Charging wire material for electric vehicles and preparation method thereof

A technology for electric vehicles and electric wires, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems that are not fully soft and easy to curl, surface wear-resistant processing, recyclable, fire hazards, etc., to avoid The effect of excessive melt viscosity, avoiding reinvestment, moderate price

Active Publication Date: 2014-08-06
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 us

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1: N250 white oil-extended SEBS-G1654 and PP-R370Y are used to form a TPE-S substrate, and a composite system composed of hexaphenoxy cyclotriphosphazene and organically modified MDH H7C / 2 is flame retardant The ratio of the above two flame retardants is 1:1, the PPO-S201A of Japan's Asahi Kasei company is used as the char-forming agent, and the silane-modified nano-SiO2 is used as the anti-wear agent. The other components are detailed in the examples in Table 2. 1 in. From the test results of Example 1 in Table 4, it can be found that the prepared flame-retardant composite material and extruded wire have good mechanical properties and flame-retardant properties, the wire tensile strength is 16.5Mpa, the elongation at break is 413%, and UL94 vertical burning The test result is V-0, and the UL1581 test result is VW-1. The retention rate of the tensile strength of the wire after 168 hours aging at 136℃ is 92%, and the retention rate of elongation at break is 94%, ...

Embodiment 2

[0061] Example 2: Using SEBS-G1650 instead of SEBS-G1654, N250 white oil-filled oil and PP-R370Y form the base material, and the composition of other components is equivalent 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 Higher than the lower limit of the UL standard, except that the melt index of the material is increased from 2.5g / 10min to 8.6g / 10min, other physical properties generally change little. In general, wires and materials have excellent comprehensive performance, which meets 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, making it easier to extrude wires with thinner walls.

Embodiment 3

[0062] Example 3: Using SEBS-G1650 instead of 50% of the added amount of SEBS-G1654, oil-extended white oil N250 and PP-R370Y form a TPE-S substrate, and the other components are equivalent to those 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 the physical properties of Example 1 and Example 2, and the overall performance is good, which fully meets the requirements of charging wires for electric vehicles. Requirements.

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

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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 electric vehicles 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 problem facing mankind has become increasingly severe. In the global automotive industry, the pollution caused by automobile exhaust has attracted widespread attention. The research and development and promotion of new energy vehicles have received attention from many countries. Many developed country automobile manufacturers have successively launched electric vehicles of different brands and built them within their own countries. Vehicle 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 substrates as their wire sheath materials. Although this kind of charging wire has good insulation, ...

Claims

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Application Information

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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
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