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TPU sheath material for charging cables as well as preparation and application of TPU sheath material

A charging cable and sheath material technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of easy cracking of TPU sheath material, poor matte effect, easy to be bitten by mice, etc. Achieve the effect of improving anti-cracking performance, excellent effect, and preventing rat bites

Pending Publication Date: 2021-02-19
SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to propose a TPU sheath material for charging cables and its preparation and application, aiming at solving the problems that the existing TPU sheath materials for charging cables are easy to crack, easy to be bitten by mice, and the effect of fog is not good. problem, significantly improve the anti-cracking performance of TPU sheath material, and effectively prevent mice from biting at the same time, the surface matte effect is excellent

Method used

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  • TPU sheath material for charging cables as well as preparation and application of TPU sheath material

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preparation example Construction

[0062] In a second aspect, a method for preparing a TPU sheathing material for a charging cable in the first aspect is provided, comprising the steps of:

[0063] S1. Mix the raw materials except thermoplastic polyurethane TPU evenly to obtain the mixture;

[0064] S2. Drying the thermoplastic polyurethane TPU;

[0065] S3. Mix the above mixture and the dried thermoplastic polyurethane TPU evenly, extrude and granulate through a twin-screw extruder to prepare the flame-retardant and anti-cracking TPU sheath material for the charging cable.

[0066] Wherein, the drying treatment temperature in step S2 is 70-100°C, and the drying treatment time is 4-8h; the extrusion temperature of the twin-screw extruder in step S3 is 160-200°C, such as 160°C, 165°C, 170°C °C, 175°C, 180°C, 185°C, 190°C, 200°C and any value between them.

[0067] In the third aspect, an application of the TPU sheathing material for charging cables described in the first aspect to electric vehicle charging cab...

Embodiment 1

[0070] A TPU sheathing material for a charging cable, prepared from the following raw materials in parts by weight: 50 parts of thermoplastic polyurethane TPU; 7 parts of modifier; 3 parts of compatibilizer; 35 parts of halogen-free flame retardant; 8 parts of flame retardant synergist 1 part; lubricant 1 part; antioxidant 1 part; rodent-proof agent 1.5 parts.

[0071]Wherein, the thermoplastic polyurethane TPU is polyether type TPU; the modifier is ethylene-methyl acrylate copolymer (EMMA); the compatibilizer is ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer ( EVA-MAH); The halogen-free flame retardant is composed of nitrogen-based halogen-free flame retardant and phosphorus-based halogen-free flame retardant; the flame-retardant synergist is nano-montmorillonite; the nitrogen-based halogen-free flame retardant The flame retardant is melamine polyphosphate; the phosphorus-based halogen-free flame retardant is aluminum diethylphosphinate; the lubricant is ...

Embodiment 2

[0078] A TPU sheathing material for a charging cable, prepared from the following raw materials in parts by weight: 20 parts of thermoplastic polyurethane TPU; 5 parts of modifier; 10 parts of compatibilizer; 10 parts of halogen-free flame retardant; 5 parts of flame retardant synergist parts; 0.5 parts of lubricant; 0.5 parts of antioxidant; 0.5 parts of anti-rodent agent.

[0079] Wherein, the thermoplastic polyurethane TPU is polyester poly TPU; the modifying agent is ethylene-vinyl acetate copolymer (EVA); the compatibilizer is ethylene-octene copolymer grafted maleic anhydride copolymer ( POE-MAH) and ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer (EVA-MAH); the halogen-free flame retardant is composed of a nitrogen-based halogen-free flame retardant and a phosphorus-based halogen-free flame retardant; the The flame retardant synergist is kaolin; the nitrogen-based halogen-free flame retardant is melamine cyanurate; the phosphorus-based halogen-free f...

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Abstract

The invention discloses a TPU sheath material for charging cables as well as preparation and application of the TPU sheath material. According to the technical scheme, thermoplastic polyurethane (TPU)is adopted as a matrix, a modifier, a compatilizer, a halogen-free flame retardant, a flame retardant synergist, a lubricant, an antioxidant and a rat-proof agent are added, all the components are matched with one another to achieve a synergistic effect, so that the cable sheath material can ensure the original good processability and elasticity of thermoplastic polyurethane (TPU) and has good mechanical properties, heat resistance, low temperature resistance, wear resistance, chemical liquid resistance, water resistance and flame retardancy, the cracking resistance of the TPU sheath materialis also significantly improved, and the material is effectively prevented from being bitten by rats and has an excellent surface matte effect.

Description

technical field [0001] The invention relates to the field of cables, in particular to a TPU sheathing material for charging cables and its preparation and application. Background technique [0002] The cable used for electric vehicle charging is a kind of cable. In the face of increasingly serious energy, climate and environmental problems, the development of new energy vehicles has become the consensus of the world. Charging cables have emerged with the era of electric vehicles. Electric vehicle charging cables The structure of the cable is different from ordinary cables, and the harsh environment also has higher performance requirements for it. [0003] Thermoplastic polyurethane (TPU) is a kind of high polymer containing carbamate group obtained by the reaction of diisocyanate, macromolecular diol and small molecule chain extender. TPU material has high mechanical strength, tear resistance, wear resistance and bending characteristics, and has excellent high and low tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L23/08C08L51/06C08L83/04C08L23/16C08L53/02C08L51/00C08L23/06C08K13/02C08K3/34C08K5/52C08K5/5313C08K5/134C08K5/20C08K5/57C08K5/44C08K5/3492C08K3/32C08K5/098C08K5/526C08K3/38C08K5/3432H01B3/30
CPCC08L75/08C08L75/06H01B3/302C08L2203/202C08L2207/04C08L2201/02C08L2201/08C08K2201/011C08L2205/025C08L2205/035C08K2003/387C08K2003/323C08K2201/014C08L2205/02C08L23/0869C08L51/06C08L83/04C08K13/02C08K3/346C08K5/5205C08K5/5313C08K5/1345C08K5/20C08K5/57C08K5/44C08L23/0853C08K5/34928C08K3/32C08K5/098C08K5/526C08L23/16C08L53/025C08L51/006C08L23/06C08K3/38C08K5/3432
Inventor 郑海梅陈明双刘杨薄强龙熊喜科王志强
Owner SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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