Anti-static PE composite material

A composite material and antistatic technology, applied in the field of antistatic PE composite materials, can solve the problems of low carbon black content and application limitations, and achieve the effect of reducing particle size, improving mechanical properties, and promoting heterogeneous nucleation.

Inactive Publication Date: 2019-06-07
任素飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its electrical insulation is very good, and its surface resistivity is 10 13 -10 15 Among them, the application of unmodified PE in antistatic and conductive materials has been greatly restricted
[0003] Use incompatible thermoplastic resin PE / thermosetting resin epoxy resin as a two-phase polymer matrix, and compound it with carbon black to obtain an antistatic PE composite material; and also use the different affinity between the components to rely on the glass fiber. The overlapping between them forms a more effective conductive path, and an antistatic PE composite material with low carbon black content and good electrical and mechanical properties is obtained. The relevant literature has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh 60 parts of PE, 16 parts of epoxy resin, 3 parts of PBT, 8 parts of glass fiber, 20 parts of carbon black, 0.1 part of PE-g-MAH, 0.1 part of Irganox168, 0.1 part of calcium stearate, mix and stir Uniformly, to obtain a mixture;

[0026] (2) extruding and granulating the mixture obtained in the step (1) to obtain the PE composite material P1.

[0027] Among them, the twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first temperature zone is 140°C, the temperature of the second temperature zone is 170°C, the temperature of the third temperature zone is 170°C, and the temperature of the fourth temperature zone is 170°C. The temperature in the temperature zone is 170°C, the temperature in the fifth temperature zone is 170°C, the temperature in the sixth temperature zone is 170°C, the head temperature of the twin-screw extruder is 170°C, and the screw speed is 200r / min.

Embodiment 2

[0029] (1) Weigh 80 parts of PE, 24 parts of epoxy resin, 5 parts of PBT, 12 parts of glass fiber, 30 parts of carbon black, 0.3 part of PE-g-MAH, 0.1 part of Irganox1010, 0.2 part of Irganox1330, 0.2 part of Irganox168, 0.3 Parts of sodium stearate are mixed and stirred evenly to obtain a mixture;

[0030] (2) Extruding and granulating the mixture obtained in step (1) to obtain PE composite material P2.

[0031] Among them, the twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first temperature zone is 160°C, the temperature of the second temperature zone is 200°C, the temperature of the third temperature zone is 200°C, and the temperature of the fourth temperature zone is 200°C. The temperature in the temperature zone is 200°C, the temperature in the fifth temperature zone is 200°C, the temperature in the sixth temperature zone is 200°C, the head temperature of the twin-screw extruder is 200°C, and the screw speed is 260r / min.

Embodiment 3

[0033] (1) Weigh 70 parts of PE, 20 parts of epoxy resin, 4 parts of PBT, 10 parts of glass fiber, 25 parts of carbon black, 0.2 parts of PE-g-MAH, 0.3 parts of Irganox1330, 0.2 parts of potassium stearate, mix and stir Uniformly, to obtain a mixture;

[0034] (2) Extruding and granulating the mixture obtained in the step (1) to obtain the PE composite material P3.

[0035] Among them, the twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first temperature zone is 150°C, the temperature of the second temperature zone is 185°C, the temperature of the third temperature zone is 185°C, and the temperature of the fourth temperature zone is 185°C. The temperature in the temperature zone is 185°C, the temperature in the fifth temperature zone is 185°C, the temperature in the sixth temperature zone is 185°C, the head temperature of the twin-screw extruder is 185°C, and the screw speed is 230r / min.

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Abstract

The invention relates to an anti-static PE composite material. The anti-static PE composite material is prepared from the following components: in parts by weight, 60-80 parts of PE, 16-24 parts of epoxy resin, 3-5 parts of PBT, 0.1-0.3 part of a compatibilizer, 8-12 parts of treated glass fiber, 20-30 parts of carbon black, 0.1-0.5 part of an antioxidant and 0.1-0.3 part of a lubricant. Accordingto the technical scheme, surface treatment is performed on the adopted glass fiber with a silane coupling agent, and after the ethoxy groups of the coupling agent molecules are hydrolyzed, firm bonding is formed between the hydrolyzed ethoxy groups and hydroxyl groups on the surface of the glass fiber; and amino groups at the other end can be reacted with epoxy groups in epoxy resin so as to formchemical bonds, and high interfacial bonding is formed between the epoxy resin and the glass fiber; and sufficient overlapping can be formed between the glass fiber, and formation of a continuous conductive path is ensured, so that the resistivity of the composite system is reduced significantly.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antistatic PE composite material. Background technique [0002] Polyethylene (PE) is a general-purpose plastic with excellent performance. It has high chemical stability, good heat resistance, and chemical corrosion resistance. It is widely used in various fields such as automobiles and home appliances. . Its electrical insulation is very good, and its surface resistivity is 10 13 -10 15 Among them, the application of unmodified PE in antistatic and conductive materials has been greatly restricted. [0003] Use incompatible thermoplastic resin PE / thermosetting resin epoxy resin as a two-phase polymer matrix, and compound it with carbon black to obtain an antistatic PE composite material; and also use the different affinity between the components to rely on the glass fiber The overlapping between them forms a more effective conductive path, and an antistatic PE co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L63/00C08L67/02C08L51/06C08K13/06C08K9/06C08K9/00C08K7/14C08K3/04C08K5/134C08K5/526C08K5/098
Inventor 任素飞
Owner 任素飞
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