CN110305382B - Halogen-free flame-retardant cable material composition for automobile wire harness - Google Patents
Halogen-free flame-retardant cable material composition for automobile wire harness Download PDFInfo
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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
- C08L23/06—Polyethene
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/22—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
Abstract
The invention relates to a halogen-free flame-retardant cable material composition for automobile wire harnesses, which is prepared from the following raw materials in parts by weight: 50-55 parts of polyolefin, 5-7 parts of plasticizer, 15-18 parts of benzoxazole phosphonate, 11-17 parts of thiazole [5,4-b ] contained pyridyl phosphonate, 8-11 parts of inorganic flame retardant, 2-4 parts of nano zinc oxide and 10100.5-1 part of antioxidant. The benzoxazole phosphonate and the thiazole [5,4-b ] containing pyridyl phosphonate provided by the invention are high-efficiency flame retardant and antibacterial agent, are applied to the halogen-free flame-retardant cable material composition for automobile wire harnesses, and show excellent flame retardant property and antibacterial property.
Description
Technical Field
The invention relates to the technical field of cable materials, in particular to a cable material composition for an automobile wire harness.
Background
The cable material mainly comprises polyvinyl chloride, polyolefin, fluororubber and other materials. However, polyvinyl chloride and fluororubber materials release toxic substances and corrosive gases during combustion, which endangers life safety of people, so halogen-free flame-retardant cable materials have been widely paid attention to and applied in recent years. In particular, in 2001, europe established the FROOC association, intended to promote the replacement of PVC materials with cable materials based on halogen-free polyolefin cable materials in synergy.
In order to achieve higher flame retardant performance, researchers often add a large amount of halogen-free solid flame retardants such as aluminum hydroxide or magnesium hydroxide in polyolefin cable materials, and the amount of the halogen-free solid flame retardants is usually required to be larger than that of matrix resin, so that the overall tensile strength and elongation at break of the material are greatly reduced. The filling of a large amount of solid inorganic substance is not only incompatible with the resin system, but also results in poor tear resistance of the cable material.
In order to solve this problem, a method of using a composite organic phosphorus nitrogen-based flame retardant has been proposed. Although the addition amount of the phosphorus-nitrogen flame retardant is obviously reduced compared with that of the inorganic flame retardant, the negative influence on the comprehensive mechanical property of the material is still not negligible due to the problems of compatibility and the like. Therefore, the research and development of the halogen-free flame-retardant automobile wiring harness cable material with high mechanical property and high flame retardant property has important significance.
In addition, polyethylene materials have the technical problem of poor antibacterial property, and the problems need to be solved.
Disclosure of Invention
The invention aims to make up the defects of the prior art and provides the halogen-free flame-retardant cable material composition for the automobile wire harness, which has the advantages of high tensile strength, high elongation at break, high flame retardant property, strong antibacterial property and simple preparation process.
In order to solve the technical problems, the invention adopts the technical scheme that:
the halogen-free flame-retardant cable material composition for the automobile wire harness comprises the following components in parts by weight:
wherein, the polyolefin comprises 50-55 parts by weight, the plasticizer comprises 5-7 parts by weight, the benzoxazole phosphonate comprises 15-18 parts by weight, the thiazole [5,4-b ] pyridyl phosphonate comprises 11-17 parts by weight, the inorganic flame retardant comprises 8-11 parts by weight, the nano zinc oxide comprises 2-4 parts by weight, and the antioxidant comprises 10100.5-1 part by weight.
As a limitation of the present invention, the polyolefin of the present invention is one of polyethylene or polypropylene.
The plasticizer is one of polyethylene wax or microcrystalline wax.
As a limitation of the invention, the benzoxazole phosphonate of the invention has a structural formula shown in the following formula (I):
as a limitation of the invention, the benzoxazole phosphonate is prepared from tricresyl phosphate, 2-aminophenol, DTBP and FeBr as a catalyst2And performing constant-temperature reaction at the reaction temperature of 112 +/-2 ℃ under an argon environment, tracking and detecting by using TLC (thin layer chromatography), and judging that the reaction can be terminated, wherein the reaction equation is as follows:
as a limitation of the present invention, the structural formula of the thiazole [5,4-b ] containing pyridyl phosphonate of the present invention is shown in the following formula (II):
as a limitation of the present invention, the thiazole [5,4-b ] containing compounds of the present invention]The pyridyl phosphonate is prepared from 3-amino-2-bromo-pyridine and phosphonate compound containing amino group, CS2，CuCl2·2H2O，K2CO3DMF is used as a solvent, the constant temperature reaction is carried out at 108 +/-2 ℃, TLC tracking detection is carried out, and the reaction termination is judged, wherein the reaction equation is as follows:
the inorganic flame retardant is one or two of aluminum hydroxide or magnesium hydroxide as a limitation of the invention.
The finished product prepared by the invention can be applied to the technical field of manufacturing cable materials for halogen-free flame-retardant automobile wire harnesses with high mechanical property and high flame-retardant property requirements.
The invention has the beneficial effects that:
the benzoxazole phosphonate and the thiazole [5,4-b ] containing pyridyl phosphonate are efficient N-P synergistic halogen-free flame retardant, and can be compounded with an inorganic flame retardant for use, so that the flame retardant property of the halogen-free flame-retardant cable material for automobile wire harnesses can be effectively improved.
In addition, benzoxazole phosphonate and thiazole [5,4-b ] containing pyridyl phosphonate compounds are organic compounds with antibacterial effect and have good compatibility with resin systems.
The plasticizer provided by the invention is suitable for the system, and can well improve the mechanical property of the material.
Detailed Description
The invention will be further described in the following examples, but it is to be understood that these examples are for illustrative purposes only and are not to be construed as limiting the practice of the invention.
Example 1:
50 parts of polyethylene, 5 parts of polyethylene wax, 15 parts of benzoxazole phosphonate, 17 parts of thiazole [5,4-b ] containing pyridyl phosphonate, 5 parts of magnesium hydroxide, 5 parts of lithium hydroxide, 2 parts of nano zinc oxide and 10101 parts of antioxidant are put into a stirring kettle, stirred for 8min at the material temperature of 105 ℃ and the rotation number of 400r/min, and stirred uniformly and cooled to room temperature to obtain a mixture;
and adding the obtained mixture into a double-screw extruder, melting at 180 ℃ and at the rotating speed of 300r/min, granulating and extruding to obtain the halogen-free flame-retardant cable material composition for the automobile wire harness.
Example 2:
55 parts of polypropylene, 7 parts of microcrystalline paraffin, 15.5 parts of benzoxazole phosphonate, 11 parts of thiazole [5,4-b ] containing pyridyl phosphonate, 8 parts of aluminum hydroxide, 3 parts of nano zinc oxide and 10100.5 parts of antioxidant are put into a stirring kettle, stirred for 15min at the material temperature of 120 ℃ and the revolution of 550r/min, and stirred uniformly and cooled to room temperature to obtain a mixture;
and adding the obtained mixture into a double-screw extruder, melting at 220 ℃ and the rotating speed of 550r/min, granulating and extruding to obtain the halogen-free flame-retardant cable material composition for the automobile wire harness.
Example 3:
51 parts of polyolefin, 5.4 parts of polyethylene wax, 18 parts of benzoxazole phosphonate, 12 parts of thiazole [5,4-b ] containing pyridyl phosphonate, 11 parts of magnesium hydroxide, 2 parts of nano zinc oxide and 10100.6 parts of antioxidant are put into a stirring kettle, stirred for 12min at the material temperature of 110 ℃ and the revolution of 450r/min, stirred uniformly and cooled to room temperature to obtain a mixture;
and adding the obtained mixture into a double-screw extruder, melting at 200 ℃ and the rotating speed of 400r/min, granulating and extruding to obtain the halogen-free flame-retardant cable material composition for the automobile wire harness.
Example 4
54 parts of polyolefin, 6 parts of polyethylene wax, 16 parts of benzoxazole phosphonate, 11 parts of thiazole [5,4-b ] containing pyridyl phosphonate, 8 parts of magnesium hydroxide, 4 parts of nano zinc oxide and 10101 parts of antioxidant are put into a stirring kettle, stirred for 15min at the material temperature of 120 ℃ and the rotation number of 550r/min, stirred uniformly and cooled to room temperature to obtain a mixture;
and adding the obtained mixture into a double-screw extruder, melting at 220 ℃ and the rotating speed of 550r/min, granulating and extruding to obtain the halogen-free flame-retardant cable material composition for the automobile wire harness.
Comparative example 1:
54 parts of polyolefin, 6 parts of polyethylene wax, 35 parts of magnesium hydroxide, 4 parts of nano zinc oxide and 10101 parts of antioxidant are put into a stirring kettle, stirred for 15min at the material temperature of 120 ℃ and the revolution of 550r/min, stirred uniformly and cooled to room temperature to obtain a mixture;
and adding the obtained mixture into a double-screw extruder, melting at 220 ℃ and the rotating speed of 550r/min, granulating and extruding to obtain the halogen-free flame-retardant cable material composition for the automobile wire harness.
Comparative example 2:
60 parts of polyolefin, 6 parts of polyethylene wax, 11 parts of pyridyl phosphonate containing thiazole [5,4-b ], 8 parts of magnesium hydroxide, 4 parts of nano zinc oxide and 10101 parts of antioxidant are put into a stirring kettle, stirred for 15min at the material temperature of 120 ℃ and the revolution of 550r/min, stirred evenly and cooled to room temperature to obtain a mixture;
and adding the obtained mixture into a double-screw extruder, melting at 220 ℃ and the rotating speed of 550r/min, granulating and extruding to obtain the halogen-free flame-retardant cable material composition for the automobile wire harness.
TABLE 1
| Serial number | Tensile strength/MPa | Elongation at break/% | Oxygen index/% |
| Example 1 | 14.8 | 401 | 34 |
| Example 2 | 15.8 | 416 | 31 |
| Example 3 | 15.4 | 410 | 33 |
| Example 4 | 15.0 | 406 | 31 |
| Comparative example 1 | 12.2 | 321 | 24 |
| Example 2 | 14.7 | 398 | 28 |
Table 1 is a table of finished product performance test data. As can be seen from the data in Table 1, (1) the finished products obtained in examples 1 to 4 have high tensile strength and high elongation at break; (2) compared with the prior art, the flame retardant of the material has the advantages that no benzoxazole phosphonate and no thiazole [5,4-b ] pyridyl phosphonate are added in the comparative example 1, the good flame retardant effect cannot be achieved only by adding the traditional halogen-free flame retardant aluminum hydroxide, and the oxygen index of the material is reduced to a certain extent by adding no benzoxazole phosphonate in the comparative example 2. The invention provides a halogen-free flame-retardant cable material composition for automobile wire harnesses, which is characterized in that benzoxazole phosphonate and thiazole [5,4-b ] containing pyridyl phosphonate are benzoxazole and thiazole [5,4-b ] pyridyl organic compounds, so that the prepared finished product has excellent antibacterial performance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The halogen-free flame-retardant cable material composition for the automobile wire harness is characterized in that: the feed is prepared from the following raw materials in parts by weight:
50-55 parts of polyolefin, 5-7 parts of plasticizer, 15-18 parts of benzoxazole phosphonate, 11-17 parts of thiazole [5,4-b ] contained pyridyl phosphonate, 8-11 parts of inorganic flame retardant, 2-4 parts of nano zinc oxide and 0.5-1 part of antioxidant;
the structural formula of the benzoxazole phosphonate is shown as the following formula (I):
the benzoxazole phosphonate is prepared from trimethyl phosphatePhenyl ester, 2-aminophenol, DTBP, FeBr as catalyst2And performing constant-temperature reaction at the reaction temperature of 112 +/-2 ℃ under an argon environment, tracking and detecting by using TLC (thin layer chromatography), and judging that the reaction can be terminated, wherein the reaction equation is as follows:
the thiazole [5,4-b ]]The pyridyl phosphonate has the formula (III):
the thiazole [5,4-b ]]The pyridyl phosphonate is prepared from 3-amino-2-bromo-pyridine and phosphonate compound containing amino group, CS2，CuCl2·2H2O，K2CO3DMF is used as a solvent, the constant temperature reaction is carried out at 108 +/-2 ℃, TLC tracking detection is carried out, and the reaction termination is judged, wherein the reaction equation is as follows:
2. the halogen-free flame-retardant cable material composition for automobile wire harnesses as claimed in claim 1, wherein: the polyolefin is one of polyethylene or polypropylene.
3. The halogen-free flame-retardant cable material composition for automobile wire harnesses as claimed in claim 1, wherein: the plasticizer is one of polyethylene wax or microcrystalline paraffin.
4. The halogen-free flame-retardant cable material composition for automobile wire harnesses as claimed in claim 1, wherein: the inorganic flame retardant is one or two of aluminum hydroxide or magnesium hydroxide.
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| CN113248787B (en) * | 2021-06-21 | 2021-12-07 | 深圳大学 | Plasticizer and preparation method and application thereof |
| CN113603990A (en) * | 2021-08-23 | 2021-11-05 | 连鑫森 | Antibacterial PE material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266531A (en) * | 1975-12-02 | 1977-06-02 | Mitsui Toatsu Chem Inc | Preparation of oxazolylethylene compounds |
| CN101143943A (en) * | 2006-09-11 | 2008-03-19 | 深圳职业技术学院 | Low-smoke halogen-free flame-proof cable material and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6979530B2 (en) * | 2001-05-21 | 2005-12-27 | Applera Corporation | Peptide conjugates and fluorescence detection methods for intracellular caspase assay |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266531A (en) * | 1975-12-02 | 1977-06-02 | Mitsui Toatsu Chem Inc | Preparation of oxazolylethylene compounds |
| CN101143943A (en) * | 2006-09-11 | 2008-03-19 | 深圳职业技术学院 | Low-smoke halogen-free flame-proof cable material and its preparation method |
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