CN103044759B - Low-smoke zero-halogen flame-retardant sheathing compound for round cable and preparation method thereof - Google Patents
Low-smoke zero-halogen flame-retardant sheathing compound for round cable and preparation method thereof Download PDFInfo
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- CN103044759B CN103044759B CN201210585241.8A CN201210585241A CN103044759B CN 103044759 B CN103044759 B CN 103044759B CN 201210585241 A CN201210585241 A CN 201210585241A CN 103044759 B CN103044759 B CN 103044759B
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Abstract
The invention provides a low-smoke zero-halogen flame-retardant sheathing compound for a round cable. The sheathing compound comprises the following components in part by weight: 100 parts of base resin, 130-160 parts of flame retardant, 1.0-2.5 parts of coupling reagent, 0.5-1 part of antioxidant and 0.5-3 parts of lubricating agent, wherein the base resin comprises the following components of ethylene-vinyl acetate (EVA) copolymer, linear low density polyethylene (LLDPE) and ethylene-butene copolymer (POE), and the weight ratio of the ethylene-vinyl acetate (EVA) copolymer, the linear low density polyethylene (LLDPE) and the ethylene-butene copolymer (POE) is (60-75) : (10-20) : (10-20) in sequence. The invention provides the sheathing compound for the round cable, wherein the sheathing compound has the characteristics of low smoke, zero halogen, flame retardance and cracking resistance.
Description
Technical field
The present invention relates to a kind of optical cable low-smoke halogen-free flame-retardant sheath material and preparation method thereof, more specifically, relate to a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material and preparation method thereof.
Background technology
Along with the develop rapidly of FTTH (fiber to the home), at present, butterfly optical cable uses at home on a large scale, in the prior art, usually there is quality accident in use procedure in butterfly optical cable, is mainly manifested in the following aspects: (1) butterfly optical cable is in laid processes, and the bent angle in case of passed through is more, diameter is less at home, and when having the pipeline of 90 degree of elbows, optical cable is easily pulled off; (2) butterfly optical cable is flat structure, and during construction threading, resistance is larger.
For the use limitation of butterfly optical cable, butterfly optical cable is replaced to overcome the above problems with circular optical cable.Circular optical cable sheath material requires low cigarette, halogen-free flameproof, cracking resistance (circular optical cable carries out thermal shock test (6 circle * 3D), at 130 DEG C, after 1 hour, and circular optical cable flawless).Material property meets YD/T1113-2001 standard.
In sum, this area shortage is a kind of can meet circular optical cable low-smoke halogen-free flame-retardant sheath material of above-mentioned over-all properties requirement and preparation method thereof.
Summary of the invention
The first object of the present invention is to obtain a kind of low cigarette, halogen-free flameproof, the circular optical cable low-smoke halogen-free flame-retardant sheath material of cracking resistance.
The second object of the present invention is to obtain a kind of low cigarette, halogen-free flameproof, the preparation method of the circular optical cable low-smoke halogen-free flame-retardant sheath material of cracking resistance.
In a first aspect of the present invention, provide a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material, wherein, each component of described sheath material and parts by weight as follows:
Base resin 100 parts;
Fire retardant 130 ~ 160 parts;
Coupling agent 1.0 ~ 2.5 parts;
0.5 ~ 1 part, oxidation inhibitor;
Lubricant 0.5 ~ 3 part
Described base resin comprises following component: ethylene-vinyl acetate (EVA) multipolymer, linear low density of polyethylene (LLDPE), ethylene-butene copolymer (POE) and three's weight ratio are followed successively by (60 ~ 75): (10 ~ 20): (10 ~ 20).
In a specific embodiment of the present invention, the melting index of described ethylene-vinyl acetate (EVA) multipolymer is: 2 ~ 7g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG;
Wherein the mass percentage of vinyl acetate is: 10 ~ 30%; With the total weight of ethylene-vinyl acetate (EVA) multipolymer.
In a specific embodiment of the present invention, the melting index of described linear low density of polyethylene (LLDPE) is: 1 ~ 3g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG.
In a specific embodiment of the present invention, the melting index of ethylene-butene copolymer (POE) is: 2 ~ 5g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG.
In a specific embodiment of the present invention, described fire retardant is aluminium hydroxide.
In a specific embodiment of the present invention, the median particle diameter of described aluminium hydroxide is 1.25 ~ 1.65 μm, and specific surface area is 4-6m
2/ g.
In a specific embodiment of the present invention, described coupling agent is vinyltriethoxysilane.
In a specific embodiment of the present invention, described oxidation inhibitor is four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010).
In a specific embodiment of the present invention, described lubricant is silicone master batch,
More preferably, in described silicone master batch the number-average molecular weight of siloxanes 600,000 ~ 850,000.
A second aspect of the present invention provides a kind of preparation method of a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material of the present invention, and described preparation method comprises the following steps:
Fire retardant, coupling agent, oxidation inhibitor are proportionally mixed to temperature to 70 DEG C ± 5 DEG C, discharging is placed, and with other components by proportioning extruding pelletization, obtains described a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material.
Embodiment
The present inventor is through extensive and deep research, by improving preparation technology, for the use limitation of butterfly optical cable, obtain low cigarette, halogen-free flameproof, (circular optical cable carries out thermal shock test (6 circle * 3D) to cracking resistance, at 130 DEG C, after 1 hour, circular optical cable flawless), material property meets the circular optical cable sheath material of YD/T1113-2001 standard.Complete the present invention on this basis.
Technical conceive of the present invention is as follows:
For the butterfly optical cable that prior art is flat structure, the invention provides a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material and preparation method thereof, each component of described sheath material and parts by weight as follows: base resin 100 parts; Fire retardant: 130 ~ 160 parts; Coupling agent 1.0 ~ 2.5 parts; 0.5 ~ 1 part, oxidation inhibitor; Lubricant 0.5 ~ 3 part; Described base resin comprises following component: ethylene-vinyl acetate copolymer (EVA), linear low density of polyethylene (LLDPE), ethylene-butene copolymer (POE) and three's weight ratio are followed successively by (60 ~ 75): (10 ~ 20); Fire retardant described in (10 ~ 20) is aluminium hydroxide, and coupling agent is vinyltriethoxysilane, and lubricant is silicone master batch.The invention provides a kind of circular optical cable material, flame retardant properties is good, and mechanical property is superior, low-smoke halogen-free flame-retardant sheath material of cracking resistance and preparation method thereof.
In the present invention, term " contains " or " comprising " represents that various composition can be applied in mixture of the present invention or composition together.Therefore, term " primarily of ... composition " and " by ... form " be included in term and " contain " or in " comprising ".
Below describe in detail to various aspects of the present invention:
Circular optical cable low-smoke halogen-free flame-retardant sheath material
In a first aspect of the present invention, provide a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material, wherein, each component of described sheath material and parts by weight as follows:
Base resin 100 parts;
Fire retardant 130 ~ 160 parts;
Coupling agent 1.0 ~ 2.5 parts;
0.5 ~ 1 part, oxidation inhibitor;
Lubricant 0.5 ~ 3 part
Described base resin comprises following component: ethylene-vinyl acetate (EVA) multipolymer, linear low density of polyethylene (LLDPE), ethylene-butene copolymer (POE) and three's weight ratio are followed successively by (60 ~ 75): (10 ~ 20): (10 ~ 20).
The present inventor finds, the butterfly optical cable that prior art adopts is in laid processes, and the bent angle in case of passed through is more, diameter is less, and when having the pipeline of 90 degree of elbows, optical cable is easily pulled off; And butterfly optical cable is flat structure, during construction threading, resistance is larger.But after the protecting sleeve of optical cable of prior art is prepared into circular optical cable, optical cable splitting resistance is poor.The present inventor finds, when adopting new base resin, the anti-cracking performance of sheath material of the present invention greatly improves, and can prepare conglobate mass on this basis, thus solves the problem of butterfly optical cable.
In a specific embodiment of the present invention, the melting index of described ethylene-vinyl acetate (EVA) multipolymer is: 2 ~ 7g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG;
Wherein the mass percentage of vinyl acetate is: 10 ~ 30%; With the total weight of ethylene-vinyl acetate (EVA) multipolymer.
In a specific embodiment of the present invention, the melting index of described linear low density of polyethylene (LLDPE) is: 1 ~ 3g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG.
In a specific embodiment of the present invention, the melting index of ethylene-butene copolymer (POE) is: 2 ~ 5g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG.
In a specific embodiment of the present invention, described fire retardant is aluminium hydroxide.
In a specific embodiment of the present invention, the median particle diameter of described aluminium hydroxide is 1.25 ~ 1.65 μm, and specific surface area is 4-6m
2/ g.
In a specific embodiment of the present invention, described coupling agent is vinyltriethoxysilane.
In a specific embodiment of the present invention, described oxidation inhibitor is four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010).
In a specific embodiment of the present invention, described lubricant is silicone master batch,
More preferably, in described silicone master batch the number-average molecular weight of siloxanes 600,000 ~ 850,000.
A second aspect of the present invention provides a kind of preparation method of a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material of the present invention, and described preparation method comprises the following steps:
Fire retardant, coupling agent, oxidation inhibitor are proportionally mixed to temperature to 70 DEG C ± 5 DEG C, discharging is placed, and with other components by proportioning extruding pelletization, obtains described a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material.
Preferred implementation
In the preferred embodiment of the present invention, ethylene-vinyl acetate (EVA), linear low density of polyethylene (LLDPE), ethylene-butene copolymer (POE) is adopted to be matrix resin, aluminium hydroxide is main fire retardant, and vinyltriethoxysilane is coupling agent.The circular optical cable sheath material of preparation has that high flame retardant, mechanical property are superior, cracking resistance.
Wherein, splitting resistance outstanding behaviours exists, and carries out thermal shock test (6 circle * 3D) with the circular optical cable of this sheath material, at 130 DEG C, after 1 hour, and circular optical cable flawless.
As no specific instructions, various raw material of the present invention all can be obtained by commercially available; Or prepare according to the ordinary method of this area.Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the same meaning be familiar with.In addition any method similar or impartial to described content and material all can be applicable in the inventive method
Other aspects of the present invention, due to disclosure herein, are apparent to those skilled in the art.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, measures according to national standard usually.If there is no corresponding national standard, then according to general international standard, normal condition or carry out according to the condition that manufacturer advises.Unless otherwise indicated, otherwise all numbers are weight part, and all per-cent is weight percentage.
Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the same meaning be familiar with.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Other aspects of the present invention, due to disclosure herein, are apparent to those skilled in the art.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, measures according to national standard usually.If there is no corresponding national standard, then according to general international standard, normal condition or carry out according to the condition that manufacturer advises.Unless otherwise indicated, otherwise all numbers are weight part, and all per-cent is weight percentage, and described polymericular weight is number-average molecular weight.
Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the same meaning be familiar with.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Embodiment 1
Each ingredient names and each composition weight number as follows:
The preparation method of foregoing invention, it comprises following processing step:
Aluminium hydroxide, vinyltriethoxysilane, Irganox1010 are proportionally mixed to temperature to 70 DEG C ± 5 DEG C, discharging is placed, with other components by proportioning extruding pelletization.
Carry out performance detection experiment to the product in embodiment 1, each performance value is as shown in PERFORMANCE EXAMPLES.
Embodiment 2
Each ingredient names and each composition weight number as follows:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1
Carry out performance detection experiment to the product in embodiment 2, each performance value is as shown in PERFORMANCE EXAMPLES.
Embodiment 3.
Each ingredient names and each composition weight number as follows:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1.
Carry out performance detection experiment to the product in embodiment 3, each performance value is as shown in PERFORMANCE EXAMPLES
Embodiment 4.
Each ingredient names and each composition weight number as follows:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1.
Carry out performance detection experiment to the product in embodiment 4, each performance value is as PERFORMANCE EXAMPLES illustrated embodiment 5.
Each ingredient names and each composition weight number as follows:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1.
Carry out performance detection experiment to the product in embodiment 5, each performance value is as shown in PERFORMANCE EXAMPLES
Embodiment 6.
Each ingredient names and each composition weight number as follows:
The preparation method of above-mentioned CABLE MATERIALS is identical with embodiment 1.
Carry out performance detection experiment to the product in embodiment 6, each performance value is as shown in PERFORMANCE EXAMPLES.
PERFORMANCE EXAMPLES
Table 1 embodiment product performance test result
The foregoing is only preferred embodiment of the present invention, and be not used to limit substantial technological context of the present invention, substantial technological content of the present invention is broadly defined in the right of application, any technology entities that other people complete or method, if with application right define identical, also or a kind of change of equivalence, be all covered by being regarded as among this right.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read foregoing of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (7)
1. a circular optical cable low-smoke halogen-free flame-retardant sheath material, wherein, each component of described sheath material and parts by weight as follows:
Described base resin comprises following component: ethylene-vinyl acetate copolymer, linear low density of polyethylene, and ethylene-butene copolymer and three's weight ratio are followed successively by (60 ~ 75): (10 ~ 20): (10 ~ 20);
Described fire retardant is aluminium hydroxide;
Described coupling agent is vinyltriethoxysilane;
Described oxidation inhibitor is four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester;
Described lubricant is silicone master batch.
2. circular optical cable low-smoke halogen-free flame-retardant sheath material as claimed in claim 1, is characterized in that,
The melting index of described ethylene-vinyl acetate copolymer is: 2 ~ 7g/10min, and measure with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG;
Wherein the mass percentage of vinyl acetate is: 10 ~ 30%; With the total weight of ethylene-vinyl acetate copolymer.
3. circular optical cable low-smoke halogen-free flame-retardant sheath material as claimed in claim 1, it is characterized in that, the melting index of described linear low density of polyethylene is: 1 ~ 3g/10min, measures with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG.
4. circular optical cable low-smoke halogen-free flame-retardant sheath material as claimed in claim 1, it is characterized in that, the melting index of ethylene-butene copolymer is: 2 ~ 5g/10min, measures with GB/T3682-2000 method, test condition is: temperature is 190 DEG C, and load is 2.16KG.
5. circular optical cable low-smoke halogen-free flame-retardant sheath material as claimed in claim 1, is characterized in that: the median particle diameter of described aluminium hydroxide is 1.25 ~ 1.65 μm, and specific surface area is 4-6m
2/ g.
6. circular optical cable low-smoke halogen-free flame-retardant sheath material as claimed in claim 1, is characterized in that: in described silicone master batch, the number-average molecular weight of siloxanes is 600,000 ~ 850,000.
7. the preparation method of the circular optical cable low-smoke halogen-free flame-retardant sheath material as described in claim arbitrary in claim 1 ~ 6, it comprises the following steps:
Fire retardant, coupling agent, oxidation inhibitor are mixed to temperature to 70 DEG C ± 5 DEG C according to following ratio, and discharging is placed, and with other components by proportioning extruding pelletization, obtains described a kind of circular optical cable low-smoke halogen-free flame-retardant sheath material;
Described base resin comprises following component: ethylene-vinyl acetate copolymer, linear low density of polyethylene, and ethylene-butene copolymer and three's weight ratio are followed successively by (60 ~ 75): (10 ~ 20): (10 ~ 20);
Described fire retardant is aluminium hydroxide;
Described coupling agent is vinyltriethoxysilane;
Described oxidation inhibitor is four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester;
Described lubricant is silicone master batch.
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| CN201210585241.8A CN103044759B (en) | 2012-12-28 | 2012-12-28 | Low-smoke zero-halogen flame-retardant sheathing compound for round cable and preparation method thereof |
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| CN201210585241.8A CN103044759B (en) | 2012-12-28 | 2012-12-28 | Low-smoke zero-halogen flame-retardant sheathing compound for round cable and preparation method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103739928A (en) * | 2013-12-31 | 2014-04-23 | 上海至正道化高分子材料有限公司 | High-performance low smoke zero halogen power cable sheath material adopting silicon resin to enhance efficiency and preparation method thereof |
| CN103897245B (en) * | 2014-03-25 | 2016-02-17 | 江苏科信光电科技有限公司 | A kind of preparation method of cracking resistance low-smoke zero-halogen flame-retarding optical cable sheath material |
| CN105462050A (en) * | 2015-12-23 | 2016-04-06 | 上海至正道化高分子材料股份有限公司 | Graphene modified low-smoke halogen-free flame-retardant sheath material and preparation method thereof |
| 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 |
| CN108458937A (en) * | 2018-06-12 | 2018-08-28 | 西安西古光通信有限公司 | A method of assessment outdoor optical cable fire retardant jacket Thermal cracking performance |
| CN112457565A (en) * | 2020-11-17 | 2021-03-09 | 苏州亨利通信材料有限公司 | Low-smoke halogen-free silane crosslinking flame-retardant insulating material and preparation method thereof |
| CN113817260A (en) * | 2021-09-29 | 2021-12-21 | 江苏领瑞新材料科技有限公司 | Special low-smoke halogen-free flame-retardant sheath material for polymer-based optical fiber and preparation method thereof |
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| CN1322774A (en) * | 2001-06-06 | 2001-11-21 | 宁波信高塑化有限公司 | Material specially for communication optical cable protecting casing and its prepn |
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| CN1322774A (en) * | 2001-06-06 | 2001-11-21 | 宁波信高塑化有限公司 | Material specially for communication optical cable protecting casing and its prepn |
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