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Charging wire material for electric vehicle and preparation method thereof

A technology for electric vehicles and wires, applied in plastic/resin/wax insulators, organic insulators, etc., can solve problems such as softness and easy curling, surface wear-resistant processing and molding, recyclability, fire hazard, etc., to avoid The effect of excessive melt viscosity, avoiding reinvestment and reducing costs

Active Publication Date: 2016-08-17
NANTONG POLYMAX ELASTOMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the charging wire materials for electric vehicles still use halogen-containing PVC base material as the wire sheath material. Toxic hydrogen chloride gas has a greater fire hazard, which poses a great potential threat to many electric vehicle users during use
At present, although many other materials have been developed for electric vehicle charging wire materials, such as polyolefin cross-linked materials, vulcanized rubber materials, elastomer materials, etc. , surface wear resistance, easy processing and molding, recyclable, etc.

Method used

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  • Charging wire material for electric vehicle and preparation method thereof
  • Charging wire material for electric vehicle and preparation method thereof
  • Charging wire material for electric vehicle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1: The TPE-S substrate is composed of N250 white oil-extended SEBS-G1654 and PP-R370Y, and the composite system composed of hexaphenoxycyclotriphosphazene and organically modified MDH H7C / 2 is flame-retardant agent, the ratio of the above two flame retardants is 1:1, the PPO-S201A of Japan Asahi Kasei Co. 1 in. From the test results of Example 1 in Table 4, it can be found that the prepared flame-retardant composite material and the extruded wire have good mechanical properties and flame-retardant properties, the tensile strength of the wire is 16.5Mpa, the elongation at break is 413%, and the UL94 vertical burning The test result is V-0 level, and the UL1581 test result is VW-1 level. After aging at 136°C for 168 hours, the retention rate of tensile strength is 92%, and the retention rate of elongation at break is 94%, both of which greatly exceed the provisions of the UL1581 thermal aging standard (≥75%); there is no cracking phenomenon after thermal shock, a...

Embodiment 2

[0061] Example 2: SEBS-G1650 is used instead of SEBS-G1654, and the base material is composed of N250 white oil extension and PP-R370Y, and the composition of other components is equal to that of Example 1. From the test results of Example 2 in Table 4, it can be found that compared with Example 1, the tensile strength of the prepared flame-retardant composite material and the extruded wire, and the strength retention rate after aging are slightly reduced, but they are still far from It is higher than the lower limit requirement of the UL standard, except that the melt index of the material increases from 2.5g / 10min to 8.6g / 10min, and other physical properties generally change little. Overall, the wires and materials have excellent comprehensive properties, meeting the requirements of charging wires for electric vehicles. At the same time, compared with Example 1, the fluidity of the material in Example 2 is increased, and it is easier to extrude wires with thinner walls.

Embodiment 3

[0062] Example 3: SEBS-G1650 is used to replace 50% of the added amount of SEBS-G1654, and the TPE-S substrate is composed of white oil N250 oil-extended and PP-R370Y, and the composition of other components is equivalent to that of Example 1 and Example 2 composition. From the test results of Example 3 in Table 4, it can be found that the properties of the prepared flame-retardant composite material and the extruded wire are between those of Example 1 and Example 2, and the overall performance is good, which fully meets the requirements of the charging wire for electric vehicles. Requirements.

[0063] Comparative Example C-1: On the basis of Example 3, keep the total amount of hexaphenoxycyclotriphosphazene and MDH H7C / 2, and only change the addition ratio of the two flame retardants (from the original 1:1 to 2:1), and the other components and ratios remained unchanged. From the test results of Comparative Example C-1 in Table 5, it can be found that the flame-retardant pe...

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Abstract

The invention discloses a charging wire material for electric vehicles and a preparation method thereof. The charging wire material is prepared by the following steps: adding a plastic elastic soft material and white oil to a high-speed mixer and stirring so that the white oil is completely and uniformly absorbed; sequentially adding an activated halogen-free composite flame retardant, 0-20 parts of a charcoal forming agent, a smoke suppressor, an oxidant, a lubricant, a wear-resistant agent, a coupling agent and a bulking agent to the high-speed mixer and mixing; transferring mixed materials to a reactant twin-screw extruder hopper, and implementing melt-blending, extrusion and granulation at processing temperature of 150-250 DEG C to obtain a product. The fire-resistant wire composite material prepared by the invention has the advantages of being halogen-free, low in smoke, soft and easy to curl, wear resistant on surface, easy to process and form, and recyclable; the composite material can better meet using requirements of charging wire material for current electric vehicles.

Description

technical field [0001] The invention relates to a charging wire material for an electric vehicle and a preparation method thereof. Background technique [0002] In the past 30 years, the world economy has developed rapidly, and at the same time, the environmental protection problems facing human beings have become increasingly severe. In the field of the global automobile industry, the pollution caused by automobile exhaust has attracted widespread attention. Many countries have paid attention to the research and development and promotion of new energy vehicles. Many developed countries have successively launched electric vehicles of different brands and built them within their own Car charging stations meet the needs of the growing electric vehicle market. At present, most of the charging wire materials for electric vehicles still use halogen-containing PVC base material as the wire sheath material. Toxic hydrogen chloride gas has a greater fire hazard, which is a great p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L23/12C08L23/16C08L85/02C08L51/00C08L71/12C08K13/06C08K9/06C08K9/04C08K3/22C08K3/36C08K3/28C08K5/01B29C47/92H01B3/44B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 王立春陆云许铁良刘霞
Owner NANTONG POLYMAX ELASTOMER TECH