Polycarbonate/polyamide alloy and preparation method thereof

A technology of polycarbonate and polyamide, which is applied in the field of polycarbonate/polyamide alloy and its preparation, can solve the problems of unsatisfactory physical and mechanical properties of the alloy, and the improvement effect is not obvious, so as to achieve good coating performance and improve comprehensive performance , Expand the effect of the application field

Inactive Publication Date: 2010-09-29
SHANGHAI KUMHO SUNNY PLASTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There are few domestic research reports on PC / PA alloys. Wu Shishan et al. used SMA and its self-made compatibilizer to study PC / PA alloys. Although the mechanical properties of the alloy have been improved, the improvement effect is still not obvious.
Fu Qiang and others also used SMA as a compatibilizer, and added an acrylic impact modifier to study the crystallinity of PC / PA alloy, but the physical and mechanical properties of the alloy were not ideal.

Method used

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  • Polycarbonate/polyamide alloy and preparation method thereof
  • Polycarbonate/polyamide alloy and preparation method thereof
  • Polycarbonate/polyamide alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 9

[0061] A kind of preparation method of polycarbonate / polyamide alloy, this method comprises the following steps:

[0062] (1) Prepare materials according to the components and content listed in Embodiment 1 to Embodiment 9 in Table 1;

[0063] (2) Put the above raw materials into a high-speed mixer and mix at high speed (1500-3000rpm) for 1-3 minutes;

[0064] (3) Low-speed (500-1000rpm) discharge;

[0065] (4) Put the mixed raw materials into a twin-screw machine to extrude and granulate. The rotating speed of the extruder is 180-600 rpm and the temperature is 190-260° C. to obtain a polycarbonate / polyamide alloy.

[0066] The polycarbonate / polyamide alloys prepared in Examples 1 to 9 were tested for performance, and the results are shown in Table 2.

[0067] The formula table (unit: kilogram) of table 1 comparative example 1~3 and embodiment 1~9

[0068] project

PC

PA

ABS resin

Compatibilizer 1

Compatibilizer 2

Compatibilizer 3

Antioxi...

Embodiment 10

[0088] A kind of preparation method of polycarbonate / polyamide alloy, this method comprises the following steps:

[0089] (1) Prepare materials according to the following components and contents:

[0090] Polycarbonate 40 kg

[0091] Polyamide 60kg

[0092] Toughener 15kg

[0093] Compatibilizer 1 3.3 kg

[0094] Compatibilizer 2 6.7 kg

[0095] Antioxidant 1076 0.05 kg

[0096] Antioxidant 168 0.05 kg

[0097] EBS 0.1 kg

[0098] Described polycarbonate is 201-10 of aliphatic polycarbonate DOW company; Described polyamide is PA66; Described toughening agent is granular ABS resin, and its glue content is 15%; Described Compatibilizer 1 is monofunctional styrene-maleic anhydride binary polymer (monomer ratio is ST: MAH=70:30 (weight ratio)); described compatibilizer 2 is monofunctional Reactively extruded ABS-g-GMA (ABS:GMA (glycidyl methacrylate)=95:5 (weight ratio));

[0099] (2) Put the above-mentioned raw materials into a high-speed mixer, and mix at a high speed o...

Embodiment 11

[0103] A kind of preparation method of polycarbonate / polyamide alloy, this method comprises the following steps:

[0104] (1) Prepare materials according to the following components and contents:

[0105] Polycarbonate 50kg

[0106] Polyamide 50kg

[0107] Toughener 20kg

[0108] Compatibilizer 3 8 kg

[0109] Antioxidant 1076 0.2 kg

[0110] Antioxidant 168 0.2 kg

[0111] EBS 2.5 kg;

[0112] The polycarbonate is aromatic polycarbonate Bayer 1805; the polyamide is PA6; the toughening agent is granular ABS resin with a glue content of 50%; the compatibilizer 3 is bismuth Functional styrene terpolymer containing glycidyl methacrylate (GMA) and maleic anhydride (MAH) bifunctional monomer (monomer ratio is GMA: ST: MAH=10: 80: 10 (weight Compare));

[0113] (2) Put the above raw materials into a high-speed mixer, and mix at a high speed of 150rpm for 3 minutes;

[0114] (3) Low speed 500rpm discharge;

[0115](4) Put the mixed raw materials into a twin-screw machine to...

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Abstract

The invention relates to a polycarbonate / polyamide alloy and a preparation method thereof. The alloy contains the following components by weight percentage: 30-80 of polycarbonate, 20-70 of polyamide, 5-30 of toughening agent, 1.5-15 of compatibilizer and 0.2-3 of assistant; wherein the contents of the toughening agent, the compatibilizer and the assistant are based on the total weight of the polycarbonate and the polyamide. Compared with the prior art, due to the blending of the polycarbonate and the polyamide with the excellent compatibilizer in the preparation method, the preparation process is reasonable, the prepared polymer has good paint adhesion, solvent resistance and impact resistance and simultaneously combines the low moisture absorption, heat resistance, wear resistance and self-lubricity of the polycarbonate, and the polycarbonate / polyamide alloy can be widely applied in automobiles (front and rear baffles, column covers, wheel covers and instrument covers), electronic appliances (electric tool housings, wiring devices and relays) and other fields.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polycarbonate / polyamide alloy and a preparation method thereof. The alloy has excellent performance and can be widely used in parts such as automobiles and electronic appliances. Background technique [0002] Polycarbonate (PC) is an increasingly widely used engineering plastic, which has excellent properties such as impact resistance, dimensional stability, heat resistance, and transparency. However, it also has disadvantages such as difficult processing, large residual stress of products, easy stress cracking, sensitivity to notch, poor solvent resistance and poor wear resistance, which restrict its application in many fields. [0003] Therefore, alloying PC to improve the performance of PC and reduce cost is an important research direction of PC modification. At present, the successfully developed PC alloys include PC / ABS, PC / PET, PC / PBT, PC / PE (polyethylene )Wait...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L77/00B29B9/00B29C47/92B29C48/92
CPCB29C48/04
Inventor 段春来田冶李荣群辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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