CN105315597A - Environmental-protection fire-retardant communication electric cable sheath material - Google Patents
Environmental-protection fire-retardant communication electric cable sheath material Download PDFInfo
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- CN105315597A CN105315597A CN201410233118.9A CN201410233118A CN105315597A CN 105315597 A CN105315597 A CN 105315597A CN 201410233118 A CN201410233118 A CN 201410233118A CN 105315597 A CN105315597 A CN 105315597A
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Abstract
The present invention discloses an environmental-protection fire-retardant communication electric cable sheath material, wherein the raw materials comprise, by weight, 40-50 parts of a maleic anhydride grafted ethylene-vinyl acetate copolymer, 10-15 parts of an ethylene-vinyl acetate copolymer, 20-25 parts of low density polyethylene, 40-60 parts of modified magnesium hydroxide, 1-1.5 parts of a lubricant, and 2-5 parts of an antioxidant. The preparation process comprises: carrying out mixing melting of a maleic anhydride grafted ethylene-vinyl acetate copolymer, an ethylene-vinyl acetate copolymer, low density polyethylene and an antioxidant in a twin-roller open mill at a mixing temperature of 130 DEG C, adding modified magnesium hydroxide and a lubricant, mixing for 20 min, discharging the sheet from the twin-roller open mill, placing into a flat plate vulcanizing machine, and pressing to obtain the environmental-protection fire-retardant communication electric cable sheath material. According to the present invention, the environmental-protection fire-retardant communication electric cable sheath material has the excellent flame retardant effect, and can not produce a lot of harmful gases and smoke during combustion so as to protect the environment and the human health.
Description
Technical field
The present invention relates to cable sheath technical field, particularly relate to a kind of environmental protection flame retardant communication cable sheath material.
Background technology
Along with the develop rapidly of China's communications industry, as artery and the blood vessel of signal conveying, the demand of communication cable also grows with each passing day.In the communication cable of various insulating forms, crosslinked polyetylene insulated communication cable be one show up prominently, flourish new army.And along with the reinforcement of people to environmental consciousness and the appearance of environmental regulation, there is Halogen, the macromolecular material Non-halogen Flame Retardant Technology of low cigarette characteristic will progressively replace halogen flame-retarded technology.For a long time, in electric wire and cable material, the consumption of polyvinyl chloride (PVC) account for 80% nearly.Due in PVC cable material containing the harmful heavy metal such as lead, tin, barium, and PVC can produce in combustion and has the gas such as toxicity and corrosive hydrogenchloride and violent dense smoke, easily causes a large amount of loss of life and personal injury and the damage of precision instrument in a fire.Therefore, the developed countries such as Europe and Japan have formulated the new standard of cable in succession, and the particularly use of the halide-containings such as strict restriction PVC in RoHS instruction, people transfer to study crosslinked polyetylene insulated communication cable, improve its flame retardant properties.
Summary of the invention
The technical problem that basic background technology exists, the present invention proposes a kind of environmental protection flame retardant communication cable sheath material, has excellent flame retardant effect, can not produce a large amount of obnoxious flavour and smog, protection of the environment and HUMAN HEALTH in burning.
A kind of environmental protection flame retardant communication cable sheath material that the present invention proposes, its raw material comprises by weight: maleic anhydride graft second is rare-and vinyl acetate copolymer 40-50 part, second is rare-acetic acid second rare ester copolymer 10-15 part, Low Density Polyethylene 20-25 part, modified magnesium hydroxide 40-60 part, lubricant 1-1.5 part, oxidation inhibitor 2-5 part; First by rare to rare for maleic anhydride graft second-vinyl acetate copolymer, the second-rare ester copolymer of acetic acid second, Low Density Polyethylene and oxidation inhibitor mixing melting in two roller mill, melting temperature is 125-135 DEG C, then after adding modified magnesium hydroxide and the mixing 15-25min of lubricant, slice from two roller mill, is then placed in vulcanizing press compacting and obtains environmental protection flame retardant communication cable sheath material.
In specific embodiment, maleic anhydride graft second is rare-and the weight part of vinyl acetate copolymer can be 40 parts, 42 parts, 43 parts, 45 parts, 46 parts, 47 parts, 48 parts, 50 parts, second is rare-and the weight part of the rare ester copolymer of acetic acid second can be 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, the weight part of Low Density Polyethylene can be 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, the weight part of modified magnesium hydroxide can be 40 parts, 43 parts, 47 parts, 50 parts, 53 parts, 55 parts, 60 parts, the weight part of lubricant can be 1 part, 1.1 part, 1.2 part, 1.3 part, 1.4 part, 1.5 part, the weight part of oxidation inhibitor can be 2 parts, 3 parts, 4 parts, 5 parts.
Preferably, modified magnesium hydroxide is made up of the magnesium hydroxide through surface modifying agent and the magnesium hydroxide through anion surfactant modification.
Preferably, lubricant is stearic acid or oleic acid.
Preferably, oxidation inhibitor is made up of tetramethylolmethane-four-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) ester and phosphorous acid ester.
In the present invention, adopt maleic anhydride graft second rare-vinyl acetate copolymer and second rare-the rare ester copolymer of acetic acid second is major ingredient, make excellent fireproof performance of the present invention, and add Low Density Polyethylene, can coordinate by-vinyl acetate copolymer rare with maleic anhydride graft second, significantly improve temperature capacity of the present invention, and modified magnesium hydroxide and above-mentioned three kinds of material combined action, further lifting flame retardant resistance of the present invention, also discharge Bound moisture by during decomposes, absorb a large amount of heat energy, reduce the surface temperature of the present invention in flame, the smog produced that burns can also be suppressed.Do not adopt halohydrocarbon in the present invention, make the present invention can not produce a large amount of obnoxious flavoures in burning, protection of the environment and HUMAN HEALTH.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of environmental protection flame retardant communication cable sheath material that the present invention proposes, its raw material comprises by weight: maleic anhydride graft second is rare-and vinyl acetate copolymer 40 parts, second is rare-the rare ester copolymer of acetic acid second 15 parts, Low Density Polyethylene 20 parts, modified magnesium hydroxide 60 parts, lubricant 1 part, 5 parts, oxidation inhibitor is first by rare for maleic anhydride graft second-vinyl acetate copolymer, second is rare-the rare ester copolymer of acetic acid second, Low Density Polyethylene and oxidation inhibitor mixing melting in two roller mill, melting temperature is 125 DEG C, then after adding modified magnesium hydroxide and the mixing 25min of lubricant, slice from two roller mill, then be placed in vulcanizing press compacting and obtain environmental protection flame retardant communication cable sheath material.
Embodiment 2
A kind of environmental protection flame retardant communication cable sheath material that the present invention proposes, its raw material comprises by weight: maleic anhydride graft second is rare-and vinyl acetate copolymer 50 parts, second is rare-the rare ester copolymer of acetic acid second 10 parts, Low Density Polyethylene 25 parts, modified magnesium hydroxide 40 parts, lubricant 1.5 parts, 2 parts, oxidation inhibitor; First by rare to rare for maleic anhydride graft second-vinyl acetate copolymer, the second-rare ester copolymer of acetic acid second, Low Density Polyethylene and oxidation inhibitor mixing melting in two roller mill, melting temperature is 135 DEG C, then after adding modified magnesium hydroxide and the mixing 15min of lubricant, slice from two roller mill, is then placed in vulcanizing press compacting and obtains environmental protection flame retardant communication cable sheath material.
Embodiment 3
A kind of environmental protection flame retardant communication cable sheath material that the present invention proposes, its raw material comprises by weight: maleic anhydride graft second is rare-and vinyl acetate copolymer 42 parts, second is rare-the rare ester copolymer of acetic acid second 14 parts, Low Density Polyethylene 22 parts, modified magnesium hydroxide 55 parts, oleic acid 1.1 parts, 4 parts, oxidation inhibitor, wherein modified magnesium hydroxide is made up of the magnesium hydroxide through surface modifying agent and the magnesium hydroxide through anion surfactant modification, oxidation inhibitor is made up of tetramethylolmethane-four-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) ester and phosphorous acid ester; First by rare to rare for maleic anhydride graft second-vinyl acetate copolymer, the second-rare ester copolymer of acetic acid second, Low Density Polyethylene and oxidation inhibitor mixing melting in two roller mill, melting temperature is 127 DEG C, then after adding modified magnesium hydroxide and the mixing 23min of lubricant, slice from two roller mill, is then placed in vulcanizing press compacting and obtains environmental protection flame retardant communication cable sheath material.
Embodiment 4
A kind of environmental protection flame retardant communication cable sheath material that the present invention proposes, its raw material comprises by weight: maleic anhydride graft second is rare-and vinyl acetate copolymer 46 parts, second is rare-the rare ester copolymer of acetic acid second 12 parts, Low Density Polyethylene 24 parts, modified magnesium hydroxide 50 parts, stearic acid 1.3 parts, 3 parts, oxidation inhibitor, wherein modified magnesium hydroxide is made up of the magnesium hydroxide through surface modifying agent and the magnesium hydroxide through anion surfactant modification, oxidation inhibitor is by tetramethylolmethane-four-(3-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid) ester and phosphorous acid ester form, first by rare to rare for maleic anhydride graft second-vinyl acetate copolymer, the second-rare ester copolymer of acetic acid second, Low Density Polyethylene and oxidation inhibitor mixing melting in two roller mill, melting temperature is 133 DEG C, then after adding modified magnesium hydroxide and the mixing 17min of lubricant, slice from two roller mill, is then placed in vulcanizing press compacting and obtains environmental protection flame retardant communication cable sheath material.
Carry out performance test to the sheath material of embodiment 1-4 gained, result is as follows:
| Test event | National standard | Embodiment 1-4 test result mean value |
| Oxygen index | GB2406-80 | 41.9 |
| Horizontal vertical is burnt | GB/T2408-1996 | FH-1 |
| Tensile strength | GB/T1040-92 | 11.1MPa |
| Elongation at break | GB/T1040-92 | 152％ |
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. an environmental protection flame retardant communication cable sheath material, it is characterized in that, its raw material comprises by weight: maleic anhydride graft second is rare-and vinyl acetate copolymer 40-50 part, second is rare-acetic acid second rare ester copolymer 10-15 part, Low Density Polyethylene 20-25 part, modified magnesium hydroxide 40-60 part, lubricant 1-1.5 part, oxidation inhibitor 2-5 part; First by rare to rare for maleic anhydride graft second-vinyl acetate copolymer, the second-rare ester copolymer of acetic acid second, Low Density Polyethylene and oxidation inhibitor mixing melting in two roller mill, melting temperature is 125-135 DEG C, then after adding modified magnesium hydroxide and the mixing 15-25min of lubricant, slice from two roller mill, is then placed in vulcanizing press compacting and obtains environmental protection flame retardant communication cable sheath material.
2. environmental protection flame retardant communication cable sheath material according to claim 1, is characterized in that, modified magnesium hydroxide is made up of the magnesium hydroxide through surface modifying agent and the magnesium hydroxide through anion surfactant modification.
3. environmental protection flame retardant communication cable sheath material according to claim 1, is characterized in that, lubricant is stearic acid or oleic acid.
4. environmental protection flame retardant communication cable sheath material according to claim 1, is characterized in that, oxidation inhibitor is made up of tetramethylolmethane-four-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) ester and phosphorous acid ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410233118.9A CN105315597A (en) | 2014-05-28 | 2014-05-28 | Environmental-protection fire-retardant communication electric cable sheath material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410233118.9A CN105315597A (en) | 2014-05-28 | 2014-05-28 | Environmental-protection fire-retardant communication electric cable sheath material |
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| Publication Number | Publication Date |
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| CN105315597A true CN105315597A (en) | 2016-02-10 |
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| CN201410233118.9A Pending CN105315597A (en) | 2014-05-28 | 2014-05-28 | Environmental-protection fire-retardant communication electric cable sheath material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101608032A (en) * | 2008-06-20 | 2009-12-23 | 苏州亨利通信材料有限公司 | Environmental-friendly halogen-free low-smoke flame retardant material for coaxial cable and preparation method thereof |
| CN102731891A (en) * | 2012-06-20 | 2012-10-17 | 苏州德尔泰高聚物有限公司 | Thermoplastic oil-resistant halogen-free low-smoke flame-retardant polyolefin cable material and preparation method thereof |
| CN103172918A (en) * | 2011-12-22 | 2013-06-26 | 上海杰事杰新材料(集团)股份有限公司 | Low-smoke halogen-free flame-retardant cable material and preparation method thereof |
| CN103540007A (en) * | 2012-07-13 | 2014-01-29 | 上海日之升新技术发展有限公司 | High-fill halogen-free flame-retarding cable material and preparation method thereof |
-
2014
- 2014-05-28 CN CN201410233118.9A patent/CN105315597A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608032A (en) * | 2008-06-20 | 2009-12-23 | 苏州亨利通信材料有限公司 | Environmental-friendly halogen-free low-smoke flame retardant material for coaxial cable and preparation method thereof |
| CN103172918A (en) * | 2011-12-22 | 2013-06-26 | 上海杰事杰新材料(集团)股份有限公司 | Low-smoke halogen-free flame-retardant cable material and preparation method thereof |
| CN102731891A (en) * | 2012-06-20 | 2012-10-17 | 苏州德尔泰高聚物有限公司 | Thermoplastic oil-resistant halogen-free low-smoke flame-retardant polyolefin cable material and preparation method thereof |
| CN103540007A (en) * | 2012-07-13 | 2014-01-29 | 上海日之升新技术发展有限公司 | High-fill halogen-free flame-retarding cable material and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| 张玉龙等: "《塑料配方与制备手册》", 30 June 2010, 化学工业出版社 * |
| 欧育湘: "《阻燃剂》", 30 September 2009, 国防工业出版社 * |
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