CN105778256A - Ultralow-smoke halogen-free flame-retardant sheath material and preparation method thereof - Google Patents
Ultralow-smoke halogen-free flame-retardant sheath material and preparation method thereof Download PDFInfo
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- CN105778256A CN105778256A CN201610176191.6A CN201610176191A CN105778256A CN 105778256 A CN105778256 A CN 105778256A CN 201610176191 A CN201610176191 A CN 201610176191A CN 105778256 A CN105778256 A CN 105778256A
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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
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier 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
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an ultralow-smoke halogen-free flame-retardant sheath material. The ultralow-smoke halogen-free flame-retardant sheath material is prepared from the ingredients in parts by weight: 8-12 parts of matrix resin A, 8-12 parts of matrix resin B, 4-8 parts of matrix resin C, 4-6 parts of matrix resin D, 54-58 parts of flame retardant, 0.4-1 part of coupling agent, 4-6 parts of compatibilizer, 0.3-0.6 part of antioxidant, 1-3 parts of colorant and 3-4 parts of sun-cured elderberry flowers. According to the ultralow-smoke halogen-free flame-retardant sheath material provided by the invention, during combustion, the volume of smoke is small, the flame smoke density is not greater than 40, and the flameless smoke density is not greater than 80, so that in case of a fire, the ultralow-smoke halogen-free flame-retardant sheath material cannot give out smells which are harmful and pungent to human. Meanwhile, the elderberry flowers are added into the formula, so that the aim of expelling mice in a long term can be achieved.
Description
Technical field
The present invention relates to electric wire polymeric material field, particularly relate to a kind of ultralow cigarette flame-retardant sheath material field.
Background technology
Cable jacket material is a kind of plastic material shielded, and it is mainly for the protection of internal material, it is prevented that its damaged.During for preventing electric wire environment breaking out of fire around, flame spreads to rapidly whole circuit along cable, causes spreading and expanding of flame.Therefore, when making, it should add fire retardant.
Current fire retardant is mainly organic and inorganic, halogen and non-halogen.Organic be representative with compounds such as bromine system, phosphorus nitrogen system, nitrogen system and red phosphorus some fire retardants, inorganic mainly antimony oxide, magnesium hydroxide, aluminium hydroxide, the flame-retardant system such as silicon system.Wherein halogenated flame retardant is few with its addition, flame retardant effect notable and is used widely, and once occupies critical role in fire retardant polyolefin cable application.But this type of Halogen flame-retardant cable amount of being fuming when burning is big, can produce macro-corrosion gas and toxic gas, give fire extinguishing, flees from and resume work and bring very big difficulty, and cause secondary to endanger.Therefore, low-smoke non-halogen flame-retardant agent should be selected to be applied on cable.
Existing cable jacket material, when burning, all can produce niff, human body is damaged, and it has flame smoke density, nonflame smoke density can be up to state standards reluctantly, there is wretched insufficiency.
Summary of the invention
For solving problem above, the present invention provides a kind of super this protective cover material of low smoke halogen-free flame-retardant sheath material to include the composition of following weight portion:
Matrix resin A8 ~ 12 part
Matrix resin B8 ~ 12 part
Matrix resin C4 ~ 8 part
Matrix resin D4 ~ 6 part
Fire retardant 54 ~ 58 parts
Coupling agent 0.4 ~ 1 part
Compatilizer 4 ~ 6 parts
0.3 ~ 0.6 part of antioxidant
Coloring agent 1 ~ 3 part
Above-mentioned matrix resin A and matrix resin B is EVA, and wherein the VA content in matrix resin A is 28%, and the VA content in matrix resin B is 40%；Above-mentioned matrix resin C is POE；Above-mentioned matrix resin D is PE.
It is also preferred that the left above-mentioned fire retardant is magnesium hydroxide, magnesium hydroxide is at nonflame with when having flame, and smoke density produced by it is less than smoke density produced by aluminium hydroxide.
It is also preferred that the left above-mentioned compatilizer is for connecing material extrusion；Above-mentioned coupling agent is silane coupler.
It is also preferred that the left also include the flower of 3 ~ 4 parts of Ramulus Sambuci Williamsii grass dried, Ramulus Sambuci Williamsii grass can give out a kind of the abnormal smells from the patient that mouse is poisonous, this abnormal smells from the patient is distributed by spending, therefore the flower of Ramulus Sambuci Williamsii grass has the effect of rat destruction, and the abnormal smells from the patient of Ramulus Sambuci Williamsii grass is non-toxic to humans, can reach the effect of asepsis environment-protecting.
Preferably, the ratio of the deal of above-mentioned matrix resin A and matrix resin B is 1:1, and during purchase, directly can buy VA content from market is the EVA of 28%, it is the EVA of 40% with VA content, the two can be allocated according to the ratio of 1:1 when producing and make the EVA that VA content is 34%.
The preparation method of super low smoke halogen-free flame-retardant sheath material comprises the following steps:
(1) proportionally weigh the flower of the Ramulus Sambuci Williamsii grass dried, put in grinding and crushing machine, repeatedly grind, until it is Powdered；
(2) matrix resin A, matrix resin B, matrix resin C, matrix resin D, fire retardant, coupling agent, compatilizer, antioxidant, coloring agent are proportionally weighed；
(3) article of above-mentioned weighing being put into batch mixing together that carry out 4 ~ 8min in high speed mixer, it together inserts banbury 8 ~ 12min subsequently, wherein banbury kerve temperature is 140 ~ 150 DEG C, and upper bath temperature degree is 120 ~ 135 DEG C；
(4) by the material after banburying, put in feeding machine, by after twin-screw extrusion then through Single screw extrusion, carry out pelletizing cooling subsequently；Wherein the spout temperature of twin screw is 110 ~ 130 DEG C, and one has 6 districts, and every district promotes 5 DEG C successively, and the spout temperature of single screw rod is 120 ~ 135 DEG C, and totally 5 districts, every district promotes 3 DEG C successively.
This super this protective cover material of low smoke halogen-free flame-retardant sheath material provided by the invention, when burning, the amount of being fuming is little, has flame smoke density≤40, nonflame smoke density≤80, this super low smoke halogen-free flame-retardant sheath material, will not give out harmful and pungent taste when a fire.In formula, matrix resin A and matrix resin B selects the EVA that can be directly commercially available, manufacturing process weighs corresponding deal according to the ratio of 1:1 and obtains the EVA that VA content is 34%, manufacturing process is put in high speed mixer, banbury after being weighed by all the components to be sufficiently mixed；In existing technology, when making, it is necessary to first weighing VA content is the EVA of special value, and the EVA in major part formula cannot directly be commercially available, it is therefore desirable to first carries out proportioning stirring, together mixes with other compositions more subsequently；And the preparation method of this super low smoke halogen-free this protective cover material of flame-retardant sheath material provided by the invention, relatively conventional preparation method, save one of them step, saved the time, improve production efficiency.Meanwhile, in formula add Ramulus Sambuci Williamsii grass flower, can be used for rat destruction, it is not only simply by reaching with taste to stimulate the purpose driveing mouse, and its abnormal smells from the patient is poisonous for mouse so that mouse fear and dare not be close.In prior art, using essence rat destruction, of long duration, essence taste is produced immunity by viral marketing, thus the cable made by this kind of essence can only reach rat destruction purpose in early stage, and this super this protective cover material of low smoke halogen-free flame-retardant sheath material provided by the invention can reach long-term rat destruction purpose.
Detailed description of the invention
Embodiment one
A kind of super low smoke halogen-free flame-retardant sheath material, including the composition of following weight portion:
Matrix resin A9 part
Matrix resin B9 part
POE6 part
PE5 part
56 parts of magnesium hydroxide
Silane coupler 0.5 part
Grafted material 4 parts
0.4 part of antioxidant
Black masterbatch 2 parts
What Ramulus Sambuci Williamsii was careless spends 3 parts
Above-mentioned matrix resin A and matrix resin B is EVA, and wherein the VA content in matrix resin A is 28%, and the VA content in matrix resin B is 40%, and POE selects Tao Shi 8150.
During preparation, in accordance with the following steps:
(1) proportionally weigh the flower of the Ramulus Sambuci Williamsii grass dried, put in grinding and crushing machine, repeatedly grind, until it is Powdered；
(2) matrix resin A, matrix resin B, matrix resin C, matrix resin D, fire retardant, coupling agent, compatilizer, antioxidant, coloring agent are proportionally weighed；
(3) article of above-mentioned weighing being put into batch mixing together that carry out 4 ~ 8min in high speed mixer, it together inserts banbury 8 ~ 12min subsequently, wherein banbury kerve temperature is 140 ~ 150 DEG C, and upper bath temperature degree is 120 ~ 135 DEG C；
(4) by the material after banburying, put in feeding machine, by after twin-screw extrusion then through Single screw extrusion, carry out pelletizing cooling subsequently；Wherein the spout temperature of twin screw is 110 ~ 130 DEG C, and one has 6 districts, and every district promotes 5 DEG C successively, and the spout temperature of single screw rod is 120 ~ 135 DEG C, and totally 5 districts, every district promotes 3 DEG C successively.
Embodiment two
A kind of super low smoke halogen-free flame-retardant sheath material, including the composition of following weight portion:
Matrix resin A10 part
Matrix resin B10 part
POE6 part
PE5 part
58 parts of magnesium hydroxide
Silane coupler 0.6 part
Grafted material 5 parts
0.5 part of antioxidant
Black masterbatch 2 parts
What Ramulus Sambuci Williamsii was careless spends 4 parts
Above-mentioned matrix resin A and matrix resin B is EVA, and wherein the VA content in matrix resin A is 28%, and the VA content in matrix resin B is 40%, and PE selects Exxon 31518CB.Its technological process is with reference to the preparation flow in embodiment one.
In order to prove technical key point further, the present invention devises series of experiments and is verified.
Table 1: the embodiment of the present invention one, embodiment two test result
Being can be seen that by table 1, embodiment one and the super low smoke halogen-free flame-retardant sheath material in embodiment two have good fire resistance, and the smoke density after its burning is low, has the performance of ultralow cigarette.
And for the against murine performance test of embodiment one with the super low smoke halogen-free flame-retardant sheath material in embodiment two, then comparative selection test is verified.Test procedure is as follows:
(1) material of the material of contrast test one, contrast test two is made respectively.The material prescription of contrast test one is not except containing the flower of 3 parts of Ramulus Sambuci Williamsii grass, and all the other compositions and deal are all identical with the composition in embodiment one, deal.The material prescription of contrast test two is not except containing the flower of 4 points of Ramulus Sambuci Williamsii grass, and all the other compositions and deal are all identical with the composition in embodiment two, deal.
(2) material of the protective cover material in embodiment one Yu contrast test one is collectively disposed in an experiment box, puts into 20 mouse, carry out the observation of 15 days, and do once record every day；The material of the protective cover material in embodiment two Yu contrast test two is collectively disposed in another one experiment box, puts into 20 mouse, carry out 15 days observing, and do once record every day.
After (3) 15 days, take out these test shield material respectively, check bite mark thereon, and keep a record.
Table two: the embodiment of the present invention one, contrast test one, embodiment two, contrast test two test result
As from the foregoing, just start in 8 days, go to bait before having mouse, but bait without mouse again after 8 days, because mouse just starts not know there is rat destruction material in protective cover material, no longer it is ready to bait this protective cover material with rat destruction material after 8 days, it can be seen that this super low smoke halogen-free flame-retardant sheath material against murine performance provided by the invention is good.
These are only preferred embodiment of the present invention, therefore can not limit scope of the invention process according to this, the equivalence namely made according to description of the present invention changes and decoration, all should belong in the scope that the present invention covers.
Claims (6)
1. a super low smoke halogen-free flame-retardant sheath material, it is characterised in that this protective cover material includes the composition of following weight portion:
Matrix resin A8 ~ 12 part
Matrix resin B8 ~ 12 part
Matrix resin C4 ~ 8 part
Matrix resin D4 ~ 6 part
Fire retardant 54 ~ 58 parts
Coupling agent 0.4 ~ 1 part
Compatilizer 4 ~ 6 parts
0.3 ~ 0.6 part of antioxidant
Coloring agent 1 ~ 3 part
Above-mentioned matrix resin A and matrix resin B is EVA, and wherein the VA content in matrix resin A is 28%, and the VA content in matrix resin B is 40%；Above-mentioned matrix resin C is POE；Above-mentioned matrix resin D is PE.
2. the super low smoke halogen-free flame-retardant sheath material according to claim 1, it is characterised in that above-mentioned fire retardant is magnesium hydroxide.
3. the super low smoke halogen-free flame-retardant sheath material according to claim 1, it is characterised in that above-mentioned compatilizer is for connecing material extrusion；Above-mentioned coupling agent is silane coupler.
4. the super low smoke halogen-free flame-retardant sheath material according to claim 1, it is characterised in that also include the flower of 3 ~ 4 parts of Ramulus Sambuci Williamsii grass dried.
5. the super low smoke halogen-free flame-retardant sheath material according to claim 1, it is characterised in that the ratio of the deal of above-mentioned matrix resin A and matrix resin B is 1:1.
6. the preparation method of the super low smoke halogen-free flame-retardant sheath material according to claim 1, it is characterised in that comprise the following steps:
(1) proportionally weigh the flower of the Ramulus Sambuci Williamsii grass dried, put in grinding and crushing machine, repeatedly grind, until it is Powdered；
(2) matrix resin A, matrix resin B, matrix resin C, matrix resin D, fire retardant, coupling agent, compatilizer, antioxidant, coloring agent are proportionally weighed；
(3) article of above-mentioned weighing being put into batch mixing together that carry out 4 ~ 8min in high speed mixer, it together inserts banbury 8 ~ 12min subsequently, wherein banbury kerve temperature is 140 ~ 150 DEG C, and upper bath temperature degree is 120 ~ 135 DEG C；
(4) by the material after banburying, put in feeding machine, by after twin-screw extrusion then through Single screw extrusion, carry out pelletizing cooling subsequently；Wherein the spout temperature of twin screw is 110 ~ 130 DEG C, and one has 6 districts, and every district promotes 5 DEG C successively, and the spout temperature of single screw rod is 120 ~ 135 DEG C, and totally 5 districts, every district promotes 3 DEG C successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610176191.6A CN105778256A (en) | 2016-03-26 | 2016-03-26 | Ultralow-smoke halogen-free flame-retardant sheath material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610176191.6A CN105778256A (en) | 2016-03-26 | 2016-03-26 | Ultralow-smoke halogen-free flame-retardant sheath material and preparation method thereof |
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| CN105778256A true CN105778256A (en) | 2016-07-20 |
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Application publication date: 20160720 |