A halogen-free flame-retardant and cold-resistant PC material suitable for charging pile charging guns and its preparation method

A charging gun and charging pile technology, applied in the field of polymer functional composite materials, can solve the problems of large amount of addition, insufficient low-temperature impact, etc., and achieve the effect of less addition, less impact, and excellent impact performance

Active Publication Date: 2019-05-07
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these types of tougheners can significantly improve the normal temperature impact performance of PC materials, they generally have the disadvantages of large addition amount and insufficient low temperature impact.

Method used

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  • A halogen-free flame-retardant and cold-resistant PC material suitable for charging pile charging guns and its preparation method
  • A halogen-free flame-retardant and cold-resistant PC material suitable for charging pile charging guns and its preparation method
  • A halogen-free flame-retardant and cold-resistant PC material suitable for charging pile charging guns and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]Weigh raw materials according to Table 1 and put them into a high-speed mixer, and mix at high and low speeds for 4 minutes at room temperature. The mixed material is put into the hopper of a twin-screw extruder, melted and blended, extruded and granulated to obtain a composite material. The processing technology is as follows: twin-screw extruder, the temperature of the first zone is 220°C, the temperature of the second zone is 260°C, the temperature of the third zone is 260°C, the temperature of the fourth zone is 260°C, the temperature of the fifth zone is 250°C, the temperature of the sixth zone is 240°C, and the temperature of the seventh zone is 230°C , the eight-zone temperature is 230°C, and the head temperature is 260°C. Screw speed: 400r / min, vacuum: 600mmHg, cooling water temperature: 50°C, drying time: 2h, drying temperature: 100°C.

Embodiment 2

[0042] Weigh raw materials according to Table 1 and put them into a high-speed mixer, and mix at high and low speeds for 4 minutes at room temperature. The mixed material is put into the hopper of a twin-screw extruder, melted and blended, extruded and granulated to obtain a composite material. The processing technology is as follows: twin-screw extruder, the temperature of the first zone is 220°C, the temperature of the second zone is 260°C, the temperature of the third zone is 260°C, the temperature of the fourth zone is 260°C, the temperature of the fifth zone is 250°C, the temperature of the sixth zone is 240°C, and the temperature of the seventh zone is 230°C , the eight-zone temperature is 230°C, and the head temperature is 260°C. Screw speed: 400r / min, vacuum: 600mmHg, cooling water temperature: 50°C, drying time: 2h, drying temperature: 100°C.

Embodiment 3

[0044] Weigh raw materials according to Table 1 and put them into a high-speed mixer, and mix at high and low speeds for 4 minutes at room temperature. The mixed material is put into the hopper of a twin-screw extruder, melted and blended, extruded and granulated to obtain a composite material. The processing technology is as follows: twin-screw extruder, the temperature of the first zone is 220°C, the temperature of the second zone is 260°C, the temperature of the third zone is 260°C, the temperature of the fourth zone is 260°C, the temperature of the fifth zone is 250°C, the temperature of the sixth zone is 240°C, and the temperature of the seventh zone is 230°C , the eight-zone temperature is 230°C, and the head temperature is 260°C. Screw speed: 400r / min, vacuum: 600mmHg, cooling water temperature: 50°C, drying time: 2h, drying temperature: 100°C.

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Abstract

The invention discloses a halogen-free flame-retardant and cold-resistant PC material suitable for a charging pile charging gun and a preparation method thereof. The material comprises the following components in percentage by weight: 92-94 percent of polycarbonate polydimethylsiloxane, 0.1-0.12 percent of a flame retardant, 4-6 parts of a toughening agent, 0.5-0.6 percent of an anti-dripping agent, 0.1-0.2 percent of a main antioxidant, 0.3-0.4 percent of an auxiliary antioxidant, 0.4-0.5 percent of a lubricating agent and 0.3-0.5 percent of a weather resistance agent. A polycarbonate polydimethylsiloxane block copolymer is excellent in low temperature resistance as a dimethylsiloxane segment is introduced; meanwhile, polydimethylsiloxane can promote PC carbon forming during combustion, has a good synergistic flame-retardant effect together with an additive type flame retardant agent and can effectively reduce the consumption of the additive type flame retardant agent. The halogen-free flame-retardant and cold-resistant PC material suitable for the charging pile charging gun is prepared by taking the polycarbonate polydimethylsiloxane as a main body and through the addition of the sulfonate flame retardant, the organic silicon type toughening agent, the anti-dripping agent, the antioxidant, the weather resistance agent, the lubricating agent and the melt blending of a double-screw extruder.

Description

technical field [0001] The invention belongs to the field of polymer functional composite materials, and in particular relates to a halogen-free flame-retardant and cold-resistant PC material suitable for charging guns of charging piles and a preparation method thereof. Background technique [0002] Electric vehicles have the characteristics of zero emission, high energy efficiency, low noise, etc., and are strongly supported by national policies and are developing rapidly. However, the current charging infrastructure for electric vehicles is not perfect, which limits the popularity of charging vehicles. Charging gun is a crucial part of electric vehicle charging infrastructure. Due to the particularity and difference of its use environment, it puts forward almost strict requirements for its materials: good mechanical properties make it resistant to falling and rolling; excellent Low temperature resistance to meet the use requirements under different climatic conditions; ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/10C08L43/04C08L27/18C08K5/42C08K5/134C08K5/526C08K5/103C08K5/3475
CPCC08L83/10C08L2201/02C08L2201/22C08L2203/20C08L2205/03C08L43/04C08L27/18C08K5/42C08K5/1345C08K5/526C08K5/103C08K5/3475
Inventor 郝建鑫曾德明黄泽彬郝源增陈瑜邓爵安任萍李齐添
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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