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Poly(aryl ether nitrile) composite material and its preparation method

A technology of polyarylether nitrile and composite materials, which is applied in the field of polymer nanocomposites, can solve the problems of polyarylether nitrile wear resistance, reduction of polyarylether nitrile comprehensive performance, poor processing fluidity and wear resistance, etc. , to achieve the effect of reducing application cost, eliminating internal stress, improving mechanical properties and wear resistance

Active Publication Date: 2014-01-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High molecular weight polyarylether nitrile has higher mechanical strength and heat resistance, but poor processing fluidity and wear resistance. Although traditional plasticizers and fillers can improve its fluidity, they are often due to compatibility, resistance Poor heat resistance and other reasons affect the main performance of polyarylether nitrile materials, which will reduce the overall performance of polyarylether nitrile, and cannot solve the problem of poor wear resistance of polyarylether nitrile

Method used

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  • Poly(aryl ether nitrile) composite material and its preparation method
  • Poly(aryl ether nitrile) composite material and its preparation method
  • Poly(aryl ether nitrile) composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 Preparation and performance of polyarylether nitrile composite material

[0042]Weigh 90 kg and 10 kg of polyarylether nitrile resin and graphene microflakes respectively, mix the polyarylether nitrile resin and graphene microflakes on a high-speed mixer, and then put them into a twin-screw extruder for melt blending and extrusion granulation A polyarylether nitrile composite material was prepared, wherein the melting temperature of the twin-screw extruder was 370°C. The physical performance indexes of the obtained polyarylether nitrile composite material are shown in Table 1.

Embodiment 2

[0043] Embodiment 2 Preparation and performance of polyarylether nitrile composite material

[0044] Method 1: Direct melt blending method

[0045] Weigh 95 kg and 5 kg of polyarylether nitrile resin and graphene microflakes respectively, mix polyarylether nitrile and graphene microflakes on a high-speed mixer, and then put them into a twin-screw extruder for melt blending and extrusion granulation. A polyarylether nitrile composite material was obtained, wherein the melting temperature of the twin-screw extruder was 370°C. The physical performance indexes of the obtained polyarylether nitrile composite material are shown in Table 1.

[0046] Method 2: masterbatch dilution method

[0047] (1) Preparation of polyarylether nitrile / graphene microchip masterbatch

[0048] Weigh 90 kg and 10 kg of polyarylether nitrile resin and graphene microflakes respectively, mix polyarylether nitrile and graphene microflakes on a high-speed mixer, and then put them into a twin-screw extrude...

Embodiment 3

[0051] Example 3 Preparation and performance of polyarylether nitrile composite material

[0052] Method 1: Direct Melt Blending

[0053] Weigh 99 kg and 1 kg of polyarylether nitrile resin and graphene microflakes respectively, mix polyarylether nitrile and graphene microflakes on a high-speed mixer, and then put them into a twin-screw extruder for melt blending and extrusion granulation. A polyarylether nitrile composite material was obtained, wherein the melting temperature of the twin-screw extruder was 370°C. The physical performance indexes of the obtained polyarylether nitrile composite material are shown in Table 1.

[0054] Method 2: masterbatch dilution method

[0055] The weight of polyarylether nitrile / graphene microchip masterbatch and polyarylether nitrile in embodiment 2 method two steps (2) is changed into 10 kilograms and 90 kilograms, and melting temperature is changed into 350 ℃; Other steps are all with implementation Example 2 is the same. The physical...

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Abstract

The invention belongs to the field of polymeric nanocomposites and specifically relates to a poly(aryl ether nitrile) composite material and its preparation method. A first technical problem to be solved in the invention is to provide the poly(aryl ether nitrile) composite material with good mechanical strength and wear resistance. The poly(aryl ether nitrile) composite material is prepared by adding graphene microchips into poly(aryl ether nitrile) resin, wherein, the addition amount of the graphene microchips is no more than 10% of the weight of the poly(aryl ether nitrile) composite material. The poly(aryl ether nitrile) composite material prepared in the invention has excellent comprehensive performance: a tensile strength the material is 80 to 120 MPa, elongation at break is 8 to 25%, a flexural strength is 120 to 170 MPa, a flexural modulus is 3200 to 4400 MPa, an impact strength is 6 to14 J / m<2>, the coefficient of friction is 0.3 to 0.5, and resistance to a high temperature as high as 500 DEG C is obtained; the composite material not only has substantially improved mechanical properties and wear resistance but also reduces application cost of poly(aryl ether nitrile) products.

Description

technical field [0001] The invention belongs to the field of macromolecular nanocomposite materials, in particular to polyarylether nitrile composite materials and a preparation method thereof. Background technique [0002] Polyarylene ether nitriles (PEN) is a kind of semi-crystalline polymer with nitrile groups on the side chain, which was first developed for the needs of national defense and cutting-edge technology since the 1980s. It is a kind of structural polymer material with excellent comprehensive performance, which has excellent characteristics such as high heat resistance, flame retardancy, mechanical strength, UV protection and creep resistance. Such excellent properties combined with the ideal semi-crystalline melt processing feasibility have generated great interest in the application of polyarylene ether nitrile in aerospace composites, electronic packaging materials, and automotive parts. [0003] The domestic research on poly(arylene ether nitrile) started ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/10C08K3/04
Inventor 刘孝波杨旭林郭恒杨建邹延珂王子成詹迎青
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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