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Polyphenylene sulfide flame-retardant material for upper cover of battery pack of new energy vehicle and preparation method of polyphenylene sulfide flame-retardant material

A technology of new energy vehicles and polyphenylene sulfide, which is applied in the field of engineering plastic modification, can solve the problems of reducing the flame retardancy of PPS, and achieve the effects of good flame retardancy, strong operability and excellent flame resistance

Pending Publication Date: 2021-12-21
NANJING JULONG SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the mechanical properties of PPS reinforced with long glass fibers are improved, there is a "wick effect" in the PPS material of long glass fibers, which reduces the flame retardancy of PPS.

Method used

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  • Polyphenylene sulfide flame-retardant material for upper cover of battery pack of new energy vehicle and preparation method of polyphenylene sulfide flame-retardant material
  • Polyphenylene sulfide flame-retardant material for upper cover of battery pack of new energy vehicle and preparation method of polyphenylene sulfide flame-retardant material
  • Polyphenylene sulfide flame-retardant material for upper cover of battery pack of new energy vehicle and preparation method of polyphenylene sulfide flame-retardant material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]According to the PPS-based flame retardant masterbatch formula, the raw materials are weighed and mixed at high speed. The flame retardant is nitrogen-based flame retardant, and the three-screw extruder is used to plasticize, blend and granulate at a temperature of 280-330°C to obtain a nitrogen-based flame retardant. PPS-based flame retardant masterbatch; weigh 75.5 parts of raw material PPS resin, 45 parts of continuous basalt fiber, 3 parts of POE grafted maleic anhydride with a grafting rate of 0.5-1%, 1 part of antioxidant 1024 and nitrogen system 4 parts of PPS-based flame retardant masterbatch, and use a high-speed mixer to mix it evenly, control the speed of the mixer to 300r / min, and the mixing time is 10min; check the equipment and the rotation of each part are in good condition, start the temperature control switch and control Adjust the temperature gauge to the working temperature, and the temperature of each zone of the twin-screw extruder is as follows: the ...

Embodiment 2

[0034] According to the formula of PPS-based flame retardant masterbatch, the raw materials are weighed and mixed at high speed, and the flame retardant is phosphorus-based flame retardant, and the three-screw extruder is used to plasticize, blend and granulate at a temperature of 280-330°C to obtain a phosphorus-based flame retardant. PPS-based flame retardant masterbatch; weigh 62.6 parts of raw material PPS resin, 48 parts of continuous basalt fiber, 4 parts of POE grafted maleic anhydride with a grafting rate of 0.5-1%, 1 part of antioxidant 1024 and phosphorus system 4.4 parts of PPS-based flame retardant masterbatch, and use a high-speed mixer to mix it evenly, control the speed of the mixer to 250r / min, and the mixing time is 13min; check the equipment and the rotation of each part, start the temperature control switch and control Adjust the temperature gauge to the working temperature, and the temperature of each zone of the twin-screw extruder is as follows: the temper...

Embodiment 3

[0036] According to the PPS-based flame retardant masterbatch formula, the raw materials are weighed and mixed at high speed, and the flame retardant is mixed with nitrogen-based flame retardant and phosphorus-based flame retardant. Mix and granulate to obtain nitrogen-phosphorus compound system PPS-based flame-retardant masterbatch; weigh 75.5 parts of raw material PPS resin, 45 parts of continuous basalt fiber, 3 parts of n-butyl acrylate-glycidyl ester, antioxidant 6081 4 parts and 4 parts of PPS-based flame-retardant masterbatch of nitrogen-phosphorus compound system, and use a high-speed mixer to mix it evenly. The speed of the mixer is controlled at 200r / min, and the mixing time is 15min; Start the temperature control switch and adjust the temperature control meter to the working temperature. The temperature of each zone of the twin-screw extruder is as follows: the temperature of the feeding section is 190°C, the temperature of the barrel is 300-340°C, the temperature of...

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Abstract

The invention provides a continuous basalt fiber reinforced polyphenylene sulfide flame-retardant material for a new energy vehicle battery pack upper cover and a preparation method of the continuous basalt fiber reinforced polyphenylene sulfide flame-retardant material, and relates to the technical field of engineering plastic modification. The flame-retardant material is prepared from 47 to 88 parts of PPS resin, 45 to 50 parts of continuous basalt fiber, 3 to 5 parts of compatilizer, 1 to 2 parts of antioxidant and 4 to 5 parts of PPS-based flame-retardant master batch. The preparation method comprises the following steps: firstly, preparing the PPS-based flame-retardant master batch; secondly, mixing the PPS resin, the compatilizer and the antioxidant in batches to obtain a premix; and finally, adding the premix from the main feed and the PPS-based flame-retardant master batch into a double-screw extruder from the side feed, co-extruding the premix and continuous basalt fibers into strips through a dipping mold, and cooling, pulling and pelletizing to obtain the flame-retardant material. The continuous basalt fiber reinforced PPS flame-retardant material disclosed by the invention has the characteristics of high mechanical strength, good flame retardance and the like, meets the standard requirements of an upper cover material of a battery pack of a new energy vehicle, and is beneficial to realizing light weight of battery pack parts.

Description

technical field [0001] The invention relates to the technical field of modification of engineering plastics, in particular to a polyphenylene sulfide flame retardant material for the upper cover of a battery pack of a new energy vehicle and a preparation method thereof. Background technique [0002] In order to deal with environmental pollution and resource consumption, new energy vehicles have emerged as the times require. New energy vehicles have many advantages such as energy saving, emission reduction, and environmental protection, and they also represent the development direction of the world's automobile industry. The core of new energy vehicles is the three-electric system, including electric drive, battery and electronic control. Power batteries are currently an important power source for electric vehicles. The load-bearing case of the power battery pack of a new energy vehicle generally includes a lower case and an upper cover, and the lower case is also called a tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L51/06C08K7/10C08J3/22
CPCC08L81/02C08J3/226C08L2201/02C08J2381/02C08J2481/02C08L51/06C08K7/10
Inventor 孟祥军李兰军刘曙阳陆体超李茂彦王琪
Owner NANJING JULONG SCI&TECH CO LTD