Polyamide composite material and its preparation method

A composite material, polyamide technology, applied in the field of polyamide materials, can solve the problems of carbon fiber advantages not fully reflected, high cost of epoxy resin, poor material performance, etc., to solve dimensional instability, ultra-high strength and Good modulus and dimensional stability

A composite material, polyamide technology, applied in the field of polyamide materials, can solve the problems of carbon fiber advantages not fully reflected, high cost of epoxy resin, poor material performance, etc., to solve dimensional instability, ultra-high strength and Good modulus and dimensional stability

CN1765989AInactive Publication Date: 2006-05-03SHANGHAI SUNNY
0 Cites 20 Cited by

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-2

[0030] Nylon 66 is made of nylon 66 resin chips with an apparent viscosity of 2.8, the carbon fiber is T300 from Toray, Japan, the compatibilizer is CMG9801 from Shanghai Rizhisheng Company, the antioxidant is 1098 / 168 (1:1) compound, and the lubricant is The agent is high molecular weight polysiloxane.

[0031] raw material name

Proportion 1 (wt%)

Proportion 2 (wt%)

PA66 slice

74

60

T300

20

31

CMG9801

5

8

1098 / 168(1∶1)

0.5

0.5

High Molecular Weight Polysiloxane

0.5

0.5

[0032] Put the above components except carbon fiber into a high-speed mixer and mix for 4 minutes, discharge, and then extrude and granulate with a screw extruder together with carbon fiber. The processing temperature is 270 ° C, and the screw speed is 250 rpm.

[0033] The product performance contrast of sample 1, sample 2 and SILMID 6 CV20 made according to embodiment 1, embodiment 2

[0034] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melt flow indexaaaaaaaaaa
degree of graftingaaaaaaaaaa
Login to View More

Abstract

The invention relates to a polyamide composite material comprising raw materials of the following constituents (by weight proportion): nylon 66 sections 50-75%, carbon fiber 15-40%, compatibilzer 4-10%, anti-oxidant 0.1-1% and lubricating agent 0.1-0.5%. The invention also discloses the preparing process.

Description

technical field [0001] The invention relates to a polyamide composite material and a preparation method thereof, which can be used for injection molding and extrusion to manufacture military products, aerospace devices and sports medical devices, and belongs to the technical field of polyamide materials. Background technique [0002] Carbon fiber-reinforced composites have the advantages of light weight and high mechanical properties, especially flexural modulus or stiffness. To minimize weight, carbon fiber-reinforced materials are traditionally made using epoxy resins without fillers. Due to the use of hand lay-up or resin transfer molding processes, the material is often used to manufacture low-volume aerospace components, racing cars and other special products. However, the high cost of epoxy resin and the labor-intensive hand lay-up process limit the use of carbon fiber composites in industrial-scale applications. Due to the surface bonding ability of thermoplastics and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
03 May 2006
Publication
CN1765989A
IPC
C08L77/02; B29C48/395; C08K7/06
Inventors
辛敏琦; 陈晓东