2019-04-15 | A kind of high temperature resistant lower shrinkage Halogen-free flame retardant sheath material and preparation method thereof suitable for 5G optical cable |
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| CN110016177A true CN110016177A (en) | 2019-07-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063094A (en) * | 2020-09-11 | 2020-12-11 | 江苏领瑞新材料科技有限公司 | Low-smoke halogen-free flame-retardant sheath material for semi-transparent 5G novel optical cable and preparation method thereof |
| CN112592530A (en) * | 2020-11-26 | 2021-04-02 | 金发科技股份有限公司 | Low-shrinkage polyethylene optical cable sheath material and preparation method and application thereof |
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| EP1215238A1 (en) * | 2000-12-12 | 2002-06-19 | Sumitomo Wiring Systems, Ltd. | Fire resistant resin composition and electrical wire having a covering formed of the composition |
| EP1319686A2 (en) * | 2001-12-17 | 2003-06-18 | Sumitomo Wiring Systems, Ltd. | Wear resistant, flame-retardant composition and electric cable covered with said composition |
| CN103804775A (en) * | 2014-03-06 | 2014-05-21 | 福州大学 | Halogen-free flame-retardant polyolefin composite foam material and preparation method thereof |
| CN104650449A (en) * | 2015-02-13 | 2015-05-27 | 深圳市沃尔核材股份有限公司 | Halogen-free and antimony-free flame-retardant cable material with resistant temperature of 125 DEG C and production method of cables |
| CN108485043A (en) * | 2018-02-10 | 2018-09-04 | 深圳市沃尔核材股份有限公司 | A kind of halogen-free environmental high fire-retardance temperature-sensing color-changing material and its application |
-
2019
- 2019-04-15 CN CN201910298664.3A patent/CN110016177A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1215238A1 (en) * | 2000-12-12 | 2002-06-19 | Sumitomo Wiring Systems, Ltd. | Fire resistant resin composition and electrical wire having a covering formed of the composition |
| EP1319686A2 (en) * | 2001-12-17 | 2003-06-18 | Sumitomo Wiring Systems, Ltd. | Wear resistant, flame-retardant composition and electric cable covered with said composition |
| CN103804775A (en) * | 2014-03-06 | 2014-05-21 | 福州大学 | Halogen-free flame-retardant polyolefin composite foam material and preparation method thereof |
| CN104650449A (en) * | 2015-02-13 | 2015-05-27 | 深圳市沃尔核材股份有限公司 | Halogen-free and antimony-free flame-retardant cable material with resistant temperature of 125 DEG C and production method of cables |
| CN108485043A (en) * | 2018-02-10 | 2018-09-04 | 深圳市沃尔核材股份有限公司 | A kind of halogen-free environmental high fire-retardance temperature-sensing color-changing material and its application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063094A (en) * | 2020-09-11 | 2020-12-11 | 江苏领瑞新材料科技有限公司 | Low-smoke halogen-free flame-retardant sheath material for semi-transparent 5G novel optical cable and preparation method thereof |
| CN112592530A (en) * | 2020-11-26 | 2021-04-02 | 金发科技股份有限公司 | Low-shrinkage polyethylene optical cable sheath material and preparation method and application thereof |
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Application publication date: 20190716 |