CN111205549A - Preparation process of 125 ℃ flame-retardant insulating material for new energy automobile wire - Google Patents
Preparation process of 125 ℃ flame-retardant insulating material for new energy automobile wire Download PDFInfo
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- CN111205549A CN111205549A CN202010200283.XA CN202010200283A CN111205549A CN 111205549 A CN111205549 A CN 111205549A CN 202010200283 A CN202010200283 A CN 202010200283A CN 111205549 A CN111205549 A CN 111205549A
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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
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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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
- C08L2201/08—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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses a preparation process of a 125 ℃ flame-retardant insulating material for a new energy automobile wire, which comprises the following steps: mixing 1-3 parts of silane modified magnesium hydroxide, silicone resin, silane modified aluminum hydroxide, polyethylene wax, an antioxidant, a cross-linking agent, polyethylene glycol distearate and N-aminophthalimide in a high-speed mixer for 6-10 min to obtain a first mixture; mixing a polyolefin elastomer, an ethylene-vinyl acetate copolymer, a styrene-butadiene copolymer, the rest of polyethylene glycol distearate and the first mixture in a high-speed mixer for 8-15 min to obtain a second mixture; and (3) putting the second mixture into a kneading machine, and kneading for 15-30 minutes at the temperature of 110-150 ℃ to obtain a kneaded material. According to the invention, under the conditions of 168h/100 +/-2 ℃ and 150 ℃ 240h of thermal aging of IRM902 test oil, the retention rate of tensile strength of the sheath layer reaches 80%, and the retention rate of elongation at break reaches 80%.
Description
Technical Field
The invention relates to the field of high-voltage cables in electric automobiles, in particular to a preparation process of a 125 ℃ flame-retardant insulating material for a new energy automobile wire.
Background
With the increasing popularization of new energy automobiles, particularly with the policy support of the state in the field of new energy electric automobiles, electric automobile projects are rapidly developed. The rapid development of passenger cars has the defects of narrow internal space and high environmental temperature, and provides higher requirements for the softness and long-term heat resistance of high-voltage wire insulating materials in electric vehicles. At present, the insulating material for the high-voltage wire in the vehicle on the market has hard hardness, and the wire is easy to crack due to heat resistance, so that the heat resistance level of the insulating material is required to be improved, and the softness of the insulating material is required to be reduced.
Disclosure of Invention
The invention aims to provide a preparation process of a 125 ℃ flame-retardant insulating material for a new energy automobile wire, wherein the 125 ℃ flame-retardant insulating material obtained by the preparation process has the tensile strength retention rate of a sheath layer of 80% and the elongation at break retention rate of 80% under the conditions of 168h/100 +/-2 ℃ and 150 ℃ 240h of thermal aging of IRM902 test oil respectively.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation process of a 125 ℃ flame-retardant insulating material for a new energy automobile wire is disclosed, wherein the 125 ℃ flame-retardant insulating material is composed of the following components in parts by weight: the 125 ℃ flame-retardant insulating material comprises the following components in parts by weight: 100 parts of a polyolefin elastomer, 10-18 parts of an ethylene-vinyl acetate copolymer, 30-50 parts of silane modified aluminum hydroxide, 0.5-2 parts of silicone resin, 12-18 parts of silane modified magnesium hydroxide, 3-8 parts of polyethylene wax, 2-4 parts of an antioxidant, 0.5-1.5 parts of a cross-linking agent, 3-5 parts of a styrene-butadiene copolymer, 4-8 parts of polyethylene glycol distearate and 1-3 parts of N-aminophthalimide, wherein the polyolefin elastomer consists of 60-100 parts by weight of an ethylene-octene copolymer, 20-50 parts by weight of linear low-density polyethylene and 10-20 parts by weight of an ethylene-propylene binary copolymer;
the method comprises the following steps:
mixing 12-18 parts of silane-modified magnesium hydroxide, 0.5-2 parts of silicone resin, 30-50 parts of silane-modified aluminum hydroxide, 3-8 parts of polyethylene wax, 2-4 parts of antioxidant, 0.5-1.5 parts of cross-linking agent, 2-4 parts of polyethylene glycol distearate and 1-3 parts of N-aminophthalimide in a high-speed mixer for 6-10 min to obtain a first mixture;
mixing 100 parts of polyolefin elastomer, 10-18 parts of ethylene-vinyl acetate copolymer, 3-5 parts of styrene-butadiene copolymer, the rest part of polyethylene glycol distearate and the first mixture in a high-speed mixer for 8-15 min to obtain a second mixture;
step three, putting the second mixture into a kneading machine, and kneading for 15-30 minutes at the temperature of 110-150 ℃ to obtain a kneaded material;
and step four, putting the mixed materials into a reciprocating single-screw extruder for mixing, and then extruding and granulating by a single screw to obtain the 125 ℃ flame-retardant insulating material.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the above embodiment, the antioxidant is at least one of antioxidant 1010, antioxidant 168 and antioxidant 300 (including one or more combinations).
2. In the above scheme, the cross-linking agent is at least one of TAC, TAIC and TMPTMA.
3. In the scheme, the temperature of each section of the screw is 90-120 ℃ of the feeding section, 100-130 ℃ of the conveying section, 100-150 ℃ of the melting section and 100-160 ℃ of the machine head.
4. In the scheme, the temperature in the third step is 125-135 ℃.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the preparation process of the 125 ℃ flame-retardant insulating material for the new energy automobile wire is based on 100 parts of polyolefin elastomer and 10-18 parts of ethylene-vinyl acetate copolymer, 3-5 parts of styrene-butadiene copolymer and polyethylene glycol distearate are added, under the condition of 168h/100 +/-2 ℃ of IRM902 test oil, the retention rate of the tensile strength of a sheath layer reaches 80%, the retention rate of the elongation at break reaches 80%, and the oil stain resistance of the sheath layer of the charging cable is enhanced; and in addition, 1-3 parts of polyethylene glycol distearate and N-aminophthalimide are further added into the insulating material, so that the retention rate of the tensile strength of the insulating layer exceeds 85% and the retention rate of the elongation at break exceeds 80% under the condition of 150 ℃ and 240 hours of thermal aging, and the heat resistance of the insulating material is enhanced.
Detailed Description
The invention is further described below with reference to the following examples:
examples 1 to 4: a preparation process of a 125 ℃ flame-retardant insulating material for a new energy automobile wire is disclosed, wherein the 125 ℃ flame-retardant insulating material is composed of the following components in parts by weight:
TABLE 1
Example 1 the antioxidant is antioxidant 300, the polyolefin elastomer is composed of 80 parts by weight of ethylene-octene copolymer, 30 parts by weight of linear low density polyethylene and 10 parts by weight of ethylene-propylene binary copolymer, and the crosslinking agent is TAC;
example 2 the antioxidant is antioxidant 168, the polyolefin elastomer is composed of 80 parts by weight of ethylene-octene copolymer, 40 parts by weight of linear low density polyethylene and 15 parts by weight of ethylene-propylene binary copolymer, and the crosslinking agent is TAC;
example 3 the antioxidant is antioxidant 300, the polyolefin elastomer is composed of 100 parts by weight of ethylene-octene copolymer, 20 parts by weight of linear low density polyethylene and 15 parts by weight of ethylene-propylene binary copolymer, and the cross-linking agent is TMPTMA;
example 4 the antioxidant was antioxidant 168, the polyolefin elastomer was composed of 100 parts by weight of an ethylene-octene copolymer, 40 parts by weight of a linear low density polyethylene, and 10 parts by weight of an ethylene-propylene binary copolymer, and the crosslinking agent was TMPTMA.
The method comprises the following steps:
step one, mixing silane modified magnesium hydroxide, silicone resin, silane modified aluminum hydroxide, polyethylene wax, an antioxidant, a cross-linking agent, partial polyethylene glycol distearate and N-aminophthalimide in a high-speed mixer for 6-10 min to obtain a first mixture;
mixing the polyolefin elastomer, the ethylene-vinyl acetate copolymer, the styrene-butadiene copolymer, the rest polyethylene glycol distearate and the first mixture in a high-speed mixer for 8-15 min to obtain a second mixture;
step three, putting the second mixture into a kneading machine, and kneading for 20 minutes at the temperature of 130 ℃ to obtain a kneaded material;
and step four, putting the mixed materials into a reciprocating single-screw extruder for mixing, and then extruding and granulating by a single screw to obtain the 125 ℃ flame-retardant insulating material.
The temperature of each section of the screw is 95 ℃ of the feeding section, 115 ℃ of the conveying section, 120 ℃ of the melting section and 120 ℃ of the machine head.
Comparative examples 1 to 2: a preparation process of a 125 ℃ flame-retardant insulating material comprises the following components in parts by weight, as shown in Table 2:
TABLE 2
The antioxidant of comparative examples 1, 2 and 3 was antioxidant 300, the above polyolefin elastomer was composed of 80 parts by weight of ethylene-octene copolymer, 30 parts by weight of linear low density polyethylene and 10 parts by weight of ethylene-propylene bipolymer, and the crosslinking agent was TAC;
the process steps of the comparative example are the same as those of the example.
The properties of the insulating material prepared in the above example 1 and comparative examples 1 to 3 are shown in table 3:
TABLE 3
| Test items | Example 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Tensile Strength Retention (mineral oil resistant IRM 902168 h/100. + -. 2 ℃ C.) | 81 | 66 | 61 | 80 |
| Retention of elongation at break (mineral oil resistant IRM 902168 h/100. + -. 2 ℃ C.) | 82 | 64 | 69 | 81 |
| Tensile Strength Retention (150 ℃ C. 240h Heat aging) | 85 | 81 | 70 | 71 |
| Retention of elongation at break (150 ℃ C. 240h heat aging) | 82 | 82 | 64 | 66 |
；
As shown in the evaluation results of Table 3, in the insulating material in the embodiment of the invention, under the conditions of 168h/100 +/-2 ℃ and 150 ℃ 240h of thermal aging of IRM902 test oil, the tensile strength retention rate of the sheath layer reaches 80%, the elongation at break retention rate also reaches 80%, and the comprehensive performance is better than that of comparative examples 1-3, so that the 125 ℃ flame-retardant insulating material obtained by the preparation process of the invention not only enhances the heat resistance of the insulating material, but also enhances the oil stain resistance.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. A preparation process of a 125 ℃ flame-retardant insulating material for a new energy automobile wire is characterized by comprising the following steps of: the 125 ℃ flame-retardant insulating material comprises the following components in parts by weight: 100 parts of a polyolefin elastomer, 10-18 parts of an ethylene-vinyl acetate copolymer, 30-50 parts of silane modified aluminum hydroxide, 0.5-2 parts of silicone resin, 12-18 parts of silane modified magnesium hydroxide, 3-8 parts of polyethylene wax, 2-4 parts of an antioxidant, 0.5-1.5 parts of a cross-linking agent, 3-5 parts of a styrene-butadiene copolymer, 4-8 parts of polyethylene glycol distearate and 1-3 parts of N-aminophthalimide, wherein the polyolefin elastomer consists of 60-100 parts by weight of an ethylene-octene copolymer, 20-50 parts by weight of linear low-density polyethylene and 10-20 parts by weight of an ethylene-propylene binary copolymer;
the method comprises the following steps:
mixing 12-18 parts of silane-modified magnesium hydroxide, 0.5-2 parts of silicone resin, 30-50 parts of silane-modified aluminum hydroxide, 3-8 parts of polyethylene wax, 2-4 parts of antioxidant, 0.5-1.5 parts of cross-linking agent, 2-4 parts of polyethylene glycol distearate and 1-3 parts of N-aminophthalimide in a high-speed mixer for 6-10 min to obtain a first mixture;
mixing 100 parts of polyolefin elastomer, 10-18 parts of ethylene-vinyl acetate copolymer, 3-5 parts of styrene-butadiene copolymer, the rest part of polyethylene glycol distearate and the first mixture in a high-speed mixer for 8-15 min to obtain a second mixture;
step three, putting the second mixture into a kneading machine, and kneading for 15-30 minutes at the temperature of 110-150 ℃ to obtain a kneaded material;
and step four, putting the mixed materials into a reciprocating single-screw extruder for mixing, and then extruding and granulating by a single screw to obtain the 125 ℃ flame-retardant insulating material.
2. The preparation process of the 125 ℃ flame-retardant insulating material for the new energy automobile wire according to claim 1 is characterized in that: the antioxidant is at least one of antioxidant 1010, antioxidant 168 and antioxidant 300 (including one or more combinations).
3. The preparation process of the 125 ℃ flame-retardant insulating material for the new energy automobile wire according to claim 1 is characterized in that: the cross-linking agent is at least one of TAC, TAIC and TMPTMA.
4. The preparation process of the 125 ℃ flame-retardant insulating material for the new energy automobile wire according to claim 1 is characterized in that: the temperature of each section of the screw is 90-120 ℃ of the feeding section, 100-130 ℃ of the conveying section, 100-150 ℃ of the melting section and 100-160 ℃ of the machine head.
5. The preparation process of the 125 ℃ flame-retardant insulating material for the new energy automobile wire according to claim 1 is characterized in that: the temperature in the third step is 125-135 ℃.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210402472.4A CN115286863A (en) | 2020-03-20 | 2020-03-20 | Preparation method of insulating material for new energy automobile wire |
| CN202210407619.9A CN114933759A (en) | 2020-03-20 | 2020-03-20 | Preparation method of silane self-crosslinking low-halogen flame-retardant polyolefin cable material |
| CN202010200283.XA CN111205549B (en) | 2020-03-20 | 2020-03-20 | Preparation process of 125 ℃ flame-retardant insulating material for new energy automobile wire |
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| CN202010200283.XA CN111205549B (en) | 2020-03-20 | 2020-03-20 | Preparation process of 125 ℃ flame-retardant insulating material for new energy automobile wire |
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| CN202210407619.9A Division CN114933759A (en) | 2020-03-20 | 2020-03-20 | Preparation method of silane self-crosslinking low-halogen flame-retardant polyolefin cable material |
| CN202210402472.4A Division CN115286863A (en) | 2020-03-20 | 2020-03-20 | Preparation method of insulating material for new energy automobile wire |
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| CN202210407619.9A Pending CN114933759A (en) | 2020-03-20 | 2020-03-20 | Preparation method of silane self-crosslinking low-halogen flame-retardant polyolefin cable material |
| CN202010200283.XA Active CN111205549B (en) | 2020-03-20 | 2020-03-20 | Preparation process of 125 ℃ flame-retardant insulating material for new energy automobile wire |
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| CN202210407619.9A Pending CN114933759A (en) | 2020-03-20 | 2020-03-20 | Preparation method of silane self-crosslinking low-halogen flame-retardant polyolefin cable material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773574A (en) * | 2021-09-22 | 2021-12-10 | 广东祥利科技有限公司 | B1-grade flame-retardant irradiation crosslinking insulated cable material |
| CN113801395A (en) * | 2021-09-22 | 2021-12-17 | 广东祥利科技有限公司 | Preparation process of B1-grade flame-retardant low-smoke halogen-free insulated cable material |
| CN116948289A (en) * | 2023-08-04 | 2023-10-27 | 惠州国森灯树有限公司 | Integrated injection molding Christmas tree and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115512887A (en) * | 2022-10-08 | 2022-12-23 | 江苏远红电缆有限公司 | Crosslinked polyethylene heat-resistant insulated cable |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115286863A (en) | 2022-11-04 |
| CN111205549B (en) | 2022-06-17 |
| CN114933759A (en) | 2022-08-23 |
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