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PS (polystyrene) composite material

A composite material and fiber technology, applied in the field of PS composite materials, can solve the problems of insufficient mechanical properties, antistatic properties and flame retardant properties, and achieve the effects of strengthening antistatic properties, improving tensile strength, and improving flame retardant properties.

Inactive Publication Date: 2019-04-23
吴雅萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a PS composite material to solve the problems of insufficient mechanical properties, antistatic properties and flame retardant properties of PS materials in the prior art

Method used

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  • PS (polystyrene) composite material
  • PS (polystyrene) composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Weigh 80 parts of PS, 3 parts of PTFE, 20 parts of PPTA fiber, 10 parts of antistatic masterbatch, 0.1 part of Irganox168, 0.1 part of zinc stearate, mix and stir evenly to obtain a mixture;

[0028] 2) Extrude and granulate the mixture obtained in step 1) to obtain a PS composite material, wherein the PPTA fiber is added separately from the side feed.

[0029] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 160°C, the temperature of the second zone is 210°C, the temperature of the third zone is 210°C, the temperature of the fourth zone is 210°C, the temperature of the fifth zone is 210°C, the temperature of the sixth zone is 210°C, The head temperature is 210°C, and the screw speed is 200r / min.

Embodiment 2

[0031] 1) Weigh 100 parts of PS, 5 parts of PTFE, 30 parts of PPTA fiber, 16 parts of antistatic masterbatch, 0.1 part of Irganox168, 0.2 part of Irganox1010, 0.2 part of Irganox1330, 0.15 part of sodium stearate, 0.15 part of zinc stearate and mix and stir evenly to obtain a mixture;

[0032] 2) Extrude and granulate the mixture obtained in step 1) to obtain a PS composite material, wherein the PPTA fiber is added separately from the side feed.

[0033] Among them, the temperature and screw speed of each zone of the twin-screw extruder are: the temperature of the first zone is 180°C, the temperature of the second zone is 230°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 230°C, the temperature of the fifth zone is 230°C, and the temperature of the sixth zone is 230°C. The head temperature is 230°C, and the screw speed is 280r / min.

Embodiment 3

[0035] 1) Weigh 90 parts of PS, 4 parts of PTFE, 25 parts of PPTA fiber, 14 parts of antistatic masterbatch, 0.1 part of Irganox168, 0.2 part of Irganox1010, 0.1 part of sodium stearate, 0.1 part of zinc stearate, mix and stir evenly, get the mixture;

[0036] 2) Extrude and granulate the mixture obtained in step 1) to obtain a PS composite material, wherein the PPTA fiber is added separately from the side feed.

[0037] Among them, the temperature and screw speed of each zone of the twin-screw extruder are: the temperature of the first zone is 170°C, the temperature of the second zone is 220°C, the temperature of the third zone is 220°C, the temperature of the fourth zone is 220°C, the temperature of the fifth zone is 220°C, and the temperature of the sixth zone is 220°C. The head temperature is 220°C; the screw speed is 240r / min.

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Abstract

The invention relates to a PS (polystyrene) composite material. The composite material comprises, by weight, 80-100 parts of PS, 3-5 parts of PTFE (polytetrafluoroethylene), 20-30 parts of PPTA (polyparaphenylene terephthalamide) fibers, 10-16 parts of antistatic masterbatches, 0.1-0.5 part of antioxidant and 0.1-0.3 part of lubricant. The PPTA fibers are treated by a carbonate coupling agent andhave three functions: the PPTA fibers can be built into a 'network', and the antistatic masterbatches and the 'network' can easily form a conductive network to further enhance the antistatic propertyof the PS composite material; the PPTA fibers can enhance the tensile strength, bending strength and impact strength of the PS composite material; the PPTA fibers have a certain flame retardancy, andthe flame retardant property of the PS composite material is enhanced through addition of the PPTA fibers.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a PS composite material. Background technique [0002] Polystyrene (PS) has the advantages of light weight, non-toxic, odorless, good chemical stability, insoluble in common solvents at room temperature, and low water absorption. [0003] Although the comprehensive properties of PS are excellent, in some special application fields, there are high requirements for mechanical properties, antistatic properties, and flame retardant properties. Ordinary PS cannot meet this requirement, which greatly limits the application of PS composite materials. application range. [0004] How to improve the deficiencies of PS materials is a subject that researchers in this field have been working on. Contents of the invention [0005] The purpose of the present invention is to provide a PS composite material to solve the problems of insufficient mechanical properties, antistatic properties and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L27/18C08L77/10
CPCC08L25/06C08L2201/02C08L2201/04C08L2205/025C08L2205/035C08L2205/16C08L27/18C08L77/10
Inventor 吴雅萍
Owner 吴雅萍